大宝山隧道洞口段地震响应分析
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- 英文论文题名：Study on Seismic Dynamic Response for Portal of Dabaoshan Tunnel
- 论文作者：苑俊杰 ; 皇民 ; 高波
- 英文论文作者：YUAN Junjie ; HUANG Min ; GAO Bo ; School of Civil Engineering ; Henan Institute of Engineering ; School of Civil Engineering ; Southwest Jiaotong University
- 年：2016
- 作者机构：河南工程学院土木学院;西南交通大学土木学院;
- 论文关键词：大宝山隧道 ; 动力响应 ; 数值分析 ; 洞口段
- 英文论文关键词：Dabaoshan tunnel ; Dynamic response ; Numerical analysis ; Portal section
- 会议召开时间：2016-10-24
- 会议录名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会论文集
- 语种：中文
- 分类号：U452.28
- 学会代码：OGTY
- 会议名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会
- 会议地点：中国四川成都
- 主办单位：中国土木工程学会隧道及地下工程分会
- 学会名称：中国土木工程学会
- 页数：5
- 文件大小：1728k
- 原文格式：O
- 会议级别：全国
摘要
震害调查表明,隧道洞口段是隧道震害的多发地段,是隧道的抗震薄弱环节。由于洞口段围岩多风化破碎且自由面较多,围岩约束作用较弱,洞口段隧道衬砌的地震响应大于相应的洞身段衬砌,因此在隧道抗震设计中应引起足够的重视。大宝山隧道泸沽端洞口地形地质条件十分复杂,围岩比较破碎,属于双洞浅埋隧道,主要以雅泸高速公路大宝山隧道为原型建立数值计算模型,用有限差分软件FLAC3D对大宝山隧道洞口段的地震动力响应进行了专项研究。
The investigation of earthquake damage shows that the tunnel portal section is a lot of earthquake damage,and it is the weak link of the tunnel.Because the surrounding rock is more weathered and broken,and the joints are more,the surrounding rock is weak,the response is greater than the corresponding figure hole lining tunnel entrance of the earthquake,so enough attention should be in the tunnel in seismic design.The end of the Dabaoshan tunnel geological conditions are very complicated,the surrounding rock is broken,which belongs to the shallow double hole tunnel,this paper mainly in the Dabaoshan tunnel ya'lu expressway as the prototype of a numerical simulation model was established on the Baoshan tunnel entrance seismic dynamic response to the research using finite difference software FLAC3 D.
The investigation of earthquake damage shows that the tunnel portal section is a lot of earthquake damage,and it is the weak link of the tunnel.Because the surrounding rock is more weathered and broken,and the joints are more,the surrounding rock is weak,the response is greater than the corresponding figure hole lining tunnel entrance of the earthquake,so enough attention should be in the tunnel in seismic design.The end of the Dabaoshan tunnel geological conditions are very complicated,the surrounding rock is broken,which belongs to the shallow double hole tunnel,this paper mainly in the Dabaoshan tunnel ya'lu expressway as the prototype of a numerical simulation model was established on the Baoshan tunnel entrance seismic dynamic response to the research using finite difference software FLAC3 D.
引文
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[7]严松宏,梁波,高峰,高波.考虑地震非平稳性的隧道纵向抗震可靠度分析[J].岩石力学与工程学报,2005,24(5):818-822.YYAN Songhong,LIANG Bo,GAO Feng,GAO.Dynamic reliability analysis on resistance of tunnels to longitudinal non-stationary earthquake[J].Chinese Journal of rock mechanics and Engineering,2005,24(5):818-822.
[8]皇民.浅埋双洞隧道地震动力响应研究[D].西南交通大学,2009.HUANG Min.Study on seismic dynamic response of shallow buried double tunnel[D].Southwest Jiaotong University,2009.
[9]魏来.雅泸高速公路扯羊隧道地震动力响应研究[D].西南交通大学,2008.WEI Lai.Study on seismic dynamic response of Cheyang tunnel in Ya'lu Expressway[D].Southwest Jiaotong University,2008.
[2]WANG W L,et al.Assessment of damage in mountain tunnels due to the Taiwan Chi Chi Earthquake[J].Tunneling and Underground Space Technology.2001,(16):133-150.
[3]朱永全.109号隧道地震灾害与加固处理的思考[J].国防交通工程与技术.2008,(4):1-4.ZHU Yongquan.Our Reflection on the Earthquake Damage to the No.109 Tunnel and Our Consolidating Treatment[J].Traffic Engineering and Technology for National Defence,2008,(4):1-4.
[4]路仕洋.宝成铁路宝鸡—广元段隧道震害的调查与分析[J].国防交通工程与技术.2008,(6):59-61.LU Shiyang.Study and Analysis of the Earthquake-caused Damage to Tunnels of the Baoji-Guangyuan Section of the Baoji-Chengdu Railway[J].Traffic engineering and technology for national defense.2008,(6):59-61.
[5]李天斌.汶川特大地震中山岭隧道变形破坏特征及影响因素分析[J].工程地质学报,2008,16(6):742-750.LI Tianbin.Failure characteristics and influencing factor analysis of mountain tunnel at epicenter zones of great Wenchuan earthquake[J].Journal of engineering geology,2008,16(6):742-750.
[6]严松宏,梁波,高波.地下结构纵向抗震动力可靠度分析[J].岩石力学与工程学报,2005,24(1):71-76.YAN Songhong,LIANG Bo,GAO Bo.Dynamic analysis of longitudinal aseismic reliability of underground structures[J].Chinese Journal of rock mechanics and Engineering,2005,24(1):71-76.
[7]严松宏,梁波,高峰,高波.考虑地震非平稳性的隧道纵向抗震可靠度分析[J].岩石力学与工程学报,2005,24(5):818-822.YYAN Songhong,LIANG Bo,GAO Feng,GAO.Dynamic reliability analysis on resistance of tunnels to longitudinal non-stationary earthquake[J].Chinese Journal of rock mechanics and Engineering,2005,24(5):818-822.
[8]皇民.浅埋双洞隧道地震动力响应研究[D].西南交通大学,2009.HUANG Min.Study on seismic dynamic response of shallow buried double tunnel[D].Southwest Jiaotong University,2009.
[9]魏来.雅泸高速公路扯羊隧道地震动力响应研究[D].西南交通大学,2008.WEI Lai.Study on seismic dynamic response of Cheyang tunnel in Ya'lu Expressway[D].Southwest Jiaotong University,2008.