4SWANSON R S, BROWN W S. An Observation of Load- ing Path Independence of Fracture Rock[ J ]. Internation- al Journal of Rock Mechanics and Mining Sciences, 1971, 8(3) : 277 -281.
5CROUCH S L. A Note on Post-Failure Stress-Strain Path Dependence of Fracture Rock [ J ]. International Journal of Rock Mechanics and Mining Sciences, 1972, 9 (2) : 197 - 204.
6STACEY T R. A Simple Extension Strain Criterion for Fracture of Brittle Rock [ J ]. International Journal of Rock Mechanics and Mining Sciences, 1981, 18 (6) : 469 - 474.
7STACEY T R. Contribution to the Mechanism of Core Disking[ J]. Journal of the South African Institute of Min- ing and Metallurgy, 1982, 18:269-274.
8BROWN E T, TROLLOPE D H. The Failure of Linear Brittle Materials under Effective Tensile Stress[ J]. Fels- mechanik und Ingenieurgeologie, 1967, 4 ( 1 ) :. 229 - 241.