soil report

Engineering & Laboratory Services (Pvt) Ltd

of 14

GEOTECHNICAL INVESTIGATION FOR THE PROPOSED FORTY FIVE STORIED

BUILDING COMPLEX AT RAJAGIRIYA.

1.0 Introduction

It is proposed to construct a forty five storied building complex for Maga Engineering (Pvt) Ltd.

M/s. Engineering and Laboratory Services (Pvt) Ltd. were authorized by M/s. Maga

Engineering (Pvt) Ltd, to carry out the soil investigation at above site by advancing thirteen

boreholes at the locations within the proposed investigated area. Thirteen boreholes were done

accordingly and the borehole data together with the SPT values with depth and description of

soil encountered are included to this report. The report embodies the findings and determinations

of above investigation.

2.0 Site Description

The soil investigation area is located in Rajagiriya. Previously it was a marshy land and then

land preparation was done by filling (approximately up to 3.5m) to make it flat. The water level

of nearest water source (Diyawanna stream) was encountered as the depth of 2.3m from surface

level of borehole BH-08.

After land preparation

The detail description of the locations of the boreholes is descriptively shown in the figure 1 (a)

and 1(b).

The drilling was carried out under sunny weather conditions.

3.0 Field Investigation

Field investigation consisted of advancing six boreholes at the location marked as BH-01, BH-

01,…, BH-12, and BH-13.

The boreholes were advanced with a rotary - drilling machine. The drilling was carried out with

overburden cutting tools and adopting the wash boring process to remove the cuttings from the

bottom of the borehole.

Standard Penetration Tests (SPT) was carried out in regular intervals in the overburden. This test was carried out as specified in BS 1377.


of 14

Disturbed samples of soil were collected both from the SPT tube and the cuttings collected from the washings.

Ground Water Level (GWL) was determined as the depth at which the water level stabilized

inside the borehole.

The field investigation was commenced on 25th of January, 2013. The summary of the borehole investigation is given in Table 1. Table 1: Summary of the Borehole Investigation

Borehole No

Ground Water Level (m)

Overburden Drilling

(m)

Rock Drilling (m)

Total Depth

(m)

BH-01 0.80 17.30 3.00 20.30

BH-02 0.30 22.10 3.20 25.30

BH-03 0.30 22.60 6.00 28.60

BH-04 0.50 16.50 4.00 20.50

BH-05 0.30 19.80 3.45 23.25

BH-06 0.30 25.20 3.00 28.20

BH-07 0.60 14.20 3.50 17.70

BH-08 0.30 19.50 4.00 23.50

BH-09 1.20 27.20 5.00 32.20

BH-10 0.20 10.10 13.60 3.50

BH-11 0.10 19.80 3.20 23.00

BH-12 0.20 17.20 3.00 20.20

BH-13 0.50 23.20 4.00 26.20


of 14

4.0 Subsurface Conditions The results of the borehole investigation are given in the annexure I. Using this, profile of subsurface conditions across boreholes has been constructed and this is

shown in Figures 2(a) to 2(f).

5.1 Subsurface conditions across borehole BH-01 (Figure 2(a))

The results indicate that,

(i) The groundwater level (GWL) was encountered at the depth of 0.80m, 0.50m and

0.60m at borehole BH-01, BH-04 and BH-07 respectively.

(ii) The uppermost made ground layer was encountered up to the depth of 2.10m, 2.90m

and 2.90m then followed by an organic matters to organic clay layer at the depth of

4.30m, 5.30m and 7.20m at borehole BH-01, BH-04 and BH-07 respectively.

(iii) A medium dense to dense sand layer was found up to the depth of 10.10m at BH-01.

(iv) A soft to stiff silty to sandy clay layer was found up to the depth of 10.30m and

10.20m at borehole BH-04 and BH-07 respectively.

(v) Completely weathered rock layer was then found until the depth of 17.30m, 16.50m

and 14.20m at BH-01, BH-04 and BH-07 respectively then boreholes were further

penetrated into basement rock and the rock coring parameters are mentioned below

Borehole

No Depth (m)

Core

Recovery (%) RQD (%)

17.30 – 18.80 87 63 BH-01

18.80 – 20.30 100 93

16.50 – 18.00 100 44

18.00 - 19.50 83 53 BH-04

19.50 – 20.50 96 65

14.20 – 15.70 73 0

15.70 – 16.70 100 24 BH-07

16.70 – 17.70 100 80


of 14

5.2 Subsurface conditions across borehole BH-02, BH-05, and BH-08 (Figure 2(b))


(vi) The groundwater level (GWL) was encountered at the depth of 0.30m at the

boreholes BH-02, BH-05 and BH-08.

(vii) The uppermost made ground layer was encountered up to the depth of 2.80m, 2.60m

and 4.20m then followed by very soft organic clay layer at the depth of 4.60m, 7.10m

and 7.50m at borehole BH-02, BH-05 and BH-08 respectively.

(viii) A very soft to soft sandy clay layer was found up to the depth of 5.70m, 9.00m and


(ix) A very stiff sandy clay layer was found up to the depth of 7.50m, 10.20m and


(x) A very soft sandy lateritic clay layer was found up to the depth of 9.00m at borehole

BH-02.

(xi) Completely weathered rock layer was then found until the depth of 22.10m, 19.80m



Borehole

No Depth (m)

Core


22.10 – 23.10 80 0

23.10 – 24.10 83 70 BH-02

24.10 – 25.30 91 83

19.80 – 22.50 82 41 BH-05

22.50 – 23.25 100 77

19.50 – 21.50 12.5 0

21.50 – 22.50 74 48 BH-08

22.50 – 23.50 100 85


of 14

5.3 Subsurface conditions across borehole BH-03, BH-06, and BH-09 (Figure 2(c))


(xii) The groundwater level (GWL) was encountered at the depth of 0.30m, 0.30m and

1.20m at the boreholes BH-03, BH-06 and BH-09 respectively.

(xiii) The uppermost made ground layer was encountered up to the depth of 1.80m, 3.60m

and 2.90m at the boreholes BH-03, BH-06 and BH-09 respectively.

(xiv) A very soft organic clay layer was found up to the depth of 7.40m and 7.30m at

borehole BH-06 and BH-09 respectively

(xv) A very soft to firm, sandy to gravelly clay layer was found up to the depth of 7.50m,

10.30m and 12.00m at borehole BH-03, BH-06 and BH-09 respectively.

(xvi) Completely weathered rock layer was then found until the depth of 22.60m, 25.20m



Borehole

No Depth (m)

Core


22.60 – 24.60 17 0

24.60 – 26.60 35 5

26.60 – 27.60 78 0 BH-03

27.60 – 28.60 93 55

25.20 – 26.20 98 0

26.20 – 27.20 96 55 BH-06

27.20 – 28.20 100 62

27.20 – 28.70 67 8

28.70 – 30.20 60 0

30.20 – 31.20 100 15 BH-09

31.20 – 32.20 100 77


of 14

5.4 Subsurface conditions across boreholes BH-11 and BH-10 (Figure 2(d))


(xvii) The groundwater level (GWL) was encountered at the depth of 0.10m and 0.20m at

the boreholes BH-11 and BH-10.

(xviii) The uppermost made ground layer was encountered up to the depth of 2.10m at BH-

11 and uppermost sandy clay layer was found up to the depth of 1.00m at BH-10.

(xix) A very soft organic clay layer was found up to the depth of 5.00m at BH-11.

(xx) A very soft clay layer was found up to the depth of 2.00m then followed by very soft

sandy clay layer at the depth of 3.50m at BH-10.

(xxi) A firm to very stiff sandy clay layer was found up to the depth of 11.30m at BH-11.

(xxii) A firm to very stiff sandy to gravelly clay layer was found up to the depth of 17.15m,

and 7.30m at borehole BH-11 and BH-10 respectively.

(xxiii) Completely weathered rock layer was then found until the depth of 19.80m, and

10.10m at BH-11 and BH-10 respectively then boreholes were further penetrated into

basement rock and the rock coring parameters are mentioned below

Borehole

No Depth (m)

Core


19.80 – 20.80 100 90

20.80 – 21.80 100 99 BH-11

21.80 – 23.00 100 98

10.10 – 11.60 36 15

11.60 – 12.60 100 100 BH-10

12.60 – 13.60 100 96


of 14

5.5 Subsurface conditions across boreholes BH-12 (Figure 2(e))


(i) The groundwater level (GWL) was encountered at the depth of 0.20m at the

boreholes BH-12.

(ii) The uppermost made ground layer was encountered up to the depth of 1.80m at BH-

12.

(iii) A very soft organic clay layer was found up to the depth of 4.10m then followed by

very soft sandy lateritic clay layer at the depth of 6.00m at BH-12.

(iv) A stiff sandy lateritic clay layer was found up to the depth of 12.00m at BH-12.

