Bengaluru Water Supply And Sewerage Board Tender

code04 - Earth work excavation for pipeline trenches in all kinds of soils by mechanical means as per drawing and technical specifications, including setting out, construction of shoring, strutting, barricading, caution lights, bracing, using sight rails & bonding rods at every 100 mm wherever necessary as directed, removal of stumps and other deleterious matter, dressing of sides and levelling the bottom of trench to the extent required , utilising the available excavated earth locally for the work etc., and all other appurtenances complete in the following strata.- All kinds of soil depth upto 1.5m

code05 - Depth exceeding 1.5 m, but not exceeding 3 m

code06 - Earth work excavation for pipeline trenches by mechanical means as per drawing and technical specifications, including setting out, construction of shoring, strutting, barricading, caution lights, bracing, using sight rails & bonding rods at every 100 mm wherever necessary as directed, removal of stumps and other deleterious matter, dressing of sides and levelling the bottom of trench to the extent required , utilising the available excavated earth locally for the work and all other appurtenances to complete in the following strata. Ordinary/soft rock (without requiring blasting) Depth upto 1.50m

code07 - Depth exceeding 1.5 m, but not exceeding 3 m

code08 - Earth work excavation for pipeline trenches by mechanical means as per drawing and technical specification, including setting out, construction of shoring, strutting, cost of blasting materials, barricading, caution lights, bracing, using sight rails & bonding rods at every 100 mm wherever necessary as directed, removal of stumps and other deleterious matter, dressing of sides and levelling the bottom of trench to the extent required , utilising the available excavated earth locally for the work and all other appurtenances to complete in the following strata.Hard rock (blasting prohibited) Depth upto 1.50 m

code09 - Depth exceeding 1.5 m, but not exceeding 3 m

code10 - Excavation of Hard Rock by diamond rope cutting method using diamond rope,line draw machine,making holes by drilling machine for breaking the block by means of hydraulic breakers/splitters without any means of blasting or use of explosives,etc.,complete as per specification and directions of the Engineer-in-Charge.

code11 - Refilling available earth around trenches/pipelines, cables in layers not exceeding 20 cms in depth, compacting each deposited layer by ramming after watering with a lead upto 50 m , and lift upto 1.5 m. Including cost of all labour complete as per specifications

code12 - Carting of excavated earth of all types upto a distance mentioned below and re-carting back the eath to the same site by vehicle including loading, unloading charges for to & fro, with all lifts, labour, HOM of machinery etc. complete, after obtaining the approval of the Chief Engineer, for:Distance 4 to 5 km

code13 - Removal of Unserviceable Soil with Disposal upto a suitable distance as directed by the Engineer incharge of work

code14 - Dewatering the sewage / storm water by using reqired HP submersible pump for the diversion of storm / sewage during the execution of work. Considering for one Pump. 5 hp pump

code15 - Providing Bedding or Backfilling using approved stone dust /quarry dust of size not exceeding 5.6 mm for the pipe line trenches including watering and consolidation etc., complete with all lead and lifts as per specification and as directed by the engineer incharge, after obtaining the approval of the Chief Engineer.

code16 - Providing, erecting and removing casurina pole three tier BARRICADING using poles of 7.5 to 10 cms dia. and 1.5M height above ground fixed vertically at intervals of 2.0 to 2.5 M centre to centre and horizontally at 0.5M above ground level, including fixing poles in ground for a maximum depth of 0.3M and tied with coir rope firmly including cost and conveyances of all materials, labour, lead and lifts charges etc. complete.

code17 - Providing and installation of Class SN8 Double Wall Corrugated HDPE pipe outer wall corrugated and inner wall smooth piping system in accordance with IS 16098 part 2 and conveying to work site and lowering into trenches, laying true to line and level and perfect linking at joints with the help of two "O" rings and a coupler of suitable size, including loading and unloading at both destination and cutting of pipes where ever necessary including jointing with all labour, all lead and lift including encasing the pipe around to a depth of not less than 15 cm with screened soft soil available from the excavated soil. The testing commissioning including necessary hydraulic test to the required pressure as per ISS shall be done the contractor shall have to make his own arrangement for procuring water for testing etc. complete. - 300 mm dia

