动压巷道围岩渗流场的空间分布特征
|
摘要
采用原位窥视仪观测实验与理论分析,根据围岩不同的渗流特性,沿巷道径向将巷道围岩空间划分成完全渗流区、定向渗流区、渗流屏蔽区、原岩渗流区;沿巷道轴向岩体渗透性呈现负指数规律逐渐增加达到极值,随后趋向减少;沿巷道环向渗透性能受层状沉积的缘故,不同部位渗透性差异很大,层内的渗流,往往在层理面发生隔断.
Seepage space features of surrounding rock were brought forth by the way of theory analysis and detecting instrument of borehole experiment on site.Based on penetrability of rockmass,the space of surrounding rock along radial direction were divided into complete seepage section,directional seepage section,shielding seepage section and untouched seepage section.Along axial direction penetrability of rockmass increased by negative exponent law and reach peak value gradually,then decreased subsequently.Along circle direction penetrability of rockmass was remarkably different,seepage flow was blocked on stratification bedding.
Seepage space features of surrounding rock were brought forth by the way of theory analysis and detecting instrument of borehole experiment on site.Based on penetrability of rockmass,the space of surrounding rock along radial direction were divided into complete seepage section,directional seepage section,shielding seepage section and untouched seepage section.Along axial direction penetrability of rockmass increased by negative exponent law and reach peak value gradually,then decreased subsequently.Along circle direction penetrability of rockmass was remarkably different,seepage flow was blocked on stratification bedding.
引文
[1]尹尚先,王尚旭.不同尺度下岩层渗透性与地应力的关系及机理[J].中国科学D辑:地球科学,2006,36(5):472-480.Yin Shangxian,Wang Shangxu.Relation and mechanism of permeability and ground stress of rock beds under different meas-urement[J].Science in China(Series D:Earth Sciences),2006,36(5):472-480.
[2]邓广哲.煤层裂隙应力场控制渗流特性的模拟实验研究[J].煤炭学报,2000,25(6):593-597.Deng Guangzhe.Study on seepage features of coal-bed cracks under controlling stress[J].Journal of China Coal Society,2000,25(6):593-597.
[3]周创兵,熊文林.地应力对裂隙岩体渗透特性的影响[J].地震学报,1997,19(2):154-163.Zhou Chuangbing,Xiong Wenlin.Influence of stress on permeability of cracked rocks[J].Acta Seismologica Sinica,1997,19(2):154-163.
[4]张新红,秦积舜.低渗岩心物性参数与应力关系的试验研究[J].石油大学学报,2001,25(4):56-60.Zhang Xinhong,Qin Jishun.Relation of ground stress with the properties of lowpermeable core[J].Journal of the Universityof Petroleum,2001,25(4):56-60.
[5]仵彦卿.裂隙岩体应力与渗流关系研究[J].水文地质工程地质,1995(6):30-35.Wu Yanqing.Study on relationship between stress and seepage of cracked rocks[J].Hydrogeology and Engineering Geology,1995(6):30-35.
[6]李小琴,李文平,李洪亮.砂岩峰后卸除围压过程的渗透性试验研究[J].工程地质学报,2005,13(4):481-484.Li Xiaoqin,Li Wenping,Li Hongliang.Experimental study on permeability of sand stone during post-peak unloading of theconfining pressure[J].Journal of Engineering Geology,2005,13(4):481-484.
[7]缪协兴,刘卫群,陈占清.采动岩体渗流理论[M].北京:科学出版社,2004.Miao Xiexing,Liu Weiqun,Chen Zhanqing.Seepage theory of mining rock[M].Beijing:Science Press,2004.
[8]彭苏萍,孟召平,王虎马,等.不同围压下砂岩孔渗规律试验研究[J].岩石力学与工程学报,2003,22(5):742-746.Peng Suping,Meng Zhaoping,Wang Huma,et al.Testing study on pore ratio and permeability of sandstone under differentconfining pressures[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(5):742-746.
[9]杨天鸿,赵兴东,冷雪峰,等.地下开挖引起围岩破坏及其渗透性演化过程仿真[J].岩石力学与工程学报,2003,22(S1):2 386-2 389.Yang Tianhong,Zhao Xingdong,Leng Xuefeng,et al.Numerical simulation on failure process of over burden rock strata andpermeability evolution caused by mining excavation[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(S1):2 386-2 389.
[10]杨伯源,张义同.工程弹塑性力学[M].北京:机械工业出版社,2003.Yang Boyuan,Zhang Yitong.Plasto elasticity of engineering[M].Beijing:China Machine Press,2003.
[11]钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003.Qian Minggao,Shi Pingwu.Ground control and rock pressure[M].Xuzhou:China University of Mining and TechnologyPress,2003.
[12]赵建生.断裂力学及断裂物理[M].武汉:华中科技大学出版社,2003.Zhao Jiansheng.Fracture mechanics and fracture physics[M].Wuhan:Huazhong University of Science and TechnologyPress,2003.
[13]郑纲.岩体裂隙三轴应力渗透规律的试验研究[J].工程地质学报,2007,35(1):42-46.Zheng Gang.Experimental study on the permeability regularities of rock cracks under triaxial compression[J].Journal ofEngineering Geology,2007,35(1):42-46.
