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在公路定线测量的量角工作中,要放出平曲线中点(1GK)的方向,以便中桩组测定曲线。以往,求 CK 方向系用经纬仪前视读数加上1/2右测角(右偏角时)或加上1/2(360°-右侧角)(左偏角时),算出游标读数,再放出 CK 方向桩。去年我在担任量角工作中,发现一个简捷的计算 CK方向读数法,现在介绍如下:
In the work of measuring the angle of road alignment, it is necessary to release the direction of the midpoint of the horizontal curve (1GK) so that the curve of the middle pile group can be measured. In the past, the CK direction was calculated by using the theodolite forward reading plus 1/2 right angle measurement (right deflection) or plus 1/2 (360 ° - right side angle) (left deflection angle) Then release CK direction pile. Last year I was working as a metrology, found a simple calculation CK direction reading method, now introduced as follows: