铁道科学与工程学报2013，Vol.10Issue(2)：108-113,6.
货物列车运行引起的大地振动及其对精密仪器的影响
Study on the ground vibration and its impact on precision instruments induced by freight train
摘要
Abstract
In order to calculate the ground vibration response caused by freight train with different speeds,the track-bridge and pier-foundation-ground models were established by using finite element method.Then the attenuation rule of vibration acceleration,velocity and displacement along the distance was derived and the effect of railway environment vibration on precision instrument inside the plant.The results show that the freight train speed has a great influence on vibration response,and the higher train speed it is,the greater vibration response in the same position of the ground will have.The attenuation characteristics of acceleration,velocity and displacement along the distance are substantially uniform,and it obeys the exponential attenuation law.When two freight trains with the speed of 120,100 and 80 km/h meet near factory plant,the prediction values of acceleration,speed and displacement are less than the vibration limit values of the spectrometer,and the prediction values of acceleration satisfies the vibration limit values of the Core-making machine.关键词
货物列车/大地振动/精密仪器/有限元法/振动响应Key words
freight train/ground vibration/precision instruments/finite element method/vibration response分类
交通工程引用本文复制引用
张鹏飞,雷晓燕,高亮,刘庆杰..货物列车运行引起的大地振动及其对精密仪器的影响[J].铁道科学与工程学报,2013,10(2):108-113,6.基金项目
国家自然科学基金资助项目(51268016) （51268016）
江西省自然科学基金资助项目(2010GQC0030) （2010GQC0030）
江西省教育厅项目(GJJ11119) （GJJ11119）
华东交通大学科研基金资助项目(10TM01) （10TM01）
