Hyderabad Metropolitan Water Supply And Sewerage Board Tender

Desilting of Trunk sewers;Refilling with usefull available excavated earth / soils in trenches ,sides of foundations & basement and the pipeline trenches after laid, jointed, executed, tested with intial lead in layors not exceeding 15 cm thick , consolidating each deposited layer by watering consolidting each layer by watering and ramming including cost and conveyonce of water to work site and all operational ,incidental,labour charges,hire charges of T&P .,complete for finished item of work

Desilting of Trunk sewers;Reconstruction of Existing Damaged/Collapsed sewer manhole with standard cement bricks made with CM (1:2) prop; inclusive of PCC M20 prop; with Sulphate Resistant Cement using 20mm HG metal with SRC for benching, haunches and channels with inside plastering one coat of sulphate resistant CM(1:1) prop; 12mm thick, outside plastering of OPC in CM(1:1) prop; 12mm thick, the foundation concrete in CC (1:4:8) prop; using 40mm nominal size hard broken granite stone and supporting incoming pipes with concrete block/masonary wherever necessary including finishing the gap with CM (1:1) prop; on both the sides excluding supply and fixing of manhole frame and cover and Fiber encapsulated steps including supply and fixing of safety grills,cost and conveyance of all of materials and other incidential and operational charges etc., complete. Dia of 2100 m manhole For 1000 mm dia 8.25 to 8.50 m depth

Desilting of Trunk sewers;Plain cement concrete M20 grade concrete with Sulphate Resistant Cement using 20mm guage hard granite machine crushed metal, with a minimum cement quantity, with a minimum cube strength of 20 N/sqmm at 28 days age, , incluidng cost and conveyance of all materials to site, machine mixing, lifts and delifts, leads,form work, laying in position vibrating, compacting, curing, labour charges, tools & plants and all other incidental and operational charges etc., complete as directed by the departmental officers. for Bedding, Channeling

Desilting of Trunk sewers;Earthwork excavation and depositing on the bank in all types of soils like black cotton soil, red earth, and ordinary gravel, hard gravelly soils, mixture of gravel, soft disintegrated rock, hard disintegrated rock, Conglomerated rock , stoney earth and earth mixed with fair size boulders except rock requiring blasting with different lifts as per specifications and drawings and as directed by the departmental officers, including protecting the walls and other structures, existing water supply lines, sewers, power cables, telephone cables/ducts, storm water drains, traffic signals etc., wherever it is possible so as not to distrub the existing utility services etc., taking all precautionary measures in the restricted areas such as urban areas including diversion of the traffic, removal of stumps and other deleterious material and disposal upto a lead of 50 m, dressing of sides and bottom and excluding backfilling for laying sewer/ Water supply lines including all incidental and operational charges etc., complete for pipeline trenches - Excluding bailing out water. 3.00 Mts to 6.0 Mt depth below GL with Mechanical Means. (a) Where the depth is less than 1½ times width

Desilting of Trunk sewers;Reconstruction of Existing Damaged/Collapsed sewer manhole with standard cement bricks made with CM (1:2) prop; inclusive of PCC M20 prop; with Sulphate Resistant Cement using 20mm HG metal with SRC for benching, haunches and channels with inside plastering one coat of sulphate resistant CM(1:1) prop; 12mm thick, outside plastering of OPC in CM(1:1) prop; 12mm thick, the foundation concrete in CC (1:4:8) prop; using 40mm nominal size hard broken granite stone and supporting incoming pipes with concrete block/masonary wherever necessary including finishing the gap with CM (1:1) prop; on both the sides excluding supply and fixing of manhole frame and cover and Fiber encapsulated steps including supply and fixing of safety grills,cost and conveyance of all of materials and other incidential and operational charges etc., complete. Dia of 2100 m manhole For 1000 mm dia 7.75 to 8.00 m depth

Desilting of Trunk sewers;Collection supply and filling with HBG stone chips 2.36 mm and below . ( in trenches of foundations & basement and the pipeline trenches with intial lead in layors not exceeding 15 cm thick, consolidating each deposited layer by watering consolidting each layer by watering and ramming including cost of collection of sand and otehr required materials conveyonce of water to work site and all operational, incidental, labour charges, hire charges of T&P., complete for finished item of work

Desilting of Trunk sewers;Construction or Plastering of deep manholes for the depth of 7 to 9 Mts

