South Eastern Coalfields Limited-SECL has published Drilling And Construction Of 5 Nos . Of Piezometer Including Digital Water Level Recorders Gevra Project Of Gevra Area. Submission Date for this Tender is 29-07-2020. Drilling Work Tenders in Gevra Area Chhattisgarh. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 27-Jul-2020 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 29-07-2020 |
| Name of the Work / Contract No: | |||||
|---|---|---|---|---|---|
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | Part -A | BI01010001010000000000000515BI0100001112 | ||
| 2 | 1.01 | Preparatory work for carrying out drilling surface dressing. Making channels, mobilization & demobilization | BI01010001010000000000000515BI0100001113 | 5 | per site |
| 3 | 1.02 | Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer -in-charge, upto 90 Mtr depth below ground level.\r\nAll types of soil\r\n300 mm dia | BI01010001010000000000000515BI0100001114 | 391 | metre |
| 4 | 1.03 | Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer -in-charge, beyond 90 metre & upto 150 metre depth below ground level.\r\nAll types of soil\r\n300 mm dia | 359 | metre | |
| 5 | 1.04 | Supplying, assembling, lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 mild steel screwed and socketed/ plain ended casing pipes of required dia, conforming to IS: 4270, of reputed & approved make, including painted with outside surface with two coats of anticorrosive paint of approved brand and manufacture, including required hire & labour charges, fittings & accessories, all complete, for all depths, as per direction of Engineer-in-charge.\r\n150 mm nominal size dia having minimum wall thickness 5.00 mm | 458 | metre | |
| 6 | 1.05 | Supplying, assembling, lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 plain slotted (having slot of size 1.6/3.2 mm) mild steel threaded and socketed / plain bevel ended pipe (type A) of required dia, conforming to: IS 8110, of reputed and approved make, having wall thickness not less than 5.40 mm, including painted with outside surface with two coats of anticorrosive bitumestic paint of approved brand and manufacture, including hire & labour charges, fittings & accessories, all complete, for all depths, as per direction of Engineer -in-charge.\r\n150 mm nominal size dia | 297 | metre | |
| 7 | 1.06 | Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I).\r\n150 mm dia | 5 | Nos | |
| 8 | 1.07 | Supplying and fixing of central guide of approved specification | 25 | Nos | |
| 9 | 1.08 | Gravel packing in tubewell construction in accordance with IS: 4097, including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of Engineer-in-charge. | 25.5 | cum | |
| 10 | 1.09 | Providing and fixing cement sealing (2M) to prevent entry of ground water from top aquifer into piezometer as per specification and instruction of Engineer in Charge (For deep piezo) | 0.22 | cum | |
| 11 | 1.1 | Providing bentonite sealing (2M) to prevent entry of ground water from top aquifer into piezometer as per specification and instruction of Engineer in Charge (For deep piezo) | 0.22 | cum | |
| 12 | 1.11 | Providing sand pack (2M) to prevent entry of cement slurry from cement sealing into gravel pack and for seperating two aquifer zones after gravel pack as per instruction of Engineer in Charge (for deep piezo) | 0.22 | cum | |
| 13 | 1.12 | Providing clay filling above cement seal upto ground lavel but below sanitary seal to prevent entry of surface and sewage water at top as per specification and instruction of Engineer in Charge. | 24.27 | cum | |
| 14 | 1.13 | Development of tube well in accordance with IS : 2800 (part I) and IS: 11189, to establish maximum rate of usable water yield without sand content (beyond permissible limit), with required capacity air compressor, running the compressor for required time till well is fully developed, measuring yield of well by "V" notch method or any other approved method, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, i/c disinfection of tubewell, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of Engineer-in-charge. | 25 | hour | |
| 15 | 1.14 | Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/ casing pipe, removable as per requirement, all complete for borewell of:\r\n150 mm dia | 5 | Nos | |
| 16 | 1.15 | Compressor test of piezometer by running of air compressor for 5 hours (without any break) and recuperation of water level for 5 hours | 25 | hour | |
| 17 | 1.16 | Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.\r\nAll kinds of soil. | 3.14 | cum | |
| 18 | 1.17 | Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :\r\n1:1½:3 (1 Cement: 1½ coarse sand: 3 graded stone aggregate 20 mm nominal size) | 3.14 | cum | |
| 19 | 1.18 | Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete. | 311.62 | kg | |
| 20 | 1.19 | Painting with synthetic enamel paint of approved brand and manufacture to give an even shade :\r\nTwo or more coats on new work | 23.1 | sqm | |
| 21 | 2 | Part- B (DIGITAL WATER LEVEL RECORDER TELEMETER) | |||
| 22 | 2.01 | Providing and fixing water level sensor with data logger and cable length of 123 m Encardio rite Model EWLR- 101-BX or equivalent digital water level recorder complete with accessoriese to measure water level, temprature and atmospheric pressure with integral GSM/GPRS modern for telemeter. (HSN Code 9031) complete. | 1 | No | |
| 23 | 2.02 | Providing and fixing water level sensor with data logger and cable length of 123 m Encardio rite Model EWLR- 101-BX or equivalent digital water level recorder complete with accessoriese to measure water level, temprature and atmospheric pressure with integral GSM/GPRS modern for telemeter. (HSN Code 9031) complete. | 1 | No | |
| 24 | 2.03 | Providing and fixing water level sensor with data logger and cable length of 77 m Encardio rite Model EWLR- 101-BX or equivalent digital water level recorder complete with accessoriese to measure water level, temprature and atmospheric pressure with integral GSM/GPRS modern for telemeter. (HSN Code 9031) complete. | 1 | No | |
| 25 | 2.04 | Providing and fixing water level sensor with data logger and cable length of 188 m Encardio rite Model EWLR- 101-BX or equivalent digital water level recorder complete with accessoriese to measure water level, temprature and atmospheric pressure with integral GSM/GPRS modern for telemeter. (HSN Code 9031) complete. | 1 | No | |
| 26 | 2.05 | Providing and fixing water level sensor with data logger and cable length of 44 m Encardio rite Model EWLR- 101-BX or equivalent digital water level recorder complete with accessoriese to measure water level, temprature and atmospheric pressure with integral GSM/GPRS modern for telemeter. (HSN Code 9031) complete. Note- above five item (Part-B) included all packing charges, fright and deployment of person for installation of each system includes configuring of the datalogger and making data available online on the web. (HSN Code 995468) as per instruction of Engineer in Charge. | BI01010001010000000000000515BI0100001126 | 1 | No |
| 27 | 3 | Total impact of GST for the purpose of CTC | BI01010001010000000000000515BI0100001129 | 1 | Nos |
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