城市轨道交通高架线路曲线段异常噪声综合治理
刘宇航1周昌盛1刘锦辉2周华龙1陈赛1
Comprehensive Treatment of Curved Section Abnormal Noise for Elevated Urban Rail Transit Line
LIU Yuhang1ZHOU Changsheng1LIU jinhui2ZHOU Hualong1CHEN Sai1
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作者信息:1.中铁二院工程集团有限责任公司，610031，成都
2.深圳市地铁集团有限公司，518026，深圳
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Affiliation:1.China Railway Eryuan Engineering Group Co., Ltd., 610031, Chengdu，China
2.Shenzhen Metro Group Co., Ltd., 518026, Shenzhen，China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2025.01.017
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中图分类号/CLCN:TB533+.2∶U233
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栏目/Col:研究报告
摘要:
［目的］城市轨道交通运行过程中的振动噪声问题逐渐突显，尤其高架线路噪声影响范围更广，成为了居民投诉的热点，有必要对城市轨道交通高架线路的异常噪声进行综合治理研究，尤其是缓解“曲线啸叫”噪声带来的扰民问题。［方法］以深圳某地铁高架线路曲线段出现的异常振动噪声为依托，分别进行了现场情况调查与环境噪声测试，并实施了针对性治理措施。依据治理前后以及不同工况下的现场测试结果，对比分析得到不同措施实施前后的治理效果。［结果及结论］轨顶涂覆装置对总的轮轨噪声水平影响较小，但能有效抑制啸叫噪声；钢轨打磨后消除了曲线段短波波磨，对于降低轮轨噪声具有十分显著的效果；行车速度优化对于缓解轮轨噪声具有一定效果，且能避免出现钢轨侧磨；通过不同治理措施的综合应用，轨旁噪声峰值降低7.4dB(A)，噪声等效值降低5.9dB(A)；居民楼处监测到的过车噪声较背景噪声的峰值降低至0.5dB(A)，噪声等效值降低至0.3dB(A)，治理措施的降噪效果显著，地铁噪声对环境贡献量已较低，且“曲线啸叫”噪声不再出现。
Abstracts:
［Objective］ Problems of vibration and noise during the urban rail transit operation are becoming increasingly prominent. In particular, the wider impact range of elevated line noise has become a hot spot of resident complaints. Therefore, it is necessary to conduct comprehensive treatment research on the abnormal noise from urban rail transit elevated lines to alleviate the disturbance to the residents mainly caused by the "curve squeaking" noise. ［Method］ Based on the abnormal vibration and noise occurring in the curved section of an elevated metro line in Shenzhen, on-site investigation and environment noise tests are carried out respectively, corresponding treatment measures are implemented. According to the on-site test results before and after the treatment as well as under different working conditions, the noise control effects are obtained through comparative analysis of the results before and after the implementation of different measures. ［Result & Conclusion］ The rail top coating device has little influence on the overall wheel-rail noise level, but can effectively suppress the squealing noise. Grinding steel rail has significant effect on reducing wheel-rail noise, and the short-wave corrugation in the curved section is eliminated. Optimizing the train driving speed has certain effect on lessening wheel-rail noise, and can avoid the occurrence of rail side wear. Through the comprehensive application of different treatment measures, the peak value of the track-side noise is reduced by 7.4 dB(A), and the equivalent noise value is reduced by 5.9 dB(A). The peak value of the train passing noise detected at residential buildings is reduced to 0.5 dB(A) compared with the background noise, and the equivalent noise value is reduced to 0.3 dB(A). The treatment measures show a remarkable noise reduction effect in that the metro noise contributes little to the environment and the curve squealing noise no longer appears.
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