水冲法沉井施工在国内百万机组工程中的应用

Application of open caisson construction with water-jetting method to 1000MW unit project in China

对国内首台百万机组——华能玉环电厂4×1 000 MW机组工程的雨水泵房沉井所处地质条件、结构型式、施工准备、施工顺序、施工方案和内容、对桩基和相邻建筑物的保护措施等方面,系统地进行了介绍.对施工的重点过程进行了分析论证,确定了施工方案.

In light of the geological conditions of the rainfall pump room of Huaneng Yuhuan Power Plant with 4×1 000 MW unit,the first domestic 1 000 MW unit,the structural style,construction preparation,construction procedure,construction scheme and content,and measures to protect piled foundations and neighboring buildings,are described symtematically.Also the key process of construction is analyzed;and the construction plan is determined.