[1]孔得辉,刘志,陈坤,等.高精度陀螺仪在提高超长铁路隧道横向贯通精度中的应用[J].高速铁路技术,2025,(01):82-86,92.[doi:10.12098/j.issn.1674-8247.2025.01.013]
　KONG Dehui LIU Zhi CHEN Kun ZHOU Tao FAN Haigang.Application of High-precision Gyroscope in Improving the Lateral Breakthrough Accuracy of Ultra-long Railway Tunnels[J].HIGH SPEED RAILWAY TECHNOLOGY,2025,(01):82-86,92.[doi:10.12098/j.issn.1674-8247.2025.01.013]
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高精度陀螺仪在提高超长铁路隧道横向贯通精度中的应用()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
期数:
2025年01期
页码:
82-86,92
栏目:
研究创新
出版日期:
2025-02-20

文章信息/Info

Title:
Application of High-precision Gyroscope in Improving the Lateral Breakthrough Accuracy of Ultra-long Railway Tunnels
文章编号:
1674-8247(2025)01-0082-05
作者:
孔得辉; 刘志; 陈坤; 周涛; 樊海刚
(中铁二院工程集团有限责任公司, 成都 610031)
Author(s):
KONG Dehui LIU Zhi CHEN Kun ZHOU Tao FAN Haigang
(China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031,China
关键词:
超长铁路隧道;  高精度陀螺仪;  贯通精度;  误差预计
Keywords:
ultra-long railway tunnel;  high-precision gyroscope;  breakthrough accuracy;  error prediction
分类号:
U212.24
DOI:
10.12098/j.issn.1674-8247.2025.01.013
文献标志码:
A
摘要:
为促进国家经济的均衡发展,我国西部及边远山区的铁路、公路等交通工程建设逐渐增加,隧道设计和施工中出现超长隧道,而传统单一的导线测量方法已经不能满足隧道横向贯通精度要求。本文以成兰铁路跃龙门超长隧道为依托,采用高精度陀螺仪加测隧道洞内导线陀螺方位角,通过比较隧道内陀螺方位角与坐标方位角评价洞内导线测量精度,利用陀螺定向方位角对洞内导线边进行带权融合约束平差,以提高超长铁路隧道横向贯通精度。数据结果表明,当隧道内加测2条以上陀螺边时,隧道贯通精度可提升1倍以上,精度增益明显。研究成果可为类似工程贯通测量提供借鉴和参考。
Abstract:
To promote the balanced development of the national economy, the construction of transportation projects such as railways and highways in western and remote mountainous areas of China has gradually increased. In tunnel design and construction, ultra long tunnels have emerged, and traditional single traverse survey method can no longer meet the accuracy requirements of tunnel lateral breakthrough. Based on the Yuelongmen Ultra-long Tunnel of Chengdu-Lanzhou Railway, this paper adopted high-precision gyroscopes to measure the tunnel traverse gyro azimuth inside the tunnel. By comparing the gyro azimuth with coordinate azimuth inside the tunnel, the accuracy of the tunnel traverse survey was evaluated. Weighted fusion constraint adjustment was applied to the traverse sides inside the tunnel using gyro orientation azimuths to improve the lateral breakthrough accuracy of ultra-long railway tunnels. The data results indicate that when more than two gyroscopic sides are measured inside the tunnel, the tunnel breakthrough accuracy can be doubled or more, with a significant accuracy gain. The research findings can provide references for breakthrough surveys of similar projects.

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备注/Memo

备注/Memo:
收稿日期:2024-05-15
作者简介:孔得辉(1993-),男,工程师。
基金项目:中铁二院工程集团有限责任公司科研项目(KSNQ213012)
更新日期/Last Update: 2025-02-20