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回采巷道过断层顶板应力分布特征研究
引用本文:勾攀峰,晁建伟,孙光中.回采巷道过断层顶板应力分布特征研究[J].能源技术与管理,2007(4):1-3.
作者姓名:勾攀峰  晁建伟  孙光中
作者单位:河南理工大学,能源科学与工程学院,河南,焦作,454003
基金项目:河南省杰出青年科学基金
摘    要:通过相似材料模拟试验,建立平面应力模型,分析研究断层下盘巷道各点超前应力峰值点分布规律和断层上盘超前应力分布特征.试验结果表明:在断层上盘和断层下盘都存在一个最大超前应力峰值点;其顶板各点超前应力峰值点变化规律为:随着巷道向断层的掘进,巷道各点超前应力峰值点逐步增大,在靠近断层附近发生突变,达到最大值,在断层处再逐渐减小到最小值;随着巷道穿越断层,其超前应力峰值点又逐步增大到最大值,然后再逐步减小到正常开挖状态.

关 键 词:采矿工程  回采巷道  断层  应力分布  模拟试验
文章编号:1672-9943(2007)04-001-03
修稿时间:2007-05-14

Study on the Distribution Law of Roof Stress of Roadway cutting through Fault
GOU Pan-feng,CHAO Jian-wei,SUN Guang-zhong.Study on the Distribution Law of Roof Stress of Roadway cutting through Fault[J].Energy Technology and Management,2007(4):1-3.
Authors:GOU Pan-feng  CHAO Jian-wei  SUN Guang-zhong
Affiliation:School of Energy Science and engineering, Henan Polytechnic University, Jiaozuo 454003, China
Abstract:In this paper, the planer model is established using simulation experiment of similar material to analyze the distributing characteristic of the advance peak stress of the footwall and the distributing characteristic of the advance peak stress t of the hanging wall. The experimental phenomena indicate that there are the maximal stress destruction points in the hanging wall and the footwall.The distributing law of roof sress is made clear. At first the advance peak stress is biger and biger with roadway excavated.It becomes biggest in fault neighborhoodand least in fault face. In the hanging wall the stress become biggest with the roadway excavated.And then it will become less untill the natural condition.
Keywords:Mining Engineering  Retreating entry  Fauhs  stress distribution  Simulation experiment
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