| 留小煤柱沿空掘巷位置及支护设计 |
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| 引用本文： | 周贤,朱守颂.留小煤柱沿空掘巷位置及支护设计[J].煤矿安全,2012,43(11):136-138. |
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| 作者姓名： | 周贤 朱守颂 |
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| 作者单位： | 1. 陕西华彬煤业股份有限公司下沟煤矿,陕西彬县,713500
2. 永煤集团公司新桥煤矿,河南永城,476600 |
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| 摘 要： | 采用钻孔应力计实测研究得出了侧向支承压力峰值距离煤壁10 m,确定煤柱宽度5.0m。回采期间,沿空煤柱受回采影响范围和程度均有减小趋势。在该矿地质条件下,通过合理的煤柱宽度选择,在煤柱进入采空区时仍会保持部分稳定未破坏区域。
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| 关 键 词： | 沿空掘巷 应力降低区 小煤柱 钻孔应力计 |
Gob-side Entry Driving Position of Small Pillar and Support Design |
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| ZHOU Xian,ZHU Shou-song.Gob-side Entry Driving Position of Small Pillar and Support Design[J].Safety in Coal Mines,2012,43(11):136-138. |
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| Authors: | ZHOU Xian ZHU Shou-song |
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| Affiliation: | 1.Shanxi Huabin Coal Industry Co.,Ltd.,Bin County 713500,China;2.Xinqiao Coal Mine,Yongcheng Coal Group Company,Yongcheng 476600,China) |
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| Abstract: | Using borehole stress gauges to measure and research that the lateral abutment pressure peak is from coal wall 10 m,and determine that the coal pillar width is 5.0 m.Gob-side entry coal pillar influenced by mining extent are reduced tendency.Gob-side entry coal pillar will remain stable part without damaging area through a rational choice coal pillar width under the mine geological conditions. |
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| Keywords: | road driving along next goaf stress reduce area small pillar borehole stress |
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