摘要
150年来地下铁道得到了广泛的发展,近20年来我国的地下铁道更是得到了迅猛的发展。在地下铁道给城市居民的工作和生活带来方便的同时,其引发的振动与噪音也给城市建设和居民生活带来了危害。本文从振动产生、振动传播和振动作用三个阶段论述了地铁振源及其传播的规律;传播特性与振源频率、振源与轨道距离、振动频率,以及列车运行速度、隧道埋深、地质条件、建筑物结构等有关;振动传播影响因素包括:土壤类型、钢轨类型、轨道类型、建筑物质量类型、建筑物材料等;地铁振动的危害是多方面的,噪声干扰人们的日常生活,振动对建筑物的安全性、使用寿命造成影响,同时还影响精密仪表测量等。本文提出了在规划设计阶段、施工阶段的振动控制措施,以期减小其危害。
The metro industry has been extensively developed in recent 150 years. It has been more rapid developed especially in our country in the past 20 years. As metro system bring us convenience for transportation of city residents, it also produces negative effects such as vibration and noise it inducing. This paper classifies the vibration source and propagation of the metro into three stages, vibration generation, vibration transmission and vibration effects. The transmission characteristics is related to the local oscillator frequency, vibration source and the orbital distance, vibration frequency, and the train speed, tunnel depth, geological conditions, and the building structure. Variety of vibration transmission factors include soil type, rail type, track type, building quality, type, building materials. The damage from metro vibration is various, for example, noise disturbance to people＇s daily lives, vibration to building security and life impact, affecting measurement precision to the instruments. The paper proposes vibration control measures to reduce the damage in planning, design, and construction phase respectivelly.
出处
《震灾防御技术》
2011年第1期77-84,共8页
Technology for Earthquake Disaster Prevention
基金
"低功耗通用数据采集器实用化研究"基本科研业务
