西安轨道交通运营线路振动源强度实测研究
马茜
Study on Vibration Source Intensity measurement of Xi’an Rail Transit Operation Line
MA Qian
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作者信息:西咸新区轨道交通投资建设有限公司，710086，西安
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Affiliation:Author′s addressXixian New Area Rail Transit Investment and Construction Co., Ltd., 710086, Xi’an, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2022.12.021
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中图分类号/CLCN:U211.3: U231.2
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栏目/Col:研究报告
摘要:
对西安轨道交通已运营的4条线路进行了振动源强度实测，分析了钢轨至隧道壁振动的衰减特征以及列车振动的衰减规律，并讨论了曲线半径及道床类型对减振效果的影响。结果表明，从减振效果来看，在同等条件下，大曲线半径线路优于小曲线半径线路，减振垫浮置板道床优于短轨枕式整体道床，钢弹簧浮置板道床优于碎石道床。
Abstracts:
Vibration source intensity of four operating lines in Xi′an rail transit is measured systematically. The attenuation characteristics of vibration from rail to tunnel wall and the attenuation pattern of train vibration are analyzed. The impact of line curve radius and track bed type on vibration reduction effect is discussed. Research results show that,in terms of damping effect, large curvature radius line is better than small curvature radius line, damping pad floating slab track bed better than short sleeper monolithic track bed, and steel spring floating slab track bed better than ballast bed under the same conditions.
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