Overview and basic of constructing metro station

1. AMIT KUMAR 1303200018
ANIMESH RANJAN 1303200023

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3. COST OF PROJECT(App) INR 1435 CRORES
COMPLETION
PERIOD(Expected)
42 MONTHS
TENDER SECURITY AMOUNT INR 14.35 CRORES
TENDERING AGENCY DMRC
TENDER GIVEN TO L&T
Quoted Price & Final Price 1265 CRORES

4. PROPOSED ROUTE MAP FOR CC-27

6. BORE
HOLE
61
BORE
HOLE
35

8. • VASANT VIHAR-HARD ROCK STRATA (BOTTOM-UP CONSTRUCTION APPROACH)
• HAUZ KHAS - SOFT SOIL STRATA(TOP-BOTTOM CONSTRUCTION APPROACH)

9. TOP VIEW – VASANT VIHAR
METHOD OF CONSTRUCTION- BOTTOM UP CONSTRUCTION
EAST
SIDE WEST SIDE

10. ROOF
SLAB
CONCOURSE
SLAB
BASE
SLAB
1
2
3
4
5
6
7
8
1 BLOCK WORK
2 UPE(UNDER PLATFORM EXHAUST)
3 OTE(OVER TRACK EXHAUST)
4 PLATFORM SLAB
5 FRESH AIR DUCT(ROOF SLAB)
6 SCUPPER DRAIN(BEHIND BW)
7 FALSE CEILING BELOW
CONCOURSE
8 COLUMN
9 RETAINING WALL
CROSS SECTIONAL VIEW VASANT VIHAR
9

11. 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)
CONCOURSE
SLAB
ROOF
SLAB
BLOCK WORK IN
FRONT OF
RETAINING WALL
RETAINING
WALL
INITIAL LAYER OF BLOCK
WORK

12. BASE
SLAB
UPE
CUTOUT
PLATFORM
SLAB
UNDER
PLATFROM
EXHAUST
(UNDER PLATFROM EXHAUST ) are basically cut outs provided below the platform slab

14. OTE LIFTING

15. ROOF SLAB

18. Area-33,706 sqm

19. Area- 15,533.69sqm

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HEAD ATTACHMENT
FOR BREAKER

24.  Shot Creting is done according to IS 9012:1978(reaffirmed 2002)
 Mix- 1:3 To 1:5 is used depending upon surface . W/c is kept at .30-.35
 Plasticizer -6% wt of cement( Glenium sky 777)
 Operating temp- 5deg to 30deg Celsius
Mesh Dia- 4mm
Mesh overlap length- 300mm
Min area for applying-300mm*300mm

25. Mechanism for Dry- Mix shot creting

26. -M40 Grade Concrete was used
-Reinforcement conforming to FE500D shall be used on site.
-Water Stops –PVC water stop will be used to arrest the water leakage (at construction joints)
-Binding wire used for binding reinforcement has a core dia of 1.25mm
-Formwork ply 12mm thick coated with Formwork oil for easy removal of formwork
-Cover blocks should be used depending on clearance that needs to be provided to the
reinforcement(50mm Base slab)
-Vibrator of 60mm Dia 4nos.

27. Earth CompactorConcreting on site
Proper vibration should be provided in
order to avoid cold joints

28. • AFTER THE FINAL SET HAS TAKEN PLACE WET HESSIAN CLOTH SHALL BE PLACED AND COVERED BY POLYTHENE SHEET.
• THE HESSIAN CLOTH SHALL BE KEPT PERMANENTLY DAMP
• AFTER 24HOURS HESSIAN CLOTH AND THE POLYTHENE SHEET SHALL BE REMOVED AND THE AREA WOULD BE
• PONDED WITH WATER .
• FOR VERTICAL CURING THE HESSIAN CLOTH ALONG WITH POLYTHENE SHEET SHALL SECURE THE SURFACE FOR AT
LEASDAYS BEFORE
• NEXT VERTICAL POURING BEGINS. THE HESSIAN CLOTH SHOULD BE DAMP ALL THE TIME.

29. Concrtete-M40
5.25 m below roof level
Thickness- 550mm
Formwork & scaffolding for Concourse
slab

30. Sealing Of construction Joints
on roof slab
Cut Outs of the roof Slab( Satellite view)
Design Mix M-40
Thickness-1.8m
Roof level

31. MATERIAL QUANTIY(KG) TYPE
CEMENT 380 ULTRA TECH(OPC 53
GRADE)
FLYASH 80 Ashtech:IS3812(NTPC
BADARPUR)
AGGREGATE(10mm) 481 Kotpulti
AGGREGATE(20mm) 666 Kotpulti
RIVER SAND 677 Yamuna Nagar
W/C RATIO .35
ADMIXTURE @ .85% 3.91 Glenium
147,Suretec(BASF)
W/P
CAMPOunds@1%
4.6 MasterPel 760(BASF)
WATER 161 R.O Water at Batching
Plant
Following admixture were used
Masterglenium 147 provides
 Extended workability
 Providing the ultimate high strength, especially ready.
Application
Add to the mixture 80% -90% of the calculated water for the
concrete mix and then, with the remaining water
masterglenium 147 must be added to the mixture,
Water Proofing Campound used-
Masterpel 760
 Provides resistance to water penetration either under
hydrostatic pressure or capillary absorption.
 Imparts integral water tightness to structures.
Application
MasterPel 760 is a ready-to-use powder which is dispensed into
the concrete together with the cement.
M-40 has been used for 3 slabs and retaining walls

