Shifting and Replacement of 800mm dia PSC Pipe with 800mm Dia MS CWTM Pipe in between LS 5000m to LS 8800m from Nadur Tank Medu to TN 43 Hotel due to road widening works carried by State Highways Department between the SH Chainage 28/6 to 37/8 along

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Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2.00 m in narrow trenches for laying of pipes for water supply works in the following type of soil strata including shoring, strutting and all the incidential charges etc., complete and as directed by TWAD Board officers. a) Hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. SS20B

800mm Dia MS Pipe

Lowering the following sizes of MS pipes and specials into the trench and laying to proper grade and alignment upto 2 m depth and as directed by TWAD Board Officers.

800mm Dia MS Pipe

Jointing the following sizes of M.S Pipes & Specials by butt welding making small angular deviation including cost of all equipments such as power generater are welding machine, welding electrode, diesel, necessary gas cutting set transportation for epuipment and all other consumables and labour charges for skilled welders and helpers and confirming to I.S specificstion at site of work etc, complete for maintenance work and as directed by TWAD Board Officers.

800mm MS Pipe ( 12.00m Length )

Refilling with excavated earth (other than sand) in respect of following sizes of pipes in layers of 15cm thick, watered well rammed and consolidated etc. complete complying with standard specification for filling the trenches after the pipes and specials are laid, jointed and tested removing and spreading the surplus earth at the placed shown and as directed by the TWAD Board Officers.

800mm Dia MS Pipe

Dewatering using following diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete.

Jointing the MS pipes and specials with neat cement or cement mortar and spun yarn including caulking the joints, curing. (including cost of jointing materials)

800mm dia MS Pipes and Specials

Conveyance of pipe of various type/size of the following pipes including unloading from lorries at stock yard and stoking properly and loading into lorries at stock yard transportation charges upto 8 KM from stock yard and loading from lorries at site/along the alignment carefully and as directed by the TWAD Board Officers.

813 mm Dia x 7.1 mm thick MS pipe

Materials

Supply and delivery of MS pipe -spiral welded as per IS 3589/2001with internal lining and external coating made with FE 410 etc. complete including transporation changes from factory to work site and as directed by the TWAD Board officers. Pipes shall be internally lined with plant applied cement morter lining 1:2, The Lininig thickness range from 6mm to 12mm as per Table -8 of IS 3589:2001. Pipes shall be externally coated with plant applied CM 1:3, 20mm thick minimum including reinforcement as per clause A-9 of Annex -A of IS 3589:2001 and as directed by the TWAD Board Officers.

813 mm Dia x 7.1 mm thick MS pipe

Supply and Delivery of MS specials as per IS 7322-1985 without inside lining and outside coating including loading, transportation, insurance, unloading at site of work etc. complete and as directed by TWAD Board officers.

800mm Machine End Spigot

800mm Machine End Socket

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