linear soils survey and recommendations 13/hen-… · 08/02/2019 · linear soils survey and...

LINEAR SOILS SURVEY AND RECOMMENDATIONS

PROJECT NO. HEN-2-281(043)048

PCN 21745

COUNTY Lamoure

US Highway 281 RP 48.830 to RP 49.000

PREPARED BY: Jared Loegering

NORTH DAKOTA DEPARTMENT OF TRANSPORTATION

MATERIALS AND RESEARCH DIVISION

March 2018

48

51

47

49

50

46

28 3230 3129 30.65649.707

Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics,CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GISUser Community

0 0.5 10.25 Miles

Valley City

Bismarck

Fargo

Devils Lake Grand ForksMinot

Linear Soils Survey and Recommendations

Project: HEN-2-281(043)048PCN: 21745Scope: New ReconstructionLength: 0.17 MilesLocation: 1 Mile S of Jct. ND 46³

US Highway 281

ND Highway 46

Table of Contents Summary of Soil Investigation ..................................................................................... 1 Summary of Soil Analysis ............................................................................................ 1

Soil Sample Distribution ........................................................................................... 2 Design Recommendations ........................................................................................... 2

Design Information .................................................................................................... 2 Plan Notes .................................................................................................................. 3

List of Figures

Figure 1 - Soil Sample Distribution .................................................................................. 2

Appendices Appendix A – Soil Classification and Frost Susceptibility Appendix B – Boring LocationsAppendix C – Summary of Soils Analysis Appendix D – Lab Results

Linear Soils Survey and Recommendations HEN-2-281(043)048 Page 1 Introduction Location: US Highway 281, 1 Mile S of Jct. ND 46 Reference Points: 48.830 to 49.000 Project Length: 0.17 Proposed Project Scope: New Construction Investigation Scope: Identified Truck Inspection Site Location

Summary of Soil Investigation The investigation included 3 borings to a depth of 5’. All three borings were taken at the toe of the existing inslope along the area of the proposed truck inspection site. Maps of the boring locations are shown in Appendix B. The lab results are included in Appendix D. Summary of Soil Analysis Two of the soil borings in this area are classified as sandy lean clays with an AASHTO classification of A-6. The third boring is classified as a silty sand with an AASHTO classification of A-2-4. The sandy lean clays have on average a maximum dry density of approximately 125 lb/ft3 and an optimum water content of approximately 10%. The in-place moistures of the sandy lean clays are on average 10% to 16% over optimum. The silty sand has on average a maximum dry density of 126.9 lb/ft3 and an optimum water content of 9.5%. The in-place moisture of the silty sand is on average 0% to 6% over optimum.

Linear Soils Survey and Recommendations HEN-2-281(043)048 Page 2

Soil Sample Distribution

Figure 1 - Soil Sample Distribution

Design Recommendations

Design Information

Compaction Method: T-180

Subgrade Prep: None

Subcut: None

Drainage: None

-

2.00

4.00

A-1 A-2 A-3 A-4 A-5 A-6 A-7-5 A-7-6

Nu

mb

er o

f S

amp

les

AASHTO Soil TypeGranular Materials Silt-Clay Materials

Linear Soils Survey and Recommendations HEN-2-281(043)048 Page 3

Plan Notes None

The recommendations in this report are based on the scope specified in the Introduction. If the scope of work, vertical profile or horizontal alignment is changed, in either the conceptual phase or the design phase, the Geotechnical Engineer must be notified as soon as possible to ensure that there is adequate geotechnical information addressing these areas.

APPENDIX A

SOIL CLASSIFICATION AND FROST SUSCEPTIBILITY

AASHTO Soil Classification System

Frost Susceptibility Index (Bases on US Army Corps of Engineers)

Frost Class

Frost Susceptibility Soil Type Percent Finer than 0.02 mm by weight %

F1 Negligible to Low • Gravely Soils 3 – 10 F2 Low to Medium • Gravely Soils

• Sands 10 – 20 3 – 15

F3 High • Gravelly Soils • Sands, except very

fine silty sands • Clays, PI > 12

Greater than 20 Greater than 15 ---

F4 Very High • All Silts • Very Fine Silty

Sands • Clays, PI > 12 • Varved Clays and

other fine-grained banded sediments

--- Greater than 15 --- ---

APPENDIX B

BORING LOCATIONS

!(

!(

!(

0 500250Feet

Ü

Legend!( Boring Locations Project Number: HEN-2-281(043)048

Highway 281

48+4134

48+4754

49+0000

APPENDIX C

SUMMARY OF SOILS ANALYSIS

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Dep

th (

ft)

Boreholes Equally Spaced (0 to 240 ft)

LEGEND

PROJECT NUMBER HEN-2-281(043)048

LOCATION Lamoure County

PCN 21745

ND

DO

T_

LIN

EA

RC

OLO

RF

EN

CE

_DE

PT

H -

201

712

19.G

DT

- 3

/15

/18

11:

15 -

F:\L

AB

\PR

OJE

CT

S\G

INT

\HE

N-2

-281

(04

3)0

48.G

PJ

NORTH DAKOTA DEPARTMENT OF TRANSPORATION300 AIRPORT ROADBISMARCK, ND 58504

MC < Opt 6<=MC<10%Over Opt

0<=MC<6%Over Opt

10<=MC<16%Over Opt

MC>16%Over Opt

Avg. In-PlaceMoisture Content

Low HighMarginalSwell Potential

Liquid Limit LL<50 50<=LL<60

>5%Over PL

0-5%Over PLMoisture Content

LL>=60

Below PL Non-Plastic

A-2

-4(0

) [S

M]

