[1]张运良,聂子云,李凤翔..衬砌背后脱空对隧道结构影响三维数值分析[J].郑州大学学报(工学版),2013,34(02):94-98.[doi:10.3969/j.issn.1671-6833.2013.02.024]
　ZHANG Yun-liang,NIE Zi-yun,LI Feng-xiang.Three-dimensional Numerical Analysis of the Effect of Voids onExisting Road Tunnel Linings[J].Journal of Zhengzhou University (Engineering Science),2013,34(02):94-98.[doi:10.3969/j.issn.1671-6833.2013.02.024]
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衬砌背后脱空对隧道结构影响三维数值分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34
期数:
2013年02期
页码:
94-98
栏目:
出版日期:
2013-03-28

文章信息/Info

Title:
Three-dimensional Numerical Analysis of the Effect of Voids onExisting Road Tunnel Linings
作者:
张运良1; 聂子云1; 李凤翔2.
中南大学土木工程学院,湖南长沙,410004, 中铁工程设计咨询集团有限公司,北京,100055
Author(s):
ZHANG Yun-liang1; NIE Zi-yun1; LI Feng-xiang2
1.School of Civil Engineering,Central South University , Changsha 410004, China;2.China Railway Engineering Design andConsultant Group，Beijing 100055，China
关键词:
公路隧道;  衬砌;  脱空;  平面分析;  三维;  数值分析
Keywords:
road tunnel; linings ; voids; plane analysis ;  three-dimensional;  numerical analysis
分类号:
U451.5
DOI:
10.3969/j.issn.1671-6833.2013.02.024
文献标志码:
A
摘要:
衬砌背后脱空是很普遍的公路隧道病害现象之一,对衬砌结构危害较大.以往通过平面分析认为脱空过大可能导致衬砌外侧沿环向出现较大拉应力,产生纵向裂缝；通过建立三维有限元模型对比发现,局部空洞会导致脱空衬砌外侧出现较大纵向拉应力,可能引起环向裂缝,而几乎不产生环向拉应力.根据三维数值分析得出不同空洞位置、不同围岩级别下空洞对衬砌结构影响.
Abstract:
Voids behind linings,which are a common form of road tunnel disease,have great danger to the sta-bility of tunnel linings. The previous researches concentrated on plane analysis, researchers considered that lar-ger voids would lead to loop tensile stress at the out edge of the lining which might cause longitudinal crack;However,through establishing three-dimensional finite element model compared with plane analysis,the articleputs forward that voids will leaded to longitudinal tensile stress but loop tensile stress at the out edge of the lin-ing,which possible cause annular cracking. And based on three-dimensional numerical analysis,obtaining theeffect of void behind linings under different surrounding rock and different void locations.
更新日期/Last Update: 1900-01-01