%0 Journal Article %T 煤岩组合体循环加卸载变形及裂纹演化规律研究 %A 陈岩 %A 左建平 %A 宋洪强 %A 冯路路 %A 邵光耀 %J 采矿与安全工程学报 %D 2018 %K coal-rock combined body residual strain elastic strain crack strain nonlinear model %U http://ckxb.cumt.edu.cn/CN/abstract/abstract1155.shtml