Immediate measures for nose armouring and recoupment of old check bund No. 3 at Banpuria Jamuguri on R/B of B/dyke from Jamuguri to Kharoi outfall for 2020-21

Amount

Earth work in embankment by Tractor-trailer carriage inlocally available ordinary soil excluding rocky soil free fromroots & vegetation and filling in uniform layers not exceeding22 cm. thick including ploughing or roughening or benching theseats, removing all debries, breaking clods up to 2.5 cm cube,dressing as per design section including payment of forestroyalty 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 rectangles of 12 cm. 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.

Supplying and launching of bamboo cribs fabricated out in pyramid shape out of matured Bholuka bamboo 75mm to 100mm dia complete with all the branches and foliages with apex point at 7.00m from the bottom. At 0.60 m above the base of 1st row of horizontal stiffeners of size 4.00m x 3.00m are to be provided along with to Nos. of cross struts. A second set of horizontal stiffeners along with cross stiffeners similar to the 1st set are provided at height of 4.00m from the bottom. One set of cross bracing are to be provided in each face in between the 1st and 2nd horizontal stiffeners. All the stiffeners and inclined members are to be projected 0.30m beyond the longitudinal members. All the points are to be pinned with 22 Cm long patent nails and protruding end is to be bent properly to have a firm grip and the apex point is also to be clustered with 8 G. wire. All the members are to be punched with chisel or auger. The cribs are to be weighted with 25 Nos. of earth filled polythene empty cement bags in all corners and middle of 1st and 2nd row of horizontal stiffeners of the cribs, tied firmly with 8 G galvanised wire complete as directed. (Polythene bags, 8G. wire, bamboo pegs , wire rope, U-Bolt etc. will be supplied by the department free of cost.)(Using Bhaluka Bamboo at the rate of 14.00 nos / Rm) Construction of Cribs

Supplying and launching of bamboo cribs fabricated out in pyramid shape out of matured Bholuka bamboo 75mm to 100mm dia complete with all the branches and foliages with apex point at 7.00m from the bottom. At 0.60 m above the base of 1st row of horizontal stiffeners of size 4.00m x 3.00m are to be provided along with to Nos. of cross struts. A second set of horizontal stiffeners along with cross stiffeners similar to the 1st set are provided at height of 4.00m from the bottom. One set of cross bracing are to be provided in each face in between the 1st and 2nd horizontal stiffeners. All the stiffeners and inclined members are to be projected 0.30m beyond the longitudinal members. All the points are to be pinned with 22 Cm long patent nails and protruding end is to be bent properly to have a firm grip and the apex point is also to be clustered with 8 G. wire. All the members are to be punched with chisel or auger. The cribs are to be weighted with 25 Nos. of earth filled polythene empty cement bags in all corners and middle of 1st and 2nd row of horizontal stiffeners of the cribs, tied firmly with 8 G galvanised wire complete as directed. (Polythene bags, 8G. wire, bamboo pegs , wire rope, U-Bolt etc. will be supplied by the department free of cost.)(Using Bhaluka Bamboo at the rate of 14.00 nos / Rm) Launching of cribs without boat

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

Supply of Geo-textile bags of Type-B (Size 2.00m x 1.50m), inner dimension made of composite layers of geo-textile as per specifications below : Woven Geo-textile for the outer cover. The woven geo textile is woven with UV resistant slit film tape fibre with MAVR values of the following properties. Geo-textile used to manufacture geotextile bags should have high mechanical properties for enhanced durability along with enhanced puncture, abrasion and U.V. resistance characteristics. Geo-textile should be inert to biological degradation and resistant to naturally encountered chemicals, alkalis, and acids  Weight (ISO-9864/ASTMD 5261) ≥250 Gms/Sqm.  Tensile strength(MD) ( ASTMD 4595) = ≥35 kN/m  Tensile strength(CD) ( ASTMD 4595) = ≥35 kN/m  Tensile Elongation ( ASTMD 4595)= ≥5% & ≤30%  Grab Elongation ( ASTMD 4632)= ≥5% & ≤30%  Tensile strength ( ASTMD 4632) = 1.5 KN  UV resistance( ASTMD 4355) = 70%/500 hrs Non woven Geo-textile for the inner layer It is needle punched non woven geo-textile made of 100% polypropylene staple fiberswhich are formed into a random network for dimensionalstability it should resist UV degradation, rotting and alkalis.  Weight (ISO-9864/ASTMD 5261) ≥300 Gms/Sqm.  Tensile strength(MD) ( ASTMD 4595) = ≥12 kN/m  Tensile strength(CD) ( ASTMD 4595) = ≥12 kN/m  Tensile Elongation ( ASTMD 4595)= ≥5% & ≤30%  Grab Elongation ( ASTMD 4632)= ≥5% & ≤30%  Tensile strength ( ASTMD 4632) = 1.5 KN  UV resistance( ASTMD 4355) = 70%/500 hrs  UV resistance( ASTMD 4355) = 70%/500 hrs (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).FOR GUWAHATI

