Revamping of existing underground drainage line at Karumbalai areas ward 31 KK Nagar pumping line in ward 33 SMP colony area in ward 34 zone 2 Madurai Corporation

Amount

Construction of manholes using sulphate resistant cement at various depths to invert including earthwork excavation as per SS 20B, laying cement concrete in C.M. 1:3:6 using 40mm B.G.jelly for foundation, sinking well kerb below G.L. for 4.5m depth and above, pumping, timbering charges for 2.5m depth and above, stock brick work in C.M. 1:3, for 23cm thick wall and over 23cm thick wall, plastering interior with C.M. 1:3, 20mm thick and exterior with C.M. 1:3, 12mm thick, laying plain cement concrete 1:3:6 using 12.0mm to 20mm B.G.jelly fixing the frame, providing C.I. steps, manhole cover and frame, benching and channelling including refilling the trench with excavated earth and disposal of surplus earth etc. complete for the following sizes for each manhole (As per the type design drawing for manholes). Karumbalai Middle Street Depth 1.50m to 2.00m

Depth 2.00m to 2.50m

Depth 2.50m to 3.00m

Depth 3.00m to 3.50m

Karumbalai North Street Depth 3.00m to 3.50m

Karumbalai East Street Depth 2.50m to 3.00m

Depth 3.00m to 3.50m

K.K.Nagar West 4th Street Depth 3.50 to 4.00m

Depth 4.00 to 4.50m

Depth 4.50 to 5.00m

K.K.Nagar West 80 Feet Road Depth 5.00 to 5.50m

Elango Adikal Street Depth 1.50m to 2.00m

Depth 2.00m to 2.50m

Depth 2.50m to 3.00m

SMP Colony Depth 0.90m to 1.00m

Depth 1.00m to 1.50m

Depth 1.50m to 2.00m

Cutting the existing BT Road surface the debris clearing away from the site etc.complete..,

Cutting the existing CC Road surface the debris clearing away from the site etc.complete..,

Removing the Existing Paver block M40grade 80mm thick & 60mm thick in the the rate including Removing and Stock to the Same Site and tranporting loading unloading and Labour Charges and Other tools etc.complete as per standard specification,.

Earth work excavation for foundation & depositing on bank with an initial lead of 10m & lift of 2 m for depths in soft disintegrated Rock when required, barricading with safety lamps etc all complete as per standard specification as directed by the Departmental Engineer.

Dewatering the trenches during excavation and laying jointing of sewers by engaging diesel pumpset upto 3 hp with fuel, crew, hire charges, transportation and all other items of work complete as per standard specifications and as directed by Engineer in charge.

Supply and Delivery of DWC Structured Wall Polyethylene Piping Systems (Pipe with online/offlinecoupler and elastomeric sealing ring) with required specials non-smooth external annular corrugated and smooth internal surface (Double wall) (SN 8 Class) for non-pressure underground sewerage, drainage application generally as per IS- 16098 (Part-2) type B. 300mm ID SN 8 pipe

Lowering PVC/ DWSC rigid pipes and specials to trench and laying to proper grade and alignment, jointing with PVC couplers with cement paste.

Supply of C.I. SPUN PIPES AS PER IS 1536/2001 Amendment No.3.July 2008 A Class

Jointing the C.I/ D.I Double flanged pipes and specials with rubber insertion to with IS- 638(1979) and M.S. bolts and nuts of IS 1364-1 (2002), including cost of jointing materials such as bolt and nuts Rubber insertion and labour charges etc., complete. (300 mm dia C.I/ D.I Double flanged pipes and specials)

Lowering of C.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers

Refilling the trenches with suitable excavated earth available along the alignment after the pipes & specials are laid, jointed & tested in layers & watering, ramming & consolidation directed by the Engineer-in-Charge

Carting of excavated surplus soil away from site including cost for all items of work, men, materials, machinery, equipment as per standard specification and as directed by Engineer-in-charge

Barricading work ( Where , there is less traffic areas and broader roads etc.) for laying of pipe line using casurina poles at 1.50 m center to center ( 8 cm to 10 cm dia and 1.80 m height) Vertical with horizontal poles in three rows including painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including fixing charges and fixing 75 mm dia reflectors including earth work excavation for fixing vetical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by TWAD Board Officers.

Supply and delivery of submersible centrifugal sewage non-clog pumps, vertical spindle type pump , wear resistance with submersible motor for the various duty conditions. Pump shall be capable of handling min 100 mm solid size withsewage specific gravity of up to 1.05. Pump shall be of robust construction, Liquid passages shall be finished smoothand designed as to allow free passage to solids. Pump Impeller should be of Non-clog semi open type , single vane /multi vane preferably contra bloc or vortex impeller design. Double mechanical seal with silicon carbide faces should beprovided to protect the motor from ingress of sewage along the shaft. The critical speed of the rotor shall be at least 30% above the operating speed. Pumps should have double bearings between the pump & motor. The bearings life shall be minimum 100,000 hrs of operation with greased for life. Pump should be provided with automatic coupling device including pedestal, duck foot bend, stainless steel guide pipe or related accessories of suitable size to facilitatelifting and lowering into guide rails for easy maintenance. Pump shall be provided with a stainless steel lifting chainconforming to BS 970 Gr 304. Pump speed shall be of 9600 rpm for high duty pumps and 960/1450 rpm for low dutypumpsets. Casing and impeller should be of CI Gr. FG 260 :IS210 more preferably with hardened impeller.Shaft shouldbe of stainless steel AISI 410. All the fasteners and bolts shall be of AISI 410.The submersible motor shall be operatedwith 3ph, 415 V(+or– 10%), 50Hz(+or-5 %) dry induction type. Motor shall be capable of giving rated output withoutreduction in the expected life span when operated continuously. The rotating assembly shall be dynamically balancedas per standards. The starting current of the motor shall not exceed 200% of rated full load current for Star / Delta orATS starting under any circumstances .The motor shall be suitable for full voltage star delta / ATS starting. The lockedrotor current of the motor shall not exceed 600% of full load current unless otherwise specified. Motor shall bedesigned to withstand 120% of rated speed for two minutes without any mechanical damage, in either direction of rotation. The motor vibration shall be within the limit specified in applicable standards . Motor should be of IE2,explosion proof compatible for VFD operation together with star-Delta /ATS starter, protection against increase instator winding temperature (15 deg Celsius), bearing temperature, leakage in the stator housing and terminal box shallbe provided and to be suitably interlocked with the control panel for tripping the pump in case of increase intemperature beyond set limit.Insulation class shall be of “Class H” and degree of protection shall be of IP 68 as per IS 4691. Motor shall be suitablefor continuous operation in fully submerged or partially submerged condition.The pumpset shall be supplied with powercable of PVC insulated and PVC sheathed, copper, flexible, round type with required conductor size and number ofcores as per starting method and of specified length for continuous use under water and air. The control cable of PVC insulated, PVC sheathed, flexible for stator winding temperature sensor 3core x 1.5 sq.mm copper conductor and for bimetallic switches 2core x 1.5 sqmm copper conductor shall be provided. Motor shall be supplied with 10m of round submersible copper cable of suitable size. The non clog submersible pumpset shall be provided with suitable starter control panel having all protections as mentioned above. (upto 5 HP - DOL Starter, above 5 HP to 25 HP -Star Delta Panel and beyond 25 HP shall be ATS) 130

Add GST 18%

M/s. LUCKY ASSOCIATES