Erosion mitigation Gauripur ELIS (Jamduar Pt) under SDMF for the year 2023-24

Earth work with TRUCK CARRIAGE (Filling) Earthwork in filling in all soils in plinth, canal embankment and bed filling as per design section and grade by truck carriage for a minimum distance of 4 KM including paying compensation of earth obtained from private land if any loading, unloading, spreading the same including light jungle, removing trees upto 15 cm dia and uprooting roots and stumps etc. from the seat of the embankment, breaking clods not more than 10 mm cube, ramming, profiling etc. with all lift, complete as directed. (Payment will be made after deduction of 12.50 % shrinkage allowance from the gross quantity). By the river side.

BOULDER Collection of blasted boulder of size 25 cm to 30 cm including stacking at quarry site, complete as directed. River Bank Pitching and launching apron

LABOUR CHARGE FOR BANK PITCHING 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. River Bank Pitching and launching apron

SUPPLY OF GEO FABRIC SHEET BELLOW PITCHING Supply of non-woven Geo-textile fabric sheets of 300 GSM manufactured from 100% virgin Polypropylene (PP) fibre with minimum properties as per IS 16653: 2017  Wide Tensile strength (MD) ≥ 15kN/m & Wide Tensile strength (CD) ≥ 15kN/m  Elongation (MD) ≥ 50% & Elongation (CD) ≥ 50%  Abrasion ≥ 95% Trapezoidal Tear Strength (MD) ≥ 340 N & Trapezoidal Tear Strength (CD) ≥ 340 N  CBR Puncture strength ≥ 3000 N  Permittivity ≥ 1.25 s-1  Permeability ≥ 60l/m2/sec  AOS ≤ 75micron  UV Resistance @ 500 hours retained Tensile strength (MD) & (CD) ≥ 80%  Mass ≥ 300gm/m²  Thickness at 2KPa ≥ 3 mm. (Each Roll of Geo Fabric Sheet should be supplied in properly packed Bundles and should be marked with the Name of Manufacturer, Batch Number & its dimensions clearly on each roll with “WRD Govt. of ASSAM” to be printed on it and mentioning properly the GSM and type of polymer and Test Certificate from approved NABL accredited and ISO Certified Laboratory should invariably be submitted against each batch of material). Bellow River Bank Pitching .

LABOUR CHARGE FOR BANK PITCHING Labour charge for laying Geo fabric sheet as filter bellow pitching including carrying, lapping, wrapping & stitching as directed by the Engineer-in-Charge. River Bank Pitching .

SUPPLY OF GEO TUBE Supply of geo-textile Tube (Mega containers) with minimum properties as mentioned below  Polymer = PP  Tube Circumference = 4.3  Fill Port (diameter) = 30 to 45 cm  Tensile Strength (MD) ≥ 175 kN/m  Tensile Strength (CD) ≥ 175 kN/m  Elongation – MD ≤ 25%  AOS ≤ 0.180 mm  Permittivity ≥ 0.40 S-1 Tube Circumference = 4.3 (m) b. Length = 10 m

FILLING OF SAND IN GEO TUBE River sand filling in plinth, canal bed, canal slopes, bases of structure, etc in layers not more than 150 mm thick including necessary carriage, watering etc, complete as directed as specified.

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