采场覆岩空间破裂与采动应力场的微震探测研究
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摘要
介绍了用微地震定位监测技术揭示的采场覆岩空间破裂与采动应力场的关系。认为存在 4种由采动引起的岩体破裂类型。展示了 3种典型采动边界条件下覆岩破裂与采动应力场的关系。提出了由微震事件分布推断区段煤柱稳定性的方法。
This paper introduces the relationship between spatial structure of overlying strata and mining pressure field in longwall face revealed by microseismic monitoring techniques. The authors come to conclusions as follows :There are four kinds of rock mass fractures induced by mining. This paper presents three kinds of relations between rock mass fractures and mining pressure fields matching to three kinds of mining borders. The authors point out the method of how to decide the stability of coal pillar according to microseismic monitoring results.
引文
[1]窦林名,何学秋.冲击矿压防治理论与技术[M ].徐州:中国矿业大学出版社,2001.170-176.
    [2]钱鸣高,缪协兴,等.岩层控制的关键层理论[M ].徐州:中国矿业大学出版社,2000.17-28.
    [3]骆 循,姜福兴.岩体破裂微动监测在矿山灾害治理中的新进展[A].中国科协第四届青年学术年会文集[C].北京:中国科学技术出版社,2001.194-195.
    [4]姜福兴,XunLuo.微震监测技术在矿井岩层破裂监测中的应用[J].岩土工程学报,2002,24(2):147-149.

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