噪声与振动控制

›› 2009, Vol. 29 ›› Issue (5): 38-42.DOI: 10.3969/j.issn.1006-1355.2009.05.01

• 论文 • 上一篇    下一篇

《不同隧道断面结构处的地表振动分析》

刘金，陈长征，赵慧   

  1. （沈阳工业大学 机械工程学院，沈阳，110178）
  • 收稿日期:2008-12-26 修回日期:1900-01-01 出版日期:2009-10-18 发布日期:2009-10-18
  • 通讯作者: 刘金

《Analyses of Dynamic Responses of Subway Tunnels with Different Sections under Vibration Loading》

LIU Jin, CHEN Chang-zheng, ZHAO Hui   

  1. (Shenyang University of Techonology, Shenyang 110178, China)
  • Received:2008-12-26 Revised:1900-01-01 Online:2009-10-18 Published:2009-10-18
  • Contact: LIU Jin

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摘要：

地铁列车的振动对隧道周围土体强度和变形有较大的影响。本文以北京地铁5号线的隧道尺寸和土质特性为研究背景，用有限元软件对圆形隧道和矩形隧道在相同列车振动荷载作用下的动力响应进行计算，给出了隧道周围土体的变形情况和地表位移。并将这两种断面的有限元计算结果进行比较和分析，为以后的工程设计提供依据。

关键词: 振动与波, 有限元计算模型, 矩形隧道, 圆形隧道, 土体变形

Abstract:

Strength and deformation of soil around the subway tunnel is greatly affected by the vibration induced by the subway trains. In this paper, taking Beijing subway line 5 as an example, the dynamic responses of subway tunnels with rectangular and circular sections under train’s vibration loading are computed by means of the finite element code. The deformation of soil around the subway tunnels and the displacements of the ground surface are also given. The computation results for the two sections are analyzed and compared mutually. These results may provide some reference data for subway tunnel design。

Key words: vibration and wave, model of FEM, rectangular tunnel, circular tunnel, soil deformation

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