在编制土建施工图预算时,常用的计算方法是利用“三线一面”的数据计算工程量,即先计算外墙中心线长度 L_中、内墙长度 L_内、外墙外边线长度 L_外、底层建筑面积S_1,然后重复利用这些基数计算其他分项工程量。可见,这些基数计算得正确与否,直接关系到整个工程预算的准确性,如果基数计算发生错误,后面的工程量计算将 In the preparation of civil construction drawings budget, the commonly used calculation method is to use the “three lines and one side” of the data to calculate the amount of work, that is, to calculate the length of the outer wall center line L_, the length of the inner wall L_, the length of the outer line outside the wall L_ Outside, the base floor area S_1, and then use these bases to calculate the other sub-items. It can be seen that whether or not these base numbers are calculated correctly is directly related to the accuracy of the entire project budget. If the calculation of the base number is wrong, the calculation of the amount of work to be performed will be