地震隧洞稳定性分析探讨
|
摘要
为得到地震作用下无衬砌隧洞的力学规律,将有限元强度折减法和具有拉和剪破坏分析功能的大型有限差分程序FLAC相结合,并将其引入到隧洞的稳定性分析中。在黄土无衬砌隧洞静力分析基础上,提出地震作用下动力有限元静态分析以及完全动力2种稳定性分析方法,在分析时同时考虑隧洞的拉破坏与剪破坏,从而得出黄土隧洞在动力情况下首先是隧洞顶部出现局部拉破坏然后是侧边整体破坏的破坏机制,同时也验证有限元强度折减法不仅能够用于隧洞静力分析而且能够用于隧洞动力稳定分析,从而为无衬砌黄土人居洞室的抗震设计提供理论依据,也可作为有衬砌黄土隧道的地震反应分析的基础。
In order to obtain the regularity of mechanics for an unlined tunnel during earthquake,strength reduction finite element method and a large finite-difference program FLAC with tensile and shear failure analyses are combined and introduced into the tunnel stability analysis.Based on static analysis of loess unlined tunnels,a seismic dynamic finite element static analysis and a complete dynamic stability analysis methods are proposed. The analysis takes into account the tunnel tensile and shear failure to get the failure mechanism of loess tunnel with outside drive.Partial tensile failure is taken place at the top and then the general demolition is took place at the broadside of the tunnel.And it is found that the strength reduction finite element method can be used not only to tunnel static analysis but also to tunnel dynamic stability analysis.This analysis can provide a theoretical basis for seismic design of unlined cavern loess habitat,and it can be used as a foundation for seismic response analysis of loess tunnel with lining.
In order to obtain the regularity of mechanics for an unlined tunnel during earthquake,strength reduction finite element method and a large finite-difference program FLAC with tensile and shear failure analyses are combined and introduced into the tunnel stability analysis.Based on static analysis of loess unlined tunnels,a seismic dynamic finite element static analysis and a complete dynamic stability analysis methods are proposed. The analysis takes into account the tunnel tensile and shear failure to get the failure mechanism of loess tunnel with outside drive.Partial tensile failure is taken place at the top and then the general demolition is took place at the broadside of the tunnel.And it is found that the strength reduction finite element method can be used not only to tunnel static analysis but also to tunnel dynamic stability analysis.This analysis can provide a theoretical basis for seismic design of unlined cavern loess habitat,and it can be used as a foundation for seismic response analysis of loess tunnel with lining.
引文
[1]张黎明,郑颖人,王在泉,等.有限元强度折减法在公路隧道中的应用探讨[J].岩土力学,2007,28(1):97-101.(ZHANG Liming,ZHENG Yingren,WANG Zaiquan,et al.Application of strength reduction finite limit method to road tunnels[J].Rock and Soil Mechanics,2007,28(1):97-101.(in Chinese))
[2]郑颖人,胡文清,王敬林.强度折减有限元法及其在隧道与地下洞室工程中的应用[C]//中国土木工程学会第十一届、隧道及地下工程分会第十三届年会论文集.[S.l.]:[s.n.],2004:239-243.(ZHENG Yingren,HU Wenqing,WANG Jinlin.Strength Reduction FEM and its applications to tunnel and underground engineering[C]//Symposium of the11th Annual Meeting of China Civil Engineering Society and the13th Annual Meeting of Tunnel and Underground Branch.[S.l.]:[s.n.],2004:239-243.(in Chinese))
[3]郑颖人,赵尚毅,邓楚键,等.有限元极限分析法发展及其在岩土工程中的应用[J].中国工程科学,2006,8(12):39-61.(ZHENG Yingren,ZHAO Shangyi,DENG Chujian,et al.Development of finite element limit analysis method and its applications to geotechnical engineering[J].Engineering Science,2006,8(12):39-61.(in Chinese))
[4]郑颖人,邱陈瑜,张红,等.关于土体隧洞围岩稳定性分析方法的探索[J].岩石力学与工程学报,2008,27(10):254-260.(ZHENG Yingren,QIU Chenyu,ZHANG Hong,et al.Exploration of stability analysis methods of surrounding rocks in soil tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(10):254-260.(in Chinese))
[5]郑颖人,邱陈瑜,宋雅坤,等.土质隧洞围岩稳定性分析与设计计算方法探讨[J].后勤工程学院学报,2009,25(10):1-9.(ZHENG Yingren,QIU Chenyu,SONG Yakun,et al.Exploration of stability analysis and design calculation methods of surrounding rocks in soil tunnel[J].Journal of Logistical Engineering University,2009,25(10):1-9.(in Chinese))
[6]郑颖人,邱陈瑜,宋雅坤.采用ANSYS软件讨论无衬砌黄土隧洞安全系数[J].地下空间与工程学报,2009,5(2):291-296.(ZHENG Yingren,QIU Chenyu,SONG Yakun.Exploring of safety factors of unlined loess tunnel by ANSYS[J].Chinese Journal of Underground Space and Engineering,2009,5(2):291-296.(in Chinese))
[7]ZHENG Y R,DEN C J,TANG X S,et al.Development of finite element limiting analysis method and its application in geotechnical engineering[J].Engineering Sciences,2007,3(5):10-36.
