Nuclear Power Corporation Of India Limited Tender

Rotary boring/drilling of ‘SX’ size holes vertically to log and collect samples through all kinds of soils and weathered rock with adequate and suitable equipment for all depths as drawings and as directed by the Engineer-in-Charge. Note: The quoted rate shall include the following: 1. Mobilization and demobilization of adequate numbers of suitable boring and drilling rigs of hydraulic type, including necessary drilling rods, pumps, miscellaneous equipment, tools, spares, consumables etc. adequate for each set of plant, survey equipment, etc. Additional rigs and equipment shall be mobilized by contractor, if needed, for timely completion of the work at his own cost. 2. Deployment of technical, skilled, semi skilled & unskilled man power required for carrying out the complete work as per specifications & drawings. 3. Providing suitable temporary removable casing for ensuring stability of boreholes in soil/ weathered rock. 4. Measurement of ground water level.. 5. Preparation and Maintenance of drilling records, field core logs and submission of final geological logs in hardcopy as well as soft copy. 6. Conducting Standard Penetration Test (SPT) in the bore holes in soil @ every 1.5m depth or as specified in the drawings. 7. Collection of soil/weathered rock samples at the depth and in quantity as specified in the drawing and as directed by EIC, maintaining records of each, transporting the sealed and preserved in original condition to the approved NABL laboratory or applicable IS Code for the tests mentioned under relevant items. 8. Grouting of holes with cement mortar 1:2 (weight batches)

Carrying out pressure meter tests (Expansion type) tests in rock, up to 200 bars, in holes at specified depths (upto drilling depths as per Founding level as mentioned in drawings) for estimation of modulus of elasticity of rock etc. as per IS 12955 parts specifications and drawings in selected boreholes as directed by Engineer in charge and establishment of Elastic Modulus and Deformation modulus and Safe bearing capacity of each building in report form as per IS standard and as per EIC instructions. It is note that shall be prepared and Interprated by Experienced Geotechnical Enginer

NX driling From 80 M below GL to 100 M below GL

NX driling From 40 M below GL to 60 M below GL

Triaxial Tests , Without saturation and as instrcuted by EIC and IS codes. Note: 3 samples tetsted at different cell pressure consitute 1 set

Providing GI Core boxes as per IS 4078 to include 6 m cores and as per EIC intructions.

NX driling From 100 M below GL to last drilling depths below GL

Detailed Petrographic examination of core including grinding thin sections for study under electronic microscope, taking photo (micro-graphs) of sections and assessment of strained quartz etc complete for including in the report and submission of report and as per EIC instructions.

Tensile test by Brazilian method as per IS 10082 and as instrcuted by EIC.

Triaxial Tests , Without saturation and as instrcuted by EIC and IS codes. Note: 3 samples tetsted at different cell pressure consitute 1 set

Dry/Bulk density and specific gravity as specified in the drawing and IS codes and as directed by the EIC

NX driling From 20 M below GL to 40 M below GL

NX driling From 60 M below GL to 80 M below GL

Uniaxial compression test to determine un-confined compressive strength along with Young's Modulus E and Poisson's ratio as per field conditions and as instrcuted by EIC.

Same as above item i.e. 1 but with NX size holes in rock formations (excluding carrying out SPT) including collection, numeration and logging of cores, supply of core boxes boxes made of seasoned timber or any other durable material as per IS: 4078 for storing core samples, painting, labelling of boxes, putting core samples in the boxes, labelling of cores samples, colour photographs (100mm x 150 mm) of boxes with core samples placed inside the boxes and transporting and storing in core samples library at location indicated by Engineer-in-Charge, measurement of ground water level etc. complete as per drawings.