| 朱集煤矿导水断层边界防水煤柱合理留设研究 |
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| 引用本文： | 李阳,刘春平,孙明聪,王景丽,陶威.朱集煤矿导水断层边界防水煤柱合理留设研究[J].地下水,2012(2):18-19. |
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| 作者姓名： | 李阳 刘春平 孙明聪 王景丽 陶威 |
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| 作者单位： | 西北大学大陆动力学国家重点实验室/地质学系;淮南矿业集团朱集煤矿 |
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| 摘 要： | 朱集煤矿1111(1)工作面以F29断层为北边界,F29断层落差35 m,倾角70°,断层切割上下含水层,为较大导水正断层。在布置采煤工作面时,需留设断层边界防水煤柱。根据淮南矿区经验,留设防水煤柱一般取经验值80～100 m,故1111(1)工作面布置至F29断层前100 m。根据科学计算,得出准确防水煤柱宽度为60 m,这样既能提供矿井安全回采的科学依据,又能减少压煤量,提高回采量。并可为今后其他采煤工作面留设防水煤柱提供参考。
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| 关 键 词： | 采煤工作面 导水断层 防水煤柱 保护带 |
Rational Width of Waterproof Coal Pillar of the Water Conduction Fault in Zhuji Coal Mine |
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| LI Yang,LIU Chun-ping,SUN Ming-cong,WANG Jing-li,TAO Wei.Rational Width of Waterproof Coal Pillar of the Water Conduction Fault in Zhuji Coal Mine[J].Groundwater,2012(2):18-19. |
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| Authors: | LI Yang LIU Chun-ping SUN Ming-cong WANG Jing-li TAO Wei |
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| Institution: | 1(1.State Key Laboratory of Continental Dynamics/Department of Geology,Northwest University,Xi’an 710069,Shaanxi;2.Zhuji Coal Mine,Huainan Mining Group,Huainan 232001,Anhui) |
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| Abstract: | The 1111(1) coalface of Zhuji Coal Mine is adjacent to the boundary of a fault which is named F29.The F29 fault throw 35m,dip Angle 70 °.It cuts the upper and lower aquifers,and be identified as a larger water conduction fault.That mean,it needs to leave waterproof pillar when arranging the coalface.In Huainan mining area,generally speaking,we use 80 ～ 100m as the empirical value of waterproof pillar.So,the 1111(1) coalface arranged to the position 100m before the F29 fault.Based on scientific formula,we have calculated out that the waterproof pillar just needs 60m.This can provides a scientific basis for the safety of coal cutting,and can enhances the output of coal as well.And it provides a reference for leaving the waterproof pillar of other coalfaces later. |
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| Keywords: | Coalface water conduction fault waterproof pillar and guard band |
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