基于自由测站的高速铁路CPⅢ高程控制网建网方法研究  

Study on the CPⅢ Vertical Control Network Establishing Method of High-speed Railway Based on Free-station

作　　者：付建斌 刘成龙[2] 卢建康[3] 何波[2] 杨雪峰[2] 

机构地区：[1]铁道部建设管理司,北京100844 [2]西南交通大学,成都610031 [3]中国中铁二院工程集团有限责任公司,成都610031

出　　处：《铁道工程学报》2010年第11期32-37,共6页Journal of Railway Engineering Society

基　　金：基于自由测站的高速铁路CPⅢ高程网建网测量及其标准的研究;铁建科字(2009)-16

摘　　要：研究目的:针对高速铁路轨道控制网CPⅢ高程网的建网测量,本文分析了CPⅢ高程网的技术要求及其德国建网方法和中国已有建网方法的技术特点,并根据CPⅢ平面网自由测站测量的原理,探讨利用CPⅢ平面网自由测站观测值构建CPⅢ三角高程网的可行性。研究结论:通过引进中间法三角高程测量技术构建CPⅢ三角高程网,并比对高精度三角高程网测量的前提条件,认为CPⅢ三角高程网是可行的;通过对其实际精度指标的大量比较和统计分析,认为可以达到二等水准测量和CPⅢ高程网的精度要求,因此是CPⅢ高程网建网测量的一种全新方法。Research purposes： Aiming at the measurement for establishment of high-speed railway track control network CPⅢ vertical control network,the paper not only analyzes the technical requirements of CPⅢ vertical control network but also the technical features of methods from Germany and China for establishment of vertical control network,and based on the principle of free-station in CPⅢ plane control network,the feasibility of building CPⅢ trigonometric leveling net work by the observational values of free-station in CPⅢ plane control network is discussed.Research conclusions：Through the introduction of the middle method of total station,CPⅢ trigonometric leveling network is established and compared to the prerequisite for high precision trigonometric leveling,it is considered to be feasible.At the same time,comparison and statistical analysis among actual accuracy index of large mounts of CPⅢ trigonometric leveling network data are done,proving that the method proposed in the paper can meet the accuracy requirements for the second order leveling and CPⅢ vertical control network,so it is a new method in establishing CPⅢ vertical control network.

关 键 词：自由测站 CPⅢ 高程网 高速铁路 建网测量 三角高程 

分 类 号：P228.4[天文地球—大地测量学与测量工程]