花岗岩隧道地震响应机理及减震技术探析
|
摘要
利用FLAC3D软件对花岗岩隧道的地震响应机理及泡沫混凝土减震层的减震效果进行了分析。通过对比塑性区范围、围岩应力场分布、应变增量以及衬砌结构内力等指标,得出一些有益的结论:泡沫混凝土减震层能有效降低围岩中的最大主应力,并改善岩体中的应力场分布,使最大主应力出现的部位远离隧道临空面;其次,减震层还大幅降低了衬砌结构的轴力。该结论可为花岗岩隧道抗震设计提供一定的参考。
The seismic responses of granite tunnel and the aseismic effectiveness of cellular concrete were studied using FLAC3D software.By analyzing the plastic zone,the stress field,the strain increment of surrounding rock and the inner force of liner,some useful solutions are concluded: the buffer layer of cellular concrete can effectively reduce the maximum principal stress of surrounding rock and the location of maximum principal stress may be moved to far away from the tunnel.The inner force of the liner is also reduced by a wide-range by setting the buffer layer.These results provide some references to seismic design of granite tunnel.
The seismic responses of granite tunnel and the aseismic effectiveness of cellular concrete were studied using FLAC3D software.By analyzing the plastic zone,the stress field,the strain increment of surrounding rock and the inner force of liner,some useful solutions are concluded: the buffer layer of cellular concrete can effectively reduce the maximum principal stress of surrounding rock and the location of maximum principal stress may be moved to far away from the tunnel.The inner force of the liner is also reduced by a wide-range by setting the buffer layer.These results provide some references to seismic design of granite tunnel.
引文
[1]郑永来,杨林德,李文艺,等.地下结构抗震[M].上海:同济大学出版社,2005.
[2]Wang W L,Wang T T,Su J J.Assessment of damage in mountain tunnels due to the Taiwan Chi-Chi Earthquake[M].Tunneling Underground Space Technology.2001:133-150.
[3]高波,王铮铮,袁松,等.汶川地震公路隧道震害启示[J].西南交通大学学报,2009,44(3):336-341.GAO Bo,WANG Zheng-zheng,YUAN Song,et al.Lessons learnt from damage of highway tunnels in wenchuan earthquake[J].Journal of Southwest Jiaotong University,2009,44(3):336-341.
[4]王秀英,刘维宁,张弥.地下结构震害类型及机理研究[J].中国安全科学学报,2003,13(11):55-58.WANG Xiu-ying,LIU Wei-ning,ZHANG Mi.Study on the categorization and mechanism of seismic damage[J].China Safty Science Journal,2003,13(11):55-58.
[5]St john C M,Zahrah T F.Aseismic design of underground structures[J].Tunneling Underground Space Technology,1987:165-197.
[6]Hashash Y M A,Hook J J,Schmidt B,et al.Seismic design and analysis of underground structures[J].Tunneling Underground Space Technology,2001:247-293.
[7]王志杰,高波,关宝树.围岩-隧道衬砌结构体系的减震研究[J].西南交通大学学报,1996,31(6):590-594.WANG Zhi-jie,GAO Bo,GUAN Bao-shu.Research of Isolation of rock-liner structure systems[J].Journal of Southwest Jiaotong University,1996,31(6):590-594.
[8]郑颖人,肖强,叶海林.地震隧洞稳定性分析探讨[J].岩石力学与工程学报,2010,29(6):1082-1088.ZHENG Ying-ren,XIAO Qiang,YE Hai-lin,et al.Study of tunnel stability analysis with seismic load[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(6):1082-1088.
[9]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 Ying-ren,YE Hai-lin,HUANG Run-qiu.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.
[10]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 Ying-ren,QIU Chen-yu,ZHANG Hong,et al.Explorationof stability analysis methods of surrounding rocks in soil tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(10):254-260.
[11]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 Ying-ren,QIU Chen-yu,SONG Ya-kun,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.
