文章基本信息

标题：Finite Element Analysis on Mechanical Behaviour of Yungui Railway Tunnel in Shallow and Unsymmetrical Strata
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作者：Yang Shang-Yang ; Li Shu-Cai ; Xue Yi-Guo 等
期刊名称：International Journal of Hybrid Information Technology
印刷版ISSN：1738-9968
出版年度：2016
卷号：9
期号：10
页码：21-30
出版社：SERSC
摘要：Triaxial compression tests had been performed to determine the properties of the surrounding rock. The displacement and stress of surrounding rock had been analyzed according to Silin 2 at Yungui railway under three kinds of conditions: the initial state, excavation without supporting , and supporting after excavation. Plane strain FEM was established to analyze the stability of the surrounding rock. Contrasted the monitor measuring data, the results showed that the most unfavorable position in the tunnel was found at the ridge side of the arch, and the implementation of support afforded to ensure the stability of surrounding rock, and the design of the early support approach had the ability to meet the safety requirements. The results had certain significance for understanding the mechanical behavior of shallow tunnel in unsymmetrical strata.
关键词：tunnel; mechani;cal behaviour; numerical simulation; deformation; ;stability