Construction of Earthen Dam WHS and Gabion Structure at Daruhi in Hamirpur Range of Hamirpur Forest Division

Amount

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

2.9.1 Ordinary Rock

4.1) Providing and laying cement concrete in retaining walls, walls ( any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, 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.

4.2.2) 1:1.5:3 (1 cement: 1.5 coarse sand) : 3 graded stone aggregate 40 mm nominal size).

4.2.3) 1:2:4 (1 cement: 2 coarse sand): 4 graded stone aggregate 40 mm nominal size.

4.3) Centering and shuttering including strutting, propping etc. and removal of form work for:

4.3.2) Retaining walls. Return walls (any Thickness) including plinth and string course fillets kerbs and steps etc.

2.38) Filling with available fly ash and earth (excluding rock) in trenches or embankment in layers (Each layer should not exceed 15 cm ) with intermediate layer of compacted earth (Soil density of 98%) after every four layers of compacted depth of fly ash, sides and top layer of filling shall be done with earth having total minimum compacted thickness 30 cm or as decided by Engineer-in-charge, including compacting each layer by rolling/ramming and watering, all complete as per drawing and direction of Engineer-in-charge.

2.6.1) 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 10sqm on plan) including getting out and disposals of excavated earth lead up to 50 m and lift up to 1.5 m as directed by Engineer-in-charge.

2.6.1 all kinds of soil

Providing & making Gabion structure with Mechanically woven double twisted hexagonal shaped Wire mesh Gabion Boxes as per IS 16014:2012, MORTH clause 2500 of required size, Mesh Type 10x12 (D=100 mm with tolerance of ± 2% ) Zinc coated, Mesh wire diameter 3.0 mm, mechanically edged/selvedge with partitions at every 1 m interval an shall have minimum 10 numbers of openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2 mm supplied @ 3% by weight of Gabion boxes, filled with boulders with least dimension of 200 mm, as per drawing , all complete as per direction of Engineer-in-charge.

Devender Kumar

Ajay Kumar Thakur

Abdul contractor

TARA CHAND GOVT CONTRACTOR

Vijay Kumar Soni