| 不同采煤方法对冲击地压影响的研究 |
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| 引用本文： | 张当俊,靳钟铭,康天合.不同采煤方法对冲击地压影响的研究[J].太原理工大学学报,2006,37(6):676-679. |
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| 作者姓名： | 张当俊 靳钟铭 康天合 |
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| 作者单位： | 1. 太原理工大学,采矿工艺研究所,山西,太原,030024;山西煤炭管理干部学院,山西,太原,030006
2. 太原理工大学,采矿工艺研究所,山西,太原,030024 |
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| 摘 要： | 根据两种采煤方法在大同矿区忻州窑煤矿两个盘区产生冲击地压程度不同的事实,通过现场观测、数值模拟和对工作面前方支承压力分布的理论分析,以及裂隙分布的分形统计,归纳出放顶煤开采使支承压力峰值降低、分布范围扩大、顶煤裂隙发育的规律,阐明放顶煤开采使冲击地压强度减弱的机理,得出放顶煤开采可有效减少冲击地压发生的结论。
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| 关 键 词： | 冲击地压 采煤方法 支承压力 裂隙 分维 |
| 文章编号： | 1007-9432（2006）06-0676-04 |
| 收稿时间： | 2006-01-02 |
| 修稿时间： | 2006年1月2日 |
Study on Influence of Different Mning Methods on Rockburst |
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| ZHANG Dang-jun,JIN Zhong-ming,KANG Tian-he.Study on Influence of Different Mning Methods on Rockburst[J].Journal of Taiyuan University of Technology,2006,37(6):676-679. |
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| Authors: | ZHANG Dang-jun JIN Zhong-ming KANG Tian-he |
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| Institution: | 1. Institute of Mining Technology of TUT, Taiyuan 030024, China ; 2. Shanxi Coal-mining Administrators College, Taiyuan 030006,China |
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| Abstract: | According to the fact that two different kinds of mining methods give rise to the different degrees of rockburst in two panels of Xinzhouyao mine in Da Tong,through the observation on the spot,numerical simulation and theoretical analysis of supporting stress on frontage of coalface,and fractal statistics of distribution of cranny,a law is concluded that peak value of supporting stress plays down and region of distribution of supporting stress extends,cranny of top coal develops.At the same time the mechanism is illustrated that top coal caving weakens strength of rockburst,and the conclusion can be obtained that top coal caving can reduce effectively the happening of rockburst. |
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| Keywords: | rockburst mining methods supporting stress cranny fractal dimension |
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