Experimental Study on the Micro Failure Mechanism of Jinchuan Soft Rock

Jinchuan ore-rock failure surface micro test is carried out under creep states to study the micro failure character and its mechanism. Based on the test and study, the mechanism of the creep of Jinchuan ore-rock is obtained. The micro failure mechanism of Jinchuan Mine soft rock is brittle fracture under the condition of the comprehensive effect of stretch and shear action. Based on the research of microcosmic creep morphology, the relationship between the creep evaluation process and the micro fracture appearance characteristic, the creak nucleation, the creak propagation and the fracture way is revealed.