工程预算中,经常要计算砖基础的体积,这首先要计算砖基础的横截面面积。砖基础大放脚的截面形式一般分为不等高式和等高式两种,见图1、2。不等高式为每砌二皮砖收进1/4砖长(即63 mm)与一皮砖收进1/4砖长间隔进行。等高式为每砌二皮砖收进1/4砖长。现介绍一种计算大放脚截面面积的方 Project budget, often calculate the volume of brick foundation, which first calculate the cross-sectional area of ​​the brick foundation. Brick foundation big foot section is generally divided into non-isosceles and contour two, see Figure 1,2. The non-isosceles formulates a quarter brick length (ie 63 mm) for each brick, and a 1/4 brick length for a piece of brick. Contour style for each puzzle brick received 1/4 brick length. Here is a calculation of the foot area of ​​the cross-section of the square