Name of Work: Restoration of Launching Apron from bay no 11 to 16 and repair of damaged end sills (dent) at Tanakpur Barrage
Sl. No.
Item Description
1
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
2
Laying of LDPE film (250micron, 5.80m wide *50m long) confirming to IC 2508 revised 1984 or its latest amendments, with the help of Bamboos on the side slopes of ring band in submerged area including cost of all materials.
3
Providing and laying of Empty Cement Bags ( Gunny Bags) filled with local sand and tightened using sutli and carriage upto site including preparing subgrade before placing in position, also including supply of all material, labour, T&P etc required for proper completion of the work.
4
Dewatering by electric pumps
5
Providing and laying in position cement concrete of specified gradeexcluding the cost of centering, shuttering -All work upto plinth level 1:2:4 (1 cement : 2 coarse sand(zone-111)derived from natural sources : 4 graded stone aggregate 40 mm nominal size derived from natural sources).
6
Drilling 32 mm dia holes 50 cm deep in old concrete.
7
Supplying, fitting and placingTMT bar reinforcement in foundation complete as per drawings and technical specifications Clauses 1000 and 1202
8
Preparation and poring of Epoxy primer drill holes as per direction of Engineer - in -charge, including cost of all material.
9
Centering and Shuttering including strutting\"s, propping etc. andremoval of form work for foundations, footings, bases for columns.
10
Providing and laying high performance concrete of given design mix of M-65/A-20 grade including cost of cement, admixtures & Silica fumes in recommended proportions to accelerate/retard setting of concrete but excluding cost of centring & shuttering & reinforcement as per directions of engineer-in charge.
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