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木寨岭隧道地应力特征及对隧道变形影响的研究
收稿日期: 2012-09-27
修回日期: 2012-11-20
网络出版日期: 2013-03-05
基金资助
中铁隧道集团科研计划(隧研合2009-21)
Ground Stress Characteristics and Their Influence on Tunnel Deformation: Case Study on Muzhailing Tunnel
Received date: 2012-09-27
Revised date: 2012-11-20
Online published: 2013-03-05
张文新 , 张建国 , 唐绍武 , 刘志强 , 蒋永强 , 高攀 , 李沿宗 . 木寨岭隧道地应力特征及对隧道变形影响的研究[J]. 隧道建设, 2013 , 33(2) : 116 -121 . DOI: 10.3973/j.issn.1672-741X.2013.02.005
The ground stress values measured in the limited insitu ground stress tests are expanded by means of FE multiple element regression analysis and neural network.The characteristics of the ground stress field are analyzed. The conditions of carbonaceous slate of Muzhailing tunnel is analyzed by means of FLCD numerical calculation. Conclusions drawn are as follows: 1) The horizontal influencing range of the high ground stress on the deformation of tunnel constructed by 3bench excavation method is about 2 to 3 times of the tunnel diameter. 2) The middle bench, is the main stressreleasing phase and also the main deformationinducing phase.
Key words: Muzhailing tunnel; high ground stress; numerical simulation; deformation
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