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Rock Stability 

GEO5

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Barton - Bandis

The Barton-Bandis shear strength failure criterion for the rock mass takes the following form:

where: JRC - joint roughness coefficient
σn - normal stress acting on the surface of the rock joint
JCS - joint compressive strength
φb - basic angle of internal friction of the slip surface

If possible the shear strength parameters should be determined from in-situ measurements.

Approximate ranges of parameters of the Barton-Bandis failure criterion are given here.


Literature:

Bromhead, EM (1992). “The Stability of Slopes (2nd Edition)”, Blackie Academic & Professional: London




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