(v) A soft sandy lateritic clay layer was found up to the depth of 13.50m.

(vi) Completely weathered rock layer was then found until the depth of 17.20m, and then

borehole was further penetrated into basement rock and the rock coring parameters

are mentioned below

5.6 Subsurface conditions across boreholes BH-12 (Figure 2(f))


(vii) The groundwater level (GWL) was encountered at the depth of 0.50m at the

boreholes BH-13.

(viii) The uppermost made ground layer was encountered up to the depth of 2.70m.

(ix) A very soft organic clay layer was found up to the depth of 5.80m then followed by

soft sandy lateritic clay layer at the depth of 9.00m.

(x) Completely weathered rock layer was then found until the depth of 23.20m, and then

borehole was further penetrated into basement rock and the rock coring parameters

are mentioned below

Engineering & Laboratory Services (Pvt) Ltd, 26th February, 2013

Borehole No Depth (m) Core Recovery (%) RQD (%)

17.20 – 18.70 80 47 BH-12

18.70 – 20.20 93 60

Borehole No Depth (m) Core Recovery (%) RQD (%)

23.20 – 24.20 80 24 BH-13

24.20 – 25.20 87 18

25.20 – 26.20 92 70

0.00

D1 DS 0.00

1.00

D2 SS G.W.L 1 2 3 5

at

WS 0.80 m

2.00

D3 SS

WS

3.00

D4 SS

4.00 WS

D5 SS 15 16 10 26

5.00

WS

6.00

D6 SS 6.00 16 11 12 23

7.00 WS

D7 SS 7.50 5 6 8 14

8.00

WS

9.00

D8 SS 9.00 13 16 19 35

10.00 WSLogged By :

SPT N - Natural Moisture Content

is given (not N-value) Supervised By:GWL

NE Drilled By:

Ground level

4.30

FREE DOWN

FREE DOWN

MADE GROUND

2.10

Offwhite, light brown, fine to coarse sand with brick fragments and concrete fragments

Loose reddish brown, fine to coarse sand with partly decomposed organic matters

Black AMOR-PHOUS ORGANIC mattersNO SAMPLE

Field Records (SPT)

15cm

15cm N

15cmSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

Lege

nd Soil Description

01.02.2013 Casing Diameter

Dep

th (m

)

Drilling Method28950

Casing depth 17.30Elevation (m) Coordinates76mm

145814

Format No: ELS-SI-02

Project Borehole NoSoil Investigation at Rajagiriya BH-01

ENGINEERING & LABORATORY SERVICES (PVT) LTD. SITE INVESTIGATIONS DIVISION

NO 62/3, Neelammahara Road, Katuwawala, Sri Lanka.

Tel: 0114 309 494

354mm

1 ofSheet0.80mGround Water level

M.s/Maga Engineering (Pvt) LtdRig Joy

Clay Silt Sand

FD - Free Down

Made Ground

Client

Date of StartedLocation

31.01.2013Rajagiriya Core Diameter

Rotary

Organic Matter Completely Weathered Rock

W - Water Sample

Silty SandLaterite Nodules Gravel

RQD-Rock Quality Designation (%)

V - Vane Shear Test

Nishantha

HB -Hammer Bounce Cr - Core Recovery (%)

UD- Undisturbed Sample: Ground Water Level observed inside the

CS- Core Sample Borehole, after the saturationNot Encountered

WS-Wgrey Sample

O - Organic contentB - Bulk DensitySG -Specific Gravity Test

pH - Chemical

RemarksSample Key / Test Key

CU - Consolidated Undrained

Fresh Rock Highly Weathered Rock

Premadasa

Existing ground level considered as the zero level

C - Consolidation

Lakshitha

Cl- - Cloride ContentSO4

2- - Sulphate Content

UU-Unconsolidated Undrained

Where full 0.3m penetration has not been achieved

G - Grain Size AnalysisL - Atterberg Limit Test UCT-Unconfined Compression the number of blows for the quoted penetration SS -SPT Sample

D - Disturbed Sample

Dense gray,pink, yellowish brown, white fine SAND

6050

35

Moisture Content - %Undrained Shear Strength - t/m2

4010 20 30 70 9080

2515

SPT Resistance - Blows/ft5 3010 20 4540

Medium dense reddish brown fine to coarse SAND with fine me medium sub-rounded to

sub-angular gravels

Medium dense reddish brown fine to coarse lateritic SAND with fine me medium sub-

rounded to sub-angular gravels

Medium dense reddish brown yellowish brown fine slightly clayey SAND with gray

SILTY CLAY

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

5

0

0

26

23

14

35

10.00

D9 SS 10 13 15 28

11.00

WS

12.00

D10 SS 7 13 31 44

13.00 WS

D11 SS HB >50

14.00

WS

15.00

D12 SS HB >50

16.00

WS

17.00

18.00

CS

19.00

CS

20.00Logged By :



NE Drilled By:

WS-Wgrey Sample

Remarks

Gray, white, black, silty fine sand with mica

18.80

RQD=63%

Cr=100% RQD=93%

V - Vane Shear TestB - Bulk Density

Sample Key / Test Key

: Ground Water Level observed inside the SG -Specific Gravity Test


G - Grain Size Analysis

D - Disturbed SampleSS -SPT Sample L - Atterberg Limit Test the number of blows for the quoted penetration

Silt Completely Weathered Rock

Premadasa

NishanthaW - Water Sample

Lakshitha

SO42- - Sulphate Content

Organic Matter

GravelRQD-Rock Quality Designation (%)

Highly Weathered Rock Silty SandLaterite Nodules

Fresh Rock

Cl- - Cloride Content


UU-Unconsolidated Undrained CU - Consolidated Undrained

C - ConsolidationUCT-Unconfined Compression

O - Organic contentpH - Chemical

Sand

UD- Undisturbed SampleCS- Core Sample

FD - Free Down

Made Ground

HB -Hammer Bounce

Borehole, after the saturationNot Encountered

Clay

Cr - Core Recovery (%)

Cr=87%

N

15cm

NO SAMPLE

NO SAMPLE

1510515cm

SPT Resistance - Blows/ft4530 403520 25

Client

17.30 Coordinates

Field Records (SPT)

Moisture Content - %

2

Casing depth

70Soil Description 90

M.s/Maga Engineering (Pvt) Ltd

145814

15cm

0.80mRotary

Core DiameterJoy31.01.2013

20 40



Tel: 0114 309 494

Sheet ofProject


Borehole No BH-01Soil Investigation at Rajagiriya

3

30Undrained Shear Strength - t/m2

Elevation (m) 28950

60 8050

Sa.T

ype

54mm

10

Rig Ground Water level

10.10

17.30

RajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of Started76mm

Continue from Page 1

Drilling Method01.02.2013

Dep

th (m

)

Lege

nd

Casing Diameter

COMPELETLY WEATHERED ROCK

Slightly weathered gray, offwhite, highly fractured BIOTITE GNEISS

ROCK LEVEL

Slightly weathered gray, offwhite, moderatly fractured BIOTITE GNEISS

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

44

>50

>50

28

20.00

21.00

22.00

23.00

24.00

25.00

26.00

27.00

28.00

29.00

30.00Logged By :



NE Drilled By:

Highly Weathered Rock Fresh Rock

Made Ground Clay Sand Organic Matter Silty Sand

FD - Free Down

Silt Gravel Laterite Nodules Completely Weathered Rock

PremadasaCr - Core Recovery (%) SO4

2- - Sulphate ContentRQD-Rock Quality Designation (%) Cl- - Cloride Content

HB -Hammer Bounce

Lakshitha Borehole, after the saturation UD- Undisturbed Sample B - Bulk Density pH - ChemicalNot Encountered CS- Core Sample V - Vane Shear Test O - Organic content

Nishantha the number of blows for the quoted penetration SS -SPT Sample L - Atterberg Limit Test UCT-Unconfined CompressionWhere full 0.3m penetration has not been achieved D - Disturbed Sample C - Consolidation


W - Water Sample

Sample Key / Test Key Remarks

G - Grain Size Analysis CU - Consolidated Undrained : Ground Water Level observed inside the WS-Wgrey Sample SG -Specific Gravity Test UU-Unconsolidated Undrained

4520 25Continue from Page 2 5 10 15

80 90

SPT Resistance - Blows/ft

15cm

15cm

15cm N 30 35 40

Field Records (SPT)


10 20 30 40 50 60 70

Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype

Casing Diameter 76mmR

educ

ed

leve

l

Dep

th (m

)

Lege

nd Soil Description

0.80m

Coordinates 145814Elevation (m) 28950Casing depth 17.30

3 of 3Location Rajagiriya Rig Joy Core Diameter 54mm Ground Water levelClient M.s/Maga Engineering (Pvt) Ltd Sheet