PI

= 0

0.0

Avg:13.5Opt:9.5

1 ft

5 ft

1 ft

2 ft

3 ft

4 ft

5 ft

889

LSS - 148+4134El. 0 ft

A-6

(8)

[CL

]

PI

= 1

9

36.4

Avg:21.0Opt:9.1

1 ft

5 ft

1 ft

2 ft

3 ft

4 ft

5 ft

890

LSS - 248+4754El. 0 ft

A-6

(5)

[CL

]

PI

= 1

5

32.2

Avg:21.7Opt:11.3

1 ft

5 ft

1 ft

2 ft

3 ft

4 ft

5 ft

891

LSS - 349+0000El. 0 ft

LSS

- 1

LSS

- 2

LSS

- 3

16.2

12.5

13.5

12.5

12.8

17.6

22.7

21.2

21.9

21.7

17.2

20.6

26.1

21.6

23.0

APPENDIX D

LAB RESULTS

75

80

85

90

95

100

105

110

115

120

125

130

135

140

145

0 10 20 30 40

Test Method

AASHTO T-180 Method A



Curves of 100% Saturationfor Specific Gravity Equal to:

2.80

2.70

2.60

DR

Y D

EN

SIT

Y,

pcf

WATER CONTENT, %

LSS - 1

LSS - 2

LSS - 3

BOREHOLE DEPTH

LSS - 1

LSS - 2

LSS - 3

BOREHOLE DEPTH

NP

36

32

NP

17

17

NP

19

15

126.9 PCF

124.5 PCF

125.0 PCF

9.5 %

9.1 %

11.3 %

AASHTO Classification USCS Description

SILTY SAND(SM)

SANDY LEAN CLAY(CL)

SANDY LEAN CLAY(CL)

1.0

1.0

1.0

PILL PL Optimum WC

MOISTURE-DENSITY RELATIONSHIP

A-2-4 (0)

A-6 (8)

A-6 (5)

Max DD

1.0

1.0

1.0


PCN 21745


CO

MP

AC

TIO

N (

MU

LTIP

LE C

UR

VE

S)

- 20

1712

19.G

DT

- 3

/15

/18

11:

16 -

F:\L

AB

\PR

OJE

CT

S\G

INT

\HE

N-2

-281

(04

3)04

8.G

PJ


0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100

0.0010.010.1110100

PI Cc

501/2HYDROMETER

USCS Classification

D60

U.S. SIEVE OPENING IN INCHES U.S. SIEVE NUMBERS

D100

9.5

9.5

25

AASHTO Classification

SM

CL

CL

NP

17

17

0.176

0.082

0.117

BOREHOLE DEPTH

BOREHOLE DEPTH

D30

0.082

0.007

0.01

D10 %Clay

11.9

26.8

22.9

%Gravel

0.2

0.5

1.7

%Sand

73.3

40.9

46.5

%Silt

14.7

31.7

28.8

NP

36

32

CuLL PL

NP

19

15

GRAIN SIZE DISTRIBUTION

COBBLESGRAVEL SAND

GRAIN SIZE IN MILLIMETERS

coarse fine

LSS - 1

LSS - 2

LSS - 3

coarseSILT OR CLAY

finemedium

1403 4 20 406 601.5 8 143/4 3/8

PE

RC

EN

T F

INE

R B

Y W

EIG

HT

LSS - 1

LSS - 2

LSS - 3

3 100

24 16 30

1 2006 10

1.0

1.0

1.0

1.0

1.0

1.0

A-2-4 (0)

A-6 (8)

A-6 (5)


PCN 21745


GR

AIN

SIZ

E -

201

712

19.G

DT

- 3

/15

/18

11:

16 -

F:\L

AB

\PR

OJE

CT

S\G

INT

\HE

N-2

-281

(043

)048

.GP

J


LSS - 1 1.0 NP NP NP 9.5 27 A-2-4 (0) SM 16.2 13.5

LSS - 1 2.0 12.5 13.5

LSS - 1 3.0 13.5 13.5

LSS - 1 4.0 12.5 13.5

LSS - 1 5.0 12.8 13.5

LSS - 2 1.0 36 17 19 9.5 59 A-6 (8) CL 17.6 21.0

LSS - 2 2.0 22.7 21.0

LSS - 2 3.0 21.2 21.0

LSS - 2 4.0 21.9 21.0

LSS - 2 5.0 21.7 21.0

LSS - 3 1.0 32 17 15 25 52 A-6 (5) CL 17.2 21.7

LSS - 3 2.0 20.6 21.7

LSS - 3 3.0 26.1 21.7

LSS - 3 4.0 21.6 21.7

LSS - 3 5.0 23.0 21.7

SUMMARY OF LABORATORY RESULTSPAGE 1 OF 1

VoidRatioDepth Liquid

LimitPlasticLimit

PlasticityIndex

MaximumSize(mm)

%<#200Sieve

AASHTOClassification

Satur-ation(%)

DryDensity

(pcf)

USCSClass-

ificationBorehole

Avg.Water

Content(%)

WaterContent

(%)


PCN 21745


LAB

SU

MM

AR

Y -

201

712

19.G

DT

- 3

/15/

18 1

1:1

5 -

F:\L

AB

\PR

OJE

CT

S\G

INT

\HE

N-2

-281

(04

3)04

8.G

PJ


linear soils survey and recommendations 13/hen-… · 08/02/2019 · linear soils survey and...

Documents