辐射井降水技术在停车楼工程中的应用

Application of Technology for Ground Water Level Lowering With Radial Well in Construction of Parking Building

首都国际机场停车楼基坑面积大，深度深，地质条件复杂，地下水位较高。采用大直径辐射井降水技术和高压喷射防渗帷幕墙技术相结合的方法，在周围建筑物不受影响的情况下，把地下水位一次性的降至设计标高。本文阐述辐射井和抗渗帷幕墙的工艺特点和施工要点。

The foundation pit for the parking building of the capital Airport has a large area, a profound depth, complex geological conditions and rather high ground water level. The constructors, adopting a method combining the technology of lowering ground water level by large diameter radial well with the technology of impervious diaphragm wall made of shotcrete, lower the ground water level to the design elevation for it at one stroke without affecting the surrounding buildings. This article describes the special features and main points of the technology.