Nuclear Power Corporation Of India Limited Tender

All types of trees above 600 mm up to 1200 mm girth sizes

All types of trees above 1200 mm up to 2400 mm girth sizes

EXCAVATION: Excavation in all type of soils & loose/soft rock (Rocks of Weathering Grade IV, V & VI of IS 11315 Part 5) including top soil, hard murrum or other hard soil mixed clay, soft disintegrated rock not requiring blasting in general area grading, roads and drainage work, all main plant buildings and other structures, foundations, tunnels and trenches etc. including shoring and strutting as required, stacking the useful/ serviceable materials & disposal of the excavated muck in proper stacks as directed by the Engineer-in-Charge for all lifts and up to a lead of 1500 m for the depths as specified in item 3.01 and 3.02 below the existing ground level. Note: 1. The quoted rate shall include the cost of draining and pumping out surface water (i.e. water other than water below ground water table), lowering of ground water table to maintain dry working conditions till completion of all activities (such as concreting, curing, water proofing, filling / testing etc.), which require dry working conditions providing sheeting, shoring, strutting, bracing, trimming of excavated bottom, testing, with all labour, material, equipment, handling, transportation, preparation of the scheme for excavation and dewatering and getting the same approved, etc., for all types of work, at all levels, all complete, as per specifications, drawings and instructions of the Engineer, for all lifts. 2. It shall also include the preparation of detailed excavation scheme (detailing about proposed excavation, de-watering, carriage, disposal, and stacking of the earthwork), planning and scheduling each stage part-wise and to be approved by EIC and thus commencing the work only after approval. 3. The average E.G.L (Existing Ground Level) of the site varies from R.L. 296 m to R.L 316 m. 4. Reduced Level 300 M corresponds to the EL of 99.7 m, which may be subjected to change during course of project.

From Existing Ground Level to Reduced Level 300 m

Below Reduced Level 300 m (up to the depth as specified in drawings or as instructed by Engineer-in-Charge)

Slope Stability Analysis: Conducting slope stability and safety analysis by expert agency such as NIRM/GSI/IITs for the excavated trenches or proposed excavated trenches, stacked serviceable and unserviceable materials or proposed stacking of serviceable & unserviceable materials, surrounding soil, adjacent structures, pits, services and the work areas. The detailed study along with report should recommend the scientific arrangement of slope protection with detailed design calculations/drawing/scheme and technique to be adopted including provision of planning for geotextiles, shoring, cofferdam, or any other techniques desirable for safety and stability of the above applicable area throughout the contract. The same shall be approved by Engineer-in-Charge. Note: 1. The study shall be comprehensive and is to be presented in part or in full as applicable to each proposed or excavated or stacked area. 2. The report shall comprehend and supplement the excavation scheme prepared by the contractor under item 3 & 5

Slope protection: Providing and laying of protective covering/measures as suggested in the part-reports/report of the Slope Stability & Safety Analysis in item 3.03 including any geotextile/non-geotextile based protection at all heights/lifts for all collapsible and non-collapsible layers of the excavated trenches/pits/work area or for the stack of any serviceable/unserviceable materials as directed by Engineer -in-charge. Note: 1. The quoted rate shall include complete cost from supply of materials to the final implementation of protecting the slopes 2. It shall also include any cost that may incur due to rework if required for any reason such as climatic factor, poor workmanship, etc. 3. The unit of payment is effective area covered in square meters which includes any over lapping or so and no separate payment for the same would be made

Blast Charge Studies Conduct blast-charge studies through specialized agency like NIRM / CWPRS / GSI, as per technical specifications before commencing blasting for excavation in hard rock. The report should recommend the safe charge for limiting the peak particle velocity in permissible limits for various distances as per technical specifications. The specialised agency shall also suggest suitable method of muffling to avoid flying of rock/ rock pieces/ fragments during blasting. Note: Preparatory works involving tree cutting, pit excavation etc. shall be paid under relevant items.

