鹤岗新一煤矿几年来,在特厚煤层中采用分层开采全部陷落预防性灌浆方法防止采空区自然发火,取得良好效果.本文系作者根据该矿之经验写成.重点介绍了泥浆灌注方法;灌注中若干技术问题;泥浆在冒落区的分布状态.指出采用此法具有一定优越性. In recent years, Hegang Xinyi coal mine has adopted all-prevention preventive grouting method in stratified mining in special thick coal seam to prevent spontaneous combustion in goaf and achieved good results. The author of this paper has written according to the experience of this mine, and emphatically introduced mud perfusion method ; Several technical problems in perfusion; The distribution of mud in the area of ​​caving area. It is pointed out that this method has certain advantages.