摘要
随着不同轨道电路的新型列控技术的应用,对实时断轨检测方法的研究愈发显得重要和紧迫.本文分别阐述了牵引回流实时断轨检测方法、准轨道电路实时断轨检测方法、光纤实时断轨检测方法、应力实时断轨检测方法、声波实时断轨检测方法的工作原理、优缺点和关键技术.指出牵引回流实时断轨检测方法和准轨道电路实时断轨检测方法所涉及的理论和技术相对成熟,容易实现,具有一定的开发价值,但其工作状态受道床条件的影响;光纤实时断轨检测方法和应力实时断轨检测方法的工作状态不受道床条件影响,但其安装维护困难,开发价值较小;而声波实时断轨检测方法具有不受道床条件影响和安装维护简单的优点,是一种实际应用前景较好的检测方法.
With the application of new technologies for train control without track circuits,the research of a new real-time detection method of broken rail is more and more important and urgent.The operation principles,the merits and defects and the key technologies of the traction-return-current-based,the quasi-track-circuit-based,the fiber-optic-based,the strain-based and the acoustic-based real-time broken rail detection methods are expounded respectively.And some conclusions are drawn as follows：as the theories and technologies of the traction-return-current-based and the quasi-track-circuit-based real-time broken rail detection methods are ripe and easy to be realized,the methods have certain value to be developed,but their working states are influenced by the condition of the ballast bed;the working states of the quasi-track-circuit-based and the fiber-optic-based real-time broken rail detection methods are free of the condition of the ballast bed,but their installation and maintenance are difficult,so the methods have less value to be developed;as the acoustic-based real-time broken rail detection has the merits which is independent of the condition of the ballast bed and is easy to install and maintain,the method is a good one to be employed actually in the future.
出处
《兰州交通大学学报》
CAS
2011年第1期122-126,共5页
Journal of Lanzhou Jiaotong University
基金
甘肃省自然科学基金(2008GS02623)
关键词
实时断轨检测
方法
综述
real-time broken rail detection
method
summary
