Construction Of New Ugd Manhole And Providing Sewer Line Arrangements At Rama Krishna Nagar -2 Extension(105046S238) In Kumbakonam City Municipal Corporation

Amount

Earth work excavation and depositing on bank with initial lead of 10 M and lift of 2 M in narrow trenches for laying of pipes for water supply and sewerage works in hard stiff clay,stiff black cotton,stoney earth and earth mixed withsmall size boulders and hard gravelly soil as directed by departmentel officers as per SS20B.,

Supplying and Filling in foundation and basement with Filling M-Sand in layers of not more than 15cm thick well rammed,watered consolidated including cost and conveyance of materials and labour charges etc., complete as per Standard Specification and as directed by departmental Engineers(TNBP No.24&25).

Plain Cement concrete of mix 1:4:8 (One cement four sand and eight aggregates) using 40mm gauge hard broken including cost conveyance of all materials to site including labour charges, transporting and placing in position including shoring, strutting forming protective bunds, cofferdams bailing out of water labour for mixing compacting, finishing and curing, working at depths, tools and plants and incidental charges such as sheeting, shoring and bracing and their subsequent removal etc., complete as per standard specification. TNBP NO.28 V,VI S25

Supply and erection of steel centering, shuttering for soffits and sides including necessary supports and strutting for all RCC works using MS sheets of suitable size of BG 10 stiffened with MS angle of size 25 X 25 X 3mm for boarding laid over Silver Oak joists of size 10cm X 6.5cm spaced at 90cm c/c and supported by Casuarina Props 10cm - 13cm spaced at 75cm c/c etc., complete and as directed by TWAD Board Officers.(Retrieved Materials should be taken back by the contractor.)

Reinforced Cement Concrete 1:1½:3 Mix (One Part of cement, one and half Part of M- Sand and three Part of aggregate)using 20mm size ISS HBG metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing but excluding cost of reinforcement etc. Complete with std. Specifications.(Using Vibrator) TNDSS NO: 30 V, VI (S3), VII-3.

Supplying fabricating and placing in position of RTS grills at all heights for reinforcement including cost of steel for all works and labour charges including cost of binding wire etc., complete for all RCC works and as directed by TWAD Board Officers.

Supply and fixing of PVC encapsulated CI steps ( 1 No at 30 cm interval ) in the manhole.

F.R.C Manhole frame with cover (60cm dia extra heavy duty )

Benching :- P.C.C 1:2:4 (one cement, two sand and four coarse aggregate) using S.R. cement an20 mm H.B.G stone including mixing concrete, laying, curing and compacting of concrete etc., complete and as directed by the TWAD Board Officers.

Barricading work (Where the lines are in narrow width of municipality area, busy streets like Market, Bus-stand and in the Highways etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia. and 1.80m height) vertical with horizontal poles in two rows, painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including supplying, delivery and fixing of GI sheet (0.90m x 0.8mm thick) in the horizontal poles and fixing 75mm dia. reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by Dept officers.

Supply and Delivery of 200mm DWC structured wall polyethylene piping systems ( pipe with online/ offline coupler and elastomeric sealing ring ) with required specials non smooth external annular corrugated and smooth internal surface ( Double Wall) ( SN 8 class) for non - pressure under ground sewerge , drainage application generally as per IS -16098 ( part-2) type B of standard length of 6m, etc, Complete.

Lowering in trenches, laying, aligning in proper grade etc., complete and as directed by departmental officers.

Refilling the outside of the well with excavated earth (other then sand) complying with standard specification for filling the foundation including watering consolidation etc., complete as directedby the TWAD Board Officers.

Disposal of surplus excavated earth in pipe laying and road restoration works etc.,transporting to the sites specified by Engineer within 5 Km lead, including loading, spreading etc., complete and as directed by the Engineer.

Dewatering using diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete.(up to 5 HP)

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