Civil Works Package under Lot-2 of Dibang Multipurpose Project , 2880 MW, Arunachal Pradesh, India.

Amount

CURRENCY

CURRENCY

Dewatering During Construction

Dewatering of Surface Construction Sites including supply, installation and removal of pumping equipment from the site (Fixed Rate Item)

Surface Excavation

Common Excavation

Rock Excavation

Control perimeter blasting

Line drilling

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

Removal of Rock Plug & Concrete Coffer Wall

Extra for haulage of excavated materials beyond 2 km Lead upto 10 km

Rock Supports

Rock Anchors 25 mm dia including accessories and testing of anchors

Length upto 9 m

Length more than 9.0 m and upto 12.0 m

Rock Anchors 32 mm dia including accessories and testing of anchors

Length upto 9 m

Length more than 9.0 m and upto 12.0 m

Soil Nail/ Anchors 25 mm dia including accessories and testing of anchors

Length upto 9 m

Soil Nail/ Anchors 32 mm dia including accessories and testing of anchors

Length upto 9 m

Grouted Anchor bars 25 mm dia

Length upto 6.0 m

Length more than 6.0 m and upto 9.0 m

Grouted Anchor bars 32 mm dia

Length upto 6.0 m

Length more than 6.0 m and upto 9.0 m

Rock anchor/Grouted Anchor bars extensions into concrete 25mm/32mm dia.

Mesh reinforcement

Welded wiremesh reinforcement

Post-Tensioned Rock Bolts/Cable anchors (Tendons)

Providing and installation of 700 kN ,35 m long post tensioned rock bolts/cable anchors (Tendons)

Test rock bolts/cable anchors (Tendons)

Shotcrete

SFR Shotcrete excluding steel fibre

Shotcrete

Cement variation in shotcrete (Fixed Rate Item)

Micro Silica

Superplacticiser

Steel fibre

Embankment Construction and Backfill

Backfill

Random backfill

Compacted backfill

Free-draining backfill

Sand-gravel backfill/Fill

Drilling, Grouting & Pressure Relief Holes

Drilling for Pressure Relief holes

Drilling of 45 mm dia hole

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

Supply and installation of 36 mm dia perforated/ Slotted PVC pipes

Drilling of exploratory holes, check holes and holes for instrumentation at any inclination

Drilling of 45 mm dia. holes

Drilling of 50mm dia. holes

Drilling of 76 mm dia. holes

Extra for core recovery

Water pressure testing - simple water test

Embedding pipes and fittings for grouting left permanently in place

Placing grout (excluding cement)

Contact grouting operations ordered by Engineer-in-charge

Fill grouting

- Temporary drainage system

- Exploratory holes

Consolidation Grouting Operation

Grouting Materials

Cement

Bentonite

Admixture

Micro fine cement/ Ultra fine cement

Concrete

Diversion Tunnel - Inlet and Outlet

Reinforced Cement Concrete- M25/ A40 for Raft

Reinforced Cement Concrete- M25/ A20 for Side Piers/ walls/ beams/ slabs

Reinforced Cement Concrete- M20/ A40 in concrete cladding

M40/ A20 - behind steel liner and blockout concrete

M30/ A20 - RCC pad for Post-tensioned rock bolts (Tendons)

Backfill/ leveling concrete - M15/ A40 in surface works including concrete coffer wall

Admixtures for Concrete

Cement variation in concrete (Fixed Rate Item)

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

Plain Reinforcing bars

Couplers

32 mm Dia

36 mm Dia

Waterstops and Joints

General joints

PVC water stops (sizes as per TS)

Metal Works

Railing (SS Pipe), 40 mm dia

Railing (GI Pipe), 40 mm dia

Steel pipe handrail, 40 mm dia

Ladders

Gratings and frames

Climbing irons

Erection hooks

Steel anchorings

Steel pipes of any diameter

Miscellaneous steel sections as edge protection, frames, bearing plates, brackets etc. of various dimensions, including bolts, screws, anchors and other accessories for interior and exterior purpose

Miscellaneous and Ancillary Works

Fencing and gates

Fencing (sizes as per TS)

Gates

Weep Holes

PVC Pipes

50 mm dia

75 mm dia

Pipes fully embedded in concrete

200 mm dia

300 mm dia

Slope Protection Works

Stone Pitching

Wire Crates / Gabions

Wire Crates

Boulder filling in wire crates etc.

