摘要
采用相似准则物理模拟方法建立了一个微群桩复合地基模型,借助大型有限元分析软件Marc对该模型沉降特性进行数值模拟,找出了位移场和应力场的一些基本规律,表明微桩对加固地基减少沉降起了显著作用;在静力分析基础上,利用Marc程序对天然地基和微群桩复合地基进行地震动力时程分析,得出桩的加入有利于地基抗震等规律,为微群桩复合地基工程设计及应用提供了依据.
Based on similar principles, a micropile composite foundation model is simulated and its decline properties is calculated by the finite-element method. The results show the function of micropile in reducing the decline of the soft foundation. The seismic response is calculated based on static results and the drawn conclusions can be the basis of the design and application of the engineerings.
出处
《扬州大学学报(自然科学版)》
CAS
CSCD
2005年第2期60-64,共5页
Journal of Yangzhou University:Natural Science Edition
基金
江苏省重点实验室--扬州大学水利动力工程实验室开放课题基金资助项目(K99081)
关键词
微群桩基
天然地基
位移
应力
地震响应
<Keyword>micropile composite foundation
crude foundation
displacement
stress
seismic response