Date of Started 31.01.2013 Drilling Method RotaryDate of Finished 01.02.2013


Project Soil Investigation at Rajagiriya Borehole No BH-01



Tel: 0114 309 494

20.30 END OF THE BOREHOLE AT 20.30 m

Same as previous description

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

0.00

D1 DS 0.00

G.W.L

1.00 at

D2 SS 0.30m 4 3 3 6

D3 DS

2.00

D4 SS 3 2 3 5

WS

3.00 2.80D5 SS

4.00 WS

D6 SS

5.00

WS

6.00 5.70D7 SS 3 8 11 19

7.00 WS

D8 SS 7.50 1 2 3 5

8.00

WS

9.00

D9 SS 9.00 5 11 16 27

10.00 WSLogged By :



NE Drilled By:


Ground level

Field Records (SPT)

15cm

15cm N

15cm

FREE DOWN

FREE DOWN

Lege

nd Soil Description

Yellowish brown, fine to coarse very sandy clay

Sa.N

O.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

45258Casing depth 22.10Elevation (m) Coordinates 144005





Tel: 0114 309 494

3

Drilling Method54mm


M.s/Maga Engineering (Pvt) LtdRig EDECO Core Diameter

Clay Silt Sand

FD - Free Down

Made Ground

76mm04.02.2013

Client


03.02.2013Rajagiriya

Casing Diameter

Dep

th (m

)

WS-Wgrey Sample

Rotary


Soft reddish brown, yellowish brown, SANDY LATERITIC CLAY

SS -SPT SampleD - Disturbed Sample

FILL

Very soft black fibrous ORGANIC CLAY


W - Water Sample



V - Vane Shear Test

SG -Specific Gravity Test

Nishantha



CS- Core Sample Borehole, after the saturationNot Encountered O - Organic content

B - Bulk Density pH - Chemical


Rathnayake


C - Consolidation

Lakshitha



UU-Unconsolidated Undrained G - Grain Size AnalysisL - Atterberg Limit Test UCT-Unconfined Compression


CU - Consolidated Undrained the number of blows for the quoted penetration

50

4025


4010 20 30 70 908060

3515


4.60

Very soft gray medium to fine SANDY LATERITIC CLAY

Very stiff reddish brown, yellowish brown, SANDY LATERITIC CLAY

Pinkish gray fine to medium sandy clay with silt

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

6

5

0

0

18

5

27

10.00

D10 SS 4 6 9 15

11.00

WS

12.00

D11 SS 8 10 13 23

13.00 WS

D12 SS 13.50 4 8 10 18

14.00

WS

15.00

D13 SS 10 15 18 33

16.00

WS

17.00

D14 SS 4 6 11 17

18.00

WS

19.00

D15 SS 19.00 6 11 13 24

WS

20.00Logged By :



NE Drilled By:

Black white clay with abandance of mica


15 403520 25

V - Vane Shear Test


Remarks

W - Water Sample

Lakshitha





D - Disturbed SampleSS -SPT Sample

B - Bulk DensityWS-Wgrey Sample


Rathnayake

Organic Matter



Fresh Rock






Nishantha

Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay


L - Atterberg Limit Test


Black white fine to medium sandy clay with mica


the number of blows for the quoted penetration

N

15cm

70Soil Description

10515cm

SPT Resistance - Blows/ft4530

905040 60 80

Client

22.10 Coordinates

Field Records (SPT)


2

Casing depthGround Water level


144005

15cm



Tel: 0114 309 494

Sheet ofProject



0.30mRotary

Core DiameterEDECO3

03.02.2013

20 30Undrained Shear Strength - t/m2

Elevation (m) 45258

54mm

10

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e76mm



Dep

th (m

)

Lege

nd

Casing Diameter

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

23

18

33

17

24

12

20.00

21.00

D16 SS 28 30 HB >50

22.00 WS

23.00

24.00

25.00

25.30

26.00

27.00

28.00

29.00

30.00Logged By :



NE Drilled By:

Cr=91% RQD=83%

Gray, black, highly discolored, highly fractured BIOTITE GNEISS

Gray, black, slightly fractured BIOTITE GNEISS

Gray, black, slightly fractured BIOTITE GNEISS

Cr=80% RQD=0%

Cr=83% RQD=70%

22.10

24.10

23.10

END OF THE BOREHOLE AT 25.30m

ROCK LEVEL




FD - Free Down RQD-Rock Quality Designation (%)


RathnayakeCr - Core Recovery (%) SO4

2- - Sulphate ContentCl- - Cloride Content

HB -Hammer Bounce




W - Water Sample




80 90


15cm

15cm

15cm N 30 35 40

Field Records (SPT)


10 20 30 40 50 60 70

Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype

Red

uced

le

vel

Dep

th (m

)

Lege

nd Soil Description

Date of Finished 04.02.2013 Casing Diameter 76mmDate of Started 28.01.2013 Drilling Method Rotary

0.30m


BH-02

of 3Location Rajagiriya Rig EDECO Core Diameter 54mm Ground Water level




Tel: 0114 309 494

Client M.s/Maga Engineering (Pvt) Ltd Sheet 3

Project Soil Investigation at Rajagiriya Borehole No

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

50

0.00

D1 DS 0.00

G.W.L

1.00 at

D2 SS 0.30 m 1 1 1 2

D3 DS

2.00

D4 SS 2 2 2 4

WS

3.00

D5 SS 1 2 3 5

4.00 WS

D6 SS 2 3 4 7

5.00

WS

6.00

D7 SS 1 3 5 8

7.00 WS

D8 SS 7.50 3 6 8 14

8.00

WS

9.00

D9 SS 9.00 7 8 11 19

10.00 WSLogged By :



NE Drilled By:

Ground level

1.80

Field Records (SPT)

15cm

15cm N

15cmLe

gend Soil Description

FILL

Sa.N

O.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype






Tel: 0114 309 494

3

Drilling Method54mm



Clay Silt Sand

FD - Free Down

Made Ground

76mm30.01.2013

Client



Casing Diameter

Dep

th (m

)

WS-Wgrey Sample

Rotary


Grayish brown, medium to coarse sandy claywith fine to medium angular gravels

Soft blackish brown, medium SANDY CLAY with organic matter

Soft grayish brown, fine to medium sub-rounded quartz GRAVELLY CLAY with

organic matters

3.10

4.30


W - Water Sample



V - Vane Shear Test


Nishantha




B - Bulk Density pH - Chemical


Dhanushka


C - Consolidation

Lakshitha




Very stiff brownish yellow silty clay with lateritic gravels and mica traces



CU - Consolidated Undrained the number of blows for the quoted penetration SS -SPT Sample


50

4025


4010 20 30 70 908060


Firm whitish brown, fine to medium sub-rounded LATERITIC GRAVELLY CLAY

Stiff brownish yellow silty clay with lateritic gravels and mica traces


1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

2

4

5

7

8

14

19

10.00

D10 SS 10.50 5 6 12 18

11.00

WS

12.00

D11 SS 12.00 7 11 12 23

13.00 WS

D12 SS 10 13 17 30

14.00

WS

15.00

D13 SS 7 10 17 27

16.00

WS

17.00

D14 SS 7 11 19 30

18.00

WS

19.00

D15 SS 19.00 7 10 17 27

WS

20.00Logged By :



NE Drilled By:

Remarks

15 403520 25

V - Vane Shear Test



Very stiff grayish brown, fine sandy clay with mica traces


WS-Wgrey Sample






B - Bulk Density



Dhanushka

Organic Matter



Fresh Rock






Nishantha

Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay


W - Water Sample

Lakshitha


N

15cm

70Soil Description

10515cm


905040 60 80

Client

22.60 Coordinates

Field Records (SPT)


2



145834

15cm



Tel: 0114 309 494

Sheet ofProject



0.30mRotary

Core DiameterEDECO3

28.01.2013


Elevation (m) 63473

54mm

10

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e76mm



Dep

th (m

)

Lege

nd

Casing Diameter


Very stiff offwhite sandy clay with mica traces


Very stiff yellowish brown silty clay with mica traces

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

23

30

27

30

27

12

20.00

21.00

D16 SS HB >50

22.00 WS

23.00

24.00

25.00

26.00

27.00

28.00

29.00

30.00Logged By :



NE Drilled By:

Cr=78% RQD=0%

Cr=93% RQD=55%


Made Ground

22.60

Cr=17% RQD=0%

Cr=35% RQD=0%

Gray, white, highly fractured GRANITIC GNEISS

Gray, white, highly fractured GRANITIC GNEISS

Clay Sand Organic Matter Silty Sand

FD - Free Down RQD-Rock Quality Designation (%) Cl- - Cloride Content

Silt Gravel Laterite Nodules

DhanushkaCr - Core Recovery (%) SO4


Completely Weathered Rock

HB -Hammer Bounce




W - Water Sample


END OF THE BOREHOLE AT 28.60 m28.60



80 90


15cm

15cm

15cm N 30 35 40

Field Records (SPT)


