| 高位复合顶板综采面矿压规律研究 |
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| 引用本文： | 苏学贵,李彦斌,李浩春.高位复合顶板综采面矿压规律研究[J].太原理工大学学报,2011,42(6):628-629. |
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| 作者姓名： | 苏学贵 李彦斌 李浩春 |
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| 作者单位： | 太原理工大学矿业工程学院,大原,030024 |
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| 摘 要： | 针对高位复合泥岩顶板煤层回采期间顶板来压变化复杂等问题,结合离石煤矿4号煤顶板特厚复合特性,对其综采工作面实施矿压观测。研究表明:该类顶板周期来压步距差异大,来压步12.6 m,动压系数为1.33,来压强度沿工作面呈近似抛物线形分布,综采支架载荷强度频率符合正态分布特征。
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| 关 键 词： | 复合顶板 综采面 矿压规律 |
Study on Strata Pressure of Extra-thick Compound Roof in a Full-mechanized Mining Face |
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| SU Xue-gui,LI Yan-bin,LI Hao-chun.Study on Strata Pressure of Extra-thick Compound Roof in a Full-mechanized Mining Face[J].Journal of Taiyuan University of Technology,2011,42(6):628-629. |
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| Authors: | SU Xue-gui LI Yan-bin LI Hao-chun |
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| Institution: | SU Xue-gui,LI Yan-bin,LI Hao-chun(College of Mining Engineering of TUT,Taiyuan 030024,China) |
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| Abstract: | Using the characteristics of 4# coal of Lishi Coal Mine obtained through the field measurement of strata-pressure,this paper analyzed the strata-pressure behavior of full-mechanized mining face.The results show that: the pressure step of this type of roof varies greatly,periodic weighting lengths is 12.6 m,the dynamic load coefficient is 1.35,and the pressure strength along the working face is approximately like a parabola;the fully mechanized support load frequency fits the normal distribution. |
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| Keywords: | compound roof full-mechanized mining face strata-pressure behavior |
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