Wet RR Masonry

Rock paving in mortar

Bio-Engineering Measures

Jute-Geo Textile

Monitoring Instruments

Load cells

Single point borehole extensometer (6m)

Mechanical type

Electrical type

3 Point Borehole Extensometer (5m, 10m and 15m)

Mechanical type

Electrical type

Piezometers

Surface settelement points

Inclined inclinometers

Read out Units

Read out units for Electrical Load Cells

Read out units for other Electrical instruments e.g. extensometers, piezometers etc.

Data acquisition system and Web based data monitoring services

Description of Work / Item(s)

Amount

CURRENCY

CURRENCY

Dewatering During Construction

Dewatering of underground Construction Sites including supply, installation and removal of pumping equipment from the Site (Fixed Rate Item)

Underground Excavation

Excavation of Diversion Tunnel

Class II

Class III

Class IV

Class Va & Vb

By Multiple Drifting due to Geological reasons

Removal of material arising from overbreak accepted due to geological conditions

Extra for haulage of excavated materials

Beyond 2 km up to 10 km

Shear/ weak zone treatment

Pre-drainage holes 45 mm dia

Drilling for Pregrouting

for 45 mm dia

for 57 mm dia

Grouting Operations

for 45 mm dia holes

for 57 mm dia holes

Fore poling (Drilling & Installation)

- 32 mm dia

- 25 mm dia

Grouting Operations

32 mm dia holes

25 mm dia holes

Self Drilling Anchor 32 mm dia with all accessories

Pipe Roofing 89mm dia (Drilling & Installation)

Rock Supports

Rock Anchors 25 mm dia including accessories and testing of anchors

Length upto 6 m

Length more than 6.0 m and upto 9.0 m

Length more than 9.0 m and upto 12.0 m

Rock Anchors 32 mm dia including accessories and testing of anchors

Length upto 6 m

Length more than 6.0 m and upto 9.0 m

Length more than 9.0 m and upto 12.0 m

Expansion shell rockbolts 25 mm dia

Length upto 6 m

Length more than 6.0 m and upto 9.0 m

Length more than 9.0 m and upto 12.0 m

Expansion Shell rockbolts 32 mm dia

Length upto 6 m

Length more than 6.0 m and upto 9.0 m

Length more than 9.0 m and upto 12.0 m

Resin grouted rockbolts 25 mm dia

Length upto 6.0 m

Resin grouted rockbolts 32 mm dia

Length upto 6.0 m

Water expandable friction anchor 25 mm dia

Length upto 6.0 m

Testing of Reinforcing Elements

Structural Steel Support

Steel ribs, supply & installation (including accessories)

Precast concrete lagging (M25/A20)

Welded Wire mesh

Shotcrete

SFR Shotcrete excluding micro silica and steel fibre

Shotcrete

Cement variation in shotcrete (Fixed Rate Item)

Micro Silica

Superplacticiser

Steel fibre

Drilling, Grouting & Pressure Relief Holes

Drilling of 45 mm dia holes for Contact grouting

In the Tunnels

Grouting operations

- Single Stage Grouting (Placing contact grout)

Drilling of 45 mm dia holes for Consolidation grouting

In Tunnels

Re-drilling of holes ( 50% of rate in 7.2.1)

Grouting Operations

- Multi Stage Grouting

45 mm dia pressure relief holes in the tunnels - up to 9m length

Drilling of 45 mm dia hole

Supply and installation of 36 mm dia perforated/ Slotted PVC pipes

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

Drilling of 45 mm dia holes

Drilling of 50 mm dia holes

Drilling of 76 mm dia holes

Extra over for drilling with triple tube core barrels

Extra for core recovery

Water pressure testing - simple water test

Embedded steel pipes and fittings for grouting left permanently in place

Placing grout (Excluding cement)

Contact grouting ordered by the Engineer-in-Charge

Fill grouting in Temporary drainage system

Fill grouting in exploratory holes

Grouting Materials

Cement

Bentonite

Admixture

Micro fine cement/ Ultra fine cement

Colloidal Silica

Concrete

Concrete lining including formwork in Diversion Tunnel

Plain cement concrete lining in invert - M25/ A40

Plain cement concrete lining in overt - M25/ A20

M25/A20 in approved overbreaks ( 75% of rate in 9.1.2)

Backfill concrete- M15/A40

Behind Steel Ribs in overbreaks accepted due to geological conditions

Admixtures for concrete

Cement variation in concrete (Fixed Rate Item)

Air-entraining agent

Superplasticizer

Reinforcing Steel

Deformed Reinforcing bars Grade Fe 500

Monitoring Instruments

Load cells

Convergence measuring tape

Mechanical type

Electrical type

Single point borehole extensometer (6m)

Mechanical type

Electrical type

3 Point Borehole Extensometer (4m, 7m and 10m)

Mechanical type

Electrical type

Piezometers

Read out Units

Read out units for Electrical Load Cells

Read out units for other Electrical instruments e.g. extensometers, piezometers etc.