[12]中华人民共和国国家标准GB50086-2001.锚杆喷射混凝土支护技术规范[S].北京:中国计划出版社,2001.
[13]田志敏,钱七虎,吴步旭.大压力爆炸动载作用下地下复合圆形结构研究[J].特种结构,1997,14:40-43..TIAN Zhi-min,QIAN Qi-hu,WU Bu-xu.Study of underground circle shape structure under high pressure and blasting dynamin load[J].Special Structure,1997,14:40-43.
[14]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.
[15]黄胜,陈卫忠,杨建平,等.地下工程地震动力响应及抗震研究[J].岩石力学与工程学报,2009,28(3):483-490.HUANG Sheng,CHEN Wei-zhong,YANG Jian-ping,et al.Research on earthquake-induced dynamic responses and aseismic measures for underground engineering[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(3):483-490.
[2]Wang W L,Wang T T,Su J J.Assessment of damage in mountain tunnels due to the Taiwan Chi-Chi Earthquake[M].Tunneling Underground Space Technology.2001:133-150.
[3]高波,王铮铮,袁松,等.汶川地震公路隧道震害启示[J].西南交通大学学报,2009,44(3):336-341.GAO Bo,WANG Zheng-zheng,YUAN Song,et al.Lessons learnt from damage of highway tunnels in wenchuan earthquake[J].Journal of Southwest Jiaotong University,2009,44(3):336-341.
[4]王秀英,刘维宁,张弥.地下结构震害类型及机理研究[J].中国安全科学学报,2003,13(11):55-58.WANG Xiu-ying,LIU Wei-ning,ZHANG Mi.Study on the categorization and mechanism of seismic damage[J].China Safty Science Journal,2003,13(11):55-58.
[5]St john C M,Zahrah T F.Aseismic design of underground structures[J].Tunneling Underground Space Technology,1987:165-197.
[6]Hashash Y M A,Hook J J,Schmidt B,et al.Seismic design and analysis of underground structures[J].Tunneling Underground Space Technology,2001:247-293.
[7]王志杰,高波,关宝树.围岩-隧道衬砌结构体系的减震研究[J].西南交通大学学报,1996,31(6):590-594.WANG Zhi-jie,GAO Bo,GUAN Bao-shu.Research of Isolation of rock-liner structure systems[J].Journal of Southwest Jiaotong University,1996,31(6):590-594.
[8]郑颖人,肖强,叶海林.地震隧洞稳定性分析探讨[J].岩石力学与工程学报,2010,29(6):1082-1088.ZHENG Ying-ren,XIAO Qiang,YE Hai-lin,et al.Study of tunnel stability analysis with seismic load[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(6):1082-1088.
[9]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 Ying-ren,YE Hai-lin,HUANG Run-qiu.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.
[10]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 Ying-ren,QIU Chen-yu,ZHANG Hong,et al.Explorationof stability analysis methods of surrounding rocks in soil tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(10):254-260.
[11]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 Ying-ren,QIU Chen-yu,SONG Ya-kun,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.
[12]中华人民共和国国家标准GB50086-2001.锚杆喷射混凝土支护技术规范[S].北京:中国计划出版社,2001.
[13]田志敏,钱七虎,吴步旭.大压力爆炸动载作用下地下复合圆形结构研究[J].特种结构,1997,14:40-43..TIAN Zhi-min,QIAN Qi-hu,WU Bu-xu.Study of underground circle shape structure under high pressure and blasting dynamin load[J].Special Structure,1997,14:40-43.
[14]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.
[15]黄胜,陈卫忠,杨建平,等.地下工程地震动力响应及抗震研究[J].岩石力学与工程学报,2009,28(3):483-490.HUANG Sheng,CHEN Wei-zhong,YANG Jian-ping,et al.Research on earthquake-induced dynamic responses and aseismic measures for underground engineering[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(3):483-490.
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