The article mainly introduces the new technique of platform fabrication above water and that of sinking installation under water,which have been successfully applied in the new catch pit in West Suburban Water Plant of Nanning,Guangxi.

• 文章主要介绍了广西南宁市西郊水厂新增集水井成功采用水上施工平台制作和下沉安装的新工艺。