上海国土资源Issue(3)：45-49,5.DOI:10.3969/j.issn.2095-1329.2012.03.012
地基土中道路交通振动的衰减特性测试分析
Analysis of the Effect of Road Traffic Load on the Vibration Attenuation Characteristics of Foundation Soils
摘要
Abstract
This article discusses the results of field vibration testing in 50 m and 80 m deep boreholes to assess the effects of road traffic load on displacement attenuation relationships in both time and frequency domains in underground soils, focusing on traffic density. This research indicates that peak frequencies are gradual y reduced with increasing depth, with peak attenuation factor close to 0.2 at depth of about 40 m and coincident decrease in vibration attenuation. When compared to the attenuation curve in an elastic Rayleigh wave half-space, horizontal displacements decrease slowly but attenuation factors gradual y migrate towards the attenuation curve with increasing depth, with vertical displacement reducing at a larger rate than the attenuation curve with increasing depth.关键词
交通振动/地基土/应力传递/衰减规律/瑞利波Key words
traffic vibration/foundation soil/stress transfer/attenuation characteristic/Rayleigh wave分类
建筑与水利引用本文复制引用
黄永进..地基土中道路交通振动的衰减特性测试分析[J].上海国土资源,2012,(3):45-49,5.基金项目
上海市科委科研计划项目(10231200704) （10231200704）