Data acquisition system and Web based data monitoring services

Description of Work / Item(s)

Amount

CURRENCY

CURRENCY

Clearing and Grubbing of Land

Clearing and Grubbing Road Land. (clearing and grubbing road land including uprooting rank vegetation, grass, bushes, shrubs, saplings and trees girth up to 300 mm, removal of stumps of trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned up to a lead of 1000 metres including removal and disposal of top organic soil not exceeding 150 mm in thickness).

- In the area of light jungle

Excavations

Excavation for structures (earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material)

- Ordinary rock (not requiring blasting) by Mechanical Means

- Hard rock (requiring blasting) by Mechanical Means

Excavation in ordinary rock with dozer with lead upto 100 metres (excavation for roadway in ordinary rock by deploying a dozer, 80 HP including cutting and pushing the cut earth to site of embankment upto a distance of 100 metres (average lead 50 metres), trimming bottom and side slopes in accordance with the requirements of lines, grades and cross sections).

Excavation in hilly area in ordinary rock not requiring blasting by mechanical means including cutting and trimming of slopes and disposal of excavated earth on the barren valley side.

Excavation in hilly areas in hard rock requiring blasting (excavation in hilly areas in hard rock requiring blasting, by mechanical means including trimming of slopes and disposal of cut material with all lifts and lead upto 1000 metres).

Cost of haulage excluding loading and unloading on hillroads. Haulage of materials by tipper excluding cost of loading, unloading and stacking.

- Surfaced road

- Katcha track and track in river bed/ nallah bed and choe bed

Subgrade

Preparation and surface treatment of formation. (preparation and surface treatment of formation by removing mud and slurry, watering to the extent needed to maintain the desired moisture content, trimming to the required line, grade, profile and rolling with 8-10 tonne smooth wheeled roller, complete as per clause 310).

Compacting original ground supporting subgrade (loosening of the ground upto a level of 500 mm below the subgrade level, watered, graded and compacted in layers to meet requirement of table 300-2 for subgrade construction).

Plant Mix Method (construction of granular sub-base by providing close graded material, mixing in a mechanical mix plant at OMC, carriage of mixed material to work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per clause 401) for grading- I material.

Construction of subgrade and earthen shoulders (construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lifts & leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of table No. 300-2).

Wet Mix Macadam (providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the material with water at OMC in mechanical mix plant carriage of mixed material by tipper to site, laying in uniform layers with paver in sub- base/ base course on well prepared surface and compacting with vibratory roller to achieve the desired density).

Consolidation of sub-grade with road roller of 8 to 12 tonne capacity including making good the undulations etc. with earth or quarry spoils etc. and rerolling the sub grade.

Laying, spreading and compacting stone aggregate of specified sizes to WBM specifications in uniform thickness, hand picking, rolling with 3 wheeled road/vibratory roller 8-10 tonne capacity in stages to proper grade and camber, applying and brooming requisite type of screening/ binding material to fill up interstices of coarse aggregate, watering and compacting to the required density.

Bituminous Pavement

Dense Graded Bituminous Macadam (providing and laying dense bituminous macadam with 100-120 TPH batch type HMP producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.0 to 4.5% by weight of total mix of mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRTH specification clause No. 507 complete in all respects) (ii) for Grading- II material (19mm nominal size).

Bituminous Concrete (providing and laying bituminous concrete with 100- 120 TPH batch type hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 5.4 to 5.6 % of mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MORTH specification clause No. 509 complete in all respects) (i) for Grading- I (13 mm nominal size).

Mastic Asphalt (providing and laying 25 mm thick mastic asphalt wearing course with paving grade bitumen meeting the requirements given in table 500-29, prepared by using mastic cooker and laid to required level and slope after cleaning the surface, including providing antiskid surface with bitumen precoated fine- grained hard stone chipping of 13.2 mm nominal size at the rate of 0.005cum per 10 sqm and at an approximate spacing of 10 cm center to center in both directions, pressed into surface when the temperature of surfaces not less than 1000C, protruding 1 mm to 4 mm over mastic surface, all complete as per clause 515).

Seal Coat (providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type A and B seal coats) (i) Case -I Type A

Concrete Pavement

Dry Lean Cement Concrete Sub- base (construction of dry lean cement concrete Sub- base over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per table 600-1, cement content not to be less than 150 kg/ cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, laid with a paver with electronic sensor, compacting with 8-10 tonnes vibratory roller, finishing and curing).

