海南大广坝水电工程输水隧洞支护结构设计及稳定性分析

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Abstract Based on the geological conditions，an optimizing design scheme for the support structure of Daguangba irrigation tunnel in Hainan province was made by reference to the experiences of similar underground engineering. Meanwhile，the stability analysis for the support structure was made using an elastic-plast FEM，and the displacement，stress and plastic region distributions around the tunnel are derived. Afterwards，the rationality of the scheme was verified by means of in-situ monitoring. The results of this study are of reference value for the construction of similar underground engineering.

Key words： irrigation tunnel support structure design stability analysis in-situ monitoring

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https://rockmech.whrsm.ac.cn/EN/Y2002/V21/IS/1962