基于有限元应力载荷宏观刚性滑裂面极限平衡抗滑稳定计算理论

doi:10.13722/j.cnki.jrme.2017.1369

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Abstract A mechanical model of macro-rigid sliding planes with the finite element stress load without the previous assumptions was put forward to resolve the problems in the calculation of anti-slide stability of deep and complex sliding planes of gravity dams. The principle of extreme projection direction of vector forces was proposed. The objective and quantitative method of stability calculation that combines the micro finite element stress with the macro limit equilibrium was established. The limit equilibrium equation and the energy extreme condition equation of macro-rigid sliding planes of the gravity dam against deep sliding under the elasto-plastic finite element stress load were given in the extreme projection direction. The objective safety factor accurately obtained not only satisfies the equilibrium condition but also has the extreme value of energy. The calculated results of examples are reasonable and reliable.

Key words： slope engineering dam foundation and slope anti-sliding stability dissipation force extreme energy finite element limit equilibrium safety factor

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	SUN Jiansheng

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SUN Jiansheng. Theoretical model of stability calculation of macro-rigid sliding planes with FEM stress load based on limit equilibrium[J]. , 2018, 37(4): 862-875.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2017.1369 OR http://www.rockmech.org/EN/Y2018/V37/I4/862

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