[8]郑颖人,赵尚毅,张鲁渝.用有限元强度折减法进行边坡稳定分析[J].中国工程科学,2002,4(10):57-62.(ZHENG Yingren,ZHAO Shangyi,ZHANG Luyu.Slope stability analysis by strength reduction FEM[J].Engineering Science,2002,4(10):57-62.(in Chinese))
[9]ZHENG Y R,TANG X S,ZHAO S Y,et al.Strength reduction and step-loading finite element approaches in geotechnical engineering[J].Journal of Rock Mechanics and Geotechnical Engineering,2009,1(1):21-30.
[10]Itasca Consulting Group,Inc..Fast Lagrangian analysis of continua in three dimensions(version3.0),user′s manual[R].[S.l.]:Itasca Consulting Group,Inc.,2003.
[11]赵尚毅,郑颖人,张玉芳.极限分析有限元法讲座——II有限元强度折减法中边坡失稳的判据探讨[J].岩土力学,2005,26(2):332-336.(ZHAO Shangyi,ZHENG Yingren,ZHANG Yufang.Study on slope failure criterion in strength reduction finite element method[J].Rock and Soil Mechanics,2005,26(2):332-336.(in Chinese))
[12]KIRZHNER F,ROSENHOUSE G.Numerical analysis of tunnel dynamic response to earth motions[J].Tunneling and Underground Space Technology,2000,15(3):249-258.
[13]郑颖人,陈祖煜,王恭先,等.边坡与滑坡工程治理[M].北京:人民交通出版社,2007.(ZHENG Yinren,CHEN Zuyu,WANG Gongxian,et al.Engineering treatment of slope and landslide[M].Beijing:China Communications Press,2007.(in Chinese))
[14]郑颖人,叶海林,黄润秋.地震边坡破坏机制及其破裂面的分析探讨[J].岩石力学与工程学报,2009,28(8):1714-1723.(ZHENG Yingren,YE Hailin,HUANG Runqiu.Discussion and analysis of failure mechanism and fracture surface of slope under earthquake effect[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(8):1714-1723.(in Chinese))
[15]高峰,任侠.黄土窖洞地震反应分析[J].兰州铁道学院学报(自然科学版),2001,20(3):12-18.(GAO Feng,REN Xia.Seismic responses analysis of a loess cave[J].Journal of Lanzhou Railway University(Natural Science),2001,20(3):12-18.(in Chinese))
[16]陈国兴,张克绪,谢君斐.黄土崖窖洞抗震性能分析[J].哈尔滨建筑工程学院学报,1995,28(1):15-22.(CHEN Guoxing,ZHANG Kexu,XIE Junfei.Aseismic performance analysis of the cave dwelling on the loess precipice[J].Journal of Harbin University of Civil Engineering and Architecture,1995,28(1):15-22.(in Chinese))
[2]郑颖人,胡文清,王敬林.强度折减有限元法及其在隧道与地下洞室工程中的应用[C]//中国土木工程学会第十一届、隧道及地下工程分会第十三届年会论文集.[S.l.]:[s.n.],2004:239-243.(ZHENG Yingren,HU Wenqing,WANG Jinlin.Strength Reduction FEM and its applications to tunnel and underground engineering[C]//Symposium of the11th Annual Meeting of China Civil Engineering Society and the13th Annual Meeting of Tunnel and Underground Branch.[S.l.]:[s.n.],2004:239-243.(in Chinese))
[3]郑颖人,赵尚毅,邓楚键,等.有限元极限分析法发展及其在岩土工程中的应用[J].中国工程科学,2006,8(12):39-61.(ZHENG Yingren,ZHAO Shangyi,DENG Chujian,et al.Development of finite element limit analysis method and its applications to geotechnical engineering[J].Engineering Science,2006,8(12):39-61.(in Chinese))
[4]郑颖人,邱陈瑜,张红,等.关于土体隧洞围岩稳定性分析方法的探索[J].岩石力学与工程学报,2008,27(10):254-260.(ZHENG Yingren,QIU Chenyu,ZHANG Hong,et al.Exploration of stability analysis methods of surrounding rocks in soil tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(10):254-260.(in Chinese))