Filling and laying of nonwoven Geo-textile bag of dimension2.00mx1.50m including excavation of sand from flood plain oradjacent chars within a distance of 90m of the work site, filling geobags with sand having minimum volume 0.612 cum after filling,double locking chain stitching the mouth of the filled bags withpolypropylene thread by power driven double needle machine,laying at proper site including all handling charges and localcarriage within a distance of 100m complete as directed. (Geo Bag and Polypropylene thread will be supplied by the department free of cost) ii) with boat

Supply of Geo-textile bags of type-A (size 1.03X0.70M), inner dimension 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 (iii) Mass ≥ 400.00 Gm/m ² (iv) CBR Puncture strength ≥ 4100 N/m2 (v) Elongation @ break (Warp) ≥ 54% (vi) Elongation @ break (Weft)≥ 52% (vii) Abrasion ≥ 70 % (viii) UV Resistance @ 500 hours ≥ 70% (ix) AOS ≤ 75 micron (x) Permittivity ≥ 1.25, (xi) Trapezoidal Tear Strength ≤ 520 N (xii) Permeability = 45Lt/m2/sec (xiii) 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 beprinted 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). FOR GUWAHATI

Filling and laying of Geo bags of size 1.03m X0.70m 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. (sand,Geo Bag and Polypropylene thread will be supplied by the department free of cost) i)Without Boat

Supply of non-woven Geo-textile fabric sheets of 300 GSM manufactured from 100% virgin Polypropylene (PP) fibre with minimum properties as (i) Tensile strength ≥ 12 KN/m (ii) Mass ≥ 300.00 Gm/m ² (iii) CBR Puncture strength ≥ 3.5 KN (iv) Elongation at break ≥ 60% (v) Abrasion ≥ 70 % (vi) UV Resistance @ 500 hours ≥ 70% (vii) 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 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. (Each Roll of Geo Fabric Sheet should be supplied in properly packed Bundles and should be marked with the Name of Manufacturer & Batch Number clearly on each bundle 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) FOR GUWAHATI

Labour charge for laying of Geo-febric sheet as filter below pitching including anchorage and complete as directed.

Excavation for roadway in soil using manual means for carrying of cut earth to embankment site with a lift upto 1.5 m and lead upto 50 m as per Technical Specification Clause 302.3 (Manual should be use where machines can not be deployed due to site condition) ii Excavation in Soil with Dozer with lead upto 100 m.

Carriage of Geo Bags of size 2.00 x 1.50 m including loading &unloading , Stacking cost of P.O.L. ,etc. complete and including hire charge of truck with driver and handyman completed asdirected..(Distance to be calculated with respect to FOR Guwahati) (Total Distance: 326.00km)

Carriage of Geo Bags of size 1.03 x 0.70 m including loading & unloading , Stacking cost of P.O.L. ,etc. complete and including hire charge of truck with driver and handyman completed as directed.(Distance to be calculated with respect to FOR Guwahati)(Total Distance: 326.00km)

Carriage of 300 gsm Geo sheet of including loading & unloading , Stacking cost of P.O.L. ,etc. complete and including hire charge of truck with driver and handyman completed as directed.(Distance to be calculated with respect to FOR Guwahati).(Total Distance: 326.00km)

Supply of sewing thread/Yarn PPMF stitching thread (2000 Den,Kaplon) including payment of all taxes.

Supply of Pre stressed Cement Concrete (PSC) Porcupine members of size 0.10m X 0.10mX 3.00m with M-40 grade of cement concrete with graded broken course aggregates up to 12mm size down and reinforced with 4 Nos. of 4 mm dia high tensile steel wire cable at four corners with necessary cover and 4mm high tensile stirrups at 250mm C/C, in conformity with IS-6403 and stressed to required strength not exceeding 9.18 N/mm, holes of 16 mm dia at 50 cm inside from both ends in the same face and in either face of post another 2 Nos. of holes of size 16 mm dia at 65mm inside from both ends including properly curing for 14 (fourteen) days and carriage of porcupine members from factory to the stack yard within a distance up to 100 Km 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) 1)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) ii) Launching by boat:

Local carriage of porcupine Members by diesel truck of 10 M.T. capacity including loading at stackyard and unloading at river bank upto an average lead of 10KM and all lift complete as directed.

Construction of temporrary shed of two roof with mud plinth of0.45 m height above ground level with Bhaluka bamboo post 1.5m apart driven at atleast 0.75 m below ground and height aboveplint 2.5m. Split Jatti bamboo wall mud plastering white washing2 coats, 10 cm thick touch roofing over bamboo rua frame placingat 0.15 m clear apart fitted with bamboo kamies from binding doors and windows with Bamboo Chattai strengthening withBamboo frame binding with wire etc compple as directed. (Using Bhaluka Bamboo at the rate of 6.00 nos/ Rm & Jati Bamboo at therate of 61.00nos / Rm)

SONJIB DAS