高铁隧道洞内控制网测量新方法的应用  

Application to a New Method of Control Network Inside Tunnels in Hi-Speed Railways

作　　者：周凌焱 刘成龙[1] 高洪涛 聂虎啸 

机构地区：[1]西南交通大学地球科学与环境工程学院,四川成都611756 [2]沪昆铁路客运专线湖南有限责任公司,湖南长沙410008

出　　处：《测绘科学技术学报》2014年第6期570-575,共6页Journal of Geomatics Science and Technology

基　　金：中央高校基本科研业务专项资金项目(SWJTU12ZT07);"2011计划"轨道交通安全协同创新中心经费资助项目

摘　　要：高速铁路线路控制网(CPⅡ)是轨道控制网(CPⅢ)平面网的上一级控制网。因此CPⅡ控制网的精度直接影响CPⅢ平面网建网的精度。在介绍原有隧道洞内CPⅡ测量方法、分析其不足的基础上,研究了利用自由测站边角交会的测量方式构建隧道洞内CPⅡ和二等高程控制网的新方法。讨论了该方法的外业技术要求和内业精度要求,并介绍了新方法方位角闭合差与全长相对闭合差的计算方法。经仿真计算与实测数据计算验证,新方法具有可行性和技术优势,应该在长大隧道洞内控制测量中推广使用。The route horizontal control network（ CPⅡ） is on the track horizontal control network（ CPⅢ） in hispeed railways. So the accuracy of CPⅡ directly affects the accuracy of building CPⅢ horizontal control network.Based on introducing the traditional way of CPⅡ surveying method inside tunnel and analyzing its shortage, a new method was proposed by using free-station linear-angular intersection. The requirements of technique and accuracy in field and office work was discussed, and the way of calculating azimuth closure error and relative length closing error in this method were introduced. Verified by simulation and experimental data, this new method is feasible and has technical advantages, so that it should be promoted in the control survey of long tunnel.

关 键 词：高速铁路 自由测站 CPⅡ测量 CPⅡ三角高程网 仿真计算 

分 类 号：P258[天文地球—测绘科学与技术]