Construction of revetment for transmission towers of 220 kv SOW Mandola Ckt I II III IV Construction of Support Trench for 220 KV underground Cable Dwarka to PPK near IGL filling station sector 2 Dwarka and finishing Masjid Moth

Sub Head 1 item no 1.1 to 1.9:- Construction of revetment for transmission towers of 220 kv SOW-Mandola Ckt I, II, III & IV.

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means over areas (exceeding 30cm in depth. 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth, lead upto 50m and for all lift as directed by Eningeer-in-charge.All kinds of soil (2016DSR2.6.1)

Excavating, supplying, stacking and filling of local earth (including royalty) by mechanical transport upto a lead of 5km also including ramming and watering of the earth in layers not exceeding 20 cm in foundation trenches, plinth, sides of foundation etc. complete for all lifts. (DSR 2.25(a))

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : - 1:4:8 (1Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources) (2016DSR4.1.8)

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources and using recycled concrete aggregate (RCA) as coarse aggregate and fine aggregate within permissible utilization of 20% each, Portland Pozzolana /Ordinary Portland/Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete. Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. All works upto plinth level Concrete of M25 grade with minimum cement content of 330 kg /cum (DSR5.33A.1.1)

Centering and shuttering including strutting, propping etc. and removal of form for :Foundations, footings, bases of columns, etc. for mass concrete(DSR5.9.1)

Centering and shuttering including strutting, propping etc. and removal of form for :Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc. (DSR5.9.2)

Centering and shuttering including strutting, propping etc. and removal of form for :Columns, Pillars, Piers, Abutments, Posts and Struts (DSR5.9.6)

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 Fe500 D or more. (DSR5.22.6)

Extra rates for quantities of works, executed In or under foul position, including pumping out water as requried. Note for item no. 2.24:- The extra percentage rate is applicable in respect of each item but limited to quantities of work executed in these difficult conditions. The unit, namely, metre depth, to be considered for payment,shall be the depth measured from the sub soil water level up to the centre of gravity of the qty executed in difficult conditions. The depth shall be reckoned correct to 0.10 m, 0.05 m or more shall be taken as 0.10 m and less than 0.05 m ignored. ----Here quantity is taken as sum total amount (in Rs) for item no. 1.1 to 1.8 divided by 100 for adjusting rate quoted in percentage as per item of DSR2.24.2