摘要
为研究新建市政道路桩板结构下穿对高速铁路桥梁变形的影响,现以某新建市政道路工程下穿既有高铁桥梁为工程实例,为确保铁路运营的安全,利用桩土共同作用有限元软件Midas GTS NX模拟分析该工程实施以及运营期间引起的既有高铁桥梁的附加变形。结果表明:该新建市政道路工程采用桩板结构下穿方案对高铁桥梁影响较小,且理论结果与现场自动化监测高铁桥梁变形趋势大体一致,结果较吻合,均在规范变形控制范围内。
In order to study the influence of the underneath passing of pile-plate structure in the new municipal roads on the deformation of high-speed railway bridge,taking a new municipal road project passing underneath the existing high-peed railway bridge as an engineering case,and in order to ensure the safety of the railway operation,the finite element software of pile-soil interaction Midas GTS NX is used to simulate and analyze the additional deformation of the existing high-speed railway bridge caused by the implementation and operation of the project.The results show that the underneath passing scheme of the pile-plate structure adopted in this new municipal road project has a little influence on the high-speed railway bridge.And the theoretical results are generally consistent with the deformation trend of high-speed railway bridge by on-site automatic monitoring.The results are in good agreement,and are all within the standard deformation control range.
出处
《城市道桥与防洪》
2023年第1期97-99,121,I0011,I0012,共6页
Urban Roads Bridges & Flood Control
基金
中铁上海设计院集团有限公司年度科研课题《下穿铁路桩板桥自动化设计程序开发》。
关键词
市政道路
自动化监测
桩板结构
下穿高铁
有限元分析
municipal road
automatic monitoring
pile-plate structure
passing underneath high-speed railway
finite element analysis
