城市高架轨道交通体系振动与噪声控制

Control of Vibration and Noise in City Elevated Rail Transit System

高架轨道交通的振动与噪声问题是建设高架轨道交通的最大障碍 ,能否将振动和噪声控制在允许范围内 ,避免形成城市又一公害已成为高架轨道交通在城市可行与否的关键。本文分析了城市轨道车辆在运行过程中产生振动与噪声的原因 ,并从振源与噪声源、振动与噪声传播途径及振动与噪声承受物三个方面 ,综合阐述了可以采取的各种减振降噪措施 。

With the increase of city transpotration,rail transit system is the most attractive communication form,which has the characters of safety,comfort,rapid and which is on time.And elevated rail transit system becomes the world trend of the construction of city rail transit system,because it is economical,practical,efficient and safe.The concomitant vibration and noise have become the key points of feasibility of elevated rail transit system in city.The article analyses the reasons that produce vibration and noise.It provides many kinds of measures that prevent vibration and decrease noise from three aspects:the origin of vibration and noise,the spreading approach of vibration and noise and the receiver of vibration and noise.It can provide significative reference to the research of vibration and noise in city elevated rail transit system.