10 20 30 40 50 60 70

Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype

Red

uced

le

vel

Dep

th (m

)

Lege

nd Soil Description


0.30m


BH-03





Tel: 0114 309 494



27.60

26.60

24.60


Hard grayish brown, fine sandy clay with mica traces


ROCK LEVEL

Gray, white, highly fractured GARNET BIOTITE GNEISS

Gray, white,fractured GARNET BIOTITE GNEISS, fracture Index : 3m-1

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

>50

0.00

D1 DS 0.00

1.00 G.W.L

D2 SS at 2 2 3 5

0.50 m

WS

2.00

D3 SS

WS

3.00

D4 SS

4.00 WS

D5 SS

5.00

WS

6.00

D6 SS 5 4 4 8

7.00 WS

D7 SS 7.50 1 3 6 9

8.00

WS

9.00

D8 SS 9.00 2 4 7 11

10.00 WSLogged By :



NE Drilled By:

Ground level

FREE DOWN

FREE DOWN

Reddish brown, brown, fine to coarse sand

Loose reddish brown, fine to coarse sand with some fine gravels

Field Records (SPT)

15cm

15cm N

15cmSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

Lege

nd Soil Description


Dep

th (m

)


Casing depth 16.50mElevation (m) Coordinates76mm

125471





Tel: 0114 309 494

354mm



Clay Silt Sand

FD - Free Down

Made Ground

Client



Rotary


W - Water Sample



V - Vane Shear Test

Nishantha




WS-Wgrey Sample


pH - Chemical




Premadasa


C - Consolidation

Lakshitha







50

35 40


4010 20 30 70 908060

2515


Stiff gray, reddish brown, yellowish brown, offwhite fine to coarse SANDY CLAY

2.90

FREE DOWN

Very soft yellowish brown, fine to coarse sandy clay with some fine to medium gravels

MADE GROUND

Black FIBROUS ORGANIC matters

5.30

Firm brownish gray fine to coarse SANDY CLAY

Firm reddish brown fine to coarse SANDY CLAY

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

5

0

0

0

8

9

11

10.00

D9 SS 10.30 7 8 8 16

11.00

WS

12.00

D10 SS 12.00 14 18 HB >50

13.00 WS

D11 SS HB >50

14.00

WS

15.00

D12 SS HB >50

16.00

WS

16.50

17.00

CS

18.00

18.00

19.00 CS

19.5020.00 CS

Logged By :SPT N - Natural Moisture Content


NE Drilled By:

WS-Wgrey Sample

Remarks

403520 25


Slightly weathered, discolored, very highly fractured, gray, white black BIOTITE

GNEISS

Fresh highly fractured, gray, white black BIOTITE GNEISS

15

V - Vane Shear Test







B - Bulk Density



Premadasa

Organic Matter



Fresh Rock






Nishantha

Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay


W - Water Sample

Lakshitha


N

15cm

70Soil Description

10515cm


905040 60 80

Client

16.50m Coordinates

Field Records (SPT)


2



125471

15cm



Tel: 0114 309 494

Sheet ofProject



0.50mRotary

Core DiameterJoy3

06.02.2013


Elevation (m) 27460

54mm

10

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e76mm



Dep

th (m

)

Lege

nd

Casing Diameter

Cr=96% RQD=65%

Medium dense black reddish brown, yellowish brown fine to medium sand with

mica traces

Very dense gray black, white silty fine sand with mica traces

ROCK LEVEL

Slightly weathered, discolored, very highly fractured, gray, white black BIOTITE

GNEISSCr=100% RQD=44%

Cr=83% RQD=53%



NO SAMPLE

NO SAMPLE

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

50

>50

>50

12

20.00

20.50

21.00

22.00

23.00

24.00

25.00

26.00

27.00

28.00

29.00

30.00Logged By :



NE Drilled By:



FD - Free Down




HB -Hammer Bounce




W - Water Sample




80 90


15cm

15cm

15cm N 30 35 40

Field Records (SPT)


10 20 30 40 50 60 70

Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype


educ

ed

leve

l

Dep

th (m

)

Lege

nd Soil Description

3Location Rajagiriya Rig Joy Core Diameter 54mm Ground Water level 0.50m

Date of Finished 06.02.2013

3 of

Coordinates 125471Elevation (m) 27460Casing depth

Client M.s/Maga Engineering (Pvt) Ltd Sheet

Date of Started 06.02.2013 Drilling Method Rotary 16.50m





Tel: 0114 309 494

END OF THE BOREHOLE AT 20.50 m


1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

0.00

D1 DS 0.00

G.W.L

1.00 at

D2 SS 0.30 m 3 4 4 8

WS

2.00

D3 SS 3 3 4 7

WS

3.00

D4 SS

4.00 WS

D5 SS 4.50

5.00

WS

6.00

D6 SS

7.00 WS

D7 SS

8.00

WS

9.00

D8 SS 9.00 10 14 15 29

10.00 WSLogged By :



NE Drilled By:

FREE DOWN

FREE DOWN

FREE DOWN

FREE DOWN

2.60

FILL

7.10

Brown fine to medium sandy clay with few gravels

Firm brown, yellowish brown, reddish brown, black medium to coarse sandy clay

Very soft balck ORGANIC CLAY

Very soft balck ORGANIC CLAY with partly decomposed timber particles

Very soft brownish gray fine to medium SANDY CLAY with some fine sub-rounded

gravels

15



4010 20 30 70 90806050

4025

CU - Consolidated Undrained the number of blows for the quoted penetration SS -SPT Sample


W - Water SampleUU-Unconsolidated Undrained

G - Grain Size AnalysisL - Atterberg Limit Test UCT-Unconfined Compression


Very stiff reddish brown, gray medium to coarse SANDY CLAY

Nishantha

pH - Chemical


Premadasa


C - Consolidation

Lakshitha


2- - Sulphate ContentHB -Hammer Bounce Cr - Core Recovery (%)



B - Bulk Density




V - Vane Shear Test


Casing Diameter

Dep

th (m

)

WS-Wgrey Sample

Ground level

Field Records (SPT)

15cm

15cm N

15cm

Rotary


Client


13.02.2013Rajagiriya Joy

Date of Finished

Core Diameter

Clay Silt Sand

FD - Free Down

Made Ground

76mm15.02.2013

Sa.N

O.

3

Drilling Method54mm


M.s/Maga Engineering (Pvt) LtdRig





Tel: 0114 309 494


Lege

nd Soil Description

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

8

7

0

0

0

0

29

10.00

10.20D9 SS 5 11 12 23

11.00

WS

12.00

D10 SS 12.00 4 5 5 10

13.00 WS

D11 SS 5 7 8 15

14.00

WS

15.00

D12 SS 15.00 7 11 12 23

16.00

WS

17.00

D13 SS 17.00 >50

18.00

WS

19.00

D14 SS >50

WS

20.00 19.80Logged By :



NE Drilled By:

76mm


ROCK LEVELSame as next description


Very stiff yellowish brown, offwhite, slightly fine sandy clay with som mica


Stiff black offwhite slightly fine sandy silty with some mica


Very Stiff black off white slightly fine sandy silty clay with some mica


Dep

th (m

)

Lege

nd

Casing Diameter

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e

3

13.02.2013


Elevation (m) 44858

54mm

10

0.30mRotary

Core DiameterJoy

15cm



Tel: 0114 309 494

Sheet ofProject



Client

19.80 Coordinates

Field Records (SPT)


2



125105

905040 60 80

N

15cm

70Soil Description

10515cm


W - Water Sample

Lakshitha


Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay







Nishantha


Premadasa

Organic Matter



Fresh Rock






B - Bulk Density


V - Vane Shear Test


Hard black off white fine sandy clay with some mica



5cm/50

3cm/50

WS-Wgrey Sample

15 403520 25

Remarks

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

10

>50

>50

23

15

23

20.00

21.00 CS

21.50

22.00

CS

23.00

23.25

24.00

25.00

26.00

27.00

28.00

29.00

30.00Logged By :



NE Drilled By:

RQD=41%

RQD=77%





Tel: 0114 309 494



of 3Location Rajagiriya Rig Joy Core Diameter 54mm Ground Water level 0.30m

Coordinates 125105Elevation (m) 44858Casing depth 19.80Date of Started 13.02.2013 Drilling Method Rotary

Date of Finished 15.02.2013 Casing Diameter 76mmR

educ

ed

leve

l

Dep

th (m

)

Lege

nd Soil Description

Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype Field Records

(SPT)


