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施工技术

京沈客专望京隧道洞内平面控制测量方法实践及应用分析

  • 何博 ,
  • 翟志国 ,
  • 花楠
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  • (中铁隧道集团二处有限公司, 河北 三河 065201)
何博(1990—),男,陕西渭南人,2019年毕业于北京建筑大学,土木工程专业,本科,助理工程师,现从事隧道及地下工程施工技术管理工作。Email: 605857940@qq.com。

网络出版日期: 2023-03-26

Innovation and Application of Control Survey Method in Wangjing Tunnel of BeijingShenyang PassengerDedicated Line

  • HE Bo ,
  • ZHAI Zhiguo ,
  • HUA Nan
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  • (The 2nd Engineering Company of China Railway Tunnel Group, Sanhe 065201, Hebei, China)

Online published: 2023-03-26

摘要

为解决京沈客专8 km长望京隧道掘进贯通测控精度低的问题,通过对不同的洞内平面控制测量方法对比分析,并在盾构隧道右线和左线分别采用导线测量+陀螺定向测量、导线测量+陀螺定向测量+投点孔测量等不同测量方法的组合创新与实践应用,解决了望京隧道多台盾构对向接收实际贯通中误差偏大的问题。由此认为: 对于盾构独头掘进长度超过3 km的长大隧道,在盾构掘进过程中采用导线测量+陀螺定向测量的方法进行导向,并且在盾构接收前300~500 m采用投点孔测量的方法进行贯通测量,可以显著提高长大盾构隧道的横向贯通精度。

本文引用格式

何博 , 翟志国 , 花楠 . 京沈客专望京隧道洞内平面控制测量方法实践及应用分析[J]. 隧道建设, 2022 , 42(S2) : 466 -471 . DOI: 10.3973/j.issn.2096-4498.2022.S2.058

Abstract

To improve the penetration accuracy of 8 kmlong Wangjing tunnel on BeijingShenyang passengerdedicated line, various intunnel plane control survey methods are comparatively analyzed, and combination surveying methods of traverse survey + gyrostatic orientation survey and traverse survey + gyrostatic orientation survey + vertical projection hole survey are applied in the right and left lines of a shield tunnel, respectively, resulting in a small penetration error. It can be concluded that for the long and large deadend shield tunneling with a length of more than 3 km, the method of traverse survey + gyrostatic orientation survey for guiding and vertical projection hole survey 300~500 m before shield receiving can significantly improve the penetration accuracy.
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