Tender For Water Supply Schemes (Irrigation) In Tripura/Drilling And Development Of 9 (Nine) Nos. Deep Tube Wells (10000 /7500/5000 Gph). With Contractors Direct Rotary Drilling Rig And Other Machineries And Equipment Including Providing And Fitting
Tender Overview
Project Description
Water Supply Schemes ( Irrigation ) In Tripura / Drilling And Development Of 9 ( Nine ) Nos. Deep Tube Wells ( 10000 / 7500 / 5000 Gph ) . With Contractors Direct Rotary Drilling Rig And Other Machineries And Equipment Including Providing And Fitting Fixing Of E Ambassa And Manu Rd Block Of Ambassa And Manu Sub-Division, Dhalai District Of Tripura State Under The Office Of The Executive Engineer, W.R. Division No.V, Kamalpur, Dhalai Tripura During The Year 2022-23. Job.No.Tr / 56, 57, 61, 62, 63, 64, 65, 66, 67 / Dtw /
BOQ
| Sl. No. | Item Description |
| 1 | Drilling and boriing pilot hole in any strata by drilling rig. Collection of soil samples of different strata met bwith during drilling at various suitable levels, preservtion of samples in polythene bags/ samole boxes and disposal of excess soil or mud including the cost for bentonite, water etc. as required to maintain in the pilot hole properly as per specification[(IS:2800) (Part-I)] and direction of the engineer in charge A with contractor rig. |
| 2 | i) 200 mm dia |
| 3 | Reaming of pilot hole to an enlarged bore hole in any soil strata by drilling rig, disposal of excess soil or mud including the cost for bentonite, water etc. as required to maintain the bore hole properly as per specification[(IS:2800)(Part-I] and direction of the Engineer-in Charge A. with contractor rig |
| 4 | i) From 200 mm dia. Pilot hole to 550mm bore hole |
| 5 | ii)From 200 mm dia. Pilot hole to 460mm bore hole |
| 6 | Washing of enlarged bore hole of 460-550 m dia in any soil strata by drilling rig, disposal of exceess soil or mud, including the cost for bentonite, water etc. as required to maintain the bore hole properly including lifting of drill pipes as per specification [(IS:2800) (Part-I)] and direction of the Engineer-in Charge. A with contractors rig. |
| 7 | Providing and lowering of Erw pipe conforming to IS:3589-2001 (with latest revision with drilling rig including painting with anti corressive bitumastic paint, fixing of M.S ring welding of all joints etc complete after washing of the bore hole as per specification [(IS:2800)(Part-I) and direction of the Engineer- in Charge |
| 8 | i) 300 mm dia ERW housing pipe |
| 9 | ii) 200 mm dia ERW blind pipes |
| 10 | iii)200 mm dia ERW slotted pipes. |
| 11 | Providing and fixing of bail plug ( made with 8m thick MS sheet) by welding with blind pipe including applying of anticorrosive bitumastic paint as per specification [(IS:2800) (Part-I) and direction of the Engineer-in Charge A. with contractor rig |
| 12 | Providing and fixing of reducing socket ( made with 8 mm thick MS sheet ) by welding with blind pipe including applying of anti-corrusive bitumastic paint as per specification ( IS : 2800 (part-I)) and direction of the Engineer - in - chargeA. with contractor\"s rigi. 300 x 200 mm dia |
| 13 | Providing and shrouding of the deep tube well assembly with washed pea gravels (2.00-4.75 mm effective size) as per specification (IS:4097) and direction of the Engineer-in charge A. with contractors rigii. with pea gravels obtained from Durgapur, West Bengal. |
| 14 | Providing and fixing of housing clamp (made with 12mm thich MS sheet by welding with blind pipeincluding applying of anti-corresive bitumastic paint as per specification[(IS:2800)(Part-I) nd direction of the Engineer -in -charge.i. 300 mm dia |
| 15 | Washing and development of tube well by using air compressor nd testing of the well as per specification (IS:1189) and direction of the Engineer-in-ChargeA. with contractors air compressor.I. Upto 200 mtr pipe assemblyA. with contractor\"s air compressori. using air compressor of 300 - 450 cfm output for DTW |
| 16 | Providing and fixing of well cap (made with 8mm thick MS sheet) by welding with blind pipe including applying of anti corrosive bitumastic paint as per specification[IS:2800) (Part-I)] and direction of the Engineer in charge.i. for 300 mm dia ERW pipes |
| 17 | Providing and filling of the abondoned pilot hole of deep tube well with available materials obtained from pilot hole / sand / earth / any other suitable materials as per specification and direction of the Engineer-in-Charge.i) With available materials obtained from pilot hole (50%) and sandy earth (50%). |
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