破碎断层变形破坏过程的试验研究
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摘要
范各庄矿F0断层是一条走向贯穿整个井田的破碎断层,极大地影响了该矿采区布置及矿井深部开拓,对矿井的安全生产具有重大威胁。为了研究F0断层在采动影响下的变形破坏过程,采用电镜、薄片及蠕变力学试验方法分别对断层物质的原样和3种含水量、5组样品的复制样进行了分析研究。试验表明:围压效应、结构效应、含水量效应均对断层物质的性质产生巨大影响;断层物质具有明显的流动变形特征;结构面的存在、承压水的作用以及围压的改变极大地影响着断层物质的性质。试验研究结果对于分析断裂滞后突水具有重要意义。
The F0 fault of Fangezhuang coal mine threads the whole mine field,which threatens the safe production of the coal mine.In order to research the failure process of this fault under the mining influence,we adopted electron microscope,the thin section analysis and the creep test on the fault matter's original sample and 5 group duplication samples with 3 kinds water content.The tests indicate that the confining pressure,structure effect and water content effect all have great influence on the capability of the fault material.The fault material has evident flow deformation characteristic.The existence of discontinuities,the effect of confined water and the change of confining pressure all influence the capability of fault material.The study has great practical significances for the analysis of logging water inrush.
The F0 fault of Fangezhuang coal mine threads the whole mine field,which threatens the safe production of the coal mine.In order to research the failure process of this fault under the mining influence,we adopted electron microscope,the thin section analysis and the creep test on the fault matter's original sample and 5 group duplication samples with 3 kinds water content.The tests indicate that the confining pressure,structure effect and water content effect all have great influence on the capability of the fault material.The fault material has evident flow deformation characteristic.The existence of discontinuities,the effect of confined water and the change of confining pressure all influence the capability of fault material.The study has great practical significances for the analysis of logging water inrush.
引文
[1]武红岭.张性结构面的力学性质与主应力关系解析[J].地质论评,1999,45(5):449-455.WU Hong-ling.Analysis on mechanical properties of a tensile structure plane and its relationship to principal stresses[J].Geological Review,1999,45(5):449-455.
[2]赵永红,黄杰藩,侯建军,等.岩石细观破裂的实验观测研究及其对认识地震活动性的启示[J].地球物理学报,1995,38(5):627-636.ZHAO Yong-hong,HUANG Jie-pan,HOUJian-jun,et al.An experimental observation on rock′s micro failure and its impli-cation non understanding seismic activity[J].Acta Geophysica Sinica,1995,38(5):627-636.
[3]谭志祥.断层突水的力学机制浅析[J].矿业安全与环保,1999,(3):5-8.TAN Zhi-xiang.The mechanism of mechanics of water-inrush by fault[J].Mining Safety and Environmental Protection,1999,(3):5-8.
[4]武红岭,张利容.断层周围的弹塑性区及其地质意义[J].地球学报,2002,23(1):11-16.WU Hong-ling,ZHANG Li-rong.The elastic-plastic region around faults and it′s geological significance[J].Acta Geo-sci-entia Sinica,2002,23(1):11-16.
[5]王学滨,李毅.平面应变含缺陷岩样变形破坏全过程数值模拟[J].中国矿业大学学报,2005,34(2):198-203.WANG Xue-bin,LI Yi.Numerical simulation of complete failure process of rock with material imperfection in plane com-pression strain[J].Journal of China University of Mining and Technology,2005,34(2):198-203.
[6]周瑞光,成彬芳,高玉生,等.断层泥蠕变特性与含水量关系研究[J].工程地质学报,1998,6(3):217-222.ZHOURui-guang,CHEN Bin-fang,GAO Yu-sheng,et al.Relationship between creep behavior of fault group and its water contents[J].Journal of Engineering Geology,1998,6(3):217-222.
[7]周瑞光,成彬芳,叶贵均,等.断层破碎带突水的时效特性研究[J].工程地质学报,2000,8(4):411-415.ZHOU Rui-guang,CHENG Bin-fang,YE Gui-jun,et al.Time effect of water bursting in fault rupture zone[J].Journal of Engineering Geology,2000,8(4):411-415.
[8]李青麒.软岩蠕变参数的曲线拟合计算方法[J].岩石力学与工程学报,1998,17(5):559-564.LI Qing-qi.Curve fitting method for creep parameter of soft rock[J].Chinese Journal of Rock Mechanics and Engineering,1998,17(5):559-564.
[2]赵永红,黄杰藩,侯建军,等.岩石细观破裂的实验观测研究及其对认识地震活动性的启示[J].地球物理学报,1995,38(5):627-636.ZHAO Yong-hong,HUANG Jie-pan,HOUJian-jun,et al.An experimental observation on rock′s micro failure and its impli-cation non understanding seismic activity[J].Acta Geophysica Sinica,1995,38(5):627-636.
[3]谭志祥.断层突水的力学机制浅析[J].矿业安全与环保,1999,(3):5-8.TAN Zhi-xiang.The mechanism of mechanics of water-inrush by fault[J].Mining Safety and Environmental Protection,1999,(3):5-8.
[4]武红岭,张利容.断层周围的弹塑性区及其地质意义[J].地球学报,2002,23(1):11-16.WU Hong-ling,ZHANG Li-rong.The elastic-plastic region around faults and it′s geological significance[J].Acta Geo-sci-entia Sinica,2002,23(1):11-16.
[5]王学滨,李毅.平面应变含缺陷岩样变形破坏全过程数值模拟[J].中国矿业大学学报,2005,34(2):198-203.WANG Xue-bin,LI Yi.Numerical simulation of complete failure process of rock with material imperfection in plane com-pression strain[J].Journal of China University of Mining and Technology,2005,34(2):198-203.
[6]周瑞光,成彬芳,高玉生,等.断层泥蠕变特性与含水量关系研究[J].工程地质学报,1998,6(3):217-222.ZHOURui-guang,CHEN Bin-fang,GAO Yu-sheng,et al.Relationship between creep behavior of fault group and its water contents[J].Journal of Engineering Geology,1998,6(3):217-222.
[7]周瑞光,成彬芳,叶贵均,等.断层破碎带突水的时效特性研究[J].工程地质学报,2000,8(4):411-415.ZHOU Rui-guang,CHENG Bin-fang,YE Gui-jun,et al.Time effect of water bursting in fault rupture zone[J].Journal of Engineering Geology,2000,8(4):411-415.
[8]李青麒.软岩蠕变参数的曲线拟合计算方法[J].岩石力学与工程学报,1998,17(5):559-564.LI Qing-qi.Curve fitting method for creep parameter of soft rock[J].Chinese Journal of Rock Mechanics and Engineering,1998,17(5):559-564.
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