[14]杨永杰,宋扬,陈绍杰.煤岩全应力应变过程渗透性特征试验研究[J].岩土力学,2007,28(2):381-385.Yang Yongjie,Song Yang,Chen Shaojie.Test study on permeability properties of coal specimen in complete stress-strainprocess[J].Rock and Soil Mechanics,2007,28(2):381-385.
[15]彭苏萍,孟召平,王虎,等.不同围压下砂岩孔渗规律试验研[J].岩石力学与工程学报,2003,22(5):742-746.Peng Suping,Meng Zhaoping,Wang Hu,et al.Testing study on pore ratio and permeability of sandstone under different con-fining pressures[J].Journal of Engineering Geology,2003,22(5):742-746.
[16]张农.软岩巷道滞后注浆围岩控制研究[D].徐州:中国矿业大学,1999.Zhang Nong.Study of surrounding rock control by lagging grouting in soft-rock roadway[D].Xuzhou:China University ofMining and Technology,1999.
[2]邓广哲.煤层裂隙应力场控制渗流特性的模拟实验研究[J].煤炭学报,2000,25(6):593-597.Deng Guangzhe.Study on seepage features of coal-bed cracks under controlling stress[J].Journal of China Coal Society,2000,25(6):593-597.
[3]周创兵,熊文林.地应力对裂隙岩体渗透特性的影响[J].地震学报,1997,19(2):154-163.Zhou Chuangbing,Xiong Wenlin.Influence of stress on permeability of cracked rocks[J].Acta Seismologica Sinica,1997,19(2):154-163.
[4]张新红,秦积舜.低渗岩心物性参数与应力关系的试验研究[J].石油大学学报,2001,25(4):56-60.Zhang Xinhong,Qin Jishun.Relation of ground stress with the properties of lowpermeable core[J].Journal of the Universityof Petroleum,2001,25(4):56-60.
[5]仵彦卿.裂隙岩体应力与渗流关系研究[J].水文地质工程地质,1995(6):30-35.Wu Yanqing.Study on relationship between stress and seepage of cracked rocks[J].Hydrogeology and Engineering Geology,1995(6):30-35.
[6]李小琴,李文平,李洪亮.砂岩峰后卸除围压过程的渗透性试验研究[J].工程地质学报,2005,13(4):481-484.Li Xiaoqin,Li Wenping,Li Hongliang.Experimental study on permeability of sand stone during post-peak unloading of theconfining pressure[J].Journal of Engineering Geology,2005,13(4):481-484.
[7]缪协兴,刘卫群,陈占清.采动岩体渗流理论[M].北京:科学出版社,2004.Miao Xiexing,Liu Weiqun,Chen Zhanqing.Seepage theory of mining rock[M].Beijing:Science Press,2004.
[8]彭苏萍,孟召平,王虎马,等.不同围压下砂岩孔渗规律试验研究[J].岩石力学与工程学报,2003,22(5):742-746.Peng Suping,Meng Zhaoping,Wang Huma,et al.Testing study on pore ratio and permeability of sandstone under differentconfining pressures[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(5):742-746.
[9]杨天鸿,赵兴东,冷雪峰,等.地下开挖引起围岩破坏及其渗透性演化过程仿真[J].岩石力学与工程学报,2003,22(S1):2 386-2 389.Yang Tianhong,Zhao Xingdong,Leng Xuefeng,et al.Numerical simulation on failure process of over burden rock strata andpermeability evolution caused by mining excavation[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(S1):2 386-2 389.
[10]杨伯源,张义同.工程弹塑性力学[M].北京:机械工业出版社,2003.Yang Boyuan,Zhang Yitong.Plasto elasticity of engineering[M].Beijing:China Machine Press,2003.
[11]钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003.Qian Minggao,Shi Pingwu.Ground control and rock pressure[M].Xuzhou:China University of Mining and TechnologyPress,2003.
[12]赵建生.断裂力学及断裂物理[M].武汉:华中科技大学出版社,2003.Zhao Jiansheng.Fracture mechanics and fracture physics[M].Wuhan:Huazhong University of Science and TechnologyPress,2003.
[13]郑纲.岩体裂隙三轴应力渗透规律的试验研究[J].工程地质学报,2007,35(1):42-46.Zheng Gang.Experimental study on the permeability regularities of rock cracks under triaxial compression[J].Journal ofEngineering Geology,2007,35(1):42-46.
[14]杨永杰,宋扬,陈绍杰.煤岩全应力应变过程渗透性特征试验研究[J].岩土力学,2007,28(2):381-385.Yang Yongjie,Song Yang,Chen Shaojie.Test study on permeability properties of coal specimen in complete stress-strainprocess[J].Rock and Soil Mechanics,2007,28(2):381-385.
[15]彭苏萍,孟召平,王虎,等.不同围压下砂岩孔渗规律试验研[J].岩石力学与工程学报,2003,22(5):742-746.Peng Suping,Meng Zhaoping,Wang Hu,et al.Testing study on pore ratio and permeability of sandstone under different con-fining pressures[J].Journal of Engineering Geology,2003,22(5):742-746.
[16]张农.软岩巷道滞后注浆围岩控制研究[D].徐州:中国矿业大学,1999.Zhang Nong.Study of surrounding rock control by lagging grouting in soft-rock roadway[D].Xuzhou:China University ofMining and Technology,1999.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心