Wapcos Limited has published Tender For Geotechnical Investigation ( Core Drilling ) For Idukki Extension Scheme H. E. Project ( 800 Mw ) In Kerala. Submission Date for this Tender is 24-08-2022. Core Drilling Tenders in idukki Kerala. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 08-Aug-2022 | Corrigendum-I | Date | 17-08-2022 |
| 2 | 16-Aug-2022 | Corrigendum-II | Date | 24-08-2022 |
| Sl. No. | Item Description |
| 1 | Core drilling in rock including overburden using hydraulic feed rotary drill and double/triple tube core barrel with DIAMOND CORE bit including collection of core samples, maintaining continuous record of core recovery / RQD, keeping the cores in wooden core boxes, transporting to laboratory, providing cap on top on completion of the same, all complete as per the BIS specification and instructions of the Engineer- in Charge: |
| 2 | up to 50m |
| 3 | 50-100m |
| 4 | 100-150m |
| 5 | 150-200m |
| 6 | 200-250m |
| 7 | 250-300m |
| 8 | 300-350m |
| 9 | 350-400m |
| 10 | 400-450m |
| 11 | Tests in Drill holes. |
| 12 | Conducting filed permeability test in soil/over burden at various locations in bore holes |
| 13 | Pump in test in boreholes by constanthead method/ falling head method |
| 14 | Percolation test in pits |
| 15 | Conducting field permeability test in rock in drill holes at various depths |
| 16 | Single Packer method |
| 17 | Double Packer method |
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