Geological Strength Index
Encyclopedia
The Geological Strength Index (GSI) system, proposed in 1995, is now widely used for the estimation of the rock mass strength and the rock mass deformation
parameters. The GSI system concentrates on the description of two factors, rock structure and block surface conditions. The guidelines given by the GSI system are for the estimation of the peak strength parameters of jointed rock masses. There are no guidelines given by the GSI, or by any other system, for the estimation of the rock mass’ residual strength
that yield consistent results.
Deformation
In materials science, deformation is a change in the shape or size of an object due to an applied force or a change in temperature...
parameters. The GSI system concentrates on the description of two factors, rock structure and block surface conditions. The guidelines given by the GSI system are for the estimation of the peak strength parameters of jointed rock masses. There are no guidelines given by the GSI, or by any other system, for the estimation of the rock mass’ residual strength
Residual strength
Residual strength is the load or force that a damaged object or material can still carry without failing....
that yield consistent results.
Further reading
- Pantelidis L. (2009) "Rock slope stability assessment through rock mass classification systems" International Journal of Rock Mechanics and Mining Sciences, 46(2):315–325.