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Special Repair To Distributory- 5r (0.00 Km - 3.390 Km) Dy- 6l (0.00 Km - 2.354 Km) Of Mahananda Main Canal, P.s.phansidewa Dist.-darjeeling
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Dressing and chilchalling flanks or slope of embankment including filling with earth or cutting upto 150 mm. average thickness and ramming properly after sprinkling water.
Earthwork in excavation in all kinds of soil for making embankments, repairs to the embankment, closing breaches etc. as per profile including supply and transporting the earth by truck or tractor or any other mechanical means on land , including loading, transporting, unloading and stacking with all lifts bothways and head load where necessary and depositing the same on embankments, clannels, filling depressions in requisite profile, levelling as per direction of the Engineer-in-charge within
b) Beyond 1 Km. and upto 2 Km
c) Beyond 2 Km. and upto 3 Km
d) Beyond 3 Km. and upto 4 Km
d) Beyond 3 Km. and upto 4 Km
Dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. In ground floor including roof. (a) upto 150 mm. thick
Removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge
Earthwork in re-excavation / silt clearance of drainage channels in all kinds of soil including sludge and slush but excluding slush mixed with industrial wastes, sewage, municipal garbage, carcasses, etc and depositing the same as per profile in proper place as directed by the Engineer-in-charge without causing hindrance to traffic and posing health hazard and making arrangement to maintain the site in workable condition including removal of polypacks, brickbats, stone ballasts & boulders, remnants of bullah & bamboo pins and all kinds of water hyacinth, solid / semi solid compact mass formed due to water hyacinth and burning them to ashes or removing outside Govt land where necessary and removal of thick & thorny jungles upto 30 cm girth including shoring and shuttering, if required, and including initial removal of sludge and slush etc by pan or bucket if required, and making arrangement for bailing out of any seepage water and removal of sand or soil blown from underneath, all complete. (Measurement : Pre-work and Post-work level section. Pre-work section to be taken after removal of water hyacinth and all other floating materials etc.) (a) By manual means within an initial lead of 30 M and an initial lift of 1.50 M
Excavation for Structures Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, removing, spreading or stacking of spoils within a lead of 150 m. as directed and including trimming the sides of the trenches, leveling, dressing and ramming the bottom, and backfilling with approved material complete as per direction I. In all sorts of soil excluding marshy soil & rocks (soft or hard) by manual means. a) upto 3 m depth (iii) Without
Earth work in filling in foundation trenches or plinth with good earth, in layers not exceeding 150 mm. including watering and ramming etc. layer by layer complete. (Payment to be made on the basis of measurement of finished quantity of work) a) With earth obtained from excavation of foundation.
Supplying at site and laying in position UV stabilized needle punched, stapled fibre / continuous filament polypropylene non-woven geotextile of 300 gsm as filter, as per specification, including cost of preparing the bed, placing the geotextile as per profile with at least 15cm lapping, wherever required and anchorage at top, sewing / welding the overlapped portion, storage and transportation by all means, complete as per direction of the Engineer-in-charge. Note: 1. Payment to be made on measurement of finished surface without lapping, but including anchoring length at top. 2. Payment will be made subject to the result of 3rd Party Testing, to be done by the Engineer-in-charge departmentally. Paragraphs 2.7.7, 2.7.9 and 2.7.10 under the Chapter of “Specification for Works” in the USoR shall be reproduced and included in the tender document as “Specification and Special Terms & Conditions for Geotextile” in case of
Testing of Geo-textile materials including UV Test from well eqipped laboratories like Jadavpur University, BITRA, CIPET etc.) (This item is applicable only for third party testing conducted by the Engineer-in-charge to assure the quality of the Geo-textile material)
Supplying and laying inverted filter in canal bed, canal slope, weep holes, block pitching etc. as per drawing including preparation of Subgrade etc. complete as per direction of the Engineer-in-charge.
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.
Supplying and laying Polythene Sheet (150gm / sq.m.) over damp proof course or below flooring or roof terracing or in foundation or in foundation trenches.
Ordinary Cement concrete (mix 1:1.5:3) with graded stone aggregates (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant IS codes. (Using 20 mm nominal graded N.B. crusher variety stone aggregates)
Precast cement concrete blocks or lining units as per designed section and specifications, in normal mix proportion 1:1.5:3 (corresponding to M20 Grade) with well graded 20 mm down stone metal aggregate, including dressing, ramming, shuttering, finishing the surface by trowel without adding any additional cement and sand mortar,curing, transporting and lying the blocks or lining units at work site in position, over sand cushion/filter layer,with cold (paper) joints between the adjacent units,having a gap varying from 0 to 5mm 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 Aggregates of Pakur or Rajmahal or broken stone of North Bengal varieties. (Using 20 mm nominal graded N.B. crusher stone aggregate.)
“Cast-in-situ cement concrete blocks or lining units as per designed section and specification, in nominal mix propotion 1:1.5:3 (corresponding to M20 Grade) with well graded 20 mm down stone metal aggregate, laid in position by casting in alternative panels or otherwise to keep a gap of 12mm between the adjacent units, over a layer of polythene sheet of thickness not less than 100 µm to act as a separator between the bottom surface of the block and the sand cushion / filter material laid below the blocks, including dressing, ramming, shuttering, finishing the exposed surface by trowel without adding any additional cement and sand mortar,curring and filling the gaps between the adjacent units by 5.6mm down coarse aggregate to be compacted properly, with all leads and lifts including supply and carriage of all materials, complete, without the cost of sand cushion / filter. (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:-Provisition of latest departmental Manual for linning in Irrigation canals are to be followed, wherever applicable.
Caulking of joints of precast lining blocks with 1 :3 cement sand mortor including cost and carrage of all materials,racking out joints and champering as directed by Engineer-in-charge and curing all complete.
Turfing with chorkata or durba grass sods 5 cm. to 8 cm. thick in slope, crest berm etc. of embankments, canals and drainage channels etc. within a lead of 150 metre and all lifts including fine dressing, watering, ramming, guarding etc. complete. (sods will have to be arranged by the contractor at his own cost. Payment to be made on the grown grass only).