| 富水软岩大断面交岔点巷道失稳控制实践 |
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| 引用本文： | 夏宇君,吴俊松,耿东坤,张志亭.富水软岩大断面交岔点巷道失稳控制实践[J].煤炭科学技术,2011,39(7):31-34. |
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| 作者姓名： | 夏宇君 吴俊松 耿东坤 张志亭 |
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| 作者单位： | 1. 内蒙古上海庙矿业有限责任公司,内蒙古鄂尔多斯,016215
2. 内蒙古上海庙矿业有限责任公司榆树井煤矿,内蒙古鄂尔多斯,016215 |
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| 摘 要： | 为了实现富水软岩大断面交岔点巷道的稳定控制,分析了榆树井煤矿富水软岩大断面交岔点巷道掘进失稳的形成及原因,制定了更为经济有效的支护结构和合理的支护参数,采用了关键部位补强支护＋全断面锚注＋U29型钢支架拱部、肩部使用固棚锚索支护＋底板砌筑钢筋混凝土反底拱等复合型全封闭支护手段实现巷道稳定。实践结果表明：此类复合型支护手段可以有效控制富水软岩大断面交岔点巷道的稳定,通过观测,巷道在修复45 d以后已经呈现稳定趋势,巷道收敛变形速率为0.012 mm/d。
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| 关 键 词： | 富水软岩 大断面交岔点 失稳控制 支护 全断面锚注 |
Practices on Stability Lost Control of Mine Large Cross Section Crossing Roadway in Watery Soft Rock |
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| XIA Yu-jun,WU Jun-song,GENG Dong-kun,ZHANG Zhi-ting.Practices on Stability Lost Control of Mine Large Cross Section Crossing Roadway in Watery Soft Rock[J].Coal Science and Technology,2011,39(7):31-34. |
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| Authors: | XIA Yu-jun WU Jun-song GENG Dong-kun ZHANG Zhi-ting |
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| Affiliation: | XIA Yu-jun1,WU Jun-song1,GENG Dong-kun2,ZHANG Zhi-ting2(1.Inner Mongolia Shanghaimiao Mining Company Ltd.,Erdos 016215,China,2.Yushujing Mine,Inner Mongolia Shanghaimiao Mining Company Ltd.,China) |
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| Abstract: | In order to have the stable control of the mine large cross section crossing roadway in watery soft rock,the paper had a study on a formation and cause of the stability lost in the large cross section crossing roadway heading in watery soft rock of Yushujing Mine.More economic and efficient support structures and rational support parameters were set up.In order to keep the stability of the mine roadway,the complex full closed support means,including the key location reinforced support + full cross section b... |
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| Keywords: | watery soft rock large cross section crossing point stability lost support full cross sectional bolting and grouting |
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