新州公路平面控制测量问题研究与施测

Actualization and Discussion on Xinzhou Highway Horizontal Control Network Survey Problem

简述建立公路控制网坐标系的方法,针对新州公路测量中投影长度变形较大的问题,提出了投影至中央子午线经度为114°30′的任意带平面直角坐标系的方法。然后采用重心公式计算出坐标平移旋转的4个参数,建立了坐标平移旋转的数学模型。介绍了本公路控制网的施工过程和最终精度情况。通过本工程得出了几点结论。

This paper recounts briefly to establish highway control network method, aiming to projection length deformation being bigger in Xinzhou highway survey, puts forward the method of horizontal coordinate system of option zone of central meridian being 114°30′. And then using mass center formula to calculate four parameters of translation axes and rotation coordinate, mathematic model is established. At last the paper introduces, in concision, the highway control network construction process and final precision situation. Some conclusions are gotten through this engineering.