STRENGTH BEHAVIOR OF ROCKMASS CONTAINING COPLANAR CLOSE INTERMITTENT JOINTS UNDER DIRECT SHEAR CONDITION
共面闭合断续节理岩体的直剪强度研究

On the basis of model testing results,the deformation and fracture mechanism of brittle rockmass containing coplanar close intermittent joints under direct shear condition are analyzed,and the criteria of fracture initiation strength and failure strength of such rockmass are proposed. The calculated results fit in well with experimental results,which indicates that the criteria are reasonable and reliable.