The characteristics of a disturbed soil-structure interface were studied based on the variation regularities of the disturbed soil within its mining subsidence area using direct shear tests.The effects of the initial ...The characteristics of a disturbed soil-structure interface were studied based on the variation regularities of the disturbed soil within its mining subsidence area using direct shear tests.The effects of the initial moisture content on the shear strength parameters of the soil-structure interfaces were analyzed.The results indicate that the cohesion of the interface initially increased and then decreased as the initial moisture content increased.In addition,the friction angle of the interface decreased as the initial moisture content increased.A constitutive model of the disturbed soil-structure interface,a rigid-plastic model based on the initial void ratio and saturability(VSRP) model,was established based on the results.In order to validate this model,a finite element analysis of DRS-1 direct shear tests was conducted.The finite element model calculations coincided with the results of the DRS-1 direct shear tests.The proposed model also reflected the nonlinear features of the soil-structure interface.展开更多
The fast-developing field of medical geology (geomedicine) which deals in part with the threat to health from natural silent poisons could help explaining the toxicology of elements released or used in the mining area...The fast-developing field of medical geology (geomedicine) which deals in part with the threat to health from natural silent poisons could help explaining the toxicology of elements released or used in the mining areas.Since the focus in natural hazards work is almost exclusively on the effects on human, the introduction of geomedicine,with its extended concerns for animals and plants,might help balance anthropocentric attitudes toward the environment and, thus,to stress continuities within the biosphere. Different health problems such as ataxia。展开更多
基金Project(51274192)supported by National Natural Science Foundation of China
文摘The characteristics of a disturbed soil-structure interface were studied based on the variation regularities of the disturbed soil within its mining subsidence area using direct shear tests.The effects of the initial moisture content on the shear strength parameters of the soil-structure interfaces were analyzed.The results indicate that the cohesion of the interface initially increased and then decreased as the initial moisture content increased.In addition,the friction angle of the interface decreased as the initial moisture content increased.A constitutive model of the disturbed soil-structure interface,a rigid-plastic model based on the initial void ratio and saturability(VSRP) model,was established based on the results.In order to validate this model,a finite element analysis of DRS-1 direct shear tests was conducted.The finite element model calculations coincided with the results of the DRS-1 direct shear tests.The proposed model also reflected the nonlinear features of the soil-structure interface.
文摘The fast-developing field of medical geology (geomedicine) which deals in part with the threat to health from natural silent poisons could help explaining the toxicology of elements released or used in the mining areas.Since the focus in natural hazards work is almost exclusively on the effects on human, the introduction of geomedicine,with its extended concerns for animals and plants,might help balance anthropocentric attitudes toward the environment and, thus,to stress continuities within the biosphere. Different health problems such as ataxia。
