Application and Research of Gangue Partial-Filling Mining Method in Preventing Water Inrush from Floor

Coal gangue produced during coal production not only poses a serious threat to the ground environment but also imposes economic burdens on mine. The partial-filling mining (PFM) method proposed in this paper can make full use of and is great significance prevention control water disasters at working face. specific process used implement first divide face into several narrow faces then fill filling body part goaf. ability PFM restrain floor inrush analyzed by physical simulation, field application research carried out No. 9211 Bucun Mine Shandong, China. simulation results show that failure depth layer less than 5 m. measurements reveal maximum compression deformation 89.1 mm, 8.6 Comparative analysis indicates with local 4.6 m lower 9110 strip method. In addition, no accident occurs mining. Therefore, controls damage effectively consumes protect mine environment.