This paper investigates the relative problems in the standards of vibrations, VLzmax and VLz10 has been proposed respectively as the index of vibration estimation for urban train and environment background. This paper also gives suggestions on the applications standard of JGJ/T 170-2009.%对现行的振动评价标准中相关问题进行分析,认为VLzmax和VLz10分别作为城市轨道交通列车振动和环境振动背景评价量是合理的。并对标准JGJ/T 170-2009应用提出了建议。
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