| 范各庄矿5煤顶板破坏及突水模拟研究 |
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| 引用本文： | 刘洪磊,杨天鸿,朱万成,于庆磊,陈仕阔.范各庄矿5煤顶板破坏及突水模拟研究[J].采矿与安全工程学报,2009,26(3). |
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| 作者姓名： | 刘洪磊 杨天鸿 朱万成 于庆磊 陈仕阔 |
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| 作者单位： | 东北大学,岩石破裂与失稳研究中心,辽宁,沈阳,110004 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目，国家自然科学基金重大项目，国家自然科学基金项目，教育部重点科技项目，教育部新世纪优秀人才基金项目 |
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| 摘 要： | 根据范各庄5煤顶板的水文地质条件,应用岩石破裂过程渗流-应力耦合分析系统(RFPA2D-Flow)模拟采动条件下顶板损伤、破断的演化形成全过程.通过对损伤区和应力场分布及顶板水流量变化曲线进行分析,揭示了开采扰动及水压驱动下完整泥岩顶板由隔水岩层到突水通道的演化机理.同时,讨论了隔水泥岩层厚度与顶板突水的关系.结果表明:顶板存在大范围的拉应力区域,含水砂岩和顶板泥岩交界应力集中是造成顶板突水的关键;顶板隔水泥岩层的强度不足以起到关键层的保护作用,对采场保护不够,应对顶板泥岩层进行加固或留设防水煤柱.
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| 关 键 词： | 范各庄煤矿 顶板突水 顶板隔水层 数值模拟 |
Investigation on Failure and Water Inrush from Roof of 5th Coal Seam in Fangezhuang Coal Mine |
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| LIU Hong-lei,YANG Tian-hong,ZHU Wan-cheng,YU Qing-lei,CHEN Shi-kuo.Investigation on Failure and Water Inrush from Roof of 5th Coal Seam in Fangezhuang Coal Mine[J].Journal of Mining and Safety Engineering,2009,26(3). |
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| Authors: | LIU Hong-lei YANG Tian-hong ZHU Wan-cheng YU Qing-lei CHEN Shi-kuo |
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| Affiliation: | Center for Rock Instability and Seismicity Research;Northeastern University;Shenyang;Liaoning 110004;China |
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| Abstract: | Based on researching into hydro-geological conditions of 5th coal seam roof in Fangezhuang coal mine,the author applies the coupling system of flow & solid in rock failure process analysis to simulate the whole process of damage and failure about 5th coal seam roof.With the analysis of damage distribution,stress and the roof seepage curves,the evolution mechanism of the process from water-resisting strata to inrush pathway about the roof of complete mudstone under the condition of mining disturbance and hyd... |
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| Keywords: | Fangezhuang coal mine roof water inrush water-resisting roof layer numerical simulation |
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