Abstract
In this paper, based on an elasto-plastic model with strain hardening and strain softening(Oka and Adachi[5]), a finite element analysis of soil-water coupling problem is conducted to investigate the progressive failure of an imaginary cut. The mechanical behavior of a cut, such as the change of excess pore-water pressure, the redistribution of stress in ground due to strain softening, the propagation of shear band and the progressive failure are discussed in detail. It is found that a soil-water coupling analysis based on an elasto-plastic model with strain softening can simulate the progressive failure of a cut.
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