在公路工程的测量中,关于横断面边桩放样工作,一般在直线上是用十字方向架施测,但在弯道上的加桩(B.c.H.C.E.C.除外)则无方向可对,现在提出利用外距求曲线上加桩横断面的方向,供大家参考。 (1)理论数据用d=θ/L=57.2958/R(以L=R·θ(л/180)代入而得)作得图2。 In the survey of highway engineering, the setting-out work of cross-section side piles is generally measured in a straight line on a cross-shaped frame, but the addition of piles (except for BcHCEC) on the corners has no direction and it is proposed to use the outer distance Add the direction of pile cross-section curve for your reference. (1) Theoretical data is shown in Fig. 2 with d = θ / L = 57.2958 / R (substituted with L = R · θ (л / 180)).