Abstract
By using the simulated software FLAC3D, triaxial creep simulation experiments are conducted on soft and hard interbedded rock bodies under different stress levels and loading paths, and the effects of stress state and loading method on the time-dependent characteristics of soft and hard interbedded rock bodies are studied. The established model is analyzed with the method of 3-D visco-elasto-plastic numerical simulation. The results have shown that under the same stress level the deformation and volumes of plastic zone of rock mass will expand when the amounts of soft rock layers increase or the gradient of soft rock layers is steeper.
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