[5]郑颖人,邱陈瑜,宋雅坤,等.土质隧洞围岩稳定性分析与设计计算方法探讨[J].后勤工程学院学报,2009,25(10):1-9.(ZHENG Yingren,QIU Chenyu,SONG Yakun,et al.Exploration of stability analysis and design calculation methods of surrounding rocks in soil tunnel[J].Journal of Logistical Engineering University,2009,25(10):1-9.(in Chinese))
[6]郑颖人,邱陈瑜,宋雅坤.采用ANSYS软件讨论无衬砌黄土隧洞安全系数[J].地下空间与工程学报,2009,5(2):291-296.(ZHENG Yingren,QIU Chenyu,SONG Yakun.Exploring of safety factors of unlined loess tunnel by ANSYS[J].Chinese Journal of Underground Space and Engineering,2009,5(2):291-296.(in Chinese))
[7]ZHENG Y R,DEN C J,TANG X S,et al.Development of finite element limiting analysis method and its application in geotechnical engineering[J].Engineering Sciences,2007,3(5):10-36.
[8]郑颖人,赵尚毅,张鲁渝.用有限元强度折减法进行边坡稳定分析[J].中国工程科学,2002,4(10):57-62.(ZHENG Yingren,ZHAO Shangyi,ZHANG Luyu.Slope stability analysis by strength reduction FEM[J].Engineering Science,2002,4(10):57-62.(in Chinese))
[9]ZHENG Y R,TANG X S,ZHAO S Y,et al.Strength reduction and step-loading finite element approaches in geotechnical engineering[J].Journal of Rock Mechanics and Geotechnical Engineering,2009,1(1):21-30.
[10]Itasca Consulting Group,Inc..Fast Lagrangian analysis of continua in three dimensions(version3.0),user′s manual[R].[S.l.]:Itasca Consulting Group,Inc.,2003.
[11]赵尚毅,郑颖人,张玉芳.极限分析有限元法讲座——II有限元强度折减法中边坡失稳的判据探讨[J].岩土力学,2005,26(2):332-336.(ZHAO Shangyi,ZHENG Yingren,ZHANG Yufang.Study on slope failure criterion in strength reduction finite element method[J].Rock and Soil Mechanics,2005,26(2):332-336.(in Chinese))
[12]KIRZHNER F,ROSENHOUSE G.Numerical analysis of tunnel dynamic response to earth motions[J].Tunneling and Underground Space Technology,2000,15(3):249-258.
[13]郑颖人,陈祖煜,王恭先,等.边坡与滑坡工程治理[M].北京:人民交通出版社,2007.(ZHENG Yinren,CHEN Zuyu,WANG Gongxian,et al.Engineering treatment of slope and landslide[M].Beijing:China Communications Press,2007.(in Chinese))
[14]郑颖人,叶海林,黄润秋.地震边坡破坏机制及其破裂面的分析探讨[J].岩石力学与工程学报,2009,28(8):1714-1723.(ZHENG Yingren,YE Hailin,HUANG Runqiu.Discussion and analysis of failure mechanism and fracture surface of slope under earthquake effect[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(8):1714-1723.(in Chinese))
[15]高峰,任侠.黄土窖洞地震反应分析[J].兰州铁道学院学报(自然科学版),2001,20(3):12-18.(GAO Feng,REN Xia.Seismic responses analysis of a loess cave[J].Journal of Lanzhou Railway University(Natural Science),2001,20(3):12-18.(in Chinese))
[16]陈国兴,张克绪,谢君斐.黄土崖窖洞抗震性能分析[J].哈尔滨建筑工程学院学报,1995,28(1):15-22.(CHEN Guoxing,ZHANG Kexu,XIE Junfei.Aseismic performance analysis of the cave dwelling on the loess precipice[J].Journal of Harbin University of Civil Engineering and Architecture,1995,28(1):15-22.(in Chinese))
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