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前“人民交通”公路版1956年第12期所载的“拱形桥涵拱圈上端垟体积的计算说明”一文,只谈到半圆形拱的一种,兹再将坦国拱桥涵拱圈上端洋体积的一般计算法补充如下:
“People’s Traffic” Road version of 1956, No. 12 contained in the “arched bridge culvert arch circle volume calculation of a note,” only talked about a semicircular arch, and then the arch of the arch bridge Arch The general calculation of the upper ocean volume is as follows: