[1]王迎超,尚岳全,孙红月,等.复合式衬砌在围岩蠕变过程中的受力规律研究[J].水文地质工程地质,2010,37(2):49-54.
 WANG Ying-chao,SHANG Yue-quan,SUN Hong-yue,et al.Study on mechanical rules of double-lining in creeping surrounding rock[J].Hydrogeology & Engineering Geology,2010,37(2):49-54.
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复合式衬砌在围岩蠕变过程中的受力规律研究()
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《水文地质工程地质》[ISSN:1000-3665/CN:11-2202/P]

卷:
37卷
期数:
2010年2期
页码:
49-54
栏目:
OA栏目
出版日期:
2010-03-15

文章信息/Info

Title:
Study on mechanical rules of double-lining in creeping surrounding rock
作者:
王迎超;尚岳全;孙红月;李焕强;徐兴华;
浙江大学建筑工程学院;浙江省交通规划设计研究院;
Author(s):
WANG Ying-chao1SHANG Yue-quan1SUN Hong-yue1LI Huan-qiang2XU Xing-hua1
1.College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China; 2. Zhejiang Provincial Plan Design & Research Institute of Communications,Hangzhou 310006,China
关键词:
隧道围岩复合式衬砌蠕变广义开尔文模型
Keywords:
tunnel surrounding rock double-lining creeping generalized kelvin model
分类号:
U451
文献标志码:
A
摘要:
为了分析隧道复合式衬砌在围岩蠕变过程中的受力规律,利用有限元程序ANSYS建立计算模型,采用广义开尔文本构关系,分别分析了二次衬砌在不同支护时机和不同刚度下,复合式衬砌的受力规律。分析结果表明:在不同的时机施加二衬,其受力都有一个逐步增大并趋于稳定的过程,初支与二衬受力随二衬支护时机的变化趋势是相反的;二衬支护越早,其受力越大。通过早施作二衬,来转移初支上的应力是不合适的。当二衬刚度增加时,其所分担的围岩压力将增大,而初支分担的围岩压力有一定的减小。结合云腾岭隧道进行具体分析,得出该隧道二次衬砌的最佳支护时间为开挖后第40天。另外,通过对该隧道现场监控量测分析发现,二衬的受力—历时曲线与有限元分析相吻合。
Abstract:
In order to analyze the mechanical rules of double-lining in creeping surrounding rock tunnel,a finite element model is established based on the finite element program ANSYS. Using generalized Kelvin constitutive relation,the mechanical rules of double-lining are analyzed when secondary lining is applied at different support time or different stiffness. The analysis results indicate that the stress of secondary lining increases gradually,and then tends to be stable when it is applied at differen...

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备注/Memo

备注/Memo:
基金:国家自然科学基金(40672185);;浙江省重大科技专项社会发展重点项目(2006C13027)资助
更新日期/Last Update: 2011-03-15