| 深井沿空掘巷小煤柱合理宽度留设数值模拟研究 |
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| 引用本文： | 朱若军,郑希红,徐乃忠.深井沿空掘巷小煤柱合理宽度留设数值模拟研究[J].地下空间与工程学报,2011,7(2):300-305,310. |
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| 作者姓名： | 朱若军 郑希红 徐乃忠 |
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| 作者单位： | 国投新集能源股份有限公司刘庄煤矿;安徽理工大学能源与安全学院; |
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| 摘 要： | 窄煤柱沿空掘巷是提高煤炭采出率的有效方法之一,本文通过数值计算方法,研究了沿空掘巷不同煤柱宽度和巷道支护强度时煤柱的应力场和位移场,提出沿空掘巷小煤柱的合理宽度的留设方法.研究结果表明:巷道掘进期间,煤柱较窄时,煤柱内中心位置承受的最大垂直应力随煤柱宽度增加变化较大,当煤柱宽度达到5 m后,增大煤柱宽度,最大垂直应力变...
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| 关 键 词： | 深井 沿空掘巷 煤柱宽度 数值计算 |
Study on the Reasonable Pillar Width of Roadway Driving Along Goaf in Deep Mine |
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| Zhu Ruojun,Zheng Xihong,Xu Naizhong.Study on the Reasonable Pillar Width of Roadway Driving Along Goaf in Deep Mine[J].Chinese Journal of Underground Space and Engineering,2011,7(2):300-305,310. |
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| Authors: | Zhu Ruojun Zheng Xihong Xu Naizhong |
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| Affiliation: | Zhu Ruojun1,Zheng Xihong1,Xu Naizhong2 (1.Liuzhuang Mine of State Xinji Energy Co.,Ltd.,Anhui,Fuyang 610031,China,2.Anhui University of Science & Technology Institute of Energy and security,Huainan 232001,China) |
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| Abstract: | Narrow coal pillar driving along Goaf is one of the effective method to increase the recovery rate of coal.The stress and displacement under different coal pillar width and roadway support were studied,the distribution characteristics of pillar stress and displacement field,and a reasonable pillar width of roadway driving along goaf was proposed.The maximum stress in the coal pillar increased with the increasing of coal pillar width during coal roadway excavation,this increasing was already not obvious afte... |
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| Keywords: | deep mine roadway driving along goaf pillar width numerical simulation |
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