10 20 30 40 50 60 70 80 90


15cm

15cm

15cm N 30 35 40Continue from Page 2 5 10 15 4520 25

CU - Consolidated Undrained : Ground Water Level observed inside the WS-Wgrey Sample SG -Specific Gravity Test UU-Unconsolidated Undrained

W - Water Sample



O - Organic content



HB -Hammer Bounce

Lakshitha Borehole, after the saturation UD- Undisturbed Sample B - Bulk Density pH - ChemicalNot Encountered CS- Core Sample V - Vane Shear Test


2- - Sulphate ContentCl- - Cloride Content

Silt Gravel Laterite Nodules Completely Weathered Rock Silty Sand

FD - Free Down RQD-Rock Quality Designation (%)


Made Ground

Slightly weathered gray, offwhite garnet BIOTITE GNEISS

Fresh gray, offwhite garnet BIOTITE GNEISS

Cr=82%

Cr=100%

Clay Sand Organic Matter

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

0.00

D1 DS 0.00

G.W.L

1.00 at

D2 SS 0.30 m 2 3 1 4

WS

2.00

D3 SS 1 0 1 1

WS

3.00

D4 SS 2 2 2 4

4.00 WS

D5 SS 1 0 0 0

5.00

WS

6.00

D6 SS 1 0 0 0

7.00 WS

D7 SS 7.40 2 2 3 5

8.00

WS

9.00

D8 SS 9.00 2 3 4 7

10.00 WSLogged By :



NE Drilled By:

Soft gray, fine to medium slightly SANDY CLAY

Firm light gray, brown, yellow fine to medium SANDY CLAY

Ground level

3.60FILL

Yellowish brown, reddish brown brown, medium to coarse sandy clay

Soft yellowish brown, reddish brown brown, medium to coarse sandy clay with mica

Very soft brown, fine to medium sandy clay with some gravels

Very soft black ORGANIC CLAY

Field Records (SPT)

15cm

15cm N

15cmSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

Lege

nd Soil Description


Dep

th (m

)



127737





Tel: 0114 309 494

354mm


M.s/Maga Engineering (Pvt) LtdRig EDECO

Clay Silt Sand

FD - Free Down

Made Ground

Client



Rotary


W - Water Sample



V - Vane Shear Test

Nishantha




WS-Wgrey Sample


pH - Chemical




Premadasa


C - Consolidation

Lakshitha







50

35 40


4010 20 30 70 908060

2515


1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

4

1

4

0

0

5

7

10.00

D9 SS 5 8 13 21

11.00

WS

12.00

D10 SS 7 10 15 25

13.00 WS

D11 SS 13.50 10 18 20 38

14.00

WS

15.00

D12 SS 12 20 22 42

16.00

WS

17.00

D13 SS 17.00 10 20 20 40

18.00

WS

19.00

D14 SS 19.00 10 16 16 32

20.00Logged By :



NE Drilled By:

RemarksSample Key / Test KeyCOMPELETELY WEATHERED ROCK

15 403520 25

Hard yellowish brown, offwhite slightly fine sandy silty clay with mica traces

COMPELETELY WEATHERED ROCK

Hard yellowish brown, gray silty clay slightly fine sand with mica traces

10.30


Very stiff yellowish brown, offwhite slightly fine sandy silty clay with mica traces




WS-Wgrey Sample


Very stiff yellowish brown, gray silty clay and slightly fine sand with mica traces and

rock fragments

O - Organic content





V - Vane Shear Test


B - Bulk Density






Silty SandLaterite Nodules

Fresh Rock

pH - Chemical

Nishantha

Sand


Premadasa

Organic Matter


Highly Weathered Rock

FD - Free Down

Made Ground

HB -Hammer Bounce


Clay


W - Water Sample

Lakshitha

N

15cm

70Soil Description

10515cm


905040 60 80

Client

25.20m Coordinates

Field Records (SPT)


2



127737

15cm



Tel: 0114 309 494

Sheet ofProject



0.30mRotary

Core DiameterEDECO3

13.02.2013


Elevation (m) 62256

54mm

10

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e76mm



Dep

th (m

)

Lege

nd

Casing Diameter

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

40

32

25

42

38

21

20.00

21.00

D15 SS 21.00 7 12 16 28

22.00

23.00

D16 SS 23.00 18 23 35 >50

24.00

WS

25.00 HB >50D17 SS

25.20

26.00

26.20

27.00

27.20

28.00

28.20

29.00

30.00Logged By :



NE Drilled By:



Very stiff gray, yellow, offwhite, silty clay with slightly fine sand with mica


Very dense yellowish brown, gray, offwhite fine clayey sand with mica traces





Tel: 0114 309 494


Date of Started 13.02.2013 Drilling Method Rotary

3 of 3Location Rajagiriya Rig EDECO Core Diameter 54mm Ground Water level 0.30m

Coordinates 127737Elevation (m) 62256Casing depth 25.20m


educ

ed

leve

l

Dep

th (m

)

Lege

nd Soil Description


Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype Field Records

(SPT)


10 20 30 40 50 60 70 80 90


15cm

15cm






W - Water Sample

HB -Hammer Bounce






FD - Free Down RQD-Rock Quality Designation (%) Cl- - Cloride Content

Clay Sand Organic Matter Silty Sand Highly Weathered Rock Fresh Rock

Made Ground

WS

ROCK LEVEL

Cr=98% RQD=0%

Cr=96% RQD=55%

RQD=62%

Slightly weathered Highly fractured BIOTITE GNEISS

Fresh highly fractured BIOTITE GNIESS

Fresh fractured BIOTITE GNEISS


Cr=100%

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

28

>50

>50

0.00

D1 DS 0.00

G.W.L

1.00 at

D2 SS 0.30 m 1.00

WS

2.00

D3 SS 2.00

WS

3.00

D4 SS 2.90

4.00 WS

D5 SS

5.00

WS

6.00

D6 SS 6.00 0 1 2 3

7.00 WS

7.20D7 SS 1 2 2 4

8.00

WS

9.00

D8 SS 2 3 5 8

10.00 WSLogged By :



NE Drilled By:

8.10


Soft black ORGANIC CLAY

Soft gray slightly fine sandy SILTY CLAY

Firm whitish gray fine to medium SANDY CLAY

FREE DOWN

FREE DOWN

FREE DOWN

Very soft brown., black medium to coarse sandy clay with few gravels

MADE GROUND

2515



4010 20 30 70 90806050

35 40





Premadasa


C - Consolidation

Lakshitha



UU-Unconsolidated Undrained WS-Wgrey Sample


pH - Chemical


CU - Consolidated Undrained Nishantha




Core DiameterRotary


W - Water Sample



V - Vane Shear Test

Client



Clay Silt Sand

FD - Free Down

Made Ground

254mm







Tel: 0114 309 494



106731

Lege

nd Soil Description


Dep

th (m

)

Sa.N

O.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

Ground level

Brown fine to medium clayey sand

Very soft medium to coarse sandy clay

Field Records (SPT)

15cm

15cm N

15cm

FREE DOWN

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

0

0

0

0

3

4

8

10.00

10.20D9 SS 5 5 6 11

11.00

WS

12.00

D10 SS 12.00 >50

13.00 WS

D11 SS HB >50

14.00 WS

14.20

15.00 CS

16.00 15.70CS

17.00 16.70CS

18.00 17.70

19.00

20.00Logged By :



NE Drilled By:

NO SAMPLE

Stiff gray, offwhite fine sandy clay with some mica traces

Very dense blackish gray fine sand with mica traces



5cm/50

ROCK LEVEL


Cr=73% RQD=0%

Cr=100% RQD=24%

Cr=100% RQD=80%

76mm



Dep

th (m

)

Lege

nd

Casing Diameter

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e

2

16.02.2013


Elevation (m) 27214

54mm

10

0.30mRotary

Core DiameterJoy

15cm



Tel: 0114 309 494

Sheet ofProject



Client

14.20 Coordinates

Field Records (SPT)


2



106731

905040 60 80

N

15cm

70Soil Description

10515cm


Clay


W - Water Sample

Lakshitha

FD - Free Down

Made Ground

HB -Hammer Bounce


pH - Chemical

Nishantha

Sand


Premadasa

Organic Matter



Fresh Rock


B - Bulk Density








V - Vane Shear Test


WS-Wgrey Sample


O - Organic content




Moderately weathered weathered highly fractured offwhite, black, BIOTITE

GNEISS

MODERATELY WEATHERED ROCKModeratly weathered weathered highly

fractured offwhite, black, BIOTITE GNEISS

MODERATELY WEATHERED ROCK

15 403520 25


Fresh highly fractured offwhite, black, BIOTITE GNEISS

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

>50

>50

11

0.00

D1 DS 0.00

1.00

D2 SS G.W.L 3 2 2 4

at

WS 0.80 m

2.00

D3 SS 2.00 2 3 5 8

WS

3.00

D4 SS 3.00 2 3 3 6

4.00 WS

4.20D5 SS 1 0 0 0

5.00

WS

6.00

D6 SS 1 1 0 1

7.00 WS

D7 SS 7.50 1 2 3 5

8.00

WS

9.00

D8 SS 2 3 2 5

10.00 WSLogged By :



NE Drilled By:

