Construction of New UGSS Lifting Station and Providing the PVC Pipe Line at Bharathi Nagar Ward No.13 in kancheepuram Corporation

Amount

Earth work open well excavation complying with relevant clauses of T.N.D.S.S. Well sinking and with lead upto 10 metre in Hard stiff clay, stiff black coton soil, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders and hard gravely soil - First depth of 2 metre

Plain Cement Concrete 1:4:8 mix (One Cement, Four crushed stone sand and Eight Coarse Aggregate) Using 40mm ISS HBG metal for foundation and basement including dewatering if found necessary and laid in layer of not more than 15cm thick and consolidated including all cost conveyance of materials and labour charges etc. complete as per standard specifications and as directed by departmental Engineers(TNBP No.28).

Plain Cement Concrete 1:2:4 (one cement, two sand and four hard broken stone jelly) using 20mm jelly for wearing coat including laying, compacting, finishing and curing, etc., complete as per standard specificatins and as directed by the departmental officers.

Providing steel centering using MS Plates of size 90cm x 90cm 10 to 13 G thick welded with 25mm x 3mm MS angle supported with country wood scantiling of size 10cm x 6.5 cm at 50cm C/c strutting with casurina propos of 10cm to 13 cm dia as directed by Departmental officer Curved Surface

Providing steel centering using MS Plates of size 90cm x 90cm 10 to 13 G thick welded with 25mm x 3mm MS angle supported with country wood scantiling of size 10cm x 6.5 cm at 50cm C/c strutting with casurina propos of 10cm to 13 cm dia as directed by Departmental officer Roof Slab

Providing and laying in position, Standardised Concrete Mix M-20 Grade in accordance with IS:456-2000, using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/mᶾ and maximum water cement ratio of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5 cu.m.) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m.) 7670 kg. of sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standards. (No separate payment will be made by the Department for the excess usage of materials).

Supply fabrication and placing of steel reinforcement using FE 415 and TMT rods including cost and conveyance of steel and all labour charges etc complete

Plastering in CM 1:5 ( one cement four sand ) 12mm thick including curing etc complete as directed by departmental officer.

Supply and delivery of PVC Mould CI steps for Sump in position of 30cm c/C in staggered manner and as directed by the TWAD Board officer

Supply delivery and fixing of in position 50mm thick manhole cover of size 0.60m x 0.60m with necessary reinforcement alround the edges of the soil etc complete and as directed by departmental officer

Supply and delivery of 5.00HP Open well Submersible pump set conforming to IS 14220 /2002 and as amended thereafter and BEE 3 Star Rated capable of discharging the following duties due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze mixed type impeller, CI FG 200 grade casing and brass screws and rotor shall be of copper rod as per IS 613/1984 with ISI mark. The pump suitable for installation in sump with 1.1KV grade 3 core suitable copper flat submersible cable to a length of 15m with necessary cable joints. The non-return valve located at the top of the pump in the discharge outlet connection is to be designed with minimum friction. The pump should be directly coupled to 2880 RPM, three phase, 50 Hz (±5), 415V+6% & 415V-15% squirrel cage induction motor suitable for DOL upto 5 HP, Fully Automatic Air break Star Delta up to 20 HP and Auto Transformer starter for above 20 HP starting and for continuous operation. Pg.No.105

Supply of PVC insulated and sheathed 3 core 6.0 sq.mm flat type copper cable conforming to is 694/1990 and as amended thereafter TWAD SOR Pg.No.116

Supply and delivery of PVC Pipe and other jointing materials and including cost and conveyance to work site and handling labour charges etc complete 110mm pvc pipe

Dismantling of Plain cement concrete with including cost and conveyance of all materials to site and labour charges etc,complete as per specification

Earth work excavation for Pipe line works having bed width and below on linear measurement basis etc., departmental officers with initial lead of 10m and lift 2m in narrow trenches having bed with 1.25m and below for laying and pipe for water supply and sewerge works in the following types of soil as directed by departmental officers sand silt or other loose soil wet sand or silt not under water light black cotton soil sandy loam and ordinary soil SS 20B 2022-23

Supply and delivery of Ductle iron 200mm D/F pipes as per class PN10 as per IS 8329/200 for standard 5.00 length including cost of pipe, testing charges at factory labour charges for loading and unloading, stacking at site etc complete as per standard specification TWAD SOR Pg.No.50

Lowering of DI Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD officers (Sch.No.7a(i)) Pg.No.239

Jointing the C.I / D.I - Double Flanged (D/F) pipes and specials with rubber insertion to with IS-638(1979) and M.S. Bolt and nuts of IS 1364-1(2002), inlcuding cost of jointing materials such as bolt and nuts Rubber insertion and labour charges etc.,complete Sch.No.8c, Pg.No.243

Construction of Sewerage chamber of size 60 cm x 60 cm and depth of 120cm with 60cm dia cover slab with frame including and earth work excavation for foundation wth 10cm thick concrete bed using 40mm B.J. concrete in CC 1:4:8 and 15cm thick concrete bed using 20mm CC 1:2:4 for foundation brick work in CM 1:5 for chamber as directed during the execution including plastering with CM 1:5, 12mm thick, benching and channelly etc. complete for 1 No.

Refilling with excavated soil (other than sand) complying with the standard specification for filling in foundation and basement and pipe line works as per standard specification etc…complete.

NPGBROTHERS (BID ID -1336190)