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Numerical Simulation of Roof Damage and Possibility Analysis of Water Outburst for Deep Coal Seam in Large Reverse Fault Footwall
Author(s): 
Pages: 39-41
Year: Issue:  11
Journal: SAFETY IN COAL MINES

Keyword:  逆断层裂隙高度顶板突水UDEC数值模拟关键层;
Abstract: 结合某矿732工作面实际工程情况,利用UDEC软件对煤层顶板破坏高度进行数值模拟研究,分析受采动荷载影响下煤层顶板破坏高度随工作面推进距离的关系,得出煤层顶板最大破坏高度约为88 m,指出该破坏高度将与F16逆断层上盘灰岩沟通;进一步分析实际地质资料和岩溶发育终止深度规律,得出灰岩裂隙水量不大,为工作面安全开采提供意见,并且得到实际工程的验证.
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