Development of Rural Market at Hadrai Bazar under Kakraban Agri Sub Division South Tripura District SH Installation of 1 No Small Bore Deep Tube

Construction of Barak Bamboo Scaffolding for drilling & lowering of the tube well in/c cutting a tank 2.00 m x 2.00m x 0.90 m size in drilling & cutting the two tank with 0.30m width & 0.15m deep drain.

Drilling & Boring of pilot hole in any strata by manual means collection of soil samples of different strata met with during drilling at various suitable levels, preservation of samples in polythene Bags sample boxes and disposed of excess soil on mud in/c the cost for water etc. as required to maintain the project hole property as per specification & direction of the Engg.-in –charge.1) 100 mm dia

Reaming the the pilot to an enlarged bore hole in any soil strata by manual mean, disposal of excess soil an mud in/c the cost of water etc. as required to maintain the bore hole property as per specification & direction of the Engg-in –charge. I) For 100mm dia pilot hole to 250mm dia hole.

Providing & lowering of UPVC pipe as per IS:12818 after washing of the bore hole by manual means as per specification & direction of the Engg.-in –charge. A. “CS” Casing pipe :- I) 150mm dia NB

II) “CM” Casing pipe :-100 mtr dia NB

B. “RS” strainer pipe :-100 mm dia bore

Development & Washing the tube well by using air compressor (Diesel operated) until sand free clear water is available as per direction of the Engg-in –charge.

Providing & shrouding of deep tube well assembly with washed pea gravels(2.00-4.75 mm size) as per specification (Is;4097) and direction of the Engg-in –charge. a) Pea gravels obtained from Golaghati, Assam/ Durgapur, W.B.

Providing fitting fixing of submersible pump having capacity of 2000GPH at 40 mtr head with single phase 2 HP submersible motor (water filling) suitable for 150 mm x 100 mm bore well including 21 mtr. PVC insulated 3 core flat copper cable(2.5 squre mm size) confirming to relevant IS code for submersible motor with necessary equipments and fittings as required as per direction of the Engg-in –charge.

Providing fitting fixing ,lowering, positioning & amp; resting of 32mm dia UPVC column pipe(Medium class) both end threaded (Max. length of each column pipe is 3 mtr and total 30 mtr long column assembly in/c Pvc coated GI wire & fitting fixing with submersible pump set by taplon tape and other compounding materials etc. complete in all respect.30 mtrs.