AMRUT 2.0 - Underground Sewerage Scheme(UGSS)

Amount

Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 M in narrow trenches having bed width 1.25m & below for laying of pipes for water supply and sewerage works in the following type of soils as directed by Departmental officers - 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

0-2m Depth

2-3m Depth

0-2m Depth

CI Pipe (100&150)

0-2m Depth

Earth Work excavating and depositing on bank with intial lead of 10m and initialy lift of 2m in soft disintegrated rock laterite, soft rock or kankar, not requring blasting.

3-4m Depth

4-5m Depth

Supply and Delivery of the following pipes for laying sewers

150mm DWC Pipes

200mm DWC Pipes

Supplying and filling with stone dust for bedding for a thickness of 10cm and back fill envelope for a thickness of 150mm above the crown of the pipe for DWC PE pipes including ramming, consolidation etc., complete

Bedding,side fill, top envolop fill-pipe Volume.

Lowering DWC pipes into the trenches and laying to proper grade and alignment and Jointing of DWC pipes with elastomeric rubber O rings including cost of lubricants (including cost of jointing materials), r etc. complete as directed by the Engineer in Charge

150 mm DWC Pipes

200 mm DWC Pipes

Cutting DWC/P.V.C. rigid pipes and specials true to axis and finishing the ends complete

150mm DWC Pipes

200mm DWC Pipes

Barricading work (Where, there is less traffic areas and broader roads etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia and 1.80m 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 75mm dia reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by TWAD Board officers.

Barricading work (Where the lines are in narrow width of municipality area, busy streets like Market, Bus-stand and in the Highways etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia. and 1.80m height) vertical with horizontal poles in two rows, painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including supplying, delivery and fixing of GI sheet (0.90m x 0.8mm thick) in the horizontal poles and fixing 75mm dia. reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by Departmental officers.

Labour for cutting BT road for laying water mains or sewer etc completed as per standard specification.

B.T. Roads (or) Maccadam road - 1.299

Labour for cutting Concrete Roads for laying water mains or sewer etc completed as per standard specification.

Refilling with excavated soil (other than sand) complying with the standard specification for filling in foundation and basement

Refilling Quantity

Disposal of surplus earth including loading and conveyance within a distance of 5 km (basic cost of earth is zero) including loading charges and Conveyance Charges of 5 kms distance.

Road Restoration

Plain Cement Concrete 1:4:8 (one cement four fine aggregates and eight coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification

Total PCC 1:4:8 Quantity

Plain Cement Concrete 1:2:4 (one cement, two fine aggregates and four coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification, etc

Total PCC 1:2:4 Quantity

Construction of RCC Lift Machine Hole & Bell mouth Chamber using Ordinary Portland Cement (OPC) at following depth including labour charges for earthwork excavation as per standarad specification in hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stony earth and mixed with small size of boulders including cement concrete 1:4:8 (one cement four M-sand and eight broken stone)using 40 mm hard granite metal for foundation, filling stone dust of not more than 15cm thick, reinforced cement concrete of M-30 using 20mm ISS HBG metel for sidewall,cover slab,fabrication placing reinforcement and steel centering for various depth, providing FRC Machine Hole Frame and cover with IS-12392 part 1&2,PVC Mould steps,including the cost of refilling the excavated earth from the site, disposal of surplus earth with a distance of 5km.Complete as per standard specification and as directed by the departmental engineers (by using Ordinary Portland Cement) as per type design and drawing

150mm to 200mm Sewer Main - 0.9m Inner Dia

Upto 1.5m Height

150mm to 200mm Sewer Main - 1.2m Inner Dia

1.5m-2.5m Height

150mm to 200mm Sewer Main - 1.5m Inner Dia

2.5m-3.5m Height

3.5m-4.5m Height

Supplying and fixing 150mm dia C.I Pipe ventilating column 6m length with C.I Base for ventilating column,wire cowl,supplying,laying,jointing and testing of 160mm dia UPVC pipe to a length of 6m for each column including cost of jointing materials such as cement,sand and spun yarn with necessary civil works for construction of masonry pillars,earthwork excavation, refilling etc

Arrangements of Ventilating Shaft

Schedule 2 Pumping Main

Supply and Delivery of the following pipes for laying sewers

100mm CI Pipes

150mm CI Pipes

Supply , delivery and fixing of CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1993 at site etc., complete as directed by Engineer in charge. - 5% of Total Pipe Supply Cost

90 degree Bends

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

0-2m Depth

100mm CI Pipes

150mm CI Pipes

Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)

0-2m Depth

100mm CI Pipes

150mm CI Pipes

Cutting DWC/P.V.C. rigid pipes and specials true to axis and finishing the ends complete

100mm CI Pipes

150mm CI Pipes

Testing of pipes for water supply with hydraulic testing equipment by filling with water (including cost of water @ Rs. 60/KL) and testing to recommended pressure in convenient stretches and attending the bursts if any occured during the test, excluding the cost of pipes but including other incidential and operational charges etc., complete for the following diametres of pipes.

