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隧道建设(中英文) ›› 2014, Vol. 34 ›› Issue (12): 1191-1195.DOI: 10.3973/j.issn.1672-741X.2014.12.012

• 施工技术 • 上一篇    下一篇

长大隧道轨道网CPII水平角测量系统误差分析及对策

杜志刚   

  1. (中铁隧道集团有限公司, 河南 洛阳 471009)
  • 收稿日期:2014-07-02 修回日期:2014-08-20 出版日期:2014-12-20 发布日期:2014-12-17
  • 作者简介:杜志刚(1980—),男,河南伊川人,2005年毕业于解放军信息工程大学测绘学院,测绘工程专业,本科,工程师,现从事长大隧道控制测量、轨道网CPII和CPIII建网测量等工作。

Analysis on System Error of Horizontal Angle Survey of CPII Track  Control Network of Long Tunnels and Countermeasures

DU Zhigang   

  1. (China Railway Tunnel Group Co., Ltd., Luoyang 471009, Henan, China)
  • Received:2014-07-02 Revised:2014-08-20 Online:2014-12-20 Published:2014-12-17

摘要:

在隧道内进行轨道网CPII作业时,由于受到场地狭小、观测视线距离隧道衬砌近和气流定向运动等因素影响,水平角易受到折光影响而产生系统误差。引用长沙至昆明客运专线黎子坪隧道轨道控制网CPII测量的实例,通过仪器自动观测、自动记录原始数据,分析长大隧道轨道控制网CPII水平角测量系统误差的产生原因和分布规律,探索减弱系统误差的措施,并提出“正反W型”观测方式的解决方案。

关键词: 长大隧道, 黎子坪隧道, 轨道控制网CPII, 水平角测量, 系统误差, &ldquo, 正反W型&rdquo, 观测方式, 水平折光, 旁折光

Abstract:

Due to the refraction caused by the limited space, small distance between the observation points and the tunnel lining and directional air flow, system errors often occur to horizontal angle survey of CPII control network of long tunnels. In the paper, the actual application of CPII track control network in Liziping tunnel on ChangshaKunming passengerdedicated railway is represented. The causes for and distribution rules of the system error of horizontal angle survey of CPII control network of long tunnels are analyzed on basis of automatic observation and automatic data recording, and countermeasures, such as positive and negative Wtype observation, are proposed.

Key words: long tunnel, Liziping tunnel, CPII control network, horizontal angle survey, system error, positive and negative Wtype observations, horizontal refraction, lateral refraction

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