Cement Concrete Pavement (construction of un-reinforced, dowel jointed, plain cement concrete pavement over a prepared sub base with 43 grade cement @ 400 kg per cum, coarse and fine aggregate conforming to IS 383, maximum size of coarse aggregate not exceeding 25 mm, mixed in a batching and mixing plant as per approved mix design, transported to site, laid with a fixed form or slip form paver, spread, compacted and finished in a continuous operation including provision of contraction, expansion, construction and longitudinal joints, joint filler, separation membrane, sealant primer, joint sealant, ebonding strip, dowel bar, tie rod, admixtures as approved, curing compound, finishing to lines and grades as per drawing).

For wearing coat: Providing and laying cement concrete 1 : 1.5 : 3 (1 cement : 1.50 coarse sand : 3 stone aggregate 20 mm nominal size) excluding the cost of centring and shuttering in : a)

- Foundations and plinth

Providing and laying Cement concrete wearing coat M-30 grade including reinforcement (steel reinforcement 80 kg/cum of concrete)complete as per drawing and Technical Specifications.

Concrete Lined Drain

Construction of cement concrete drain 30 cm wide and 23 cm deep in cement concrete 1 : 3 : 6 (1 cement : 3 sand : 6 hard graded stone chips/shingle 40 mm and down gauge) 8 cm thick on sides and bottom and plastering on all exposed surfaces with 12 mm thick cement mortar1 : 3 (1 cement : 3 fine sand) including shuttering complete.

Masonry Works

Stone masonry work in cement mortar 1:3 for substructure complete as per drawing and Technical Specifications (B)

Coursed Rubble Masonry (first sort)

Concrete

Providing and laying cement concrete 1 : 3 : 6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) excluding the cost of centring and shuttering in foundations and plinth.

Plain Cement Concrete M10 (1 : 3 : 6) nominal mix in levelling course below open foundation of head walls as per PCC 1:3:6 in foundation (plain cement concrete 1:3:6 mix with crushed stone aggregate 40 mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing for 14 days).

Plain/ Reinforced Cement Concrete in open foundation complete as per drawing and technical specifications

PCC Grade M15 (1 : 2.5 : 5)

RCC Grade M25 (using concrete mixer)

Providing and laying up to floor two level cement 1 : 2 : 4 (1 cement : 2 coarse sand : 4 stone aggregate 20 mm nominal size) including centring shuttering in

- Kerbs, steps and the like.

- above first floor level. (Extra 1% of rates in C8.4.1)

Plain/Reinforced cement concrete in sub-structure complete as per drawing and technical specifications

PCC Grade M20 (height upto 5m)

RCC Grade M25 (height up to 5 m) using concrete mixer

Furnishing and placing Reinforced Cement Concrete in super-structure as per drawing and Technical Specification

RCC Grade M25 (height up to 5 m) using concrete mixer

Reinforcement

Supplying, fitting and placing un-coated HYSD bar reinforcement in foundation complete as per drawing and technical specifications

Supplying, fitting and placing HYSD bar reinforcement in sub-structure complete as per drawing and technical specifications

Supplying, fitting and placing HYSD bar reinforcement in superstructure complete as per drawing and technical specifications

Embankment Works

Embankment construction with material obtained from borrow pits (construction of embankment with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirement of table 300-2)

Compacting original ground supporting embankment

Formwork

Centring and shuttering including strutting, propping etc and removal of form work for :

- Foundation, footings, bases of columns etc. and mass concrete.

- Walls (any thickness) including attached pilasters, buttresses, plinth and string courses etc.

- Suspended floors, roofs, landings shelves and their supports (up to 3.5 m height).

Miscellaneous and Anciliary Works

Providing and laying boulders apron on river bed for protection against scour with stone boulders weighing not less than 40 kg each complete as per drawing and Technical specification

- Boulder laid dry without wire crates

Boulder apron laid in wire crates (providing and laying of boulder apron laid in wire crates made with 4mm dia GI wire conforming to IS: 280 & IS:4826 in 100mm x 100mm mesh (weaved diagonally) including 10% extra for laps and joints laid with stone boulders weighing not less than 40 kg (each).

Cement Concrete blocks (size 0.5 x 0.5 x 0.5 m) (providing and laying of apron with cement concrete blocks of size 0.5 x 0.5 x 0.5 m cast in-situ and made with nominal mix of M-15 grade cement concrete with a minimum cement content of 250 kg/cum as per IRC: 21-2000).

