Construction of Fully Underground Cavern (L-50m, H-4.2m, W-5.4m) at Shesharthang ,Leh for Indian Army

Surface excavation at portals:Common excavation

Surface excavation at portals:Rock Excavation

Underground Excavation :Excavation of Access Tunnel and Cavern :Very good, Good, Fair rock

Underground Excavation :Excavation of Access Tunnel and Cavern :Poor, Very poor rock

Rock stabilization and Supports:Rock Anchors 25 mm dia in surface work including accessories and testing of anchors:'-upto 3 m long

Rock stabilization and Supports-Rock Bolt 25 mm dia in Underground including accessories and testing of anchors-'-upto 3 m long

Rock stabilization and Supports-Wiremesh-Welded wiremesh

Rock stabilization and Supports-Steel ribs, supply & installation (including accessories)

Rock stabilization and Supports-Precast concrete lagging (M25/A20)

Shotcrete: Plain Shotcrete :In Tunnels & cavern

Shotcrete:Plain Shotcrete: At portals

Shotcrete:Extra for providing and mixing of Water proofing material in shotcrete

Shotcrete: Cement Variation

Backfill:Filling fine sand below invert concrete

Backfill:Gravel filling

Drilling & Grouting for consolidation :Drilling of 45 mm dia. holes for consolidation grouting

Drilling & Grouting for consolidation :Grouting operations:Grouting operation for consolidation grouting

Drilling & Grouting for consolidation :Cement for grouting: Cement

Concrete:Concrete lining including formwork in Tunnel & cavern: M25 A40 in invert lining in access tunnel & Cavern

Concrete:Concrete lining including formwork in Tunnel & cavern:M25 A40 Reinforced concrete in cavern in overt

Concrete:Concrete lining including formwork in Tunnel & cavern:M25 A40 PCC in access tunnel in overt

Concrete:M30 A40 Reinforced concrete in Portals

Concrete:M15 A40 Backfill concrete in underground excavation in overbreaks accepted due to geological conditions 50% of the quoted rate

Concrete:Extra for providing and mixing of Water proofing material in concrete work

Concrete::Cement Variation

Reinforcing Steel:Deformed Reinforcing bars Grade Fe 500

WATER PROOFING : Drainage board 500 gsm with 8mm Dimple with prefixed Geotextile 100 gsm

WATER PROOFING : Providing, laying & fixing of water proofing Geo Membrane PVC-P Type 2 mm thick:

WATER PROOFING :Geo Textile 500 gsm

WATER PROOFING :PVC-P 1.5 mm thick

WATER PROOFING :Perforated PVC 75 mm Dia. Pipes

MISCELLANEOUS :Providing and fixing 2mm thick M.S. sheet door with frame of 40x40x6mm angle iron and 3 mm M.S.gusset plates at the junctions and corners, all necessary fittings complete, including applying a priming coat of approved steel primer Using M.S. angels 75x75x6 mm for diagonal braces. With complete fittings and fixtures.

ELECTRICAL ITEMS :Flame proof Led Light Surface mounted/wall mounted 2x20 watt

ELECTRICAL ITEMS :Installation , testing & commissioning of lighting fixtures Fully enclosed

ELECTRICAL ITEMS :Underground Point wiring for Lighting fixtures with 2x2.5sqmm Copper cable + 1x2.5sqmm Copper earth wire & steel conduit

ELECTRICAL ITEMS :Underground Point wiring for Exhaust fan & blower with 2x4sqmm Copper cable + 1x4sqmm Copper earth wire & steel conduit

ELECTRICAL ITEMS :Supplying and fixing 12 way, single pole and neutral, sheet steel, MCB distribution board, double door 240 V, on surface/ recess, complete with tinned copper bus bar, neutral bus bar, earth bar, din bar, interconnections, powder painted including earthing etc. as required. (But without CB/RCCB/Isolator)

ELECTRICAL ITEMS :Supplying & fixing of ELCB in the existing MCB DB complete with connections, testing and commissioning etc. as required.

ELECTRICAL ITEMS :Supplying and fixing 5 A to 32 A rating, 240/415 V, 10 kA, "C" curve, miniature circuit breaker suitable for inductive load of 2 poles in the existing MCB DB complete with connections, testing and commissioning etc. as required.

ELECTRICAL ITEMS :Supplying & Fixing of of 2P surge protection/Lightning device in the existing MCB DB complete with connections, testing and commissioning etc. as required.

ELECTRICAL ITEMS :Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

ELECTRICAL ITEMS :Providing and fixing 25 mm X 5 mm copper strip on surface or in recess for connections etc. as required.

Flame Proof Ventilation System:Single stage axial fan and motor with suitable capacity to deliver at least 25 Cum/sec maintaining minimum 200mm static pressure for supply of Air.

Flame Proof Ventilation System:Single stage axial fan and motor with suitable capacity to deliver at least 25 Cum/sec maintaining minimum 200mm static pressure for return path of Air.

Flame Proof Ventilation System:Supply, installation, balancing and commissioning of GSS sheet metal rectangular / round ducting complete with neoprene rubber gaskets, elbows, splittr dampers, vanes, hangers, supports etc with suitable cross sectional area graded with reducing size to maintain uniform pressure as per approved drawings and specifications of suitable sheet thickness (no less than 1.25 mm thick sheet) for seperate supply and return line to complete the system as required. (Approx 140 m).

Flame Proof Ventilation System:MCC panel suitable for axial fans & motors with all necessary protection arrangements.

Flame Proof Ventilation System:Power Cable and Control Cable of suitable rating for ventilation system.

Flame Proof Ventilation System:Installation, erection and commissioning of complete ventilation system.

CivilMantra Infracon Pvt Ltd.