Abstract: In view of coal seam mining under a karst aquifer, the roof of the coal seam weakens and seeps under the combined action of mine pressure and pore water, which accelerates the expansion of overburden fracture and eventually ...

Abstract: This study focuses on the issue of gas overflow encountered during the mining of coal seams at the Anshun coal mine. Initially, a mechanical model is constructed to analyze the displacement and vertical stress distribution ...

Abstract: When gob-side entry retaining technology is used in a fully mechanized caving face, the load-bearing structure of the filling body and top coal often cannot meet the series of dynamic deformation problems caused by the ...