A PROJECT REPORT ON DMRC WITH ALL THE STATIONS AND UNDERGROUND STATIONS.

1. INDUSTRIAL TRAINING
REPORT
COMPANY NAME : DELHI METRO RAIL CORPORATION LIMITED.
DURATION : 18, May 2016 to 21, June 2016
NAME : DEEPAK KUMAR
ROLL NUMBER : 1301011044
DEPARTMENT OF CIVIL ENGINEERING
DIT UNIVERSITY

2. Project Name-Design and construction of tunnel &
underground metro stations from Janakpuri West to
Botanical Garden(CC-32) and (CC-34)
Client DMRC
Location Delhi
Contract Type Design and construction basis.
Contractor HCC-Samsung JV (Share 50 : 50) and HCC is leader
Completion period 46 months (18 Feb. 2013 ~ 01 Dec. 2016)
Contract Value 865.98 Cr. (A = 812.04, B = 41.18, C = 12.76)
Scope of work Design and construction of
 Twin tunnel between ch. 830.912 and 4591.63 by shield TBM. (4.363
KM Each)
 0.113 km and 0.158KM long Crossovers on either side of Janakpuri
station by C/C Method.
 U/G Stations at Janakpuri West, Dabri Mor and Dashrathpuri
including architectural finishing of stations.
 Interchange facilities between old and new Metro station
at Janakpuri.

3. SITE LOCATION

4. SITE MAP
1. Site map of CC32
2. SITE MAP OF CC33

5. SAFETY INDUCTION
In safety induction safety engineer told us about the use of safety equipment and PPE (Personal
Protective Equipment) at construction site.
PPE(Personal Protective Equipment)
 Safety Helmet
 Safety shoes
 Safety Gloves
 Safety Jacket
 Safety Glasses

6. Bottom Up construction Method(JANAKPURI
STATION)
Bottom up construction involves
 Excavation & Soil
Stabilization
 Construction of Base
slab, Concourse slab
& Roof slab
Construction of Columns
and Retaining wall.
 Waterproofing of
structure
 Filling Operations

7. TUNNEL OVERVIEW
KEY POINTS ABOUT TUNNEL:-
 Tunnels are constructed with the help of TBM (tunnel Boring Machine)
 The type of tunnel is “twin tunnel”.
 Inner diameter of tunnel is 5.8m
 Outer diameter is 6.5m
 There are 6 segment key in one ring of thickness 275mm and length 1.4m
 A cross passage is provided after every 200 rings for emergency exit.
 The lowermost of the tunnel is 20m below the ground surface.

8. TBM (Tunnel Boring Machine)
A tunnel Boring machine also known as “mole“, is a machine used to excavate tunnels with a circular cross section through
a variety of soil and rock strata. They can bore through anything from hard rock to sand. Tunnel diameter can range from a
meter (done with micro-TBM) to 19.25 meter to date.
Tunnel boring machine are used as an alternative to drilling and blasting methods in rock and conventional “hand mining “in
soil. TBM have the advantages of limiting the disturbance to the surrounding ground and produced a smooth tunnel wall.
The major disadvantage is the upfront cost. TBMs are expensive to construct, and can be difficult to transport. However, as
modern tunnels become longer, the cost of tunnel boring machines versus drill and blast is actually less.

9. WATER PROOFING
Chemicals used for Waterproofing
-For Priming Purpose
Master Seal M2525(Provided In two component A & B)
-Waterproofing Layer
Master Seal M800(Provided In two component A & B)
Master Seal M2525-Master Emaco 2525 is a solvent free, high-performance,
versatile epoxy binder that can be used to produce a range of epoxy resin based
mortars.
Several application stages:
 Surface preparation
 Pre-Application condition
 Preparation for Primer coat
 Spraying of MasterSeal M 800 membrane
 Surface Test

10. BACKFILLING
 The backfill material used shall be suitable earth / fine sand
complying with the required specification.
 Compaction of soil layer is done using rammer, plate compactor
and manual compaction will be done. Special care is taken
during the the compaction such that utilities are not damaged
during the compaction.
 Dumping, spreading and compaction of soil are done in layer of
@ 200 mm compacted thicknesses until the desired compaction
level is achieved.
 The soil is compacted till 95% compaction is achieved for each
layer and testing requirement shall be as per criteria specified.

11. BLOCK
WORKS
Dimension of Block– 400*200*200
Mortar-Cement sand mortar with ratio 1:4
Block Strength- 7.5 N/mm2
MIX –M15
Thickness of the bond-10mm
Joint Type-Basic English Bond(1 block thick)
BLOCK WORK IN
FRONT OF
RETAINING WALL
CONCOURSE
SLAB
ROOF SLAB
INITIAL LAYER OF BLOCK
WORK
RETAINING WALL

12. METHOD FOR CONCRETING
 Placing of concrete
 Compaction of concrete
 Curing of concrete
Various methods involves in concrete work

13. REBARING
Mostly HILTI chemical are used for rebaring
 Steps involved:-
 Drilling in the existing structure as per drawing
 Cleaning of holes by ELE blower
 Filling of chemical in well cleaned holes
 Then inserting bars slowly inside the holes
Rebaring is the method of insertion of steel bars when:-
•There is change in design or there is some extension of present structure.
•When steel rod as per has been not installed and to install the same rebaring is used.

14. QUALITY ASSURANCE & QUALITY CONTROL
 TESTS ON CEMENT
 TESTS ON AGGREGATES
 WATER ABSORPTION
 TESTS ON CONCRETE

15. CONCLUSION
It was a wonderful learning experience at Delhi Metro Rail Corporation Ltd.
for 5 weeks at CC32(UG-3) and CC34(UG-5). I gained a lot of insight
regarding several aspect of site. I was given exposure in almost all the
departments at the site. The friendly welcome from all the employees is
appreciating, sharing their experience and
giving their peace of wisdom which they have gained in long journey of work.
I am very much thankful for the wonderful accommodation facility from
DMRC. I hope this experience will surely help me in my future and also in
shaping my career.

16. THANKYOU