EXCAVATION: Carrying out excavation in hard rock requiring controlled blasting as per Blast charge studies mentioned in item no. 4, by controlling of peak particle velocity including muffling wherever required, for general area grading, all main plant buildings and other structures, foundations, tunnels & trenches including stacking the useful/ serviceable material and disposal of excavated muck in places as directed up to a lead of 1500 m. as per technical specifications. Note: 1. The rate quoted shall include continuous monitoring of blast vibration levels during blasting for main plant excavation works through the same specialised agency as in item no. 4, on requirement basis by deploying standard seismograph. It shall also consists of collecting and submitting data pertaining to monitored vibration report along with air over pressure values on requirement basis at the locations as directed by the Engineer-in-Charge. 2. It shall also include the cost of draining and pumping out surface water (i.e. water other than water below ground water table), lowering of ground water table to maintain dry working conditions till completion of all activities (such as concreting, curing, water proofing, filling / testing etc.), which require dry working conditions providing sheeting, shoring, strutting, bracing, trimming of excavated bottom, testing, with all labour, material, equipment, handling, transportation, preparation of the scheme for excavation and dewatering and getting the same approved, etc., for all types of work, at all levels, all complete, as per specifications, drawings and instructions of the Engineer, for all lifts. 3. It shall also include the preparation of detailed excavation scheme (detailing about proposed excavation, de-watering, carriage, disposal, and stacking of the earthwork), planning and scheduling each stage part-wise and to be approved by EIC and thus commencing the work only after approval. 4. The average E.G.L (Existing Ground Level) of the site varies from R.L. 296 m to R.L 316 m. 5. Reduced Level 300 M corresponds to the EL of 99.7 m, which may be subjected to change during course of project. 6. This shall also include excavation of last 150 mm above final excavation level which is required to be carried out by mechanical/manual chiselling to prevent over excavation, damage to foundation strata, obtain an even surface and shall not be measured under Item No. 6 below. 7. No payment shall be made to contractor for over excavation due to any reason, if any occurs, the contractor shall provide for laying of PCC as described in item no. 33 up to the desired level or as instructed by EIC at no extra cost

From Existing Ground Level to Reduced Level 300 m

Below Reduced Level 300 m (up to the depth as specified in drawings or as instructed by Engineer-in-Charge)

EXCAVATION: Excavation in hard rock by other means viz. mechanical rock breaker/ hydraulic splitting/using expansive grouts/chiselling etc. in general areas, main plant buildings and other structures, foundations, tunnels and trenches, areas as instructed by EIC, where blasting is not permitted, stacking serviceable materials and disposal of excavated muck in places up to the lead of 1500 m. and for all depths below existing ground level.

CARRIAGE OF MATERIAL: Extra for additional lead over the first 1500 m lead for stacking the serviceable materials and disposal of excavated muck obtained from item 3.01, 3.02, 5.01, 5.02, 6 and 8.01 Note: For the lead up to 1500 meters is already covered under relevant items no 3.01, 3.02, 5.01, 5.02, 6 and 8.01

Additional lead beyond 1500 m up to 3500 m

Additional lead beyond 3500 m up to 4500 m

Extra for every additional Lead of 500 m or part thereof beyond 4500 m.

EXCAVATION: Line/Perimeter drilling and pre-shearing for vertical faces of excavation in rock to the depth as specified in drawings and as directed by the Engineer-in-Charge, in all locations for main plant buildings and other structures as directed by the Engineer-in-Charge. 1. The quoted rate shall include any cost for deployment (mobilization and de-mobilization) of any equipment, tools, machinery, item, labour, etc essential for performing the task. 2. It shall also include the preparation of detailed excavation scheme (detailing about proposed excavation, de-watering, carriage, disposal, and stacking of the earthwork), planning and scheduling each stage part-wise and to be approved by EIC and thus commencing the work only after approval. 3. It shall include the cost for scientific disposal of the excavated material up to the distance of 1500 meters as per approved excavation scheme as or instructed by EIC.

