Construction of 10000 litres OHT, New borewell arrangement and Pumproom arrangement at Aathiyadi Vinayakar kovil Srilankan Rehabilitation camp

Amount

Earthwork excavation in all classes of Soils and Sub soils except hard rock requiring blasting including initial lead and lift, dressing the excavation upto bed level for Foundation as SS 20 B specification etc., complete I Depth

II Depth

Cement Concrete 1:4:8 mix using 40mm ISS HBG metal including cost and conveyance of all materials to site, labour charges for mixing, laying, compacting and curing concrete etc., complete

Reinforced Cement Concrete 1:1.5:3 using 20mm ISS HBG metal including cost and conveyance of all maerials to site and all labour charges for mixing concrete, placing, ramming, vibrating with mechanical vibrator, consolidation and Curing etc., complete as directed by departmental officers. Footing

Items 0 to 1.5m below GL

above GL & Upto 4.5m

above 4.51m & upto 7.32m from GL

above 7.32m & upto 10.98m from GL

Supplying and erecting centering for sides and soffits including supports and strutting upto 3.29M height for plane surfaces in all floors with all cross bracings using mild steel sheets of size 90cm x 60 cm., and 10 gauge stiffened, welded with mild steel angles of size 25mm x 25mm x 3 mm for boarding laid over silver oak (Country wood) joist of size 10 cm., x 6.5 cm., dia spaced at about 90 cm centre to centre etc., complete complying with standard specifications and as directed for the following items. Plane Surface 0-3.30m Below G.L.

0 to 3.30m above G.L.

Curved Surface 0-3.30m Below G.L.

Square Columns Below GL

0 to 3.30m above G.L.

3.31 to 4.30m above G.L.

4.31 to 5.30m above G.L.

5.31 to 6.30m above G.L.

6.31 to 7.30m above G.L.

Exterior Emulsion painting two coats with best approved quality and colour paint over one coat of Base coat including cost and convyance of all materials to work site and labour charges etc., complete.

Supplying, fabricating and placing in position mild steel or ribbed for steel for all reinforced cement concrete works as per the design given including cost of steel and binding wire in all floors etc., complete complying with standard specification (M.S. rods or RTS) bars will be supplied departmentally at section stores and cost will be recovered at issue rate). The binding wire shall be supplied by the contractor.

Brick work in CM 1:5 (one cement & Five Crushed Stone Sand (M- Sand)) using II class ground moulded bricks of size 9" X 43/8"X 2 3/4" including finishing, curing, etc., complete complying with standard specification - 100CFT

Plastering with cement mortar 1:5 (One part of Cement and Five part of Plastering Sand (P- Sand)) 12mm, thick in all floors including cost and conveyance of all materilas to site and labour charges etc,complete as per standard specifications

Plain Cement Concrete 1:2:4 (one cement, two Crushed Stone Sand (M- Sand) and four coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification

Fabrication, supply, delivery and fixing of outsideMS Ladder of 30cm clear wide made out of 50mm x 50mm x 6mm MS angle for both sides and for steps at 30cm C/C welded jointed etc ., for I staging from GL to 1st level brace (weight 4.5kg/m) IInd and IIIrd staging upto floor slab and IVth staging from floor slab to roof top. Supply, delivery and fixing of 32 mm GI pipes medium for hand rails from I stage to IVth stage. RCC M30 Grade mix for Landing slab 5 nos. at Ground Level 1No. and above Ground Level - 4Nos. Supply and fixing of 32mm GI pipe medium for hand rails for the Landing slab. Supplying and fixing of MS Base plate of 100mm X 100mm X 6mm thick for fixing Anchore fastener bolt for fixing of hand rails at Landing slab and MS Ladder providing locking arrangements with two coats of approved enamel paint over one coat of red oxide paint as per approved Type Design and as directed by TWAD board officers.

Providing and fixing of RCC inside access ladder in RCC 1:1.5:3 (One cement, one and half sand and three aggregates) using 20mm HBG stone including cost of reinforcement, placing grill in position, centering shuttering charges, mixing concrete curing etc.

Supply and delivery of clear water vertical wet type submersible pump suitable for 100mm dia borewell conforming to IS 8034/2002 as amended thereafter and BEE 3 Star Rated capable of discharging noted LPM against head of water column due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze or Cast SS impeller, brass screws and CI FG 200 grade pump bowl/diffuser with ISI mark. The pump shall be directly coupled to a continuos rated two pole suitable wet type vertical squirrel cage induction motor as per IS9283 /1995 and as amended there after, suitable for operation in AC three phase 415 V+/- 10 %, 50 HZ +/- 5 %

Supply and delivery of direct online starter confirming to IS13947, IEC60947-1 and as amended thereafter with suitable KW rating for operation in AC/Three Phase/50HZ(± 5%) and 415 V(±10%) including Ammeter, Voltmeter, Thermal Overload relay, 16 Amps 2 pole Magnetic Contactor with under Voltage protection, Indication lamp, starting capacitor, running capacitor and On/Off Push button switches, 5 way connector, wiring with 1 sq. mm/1.5 sq. mm copper PVC insulated cable, powder coated vermin proof box including the capacitor (the cost of capacitor is to be taken separately).

Labour charges for the erection of submersible pumpset in borewell/openwell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days.

Drilling of Borewells anywhere in Tamilnadu including transportation from one place to another with in Tamilnadu in alluvial soil sedimentary strata of clay and sand stone shale pebbles boulders etc. By first taking a pilot bore of 140 mm/150mm dia and then enlarging to required dia direct or reverse rotary mud circulation method using rotary rigs, fuel, labour and drilling bentonite and water required for drilling at site ( Site will be shown by the TWAD Board Officers) including construction of mud pit. P.S. to M.D.S.S. Special Specifications.

Labour charges for inserting casing pipes assembly (With slot or without slot) in the drilled hole including welding the joint etc., complete and supplying and packing the annular space with pebbles of size and quality as approved by the Executive Engineer

roviding GI pipe connection arrangements for inlet, outlet scour and overflow etc. including cost of pipes, specials, valve, labour charge for lifting, aligning, cutting, threading, fixing and painting of GI pipes with two coats of approved quality ename50 mm G.I. Pipe

50mm dia GI Cupling

50mm dia GI Flange Set

50mm dia GM Gate Valve

50mm dia GI Hex Nipple

Kisok Box

Refilling with excavated Soil (other than sand) in layers of not more than 15cm thick, watering, well ramming, consolidating, complying with standard specification and as directed by TWAD Board Officers.

S MARIAPPAN (BID ID -1526776)