100mm CI Pipes

150mm CI Pipes

CI D/F SLUICE VALVE WITH CAP/ WHEEL AS PER IS 14846/2000 PN 1.0 WITH ISI MARKING

For Gate Valve - 100mm Main Size - 100mm

For Gate Valve - 150mm Main Size - 150mm

For Check Valve - 100mm Main Size - 100mm

For Check Valve - 150mm Main Size - 150mm

C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000

For Air Valve -150 mm Main Size - 100mm

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 1.0 Mpa working pressure,manufactured to highest standard available for mag-meters, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow. The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects. Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”.Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should be user friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished.

For Flow Meter - 150mm Main Size

For Flow Meter - 100mm Main Size

Construction of Valve Chamber of size 1.80x1.80x1.55 in Brick work with CM 1:5 mix with RCC slab 100mm thick including cost and conveyance of all material and labour charges to site etc., complete.

For Gate Valve -150mm Main Size

For Gate Valve - 100mm Main Size

For Flow Meter - 150mm Main Size

For Flow Meter - 100mm Main Size

Construction of Thrust blocks - with RCC M20 Grade concrete Earthwork - excavation and depositing on bank with an initial lead of 10 m and initial lift of 2 m in trenches (Hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small boulders and hard gravelly soil) including all charges etc complete., complying with standard specification as directed by Corporation Engineers 'P.C.C 1:2:4 (one cement, two sand and four coarse aggregate) using Sulphate Resistant cement and 20 mm H.B.G stone, RCC M 20 grade using cement and 20 mm H.B.G stone including mixing concrete, laying, curing and compacting of concrete etc., complete and as directed by the Corporation Engineers. Refilling the trenches …

150mm CI Pipes - 90Deg

150mm CI Pipes - 45Deg

150mm CI Pipes - 22.5Deg

Schudule 3

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 with sewage specific gravity of up to 1.05. Pump shall be of robust construction, Liquid passages shall be finished smooth and 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 be provided 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 facilitate lifting and lowering into guide rails for easy maintenance. Pump shall be provided with a stainless steel lifting chain conforming to BS 970 Gr 304. Pump speed shall be of 9600 rpm for high duty pumps and 960/1450 rpm for low duty pumpsets. Casing and impeller should be of CI Gr. FG 260 :IS210 more preferably with hardened impeller.Shaft should be of stainless steel AISI 410. All the fasteners and bolts shall be of AISI 410.The submersible motor shall be operated with 3ph, 415 V(+or– 10%), 50Hz(+or-5 %) dry induction type. Motor shall be capable of giving rated output without reduction in the expected life span when operated continuously. The rotating assembly shall be dynamically balanced as per standards. The starting current of the motor shall not exceed 200% of rated full load current for Star / Delta or ATS starting under any circumstances .The motor shall be suitable for full voltage star delta / ATS starting. The locked rotor current of the motor shall not exceed 600% of full load current unless otherwise specified. Motor shall be designed 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 in stator winding temperature (15 deg Celsius), bearing temperature, leakage in the stator housing and terminal box shall be provided and to be suitably interlocked with the control panel for tripping the pump in case of increase in temperature beyond set limit.

Providing House service connection: Supplying, laying jointing and testing UPVC pipe including earthwork excavation for trenches in hard stiff clay, stiff 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 initial lead of 10m. lowering the pipes into the trenches, aligning, refilling the trenches with excavated earth in layers of not more than 23cm thick watering, ramming to consolidation and disposal of surplus earth etc., complete.

110mm UPVC Pipe - Outside Property Boundary

110mm Inspection Chamber

110mm UPVC Pipe - Inside Property Boundary

160mm UPVC Pipe - Outside Property Boundary

160mm Inspection Chamber

160mm UPVC Pipe - Inside Property Boundary

Construction of Machine holes of different depths (using Sulfate Resisting Cement) as per drawing or approved type precast RCC Machine hole chamber along sewer lines and provided with tight fitting FRC machine hole frames and covers of 560 mm dia.. Of approved make and quality including supply and fixing of encapsulated PVC foot steps. The machine hole shall br of Reinforced cement concrete of M30 mix ((by using sulphate resistant cement) using 10 mm to 20 mm ISS gauge HBBG metal from the approved quarry including mixing, laying consolidating curing cost and conveyance of all material to site with inner smooth finishing, Benching and channeling should be provided in the manhole and suitable diameter pipes for House service connection to be left in the manholes as directed by the Engineer in-charge. The rate shall include earthwork, cost of steel with fabrication as per approved drawing and placing,tieing of binding wire, centering and shuttering, backfilling,and removel of surplus earth and deposting within 500m, de-watering wherever necessary,barricating,provision of danger lights etc.. Complete as per standard specification and directed by the Engineer in charge For construction of Sewer works SRC cement has to be used

Description of Work / Item(s)

Amount

Total cost of operation and maintenance of the Underground sewerage system including manpower, spares, consumables, repair work etc.

For First Year

For Second Year

For Third Year

For Fourth Year

For Fifth Year

Add GST 18%

Description of Work / Item(s)

Amount

Organize meetings with line departments.

Workshop on E&S safeguards and on-job training as identified.

Use of IEC material and use of media channel to create public awareness on waste management

Consultations with stakeholders regularly

Meetings of GRC

Environmental monitoring

Health camp, occupational health and prevention of Covid 19

Add GST 18%

Nagarajan Construction Company Pvt Ltd (BID ID -1124092)

Nagarajan Construction Company Pvt Ltd (BID ID -1124092)

Nagarajan Construction Company Pvt Ltd (BID ID -1124092)