Construction of Scour vent in the Existing Arrangement Check dam across the Vaigai River near Arapalayam in Madurai West Taluk of Madurai District

Amount

Dismantling clearing away and carefully stacking materials useful for re-use for any thickness of plain cement concrete etc, complete complying with standard specification and as directed by the Engineer in charge of work.

Earthwork excavation and depositing on bank with an initial lead of 10m and initial lift of 2 m in hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small sized boulders & hard gravelly soil etc., complete complying with standard specification and as directed by the departmental officer. (For Foundation)

Earth work excavation deploying earth moving machinery for desilting channel having a width of more than 10m and forming bund on either sides and depositing the earth on banks including jungle clearance etc., complete complying with standard specification and as directed by the Engineer in charge of work. .

Providing and placing in position of Plain Cement Concrete of grade M 10 using hard well graded coarse aggregate of maximum nominal size of 40mm and downgraded to I.S specified grading (to produce concrete of the specified characteristic strength of 10 N/mm2 in 28 days) including dewatering the placement site by bailing / pumping and diverting wherever necessary, laying the concrete in layers of not exceeding 15cm thick and in bays, compacting and finishing the surface to the profile with all leads and lifts, watering, curing to attain the strength as specified in the drawing for various depth and height below and above ground level etc., complete complying with standard specification and as directed by the Engineer in charge of work.

Supplying and erecting water tight steel centering for sides and soffits including supports and strutting up to height of 3.29 m high for plain surface such as R.C.C.slabs, vertical slabs,side slabs of R.C.C. Works with all cross bracings using mild steel B.G.10 gauge sheets of size 90cm x 60cm stiffened with welded mild steel angles of size 25mm x 25mm x 3mm for boarding laid over silver oak (country wood) joists of size 10cm x6.5cm spaced at about 90cm centre to centre and supported by casurina props of 10cm to 13cm dia spaced at 75cm centre to centre complete complying with standard specification and as directed by the Engineer in charge of work (The retrieved materials should be taken back by the contractor ). The payment for centering should be made after the concrete is laid etc.,

Without strutting

With strutting

Providing and placing in position of Plain Cement Concrete of grade M15 using hard well graded coarse aggregate of maximum nominal size of 40mm (60%) and 20mm (40%) and downgraded to I.S specified grading (to produce concrete of the specified characteristic strength of 15 N/mm2 in 28 days) including dewatering the placement site by bailing / pumping and diverting wherever necessary, laying the concrete in layers of various thickness and in bays, vibrating, compacting and finishing the surface to the profile with all leads and lifts, watering, curing to attain the strength as specified in the drawing for various depth and height below and above ground level etc., complete complying with standard specification and as directed by the Engineer in charge of work.

Below Ground level 1.50 m to Above ground level 1.00 m

Above G.L. 1.00 m to 4.50 m Above Ground level

Providing and laying in position of Standardised Concrete Mix M20 in accordance with IS 456-2000 using 20 mm down graded hard broken granite stone jelly for all RCC items of works with minimum cement concrete of 325 kg/m3 and maximum water cement ratio of 0.55 with about (5 cum) 7730 kg of 20 mm machine crushed stone jelly and with about (3.30 cum) 5156 kg of 10 - 12 mm machine crushed stone jelly and with about (4.79 cum) 7670 kg of sand weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 20N/mm2 at 28days) including dewatering of placement site by bailing/pumping and by diverting wherever necessary laying the concrete in layers and in bays, Vibrating, compacting and finishing the surface water curing so as to attain the profile and strength specified in the approved drawing and specification and excluding the cost component of providing rigid and smooth centering and shuttering wherever necessary for various depths below ground level and various heights above ground level as per the direction of the Engineer complete in all respect but excluding the cost and placing of reinforced grill in position complying with standard specification. (with vibration)

Below Ground level 1.50 m to Above ground level 1.00 m

Above G.L. 1.00 m upto 4.50 m.

Supplying, fabricating and placing in position of RTS or MS reinforcement for all reinforced cement concrete works including cost of steel rods of all sizes including binding wires and labour charges for decoiling, cutting, bending and tying the grills in position etc., complete complying with standard specification and as directed by the departmental officers.

Providing and laying in position standardised Concrete Mix M25 grade in accordance with IS 456 2000 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 350 kg/m3 and maximum water cement ratio of 0.5 including admixtures (plasticizers/super plasticizers) in recommended proportions as per IS1903 to accelarate, retard setting of concrete improve workability without imparing strength and durability with about (5cu.m)7730kg of 20mm machine crushed stone jelly and with about (4.79 cu.m) 7670kg of sand, but excluding the cost of reinforcement grill and fabricating charges centring and shuttering also including laying vibrating with mechanical vibrates finishing curing etc., and providing futures like fan clamps in the rcc floor roof/slabs wherever necessary without claiming extra charges etc,. complete complying with standard specification and as directed by the departmental officers the coarse and fine aggregate to be used should be comply with the requirement of IS standards( no separate payment will be made by the department by the excess usage of materials.) ( Below Ground level 1.50 m to Above ground level 1.00 m )

AboveG.L. 1.00 m upto 4.50 m

Fabricating, supplying and erection of Screw Gearing steel shutters of size 2.10 m x 2.25 m with consists of skin plate made out of 12 mm thick mild steel plate and horizontally stiffened with 100 mm x 50 mm x 6 mm steel channel (ISMC) at an interval of not more than 0.5 m and vertical stiffeners made out of same section at an interval not more than 0.6 m and provided with 8 mm thick mild steel gusset plate of required size on both sides fastened with rust free bolts and nuts etc. Groove Channels of ISMC 100mmx100mmx10mm mild steel angle for required height up to 5.00 m including welding hold fast of size 40 mm x 40 mmx 6 mm mild steel angle 3 numbers on both sides. Providing Sill Beam of 150mm x 80mm x 6mm, 2.10 m length and providing of 63 mm dia screw rod made of mild steel duly machined and fully threaded to suite the Head set assembly with required height up to 3.35 m and required holes. Fixing the screw rod to the shutter gusset plate with required bolts and nuts in proper alignment to the Head Set. Providing of Top Beam made up of 200 mm x 100 mm x 6 mm (ISMB 200) for the length of 3.70 m duly drilled to suite the Head Set assembly with required bed bolts made out of 25 mm mild steel round rod duly threaded with suitable anchorage arrangements to the height of 0.60 m with necessary fish plate

made out of 16 mm mild steel plate of size 0.20 m x 0.30 m 2 numbers with require bolts. Providing Head set assembly medium duty with Hexagonal nut (approximate 70 kg) made up of cast iron including moulding, machining and Hexagonal nut threaded to suit screw rod provided with thrust bearings for smooth operation. Dismantling the existing damaged shutter assembly conveying and stacking at section store. The whole shutter assembly should be painted with two coats of anti-corrosive black paint over one coat of red oxide primer paint. Erecting the Shutter assembly by Durky post and Chain block fixing the top beam with necessary. The rate is inclusive of all materials, labour charges including Lathing, Drilling, Welding, Gas cutting, Hydraulic bend removing of M.S. rod, hire charges of Crane and also inclusive of cost of covering plate, Foundation bolts, all bolt and nuts, conveyance to this site, Loading and unloading charges, Grease packing, Lubricating oil, Operating key, Locking arrangement and checking the Shutter operation etc., complete as directed by the Departmental Officers. Shutter Size - 2.10m x 2.25m

M/s. LUCKY ASSOCIATES (BID ID -1420904)