uniaxial compressive strength of rock

11 Rock mass properties - Strona główna AGH- uniaxial compressive strength of rock ,σci is the uniaxial compressive strength of the intact rock pieces. The Mohr envelope, relating normal and shear stresses, can be determined by the method proposed by Hoek and Brown (1980a).rock compressive strength - perkinspreschool.com · the uniaxial compressive strength of soft rock - Civil Engineering . Soft rock is a term that usually refers to a rock material with a uniaxial compressive strength (UCS) less than. 20 MPa. This low strength range might be