Analysis on coupling of temperature field and stress field for tunnel surrounding rock in cold region

作者:Zhang Huimei*; Liang Yuan; Chen Chuangao; Cao Haibo
来源:2012 Global Conference on Civil, Structural and Environmental Engineering, GCCSEE 2012 and the 3rd International Symposium on Multi-field Coupling Theory of Rock and Soil Media and Its Applications, MCTRSM 2012, 2012-10-20 to 2012-10-21.
DOI:10.4028/www.scientific.net/AMR.594-597.2578

摘要

Based on the theory of mass and energy transfer, the coupling theoretical model of temperature and stress fields in the process of rock freeze-thaw was established considering the volume load caused by temperature change within the rock body. Taking Daban mountain tunnel surrounding rock at its exit as example, the heat--stress coupling process was numerically calculated, and the mutual influence and varied laws of temperature and stress fields were researched. The simulating result is similar to the current results and engineering experience, which can verify the correctness of the theoretical model and the reliability of calculation method, and also provide some theoretical basis for determining the engineering parameters scientifically, optimizing the lining and supporting scheme and ensuring the safety of design and construction.

  • 出版日期2012

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