分级循环荷载下保护层开采扰动煤岩强度及裂隙特性研究
Strength and fracture characteristics of coal rock disturbed by protective layer mining under graded cyclic loading
分级循环荷载下保护层开采扰动煤岩强度及裂隙特性研究 |
| 杨永波,周哲 |
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Strength and fracture characteristics of coal rock disturbed by protective layer mining under graded cyclic loading |
| Yong-bo YANG,Zhe ZHOU |
| 图 1 己14-31050和己15-31030煤层空间位置及样品制备 |
| Fig.1 Spatial position and samples preparation of Ji14-31050 and Ji15-31030 coal seams |
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