高速铁路轨道结构检测关键理论与方法

项目名称： 高速铁路轨道结构检测关键理论与方法

项目编号： No.U1234201

项目类型： 联合基金项目

立项/批准年度： 2013

项目学科： 建筑科学

项目作者： 王平

作者单位： 西南交通大学

项目金额： 270万元

中文摘要： 针对高速铁路轨道结构安全长效服役急需的三项关键检测内容，应用理论研究、仿真分析、现场试验相结合的方法，开展轨道几何不平顺高效检测、无缝线路状态监测、轨道刚度移动检测的理论与方法研究，探索构建面向工务维护及实时反馈的检测评估体系。将建立基于空间曲线、动静结合的轨道几何不平顺高效检测理论，提出考虑波长影响的轨道不平顺评价和控制方法，指导新型轨检仪的研发。将建立基于双向应变法、光纤光栅法、无线自组网技术、Web网络远程监控技术的无缝线路状态检测理论，提出高敏感区段多参数、多源评判的综合评估理论，为研制无缝线路状态长期、广域监测平台提供理论及技术支持。研究轨道刚度与钢轨模态参数的相关规律，建立基于人工激励、模态参数识别轨道刚度检测理论，提出移动式激振及拾振技术，为轨道刚度在线检测提供新思路。其成果对确保高速列车的安全运行、实现轨道结构的科学养护维修具有十分重要的意义和良好的应用前景。

中文关键词： 高速铁路；轨道结构；安全；检测；评估

英文摘要： For the three key measurement content which is using the method of combining with theoretical research, simulation analysis and field test is urgently needed in the safe and long-term service of the track structure of High Speed Railway, carrying out the theory and method study of rack geometric irregularity rapid test, continuous welded rail condition monitoring and track stiffness movement detection is to explore to construct works maintenance and real-time feedback test evaluation system. The topic will build the efficient test theory of track geometric irregularity based on space curve and dynamic static integrated method, coming up with the evaluation and control method with considering the wave length influence ,and guiding the research and development of new type railway inspection instrument. Then the topic builds the condition monitoring theory of continuous welded rail based on two-way strain method, fiber Bragg grating method, wireless ad-hoc network and Network remote control techniques, putting forward the theory of comprehensive evaluation of multi-parameter and multi-source fuzzy evaluation in high sensitive section, and providing the theoretical and technical support for the development of long time and wide area Monitoring Platform of CWR state. At the same time, the topic researchs related laws

英文关键词： High-speed railway；Track structure；Safety；Detection；Assessment