单侧形式轨道控制网测量及其数据处理分析

Survey and Data Processing Analysis of Unilateral Track Control Network

随着我国大量高铁的建设和运营,以及已经投入运营的原有铁路,有必要开发和维护越来越多的轨道。当使用配备有专业且高精度测量设备的大型道路养护机械来保持线路状态时,有必要使用轨道控制网络(CPⅢ)作为定位参考。本文系统地研究了一种建立单面CPⅢ控制网络的新方法,并对单面CPⅢ控制网络测量数据的精度进行了统计分析和计算实验。可以认为,CPⅢ平面网和CPⅢ三角高程网的精度可以满足高铁的相关精度要求。最后,通过三维自由站测量实验和精确统计分析,验证了在V形天窗中建立CPⅢ控制网络的可行性。

With the construction and operation of a large number of high-speed railways in China,as well as the original railways that have been put into operation,it is necessary to develop and maintain more and more tracks.When large road maintenance machinery equipped with professional and high-precision measuring equipment is used to maintain the line status,it is necessary to use the track control network(CPⅢ)as the positioning reference.In this paper,a new method of establishing one-sided CPⅢcontrol network is systematically studied,and the accuracy of measurement data of one-sided CPⅢcontrol network is statistically analyzed and calculated.It can be considered that the accuracy of CPⅢplane network and CPⅢtriangular elevation network can meet the relevant accuracy requirements of high-speed railway.Finally,the feasibility of establishing CPⅢcontrol network in V-shaped skylight is verif ied by 3D free station measurement experiment and accurate statistical analysis.