| 煤层开采过程中底板岩层渗流稳定性分析 |
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| 引用本文： | 徐海燕 肖洪天. 煤层开采过程中底板岩层渗流稳定性分析[J]. 地质与勘探, 2001, 37(5): 91-93 |
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| 作者姓名： | 徐海燕 肖洪天 |
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| 作者单位： | 1. 山东科技大学土建学院
2. 山东科技大学资环学院 |
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| 基金项目： | 国家自然科学基金项目资助 (NO .5 99740 15 ) |
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| 摘 要： | 在我国华北煤田石炭－二叠纪煤系地层的底部，存在着含水丰富的奥陶纪石灰岩。由于受采动的影响，煤层岩层的渗透能力会发生明显的变化，有时会导致承压水突入采空区。应用现场实验成果，利用有限元方法计算了底板岩体渗流场；在此基础上，进行了采动和渗流对煤层底板岩体稳定性影响的有限元分析计算。
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| 关 键 词： | 矿井突水 渗流 采动 稳定性 煤层开采 底板 岩层 承压水 |
| 文章编号： | 0495-5331(2001)05-0091-03 |
| 修稿时间： | 2001-02-27 |
SEEPAGE STABILITY ANALYSIS OF FOOTWALL STRATA DURING COAL MINING |
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| XU Hai-yan,XIAO Hong-tian. SEEPAGE STABILITY ANALYSIS OF FOOTWALL STRATA DURING COAL MINING[J]. Geology and Prospecting, 2001, 37(5): 91-93 |
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| Authors: | XU Hai-yan XIAO Hong-tian |
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| Abstract: | Below Carboniferous-Permian coal-bearing formations in coal fields of North China, there is a stratum of Ordovician limestone containing an abundant supply of water. Because of the influence of mining, the permeability of footwall strata varies obviously. Confined water from Ordovician limestone might inrush into gob region. Based on in situ data, the permeability field of footwall rocks is evaluated by the finite element method (FEM). The influence of mining and seepage on footwall rocks is analyzed by the computer program of FEM. |
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| Keywords: | inrush seepage mining stability |
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