| 高铁钢轨预打磨效果及轨面不平顺分析 |
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| 引用本文： | 王庆方,许玉德,周宇. 高铁钢轨预打磨效果及轨面不平顺分析[J]. 华东交通大学学报, 2012, 0(2): 1-5 |
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| 作者姓名： | 王庆方 许玉德 周宇 |
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| 作者单位： | 同济大学道路与交通工程教育部重点实验室 |
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| 基金项目： | 国家自然科学基金项目(50908179);高等学校博士学科点专项科研基金项目(200802471003) |
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| 摘 要： | 高铁的高平顺性要求在线路开通前要进行钢轨预打磨,以沪宁城际高铁为样本,通过分析钢轨打磨前状态,发现新轨上道后存在光带不在轨顶中部,甚至有两点接触等问题,借鉴欧洲铁路在研究轮轨噪声时制定的轨面粗糙度水平标准和钢轨打磨、铣磨作业标准,利用1/3倍频和各波长范围的幅值统计,对钢轨预打磨后轨面不平顺状态进行评价,结果表明钢轨预打磨能够有效改善了轨面的不平顺状态。
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| 关 键 词： | 高速铁路 钢轨打磨 轨面不平顺 |
Pre-grinding Effect of High-speed Railway and Track Irregularity Analysis |
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| Wang Qingfang,Xu Yude,Zhou Yu. Pre-grinding Effect of High-speed Railway and Track Irregularity Analysis[J]. Journal of East China Jiaotong University, 2012, 0(2): 1-5 |
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| Authors: | Wang Qingfang Xu Yude Zhou Yu |
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| Affiliation: | (Key Laboratory of Road and Traffic Engineering of Ministry of Education,Tongji University,Shanghai 201804,China) |
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| Abstract: | High track regularity of high speed railway requires pre-grinding the track before its operation.Adopting Huning High-speed Railway as a sample,by analyzing the state before rail grinding,the paper finds that light brand does not stay in the middle of railhead and two-point contacting problem.Referring to European standard of roughness levels of measuring noise emitted by rail bound vehicles and the standard of rail grinding and milling work in track,the author evaluates the state of longitudinal irregularity by using one-third octave and statistic analysis of amplitude of different wavelength range.Results show that track grinding is an effective measure to correct the surface irregularities greatly. |
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| Keywords: | high-speed railway rail grinding track irregularity |
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