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混凝土对模板水平压力值的计算,在我国规范中已有明确规定,以通常用的捣固方法,使用插入式振动器,确定侧压力最大值公式是P_(max) =γ·H或P_(max)=γ·R,用荷载图表示(如图1)。规范中的公式,它有个基本的假设,即混凝土浇注高度超过震捣器的震捣范围时,其侧压力则为固定值。通过实践检验及使用仪表监测,结果表明:这一计算公式有一定
The calculation of the horizontal pressure value of concrete on the template has been clearly stipulated in China’s standard. With the usual tamping method, the maximum value of the side pressure is determined using a plug-in vibrator P_ (max) = γ · H or P_ max) = γ · R, with the load diagram (Figure 1). The formula in the specification has a basic assumption that when the concrete pouring height exceeds the vibrating range of the vibrator, the lateral pressure is fixed. Through the practice of testing and monitoring instruments, the results show that: This formula has some