Structural characteristics and stress distribution of overlying strata in inclined stope under multi-factor coupling conditions
In order to analyze the overlying strata structure characteristics of inclined stope under multi-factor coupling conditions,No.3308 Face of Yangcheng Mine was taken as the research background,the overlying strata structure characteristics of inclined stope were studied from three aspects:the fracture law of overlying strata,the distribution characteristics of overlying strata stress field and the evolution law of plastic zone by using the comprehensive research methods of field investigation and numerical simulation.The caving of overlying strata caused by inclined mining along the working face made the overall shape of the stope appear elliptical distribution,while the caving of overlying strata caused by mining along the working face made the overall shape of the stope appeared trapezoidal distribution,and the plastic zone appeared elliptical shape as a whole.Moreover,due to the layout of the working face along the fault and the accumulation of gangue,the roof of the stope presented a more complicated stress environment.Combined with the previous analysis and the actual situation on site,the roof control suggestions were proposed.
inclined stopeoverlying rock structurenumerical simulationfault
万方数据
维普
