| 大柳塔煤矿12404工作面过沟的可行性分析 |
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| 引用本文： | 于云飞,李琰庆,马露.大柳塔煤矿12404工作面过沟的可行性分析[J].中国煤田地质,2007,19(6):36-38,60. |
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| 作者姓名： | 于云飞 李琰庆 马露 |
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| 作者单位： | [1]淮南矿业集团,安徽淮南232046 [2]西安科技大学地质与环境工程系,陕西西安710054 |
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| 摘 要： | 大柳塔煤矿12404工作面煤层埋深浅、上覆基岩薄、松散含水层厚，地表让有母河沟横过。通过对工作面不同采高条件下冒落带、裂隙带的计算及老顶破断岩块形成结构的力学分析，认为工作面涌水灾害不可避免，但岩块只发生切落溃沙；据此提出了采用疏排水与预提高支架的支护阻力来防止工作面涌水、溃沙灾害的发生．为类似条件下煤层的安全开采提供了理论指导。
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| 关 键 词： | 矿井地质灾害 涌水 溃沙 浅埋工作面 大柳塔煤矿 |
| 文章编号： | 1004-9177（2007）06-0036-03 |
| 收稿时间： | 2007-09-07 |
| 修稿时间： | 2007年9月7日 |
Feasibility Analysis of Daliuta Coalmine No.12404 Working Face Mining under a Runnel |
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| Yu Yunfei,Li Yanqing, Ma Lu.Feasibility Analysis of Daliuta Coalmine No.12404 Working Face Mining under a Runnel[J].Coal Geology of China,2007,19(6):36-38,60. |
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| Authors: | Yu Yunfei Li Yanqing Ma Lu |
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| Abstract: | The No.12404 working face of Daliuta coalmine has a shallow buried coal seam under thick loosened aquifer with only thin bedrock there under, and the Muhe runnel flowing across on the surface. Through estimation of working face caving and fractured zones under different mining heights and mechanism analysis of main roof cracked block forming structure considered that water in- rush is not avoidable, but only sand inrush caused by strata shearing off. Thus dredging and draining water measures have been put forward to prevent working face water and sand inrush through improvement of support supporting resistance and a theoretical guidance is provided for similar condition mining. |
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| Keywords: | mine geological hazard water inrush sand inrush shallow working face Daliuta coalmine |
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