Comprehensive Restoration and Rejuvenation of Okkiyum Maduvu in Sholinganalur Taluk of Chennai District

Amount

Earth Work excavation for foundation in all soils and sub soils and to full depth as may be directed by the Departmental Officers except hard rock requiring blasting including shoring, strutting and baling out of surface water wherever necessary and refilling the sides of foundation with excavated soil in layers not exceeding 15 cm thick, well rammed and consolidated and depositing including all initial leads and initial lifts, etc., complete complying with standard specifications and as directed by the departmental officers. (Open excavation)

Earth work excavation in all kinds of soils except Hard rock requiring blasting and conveying for formation of coffer bund with lead of 6KM deploying earth moving machineries and tippers including benching, formation of bunds, breaking clods, sectioning, etc complete complying with standard specification and as directed by the departmental officers.(For Coffer Bund)

Supplying and filling in foundation, basement, etc with Stone Dust in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

Supplying and erecting centring for vertical plain / RCC concrete walls of supply channel, retaining wall etc of following height with necessary supports, all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3 mm for bearing laid silver Oak / Country wood joist of size 7.50 cm x 5.0 cm spaced @ about 90 cm C / C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C / C, etc., complete complying with standard specifications and as directed by the departmental officers (Vertical Centering)

0m to 2.70 m or 3.00 m

Supplying, fabricating and placing in position of Mild Steel or Ribbed Tor Steel for all RCC works as per design & drawing given including cost of steel, binding wire and labour charges for cutting, bending, laying in position and tying with binding wire, etc. complete complying with standard specifications and as directed by the departmental officers

Providing and placing in position of Plain Cement Concrete M10 using M sand and hard blue granite broken stone jelly of size 20 mm mixing with mixer machine and laying including the cost of bailing/pumping out of surface water wherever necessary laying the concrete in layers of not exceeding 15 cm thick, compacting, consolidation, finishing, watering, curing etc. complete complying with standard specifications and as directed by the departmental officers

Supplying and laying of ready mix for M 25 grade of concrete having characteristic strength not less than specified in the IS:456-2000 using ordinary Portland cement with minimum cement content of 300 kg / Cu.m confirming to IS 8112. Coarse aggregates having a specific gravity of 2.60 using 20 mm downgraded hard blue granite broken stone jelly and fine aggregates without fly ash as per IS 383 - 1970(2007) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199–1959 (2004). The initial & final setting time confirming IS 12269–1987 (2004) with maximum temperature of concrete at the time of placing should not exceed 32oc. The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103 – 1979 [ usual admixture – Air entraining & water reducing]. Including the cost of hire charges for pump & pumping charges to the required location and levels as specified by the Engineer–in–charge, Curing, testing, laying, compacting, consolidation by using vibrators, finishing, watering, testing charges as per IS 456–2000, 4031–(Part 3 & 6)/1988(2005) & (Part2)/1999(2004) and 516/1959(2004), 4926 – 1976(1990), mix design details to be got and approved before commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering and shuttering and cost of reinforcement grills placed in the position etc, complete complying with standard specifications and as directed by the departmental officers (RCC Works)

Shoring, and strutting with sheet piles of size width 400 mm x height of 3m x thickness of 9mm as per IS 2314-1986 by driving on both sides of the trench from Ground Level up to the required depth and connecting the above sheet piles by horizontal strutting with sheet piles at an interval of 1.0m, fixing the sheet piles by connecting the horizontal strutting with casurina poles of 8cm to 10cm dia. at 1.50m interval and including removing the sheet piles after the pipelines are laid, jointed, tested, and stacking it safely for other uses. It includes the cost of sheet piles and casurina poles including labour charges for erecting the sheet piles, driving the sheet piles, removing the sheet piles, fixing Casurina poles, etc., complete complying with standard specification and as directed by the departmental officers. 0 to 5m

Conveying the excavated and desilted materials by deploying earth moving machineries and conveying the excavated earth by using lorries/Tippers with a lead of 2km including loading and unloading of the silt to the dumping yard as shown the departmental officer and levelling the same as complete complying with standard specification and as directed by the departmental officers

Conveying the excavated and desilted materials by deploying earth moving machineries and conveying the excavated earth by using lorries/Tippers with a lead of 8km including loading and unloading of the silt to the dumping yard as shown the departmental officer and levelling the same as complete complying with standard specification and as directed by the departmental officers

Removal of sludge, slush, silt, debris, plastic waste, water weeds, using appropriate special machineries like dredger along the cutter section having maximum capacity of 300cum solids per hour which can dredge to a maximum of 8.00m depth and dispose the dredged material to a maximum of 4Km on either one of the outer slope of river banks whichever is convenient as per the prevailing site conditions for easy conveyance and jungle clearance by pumping operation along with suitable pipeline and other required accessories with other mechanical devices for the entire stretch to reach the bank. the rates including cost of transportation, Mobilization and demobilization of machinery, hire charges, cost of fuel, labour charges for surveying and operation of dredger, crew and other related works etc. complete complying with standard specification and as directed by the departmental officers.

Dewatering using 7.50HP diesel pumpset with suction and delivery pipe for required length as per the site conditions including cost of fuel and crew charges, Transportation etc complete complying with standard specification and as directed by the departmental officers.

Providing and placing Poly Vinyl Chloride(PVC) water stopper of size 150mm with central bulb and serrated at the necessary expansion and contraction joints including all the cost of materials and labour charges for fixing the same at joints etc., complete complying with standard specifications and as directed by the departmental officers.PVC Water Bar 150mm wide with Single Bulb.

Suppling and fixing bitumen pad of 20 mm thickness conforming to IS for joints including cost of all materials and labours etc complete compyling with standard specification and as directed by the departmental officers

Hiring the Pocalin Ex-200 on use hours basis for removal of accumulated sadiments in etc., Complete complying with standard specifications and as directed by the departmental officers

GST 18 % in Figures

P.P.S. CONSTRUCTION (BID ID -1376614)