Shri Mahabir Dixit, Scientist ‘E’
Rock Mechanics -Lab group comprises of Rock Mechanics Laboratory division and Workshop and Instrumentation division. The main activities are:
- For detailed and controlled testing of responses of rock under different loading conditions, the Rock Engineering Laboratory is well-equipped to undertake the holistic assessment of the detached rock. The properties determined are:
o Physical Properties (Dry, saturated and grain densities; apparent Porosity
and water content at saturation)
o Slake Durability Index
o Strength and Deformability Characteristics of Intact Rock in Uniaxial
Compression (UCS, Tangent Modulus and Poisson Ratio)
o Assessment of shear strength properties through triaxial compression
(Apparent Cohesion and Angle of Internal Friction)
o Direct shear test on rock discontinuties
o Assessment of Hoek and Brown parameters of intact rock
(m and s parameters)
o Indirect Tensile Strengths of Rock
o Compressive and Shear Wave velocities in rock
o Point Load Strength Index
o Schmidt Hammer Rebound Number
o Dorry Abrasion Value
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Instrumentation division is involved in the Hydro-electric Projects at the pre-construction stage, construction stage, and remains active even during the post-commissioning stage. To gain confidence in the functioning/safety of the structures involved, and to check the assumptions involved in the design of the structures, crucial importance of instrumentation cannot be over-emphasised.
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Monitoring the health of the existing structures.
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Dissemination of expertise to in-service engineers of various State Government Departments by establishing regional testing laboratories and impart training in laboratory testing on rock.
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Impart training to engineers from within the country and from overseas for investigation and testing in the fields of Geotechnical Engineering.
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Testing for UCS and deformation characteristics
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Slake Durability Test
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