水–热–力三场耦合分析平台的升级与验证

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Abstract The thermo-hydro-mechanical(THM) coupling study is one of advanced problems in geotechnical engineering field，which has a wide application in frozen earth roadbed，nuclear waste disposal，geothermal development，and so on. By in-depth analysis of 3G2001 analysis platform，the deficiency of the analysis platform is pointed out and some internal weaknesses of the computation module also are revised which include some bugs of subprogram，great gaps of the equivalent stiffness matrix?s principal component and some other internal weaknesses. Besides，coupling analysis platform has been upgraded from 3G2001 to 3G2012 whose reliability and precision has been fully verified by one-way frost heaving experiment by E. Penner and T. Ueda. It shows that the analysis results of 3G2012 agre well with experimental results and results of M. Shen and B. Ladanyi，which completely accords with frost heaving laws and project experience. Especially the frost deformations by the 3G2012 are closer to the experimental results than those of M. Shen and B. Ladanyi. The 3G2012?s accuracy could fully meet the engineering requirements and could be popularized and applied to the actual geotechnical problems.

Key words： subgrade engineering thermo-hydro-mechanical(THM) coupling analysis platform upgrade validation frost heave test

Received: 24 May 2013

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https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS1/2750

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