Line drilling/Perimeter Drilling & Preshearing

DEWATERING: Deploying electrical/diesel operated dewatering equipment's including all machines/ equipment's, DG sets, pipe lines etc. functionally required for de-watering including installation, setting it to work, commissioning, decommissioning and removal from site after completion of work as per the technical specifications, approved scheme and as per instructions of the Engineer-in-Charge. Note: 1. This is one time payment for deployment of the above listed equipment and accessories, no separate payment is to be made for any re-deployment, shifting, modification, alterations, replacement, etc. as the quoted rate shall include it. 2. The payment is to be made only after successful deployment of all the equipment's and accessories as per the approved de-watering scheme or as directed by Engineer-in-Charge.

DEWATERING: De-watering of accumulated rain and ground water in excavated areas/ pits as per technical specifications, approved de-watering scheme, requirement basis or as instructed by Engineer-in-charge for all main plant buildings and other structures and miscellaneous foundation structures including running and maintaining the de-watering system/ equipment, together with the cost of spares as required. Measurement shall be based on energy meter readings. Note: 1. The surface runoff from the surrounding area shall not be allowed to flow into excavated pit by providing suitable bunds/ drains. The quoted rate shall include provision of these diversion measures 2. These item shall only operate over and above the water for which de-watering is already considered under item no. 3 and 5. Thus, the de-watering beyond the scope of item no. 3 and 5 shall be paid here.

Using Electrical pumps

Using Diesel pumps

GEOLOGICAL MAPPING: Carrying out cleaning, washing and removal of loose materials by compressed air & brush, by manual means etc. on hard rock or weathered rock at founding level (FL) or finished excavation levels as applicable for various main plant buildings and other structures after excavation of hard rock or weathered rock exposed surfaces including horizontal / vertical / inclined surfaces and as directed by Engineer-in-Charge for facilitating geological mapping. Note: The execution of this task for exposed surfaces, as per the drawings or as instructed by EIC, shall be planned to minimize the need for repeated cleaning, washing, and removal of loose material. Any costs incurred due to such repetitions will not be paid separately.

GEOLOGICAL MAPPING: Conducting geological mapping on hard rock or weathered rock at founding level (FL) or finished excavation levels as applicable of various main plant buildings and other structures after excavation all exposed surfaces including horizontal / vertical / inclined surfaces by a qualified geologist/personnels from Government agencies like NIRM/ GSI and submission of final reports in triplicate and soft copy (editable) complete as directed by the Engineer-in-Charge. Mapping shall include horizontal, inclined and vertical surfaces.

CONFIRMATORY SUB-SOIL INVESTIGATIONS: Locating bore holes, shifting & setting up of drilling equipment at each of the drill locations within main plant boundary, including following activities: 1. Conducting survey and locating the boreholes as per the drawing and as directed by Engineer-in-Charge by using total station with all accessories. The location of the boreholes to be identified based on the coordinates provided in the drawing by transferring the coordinates from the marked up points given in the drawing/ shown by Engineer-in-Charge along with grid / bench mark. The distance of survey traverse will be approximately 2.5 KM. Use of GPS instruments for locating bore holes shall not be acceptable, however, it may be used as a confirmatory system only. 2. Making temporary access roads as required to the boring/ drilling locations from existing approach roads to site. 3. Arranging water supply for the drilling and testing. 4. This item shall be operated only once for each bore hole. Any replacement or change of equipment needed due to any reasons, contractor shall carry out at his own cost. 5. Required site clearance, earthwork etc. suiting for mounting of the equipment and creating working environment. 6. No extra payment shall be made for any criss-cross or back and forth movement of the rig after setting, required for proper positioning, including marking the drill hole location on ground by actual survey, as per the drawing or instructions of the Engineer-in-Charge.

CONFIRMATORY SUB-SOIL INVESTIGATIONS: 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 per specifications, 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 borehole/s, 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. Collecting and preserving the obtained soil/rock sample depth-wise in the corebox of the specified borehole. Specification and cost of the coreboxes is already covered under item no. 15 below. 5. Measurement of ground water level as per specifications & drawings. 6. Preparation and Maintenance of drilling records, field core logs and submission of final geological logs in hardcopy as well as soft copy (editable). 7. Conducting Standard Penetration Test (SPT) as per IS 2131 in the bore holes in soil @ every 1.5m depth or as specified in the drawings. 8.Collection of soil/weathered rock samples (disturbed or undisturbed as applicable) 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 sample/s in original condition to the approved laboratory as per the technical specification or applicable IS Code for the tests mentioned under Item No. 18, 19, and 20 as applicable. 9. This shall include transporting the tested sample back to the site for preservation/record purpose in the condition as obtained immediately after performing the applicable test/s as per drawings, technical specification, etc. under Item No. 18, 19 and 20