Desilting of Trunk sewers;Reconstruction of Existing Damaged/Collapsed sewer manhole with standard cement bricks made with CM (1:2) prop; inclusive of PCC M20 prop; with Sulphate Resistant Cement using 20mm HG metal with SRC for benching, haunches and channels with inside plastering one coat of sulphate resistant CM(1:1) prop; 12mm thick, outside plastering of OPC in CM(1:1) prop; 12mm thick, the foundation concrete in CC (1:4:8) prop; using 40mm nominal size hard broken granite stone and supporting incoming pipes with concrete block/masonary wherever necessary including finishing the gap with CM (1:1) prop; on both the sides excluding supply and fixing of manhole frame and cover and Fiber encapsulated steps including supply and fixing of safety grills,cost and conveyance of all of materials and other incidential and operational charges etc., complete. Dia of 2100 m manhole For 1000 mm dia 8.50 to 8.75 m depth

Desilting of Trunk sewers;Carting away the surplus excavated materials i.e.Rock and Earth from the site to a suitable distance of about 10.00 Km including loading, unloading , conveyance charges and dumping the carted material at the contractors cost, labour charges, all leads & lifts and other incidental and operational charges etc., complete.

Desilting of Trunk sewers;Cutting of B.T Road surface including labour charges, all leads and other incidential and operational charges tool and plants etc. complete as directed by the deptl. Officers

Desilting of Trunk sewers;Providing the required diversion of flow by pumping and / or bypassing and to maintain the sewerage system functioning normal and managing the flow without any surcharging, overflows etc during the De-siliting / rehabilitation works of the isolated Sewer main. Sufficient no of pumps with requisite capacity and standby pumps along with a diesel generator and sufficient size of diversion pipe line to divert the flow from upstream manhole to downstream manhole of proposed desilting stretch including taking care of the daily peak flows so that the level in upstream sewer main is not headed up. The work is inclusive of all cost of material, safety equipment, labour and incidental charges and operational charges etc., complete as directed by the departmental officers.for 1000mm dia

Desilting of Trunk sewers;Reconstruction of Existing Damaged/Collapsed sewer manhole with standard cement bricks made with CM (1:2) prop; inclusive of PCC M20 prop; with Sulphate Resistant Cement using 20mm HG metal with SRC for benching, haunches and channels with inside plastering one coat of sulphate resistant CM(1:1) prop; 12mm thick, outside plastering of OPC in CM(1:1) prop; 12mm thick, the foundation concrete in CC (1:4:8) prop; using 40mm nominal size hard broken granite stone and supporting incoming pipes with concrete block/masonary wherever necessary including finishing the gap with CM (1:1) prop; on both the sides excluding supply and fixing of manhole frame and cover and Fiber encapsulated steps including supply and fixing of safety grills,cost and conveyance of all of materials and other incidential and operational charges etc., complete. Dia of 2100 m manhole For 1000 mm dia 8.75 to 9.00 m depth

Desilting of Trunk sewers;Temporary/permanent plugging and blocking of sewer line, branch connections and diversion of flows, Removing of plugs by various means such as providing MS Plate supported by sand bags, ballon method are any other suitable method to facilitate the desilting of sewer main with the approval of Engineer-in-charge such that there is no sepage from upstream/downstream to proposed stretch of sewer main cleaning including cost of material, labour incidental, operational charges, safety measures etc complete as directed by the departmental officers.for 1000mm dia

Desilting of Trunk sewers;Reconstruction of Existing Damaged/Collapsed sewer manhole with standard cement bricks made with CM (1:2) prop; inclusive of PCC M20 prop; with Sulphate Resistant Cement using 20mm HG metal with SRC for benching, haunches and channels with inside plastering one coat of sulphate resistant CM(1:1) prop; 12mm thick, outside plastering of OPC in CM(1:1) prop; 12mm thick, the foundation concrete in CC (1:4:8) prop; using 40mm nominal size hard broken granite stone and supporting incoming pipes with concrete block/masonary wherever necessary including finishing the gap with CM (1:1) prop; on both the sides excluding supply and fixing of manhole frame and cover and Fiber encapsulated steps including supply and fixing of safety grills,cost and conveyance of all of materials and other incidential and operational charges etc., complete. Dia of 2100 m manhole For 1000 mm dia 8.00 to 8.25 m depth

Desilting of Trunk sewers;Supply and delivery of FRC frame and cover including cost and conveyance etc complete EHD-35

