| 基于实测结果的立井井壁破裂及治理时间分析 |
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| 引用本文： | 朱锋盼,周国庆,赵光思,梁恒昌,荆留杰,胡坤.基于实测结果的立井井壁破裂及治理时间分析[J].煤炭科学技术,2008,36(10). |
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| 作者姓名： | 朱锋盼 周国庆 赵光思 梁恒昌 荆留杰 胡坤 |
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| 作者单位： | 中国矿业大学深部岩土力学与地下工程国家重点实验室; |
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| 摘 要： | 为了确定注浆法治理井壁破裂的时间,以某矿副井历年来的井壁受力监测数据为依据,分析了井壁破裂治理前后竖向附加应变的变化规律.结果表明,靠近破坏区上方井壁的应变增量可以作为判别是否需要进行井壁破裂治理的依据;井壁破坏后稳定期内的应变值可以作为井壁二次破坏的预警值;应把井壁发生破坏后的稳定期作为首轮注浆治理时间;首轮注浆结束后,井壁应变积累至破坏后稳定期的应变水平的时间作为第二轮注浆治理时间.分析可知,合理地确定注浆治理时间,可以更大程度地缓释井壁的附加应变,延长井筒的服务年限.
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| 关 键 词： | 井壁破裂 注浆治理时间 应变 |
Analysis on mine shaft liner broking and control time based on site measurement results |
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| ZHU Feng-pan ZHOU Guo-qing ZHAO Guang-si LIANG Heng-chang JING Liu-jie HU Kun.Analysis on mine shaft liner broking and control time based on site measurement results[J].Coal Science and Technology,2008,36(10). |
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| Authors: | ZHU Feng-pan ZHOU Guo-qing ZHAO Guang-si LIANG Heng-chang JING Liu-jie HU Kun |
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| Affiliation: | ZHU Feng-pan ZHOU Guo-qing ZHAO Guang-si LIANG Heng-chang JING Liu-jie HU Kun(State Key Lab of Deep Rock , Soil Mechanics , Underground Project,China University of Mining , Technology,Xuzhou 221008,China) |
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| Abstract: | In order to set the time to treat mine shaft liner broking with grouting method,base on the mine shaft liner stressed monitoring and measured data of an mine auxiliary shaft in a mine as the basis,the paper analyzed the variation law of the vertical additional strain before and after the treatment of the mine shaft liner broken.The results showed that the strain increased value of the mine shaft liner near and above the mine shaft liner broken could be the basis of the liner broken treatment or not.After th... |
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| Keywords: | mine shaft liner broken grouting treatment time strain |
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