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