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黄河下游堤防险点采用混凝土截渗墙等措施进行加固防渗。射水法施工 ,主要利用高压水射流冲切地层成槽 ,槽孔泥浆固壁 ,水下导管法灌注混凝土成墙。采用技术测定法 ,对现场实测资料进行统计、分析和计算 ,编制出混凝土截渗墙预算定额。针对Ⅰ类土质、成墙厚度 2 2cm、成墙深度 15～ 2 0m的墙体 ,给出了射水法预算定额 ,包括射水成槽定额人工工日、材料量、机械台班消耗量和水下混凝土浇筑人工工日、材料量、机械台班消耗量。此预算定额已通过黄委会内部审查。
In the lower reaches of the Yellow River, the embankment risk prevention points are reinforced with seepage prevention walls and other measures to prevent seepage. Water jet construction mainly uses high-pressure water jets to cut the stratum into troughs, and the trough slurry is fixed on the walls, and the concrete is poured into the wall by underwater conduit method. The use of technical measurement methods, statistics, analysis and calculation of the field measured data, the preparation of concrete cutoff wall budget quota. For the wall of Class I soil, wall thickness of 22cm, and wall depth of 15 to 20m, the projected water project budget quotas are given, including the cast water sinking quota man-days, the amount of materials, the consumption of mechanical pedestals, and the underwater Concrete casting artificial labor day, the amount of materials, mechanical taiwan consumption. This budget quota has passed the internal review of the Yellow River Committee.