Research and Practice of Backstopping Techniques Adopted in 9~# Low Coal Seam of Jinpushan Coal Mine

By using the method of combining the theory with the practice, this paper makes primary research and exploration on the backstopping techniques adop ted in 9#low coal seam of Jinpushan Coal Mine, including the coal breaking, coa l loading, coal transporting, mining field supporting, goaf treating, etc.