CONFIRMATORY SUB-SOIL INVESTIGATIONS: Same as above item but with NX size holes in rock formations (excluding carrying out SPT) including collection, enumeration and logging of cores, supply of core 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 specifications & drawings. Note: The quoted rate shall include: 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 borehole/s, 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. Collection of rock samples at the depth and in condition as specified in the drawing and as directed by EIC and sealing, preserving, and maintaining records of each before transporting to the approved laboratory as per the technical specification or applicable IS Code for the tests mentioned under Item No. 19 and 20. 4. This shall include transporting the tested sample back to the site for preservation/record purpose in the condition as obtained immediately after performing the applicable test/s as per drawings, technical specification, etc. under Item No.19 and 20 5.The portion of rock core sample collected for testing from the core obtained shall be replaced with suitable dummy material (like PVC Pipe) of similar dimension, labelled and to be kept in core boxes. 6. The payment for the item would be paid in full if core recovery (CR) is greater than 50% , otherwise proportionate rate will be applicable for cases where CR is less than 50%. 7. Measurement of ground water level as per specifications & drawings. 8. Preparation and Maintenance of drilling records, field core logs and submission of final geological logs in hardcopy as well as soft copy (editable).

From rock level to 20 M

20 M to 40 M

40 M to 60 M

60 M to 80 M

80 M to 100 M

CONFIRMATORY SUB-SOIL INVESTIGATIONS: Same as item no. 15 except the Rotary boring/ drilling of ‘NX’ size holes vertically is through PCC (M15 grade) with adequate and suitable equipment for all depths as per 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 borehole/s, 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. Maintenance of drilling records and submission of final Concrete core logs in hardcopy as well as soft copy (editable). 4. Measurement of ground water level as per specifications & drawings. 5. Preparation and Maintenance of drilling records, field core logs and submission of final geological logs in hardcopy as well as soft copy (editable).

Plugging of bore holes as per technical specifications and as directed by Engineer-in-Charge using 1:2 cement-sand (weigh batched) grout for the holes drilled in soil/rock/PCC. Note: 1. The plugging of the hole shall be done using a tremie extending up to bottom of the hole and raising the same as the grouting proceeds. 2. The payment will be made in running metre for the depth of bore holes plugged. 3. The rate shall include the cost for cleaning the boreholes if blocked any, and the clearance for complete drilled depth must be ensured before plugging. 4. Plugging records shall be maintained in register and same shall be submitted to the Engineer-in-Charge

LABORATORY TESTS ON SOIL SAMPLES: Carrying out laboratory tests on soil samples in an NABL approved laboratory (pre-qualified or to be qualified by NPCIL), complete as per specifications and as directed by Engineer-in-Charge, including necessary transportation of samples in the unaltered condition to approved laboratories wherever required and preparation and submission of test reports in triplicate and one soft copy (editable).

Conducting grain size analysis, particle size & percent fines distribution of soil and soil classification (IS 1498), (sieve analysis & hydrometer or pipette analysis ) including grain size distribution curve as per drawings, specifications, IS 2720 (part-4) and as directed by the Engineer-in-Charge.

Conducting index properties of soil such as liquid limit, plastic limit and plasticity index etc as per drawings, specification, IS 2720 (Part 5), IS 9259 and direction of the Engineer-in-Charge. Three tests of each soil sample will be considered as one set.

Conducting CBR test on soil samples as per drawings, specifications, IS 2720 (Part 16) and as directed by the Engineer-in-Charge.

LABORATORY TESTS ON ROCK CORE SAMPLES: Carrying out laboratory tests on rock samples in an NABL approved laboratory (pre-qualified or to be qualified by NPCIL), complete as per specifications/IS Codes and as directed by Engineer-in-Charge, including necessary transportation of samples in the unaltered condition to approved laboratories wherever required and preparation and submission of test reports in triplicate and one soft copy (editable).