code18 - Construction of RCC Machinehole chambers of 1:1.5:3 proportion orapproved type Cast-insitu / Pre-cast RCC Machinehole chambers, constructed using form vibrators of standard type, with barricading, danger lighting and using of sight rails and boning rods wherever necessary, shoring and strutting wherever required using Ordinary Port Land Cement, using 1:1.5:3 proportion RCC with 20 mm and down graded jelly, well graded sand and steel of approved quality, 200 mm thick top concrete slab, having wall thickness and raft thickness as in approved drawings and with an offset in raft alround the chamber as in approved drawing, benching concrete with 1:6 slope towards the central drain finished smooth, including fixing and grouting of pipes, including conveying to work spot supply and fixing SFRCMachinehole cover and frame (Heavy duty) conforming to IS:12592 with latest amendments, on a bed of CC 1:2:4 supplying and fixing of minimum 3 mm thick encapsulated plastic footsteps (as per IS 10910) on 12 mm dia.Grade Fe-500 steel bar (as per IS 1786) staggered at 300 mm apart as detailed in Technical specifications, including stone grit beding wherever required, watering, curing, engraving Machinehole number with flow direction on the inner cylindrical surface etc., complete including cost of reinforcement steel and fabrication charges and also cost and conveyance of all materials, labour with all lead and lifts. The Pre-cast RCC Machinehole are for various diamtersand depths as stated below and as per detailed drawings, specifications and direction of the Engineer. For 1.2m dia Machinehole:- Constructing Pre-cast RCC Machinehole 1.2 m internal dia. , 1.0 M depth & SFRC cover & frame

code19 - For every additional depth of 0.1m upto 1.3m

code20 - Constructing Pre-cast RCC Machinehole 1.2 m internal dia. , 1.3 M depth & SFRC cover & frame

code21 - For every additional depth of 0.1m upto 1.6m

code22 - Constructing Pre-cast RCC Machinehole 1.2 m internal dia. , 1.6 M depth & SFRC cover & frame

code23 - For every additional depth of 0.1m upto 1.9m

code24 - Constructing Pre-cast RCC Machinehole 1.2 m internal dia. , 1.9 M depth & SFRC cover & frame

code25 - Constructing Pre-cast RCC Machinehole 1.2 m internal dia. , 2.0 M depth & SFRC cover & frame

code26 - For every additional depth of 0.1m upto 3.0m

code27 - Constructing Pre-cast RCC Machinehole 1.2 m internal dia. , 2.0 M depth & SFRC cover & frame

code28 - Providing and laying in position Cement Concrete for levelling course for all works in foundation. The granite/trap/basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed, laid in layers not exceeding 150 mm thickness, well compacted using plate vibrators, including all lead & lifts, cost of all materials of quality, labour, Usage charges of machinery, curing, and all the other appurtenances required to complete the work as per technical specifications. -Mix 1:3:6 Using 20 mm nominal size graded crushed coarse aggregates

code29 - Providing and laying in position Cement Concrete for all Sub structures of building, Irrigation works, Sub structure works of bridges, Drain works &other parallel works from 0.50m to 3.50 m height. The granite/trap/basaltcrushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed with super plasticisers, laid in layers, well compacted using needle vibrators, providing weep holes wherever necessary, including all lead & lifts, cost of all materials of quality, confirming to the requirements of relevant IS codes, labour, Usage charges of machinery, curing and all other appurtenances required to complete the work as per technical specifications M20 Design Mix Using 20 mm nominal size graded crushed coarse aggregates

code30 - Extra for Additionalties for Formwork, centering and scaffolding a. Foundation, Sub structure of cross drainages

code31 - Supplying, fitting and placing TMT FE 550 / 550D Steel Reinforcement including cost of all materials, machinery, labour, cleaning, straightening, cutting, bending, hooking, laping/welding joints, tying with binding wire / soft annealed steel wire and other ancilary operations complete as per drawing and technical specification. All other type of structures

code32 - Providing and installing at site of work PVC pipes including cost of pipes and specials and labour, including lowering into trenches, laying true to line, level and perfect linking at joints leak proof including jointing of approvedtype with all labour charges and all lift charges, handlig charges including encasinng the pipe around to a depth not less than 15cms with gravel or select earth available from tyhe excavation etc complete.., 110mm (weigth opf pipe- 1.894 Kg)

code33 - HSC Using Prime Gromhat Gasket including Prime Gromhat Gasket cost & Making borehole in DWC pipe and Fixing of Grommet

code34 - Supply and delivery at site special moulded variety PVC elbows as per IS 7834/ 1987 and fabricated as per IG124/ 1984 with ISI mark with its latest amendments-110 mm dia PVC Elbows

code35 - Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead- By Mechanical Means-Prestressed / RCC grade M-20 & above

code36 - Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead- Dismantling Stone Masonry By Manual means-Rubble stone masonry in cement mortar.

