基于地铁轨检波形不平顺控制的轨道技术探讨

轨道不平顺性是引起列车产生振动和轮轨作用力增大的主要根源,对列车运营安全性、平稳、舒适度、使用寿命及环境噪声等都有重要影响。基于地铁轨检车波形数据,从高低、轨向、水平、轨距四类不平顺方面考虑,采用归类方法分析不同的轨道类型不平顺性特点,探讨提高轨道平顺性、舒适性措施及思路,介绍轨道精密定位的基础控制网技术提高轨道初始平顺性,轨道润滑技术,分析减振地段平顺性、全线轨枕间距控制,以及介绍消除轨道不平顺影响降低车内噪声提高乘客舒适度的轨道吸声板技术。

Discussion on Track Technical Measures Based on Metro Rail Irregularity Inspection

Track irregularity is the root cause for train vibration and the wheel / rail interaction,which imposes great impact on the safety,stability,comfort,service life and environment noise of train operation. This paper,based on the wave data obtained from the track inspection vehicle in terms of the height alignment,track level and gauge-related four irregularities,uses the classification method to analyze the different types of track irregularities and to improve track smoothness and riding comfort measures and concepts. This paper also introduces the track precision positioning based control network technology to improve the initial track smoothness and the rail lubrication technology and analyzes the regularities on anti vibration sections and the sleeper spacing control of the entire line. The application of acoustic panel to eliminate track irregularity,reduce vehicle interior noise and improve passenger riding comfort is illustrated.