涵洞八字墙墙身计算方法参考
涵洞八字墙墙身计算方法参考某涵洞八字墙墙身设计如下(见下图:涵洞右侧洞口前方冀墙): INCLUDEPICTURE "http://hehuijie.blog.bokee.net/u
涵洞八字墙墙身计算方法参考