NIT 7 (25-26)HP-II / Item 3

Hydraulic Excavator (3D) with driver and fuel. (DJB SOR(E&M)’24-25 26.1.1) (1 No. X 24 Hours + 1 No. X 12 Hours)

Hiring charges of Rock Breaker for Hydraulic Excavator (3D) with driver and fuel. (MR)

Hire and running charges of Long boom crane 20 tonne capacity. (DJB SOR(E&M)’24-25 26.1.2) (1 No. X 24 Hours + 1 No. X 12 Hours)

Hiring of 100/125 KVA heavy duty DG Set at site with fuel and operator. (DJB SOR(E&M)’24-25 26.1.3)

Supply of CI, Double Flanged, Dual Gear Box Operated, PN – 1.0, Diameter – 800 mm Butterfly Valve. Make – Upadhaya

Supply of 800 mm dia. MS pipe having length of 7 Mtrs. made out of 8 mm thick M.S. Sheet. & MS Plate of 1.5 Mtrs (L) X 1 Mtr. (W) & having 14 mm thickness (DJB AR) (Actual weight will be paid)

Supply of 01 No. Socket of 960 mm (ID),150 mm (L), 18 mm (T) & 01 No. Spigot of 940 mm (ID),100 mm (L), 16 mm (T) & 02 Nos. 898 mm dia. (OD), 890 mm dia. (ID), 24 Nos. Holes Flat Face/SW Flange made out of 25 mm thick MS Sheet. (DJB AR) (Actual weight will be paid)

Pumping out water caused by springs, tidal or river seepage, broken water mains or drains and the like. (DJB SOR(E&M)’24-25 26.1.27) (Actual will be paid)

Welding by gas or electric plant including transportation of plant at site etc. complete. (DJB SOR(E&M)’24-25 26.1.5) (Actual will be paid)

Excavating the site by breaking bitumen road using JCB & JCB Rock Breaker will be done to reach to the line. After reaching to the line & having shutdown of 1500 mm dia. West Delhi Main or by closing the existing old 800 mm dia. sluice valve whichever will be feasible, window in the existing 800 mm dia. PSC line will be cut & submersible dewatering pumps will be inserted using Hydra Crane to dewater the line. After dewatering the line completely, existing one number PSC pipe piece will be cut at both ends & will be taken out from the existing pipe using Hydra Crane. In the meantime, making of both flanges compatible with the butterfly valve, socket & spigot joints for the MS & PSC joints will be made & jointing of the flanges with the MS pipe pieces & jointing of the socket & spigot joints with MS pipe pieces will be done. Now fitting of the butterfly valve with both side flanges using nut bolts & washers & rubber sheets will be done. Now the total MS piece arrangement including butterfly valve & socket spigot fitted put down at the site to fit with the existing PSC pipe. To do that cutting for collar joints & windows in both sides i.e. socket & spigot sides will be made. Now after fitting both socket & spigot end & then butterfly valve with flanges & then fitting of the collar joints & closing of collars & windows will be done. After completing that butterfly valve will be made open for testing. Simultaneously existing old sluice valve chamber will be broken from roof side & cutting of the existing nut bolts of the dome joints of the existing valve will be done & after cutting completed, upper dome of the valve along with flap & spindle arrangements will be taken out from the valve body using Hydra Crane. After that MS plate of suitable size will be cut as per the opening of the valve body & will be fitted above the lower dome with nut bolts & washers & rubber sheets to make the existing valve dead. Now after starting 1500 mm dia. West Delhi Main checking of the sites will be done if there is any leakage & if the working of the valve i.e. opening & closing is proper or not. After completing these restorations of the old valve side completely & part restoration of the new valve fitted side will be done using JCB except making of the new butterfly valve chamber. During total process of work dewatering will be done using submersible dewatering pumps as & when will be required. (Justified Rate)

Making of Valve Chamber: - Brick work with common burnt clay F.P.S. (non-modular) bricks of class designation 7.5 in foundation and plinth in: DSR’21 6.1 Cement mortar 1:6 (1 cement: 6 coarse sand). (DSR’21 6.1.2)

Making of Chamber: - 12 mm cement plaster of mix: DSR'21 13.1 1:6 (1 cement: 6 fine sand) (DSR'21 13.1.12)

Making of Valve Chamber: - Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level: (DSR’21 4.1) 1:4:8 (1 Cement: 4 coarse sand (zone-III) derived from natural sources: 8 graded stone aggregate 40 mm nominal size derived from natural sources) (DSR’21 4.1.8)

Making of Valve Chamber: - Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level: (DSR’21 4.1) 1:2:4 (1 cement: 2 coarse sand (zone-III) derived from natural sources: 4 graded stone aggregate 20 mm nominal size derived from natural sources) (DSR’21 4.1.3)

Making of Valve Chamber: - Steel reinforcement for R.C.C. work to prepare of the chamber. (DJB AR)

Making of Valve Chamber: - Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. (DSR’21 2.8) All kinds of soil. (DSR’21 2.8.1)

Making of Valve Chamber: - Providing & Fixing of Steel Fibre Reinforced Round Shaped Concrete SFRC Manhole Cover. (MR)

AJ and SK Construction (BID ID -1617458)