混凝土的充盈系数怎么算?

2025-03-15 06:24:00
推荐回答(2个)
回答(1):

混凝土充盈系数好象尚未有定义。它用于沉管灌注桩的施工要求。沉管方式分锤击、静压、振动沉管和振动加圧沉管等几种工艺。桩的充盈系数我们浙江规定:当采用锤击或静压沉管时不得小于1.05,当采用振动沉管时不得小于1.15。意思比如采用振动沉管桩直径325mm,其截面乘长毎米桩混凝土计算量为0.083³,但实际灌注混凝土量为0.095³,比计算量多了0.0955³-0.083³=0.0125³,0.0955³÷0.083³=1.15,也就说加满一怀水,只要10L即可现要您加11.5L11.5L÷10L=1.15这就是混凝土充盈系数。因由地下土有软有硬必须考虑混凝土对土的水平挤压,否则桩身不能达到密要求。

回答(2):

混凝土充盈系数=实际浇灌砼量/理论量,
比如采用振动沉管桩直径325mm,其截面乘长毎米桩混凝土计算量为0.083³,但实际灌注混凝土量为0.095³,比计算量多了0.0955³-0.083³=0.0125³,0.0955³÷0.083³=1.15,也就说加满一怀水,只要10L即可现要您加11.5L11.5L÷10L=1.15这就是混凝土充盈系数

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