Construction of small check dam - Check weir - at related laying of pipe lines in Panchawati Beat area, Betapur Range, Middle Andaman Division.

Amount

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and for all lift, as directed by Engineer-in-charge.

All kinds of soil

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.

All kinds of soil.

Excavation work by mechanical means (Hydraulic excavator)/ manual means in foundation trenches or drains (not exceeding 1.5m in width or 10 sqm 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 soils as directed, within a lead of 50 m.

Ordinary rock

Hard rock (blasting prohibited)

Excavating trenches of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, by mechinical / manual means ramming of bottoms, for all depth, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m:

All kinds of soil Pipes, cables etc, not exceeding 80 mm dia. But not exceeding 300mm dia

Extra rates for quantities of works, executed:

In or under water and/or liquid mud, including pumping out water as required

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:1½:3 (1 Cement:1½coarse sand (zone-III) derived from natural sources: 3 graded stone aggregate 20 mm nominal size derived from natural sources)

1:2:4 (1 Cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 40 mm nominal size derived from natural sources)

1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

Extra for laying concrete in or under water and/or liquid mud including cost of pumping or bailing out water and removing slush etc. complete. Note for item No. 4.15 :- The quantity will be calculated by multiplying the depth measured from the sub-soil water level up to centre of gravity of concrete under sub-soil water level with quantity of concrete in cum executed under sub-soil water. The depth of centre of gravity shall be reckoned correct to 0.1m. 0.05m or more shall be taken as 0.1m and less than 0.05m ignored.

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level :

1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size de rived from natural sources)

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fllets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement:

1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Reinforced cement concrete work in well-steining, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources ; 3 graded stone aggregate 20 mm nominal size derived from natural sources).

Centering and shuttering including strutting, propping etc. and removal of form for

Foundations, footings, bases of columns, etc. for mass concrete.

Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Well steining

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more.

12 mm cement plaster of mix :

1:4 (1 cement: 4 fine sand)

Dry stone pitching 22.5 cm thick including supply of stones and preparing surface complete.

Providing and laying S&S C.I. standard specials such as tees, bends, collars, tapers, caps etc. (Heavy class):

Up to 300 mm dia

Supplying pig lead at site of work.

Providing and fixing C.I. sluice valves (with cap) complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) :

150 mm diameter Class I

Providing lead caulked joints to spun iron or C.I. pipes and specials, including testing of joints but excluding the cost of pig lead :

150 mm diameter pipe

Providing and laying S&S Centrifugally Cast (Spun) / Ductile Iron Pipes conforming to IS : 8329 :

300 mm dia Ductile Iron Class K-9 pipes

Providing and fixing C.I. double acting air valve of approved quality with bolts, nuts, rubber insertions etc. complete (The tail pieces, tapers etc if required will be paid separately) :

150 mm dia

Laying in position S&S or flanged C.I. special such as tees, bends, collars, tapers and caps etc.

Upto 300 mm dia

Fixing C.I. sluice valves (with cap) with providing bolts, nuts, rubber insertions etc complete including testing of joints.

150 mm diameter Class I

300 mm diameter Class I

Fixing C.I. double acting air valve of approved quality with providing bolts, nuts, rubber insertions etc. complete including testing of joints :

100 mm dia

Laying in position S&S centrifugally cast (Spun)/Ductile Iron pipes of sizes

100 mm dia Ductile Iron Class K-9 pipes

150 mm dia Ductile Iron Class K-9 pipes

Carriage of DI/CI/GI pipe and specials from Nimbutala to work site at Panchawati by mechanical transportation for an average lead 11 km including loading, unloading and stacking etc complete as per the direction of Engineer-in-charge.

C. KANDASAMY

MONORANJAN MONDAL