煤矸石的强度特性

本文首先讨论煤矸石的应力-应变、抗剪强度二者与试样尺寸的关系;其次,研究二者的试验变形速率效应;其三,研究其应力-应变的归一化性态;最后,用松弛和蠕变相耦合的方法来研究煤矸石的强度变化现象,从另一侧面探讨土的长期强度降低机理。

Strength Properties of Gangue

This paper firstly presents relationship between stress-strain,shear strength and size sample of gangue.Secondly studies the effect of the deformation rate on both of them,and then deals with the normalized behaviour of stress-strain of gangue and fi- nally discusses variation of shear strength researched by the relaxation-creep coupling method.The decreased mechanism of long-term strength is explained in another aspect.