Dry/Bulk density as per IS 13030 as specified in the drawing or as directed by the EIC

Specific gravity as per IS 1122 as specified in the drawing or as directed by the EIC

Uniaxial compression test as per IS 9143 to determine un-confined compressive strength, Young's Modulus E and Poisson's ratio as per IS 9221 (With/Without Saturation of samples as applicable) as specified in the drawing or as directed by the EIC

Tensile test by Point load method as per IS 8764 (With/Without Saturation of samples as applicable) as specified in the drawing or as directed by the EIC

Conducting Triaxial compression strength with internal pressure up to 80 kg/cm2 as per IS 13047 (With/Without Saturation of samples as applicable) as specified in the drawing or as directed by the EIC Note: For measurement, one set means 3 samples with 3 different confining pressures.

Determination of water absorption as per IS 1124 and porosity as per IS 13030 as specified in the drawing or as directed by the EIC

CHEMICAL ANALYSIS TEST ON ROCK CORE SAMPLES: Conducting chemical analysis as per relevant IS Codes for the qualification of excavated rock as a material for Coarse aggregate to be used in the Concrete.

Testing for deleterious materials as per IS : 2386 (Part - 2)

Test for Alkali Aggregate Reaction as per IS: 2386 (Part-7) a) By Chemical method

Test for Alkali Aggregate Reaction as per IS: 2386 (Part-7) b) Mortal Bar method at 38 degree C regime

Test for Alkali Aggregate Reaction as per IS: 2386 (Part-7) c) Mortar Bar method at 60° C regime

Chemical analysis as per IS 2386 for Total alkali content as Na2O equivalent, Total Sulphate content as SO3 , Acid soluble chloride content as per IS: 383

Soundness of Aggregate tested with Sodium Sulphate and Magnesium Sulphate, as per IS: 2386 (Part 5)

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

Sonic velocity (High frequency ultrasonic pulse technique) by ASTM : D2845 method

FIELD TESTS: Conducting static plate load test on soil as per IS 1888 up to a depth of 5 m at specified locations up to an ultimate load of 100 T/Sq.m, for determining safe bearing capacity and modulus of sub grade reaction as per IS: 9214 at various locations and depths as per drawings, specifications and as directed by the Engineer-in-Charge (EIC), up to failure including preparation and submission of test reports in triplicate and one soft copy (editable). Note: The quoted rate shall be inclusive of preparation of the test surface, making access, mobilization and demobilization of all equipment, anchors, trusses, kentledge and jacks for tests etc, all materials, suitable & adequate skilled, semiskilled & unskilled personnel, preparation and submission of test reports etc. all complete as specified and required for executing the works under the scope of this item.

FIELD TESTS: Conducting Static plate load test on foundation rock as per IS: 1888 and specifications at the founding level up to 400 T/Sq.m or failure, whichever is earlier, as per drawings, specifications and as directed by the Engineer-in-Charge (EIC) including preparation and submission of test reports in triplicate and one soft copy (editable). Note: The quoted rate shall be inclusive of preparation of the test surface, making access, mobilization and demobilization of all equipment, anchors, trusses, kentledge and jacks for tests etc, all materials, suitable & adequate skilled, semiskilled & unskilled personnel, preparation and submission of test reports etc. all complete as specified and required for executing the works under the scope of this item.

FIELD TESTS: Carrying out pressure meter tests (Expansion type) tests in rock, up to 200 bars, in holes at specified depths for estimation of modulus of elasticity of rock etc. as per IS 12955, specifications and drawings in selected boreholes and as directed by the Engineer-in-Charge and establishment of elastic modulus and deformation modulus and safe bearing capacity including preparation and submission of test reports in triplicate and one soft copy (editable). Note: 1. Each nos. for measurement consist of conducting test at a particular depth in a drilled borehole as specified in drawings. 2. The contractor shall ensure that the test should be only terminated when 200 bars of pressure or 20 mm dilation whichever occurs first and obtained pressure versus dilation curve has positive slope. (Repetition due to non-conformance of the same, would not be paid separately) 3. The quoted rate shall be inclusive of preparation of the test surface, making access, mobilization and demobilization of all equipment, accessories etc, all materials, suitable & adequate skilled, semiskilled & unskilled personnel, preparation and submission of test reports etc. all complete as specified and required for executing the works under the scope of this item.

