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目前,公路勘测设计部门在高等级公路中线放样测量中,一般都采用传统的放样方法,即先确定放样点的桩号,进而计算出其坐标,然后计算控制点至放样点的方位角和距离,最后,在该控制点上按计算的方位角和距离放出该桩的实地位置。此方法存在着一定的局限性,因为每一个桩号都要有对应的方位角和距离,而在实际操作中经常遇到视线被挡或放样点位选择不理想等情况,给工作带来不便,为解决上述问题,本文提出以光电测距极坐标新方法,便能克服上述不足。
At present, the survey and design department of highway generally adopts the traditional method of stakeout in the middle-line setting-out survey of high-grade highways, that is, first determine the station number of the staked point and then calculate its coordinates, and then calculate the azimuth and distance from the control point to the staked point , Finally, the position of the pile is released at the control point according to the calculated azimuth and distance. This method has some limitations, because each station must have the corresponding azimuth and distance, and in practice often encounter line of sight is blocked or staking point selection is not ideal, etc., to bring inconvenience to work , In order to solve the above problems, this paper proposes to overcome the above shortcomings by the new method of photoelectric polar distance measurement.