城市轨道交通环境影响评价振动预测模型对比分析

Comparison and Analysis of Vibration Prediction Models in Environmental Impact Assessment of Urban Rail Transit

近年来,城市轨道交通发展迅速,在已经开通运营的线路中,地下线比重相当大,约占总线路长度的70%。地下线在运营过程中产生的环境影响主要为环境振动。因此,预测列车运营过程中产生的环境振动影响是地下线环境影响评价的关键。通过系统地对比分析国家环境保护标准(《环境影响评价技术导则城市轨道交通》(HJ453-2008))和北京市地方标准(《地铁噪声与振动控制规范》(DB11/T 838-2011))中推荐的环境振动预测模型,结合地铁实际运营过程中产生的环境振动影响,分析这两种振动预测模型各自的优点和不足之处,为下一阶段国标和北京市地标的修订工作提出针对性的意见和建议。

Urban rail transit has developed rapidly in recent decades.Underground lines occupy a considerableproportion,about70%,of all the rail transit lines.However,the running trains on the underground transit lines can causeenvironmental vibration.Therefore,prediction of the environmental vibration induced by the underground trains operation isthe key of the environmental impact assessment of the underground transit lines.In this paper,the vibration prediction modelsrecommended by the state environmental protection standard-“Technical Guidelines for Environment Impact Assessment ofUrban Rail Transit”(HJ453-2008)and the local environmental protection standard of Beijing-“Code for ApplicationTechnique of Metro Noise and Vibration Control”(DB11/T838-2011)are compared and analyzed.Considering theenvironmental vibration impact in the process of actual train operation,the advantages and disadvantages of the two vibrationprediction models are analyzed.The corresponding opinions and suggestions are proposed for further revision of the nationalstandard and the Beijing local standard.