公路挖方段坡口线的放样方法

Setting Out Method of Groove Line of Excavation of Earth or Stone Section

通过实测并计算出坡口点所在地面线上的坡度,结合护坡设计坡度,推导出计算坡口点坐标公式。根据所计算的坡口点坐标实施放线,精度可靠。

First, through actual observation, the slope of ground lines is calculated, and then calculating coordinate formula of groove points is derived combined with design falling gradient of protecting slope, at last settingout is actualized. The precision of this method is reliable. 