流固耦合作用下运营隧道裂损衬砌受力特征研究  

Research on the Stress Characteristic of Cracked Lining in Operating Tunnel under the Action of Fluid-Structure Interaction

作　　者：张峥 杨壮 ZHANG Zheng;YANG Zhuang(Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,Hubei,China)

机构地区：[1]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《工程技术研究》2025年第2期15-17,共3页Engineering and Technological Research

摘　　要：近年来,极端暴雨频发,给公路隧道运营带来了巨大挑战。文章基于华南某高速公路隧道,采用流固耦合模型研究裂损衬砌在不同水头条件下的受力特征。结果表明,裂损导致结构变形和受力呈非对称分布,地下水位升高加剧拱顶沉降、隧底隆起,水平变形影响较小。裂损部位应力随水位升高而增长,给隧道结构和运营安全带来了风险。建议公路管理部门加强雨季检查,及时修复裂损路段,确保防排水系统正常运行。In recent years,frequent occurrence of extreme rainstorms has brought great challenges to the operation of highway tunnels.Based on an expressway tunnel in South China,the Fluid-Structure Interaction model is used to study the stress characteristics of cracked lining under different water head conditions.The results show that the crack damage leads to the asymmetric distribution of structural deformation and stress,the increase of groundwater level aggravates the settlement of vault and the uplift of tunnel bottom,and the influence on horizontal deformation is small.The stress in the cracked area increases with the increase of water level,which brings risks to the tunnel structure and operation safety.It is suggested that the highway management department should strengthen inspection in rainy season,repair the cracked section in time,and ensure the normal operation of the drainage system.

关 键 词：运营隧道 衬砌裂损 流固耦合 受力特征 

分 类 号：U457[建筑科学—桥梁与隧道工程]