防灾减灾工程学报2026，Vol.46Issue(2)：360-368,9.DOI:10.13409/j.cnki.jdpme.20250110003
走滑断层错动下高速铁路隧-轨系统变形及损伤研究
Research on Deformation and Damage of High-speed Railway Tunnel-track System under Strike-slip Fault Dislocation
摘要
Abstract
Existing studies on the seismic performance of high-speed railway(HSR)tunnels primarily focus on the lining and its interaction with the surrounding rock,while studies on the damage of slab ballastless tracks and the evaluation of train operational function remain insufficient.This study aims to analyze the damage evolution of the HSR tunnel-track system and its impact on track serviceability under strike-slip fault dislocation by introducing a concrete plastic damage constitutive model and a track irregularity analysis method.A refined finite element model was established using Abaqus soft-ware to simulate and analyze typical working conditions,revealing the damage mechanisms of the tun-nels and tracks under seismic action.The results indicated that the operational function of the tunnel was affected first,primarily manifested as track irregularities,which typically occurred before signifi-cant damage in the track and lining structure.Severe damage to the tunnel lining structure occurred on-ly when the fault dislocation reached a certain threshold,further affecting its stability and safety.Through numerical simulation and analysis,this study reveals the damage evolution mechanism of the tunnel-track system under seismic action,providing theoretical support and technical guidance for the assessment of seismic damage and deformation risks of HSR tunnel systems in strong seismic regions of China.It also offers new insights and methods for the future seismic design and optimization of HSR tunnels.关键词
高速铁路隧道/走滑断层/围岩-隧-轨系统/损伤演化/轨道不平顺/数值模拟Key words
high-speed railway tunnel/strike-slip fault/surrounding rock-tunnel-track system/damage evolution/track irregularity/numerical simulation分类
建筑与水利引用本文复制引用
赵旭,刘轩宇,黄景琦,赵密,杜修力..走滑断层错动下高速铁路隧-轨系统变形及损伤研究[J].防灾减灾工程学报,2026,46(2):360-368,9.基金项目
国家重点研发计划项目(2022YFC3004300)资助 （2022YFC3004300）