Laying Reinforced Cement Concrete Pipe NP 2 prestrssed concrete pipe on first class bedding in double row. (Laying reinforced cement concrete pipe NP2/ prestrssed concrete pipe for culverts on first class bedding of granular material in double row including fixing collar with cement mortar 1 : 2 but excluding excavation, protection works, backfilling, concrete and masonry works in head walls and parapets).

- 1000 mm dia

Road Safety Works

Type - B, "THRIE": Metal Beam Crash Barrier (providing and erecting a "Thrie" metal beam crash barrier comprising of 3 mm thick corrugated sheet metal beam rail, 85 cm above road/ground level, fixed on ISMC series channel vertical post, 150 x 75 x 5 mm spaced 2 m centre to centre, 2 m high with 1.15 m below ground level, all steel parts and fitments to be galvanised by hot dip process, all fittings to conform to IS:1367 and IS:1364, metal beam rail to be fixed on the vertical post with a space of channel section 150 x 75 x 5 mm, 546 mm long complete as per clause 810).

Road markings, Road signs etc.

Bridges

Loading and Unloading of Cement/ Steel /Structural Steel/ RC Pipes/ Wooden logs/ Bricks/ Bitumen and timber etc,. by manual means and stacking for hill roads.

Planning, Investigation, Design, Construction, Testing and commissioning of 70R double lane Bridge Having 7.5m carriageway width and 0.9m footpath on either side for approximate 2711 m length at different locations with design and construction of suitable abutments / Pier/ well foundation/ Pile foundation, dirt wall, return wall approach slab etc. complete in all respect.

Permanaent RCC/ Steel girder type bridge at River Dibang

Permanaent RCC type bridge at Ashu Pani

Temporary Steel girder type bridge at River Dibang U/s of dam axis

Temporary Steel girder type bridge at River Dibang D/s of dam axis

Supply, Construction, Testing and Lounching of Bailey Bridges (70R) at different locations in access/ hauladge road with design and construction of suitable abutments / pier dirt wall, return wall etc. complete in all respects.

Description of Work / Item(s)

Amount

CURRENCY

CURRENCY

PART-X (Supply of Plant and Equipment)

Design, procurement, fabrication/manufacturing, inspection, shop assembly, testing, painting and supply including necessary spares parts for trouble free operation of diversion tunnel gates & hoists and steel liners.

First stage inserts (anchors with plates), embedded parts, corner angles, dogging devices etc. for diversion tunnel gates complete in all respects, in accordance with the specifications and drawings.

Second stage embedded parts for diversion tunnel gates complete with wheel track assembly, bumper track,seal seats, seat seat bases, sill beams, lintel beams, guides, dogging beams, second stage anchor bolts with double nuts and washers etc. complete in all respect in accordance with specifications and drawings.

Fixed wheel type diversion tunnel gates for opening size 5.5m X 12.0m including skin plate, vertical stiffeners, horizontal girders including bottom lip, diapharms, side, top and bottom seal assemblies, end vertical girders, wheel assemblies, lifting attachments, splice joints, all other accessories and appurtenances, complete in all respect in accordance with specifications and drawings.

Electrically operated rope drum hoists for diversion tunnel gates capacity not less than 270T including wire ropes, drums, sheaves, gearings, shafts, couplings, bearing, pedestal/plummer blocks, standard gear reducers, electric motor, electromagnatic brakes, gate position indicator, limit swithches, Control panel, power & control cables and wiring, base frame etc. complete in all respect in accordance with the specifications and drawings.

Hoist supporting structures, foundation anchors, walkways, ladders, hand rails, chequrred plate flooring, guard railings, lighting arrangements, associated jointings etc. complete in all respect as per the specifications and drawings. (Common Hoist supporting structure for two adjacent gates)

Steel liner at bottom and side piers as per drawing.

Mandatory Spare parts - As per details given in Particular Technical Specification

PART-Y (Installation of Plant and Equipment)

Transportation from shop to site for erection / installation/ storage at site including transit insurance of material supplied under:

Item 1.1 above

Item 1.2 above

Item 1.3 above

Item 1.4 above

Item 1.5 above

Item 1.6 above

Item 1.7 above

PART-Z (Installation of Plant and Equipment)

Site assembly, Erection / installation, field painting, testing and commissioning of material supplied under:

Item 1.1 above

Item 1.2 above

Item 1.3 above

Item 1.4 above

Item 1.5 above

Item 1.6 above

Description of Work / Item(s)

Amount

Group A surface works - Item rate (BoQ1)

Group B underground works - Item rate (BoQ2)

Group C : Road Works - Item rate (BoQ3)

Group D : HM Works- Diversion Tunnel Gates and Hoists - Item rate (BoQ4)

Bidder Name

Larsen and Toubro Limited