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Tender For Construction Of Dhawra Jhiri Mst Tehsil Chhipabarod District Baran - Excavation including loading, unloading, disposal and dressing of excavated earth within initial lead of 50m and lift up to 1.5m including dressing of excavated area and dewatering wherever required complete in all respect Hard soil mixed with Kankar / boulders, Morrum 2 Extra labour charges for RCC due to obstruction in laying and placing the reinforced cement concrete due to reinforcement In foundation rafts, beams, columns bases stilling basins, buckets, aprons etc. (non suspended horizontally laid mass concrete) 3 Side shuttering including propping etc. complete (to achieve finish F 2 for 10.1.1 Block joints of foundation stilling basins buckets, aprons etc.(non -suspended horizontallylaid mass concrete) 4 Side shuttering including propping etc. complete (to achieve finish F 2 for Retaining wall, counterfort, abutment, wing walls up stream or down- stream slope facings of dams and open faces of construction joints etc. 5 Supplying of M.S. reinforcement including labour charges for bending binding and placing in position all reinforcement as per drawing including cost of binding wire and all leads and lifts using. Tor or ribbed bars (IS :1786) 6 Drilling 35mm to 48 mm dia holes in all types of rock or artificial hard material like concrete or masonary for consolidation/ curtain grouting in stages by percussion drilling including cost of drilling equipment, compressed air, water etc. completere-drilling in the hole through set grout, if required. Up to 5 m depth 7 Drilling 35mm to 48 mm dia holes in all types of rock or artificial hard material like concrete or masonary for consolidation/ curtain grouting in stages by percussion drilling including cost of drilling equipment, compressed air, water etc. complete & re-drilling in the hole through set grout, if required.From 5 to 10 m depth 8 Supplying and lowering into holes and fixing of casing pipes of suitable diameter to enable drilling of minimum 48 mm dia grout holes. 9 Washing and open flushing of drilled holes by alternate jet of air and water under pressure prior to pressure washing and flushing or grout after stage grouting including cost of equipment, compressed air and etc. complete. 10 Normal pressure washing of drilled hole in stages in approved pattern for cleaning of clay, soil and other filler materials from the seams and joints in the foundation rock by establishing connections under pressure with airandwater including cost of equipment, accessories compressed air, water, labour, admixtures if any required etc. complete as per specification. 11 Conducting water intake test in test holes under pressure for determining permeability before or after grouting including cost of equipment and water etc. complete 12 Excavation including loading unloading disposal and dressing of excavated rock within initial lead of 50m and lift upto 1.5m in dry or moist including dressing of excavated area, de-watering wherever required complete in all respect (d)Hard rock (dry or moist) requiring blasting (where hardness of rock is more than 2) including disposal of excavated material in the designated spoil bank / embankment, dressing of excavated material and dewatering with all leads & lifts of excavation and disposal. The contractor is free to use the usable excavated stone else where for which any transition expenditure & royalties, tax etc if required to be paid then it will be liability of contractor as the cost of usable stone has already been deducted from the rate 13 Grouting of drilled holes minimum 35 mm dia with or without packers with cement/ clay and or chemicals (in the form of slurry with water) in prescribed ratio till refusal including cost of grouting equipment, compressed air and water etc. complete but excluding cost of cement, clay and chemicals (only dry weight of ingredients excluding chemicals to be considered ) with a working pressure upto 15 kg/Cm2 (Dry cement consumption) 14 Cement OPC (in bags) 50 Kg in weight. As per IS 1489 and IS 8112 (excluding cost of empty bags). 15 Refilling the excavated earth (excluding rock) in trenches, plinth side of foundations etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering including cost of water, loading and un-loading wherever required with cost of dewatering wherever requiredExtra lead over item no 5.1.1 to 5.8.3 of excavated material. Beyond initial lead of 50 mandupto 250 m 16 Supplying stone, spall and laying Rip rap in required profile properly hand packed using stone of specified size including all lead & lifts (a) 23 cm thickness (plus minus5 % thickness tolerance) 17 If required as per site,add extra over rate of concrete work with the permission of Superintending Engineer, Rs 175.00 per cum of concrete if computerised mobile transit mixer (i.e Fiori) is used. 18 Excavation including loading unloading disposal and dressing of excavated rock within initial lead of 50m and lift upto 1.5m in dry or moist including dressing of excavated area, de-watering wherever required complete in all respect. Soft / Disintegrated rock 19 Watering of earth including cost of carriage of water when source of water is (a) up to 1 Km Watering of earth including cost of carriage of water when source of water is (b) Beyond 