code37 - Installation of product pipe by manual jacking method - Manufacturing, providing, transporting, rolling, lowering, laying & jointing, testing, commissioning of ERW (Electric Resistance Welded), SAW (Submerged Arc Welded) MS pipe (Fe-410 grade) conforming to IS 3589-2001 with latest ammendments including perfect linking welding of joints to correct position including cost and conveyance of pipes and materials with all lead ,lift, cost of labour, loading and unloading of pipes for the following diameters with specified thickness of plate as noted below including bailing out of water wherever necessary for laying of carrier pipe of suitable dia including inside and outside of casing pipe painted with two coats of Anti corrossive tankmastic paint. Installation of steel pipe by Ramming / Jacking method to cross Railway track / NH /BDA /BBMP/ Other roads/Existing utilities / NALA crossings, filling the gap between casing pipe and carrier pipe with quarry grit using compressor with all necessary equipments, plants etc, complete. Suitable spacers of HDP/ MS or other similar material should be provided in between carrier & casing pipe to prevent carrier pipe forming metallic contact with casing pipe. Note : a. The cost of jacking is inclusive of cost M.S. casing pipe of specified thickness b. The cost of carrying pipe is separate and provision shall be made as per site requirement c. The cost of Jacking includes all leads lifts, cost of consumables, fuel charges, labour. d. The cost of jacking and receving pits shall be proposed seperatelly as per site requirement.-Jacking of 900 mm dia & 10mm thick M.S. Casing pipe

code38 - Excavating of ramming/jacking/driving pit and receiving pit of size 5.00m(length) x 3.00m (breadth), up to 6.00 m depth in all soil strata including shoring and strutting including cutting of Asphalt/CC/Macadam road surface and removing the excavated stuff with all lead and lifts. The work includes formation of CC/RCC of 1:3:6 with or without 20mm steel with suitable spacing. The work also to receive the impacts driving pushing operation of encasing pipe. The cost includes driving the horizontal bore by pushing/jacking methods (trenchless technology method) by using construction agencies' cranes, jacks, jacking materials, generator, welding machineries, compressor, jack hammer and other equipments etc., without interfering and causing any hindrance to the movement of traffic or any other vehicles, without any disturbances to the railway/road/canal formation etc., The cost also includes bailing / pumping of water where ever necessary without affecting any installation like water supply and sanitary pipeline/telephone cable, electric cables etc. The work comprises of water for curing, carriage and fixing charges, concrete up to plinth for erecting and conducting the hydraulic pushing arrangements apart from passing through and scooping the earth inside the pipes and pit and depositing and disposing the surplus earth to a designated/ approval place and levelling the site after completion of entire work as directed by Engineer in Charge. The rate is excluding the cost of MS pipes.-Size up to 5 mts X 3 mts - depth up to 4 mtrs

code39 - Providing Bedding or Backfilling using approved stone dust /quarry dust of size not exceeding 5.6 mm for the pipe line trenches including watering and consolidation etc., complete with all lead and lifts as per specification and as directed by the engineer incharge, after obtaining the approval of the Chief Engineer.

code40 - Construction of Granular Sub-Base of required grading as per design mixing in a mechanical mix plant at OMC, carriage of mixed Material to work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per clause 401(MORTH Specification No) For Grading -V Material

code41 - Providing, laying, spreading and compacting graded stoneaggregate to wet mix macadam specification includingpremixing the Material with water at OMC in mechanical mixplant carriage of mixed Material by tipper to site, laying in uniform layers with paver/grader in sub-base / base course onwell prepared surface and compacting with vibratory roller to achieve the desired density.MORTH Specification No. 406