深井降水技术作为一种基础施工过程中降低水位的施工措施 ,确保了基础的正常施工和进度。从深井降水构造、井深和井位的确定、观察井及回灌井的布置、水泥浆喷桩止水帷幕的布置和深井降水的主要技术措施几方面进行了论述 ,说明了深井降水技术在工程中被广泛应用 Deep well dewatering technology as a basic construction process to reduce the water level construction measures to ensure that the foundation of the normal construction and progress. This paper discussed the deep-sea well structure, the determination of well depth and well location, the arrangement of observation well and recharge well, the curtain grouting of grouting pile and the main technical measures of deep well dewatering. Is widely used