1 Km but up to 5 Km extra per Km. 20 Supplying and laying sand of grade as per design requirement in required profile including all lead & lifts.This item is to be used only for laying filter / inverted filter 21 Supplying and laying aggregate in layers and profile as specified including all leads & lifts. This item is to be used only for laying filter / inverted filter(d) River gravel 20 to 40 mm size 22 Providing, laying and fixing in position RCC spun or hume pipe with collars (ISI 458-2003) in required size packed in gasket for hume or spun yarnandneatly finished with rich grout of cement mortar 1:3 perfectly air tight including testing of joints. (diametre) 150mm ( Excluding Labour Charges ) NP-3Providing, laying and fixing in position RCC spun or hume pipe with collars (ISI 458-2003) in required size packed in gasket for hume or spun yarnandneatly finished with rich grout of cement mortar 1:3 perfectly air tight including testing of joints. (diametre) 150mm (Labour Charges only) 23 Final excavation by line drilling including removing of hard rock by wedging and barring and chiseling near final levels (only upto 0.3 m depth) without resorting to blasting including dewatering, disposal of excavated material within initial lead of 50m and lift of 1.5m complete in all respect 24 Grid survey at interval of 30 x 30 meter to conduct submergence survey with TS / DGPS instrument and prepare 0.50 m interval contour plan and superimposing over khasra map including all ancillary works as described in specifications and conditions of contract.Note: Khasra map will be provided by department Marking of existing FRL, MWL, MDDL contours and dam alignment. Prepare area-elevation and storage -elevation curves and tables. 25 Geological investigation (where directed) Checking of retrogression below spill arrangement, logging of bore log, rock strata classification, suitability of structure foundation and suggesting remedial measures for control of excessive seepage from foundation or body of the dam etc. by the Geological expert having experience more than 15 years and submission of final report. 26 Procurement /collection of soil samples and filling in containers/ boxes and transporting from site to laboratory for testing with all leads & lift complete including all charges and indicating location of borrow area on Index Map 27 Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3mm thick water proofing membrane, black finished reinforced with non-woven polyester mattconsisting of a coat of bitumen primer for bitumen membran @ 0.40 Itr/sq.mt. by the same membrane manufacture of density at 25°C, 0.87-0.89 kg/ltr and viscosity 70-160 cps. Over the primer coat the layer of membrane shall be laid using Butane Torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under Joint strength in longitudinal and transverse direction at 23°C as 650/450N/5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D-5147. The laying of membrane shall be got done through the authorized applicator of the manufacturer of membrane.3 mm thick 28 Compaction of earth or highly weathered strata By mechanical equipment such as sheep foot roller/ pneumatic tyred roller/ vibro compactor / vibro sheep foot compactor required as per site condition to obtain dry density of. (ii) at least 98% of Standard Proctors density 29 Earth work in rough (borrow area) excavation for embankments in hard soil, morrum or highly weathered strata dry or moist, including laying in 20 cm layers (before compaction) and breaking of clods, sorting of grass, pebbles etc. and dressing when compacted by vibro compactor, vibro sheep foot roller, sheep foot roller/pneumatic tyred roller to obtain dry density of at least 98% of Standard Proctors density with initial lift of 1.5m (Excluding charges for compaction and watering) including loading and un-loading wherever required complete in all respect.(b) With lead beyond 250 m and up to 750 m (1/2 Km) 30 Preparation of foundation of structure including removal of all loose stones, silt and final washing. By manual labour 31 Drilling holes of 35 mm diameter for anchor rods. Upto 1.50 m depth 32 Labour charges for Fixing of anchor bars in neat cement grout including cost of cement and curing etc. complete 33 Supply of Tor steel anchor bars of required diameter, length and shape at site of work complete. 34 Providing and Laying in position of Cement concrete Design mix M-15 including leads of all construction materials, plasticizers (if required), curing, compaction and finishing with rendering in cement sand mortar 1:3(1 cement : 3 coarse sand) and making good the joints excludingthe cost of centering, shuttering and reinforcement. Well graded crusherbroken stone aggregate of maximum size upto; (For mix design Cement content considered 320 kg/ cum of concrete) 20 mm 35 Providing and Laying in position of Cement concrete Design mix M-25 including leads of all construction materials, plasticizers (if required), curing, compaction and finishing with rendering in cement sand mortar 1:3(1 cement : 3 coarse sand) and making good the joints excludingthe cost of centering, shuttering and reinforcement. Well graded crusherbroken stone aggregate of maximum size upto; (For mix design Cement content considered 420 kg/ cum of concrete) 20 mm
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