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板桩的作用,一是增加防渗长度,二是防止地震时地基土液化丧生承载能力。传统的做法是采用宽度40cm。左右的钢筋混凝土板桩,一侧预埋木榫,一侧留凹槽。1996年在建设东台河新闸时,我们将“板桩”改成宽为10m左右、高4.5m的冲沉防渗板,接头采用二次灌注混凝土。该闸共30块冲沉板,总长度272.24m,混凝土用量241m~3。1 防渗板设计1.1 型式 防渗板采用平板式,参照以前的“板桩”厚度定为20cm,接头处为便于灌注混凝土,将板两端局
The role of sheet piles, one is to increase the seepage length, and second, to prevent the loss of liquefaction of the foundation soil when the earthquake carrying capacity. The traditional approach is to use a width of 40cm. Around the reinforced concrete sheet pile, one side embedded wood tenon, left side of the groove. When building Dongtai River New Gate in 1996, we changed the “sheet pile” into an infiltration impermeable plate with a width of about 10m and a height of 4.5m. The joints were filled with secondary concrete. The gate a total of 30 irrigated plate, the total length of 272.24m, the amount of concrete 241m ~ 3.1 Impermeable board design 1.1-type impermeable plate with flat-type, with reference to the previous “sheet pile” set at 20cm thickness, the joints for ease Pour concrete and place the board at both ends of the board