土工基础

土工基础 ›› 2022, Vol. 36 ›› Issue (4): 670-674.

• 测试技术 • 上一篇    下一篇

基于监测数据对某隧道的变形稳定性分析

郭 颖1,3，王 敏2，冷先伦3,4   

  1. （1.安徽理工大学 土木建筑学院，安徽淮南 232000；2.中交二航局第四工程有限公司，安徽芜湖 241000；
    3.中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室，武汉 430071；4.中国科学院大学，北京 100049）
  • 收稿日期:2022-05-20 修回日期:2022-06-08 出版日期:2022-08-30 发布日期:2022-08-25
  • 作者简介:郭 颖（1995-），女，硕士研究生，研究方向为隧道围岩稳定等。

Deformation Stability Analysis of a Tunnel Using Monitored Data

GUO Ying1,3, WANG Min2， LENG Xianlun3,4   

  1. (1.School of Civil Engineering and Architecture, Anhui University of Technology, Huainan 232000；
    2.CCCCSHEC Fourth Engineering Co., Ltd., Wuhu 241000；
    3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071；
    4.University of Chinese Academy of Sciences, Beijing 100049)
  • Received:2022-05-20 Revised:2022-06-08 Online:2022-08-30 Published:2022-08-25

摘要： 隧道在施工过程中不可避免的会对地下稳定岩体造成扰动，进一步影响原岩的应力状态及稳定性，故对隧道围岩的地表沉降、拱顶下沉及洞周收敛提出了高严格的标准。为了确保隧道的安全施工，以广西某高速公路岗岭坡双洞隧道的监控量测为研究对象，选用合适的数理方法对监测数据进行回归性建模拟合分析，可以预测围岩及地表的最终位移以及根据位移速率趋势判断隧道进、出口段拱顶及地表沉降随时间的变化规律，较为准确的评价和分析围岩稳定性，分析隧道开挖影响的三维时空效应。

关键词: 回归性分析, 监测控制, 变形控制, 公路隧道

Abstract: A tunnel in the construction process will inevitably cause disturbance to the stability of the rock mass, and further affect the original rock stress state and stability, so the surface settlement, the crest subsidence of the tunnel surrounding rock mass convergence have much restrictive requirements. In order to ensure the safety of tunnel construction, this paper takes Guangxi Ganglingpo double cell tunnel of an expressway tunnel monitoring measurement as the research object and choose the appropriate mathematical methods for the analysis of the monitored data. The results of the analyses can predict the final displacement of the surrounding rock and the ground surface subsidence. The rate of the displacement at the tunnel aprons can be used to determine the stability of stability the surround rock mass and the three-dimensional space-time effect of tunnel excavation.

Key words: Regression Analysis, Monitoring and Control, Deformation Control, Highway Tunnel

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