delhi-agra road project

DELHI-AGRA ROAD PROJECTby L & T Pvt. Ltd.

Intership Présentation by:

Sachin KumarRoll no.:111000129

PROJECT:

Project Details:

PROJECT TITLE DELHI-AGRA ROAD PROJECT

CUSTOMERM/S RELIANCE

INFRASTRUCTURE LTD.

CONSULTANTSAI/ FEEDBACK

CONTRACTORLARSEN & TOUBRO LTD

CONTRACT AGREEMENT

DATE

21/08/2012

CONTRACT VALUE

Rs.2040 cr

CONTRACT DURATION

27 MONTHS

PROJECT START DATE

01/10/2012

Kosi Plant:

1. QA/QC department

2. Highway department

3. Structure department

4. Planning department

5. Safety department (deals with the safety of

staff i.e. proper shoes, helmet, jacket, etc)

6. Store (provides tools, diesel and material)

7. Account department (that maintain the

account)Also there are 1 HOT MIX PLANT, 2 BATCHING PLANT AND 1 WET MIX PLANT

HOT MIX PLANT

BATCHING PLANT 1

BATCHING PLANT 2

WET MIX PLANT

Also all field work is done on chainage noted on curb

QUALITY ASSURANCE AND QUALITY CONTROL DEPARTMENT

QA/QC deals with the all test of minerals which

are using in construction at the site i.e. soil,

aggregate, cement, sand etc and check their

quality also because quality is major pillar of

strength and serviceability after which site

means highway construction comes in which

different layers of the crust spreaded over each

other so that distribution of load should be

uniform , this part comes under Highway

department

1 2 3

4 5 6 6

1. Moisture content and Density of soil

2. Free swell index

3. Grain size analysis

4. Compressive strength of concrete

cubes

5. Marshall test of DBM ( Dense

bituminous concrete )

Test Going On:

MOISTURE CONTENT AND DENSITY OF SOIL:

This test is conducted on the soil to calculate its

moisture content and dry density, so that, the

control on settlement of layer can be done

Rammer

Mould

Sample

This test is done for getting the failure of soil in

condition arises in which water get stagnated for long

period of time and settlement occurs in the layer.

Kerosene

water

Sample

Sample

FREE SWELL INDEX:

GRAIN SIZE ANALYSIS:

This test is done to found the percentage of gravel, sand , silt and clay in soil sample. Gravel (75mm - 4.75mm), sand (4.75mm – 0.075mm ) and silt & clay (0.075mm passing)

PROCEDURE:

1. Take soil sample and wash it to remove dust

2. Sieve it with 0.075mm sieve

3. Dry the sand and weight it W gm

4. Do sieve analysis

I.S. SIEVE WT. RETAINED

(gm)W1

% RETAINEDW1/W*100

CUMMULATIVE %AGE RETAINED

(A)

CUMMULATIVE %AGE PASSING(100-A)%

100mm

75mm

50mm

19mm

10mm

4.75mm

2.36mm

0.425mm

0.075mm

pan

COMPRESSIVE STRENGTH OF CONCRETE CUBES:

This test is conducted to check the compressive strength of concrete cube after 3rd day, 7th day and 28th day of casting

PROCEDURE:

1. Cast the cube of 150mm*150mm*150mm

dimension mould by using fresh concrete which

is mixed according to design.

2. Remove the cubes from mould after 24 hours

and put it in water tank for curing

3. Take out the cubes after 3rd day , 7th day and

28th day of casting

4. Put the cube immediately in the machine and

applied the load , record the loadat failure ,L

Compression machine

Cubes to be tested

Curing Tank

MARSHALL TEST OF DBM ( DENSE BITUMINOUS CONCRETE )

This test is done to calculate the compressive strength

of DBM by marshall stability apparatus

Sample

HIGHWAY DEPARTMENT

Highway department deals with all the

construction related to the road that can be

embankment and crust construction. Before

cutting or excavating the land , the most

important part is to know the reduced level of

land where we have to start working.

Reduced level:

Step 1: Height of instrument (H.I.)= back sight(B.S.)+ temporary bench mark (T.B.M.)

Step 2: Reduced level (R.L.) = H.I. – I.S.

EMBANKMENT:

After acquaintance of land , process of clearing and grubbing is done i.e. cutting of tree and root removal from land. Then, the process of embankment filling by soil works in which we calculate reduced level of land at 8 points and then, average it, A. Let crust thickness be C , then , embankment thickness, E comes to be

E=A-C

After calculating E, the numbers of soil layer, N in embankment is calculated by taking each layer of 200 mm thickness such that each layer can be compacted tightly as

N=E/200

CRUST:

1 2

43

After settling the layer by roller (fig.17), there is test conducted under the supervision of costumer for calculating:

1.Wet density2.Moisture content3.Degree of compaction

STRUCTURE DEPARTMENT

This department deals with the construction

of all the structures related to road i.e.

1.Flyover

2.Railway over bridges

3.Pedestal under pass

4.Vehicular under pass

5

8

6

7

PLANNING DEPARTMENT

Planning department plays a major role in controlling all the

activities which are related to the project. This can be usage

of material, machines, manpower each and every thing related

to project always pass through this department. The five

major things which I had learned in it :

1.Drawings

2.Daily Progress Report

3.Bar bending Schedule

4.Strip Chart

1. Drawings: All the drawings of pavements,

culverts, pedestal under pass, vehicular under pass and

flyover.

2. Daily progress report: This report consist an excel chart which tells about all the daily work to be completed and how much work completed. This chart forwards to heads so that they can easily examine the project progress easily.

3. Bar bending schedule: This consists of the information about bars shape , size and dimensions that are used in construction.

4. Strip chart: This chart is representation of road on an excel file which tell us about the section progress of road

CONCLUSION

As day by day number traffic volume is

increasing ,so , this road is widening which is very

necessary because it decrease the rush and

accidental chances on road. Also from all the staff

of L&T ltd. I learned that doing work with proper

dedication, responsibility and honesty makes the

person successful.

delhi-agra road project

Engineering

numbers of soil layer

soil sample

wet mix plant

hot mix plant

safety department deals

settlement of layer

test of minerals whichare

level of land