基于光学窥视的破碎顶板岩层动态破裂特征Analysis of strata dynamic crack characteristics upon fractured roof based on optical peephole
胥海东;蒋东晖;邹磊;曹建涛;来兴平;
摘要(Abstract):
宽沟煤矿处于我国西北强地震区域,地质和地球物理特征以及岩体结构复杂。利用钻孔光学窥视装置及系统,探测了E1142轨道平巷顶板岩层动态破裂特征,统计分析了裂隙分布规律。结果表明:顶板岩体裂隙以纵向裂隙分布为主,主要集中在顶板浅部,在巷道肩窝处的裂隙较为集中,这对巷道的控制与加固具有指导意义。
关键词(KeyWords): 强震区;破碎顶板;光学窥视装置;破裂特征;裂隙分布规律
基金项目(Foundation): 国家自然科学基金项目(10772144;10402033)
作者(Author): 胥海东;蒋东晖;邹磊;曹建涛;来兴平;
Email:
DOI: 10.13800/j.cnki.xakjdxxb.2009.03.006
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