Tender For Improvement Of Hanumata Irrigation Scheme Within Block- Balarampur, Dist-Purulia - 1 Cutting uprooting and clearing jungles including shrubs, water weeds, bushes, trees, plants, upto 30cm. Girth including removing as directed by Engineer-in-charge. 2 Earthwork in excavation in the canals /drainage channels/ borrow pits/ River bed/slope of bank as noted below as per designed section & throwing the spoils in layers of 25cm. for making banks as per profile or to deposit the same in any other place within an initial lead of 30 metre and initial lift of 1.5 metre including breaking clods, rough dressing etc. complete as per direction of the Engineer-in-charge.(a)Ordinary soil/ local soil/ soil mixed with moorum or kankar/silt, dry or moist / slushy silt / sticky soil. 3 Extra rate over Item Nos.1.01, 1.02 & 1.03 for all kinds of soil for every additional lift of 1.50 metre or part thereof beyond the initial lift of 1.50 metre.One Extra Lift 4 Earthworkinexcavationoffoundationofstructures asperdrawingand technical specification, including settingout,removing,spreadingorstackingofspoils within a lead of 150 m. as directed and including trimmingthesidesofthetrenches,leveling,dressing andrammingthebottom,andbackfillingwith approved materialcomplete as perdirection of the Engineer-in-Charge I. In all sorts ofsoil excludingmarshysoil& rocks ( soft 0r hard ) by mnual means. a) upto 3 m depth. (iV) Without pumping out water and shoring. 5 Sand filling in foundation trenches and at the back of abutments, wing-walls etc. with good local sand free from earth in layers not exceeding 15 cm.including inundating each layer by profuse water and poking and ramming layer by layer complete including supply of sand. Quality of sand is to be approved by the Engineer-in-charge.Note : 1. Labour rate per m³ is provided; Cost of sand is tobe added to arrive at the complete item rate.2. Compaction factor of dry clean sand is 0.835. 6 “Precast cement concrete blocks or lining units as per designed sections and specifications, in nominal mix proportion 1:1.5:3 (corresponding to M20 Grade) with well graded 20 mm down stone metal aggregate, including dressing, ramming, shuttering, finishing thesurface by trowel without adding any additional cement and sand mortar, curing, transporting and laying the blocks or lining units at worksite in position over sand cushion/ filter layer, with cold (paper) joints between the adjacent units having gap varing from 0 to 5 mm as tolerance, with all leads and lifts, including supply and carriage of all materials complete.(The rate is exclusive of the cost of stone aggregate and its carriage upto site. Construction wing has to add the cost of same from the SoR of PW (Roads) to derive the consolidated rate. Consumption chart of the USoR may be used for assessing the quantity of coarse aggregates per cum of concrete).(Stone Aggregate of Pakur or Rajmahal,or broken stone of North Bengal varieties)Note:provisions of the latest departmental manual for lining in Irrigation Canals are to be followed ,when ever applicable. 7 Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant IS codes.a) Pakur Variety 8 Hire and labour charges for Shuttering with or without staging upto 4.0 m height using approved stout props with wooden planks/ply wood/steel sheet plate with required bracing for any kind of plain or reinforced concrete works in all sorts of minor structure including culvert, box culvert, crossdrain etc. The rate is inclusive of fitting, fixing and striking out after completion of work as per specification and direction.(b) Where staging is not required. 9 Supplying, fitting and fixing PVC pipes for underground work of approved make of Schedule 80 (medium duty) conforming to ASTMD -1785 and threaded to match with GI Pipes as per IS : 1239 (Part - I). with all necessary accessories, specials viz. socket, bend, tee, union, cross, elbo, nipple, longscrew, reducing socket, reducing tee, short piece etc. fitted including cost of all materials ,jointing materials, cutting pipes, making threads ,cutting trenches upto 1.5 metre below surface in all sorts of soil and refilling the same as directed complete in all respect. (Payment will be made on the centre line measurement of the total pipe line including all specials No separate payment will be made for accessories, specials.) PVC Pipes(Dia) 250 mm 10 Providing & fixing Concrete Sign Board as per IRC specification of size 900 x 750 x 37 mm. thick made with RCC 1:1½:3 with pakur variety stone chips reinforced with double layer IRC febric (75 x 75 mm. mesh) and fixed with necessary nuts & bolts on two RC precast posts 100 mm. x 150 mm. of height 2.65 m. of which top 750 mm. is of section 100 x 13 mm. and 1.90 metre above GL & 0.75 metre below GL including digging hole, repacking the same with cement concrete 1:3:6 with jhama khoa or with local stone chips etc. complete including painting two coats on both faces lettering sign marks etc. as per direction of the Engineer-in-Charge. (The rate is inclusive of cost of reinforcement, concrete, shuttering, nuts & bolts, washer etc. complete.)
