Urgent repairs and maintenance of 450 mm dia D.I. Pipeline supplying Raw water to PWD through Storage Tank at Penha-De-Franca in Porvorim Constituency.

Amount

Earthwork in excavation by mechanical means (hydraulic excavator)/manual means in foundation pipeline trenches drain (not exceeding 1.5 m in width or 10 sq.m. on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 50 m : a) All kinds of soil 60%

All types of Ordinary rock including all types of laterite rock, blasting prohibited 40%

Cutting the bituminous road for laying the pipeline in trenches for a width of 0.6m including labour , tools etc, and disposing the excavated excess mat erial from the trench to a distance of 1000 metres, including making level the trench surface by utilising the serviciable material to the level of the top surface of road, by compacting, watering ramming with rolling with road roller after completion of laying of pipe and refilling the trenches etc. complete as per the direction of engineer incharge : a) By manual Means 1) Rural Roads

Supplying cast iron fittings as per IS : 1538 -1993 including sealing rubber gasket (NR) CI Compression glands and coated MS Nuts bolts: IV Long Sleeve Collar Coupling (Cut & Repair Coupling) Nominal Dia in mm (j) 450

Supplying at store or site of work including railway freight, carting, loading and unloading, stacking etc. Centrifugally cast, (spun) ductile iron pressure pipes (with socket/spigot ends) conforming to IS : 8329-2000 with cement mortar lining inside the pipe and outside zinc coat as per IS : 8329-2000 with up to date amendments suitable for jointing with rubber gasketknown as TYTON joints. Class K-9: h) 450 mm dia

Supplying at store or site of work including railway freight, carting, loading, unloading, stacking etc. Ductile iron Sewage double flanged manually operated Sluice Valve generally conforming to IS: 14846 - 2000 having body, door, dome, gland in graded cast iron to IS:210 Gr. FG 260, four faces and spindle nut of leaded tin bronze to IS:318 Gr. LTB 2, inside screw of non-rising stainless steel AISI 410 IS 6603 GR 12 CR 12 spindle, Flanges drilled to IS:1538 Table 4 & 6. Valves tested by closed end method only (350mm and above will be fitted with BTB and gear box. and back seat bush.) TYPE P.N. 1.6 (Class A ) Dia. in mm: d) 150

Supplying at store or site of work including railway freight, carting, loading, unloading, stacking etc. cast iron Air valve kinetic double orifice type as per fig DK without isolating valve generally , confirming to IS1 4845/2000 (with latest amendments).Low pressure large orifice chamber with vulcanite coated timber ball resting on moulded rubber seating and chamber having C.I. cowl protection High pressure chamber shall have rubber coated timber ball as float, having Float guides ;and LTB or SS orifice nipple. The valve shall be with built in kinetic features isolating sluice valve confirming to IS:14846 mounted in a horizontal position and operated by meter wheel gearing, inlet faced and drilled to IS:1538 Table 4 & 6 . TYPE P.N. 1.0 (Class A) Dia. in mm: d) 150

Making joints to D.I/ C.I pipes with mechanical joints by nut bolts rubber rings that are provided with the joints,for pushon tight joints, and including the cost of rubber ring, nut bolts, for flanged joint, including the cost of work force, tools, hydraulic testing of joints etc complete as per the direction of the engineer in charge: II) Flanged Socket: I) 450 mm

Rubble packing with hard laterite stone under floors including watering ramming and consolidating etc. in pipeline trenches and other foundations complete.

Providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand: 4 graded granitic or basaltic stone aggregate 40 m nominal size) excluding cost of centering, shuttering and finishing : a) All works upto plinth level

Making flanged joints for C.I./D.I. Pipes and specials with rubber insertion, nuts and bolts including necessary hydraulic testing etc. complete including cost of rubber insertion nuts and bolts,as directed by the engineer in-charge : j) 450 mm dia

Cutting of cast iron / ductile iron pipes by mechanical grinder working on electricity, including the cost of hire charges of mechanical grinder, diesel operated electrical generator set, Suitable for supplying power for the grinder for cutting, cost of grinding blades , skilled work force, fuel etc required for completion of job as per thedirection of Engineer- in -charge: j) 450 mm dia

Refilling the pipeline/foundation trenches plinth sides,foundation etc. with available excavated earth in layers not exceeding 20 cm depth consolidating layer ramming and watering lead upto 50 m and all lifts and disposal of surplus earth as directed by Engineer in Charge

HIRE CHARGES OF MACHINERIES JCB Excavator (For 8 hours)

Pump for pumping water continuously from trenches (For 8 hours)