Papers by Keyword: Water Saturated

Abstract: In recent years, the extreme weather has caused a serious effect to the engineering, strong rainfall is the important reason result in debris flow frequent happens. For the problem of slope stability under the condition of strong rainfall, this paper adopted the strength reduction by FEM, combining case of slope, analyzed the causes the bedrock soften under the condition of normal and strong rainfall separately, band slope appears the phenomenon of saturated water softening under strong rainfall, an d its physical mechanical properties and strength greatly reduce. The conclusion can be obtained that the problem of slop safety and stability is caused by bedrock softening. Following bedrock strength decreases by step, then slop loses safety and stability.

Abstract: A damage constitutive model of dry/water-saturated granite is proposed within the framework of continuum mechanics and mixture theory, and the model allows for the simulation of the effects of micro-cracks, micro-pores and saturated water. By implementing the model into wave propagation code, one dimensional stain waves in dry granite induced by a rectangular impulsive loading and spherical waves in water-saturated granite due to underground explosion are studied. The simulation results demonstrate the main features of the model, and it is shown that the theoretical model developed is valid for study on the characteristics of stress waves in rock medium.