摘要
以上海浦东机场二期航站楼软土场地为例,应用二维土体模型和一维土体模型分别计算了深覆盖土层的地震反应,讨论了古河道对场地地震动参数的影响。此外,在二维土层地震反应分析中,进一步对比了基岩面地震波行波输入和一致输入下,场地地震动参数的差异。
Taking the site of terminal building of Pudong International Airport Phase 2 as an example, the seismic responses of soil layer with deep deposits have been calculated using both two dimensional and one dimensional models respectively, and the effects of the ancient river bed buffed in the engineering site on the seismic parameters are discussed. Moreover, the seismic responses of the soil layer are analyzed under the excitations of the seismic traveling-wave and uniform input respectively for comparing the differences between seismic parameters of the site with and without considering the effect of buried ancient river bed.
出处
《震灾防御技术》
2008年第4期421-428,共8页
Technology for Earthquake Disaster Prevention
基金
上海市科委基础研究资助项目(编号:07JC14051)
国家自然科学基金资助项目(编号:50538050)
关键词
古河道
一维土体模型
二维土体模型
基岩一致输入
基岩行波输入
Equivalent linearization
One-dimensional soil site model
Two-dimensional soil site model
Uniform input
Traveling-wave input
