摘要
基于环境随机激励原理,对上海地铁一号线某重要路段进行现场大型模态测试试验,并通过理论和试验分析手段,根据现场时程响应数据,分析得到软土-隧道体系的自振频率,可为进一步的相关动力学分析提供计算参数.
Based on the principle of stochastic environmental excitation,the large scale on-site modal testing is applied on a certain portion of Shanghai Metro Line 1.In this paper,according to the time-progress response data,the natural frequencies of the soft-soil tunnel system are obtained by means of the theoretical and experimental analysis.It can provide the relevant calculaton parameters for further dynamic analysis.
出处
《上海师范大学学报（自然科学版）》
2011年第4期378-382,共5页
Journal of Shanghai Normal University(Natural Sciences)
基金
上海师范大学校级科研项目(DKL928)
关键词
软土-隧道体系
模态测试
环境随机激励
自振频率
soft soil-tunnel system
modal testing
stochastic environmental excitation
natural frequencies