32. MATERIAL
QUANTIY(KG) TYPE
CEMENT 410 ULTRA TECH(OPC 53
GRADE)
MICRO SILICA 22 TAM CEM
AGGREGATE(10m
m)
457 Kotpulti
AGGREGATE(20m
m)
686 Kotpulti
RIVER SAND 765 Yamuna Nagar
W/C RATIO .37
ADMIXTURE @
.85%
2.16 Glenium sky 777
WATER 151 R.O Water at Batching
Plant
M 50 was used for concreting of columns
MasterGlenium SKY 8777
is the super plasticizer based on second generation
polycarboxylic ether polymers, developed using nano-
technology. The product has been primarily developed for
applications in high performance ready-mix concrete to
facilitate
 Capability of delivering high quality concrete at any
time to the job site in place.
Tam Cem
TamCem Micro Silica is composed of silicon dioxide
(5i02).Collected from silicon metal and ferrosilicon.
TamCem Micro Silica will react with the Calcium
Hydroxide from the cement, which will form more of the
Calcium Silicate hydrate, increasing the strength of the
concrete.

33. Volume-6cum but loaded up to 5-5.5cum.
Rotations –Depend upon distance and Mix
BOOM PLACER
Concrete Bucket Vol 1-1.2cum
CONCRETING THROUGH PIPES

34. Bulged Concrete – Bulging in concrete takes place due to displacement of
formwork.
Surface preparation: The bulged area on concrete surface shall be hacked with
chisel to required line, level. All dirt, dust shall be cleaned with brush and water.
Repairing: Hacked area will be patched up with cement: sand mortar of proportion
1:4. On the completion of patch up work, the exposed area shall be thoroughly
cured.
Grout Loss
Exposed aggregate surface created by exit of cement slurry/grout mortar from
the gaps of formwork due to excessive vibration, unsealed joint of formwork
during pouring of concrete.
Repair
-The concrete surface is cleaned and free from dust/oil/grease etc by using
broom or wire mesh by scrubbing vigorously.
-After removal of loose particles surface is washed with water.
-Patch-up is done at cleaned surface with non-shrink Grout conbextra GP2

35. IS DUE SEGREGATION OF AGGREGATES AND MORTAR INTO THE
CONCRETE. HONEYCOMB CREATES IN STRUCTURES DUE TO MAINLY
IMPROPER COMPACTION IN TERMS OF EXCESSIVE/INSUFFICIENT
VIBRATION AT THE TIME OF PLACING.
Minor Honey Combing
Major Honeycombing
Repairing Involves-
The loose aggregate that are exposed shall be removed by gently
tapping on it. After removal of all loose aggregate, dust, dirt etc.
by wire/Soft brush then surface will be cleaned with Water.
Patchup is done by using conbextra GP2/Rendroc which is mixed
with cement and then the paste is applied.

36. 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)

37. A HIGHLY ELASTIC, SOLVENT FREE, ULTRA-FAST CURING, SPRAY APPLIED POLYURETHANE COATING AND IT IS
USED IN WATERPROOFING APPLICATIONS. MASTER SEAL M800 IS A SOLVENT FREE, TWO COMPONENT
SUBSTANCE. IT IS A HIGHLY REACTIVE TWO COMPONENT MIXTURE USED FOR WATERPROOFING IN
TUNNELING AND CUT & COVER STATIONS
USES-
WATERPROOFING COMPOUND WITH A SETTING TIME OF 2-3SECONDS
STEP WISE PROCESS FOR WATERPROOFING.
-SURFACE CONDITIONS
THE RCC SURFACE SHALL BE DRY BEFORE WATERPROOFING.
ANY INGRESS FOR WATER SEEPAGE SHALL BE IDENTIFIED AND TREATED.
CONSTRUCTION JOINT SHALL BE FILLED WITH HIGH PERFORMANCE WATER STOP GROUT OF CRYSTALLINE
GROWTH.

38. •
MIXING OF A & B
-Thin coat of mixed primer (RESIN + HARDNER) on the surface shall be
mechanically & uniformly applied, ensuring continuous film soon after surface
preparation is complete.
-Moisture content in the substrate shall be less than 5 %.
-The drying period of primer depends on the ambient temperature and relative
humidity.

39. Checking moisture before application
of primer.
BASF AGGREGATES
BASF AGGREGATES are sprinkled over the primer layer
immediately after application of the primer. Aggregates
help in roughening the surface of primer for proper
bonding between the primer layer and the waterproofing
membrane layer.

40. Application of the water
proofing Layer with 2
component gun
Special 2 Component
gun used for applying
waterproofing
campound
-MasterSeal M800 is available with the Part A
coloured white and the Part B colored black.
-This results in a uniform grey colour of the
sprayed material thus giving the sprayer a visual
control of the quality of the mixing, and machine
faults become immediately obvious. If the
membrane colour changes, stop spraying and
check machine .
-MasterSeal M800 is normally applied at 1.5–
2.0kg/SQM this corresponds to a thickness of
1.5–2.0mm.
Ponding test

42. THANK
YOU!!!