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 |
Strength and fracture characteristics of coal rock disturbed by protective layer mining under graded cyclic loading |
Yong-bo YANG,Zhe ZHOU |
图 6 煤样的裂隙三维重构及提取 |
Fig.6 Fracture three-dimensional reconstruction and extraction of coal sample |
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