Desilting of Trunk sewers;Loosen, de-silt and thoroughly clean and remove debris and objects such as boulders, bricks etc, bacteriological slimes, roots, encrustations, grease, carbonated deposits, etc and including removing of solidified silt/malba/debris any other material from the sewer main using high power suction machine of vacuum capacity of minimum 4000cum/hr and above including carting with leak proof enclosed containers (dumpers) and disposal of silt/debris/ malba/objects etc to the dumping site upto a maximum distance of 25KMs. The cleaned trunk main surface should be continues slope of invert avoiding hydraulic obstacles and for repairing of inner surface wherever it is damaged and possibility of future damages to ensure longativity of life time and for conducting CCTV survey. The work of de-silting should be a continuous process and should not be stopped for repairs of desilting / transportation equipments and desilting work shall be carried out by taking all safety precautionary measures and to the satisfaction of the departmental officers. In case of departmental objections after verifying the post CCTV camera inspection, the above procedure of desilting has to be repeated once again to clear the silt in the sewer main to the satisfaction of the departmental engineer. for 1000mm dia

Desilting of Trunk sewers;"Internal plastering of existing deep sewer manholes of 7 to 9 meters depth, including surface preparation, removal of loose material, and the work shall be carried out by providing and fixing scaffolding inside the manhole, ensuring safe access for worker with C.M (1:1) Prop in Sulphate Resistance cement 12 mm thick using natural river sand including cost and conveyance of all materials, all labour charges, Scaffolding, Curing and all other incidental and operational and operational charges etc., complete as directed by the departmental officers. Sewer manhole for 1000 mm dia pipe for 7.00 to 9.00 Mtrs depth."

Desilting of Trunk sewers;Supply and fixing of encapsulated plastic steps for manholes including cost and conveyance of all materials to site, labour charges, all incidental and operational charges etc., complete inside the man holes as directed by the departmental officers.

Desilting of Trunk sewers;Conducting Pre-CCTV /Post -CCTV survey to determine sewer alignment, levels, manhole positions along alignment, proximity of structures, measurement of exact length between manholes, invert level and survey with camera system having a pan and tilt, radial viewing, Pipe inspection camera that pans (±) plus or minus 275 degrees and rotate 360 degrees with zooming capability on vehicle mounted with video and submission of detailed report of status of pipe line with depth of silt at different locations on a drawing and average depth along with percentage of depth & quantity to be desilted, submission of video tapes or CDs and colour photographs at every 10m interval in two (2) sets. The work includes cost of all instruments, material, labour charges and inspection charges, incidental and operational charges etc., complete as directed by the departmental officer.

Desilting of Trunk sewers;Earthwork excavation and depositing on the bank in all types of soils like black cotton soil, red earth, and ordinary gravel, hard gravelly soils, mixture of gravel, soft disintegrated rock, hard disintegrated rock, Conglomerated rock , stoney earth and earth mixed with fair size boulders except rock requiring blasting with different lifts as per specifications and drawings and as directed by the departmental officers, including protecting the walls and other structures, existing water supply lines, sewers, power cables, telephone cables/ducts, storm water drains, traffic signals etc., wherever it is possible so as not to distrub the existing utility services etc., taking all precautionary measures in the restricted areas such as urban areas including diversion of the traffic, removal of stumps and other deleterious material and disposal upto a lead of 50 m, dressing of sides and bottom and excluding backfilling for laying sewer/ Water supply lines including all incidental and operational charges etc., complete for pipeline trenches - Excluding bailing out water. Up to 3.00 Mts depth below GL with Mechanical Means. (a) Where the depth is less than 1½ times width

Desilting of Trunk sewers;Reconstruction of Existing Damaged/Collapsed sewer manhole with standard cement bricks made with CM (1:2) prop; inclusive of PCC M20 prop; with Sulphate Resistant Cement using 20mm HG metal with SRC for benching, haunches and channels with inside plastering one coat of sulphate resistant CM(1:1) prop; 12mm thick, outside plastering of OPC in CM(1:1) prop; 12mm thick, the foundation concrete in CC (1:4:8) prop; using 40mm nominal size hard broken granite stone and supporting incoming pipes with concrete block/masonary wherever necessary including finishing the gap with CM (1:1) prop; on both the sides excluding supply and fixing of manhole frame and cover and Fiber encapsulated steps including supply and fixing of safety grills,cost and conveyance of all of materials and other incidential and operational charges etc., complete. Dia of 2100 m manhole For 1000 mm dia 7.50 to 7.75 m depth

Desilting of Trunk sewers;Barricading, hoarding, lighting and diversion of traffic, providing caution boards and watching for sewerage works including all incidental and operational charges etc., complete.