断层破碎带隧道围岩变形监测技术及应用  

MONITORING TECHNOLOGY AND APPLICATION OF SURROUNDING ROCK DEFORMATION IN TUNNEL WITH FAULT FRACTURE ZONE

作　　者：陈绍恺 蔡海兵[1] 姚方兴 李子祥 袁助 潘鑫 CHEN Shaokai;CAI Haibing;YAO Fangxing;LI Zixiang;YUAN Zhu;PAN Xin(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Anhui Huainan 232000,China;Anhui Provincial Transportation Holding Group Co.,Ltd.,Hefei 230000,China)

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232000 [2]安徽省交通控股集团有限公司,合肥230000

出　　处：《低温建筑技术》2025年第1期105-109,共5页Low Temperature Architecture Technology

基　　金：安徽省自然科学基金项目(2308085ME188);安徽交通控股集团交通科技攻关项目(JKKJ-2018-31)。

摘　　要：确定围岩松动圈的范围是保障隧道工程安全的重要工作之一,与传统监测技术相比,BOTDR分布式光纤感测技术对环境适应性强,且更为耐久便携。文中以芜黄高速雾岭头公路隧道工程为依托,介绍了BOTDR分布式光纤感测技术原理及具体监测方法,通过最终监测数据确定所选隧道断面围岩松动圈范围。结果表明BOTDR分布式光纤感测技术能够十分高效的对隧道围岩变形进行监测,并确定出围岩松动圈大致范围在3~4 m区间内,它在隧道围岩监测方面具有一定优势。此监测方法能够适用于多种隧道工况,为类似工程施工提供依据。Determining the range of the loosened zone in surrounding rock is crucial for ensuring tunnel engineering safety.Compared to traditional monitoring techniques,Brillouin Optical Time Domain Reflectometry(BOTDR)dis⁃tributed fiber sensing technology offers stronger environmental adaptability,durability,and portability.Taking the Wulingtou highway tunnel project on the Wuhuang expressway as the case,this paper introduces the principles and specific monitoring methods of BOTDR distributed fiber sensing technology.Monitoring data are used to determine the range of the loosened zone in the surrounding rock of the selected tunnel section.The results indicate that BOT⁃DR distributed fiber sensing technology efficiently monitors deformation in surrounding rock and identifies the loos⁃ened zone range,which is approximately 3~4 meters.This technology demonstrates significant advantages in tunnel surrounding rock monitoring and can be applied to various tunnel conditions,providing a reliable reference for simi⁃lar engineering projects.

关 键 词：围岩松动圈 BOTDR分布式光纤感测技术 断层破碎带 隧道围岩变形 

分 类 号：TU745.3[建筑科学—建筑技术科学]