摘要
针对我国首条过海地铁盾构隧道的高精度贯通问题,本文在分析陀螺全站仪定向测量原理的基础上,详细介绍了Y/JTQ-1陀螺全站仪的定向工作流程、数据处理过程,进行了定向精度分析,讨论了减弱措施及其在城市轨道交通工程盾构隧道中的实际应用。工程应用实例表明,采用Y/JTQ-1下架式陀螺全站仪辅助定向,不仅能够满足隧道掘进过程中的定向精度要求,有效指导现场施工,而且降低了隧道掘进贯通的风险,提高了隧道的贯通精度,为其他同等规模类型的隧道掘进贯通提供宝贵的控制测量经验。
This paper mainly aims at the problem of high precision penetration of the first cross-sea shield tunnel of China,the oriented work flow,data processing and precision analysis,orientation error sources and weakening measures along with the practical application of the Y/JTQ-1 gyro total station are presented in details.By adopting the photoelectric integration method of the gyro total station under the frame,we can not only satisfy the precision of orientation survey in the process of tunnel excavation and effectively guiding the construction on site,but also improve the accuracy of tunnel breaking through and reduce the risk of tunnel holing-through.It can provide valuable experience in control survey for other tunnels of the similar scale type.
作者
刘运明
佟易
郭可才
高楚天
郭明
Liu Yunming;Tong Yi;Guo Kecai;Gao Chutian;Guo Ming(Beijing Urban Construction Exploration&Surveying Design Research Institute Co.,Ltd,Beijing 100101,China;Beijing Shenxindacheng Technology Co.,Ltd.,Beijing 102444,China;School of Geomatics and Urban Spatial Informatics,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)
出处
《工程勘察》
2021年第8期51-54,78,共5页
Geotechnical Investigation & Surveying
基金
北京市教委科研项目-科技计划一般项目(面上项目KM201810016013)
北京市属高校基本科研业务费项目(X18050)
国家海洋局南海分局海洋科学技术局长基金资助项目(1623).
关键词
陀螺全站仪
定向测量
过海地铁盾构隧道
贯通测量
gyroscope total station
orientation survey
cross-sea metro shield tunnel
transfixion survey