在公路路基施工当中,弯道部分的补桩放样技术性比较复杂,通常总要通过计算或查图表来解决问题。尤其遇有虚交点弯道、长曲线等,往往还需使用经纬仪,这不仅一般施工人员不易掌握,且限于当前条件,施工单位全面使用经纬仪,在数量上也是不可能的。由于这一情况,我们采用了这种简易圆盘,使用时既不必查图表,也无需计算,同时亦可简便的解决弯道上一般技术问题。现将圆盘的构造、使用方法 Among the roadbed construction, the staking out of the curved part of the curve is technically complicated, and usually the problem must be solved by calculation or look up chart. Especially in the case of inflexion point curves and long curves, it is often necessary to use theodolite. This is not only not easy for the general construction personnel to grasp, but also limited to the current conditions. It is also impossible for the construction units to make full use of theodolite. Because of this situation, we have adopted this simple disc, which uses neither the chart nor the calculation, but also the simple technical solution to the problem on the curve. Now disc structure, use method