Construction of Reinforced Cement Concrete retaining wall for prevention of landslide around the infrastructure at COB Kukidolong of 22 Assam Rifles.

Schedule-'A' PART-I Construction of RCC Retaining wall)

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 lift upto 1.5 m, as directed by Engineer-in-charge in all kind of soil.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

Providing and laying in position cement concrete of 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), excluding the cost of centering and shuttering, All work up to plinth level.

Centering and shuttering including strutting, propping etc. and removal of form work for Foundations, footings, bases for columns.

Centering and shuttering including strutting, propping etc. and removal of form work for Retaining walls, return walls, walls (any thickness) including attached pilasters, buttresses, plinth and string courses fillets, kerbs and steps etc.

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

Providing and laying RCC work in walls (any thickness), with cement concrete mix 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) including attached pilasters, buttresses, plinth and columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete Thermo-Mechanically Treated bars of grade Fe-500D.

Providing and fixing on unplasticised Rigid PVC pipes of 75 mm dia in weep holes. Single socketed pipes.

Excavating, supplying 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 trenches, plinth, sides of foundation etc. complete

SCHEDULE – ‘A’ PART – II Geotechnical Soil Investigation) : Geo Technical soil investigation work by power Driven Drilling at Retaining wall site at COB Kukidolong of 22 Assam Rifles