噪声与振动控制Issue(1)：99-103,5.DOI:10.3969/j.issn.1006-1335.2015.01.020
重载铁路引起地面振动的试验与分析
Testing and Analysis of Ground Vibration Induced by Heavy-haul Railway Operation
摘要
Abstract
Field test of ground vibration induced by heavy-haul railway operation was conducted. The transverse and vertical velocities of ground vibration at the distance of 7.5 m, 15 m, 30 m, 60 m, 90 m away from the rail were measured re-spectively. The amplitude and frequency characteristics of the vibration velocity were analyzed, and the vibration source characteristics, propagation characteristics and attenuation laws of the ground vibration induced by the heavy-haul train were obtained. The relation among the axle load, velocity of the train and the vibration was derived. Results show that the vibra-tion components caused by the train have obvious peaks at each measuring point in 5-10 Hz frequency range. With the dis-tance from the rail to the measurement point increasing, high frequency components of transverse and vertical velocities de-cay faster than the low frequency components. The Peak Particle Velocity (PPV) of the ground decays as a power law. At the distances of 7.5-15 m, the PPV decays significantly. At the distance of 7.5 m, the PPV values of transverse and vertical vibra-tions are close to each other. At the distances beyond 15 m,The PPV of the transverse velocity decays faster than that of the vertical velocity. Vibration velocity increases as the train speed and axle load increasing.关键词
振动与波/重载铁路/地面振动/轴重/峰值振动速度Key words
vibration and wave/heavy-haul railway/ground vibration/axle load/peak particle velocity (PPV)分类
通用工业技术引用本文复制引用
孟鑫,刘鹏辉,姚京川,王巍,董振升,尹京..重载铁路引起地面振动的试验与分析[J].噪声与振动控制,2015,(1):99-103,5.基金项目
国家自然科学基金资助项目（51378500）；中国铁路总公司科技研究开发计划资助项目 （）
