钢围堰在低桩承台基坑开挖中的实践

Use of Steel Cofferdam in the Excavation of Foundation Pit for Low Piled Platform

介绍一种水中低桩承台的施工方法,针对在粘土质河床中开挖基坑渗水条件差的地质情况,因地制宜采用一种浅埋式扩大钢围堰隔水支护,承台基坑用人工开挖的施工方法,顺利完成了承台施工,取得了较好的经济效益。

Aimed at the unfavorable drainage condition in the clayey subgrade in the river. Shallow-embedded steel cofferdam with water proof bracing is adopted. Man-dig method is used for the construction of the foundation pit excavation. The work goes smoothly and better economical benifit was obtained.