Coal Safety Mining Technology Under Rivers in Wanbei Mining Area

Through the research and practice of the coal mining under rivers in Wanbei mine area,this paper proposed the calculation methods of riverbank subsidence prediction,embankment top elevation and stability against sliding.The technical measures of mining embankment body from a single coal seam,a single face to the multi-seam,multi-face,reinforcing embankment body,processing dam cracks,preventing wave in riverside slope were put forward.Meanwhile,the appropriate measures of reducing the surface deformation and reinforcing embankment of the coal mining under rivers were summed up,which provided reference for the future coal mining under rivers with similar conditions of this mining area.