MADE GROUND

Very soft bacl ORGANIC CLAY

Soft light gray fine to medium SANDY CLAY

2515



4010 20 30 70 90806050

35 40





Thilakasiri


C - Consolidation

Lakshitha



UU-Unconsolidated Undrained WS-Wgrey Sample


pH - Chemical


CU - Consolidated Undrained Nishantha




Core DiameterRotary


W - Water Sample



V - Vane Shear Test

Client



Clay Silt Sand

FD - Free Down

Made Ground

354mm







Tel: 0114 309 494



145814

Lege

nd Soil Description


Dep

th (m

)

Sa.N

O.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype Field Records

(SPT)

15cm

15cm N

15cm

Loose brown slightly sub-rounded gravels with some coarse sand

Ground level

Very loose brown, slightl clayey fine to medium sand

Firm brown fine to medium sandy clay

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

4

8

6

0

1

5

5

10.00

D9 SS 10.50 3 7 15 22

11.00

WS

12.00

D10 SS 12.00 5 10 17 27

13.00 WS

D11 SS 15 30 >50

14.00

WS

15.00

D12 SS 30 35 >50

16.00

WS

17.00

D13 SS 50 HB >50

18.00

WS

19.00

D14 SS 35 HB >50

19.5020.00 CS

Logged By :SPT N - Natural Moisture Content


NE Drilled By:

Very stiff yellowish brown, gray, reddish brown fine to medium SANDY CLAY

15cm/50

25cm/50

NO SAMPLE

76mm



Very stiff yellowish brown, gray, offwhite fine to medium SANDY CLAY


Dep

th (m

)

Lege

nd

Casing Diameter

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e

3

31.01.2013


Elevation (m) 28950

54mm

10

0.80mRotary

Core DiameterEDECO

15cm



Tel: 0114 309 494

Sheet ofProject



Client

19.50m Coordinates

Field Records (SPT)


2



145814

30

905040 60 80


N

15cm

70Soil Description

10515cm


Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay







Nishantha


Thilakasiri

Organic Matter



Fresh Rock






B - Bulk Density



W - Water Sample

Very dense black offwhite slightly clayey fine to medium sand with mica traces

V - Vane Shear TestLakshitha

15 403520 25

WS-Wgrey Sample

Remarks

13.10

ROCK LEVEL


Same as next description

NO SAMPLE

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

27

50

50

>50

>50

12

20.00

CS

21.00

21.50

22.00 CS

22.50

23.00 CS

23.50

24.00

25.00

26.00

27.00

28.00

29.00

30.00Logged By :



NE Drilled By:


Slightly discolored highly fractured BIOTITE GNEISS

Cr=12.5%





Tel: 0114 309 494


Date of Started 31.01.2013 Drilling Method Rotary

3 of 3Location Rajagiriya Rig EDECO Core Diameter 54mm Ground Water level 0.80m



educ

ed

leve

l

Dep

th (m

)

Lege

nd Soil Description


Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype Field Records

(SPT)


10 20 30 40 50 60 70 80 90


15cm

15cm


: Ground Water Level observed inside the WS-Wgrey Sample SG -Specific Gravity Test UU-Unconsolidated Undrained W - Water Sample


G - Grain Size Analysis CU - Consolidated Undrained

O - Organic content



HB -Hammer Bounce


ThilakasiriCr - Core Recovery (%) SO4


Silt Gravel Laterite Nodules Completely Weathered Rock Highly Weathered Rock Fresh Rock


FD - Free Down

RQD=0%

Slightly discolored highly fractured BIOTITE GNEISS

Slightly discolored fractured BIOTITE GNEISS

Cr=74% RQD=48%

Cr=100% RQD=85%

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

0.00

D1 DS 0.00

1.00

D2 SS 1.00 4 4 7 11

WS G.W.L

2.00 at

D3 SS 1.20 m 3 3 3 6

WS

3.00

D4 SS 2.90

4.00 WS

D5 SS

5.00

WS

6.00

D6 SS

7.00 WS

D7 SS

8.00

WS

9.00

D8 SS 9.00 2 3 3 6

10.00 WSLogged By :



NE Drilled By:

7.30

Very soft ORGANIC CLAY

Very soft light gray fine to medium SANDY CLAY

Firm light gray fine to medium SANDY CLAY

FREE DOWN

FREE DOWN

FREE DOWN

FREE DOWN

Ground level

MADE GROUND

Stiff brown, offwhite slightly medium sub-rounded sandy clay with some medium

gravels

Firm brown, offwhite slightly medium sub-rounded sandy clay with some medium

gravels

Field Records (SPT)

15cm

15cm N

15cmSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

Lege

nd Soil Description


Dep

th (m

)



109535





Tel: 0114 309 494

454mm



Clay Silt Sand

FD - Free Down

Made Ground

Client



Rotary


W - Water Sample



V - Vane Shear Test

Nishantha




WS-Wgrey Sample


pH - Chemical




Premadasa


C - Consolidation

Lakshitha







6050

35


4010 20 30 70 9080

2515


1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

11

6

0

0

0

0

6

10.00

D9 SS 10.50 3 3 5 8

11.00

WS

12.00

D10 SS 12.00 5 8 12 20

13.00 WS

D11 SS 7 11 13 24

14.00

WS

15.00

D12 SS 15.00 9 13 17 30

16.00

WS

17.00

D13 SS 17.00 4 8 10 18

18.00

WS

19.00

D14 SS 19.00 30 35 HB >50

20.00Logged By :



NE Drilled By:

Firm offwhite yellowish brown, slightly SANDY CLAY

Very stiff yellowish brown, fine to medium sandy clay

COMPLETELY WEATHERED ROCK

Very stiff yellowish brown,gray fine to medium sandy clay


Very stiff pinkish gray, offwhite fine sandy clay slightly medium sand with mica traces

WS-Wgrey Sample

Remarks

15 403520 25




W - Water Sample






B - Bulk Density



Premadasa

Organic Matter



Fresh Rock






Nishantha

Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay



N

15cm

70Soil Description

10515cm


905040 60 80

Client

27.20m Coordinates

Field Records (SPT)


2



109535

15cm



Tel: 0114 309 494

Sheet ofProject



1.20mRotary

Core DiameterEDECO4

18.02.2013


Elevation (m) 58934

54mm

10

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

eDrilling Method

20.02.2013

Dep

th (m

)

Lege

nd

Casing Diameter 76mm



Hard yellowish brown, gray fine to coarse sandy clay with some gravels and mica

tracesCOMPLETELY WEATHERED ROCK

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

20

18

>50

30

24

8

20.00

21.00

D15 SS 21.00 HB >50

22.00

WS

23.00

D16 SS 35 HB >50

24.00

WS

25.00

D17 SS HB >50

26.00

WS

27.00

27.20

28.00

CS

29.00 28.70

CS

30.00Logged By :



NE Drilled By:

Slightly weathered, black, offwhite, fractured garnet BIOTITE GNEISS

Slightly weathered, black, offwhite, fractured garnet BIOTITE GNEISS

ROCK LEVEL

NO SAMPLE

NO SAMPLE


Very dense black, offwhite silty fine sand with mica traces




FD - Free Down




HB -Hammer Bounce




W - Water Sample




80 90


15cm

15cm

15cm N 30 35 40

Field Records (SPT)


10 20 30 40 50 60 70


Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype

Red

uced

le

vel

Dep

th (m

)

Lege

nd Soil Description

Ground Water level 1.20m27.20m

Casing Diameter 76mm

Rig EDECO Core Diameter 54mm109535

Elevation (m) 58934Casing depthDate of Started


18.02.2013 Drilling Method Rotary Coordinates

Location Rajagiriya




Tel: 0114 309 494


BH-09

3 of 4

Cr=67% RQD=8%

Cr=60% RQD=0%

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

>50

>50

>50

30.00

30.20CS

31.00

31.20

32.00 CS

32.20

33.00

34.00

35.00

36.00

37.00

38.00

39.00

40.00Logged By :



NE Drilled By:

Date of Started

Project




Tel: 0114 309 494


Soil Investigation at Rajagiriya Borehole No BH-09

18.02.2013 Drilling Method Rotary

3

Coordinates 109535Elevation (m) 58934Casing depth

of 4Core Diameter 54mm Ground Water level 1.20m

27.20mLocation Rajagiriya Rig EDECO


educ

ed

leve

l

Dep

th (m

)

Lege

nd Soil Description


Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype Field Records

(SPT)


