According to the construction of a long bridge buttresses foundation,we adapted the way of light dewatering,introduced the system of light dewatering some important thing.

• 结合某特大桥桥墩承台施工时基坑开挖所采用的轻型井点降水方法,阐述了轻型井点降水系统的设计计算要点、所需设备材料、施工的一般步骤以及注意事项。