Name of Work: Construction of retaining wall to prevent landslide & project infra at COB Pessao and COB Chenloisho of 29 AR.
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 lift upto 1.5 m, as directed by Engineer-incharge. All kinds of soil
2
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, 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.All kinds of soil.
3
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 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)
4
Coursed rubble masonry (first sort) with hard stone in foundation and plinth with : Cement mortar 1:6 (1 cement : 6 coarse sand)
5
Coursed rubble masonry with hard stone (first or second sort) in superstructure above plinth level and upto floor five level. 7.8.1 Masonry work (first sort), in cement mortar 1:6 (1 cement : 6 coarse sand)
6
Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor etc., up to floor five level, excluding the cost of centering, shuttering and finishing: 1:2:4 (1 Cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)
7
Pointing on stone work with cement mortar 1:3 (1 cement : 3 fine sand) :Raised and cut pointing
8
Providing and laying hard core of guage etc 63 mm deposited spread and levlled in layers watered rammed to a ttue surface
9
Providing and fixing U-PVC pipes (working pressure 4 kg / cm²) Single socketed pipe 75 mm dia
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