Reconstruction of breach embkt. on R/B of Bhelengi

Amount

Medium Jungles: Clearing medium jungles and trees upto 15 cm. girth including cutting, uprooting roots and stumps, removing them from the site of the work, etc. complete as directed. ( When 30% to 60 % of the area is covered by shrubs,trees etc).

Cutting bamboo , uprooting roots & stumps including removing them from the site of work, etc. complete as directed.

Earth work in embankment by truck carriage in ordinary/normal soil excluding sandy and rocky soil free from roots & vegetation and filling in uniform layers not exceeding 22cm. thick including ploughing or roughening or benching the seats, removing all debries, breaking clods up to 2.5cm cube, dressing as per design section including payment of forest royalty if any, etc. complete as directed. (10% deduction will be made from the section measured quantities of the completed and compacted on account of shrinkage) For initial lead beyond ½ Km and up to 4.00 Km and for all lifts.

Compacting Original Ground (i) Compacting original ground supporting embankment Loosening, levelling and compacting original ground supporting embankment to facilitate placement of first layer of embankment , scarified to a depth of 150mm, mixed with water at OMC and then compacted by rolling so as to achieve minimum dry density as given Table 300.1& 300.2 for embankment construction as per Technical specification clause 301.4.1

Labour for ramming with cast iron rammer to proper compaction including watering if necessary , etc. complete as directed. Ordinary soil:

Turfing with grass sods of largest possible rectangles of 12cm minimum thickness placed closely including dressing earth pegging with jati bamboo split, watering till the grass grows for a lead up to 90m and all lifts.

Earthwork in bank trimming to the designed section /slope including removing the soils at a safe distance, complete as directed.

Supply of R.C.C. Porcupine member of size 0.10m × 0.10m × 3.00m with cement concrete proportion 1 :2:4, reinforced by 4 Nos. of 8mm dia TMT bar. and 4mm dia (8G) wire stirrups at 15cm. C/C with 2 (two) nos of holes of 20mm dia at 50 cm inside from both sides in the same face and in the other face of member another 2 (two) nos. of holes of size 20mm dia at 65 cm inside from both ends including properly curing for 28 days and supply at specified stackyard complete as directed.

Labour charge for launching of R.C.C. / PSC Porcupine including carriage of R.C.C./ PSC porcupine members of size 0.10m × 0.10m × 3.00m from the stack yard to the place of launching ,erection of the Porcupine with 6 (six) members properly, supply & fitting/fixing with 12 mm dia 25 Cm long M.S. Nuts and bolts and launching the porcupine properly as directed. (Lead up to 150 m) Launching without boat.

Labour charge for launching of R.C.C. / PSC Porcupine including carriage of R.C.C./ PSC porcupine members of size 0.10m × 0.10m × 3.00m from the stack yard to the place of launching ,erection of the Porcupine with 6 (six) members properly, supply & fitting/fixing with 12 mm dia 25 Cm long M.S. Nuts and bolts and launching the porcupine properly as directed. (Lead up to 150 m) Launching by boat.

Carriage of Porcupine members by 40 HP Tractor -trailor including local carriage of porcupine members from stack yard to loading site up to a lead of 150m, loading , un loading at river bank near work site etc. complete as directed. (For lead beyond 150m and up to 2.00 Km and for all lift).

Collection of sand gravel from approved quarry containing 60% sand and 40% gravel free from disintegrated and flaky pieces of vegetation and other deleterious matters, adherent coating etc. including stacking in suitable stacks at quarry site and payment of forest royalty etc. complete as directed.

Labour charge for laying of soling stone, brick bats, broken stone metal, sand gravel etc. on approach road including ramming dressing the seat and local carriage of materials up to a distance of 60 m complete as directed.

Surajit Roy Rinay Kr Brahma-JV

Mrinal Jyoti das