Abstract:Triaxial shear tests are performed to assess the effects of displacement velocity and confining pressure on shear strengths and dilations of tension-induced fractures and smooth saw-cut surfaces prepared in granite, sandstone and marl specimens. A polyaxial load frame is used to apply confining pressures between 1 and 18 MPa with displacement velocities ranging from 1.15×10 -5 to 1.15×10 -2 mm/s. The results indicate that the shearing resistances of smooth saw-cut surfaces tend to be independent of the displac… Show more
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