基于蠕变试验的浅埋空区群结构时变力学特性研究 |
谷中元,周科平 |
Study on Time-Variant Mechanics Properties of Shallow Goaf Group Based on Creep Experiment |
Zhongyuan GU,Keping ZHOU |
图6 顶板应力及位移变化 (a)顶板第5年最大主应力;(b)顶板最大主应力曲线;(c)顶板竖向位移曲线 |
Fig.6 Stress and displacement variation of roof |