Chennai Metropolitan Water Supply And Sewerage Board Tender

Supplying,Delivery and Laying D.I pipes class K7 as per IS 8329/2000 with rubber gasget including earthwork excavation for trenches in hard stiff clay, black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil depositing the earth on banks with intial lead of 10m and initial lift of 2m carting the pipes from stores yard to the site of work lowering into the trenches, aligning, refilling the trenches with excavated soil, watering and ramming to consolidation, etc. complete for the pipes of following diameters (including back filling). as per schedule. (1.5m depth)

b. 100mm dia D.I.pipe @ 1.5m depth

Cutting D.I. mains (Labour only).

a. 100mm dia D.I.pipe

Supplying,Conveying and fixing of the following specials

a.100mm dia MJ collar

b. 100mm dia Sluice valve

c. 100 mm dia spigot tail piece

d.100 mm dia Socket Tail piece

e. 100 mm x 100 mm dia Tee

Making Rubber joints for D.I. pipes - Labour only.

a. 100mm dia D.I.pipe

Connection work to existing main including cutting existing pipe, fixing branches, collars, lead jointing and bailing out water, etc., excluding excavation.

Hire charges for diesel pumpset 7.5HP with fuel and operator charges including transportation.

Testing of D.I.pipes with hydrulic testing equipment by fillling with water and testing to recommended pressure in convenient sretches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges,etc., complete.

a. 100mm dia D.I.pipe

Construction of chamber for 100mm to 250mm dia. sluice valve including providing and fixing FRC cover and frame of size 60 x 60cm for size 1.35 x 1.2 x 1.55m

Boring and Tapping mains or Re-boring and Tapping main and fixing brass screw plugs or ferrules of sizes.

Supplying and laying of MDPE (PE80) Blue pipe (IS:4427) with necessary specials including earth work excavation laying jointing testing, refilling the trenches and disposal of surplus earth etc.complete.

a. Hire Charges for Power Breaker to dismantle the two side walls of SWD, side wall width 30 cm, flow width 2 m

b. Providing 50 mm dia PVC Casing Pipe across SWD

c. Earth work excavation and depositing on bank with initial lead of 10 meters and lift 2.00m in hard stiff clay stiff black cotton, hard red earth, shales, Muram,gravel, stoney earth and earth mixed with small size boulders S.S.20-B. Making two pits for insertion of MDPE pipes inside SWD

Supplying of quarry dust including compacting curing etc complete

Disposal of surplus excavated earth

Cement concrete 1:2:4 using Crushed stone sand (Msand)and 20mm gauge hard broken stone jelly for plain concrete works including laying ramming curing, etc.,

As built survey every sewage and water pipeline and other assetsmust be done using DGPS based RTK method by transferring the coordinates from the nearest static GCP of CMWSSB. Where there are signal interruption for the RTK method, Total station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co-odinates of the assets can then be captured by Total Station. All the features, attributes of all the assets, utilities captured shall be Geo reference as per standard coordinate reference system ( WGS 84 UTM Zone 44N). The final basemap with assets and utilities shall be furnished in (.shp) format. The geo reference assets and utilities along with the attributes (as specified by the GIS Wing, CMWSSB)shall be converted into proper geo database (FGDB/PGDB) with the attributes. One set Hard and Soft copy of all the CMWSSB assets and utility has to be prepared category wise network wise in A0 print for verification in a print scale of 1:1000 in A0 plot, with standard legends in international and NUIS standards and should be legible and three sets of final hard copy in A0 print. a.For the undergrond/surface assets along the roads for the distance ranging from: (2KM)

2 Km

b. For the Point Underground Surface Assets along the Road

Sub Total

GST @ 18%