Diversion of Seri Nallah away from Atal Tunnel, Rohtang, Himachal Pradesh.

Amount

GROUP-A: SURFACE WORKS (TREATMENT OF SERI NALLAH BED BY GEOMEMBARNE & GEOTEXTILE WITH BOULDER FILLED GABION MATTRESS AND/OR GROUT FILLED MATTRESSESS, DRAINAGE TUNNEL PORTAL WORKS, TRENCH WEIR, PRECAST CONCRETE PIPE WATER DIVERSION SYSTEM AND OTHER SURFACE WORKS).

Dewatering During Construction

Dewatering of Surface Construction Sites including supply, installation and removal of pumping equipment from the site

Surface Excavation

Geomembarne & Geotextile Treatment Works

Common excavation

Rock excavation

Drainage Tunnel Portal Works

Common excavation

Rock excavation

Trench Weir Works

Common excavation

Rock excavation

Precast Concrete Pipe Works

Common excavation

Rock excavation

Loose Ripping

Minor excavation

Removal of material arising from overbreak accepted due to geological conditions.

Rock stabilization and Supports

Drainage Tunnel Portal Works

Rock Anchors 25 mm dia

- Length upto 3.0 m

Rock Anchor testing

- Rock Anchor 25 mm dia

Mesh reinforcement

- Welded wiremesh

Shotcrete

Plain Shotcrete

Cement variation in shotcrete

Superplasticiser

Backfill

Compacted backfill

Random backfill

Drilling, Grouting and Pressure Relief Holes

Drilling of exploratory holes in drainage tunnels

- Diamond Core Drilling of Px/Hx/Nx size (preferably Nx size) with triple core barrel drilling machine.

Water pressure testing - simple water test

Grouting materials

- Cement

- Admixtures

Concrete

Plain Cement Concrete

Geomembarne & Geotextile Treatment Works

- M20/A40 grade for side trench for geomembrane & geotextile anchoring ,etc.

- M20/A20 grade for leveling, side trench for geomembrane & geotextile anchoring ,etc.

Trench Weir Works

- M20/A20 grade for leveling, ,etc.

- M20/A20 grade for gravity walls, ,etc.

- M20/A40 grade for C.C blocks

Precast Concrete Pipe Works

- M20/A20 grade for leveling,etc.

Reinforced Cement Concrete

Drainage Tunnel Portal Works

- M35 /A20 grade in drainage tunnel portal , etc

Trench Weir Works

- M35/A20 grade in Trench weir, Intake structure, side walls etc.

Precast Concrete Pipe Works

-M30/A20 grade for drop/collection well, outlet spill channel etc.

M35/A20 grade second stage concrete in Blockouts

M15/A40 Backfill concrete

Cement Variation in Concrete

Admixtures for Concrete

- Air-entraining agent

- Superplasticiser

Formwork

Class F1

Class F2

Class F3

Class F1C

Class F2C

Class F3C

Reinforcing Steel

Deformed Reinforcing Bars - Grade Fe 500

Joints in concrete structures

PVC Water Stop

- 230 mm wide

Joint Sealing Compound (Asphalt Seal)

Joint Filler ( 24mm thick sheets)

Bituminous Coating

Joint Sealant (Including primer)

Metalworks

Railing (GI Pipe), 40 mm dia

Climbing irons

Erection hooks

Cast Iron air vent pipe (100 mm dia.)

Water tight covers and frames

Structural steel work

Supply & erection of steel roof truss.

CGI roof sheet 1mm thick

Miscellaneous and Ancillary Works

Precast Concrete Manhole Cover (clear opening 600 mm dia.)

Precast concrete slab ( M25/A20 )

Providing and laying Non Pressure NP-2 class (Light duty) 1.4 m dia. R.C.C. pipes conforming to IS 458, including collars/spigot jointed with rubber ring chords and profile gaskets conforming to type 2 of IS 5382 including testing of joints etc.

Rolling Shutter Door 2.5m (w) x 3.5m (H)

Nallah Bed and Slope Protection

Wire crates

- Wire crates

- Boulder filling in wire crates, etc.

Random rubble masonry

Wet R R Masonary

Preparation of site/ bed for Geomembrane and Geotextile/ Grout Filled Mattressess

Preparation of site/ bed by Levelling and compaction

Geomembrane and Geotextile

Laying of geotextile including cost of supply, storage and transportation upto site as per specification.

Laying of geomembrane including cost of supply, storage and transportation upto site as per specification.

Mechanically Woven Double-Twisted Hexagonal Gabion (Zn + Polymer coated)

Supply of mechanically woven double twisted hexagonal gabions (Zn + Polymer coated) of size 3mx2mx0.5m with two diaphragms having mesh opening 60mm x 80 mm, mesh wire diameter 2.2/3.2 mm (ID/OD), edge/ selvedge wire diameter 2.7/3.7mm and lacing wire diameter 2.2/3.2mm conforming to is:16014-2012 and as per technical specification.

Supply and placing boulders of around 20 kg to 40 kg in weight and 150 mm to 300 mm in size in gabion box including cost of supply of lacing wire/ rings for tying, cost of tying the lid of gabions with lacing wire/ rings as per the specification.

