陈四楼煤矿中央风井深 41 6m ,采用钻井法凿井。钻井结束 ,井壁下沉到预定深度并经测量扶正后 ,井深 35 1～ 41 6m段采用井内下充填管进行壁后充填固井 ,取得很好效果。介绍了壁后充填的方法 ,分析了存在的问题 ,提出了改进建议 Chen Shalou coal mine central shaft depth 41 6m, the use of drilling drilling shaft method. After the drilling is completed, the shaft wall is subsided to a predetermined depth and the measured depth has been measured. After 35-1 ~ 41 6m of the well depth, a filling pipe under the well is used for filling and cementing the wall, achieving good results. The method of filling behind the wall is introduced, the existing problems are analyzed, and some suggestions for improvement are put forward