高校地质学报2026，Vol.32Issue(2)：152-159,8.DOI:10.16108/j.issn1006-7493.2025033
复杂地质条件下隧道收敛变形精细监测方法研究
Investigation of Refined Monitoring Methods for Tunnel Convergence Deformation under Complex Geological Conditions
摘要
Abstract
Tunnel convergence deformation is the key points of monitoring,serves as a critical indicator of the interaction between surrounding rock and supporting structures,directly reflecting rock mass stability and the mechanical performance of the support system.Accurate and real-time monitoring of this deformation is essential,especially under the complex geological conditions.However,conventional monitoring techniques,which primarily rely on manual measurements and simple instruments,often fall short in precision and continuity.Distributed optical fiber sensing technology,with its advantages such as long distance,good durability,strong anti-interference ability and the ability to achieve real-time monitoring,provides a new technical means for the precise monitoring of tunnel convergence deformation.This study presents a novel method for distributed fiber optic sensing-based monitoring of tunnel circumferential convergence,incorporating an optimized cable deployment strategy and a strain-to-displacement inversion algorithm.Laboratory model tests were conducted to validate the feasibility and accuracy of the proposed approach.The results demonstrate that the method can effectively identify deformation zones and assess the overall stress distribution based on strain profile analysis.The use of a dual-cable layout minimizes computational assumptions and enables direct conversion of strain data into point displacements,offering high efficiency and reliable accuracy.The monitoring accuracy is primarily influenced by the design and installation quality of the sensing setup.Enhancements in device stability,reduction of optical loss,and improved fixation techniques are shown to further increase measurement precision.The findings provide a novel approach for refined monitoring of tunnel deformation under complex geological conditions.关键词
隧道监测/收敛变形/分布式光纤感测技术/反演模型/试验研究Key words
tunnel monitoring/convergence deformation/distributed fiber optic sensing technology/inversion model/experimental study分类
天文与地球科学引用本文复制引用
汤子安,张诚成,郭君仪,贾立翔,施斌..复杂地质条件下隧道收敛变形精细监测方法研究[J].高校地质学报,2026,32(2):152-159,8.基金项目
国家自然科学基金重点项目(42030701)资助 （42030701）