Grout Filled Mattresses

Description of Work / Item(s)

Amount

GROUP-B : UNDERGROUND WORKS (DRAINAGE TUNNEL)

Dewatering During Construction

Dewatering of Underground Construction sites including supply, installation and removal of pumping equipment from the site

Underground Excavation

Excavation of Drainage Tunnel by Mechanical Means - Road Header

- Class I , II & III

- Class IV and V

Excavation of Drainage Tunnel in slope wash material

Excavation of Drainage Tunnel by Conventional Method (Drill & Blast)

Removal of material arising from overbreak accepted due to geological conditions.

Rock stabilization and Supports

Expansion shell rockbolts 25 mm dia

- Length upto 2.0 m

Resin grouted rockbolts 25 mm dia

- Length upto 2.0 m

Rock Anchors 25 mm dia

- Length upto 2.0 m

Rockbolt testing

- Rockbolts 25 mm dia

Rock Anchor testing

- Rock Anchor 25 mm dia

Lattice Girder

Steel ribs, supply and installation (including accessories)

Steel lagging supply and installation

Precast concrete lagging(M25/A20)

Pregrouting

Drilling for Pregrouting

- 50mm dia holes

- 57mm dia holes

Grouting Operations

- 50mm dia

- 57mm dia

Fore poling

Fore poling 25 mm dia (Drilling & Installation)

Grouting Operations

Pipe Roofing (89 mm Drilling & Installation)

Pre-drainage holes up to 12m length

- 45 mm dia holes

Shotcrete

SFR Shotcrete excluding steel fibre

Cement variation in shotcrete

Superplasticizer

Steel fibre

Micro silica

Drilling, Grouting and Pressure Relief Holes

Drilling of 45 mm dia holes for Consolidation grouting

- In tunnel

- Re-drilling of holes ( 50% of rate in 7.1.1)

Grouting operations

- Single Stage Grouting

- Multi Stage Grouting

76 mm dia pressure relief holes in drainage tunnel up to 15m length

- Drilling of 76mm dia holes

- Supply and installation of 63 mm dia perforated PVC pipes

Drilling of exploratory holes, check holes and holes for instrumentation in drainage tunnels

- Drilling of 50 dia Probe holes

Diamond Core Drilling of Px/Hx/Nx size (preferably Nx size) with triple core barrel drilling machine.

Water pressure testing - simple water test

Embedded steel pipes and fittings for grouting left permanently in place

Grouting materials

- Cement

- Bentonite

- Admixtures

- Microfine Cement

- Colloidal Silica

- PU Grout

Concrete

In drainage tunnel

Plain Cement Concrete M25/A20 including formwork

-In Invert

Backfill Concrete Behind Steel Ribs in geological approved overbreak in tunnels

Cement variation in concrete

Admixtures for concrete

- Air-entraining agent

- Superplasticizer

Miscellaneous and Ancillary Works

PVC Pipes

- 36 mm dia

Description of Work / Item(s)

Amount

Hydro-Mechanical Works for Seri Nala (Group-C, MANDATORY SPARE PARTS )

Service Gate and Manual Gear Operated Screw Hoist at Inlet of Stepped Drain.

Rubber seal along with fasteners for gate

All type of relevant bearings/bushes for screw hoist.

All types of grease nipples

Service Gate and Manual Gear Operated Screw Hoist at Inlet of Silt Flushing Channel.

Rubber seal along with fasteners for gate

All type of relevant bearings/bushes for screw hoist.

All types of grease nipples

Bulk Head Gate and Chain Pulley Hoist at Outlet of Trench Weir

Rubber seal along with fasteners for gate

Description of Work / Item(s)

Amount

Hydro-Mechanical Works for Seri Nala (Group-D, HORIZONTAL TRASH RACKS, Service Gate and Bulk Head Gate )

HORIZONTAL TRASH RACKS ON TRENCH WEIR

Trash racks for complete Trench Weir openings comprising suitable Nos. of trash rack panels and sizes including its Embedded parts

Service Gate and Manual Gear Operated Screw Hoist at Inlet of Stepped Drain

Service Gate (Slide type)

Embedded Parts & Screw Hoist Supporting Structure for 2.1

Manual Gear Operated Screw Hoist etc. for 2.1

Mandatory Spare Parts (ref. Group-C)

Service Gate and Manual Gear Operated Screw Hoist at Inlet of Silt Flushing Channel.

Service Gate (Slide type)

Embedded Parts & Screw Hoist Supporting Structure for 3.1

Manual Gear Operated Screw Hoist etc. for 3.1

Mandatory Spare Parts (Ref -Group-C))

Bulk Head Gate At Outlet Of Trench Weir

Bulk Head Gate (Slide type)

Embedded Parts & Chain Pulley Hoist Supporting Structure for 4.1

Chain Pulley Hoist etc. for 4.1

Mandatory Spare Parts (ref. Group-C)

Description of Work / Item(s)

Total of BoQ1

Total of BoQ2

Total of BoQ4

BHARTIA INFRA PROJECTS LTD

Vensar Constructions Company Limited

BHARTIA INFRA PROJECTS LTD

BHARTIA INFRA PROJECTS LTD

BHARTIA INFRA PROJECTS LTD