The Feasibility Research on Ascending Mining under the Condition of Multi-Disturbances

This study focus on the feasibility of ascending mining under the condition of multi-disturbances for the Zhengyi coal mine. Firstly, the empirical methods are used to calculate and analyze the feasibility, and in order to make up for the deficiency of these empirical methods not considering the influence of overlying strata lithology and structure of upper coal seam on ascending mining then numerical simulation method is used to calculate and verify the feasibility. It is found that the empirical methods are appropriate for the Zhengyi coal mine and the ascending mining can be carried out under the condition of multi-disturbances for the Zhengyi coal mine based on the comprehensive analysis of empirical and numerical methods.