GEOTECHNICAL SURVEY

Mobilization and Demobilization of Automatic/Semi-automatic drilling rigs at site locations. Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.

Installation of floating platform such as anchored barge platform as deemed necessary for erection of drilling rig for boring under water having tidal effect, as per site condition including hiring of boats (for maximum 20 nos. boreholes) Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.

Exploratory drilling of 150 mm dia borehole at various location in all types of soil and gravel (including all necessary arrangements) using suitable approved method of drilling including providing casing pipe if required, performing auto-trip SPT at every 1.5 meter interval and at the change of strata, collection of disturbed and undisturbed soil sample at every 3 meter interval and at change of strata & transportation of all collected samples to the RITES Laboratory, Plot No.: 466, Faridabad, 68, Sector - 55, IMT, Faridabad, Haryana 121006 In Dry Area. (UPTO core recovery<=10%) 0-20m Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.

Exploratory drilling of 150 mm dia borehole at various location in all types of soil and gravel (including all necessary arrangements) using suitable approved method of drilling including providing casing pipe if required, performing auto-trip SPT at every 1.5 meter interval and at the change of strata, collection of disturbed and undisturbed soil sample at every 3 meter interval and at change of strata & transportation of all collected samples to the RITES Laboratory, Plot No.: 466, Faridabad, 68, Sector - 55, IMT, Faridabad, Haryana 121006 In River Bed Area. (UPTO core recovery<=10%) 0-20m Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.

Exploratory drilling of vertical boreholes of NX size (76mm diameter) in all types of Boulders & weathered rock by double tube/triple tube core barrel diamond drilling and collection of rock core samples from boreholes at specified depths & transporting selected rock core samples to RITES Laboratory, Plot No.: 466, Faridabad, 68, Sector - 55, IMT, Faridabad, Haryana 121006. Weathered rock is considered where core recovery is more than 10 % and up to 50%.0-50m Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.

Exploratory drilling of vertical boreholes of NX size (76mm diameter) in fresh and hard rock by double tube/triple tube core barrel diamond drilling and collection of rock core samples from boreholes at specified depths & transporting selected rock core samples at RITES Laboratory, Plot No.: 466, Faridabad, 68, Sector - 55, IMT, Faridabad, Haryana 121006. Fresh and hard rock is considered where core recovery is more than 50%. 0-50m Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.

Collection of water samples at required intervals Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.

Conducting chemical analysis of ground water samples to determine suitability for concreting and aggressiveness in relation to attack on concrete / reinforcement including determination of pH value Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.

Conducting chemical analysis of soil samples to determine aggressiveness in relation to attack on concrete / reinforcement including determination of pH value. Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.

Hardness Test Stage wise payment is applicable as per Clause 2.8 of Section VII of tender document.