Immediate measures for repairing of damages on Right Bank embankment of Puthimari river at 7th Km at Chauraguri under SDRF for 2017-18

Amount

Earthwork in bank trimming to the designed section /slope including removing the soils and depositing on bank/toe of proposed structures As directed by the department. Including clearing light jungles,debries and other foreign materials et. With all lead & lifts,etc. complete as directed.

Supply of Geo- textile bags of type –A (1.03 x 0.70m) made of Geo textile non-woven fabric sheets of 400 GSM manufactured from 100% virgin polypropylene(PP) fibre with minimum properties as (i) Tensile strength ≥ 12.4 KN/m (ii) Mass ≥400.00 Gm/m2 (iii) CBR Puncture strength ≥1550 N/m2 (iv) Elongation @ break (Warp) ≥ 54% (v) Elongation @ break (Weft) 52% (vi) Abrasion ≥ 70% (vii) UV Resistance @ 500 hours ≥ 70% (viii) AOS ≤ 75 micron (ix)(Permittivity) ≥ 1.25 (x) Trapezoidal Tear Strength ≤ 340 N (xi) permeability = 2.00 x 10-3 m/sec (xii) Seam strength = 80% of geo textiles strength. Stitching of Bags should be Ring Spun yarn stitches. With 2500 – 3000 denier double line chain stitch with overlaps with stitches along the edge @ minimum 15 stitches per 100 mm. (Bages are to be supplied of100 numbers or part in a bundle, properly packed with name of Manufacture and Batch number is to be marked on each bag with “WRD Govt of Assam” to be printed on each bag and mentioning properly the GSM and type of Geo bag polymer. Test Certificate from approved NABL accredited and ISO Certified Laboratory should in variably be submitted against each batch of material.) (Inclusive of labour 1% cess)

Carriage of Geo bag including loading & unloading cost of P.O.L. etc. complete and including hire charge of truck with driver and handyman.

Supply of Galvd. wire netting sheets made of 8G wire of 152 mm (6") square mesh in each sheet of overall size 2.57 X 1.66 m (8'-6" X 5'- 6") including 76 mm projection of each wire on all sides beyond the net size of 2.42m x 1.50m (8'-5") including loading/unloading and stacking properly complete as directed by the deptt.

Supply of polypropylene thread.

Filling and laying of Geo bags of size 1.03m X 0.70m including excavation of specified silt from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with sand weighing 126.00 Kg after filling ,stitching the mouth of the filled bags with polypropylene thread by power driven double needle machine, stacking the same in batches of 100, carrying the same to the dumping site including all handling charges and local carriage within a distance of 150m and laying properly as directed.(Geo Bag and Polypropylene thread will be supplied by the department free of cost)

Filling and laying in cage with sand filled Geo bags of size1.03m X 0.70m excluding excavation of specified sand from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with sand weighing 126.00 Kg after filling ,stitching the mouth of the filled bags with polypropylene thread by power driven double needle machine, stacking the same in batches of 100, carrying the same to the dumping site including all handling charges and local carriage within a distance of 150m and laying properly. in cages made of wire netting sheets of size 2.57x1.66m of 8G galvanized wire making the cage from 2 nos. of wire netting sheet by tying the projected wires complete as directed. (Geo Bag, Wire Netting Sheets and Polypropylene thread will be supplied by the department free of cost)

SRI KULEN CH BORO

KANAK BARO

Ashok Kr. Basumatary

Hareswar Baro

TAMION BRAHMA