摘要
提出地铁环境振动敏感度的概念和计算方法。通过对敏感度的等级划分,采取以降低敏感度为设计思想的地铁综合减振措施,可以避免陷入单一"轨道减振"的误区。基于对敏感度的计算分析,结合地铁设计步骤,提出分阶段的动态振动预测评价体系,利用不同振动预测方法的优势,以实现准确、经济、可行的振动预测评价。
The concept and calculation method for sensitivity of environmental vibration （SEV） are proposed. According to the classification of SEV, when the comprehensive vibration mitigation measures are taken for reducing SEV, it is possible to avoid considering the vibration mitigation measures on track only. Based on the calculation and analysis of SEV and the metro design in different steps, an environmental vibration prediction and evaluation method by stages is proposed, which helps to integrate advantages of different prediction approaches. The proposed method is exact, economical and feasible.
出处
《都市快轨交通》
北大核心
2012年第6期65-69,共5页
Urban Rapid Rail Transit
基金
国家自然科学基金项目(51278043)
关键词
地铁
振动预测
敏感度
减振
动态环境评价
metro
vibration prediction
SEV
dynamic environmental evaluation
