Construction of Head Works

Amount

Construction of Head Works

: Earthwork in excavation in foundation of structures by means of Hydraulic Excavator in all soils including mud, silt, sady clay from the river bed, etc, including clearing the side, dressing,etc.,and removing the earth by loading to dumpers for farther carrige to asafe distance, completeas directed . (0.30 CuM Bucket) A. Upto river bed level Average cutting up to BL ( Up to RL 96.50)

Cost of dewatering involved during earthwork in excavation of foundation trenches of canal structures (by pumps) in soil mixed with silt and sand etc. Dewatering by using 1 No. 10 HP and 2 Nos. 5 HP water pump.

Carriage of excavated earth by dumpers with a lead upto 2 KM unloading to a safe place as directed including spreading, dressing etc, complete as directed.

: CC work in proportion 1:4:8 in foundation / abutment / piers / wing walls etc. with hard broken stone aggregate of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc. where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately).

: CC work in proportion 1:3:6 in foundation / abutment / piers / wing walls etc.with hard broken stone aggregate of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc. where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately).

CC work in proportion 1:2:4 in foundation / abutment / piers / wing walls etc. with hard broken stone aggregate of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc. where necessary complete as directed. (Shuttering, scaffolding cost will be paid separately).

R.C.C work in slab, abutment cap and above abutment, pier cap, pedestal, dirt wall etc.in proportion 1:1½:3 (M20) with hard broken stone agg. of size 6 mm to 20 mm from river boulder with proper reinforcement as per design including curing etc. complete as directed with necessary timber shuttering, scaffolding etc. where necessary complete as directed. (Shuttering, scaffolding cost will be paid separately).

Supplying fitting fixing and laying reinforcement (TATA) in position in RCC work including cutting, bending, cranking with two piles 0.91 M (20 BWG) annealed wire hooking tying complete as directed.

Centering and shuttering including propping etc. where necessary and removal of forms after completion of C.C. and RCC work complete as directed (measurement to be on the face area of timber) .(A) Slab, abutment walls, piers, pedestal etc. (i) with 19mm thick ply board

Providing scaffolding work with rows of Bholuka bamboo and Jati bamboo horizontal one row jati bamboo cross and placing second class planks of 0.025 m thick in between the rows tying with coir strings lacing two nos. vertical jati bamboo at both end including dismantling the scaffolding etc. complete as directed.

Collection and carriage of sand gravel (40% sand and 60% gravel of size 25 mm to 60 mm) free from dust and dirt including stacking in measurable stacks at quarry site and making payment of forest royalty etc. as directed complete.

Supplying and laying of filter materials consisting of sand and river shingles free from dust dirt and other foreign materials and laying in three layers in position as per drawing and specification as directed by the department. Below CC block

Labour charge for spreading of hard river gravel or broken stone of size 13 mm to 38 mm to the required thickness including dressing and ramming the seat before laying the materials as directed with a lead upto 30 M and lift upto 1.5 M complete as directed.

Collection of one man size 25 cm to 30 cm hard river boulder including stacking in measurable stacks of not more than 1.00 M height at quarry site and making payment of forest royalty etc, complete as directed.

Labour charge for pitching with one man size boulder including dressing and ramming the seat to proper size and slope, pitching etc. with local carriage of boulders from a distance of 60 M with lift upto 3 M complete as directed.

Earthwork in back filling of structures, obtained from outside borrow pits filling in 15 cm layers, ramming, dressing, watering, including paying compensation of land if any (with lead up to 30 M and lift 1.5 M).

Dewatering of CC works considering 1 No 10 HP and 1 No of 5 HP pump including POL, Carriage and operator's pay etc.

Supplying and mixing rapidite in concrete works below ground water level where necessary etc. complete as directed.

Providing 75 mm dia. Weep Holes including supplying and fixing 75 mm dia PVC pipe in weep holes, complete as directed.

Supplying, fabricating,fitting and fixing the steel gates of Cross and Head Regulator as per design and drawing and specifications including supplying, fabricating, fitting and fixing operating platform including supplying steel beam, channel sectons, Rubber Seal etc embedded partly where necessary and manual operated hoisting equipments including carriage of all materials to work site complete as directed.

Providing and driving 'Z' type steel sheet pile of 0.69 M effective width, 8mm thick and average weight 68.30 kg/M to specified level and lines including cutting to proper size, making holes including painting sheet piles with two coats of anticorrosive bitumen paint and dewatering including necessary tools and plants and all other accessories complete as directed. (Portion of sheet pile to be embedded in concrete shall not be painted).

Supplying 1 1/2" dia GI pipe for hand railing including fitting & fixing the same in position etc, complete as directed.

MS Luhit Enterprise