10 20 30 40 50 60 70 80 90


15cm

15cm


: Ground Water Level observed inside the WS-Wgrey Sample SG -Specific Gravity Test UU-Unconsolidated Undrained W - Water Sample


G - Grain Size Analysis CU - Consolidated Undrained

O - Organic content



HB -Hammer Bounce




Silt Gravel Laterite Nodules Completely Weathered Rock Highly Weathered Rock Fresh Rock


FD - Free Down

RQD=77%


Fresh, black, offwhite, garnet BIOTITE GNEISS

Cr=100% RQD=15%


Fresh, black, offwhite, garnet BIOTITE GNEISS

Cr=100%

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

0.00

D1 DS 0.00

G.W.L

1.00 at

D2 SS 0.30 m 1.00 1 1 1 2

WS

2.00

D3 SS 2.00 1 0 0 0

WS

3.00

D4 SS 3.00 1 1 1 2

3.50

4.00 WS

D5 SS 2 2 4 6

5.00

WS

6.00

D6 SS 6.00 4 4 7 11

7.00 WS

7.30D7 SS 10 30 HB >50

8.00

WS

9.00

D8 SS HB >50

10.00 WSLogged By :



NE Drilled By:

Blackish yellow, fine to medium sand with angular to subangular fine to coarse gravel

with traces of mica


Brown fine to medium SANDY CLAY

Very soft gray, black CLAY

Very soft greenish gray, fine to medium SANDY CLAY

Ground level

Stiff reddish brown, yellowish brown, offwhite, fine to medium SANDY

LATERITIC CLAY

Very soft pale yellow, fine to coarse SANDY CLAY

Firm reddish brown, offwhite, fine to medium GRAVELLY LATERITIC CLAY

Field Records (SPT)

15cm

15cm N

15cmSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

Lege

nd Soil Description


Dep

th (m

)



144495





Tel: 0114 309 494

254mm


M.s/Maga Engineering (Pvt) LtdRig Chinese

Clay Silt Sand

FD - Free Down

Made Ground

Client



Rotary


W - Water Sample



V - Vane Shear Test

Nishantha




WS-Wgrey Sample


pH - Chemical




Disanayaka


C - Consolidation

Lakshitha







50

35 40


4010 20 30 70 908060

2515


1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

2

0

2

6

11

>50

>50

10.00

11.00

12.00

13.00

13.60

14.00

15.00

16.00

17.00

18.00

19.00

20.00Logged By :



NE Drilled By:

RQD=96%

10.10

11.60

12.60

Black, gray, highly discolored, highly fractured BIOTITE GNIESS




Cr=78% RQD=13%

Cr=100% RQD=100%

ROCK LEVEL

Cr=100%

Remarks

15 403520 25


V - Vane Shear TestB - Bulk Density



Where full 0.3m penetration has not been achieved the number of blows for the quoted penetration

Silt



Disanayaka

NishanthaW - Water Sample

Lakshitha


SS -SPT Sample

WS-Wgrey Sample

Organic Matter


Highly Weathered Rock Silty SandLaterite Nodules Completely Weathered Rock

Fresh Rock






Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay


N

15cm

70Soil Description

10515cm


905040 60 80

Client

10.10m Coordinates

Field Records (SPT)


2



144495

15cm



Tel: 0114 309 494

Sheet ofProject



0.30mRotary

Core DiameterChinese2

01.02.2013


Elevation (m) 98662

54mm

10

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e76mm



Dep

th (m

)

Lege

nd

Casing Diameter

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

0.00

D1 DS 0.00

G.W.L

1.00 at

D2 SS 0.15 m 1 0 1 1

WS

2.00

D3 SS 2 1 1 2

WS

3.00

D4 SS 1 0 0 0

4.00 WS

D5 SS 1 0 1 1

5.00

5.00WS

6.00

D6 SS 3 4 5 9

7.00 WS

D7 SS 7.50 5 6 9 15

8.00

WS

9.00

D8 SS 9.00 4 6 13 19

10.00 WSLogged By :



NE Drilled By:

2.10

FILL

Brown medim to coarse SANDY CLAY with some quartz gravels

Very soft ORGANIC CLAY with partly decomposed roots and debits

Stiff whitish yelllow medium to coarse SANDY CLAY with some quartz gravel

Very stiff whitish yelllow medium to coarse SANDY CLAY with some quartz gravel

Firm whitish yelllow medium to coarse SANDY CLAY with some quartz gravel

Ground level

Field Records (SPT)

15cm

15cm N

15cmSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

Lege

nd Soil Description


Dep

th (m

)



124841





Tel: 0114 309 494

354mm


M.s/Maga Engineering (Pvt) LtdRig Chinese

Clay Silt Sand

FD - Free Down

Made Ground

Client



Rotary


W - Water Sample



V - Vane Shear Test

Nishantha




WS-Wgrey Sample


pH - Chemical




Rathnayake


C - Consolidation

Lakshitha







50

35 40


4010 20 30 70 908060

2515


1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

1

2

0

1

9

15

19

10.00

D9 SS 4 5 7 12

11.00

WS

12.00

D10 SS 3 6 12 18

13.00 WS

D11 SS 13.50 2 5 10 15

14.00

WS

15.00

D12 SS 15.00 7 12 14 26

16.00

WS

17.00

D13 SS 5 12 23 3517.15

18.00

WS

19.00

D14 SS 19.00 HB >50

WS

20.00 19.8Logged By :



NE Drilled By:

11.30

Yellowish grey, fine to coarse sandy caly with some mica traces and some gravels

Very stiff yellowish brown, medium to coarse SANDY LATERITE CLAY

Very stiff yellowish brown, medium to coarse SANDY LATERITE CLAY

Stiff yellowish brown, medium to coarse SANDY LATERITE CLAY


ROCK LEVEL

(COMPLETELY WEATHERD ROCK)

WS-Wgrey Sample

Remarks

15 403520 25

(COMPLETELY WEATHERD ROCK)


V - Vane Shear Test







B - Bulk Density



Rathnayake

Organic Matter



Fresh Rock






Nishantha

Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay


W - Water Sample

Lakshitha

Blackish yellow fine to coarse sand with some mica traces

N

15cm

70Soil Description

10515cm


905040 60 80

Client

19.80 Coordinates

Field Records (SPT)


2



124841

15cm



Tel: 0114 309 494

Sheet ofProject



0.10mRotary

Core DiameterChinese3

25.01.2013


Elevation (m) 21285

54mm

10

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e76mm



Dep

th (m

)

Lege

nd

Casing Diameter

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

18

15

26

35

>50

12

20.00

21.00

20.80

22.00

21.80

23.00

23.00

24.00

25.00

26.00

27.00

28.00

29.00

30.00Logged By :



NE Drilled By:

RQD=92%

CS

CSBlack grey mottled black medium biotite

GNEISS, , Fracture Index==1 m-1Cr=100%

Cr=100% RQD=100%


Completely Weathered Rock Clay Sand Organic Matter Silty Sand Highly Weathered Rock Fresh Rock

Made GroundFD - Free Down RQD-Rock Quality Designation (%) Cl- - Cloride Content


RathnayakeCr - Core Recovery (%) SO4

2- - Sulphate ContentHB -Hammer Bounce




W - Water Sample




80 90


15cm

15cm

15cm N 30 35 40

Field Records (SPT)


10 20 30 40 50 60 70

Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype

Red

uced

le

vel

Dep

th (m

)

Lege

nd Soil Description

Date of Finished 27.01.2013 Casing Diameter 76mmDate of Started 25.01.2013 Drilling Method Rotary Coordinates 124841

Elevation (m) 21285Casing depth 19.80

of 3Location Rajagiriya Rig Chinese Core Diameter 54mm Ground Water level 0.10mClient M.s/Maga Engineering (Pvt) Ltd Sheet 3

Black grey mottled black medium biotite GNEISS, , Fracture Index=1 m-1 Cr=100% RQD=96%

Black grey mottled black medium biotite GNEISS, , Fracture Index==2 m-1





Tel: 0114 309 494

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

0.00

D1 DS 0.00

G.W.L

1.00 at

D2 SS 0.20 m 4 4 4 8

D3 DS

2.00

D4 SS 1 1 1 2

WS

3.00

D5 SS 1 1 1 2

4.00 WS

4.10D6 SS 1 1 1 2

5.00

WS

6.00

D7 SS 6.00 3 4 7 11

7.00 WS

D8 SS 7.50 3 5 8 13

8.00

WS

9.00

D9 SS 9.00 2 4 7 11

10.00 WSLogged By :



NE Drilled By:

15cmLe

gend Soil Description

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype

96028Casing depth 17.20mElevation (m) Coordinates 104112





Tel: 0114 309 494

3

Drilling Method54mm


M.s/Maga Engineering (Pvt) LtdRig Core Diameter

Clay Silt Sand

FD - Free Down

Made Ground

76mm06.02.2013

Sa.N

O.

