铁道标准设计2024，Vol.68Issue(7)：26-32,77,8.DOI:10.13238/j.issn.1004-2954.202301080001
震灾铁路线路修复方案优化设计方法研究
Study on Optimized Design Method of Repair Scheme of Railway Line in Earthquake Disaster
摘要
Abstract
Under the influence of earthquake or secondary geological disasters caused by earthquake,it will lead to the dislocation of railway lines,which will not only affect the normal operation of railway,but also cause serious railway safety accidents.Aiming at the problem of repairing the dislocation line,taking a railway tunnel line dislocation as an engineering case,the minimum engineering quantity as the remediation goal,the provisions in the Code for Design of Railway Line as the constraint condition,and the calculation of the comprehensive elements of the curve as the calculation method,a repair scheme for railway line dislocation is proposed,which can maximize the use of the original line for repair to reduce the amount of engineering.Combined with SIMPACK simulation software,the three-carriages simulation model of vehicle dynamics is created with the parameters of CRH2G EMU,and the dynamic response analysis of repair scheme of the tunnel line is carried out from the perspective of safety and stability.The results show that the repair length of the line is only about 410 m longer than the original line,and the proportion of using the original line is 84.6% .In the process of vehicle simulation operation,the dynamic response of the head car and the tail car is large,and the dynamic response of the middle car is small.After the main analysis of the head car and the tail car,it is concluded that the vehicle dynamics index meets the specification limit.It is proved that the repair scheme of the line can not only reduce the engineering quantity by using the original line as much as possible,but also satisfy the safety and stability of vehicle operation.关键词
地震/铁路线路错位/SIMPACK/车辆动力学仿真模型/铁路线路修复方案/动力响应分析Key words
earthquake/dislocation railway line/SIMPACK/simulation model of vehicle dynamics/repair scheme of railway line/dynamic response analysis分类
交通工程引用本文复制引用
周振乾,王保成..震灾铁路线路修复方案优化设计方法研究[J].铁道标准设计,2024,68(7):26-32,77,8.基金项目
国家自然科学基金项目(51568037) （51568037）
