中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (S1): 173-179.doi: 10.16265/j.cnki.issn1003-3033.2019.S1.031

• 公共安全 • 上一篇    下一篇

基于赣深高铁隧道监测数据的位移控制基准研究*

陈伟庚1 教授级高工, 傅鹤林2 教授, 严石生2, 叶新宇2, 卢向勇1, 刘常军3   

  1. 1 中国铁路广州局集团有限公司 深圳工程建设指挥部,广东 深圳 518000;
    2 中南大学 土木工程学院,湖南 长沙 410075;
    3 国家铁路局 工程质量监督中心,北京 100891
  • 收稿日期:2019-03-10 修回日期:2019-05-15 出版日期:2019-06-30 发布日期:2020-10-28
  • 作者简介:陈伟庚 (1973—),男,广东潮汕人,博士,教授级高工,主要从事铁路建设管理工作。E-mail: weigeng_chen@163.com。
  • 基金资助:
    国家自然科学基金资助(51578550);国家铁路总公司课题(J2018Z503)。

Study on displacement control standard based on monitoring data of ganshen high-speed railway tunnel

CHEN Weigeng1, FU Helin2, YAN Shisheng2, YE Xinyu2, LU Xiangyong1, LIU Changjun3   

  1. 1 Shenzhen Engineering Construction Command,China Railway Guangzhou Bureau Group Co. Ltd, Shenzhen Guangdong 518000, China;
    2 School of Civil Engineering, Central South University, Changsha Hunan 410075, China;
    3 Engineering Quality Supervision Center, State Railway Adrministration, Beijing 100891, China
  • Received:2019-03-10 Revised:2019-05-15 Online:2019-06-30 Published:2020-10-28

摘要: 为监测隧道初期支护,依托赣深高铁线石门岗隧道和松岗山隧道,对监测数据按围岩级别、隧道埋深和施工方法进行分类统计,取指数、对数和双曲线函数对数据进行包络回归分析试算,得到初期支护位移和距工作面距离的函数关系式,并给出隧道各分段初期支护位移和极限位移的占比。将统计结果与现行规范对比,给出石门岗隧道和松岗山隧道各分段初期支护位移控制基准建议值。结果表明:赣深高铁线石门岗隧道和松岗山隧道Ⅲ、Ⅳ、Ⅴ级围岩处于深埋地段各初期支护位移远小于现行规范所规定的极限位移值,初期支护位移控制基准与规范相差较大,隧道初期支护位移在距工作面距离超过6倍直径后总体趋于稳定。

关键词: 高铁隧道, 初期支护, 监测, 控制位移基准, 回归分析

Abstract: To monitor the tunnel primary support, relying on the Shimengang tunnel and the Songgangshan tunnel of the high-speed railway line from Ganzhou to Shenzhen, field monitoring on the displacement of primary support of the tunnel is carried out. Firstly, the monitoring data was classified and summarized according to the surrounding rock level, tunnel depth and construction method. And then, by taking the exponential, logarithm and hyperbolic functions to perform a trial calculation of the envelope regression analysis on the data, the function relation formula of primary support displacement and the distance from the excavation face was obtained, and the proportion of the primary support displacement and the limit displacement of each section of the tunnel was given. Finally, compared the statistical analysis results with the current high-speed railway tunnel specifications, the suggested values of primary support displacement control standard of each section of both tunnels were given. The results show that: the primary support displacement of Ⅲ, Ⅳ and Ⅴ surrounding rock of both tunnels in the deep buried section is much shorter than the limit displacement specified by the current code. The primary support displacement control standard differs greatly from the specification. The primary support displacement of the tunnel tends to be stable after the distance from the excavation face exceeding 6 times the diameter.

Key words: high-speed railway tunnel, primary support, monitoring measurement, deformation control criterion, regression analysis

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