Rapid plugging construction method for high-water-pressure deep foundation pit dewatering well

The invention belongs to the technical field of dewatering well plugging construction, and particularly relates to a rapid plugging construction method for a high-water-pressure deep foundation pit dewatering well. The rapid plugging construction method comprises the following steps that A, a steel sleeve assembly is manufactured; B, a steel pipe is mounted, and cushion layer concrete is poured; C, foundation bottom plate concrete is poured, and a bottom plate reserved pit is reserved around the upper end of the steel pipe; and D, the steel pipe is plugged. According to the rapid plugging construction method, the problem of plugging of the foundation pit dewatering well under the geological conditions of high permeability and high water pressure can be solved. 本发明属于降水井封堵施工技术领域，尤其是涉及一种高水压深基坑降水井快速封堵施工方法；包括以下步骤：步骤A、制作钢套管组件；步骤B、安装钢管并浇筑垫层混凝土；步骤C、浇筑基础底板混凝土并且在钢管上端周围预留一个底板预留坑；步骤D、对钢管进行封堵；本发明可以解决高渗透性、高水压地质条件下基坑降水井封堵难题。