[1]姜汶泉,张运良,安永林..不同地形偏压与隧道受力变形的关系[J].郑州大学学报(工学版),2008,29(01):136-139.
 JIANG Wenquan,ZHANG Yunliang,EY Lin.Relationship between different terrain bias and tunnel force deformation[J].Journal of Zhengzhou University (Engineering Science),2008,29(01):136-139.
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不同地形偏压与隧道受力变形的关系()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
29
期数:
2008年01期
页码:
136-139
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Relationship between different terrain bias and tunnel force deformation
作者:
姜汶泉张运良安永林.
浙江黄衢南高速公路有限公司,浙江,衢州,324403, 中南大学,土木建筑学院,湖南,长沙,410075
Author(s):
JIANG Wenquan; ZHANG Yunliang; EY Lin
关键词:
偏压 地面倾角 受力特性 变形特性
Keywords:
文献标志码:
A
摘要:
为了研究由地表倾斜引起的偏压对隧道受力、变形特性的影响,依托三卿口隧道工程实例,针对洞口浅埋偏压地段,基于平面应变问题,数值模拟了地表倾角为0°、5°、……、45°共计10种工况.结果表明:地表倾角小于35°时,隧道的拱顶沉降、周边收敛、衬砌弯矩、衬砌轴力变化较小,而当地表倾角大于35°时,各数值急剧增加;偏压情况下隧道的敏感部位为左墙脚、左边墙、左拱脚、右拱脚,而且在倾角大于35°时,左拱脚弯矩出现反号(内侧受压,变为内侧受拉).建议在隧道设计、施工中,当地表倾角小于35°时(相当于地面坡度1∶ 1.4),可以不考虑地形偏压对隧道的影响,反之,则要考虑.
Abstract:
In order to study the influence of bias caused by surface inclination on the stress and deformation characteristics of the tunnel, relying on the Sanqingkou tunnel engineering example, based on the plane strain problem, a total of 0 working conditions with surface inclination angles of 5°, 45°、......、10° were numerically simulated. The results show that when the surface inclination angle is less than 35°, the changes of the tunnel vault settlement, perimeter convergence, lining bending moment and lining axial force are small, while when the surface inclination angle is greater than 35°, the values increase sharply. Under the case of bias, the sensitive parts of the tunnel are the left wall foot, left wall, left arch foot, right arch foot, and when the inclination angle is greater than 35°, the bending moment of the left arch foot appears inverted (the inner side is compressed, becoming the inner side is pulled).

相似文献/References:

[1]安永林,彭立敏,赵丹,等.基于不同地表倾角的连拱隧道施工优化分析[J].郑州大学学报(工学版),2007,28(02):39.[doi:10.3969/j.issn.1671-6833.2007.02.010]
 EY Lin,PENG Limin,ZHAO Dan,et al.Optimization analysis of continuous arch tunnel construction based on different surface inclination angles[J].Journal of Zhengzhou University (Engineering Science),2007,28(01):39.[doi:10.3969/j.issn.1671-6833.2007.02.010]

更新日期/Last Update: 1900-01-01