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二、用加权平均法计算这种方法是经过计算,求出该方格网假定总土方量,再除以方格网总面积,从而求得方格网地面平均读数。然后,再根据这一平均数计算各桩点切深或填高及每个方格里挖、填土方量。计算方法、步骤如下。1.确定方格网各点的权数:设权数为 P_oP 由方格网各点与它临界的方格数确定。如图1,方格网各点的权:Ⅰ_1、Ⅰ_5、Ⅱ_5、Ⅲ_4、Ⅲ_1点,P 为1;Ⅰ_2、Ⅰ_3、Ⅰ_4、Ⅱ_1、Ⅲ_2、Ⅲ_3点,P 为2;Ⅱ_4点,P 为3;Ⅱ_2、Ⅱ_3点,P 为4。
Second, using the weighted average method to calculate this method is calculated, find the square grid assuming the total amount of earth, and then divided by the total area of the square grid, in order to obtain square ground average readings. Then, based on this average, the cut depth or fill height of each pile point and the amount of excavation and fill in each square are calculated. The calculation method and steps are as follows. 1. Determine the weights of grid points: Set the weight P_oP to be determined by the square grid points and its critical squares. As shown in Figure 1, the weights of each grid point: I_1, I_5, II_5, III_4, III_1 points, P is 1; I_2, I_3, I_4, II_1, III_2, III_3 points, P is 2; II_4 points, P is 3 ; II_2, II_3 points, P is 4.