Immediate measures for repairing of breach like damages at 13th Km R/B Embankment of Puthimari river at village Maregaon under SDRF for 2019-20

Amount

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

Supply of Geo-textile bags of type-A (1.03X0.70M) made of Geo-textile non-woven fabric sheets of 400 GSM manufactured from 100% virgin Polypropylene (PP) fibre having thickness not less than 3.00 mm with minimum properties as (i) Tensile strength (CD) ≥ 24 KN/m (ii) Tensile strength (MD) ≥ 22 KN/m (ii) Mass ≥ 400.00 Gm/m ² (iii) CBR Puncture strength ≥ 4100 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 ≤ 520 N (xi) Permeability = 45Lt/m2/sec (xii) Seam strength = 80 % of geotextiles strength . Stitching of Bags should be Ring Spun Yarn stitches with 2500-3000 denier double line chain stitch with overlap with stitches along the edge @ minimum 15 stitches per 100 mm. (Bags are to be supplied of 100 numbers or part in a bundle, properly packed with name of Manufacturer 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 invariably be submitted against each batch of material).

Carriage of Geo Bag of size (1.03x 0.70m) including loading, unloading and stacking including cost of POL etc. complete hire charge of Truck with driver and Handyman complete as directed.( Distance to be calculated from Guwahati). (Location is above 70 Km).

Supply of Galvd. Wire netting sheets made of 8G. Wire of 152mm (6”) squire mesh in sheet of overall size 2.57 x 1.66 m (5’ – 6” ) including 76mm projection of each wire on all sizes beyond the net of 2.42 x 1.50m ( including loading, unloading and stacking properly etc. Complete as directed. Tax extra).

Filling and laying Geo Begs of size 1.03 x 0.70 M Excavation of specified silt from flood plain or adjacent char with in a distance of 90 M from the work site and filling with sand , weighing 126 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 any local carriage within a distance of 150 M and laying properly as directed (Geo bags and Polypropylene thread will be supplied by the Deptt. free of cost ). Without boat.

Filling and laying cage with silt filled Geo Begs of size 1.03 x 0.70 M excluding excavation of specified silt from flood plain or adjacent char with in a distance of 90 M from the work site and filling with sand , weighing 126 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 any local carriage within a distance of 150 M and laying properly in cages made of wire 2.57x1.66m of 8G galved wire making the cage from 2nos of wire netting sheets by tying the projected wire complete as directed (Geo bags, wire netting sheet and Polypropylene thread will be supplied by the Deptt. free of cost ). Without boat

Earth work in embankment by Tractor-trailer carriage in locally available ordinary soil excluding rocky soil free from roots & vegetation and filling in uniform layers not exceeding 22 cm. thick including ploughing or roughening or benching the seats, removing all debries, breaking clods up to 2.5 cm 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 earth work on account of shrinkage).

Turfing with grass sods of largest possible rectangular of 12cm minimum thickness placed closely including dressing of earth paging with Jati bamboo splits, watering till the grass grows for a lead upto 90m and for all lift etc. complete as directed.

Supply of Sewing Thread/Yarn PPMF Stitching Thread (2000 Den. Kaplon) i/c payment of taxes

SRI KAMINI KANTA BASUMATARY