| 采场底板突水条件及位置分析 |
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| 引用本文： | 施龙青,宋振骐.采场底板突水条件及位置分析[J].煤田地质与勘探,1999,27(5):49-51. |
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| 作者姓名： | 施龙青 宋振骐 |
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| 作者单位： | 山东矿业学院矿压所,泰安,271019 |
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| 摘 要： | 分析采场突水条件和位置是突水预测的基础，根据采场支撑压力发展规律和底板应力分布特征，进行了突水条件突水位置的研究，底板突水的条件矿压对底板的破坏使其有效隔水层厚度降为零和水压不小于卸压区的侧向压力，在采场的内外应力场形成之前，突水位置在采空区；内外应力场形成之后，突水位置在煤壁附近。
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| 关 键 词： | 突水 底板 应力分析 条件 位置 |
A ANALYSES ABOUT THE CONDITIONS AND THE SITE OF WATER INRUSH FROM MINING FLOOR |
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| Shi Longqing,Song Zhenqi.A ANALYSES ABOUT THE CONDITIONS AND THE SITE OF WATER INRUSH FROM MINING FLOOR[J].Coal Geology & Exploration,1999,27(5):49-51. |
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| Authors: | Shi Longqing Song Zhenqi |
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| Institution: | Shandong Institute of Mining & Technology |
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| Abstract: | A analysis about the conditions of water inrush form mining floor and its site are based of forecasting water inrush.Based on the developing law of supporting pressure and the distributive characteristics of floor stress,this paper analyses the conditions of water inrush from mining floor and its site.The conditions of water inrush are as follows,the floor is broke by mining pressure,with the result that valid thickness of aquifuge is reduced to zero,and water pressure is not less than side pressure in unload area.Before inside and outside stress is formed,the site of water inrush is situated on the waste.After inside and outside stress is formed,that is situated closed to the wall. |
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| Keywords: | water inrush floor stress analysis condition site |
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