Analysis of structural parameters for dipping at high angle and thick orebody with upward horizontal slicing and filling non-pillar continuous mining

Non-pillar continuous mining is high-efficient mining technology.It is a general tendency to carry out this mining technology in underground mine.Dipping at high angle and thickness ore-body with upward horizontal slicing and filling non-pillar continuous mining was briefly introduced as an example of continuous mining methode in a Pb-Zn mine.The elastoplastic three-dimensional finite element analysis technique was employed to simulate the practical excavation and backfilling mining activities.Stope stability status with different height of slice,the numbers of pre-slicing and the exposed areas was analyzed so as to provide the optimum stoping structural parameters for mine operation.