This paper sets the proposed precise processing plant as the background.By using vibration testing devices to gather the spot test result of one side of the above plant ground＇s micro-vibration,which caused by the normal transportation on the Cheng-Ya freeway,the site observation data have been data feature analyzed.Therefore,the major factors produce the ground vibration are found as： the propagation feature of vehicle transporting load on highways,the running speed and load of the vehicle,and the distance away from the focus.%以某拟建精密工艺厂房为背景,采用振动测试仪器对成雅高速路上正常交通运行下引起的拟建的某厂房一侧地面微振动进行现场测试采集,并对现场实测数据进行数据特征分析,得出高速公路上的汽车交通荷载的传播特征,车辆的运行速度、荷载和离振源的距离是影响地面振动的主要因素。
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