FIELD TESTS: Conducting vertical cyclic plate load test on foundation rock as per IS:5249 at the founding level up to 400 T/Sq.m or failure, whichever is earlier, as per drawings, specifications and as directed by the Engineer-in-Charge (EIC), including preparation and submission of test reports in triplicate and one soft copy (editable). Note: The quoted rate shall be inclusive of preparation of the test surface, making access, mobilization and demobilization of all equipment, anchors, trusses, kentledge and jacks for tests etc, all materials, suitable & adequate skilled, semiskilled & unskilled personnel, preparation and submission of test reports etc. all complete as specified and required for executing the works under the scope of this item.

FIELD TESTS: Digging pits, casting of RCC block and conducting concrete rock interface direct shear test as per IS:7746 inclusive of excavation of niche in rock, at the bottom of foundation level and other associated works complete including preparation and submission of test reports in triplicate and one soft copy (editable). Note: The quoted rate shall be inclusive of preparation of the test surface, making access, mobilization and demobilization of all equipment, accessories etc, all materials, suitable & adequate skilled, semiskilled & unskilled personnel, preparation and submission of test reports etc. all complete as specified and required for executing the works under the scope of this item.

GEO-PHYSICAL FIELD INVESTIGATION: Conducting Cross Hole Test for evaluating the primary (P) waves & shear (S) waves velocities in two mutually perpendicular directions as per technical specifications, drawings & instructions of Engineer-in-Charge at the intervals of 1.5 m up to the depths mentioned below. This also includes preparation and submission of test reports in triplicate and soft copy (editable). Note: 1. The quoted rate shall include mobilisation, demobilisation, hiring & operating charges of equipment, spares, consumables, manpower, overheads, profit, taxes, duties, royalties & other statutory levies. 2. The cost shall also include compilation & analysis of the result & preparation of the detailed report taking in to account the available geotechnical investigations data. The final report shall be submitted in soft (editable) and 05 hard copies. 3. The required bore holes (Nx size for rock/PCC portion) up to required depth for conducting the test (one source hole & 4 observation/receiver holes for each test shall be paid in the relevant item. However the cost of flushing/ cleaning of the holes shall be taken in to account while quoting the rates. 4. The bore holes deviation survey as per specifications shall also be included in the quoted rates. 5. The analysis for the CHST Raw data shall be performed by the software/s approved/ recommended by the supplier of equipment/s used for acquiring the raw data. 6. The quoted rate shall include the contractor performing mock-up for CHST Test and submitting the detailed methodology of picking time arrival of P & S waves from waveforms. 7. The payment for the item will be released in the following manner: 70 percentage after conducting, acquiring and submitting the raw data's to EIC for CHST Tests and the rest only after completion of analysis (including submission of time arrival marked waveforms for all the test conducted), compilation and final submission of the report .

Up to 30 m depth below the foundation level for various main plant buildings.

DRILLING FOR CONSOLIDATION GROUTING: Percussion drilling vertical holes of 76 mm Dia in overburden soil & disintegrated rock including supplying, fixing & removal of casing pipe of suitable size and removal & disposal of muck/ slush beyond main plant area etc.

DRILLING FOR CONSOLIDATION GROUTING: Drilling vertical holes of 76 mm Dia in the foundation hard rock/concrete by "Percussion" means up to a maximum depth of 25 m including removal & disposal of muck/ slush beyond main plant area etc.

CONSOLIDATION GROUTING BELOW FOUNDATIONS: (As per specifications & IS:6066) Pressure testing of hole with water to the specified pressure including providing, fixing and removing mechanical packers.

CONSOLIDATION GROUTING BELOW FOUNDATIONS: (As per specifications & IS:6066) Injecting grout under pressure including providing, fixing and removing mechanical packers as per technical specifications. The rate shall also include plugging of holes with cement mortar 1:2 after completion of grouting.

