SCR Construction Organization: Hyderabad Division - Proposed Doubling between Mudkhed and Medchal Stations - Sirnapalli-Uppalavai Section - Carrying out Survey, Design and Geotechnical Investigations for the proposed tunnel (2.00 km long) between Sirnapalli and Uppalavai stations and on the diversion alignment (7.50 km) including preparation of Detailed Project Report, plans, drawings, land proposals and other relevant documents between Sirnapalli and Uppalavai stations (10.45 km).

A-Geological, Geotechnical and Geophysical Investigation Works for

C-Geotechnical Investigation Works for Alignment Excluding Proposed

Exploratory drilling of boreholes down to required depth, drilling of 150mm dia. 1 boreholes in all type of soils except hard rock & large boulders (boulder core more than 30cm) including refilling, reinstating surface and disposing off surplus material including use of mechanical rigs with power operated winches as well as percussion/chiselling tool for advancing through occasional seams of hard strata to be employed, where necessary in Dry area. 0m to 10m

Exploratory drilling of boreholes down to required depth, drilling of 150mm dia. 2 boreholes in all type of soils except hard rock & large boulders (boulder core more than 30cm) including refilling, reinstating surface and disposing off surplus material including use of mechanical rigs with power operated winches as well as percussion/chiselling tool for advancing through occasional seams of hard strata to be employed, where necessary in Dry area. 10m to 20m

Exploratory drilling of Boreholes down to required depth, drilling of 150mm diameter boreholes in all type of soils except hard rock and large boulders (boulder core more than 30cm), including refilling, reinstating surface and disposing off surplus material including use of mechanical rigs with power operated winches as well as percussion / chiselling tool for advancing through occasional seams of hard strata to be employed where necessary in River bed area including standing/flowing water with all necessary arrangements except making of platform under water which shall be paid under relevant item of SOR. 0m to 10m

Exploratory drilling of Boreholes down to required depth, drilling of 150mm diameter boreholes in all type of soils except hard rock and large boulders (boulder core more than 30cm), 4 including refilling, reinstating surface and disposing off surplus material including use of mechanical rigs with power operated winches as well as percussion / chiselling tool for advancing through occasional seams of hard strata to be employed where necessary in River bed area including standing/flowing water with all necessary arrangements except making of platform under water which shall be paid under relevant item of SOR. 10m to 20m

Drilling of NX size borehole (75mm dia.) in all types of hard rock and collection of rock core samples from boreholes and preserving in boxes. 0m to 10m

Drilling of NX size borehole (75mm dia.) in all types of hard rock and collection of rock core samples from boreholes and preserving in boxes. 10m to 20m

Conducting in-situ full size Plate Load Test (PLT) at selected location as per IS:1888 including making loading arrangements & casting of RCC/cast in-situ concrete footing as per codal provisions including excavation and refilling of trial pit. Plate size 60cm x 60cm

Conducting in situ Vane shear test for soil as per IS:4434

Conducting DCPT for soil as per IS:4968

Conducting determination of California Bearing Ratio as per IS:2720

Taking out 100mm dia. & 450mm long undisturbed samples of soil from bore holes, 11 including provision of air tight containers for packing and, labeling incl. transporting the samples to laboratory. Piston sampler shall be used for extracting undisturbed samples where necessary. Samples shall be collected as per IS:2720.

Taking out 100mm dia. & 450mm long disturbed samples of soil from bore holes, including provision of air tight containers for packing, labeling and transporting the samples to laboratory. Samples shall be collected as per IS:2720.

Conducting standard penetration test as per IS:2131 at approximate1.5m intervals in bore holes, as directed by the Engineer in charge

Collection of water samples at required intervals

Conducting laboratory Tests on collected soil samples as per relevant IS code Moisture Content/Dry Density

Conducting laboratory Tests on collected soil samples as per relevant IS code Atterberg Limits

Conducting laboratory Tests on collected soil samples as per relevant IS code Specific Gravity

Conducting laboratory Tests on collected soil samples as per relevant IS code Grain size analysis including Hydrometer analysis

Conducting laboratory Tests on collected soil samples as per relevant IS code Direct Shear Test

Conducting laboratory Tests on collected soil samples as per relevant IS code Natural Density

Conducting laboratory Tests on collected soil samples as per relevant IS code Consolidation Test

Conducting laboratory Tests on collected soil samples as per relevant IS code Unconfined Compression Test

Conducting laboratory Tests on collected soil samples as per relevant IS code Tri- axial Test

Conducting Laboratory tests on collected ROCK SAMPLES as per relevant IS code Density Test

Conducting Laboratory tests on collected ROCK SAMPLES as per relevant IS code Water Absorption & Porosity

Conducting Laboratory tests on collected ROCK SAMPLES as per relevant IS code Hardness

Conducting Laboratory tests on collected ROCK SAMPLES as per relevant IS code Unconfined Compression Test

Conducting Laboratory tests on collected ROCK SAMPLES as per relevant IS code Point Load Test

Conducting Laboratory tests on collected ROCK SAMPLES as per relevant IS code Modulus of Elasticity

Conducting Laboratory tests on collected ROCK SAMPLES as per relevant IS code Abrasion Testing

Conducting chemical analysis of ground water samples to determine suitability for concreting a n d aggressiveness in relation to attack on concrete / reinforcement including determination of pH value.

Conducting chemical analysis of soil samples to determine aggressiveness in relation to attack on concrete / reinforcement including determination of pH value Above/