Rotary


Client


05.02.2013Rajagiriya EDECO

Date of Finished


Casing Diameter

Dep

th (m

)

WS-Wgrey Sample

Ground level

1.80

Field Records (SPT)

15cm

15cm N

O - Organic contentB - Bulk Density




V - Vane Shear TestHB -Hammer Bounce Cr - Core Recovery (%)



pH - Chemical


Dhanushka


C - Consolidation

Lakshitha





Stiff yellowish brown, offwhite fine SANDY LATERITIC CLAY

NishanthaCU - Consolidated Undrained

the number of blows for the quoted penetration SS -SPT SampleD - Disturbed Sample

W - Water Sample

50

4025


4010 20 30 70 908060


Stiff offwhite, reddish brown, light yellow medium SANDY LATERITIC CLAY with

lateritic nodules

Stiff offwhite, reddish brown, coarse SANDY LATERITIC CLAY

MADE GROUND

Grayish brown, reddish brown. Medium to coarse sub-rounded gravels with coarse

sandy clay

Very soft ORGANIC CLAY with peat

Very soft gray, reddish brown, medium to coarse subrounded SANDY LATERITIC CLAY with some fine to medium gravels

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

8

2

2

2

11

13

11

10.00

D10 SS 3 4 7 11

11.00

WS

12.00

D11 SS 12.00 2 3 1 4

13.00 WS

D12 SS 13.50 4 8 11 19

14.00

WS

15.00

D13 SS 6 9 13 22

16.00

WS

17.00

D14 SS >5017.20

18.00 CS

19.00 18.70

CS

20.00Logged By :



NE Drilled By:

Remarks

WS-Wgrey Sample

15 403520 25

V - Vane Shear Test




Soft yellowish brown, offwhite fine fine SANDY LATERITIC CLAY

Very stiff yellowish brown, gray offwhite, fine sandy clay with mica traces






B - Bulk Density



Dhanushka

Organic Matter



Fresh Rock






Nishantha

Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay


W - Water Sample

Lakshitha


N

15cm

70Soil Description

10515cm


905040 60 80

Client

17.20m Coordinates

Field Records (SPT)


2



104112

15cm



Tel: 0114 309 494

Sheet ofProject



0.20mRotary

Core DiameterEDECO3

05.02.2013


Elevation (m) 96028

54mm

10

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e76mm



Dep

th (m

)

Lege

nd

Casing Diameter

(17.00m-17.20m) Sample changed to black offwhite slightly clayey fine to medium sand

with some gravels and mica traces

RQD=47%

Cr=93% RQD=60%

10cm/50ROCK LEVEL

Slightly weathered black offwhite, fractured fine to coarse grained garnet BIOTITE

GNEISS

Slightly weathered black offwhite, fractured fine to coarse grained garnet BIOTITE

GNEISSCr=80%

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

4

19

>50

22

11

20.00

20.20

21.00

22.00

23.00

24.00

25.00

26.00

27.00

28.00

29.00

30.00Logged By :



NE Drilled By:




FD - Free Down RQD-Rock Quality Designation (%) Cl- - Cloride Content DhanushkaCr - Core Recovery (%) SO4



W - Water Sample G - Grain Size Analysis CU - Consolidated Undrained


HB -Hammer Bounce




: Ground Water Level observed inside the WS-Wgrey Sample SG -Specific Gravity Test UU-Unconsolidated Undrained


80 90


15cm

15cm

15cm N 30 35 40

Field Records (SPT)


10 20 30 40 50 60 70

Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype

Red

uced

le

vel

Dep

th (m

)

Lege

nd Soil Description


0.20m


BH-12





Tel: 0114 309 494



Same as previous descriptionEND OF THE BOREHOLE AT 20.20 m

1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

0.00

D1 DS 0.00

1.00 G.W.L

D2 SS at 2 3 3 6

0.50 m

WS

2.00

D3 SS 2 2 5 6

WS

3.00

D4 SS 1 0 0 0

4.00 WS

D5 SS 1 0 0 0

5.00

WS

6.00

D6 SS 1 1 2 3

7.00 WS

D7 SS 12 15 22 37

8.00

WS

9.00

D8 SS 9.00 3 6 8 14

10.00 WSLogged By :



NE Drilled By:

Ground level

Field Records (SPT)

15cm

15cm N

15cm

Soil Description

Sa.N

O.

Date of Finished

Dep

th (m

)

Sa. C

ond

Red

uced

le

vel

Sa.T

ype


Dep

th (m

)

Drilling Method

Lege

nd






Tel: 0114 309 494

354mm



Clay Silt Sand

FD - Free Down

Made Ground

Client



Rotary


W - Water Sample



V - Vane Shear Test

Nishantha




WS-Wgrey Sample


pH - Chemical





Sumathipala


C - Consolidation

Lakshitha




Medium dense yellowish brown, offwhite silty clay with mica traces


the number of blows for the quoted penetration SS -SPT SampleD - Disturbed Sample

6050

352515


4010 20 30 70 9080


MADE GROUND

Dense reddish brown, brown, offwhite medium to coarse subrounded CLAYEY

SAND with fine to medium lateritic gravels

Loose brown, slightly clayey fine to medium sand

5.80


Soft lightly gray fine to medium SANDY CLAY

2.90

7.40

1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

6

6

0

0

3

37

14

10.00

D9 SS 10.50 5 10 13 23

11.00

WS

12.00

D10 SS 12.00 7 9 16 25

13.00 WS

D11 SS 13.50 6 11 13 24

14.00

WS

15.00

D12 SS 15.00 8 16 18 34

16.00

WS

17.00

D13 SS 17.00 7 10 12 22

18.00

WS

19.00

D14 SS 19.00 9 15 18 33

20.00Logged By :



NE Drilled By:


Medium dense brownish gray silty clay with mica traces


Dense brownish gray silty clay with mica traces

Medium dense yellowish brown, offwhite silty clay with mica traces


Dense yellowish brown, offwhite slightly fine sandy clay with mica traces

WS-Wgrey Sample

Remarks

15 403520 25



W - Water Sample






B - Bulk Density



Sumathipala

Organic Matter



Fresh Rock






Nishantha

Sand


FD - Free Down

Made Ground

HB -Hammer Bounce


Clay



N

15cm

70Soil Description

10515cm


905040 60 80

Client

23.20m Coordinates

Field Records (SPT)


2



15cm



Tel: 0114 309 494

Sheet ofProject



0.50mRotary

Core DiameterEDECO3

20.02.2013


Elevation (m)

54mm

10

RigRajagiriyaSa

.NO

.

Date of Finished

Dep

th (m

)

Sa. C

ond

Location

Red

uced

le

vel

Date of StartedSa

.Typ

e76mm




Dep

th (m

)

Lege

nd

Casing Diameter


Medium dense yellowish brown, offwhite silty clay with mica traces with slightly fine

sand


Medium dense gray, offwhite sandy clay with mica traces


1

1.5

2

2.5

3

3.5

4

4.5

1 1.5 2

25

33

22

34

24

23

20.00

WS

21.00

D15 SS 21.00 25 15 10 25

22.00

23.00

23.20

24.00 CS

24.20

25.00 CS

25.20

26.00 CS

26.20

27.00

28.00

29.00

30.00Logged By :



NE Drilled By:

Medium dense yellowish brown, black, fine to medium clayey sand with mica traces



Cr=80%

ROCK LEVEL


RQD=24%

Cr=87% RQD=18%

Cr=92% RQD=70%

Black, offwhite highly fractored slightly discolored BIOTITE GNEISS

Black, offwhite highly fractored slightly discolored BIOTITE GNEISS

Black, offwhite fractored BIOTITE GNEISS


Made Ground

WS

Clay Sand Organic Matter Silty Sand

FD - Free Down


SumathipalaCr - Core Recovery (%) SO4


HB -Hammer Bounce




W - Water Sample




80 90


15cm

15cm

15cm N 30 35 40

Field Records (SPT)


10 20 30 40 50 60 70


Dep

th (m

)

Sa. C

ond

Sa.N

O.

Sa.T

ype

Red

uced

le

vel

Dep

th (m

)

Lege

nd Soil Description

0.50m23.20m

Casing Diameter 76mmCasing depth


BH-13

20.02.2013 Drilling Method Rotary

3

CoordinatesElevation (m)Date of Started




Tel: 0114 309 494



1

1.5

2

2.5

3

3.5

4

4.5

1 1.2 1.4 1.6 1.8 2

25

soil report

Documents

unconfined compression cu

consolidated undrained uu

storied building complex

unconsolidated undrained ph

specific gravity test

atterberg limit test

vane shear test

gravelly clay layer