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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

第9卷    第5期    总第49期    2012年10月

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文章编号:1672-7029( 2012) 05-0071-06
青山冲双连拱隧道软弱围岩变形与稳定性研究
唐峰1,袁昕2,袁航3

(1.中交四公局第二工程有限公司,北京101101;
2.湖南省永龙高速公路建设开发有限公司,湖南永顺416700;
3.湖南交通职业技术学院岩土工程材料研究所,湖南长沙410132
)

摘 要: 依托怀新高速青山冲双连拱隧道工程,通过地质勘察、现场监测、有限元分析等方法研究了双连拱隧道在穿越软弱围岩条件下的变形及应力变化特征。借助位移量测、应力应变量测等手段,对连拱隧道施工过程中的各种信息进行反分析,根据分析结果验证模拟、修正设计、指导施工。

 

关键字: 双连拱隧道; 软弱围岩; 有限元分析

Research on the deformation and stability of weak surrounding rock mass in the Qingshanchong double-arch tunnel
TANG Feng1,YUAN Xin2,YUAN Hang3

1.Second Engineering Co,Ltd.of CCCC Forth Highway Engineering Co.Ltd.,Beijing 101101,China;
2.Hunan Province of Yong-long Expressway Construction and Development Co.Ltd,Yongshun 416700,China;
3.Institute of Geotechnical Engineering Materials Hunan Communication Polytechnic,Changsha 410132,China

Abstract:Depending on the Qingshanchong double-arch tunnel in Huaixin expressway, the method of geological investigation, spot monitoring and the finite element analysis were used to explore the deformation and characteristic of the stresses variation where the double-arch tunnel construction process pass through the zone of weak surrounding rock mass.With the help of displacement measurement,stress and strain measurement and so on,a variety of information in the construction process of double-arch tunnel was back analyzed to validate the simulations,modify the design and instruct the construction according to the results of analysis.

 

Key words: double-arch tunnel ; weak surrounding rock mass; finite element analysis

ISSN 1672-7029
CN 43-1423/U

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