关键词: 村下压煤, 条带开采, 房柱式开采, 充填开采, 限厚开采, 条带宽度, 地表沉陷

Abstract: Research of village coal mining under pressure is to solve the problem that in Datong a large number coal resources under buildings, railways and water cannot be mined for a long time. A lot of high-quality coal resources are lost. In the paper, it is considered that strip mining is the most suitable method for coal pillar mining under Datong Coal Mine Group, through the comparison of various technical approaches of coal pillar mining in villages. Based on the analysis of 11# coal, thickness, dip angle, burial depth, etc. in Xinzhouyao Mine, the maximum subsidence and deformation value are calculated, and the most reasonable mining width and reserve width are selected. According to the analysis of the lithology in this area and the relationship of rock displacement parameters between strip mining and longwall fully mechanized mining, the final surface subsidence and deformation values are calculated, and the impact of the surface subsidence on the housing are expected. Through this study, we hope to provide theoretical basis for the coal mining under pressure in Datong Coal Mine group.