Cement (with/without mineral fillers)

Cement and sand grout mix

DRILLING FOR CONSOLIDATION GROUTING: Percussive drilling through grouted holes of 76 mm Dia as per drawing/s, specification or as directed by Engineer-in-Charge

PREPARATION & SUBMISSION OF REPORT: Preparation and submission of comprehensive draft (3 Copies) and final (6 copies) reports along with editable soft copies of all the confirmatory tests, field investigations, geophysical investigations, laboratory tests, geological mapping, consolidation grouting reports etc. in the scope of this tender as detailed in various items, specifications, drawings inclusive of bore logs , survey of discontinuities, compilation, interpretation, analysis of the data. The reports shall be proof checked by a renowned geotechnical expert from Government agencies like IITs/ IISc / NIRM / CWPRS / GSI to be approved by the Engineer-in-Charge. The Geotechnical expert proof checking the report shall present and defend the report along with recommendations during the meetings with AERB. The separate report for each confirmatory geotechnical/geophysical/laboratory test reports are to be prepared for individual buildings as per the drawing and to be submitted progressively on priority basis and a consolidated report needs to be submitted at the end covering all these buildings. These separate reports shall also be proof-checked by a renowned geotechnical expert from Government agencies like IITs/ IISc / NIRM / CWPRS / GSI to be approved by the Engineer-in-Charge. The following pro-rata basis is considered for the release of payment towards preparation of Comprehensive test and recommendation reports. First Nuclear Building: 20%, Second Nuclear Building: 20%, Control Building: 15%, SAB (4Nos.) & WMP: 20%, Other buildings put together: 10%, Consolidated Report: 5%, Rest 10% of the amount will be released only after approval of the reports from NPC-SRC/Other Committee as decided by EIC. However, the rate for preparation of the supplementary test reports for these additional tests, if any, is deemed to be included in the quoted rates and nothing will be paid extra.

PCC FOR MUD MAT/NON-STRUCTURAL FILL: MUD MAT / PCC: Supply, transport and placement of normal concrete of M15 grade at temperature not exceeding 38 deg. C for mass concrete/ lean concrete for foundation mud mat/non-structural fill for the main plant buildings and other structures as per the Technical specifications and as directed by the Engineer-in-Charge with coarse aggregate of maximum size not exceeding 20 mm including necessary formwork. Note: 1. The PCC can be either made with OPC cement without any mineral admixture or blending OPC cement with Fly ash as per Technical specifications. 2. The quoted rate shall include cost of formwork and formwork cost shall not be paid separately. 3. The rate shall include the expenses related to provisioning of green cutting for construction joint, addition of admixture/other material necessary for ensuring consistency and placement temperature for the PCC Concrete. 4. This rate shall also include the expenses related to the mock up of the item before taking up actual execution for the qualification as per technical specification. 5. The quoted rate shall include any cost related to preparation of detailed concrete casting scheme, design of concrete mix, etc subject to the approval of EIC.

PASSIVE ROCK ANCHORS: Supply of Rock anchor TMT bars of Fe- 500 grade, with Dia. of bars up to 45 mm as per technical specification and as directed by EIC for executing Item No. 35.

PASSIVE ROCK ANCHORS: Drilling 200 mm dia. vertical holes in hard rock / PCC /Re-drilling in grouted holes, supply & fabrication of anchor rod assembly (fabrication of anchor plate with rods of TMT bars of minimum Fe-500 grade with HDPE sheathing), shot blasting, painting one coat of minimum 75 micron DFT of Zinc silicate primer followed by approved epoxy paint of minimum 200 micron DFT and installation of fabricated anchor assembly, grouting by using approved non-shrink compound and sand cement grout, sealing with polysulphide compound, including all materials, labour, DP test on welding, testing to working load/ultimate load etc. complete as per drawings, specifications and instructions of Engineer-in-Charge. Note: 1. The payment for Rock anchor bars only shall be paid separately on tonnage basis and the quoted rate for this item includes the rate of other parts of the Rock anchor assembly. 2. The quoted rate should include for the qualification of the anchor system. 3. The rate should also include additional welding/coupler requirement & qualification as may be required for longer free available length as per the specifications.