水中中大直径挖孔桩施工技术

Construction Techniques of Submarine Mediate and Broad Dimension Digging Stake

从施工概况、施工方案选定、注浆参数选定、注浆材料等方面,论述了水中大直径挖孔桩在大涌水情况下,采用水泥—水玻璃双液注浆固结砂卵石层止水的施工技术。采用双液注浆固结砂卵石层止水施工技术在静水中注浆的效果比较显著,采用双液注浆砂卵石层止水技术在涌水量较大的水中大直径挖孔桩比较显著。

In aspects of construction general conditions, construction scheme decision, pulp infusing, this paper expounds the way of stop gushing in the emergent situation, with concrete and water glasses.