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SV波斜入射对岩体隧道洞身段地震响应影响研究

杜修力, 黄景琦, 赵密, 金浏

杜修力, 黄景琦, 赵密, 金浏. SV波斜入射对岩体隧道洞身段地震响应影响研究[J]. 岩土工程学报, 2014, 36(8): 1400-1406. DOI: 10.11779/CJGE201408004
引用本文: 杜修力, 黄景琦, 赵密, 金浏. SV波斜入射对岩体隧道洞身段地震响应影响研究[J]. 岩土工程学报, 2014, 36(8): 1400-1406. DOI: 10.11779/CJGE201408004
shu
DU Xiu-li, HUANG Jing-qi, ZHAO Mi, JIN Liu. Effect of oblique incidence of SV waves on seismic response of portal sections of rock tunnels[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(8): 1400-1406. DOI: 10.11779/CJGE201408004
Citation: DU Xiu-li, HUANG Jing-qi, ZHAO Mi, JIN Liu. Effect of oblique incidence of SV waves on seismic response of portal sections of rock tunnels[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(8): 1400-1406. DOI: 10.11779/CJGE201408004
shu

SV波斜入射对岩体隧道洞身段地震响应影响研究  English Version

  • 北京工业大学城市与工程安全减灾教育部重点实验室,北京 100124

基金项目: 国家重点基础研究发展计划（973计划项目）（2011CB013600）; 国家自然科学基金项目（51008170）; 北京市科技新星计划项目（2011017）
详细信息
    作者简介:

    杜修力(1963- ),男,教授,博士生导师,主要从事地震工程学等方面的教学和科研。E-mail: duxiuli@bjut.edu.cn。

  • 中图分类号: TU45

Effect of oblique incidence of SV waves on seismic response of portal sections of rock tunnels

  • The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, China

摘要

    摘要
  • 摘要: 基于显式有限元方法并结合黏弹性人工边界条件,推导了SV波斜入射时人工边界面上等效节点力的计算公式,并基于通用有限元软件实现了SV波的倾斜输入。采用简单算例验证了SV波斜入射输入方法的准确性。分别考虑了SV波在隧道横断面和纵断面内斜入射工况,研究了SV波斜入射条件下岩体隧道洞身段地震响应规律。计算结果表明：SV波斜入射时的隧道地震响应规律与垂直入射时具有较大的差异;SV波在不同断面内斜入射时隧道的地震响应结果也具有较大差别。
    Abstract: By coupling the explicit finite element method with the viscous-spring artificial boundary condition, the formulae for calculating the equivalent nodal force under the oblique incidence of plane seismic SV waves are deduced. Then, the input of SV waves is realized in the FEM program. A half-space example with simple motion proves that the proposed approach has satisfactory precision. Subsequently, the proposed method is employed to investigate the rock tunnels with two oblique incidence conditions of cross section and vertical section. The numerical results indicate that under the action of obliquely incident seismic waves, the dynamic responses of rock tunnel are clearly different from those under the action of vertically incident seismic waves. In addition, the dynamic responses of the rock tunnels vary greatly with the incidence of SV waves in cross section and vertical section.
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    • 参考文献(19)
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出版历程
  • 收稿日期:  2013-10-24
  • 发布日期:  2014-08-18

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