铁道科学与工程学报2026，Vol.23Issue(2)：530-541,12.DOI:10.19713/j.cnki.43-1423/u.T20250666
列车交会条件下高铁隧道衬砌掉块气动力行为
The aerodynamic behavior of the tunnel lining spalling block under train crossing
摘要
Abstract
Lining spalling in high-speed railway tunnels has become increasingly prominent due to long-term operation,posing a serious threat to train operational safety.Compared to single-train operation,train crossing within tunnels generates more complex aerodynamic effects,making the aerodynamic behavior of spalling blocks under such conditions particularly noteworthy.By utilizing the dynamic overset grid method and IDDES turbulence modeling,a refined 3D gas-solid coupling model was established.This model incorporates the lining spalling block,high-speed train,tunnel,and air under train crossing conditions.It enables accurate simulation of the transient motion process of spalling blocks and systematically investigates the influence of the spalling timing on the block's trajectory,attitude evolution,and force characteristics.The research findings indicate that:1)Spalling blocks exhibit significant displacement in the positive X-direction(exceeding 2.5 m)during tail-head and tail-middle crossing.Conversely,displacement in the negative X-direction is pronounced during middle-head and tail-tail crossings.The maximum Z-direction displacement(0.6 m)occurs during tail-middle crossings.2)The largest rotation angle occurs during head-head crossings,whereas the most stable motion is observed during middle-middle crossings.3)In tail-middle crossing scenarios,the vorticity distribution around the spalling block is complex and changes markedly over time,leading to larger displacements and rotation angles.In contrast,middle-middle crossing scenarios feature smaller and more uniformly distributed vorticity around the block,resulting in more stable motion.This research provides a theoretical foundation for the dynamic monitoring of lining defects and the prevention and control of operational safety risks in high-speed railway tunnels.关键词
高速铁路隧道/衬砌掉块/列车交会/气固耦合/运动轨迹/流场机制Key words
high-speed railway tunnel/lining spalling block/train crossing/gas-solid coupling/motion trajectory/flow field mechanism分类
交通工程引用本文复制引用
杨伟超,熊子郡,刘义康,邓锷,杨佳宝..列车交会条件下高铁隧道衬砌掉块气动力行为[J].铁道科学与工程学报,2026,23(2):530-541,12.基金项目
国家自然科学基金资助项目(51978670) （51978670）
中国中铁股份有限公司科技研发项目重大专项(2021-重大-04-2) （2021-重大-04-2）
中国中铁股份有限公司科技研究开发计划(2021-重大-01 （）
2022-重点-23) （）
