人工挖孔灌注混凝土防渗墙的设计与施工

Design and Construction of the Manual Excavated Cast-in-place Concrete Diaphragm Wall

混凝土防渗墙是水利水电工程建设中普遍应用的一种地下连续墙,是透水体防渗处理的一种有效措施。三岔河水电站面板堆石坝左岸坝基防渗处理受岩体风化界限较深和机械施工场地狭小的限制,采用了人工挖孔灌注混凝土防渗墙方案进行防渗处理,达到了设计目的。

Concrete diaphragm wall is one kind of underground continuous wall which is widely used in the construction of water resources and hydropower projects .It is an effective way of seepage prevention in such projects .Considering the deep weathering rock mass and restriction of small construction site , manual bored cast-in-place concrete diaphragm wall is adopted in seepage prevention work in the left bank foundation of Sanchahe concrete face rockfill dam .Satisfied results are achieved in practice .