摘要
目前桩基在工程中得到广泛应用,人们逐渐认识到桩筏基础控制的关键是变形而不是强度.结合上海土层情况,运用有限元软件ANSYS建立群桩-土-上部结构三维有限元非线性模型,土体本构模型采用Drucker-Prager弹塑性模型,并利用面-面接触单元考虑土体与桩基交界面的状态非线性,合理地模拟了桩与桩周土间复杂的相互作用,对群桩沉降做了定性分析。
At present, the pile foundation is widely applied to practical engineerings.In the latest years, people recognized the key to control piled raft foundation is settlement, not is intensity.The software ANSYS is used to build a three-dimensional nonlinear model about pile group-soil-raft-upside structure; and formulate the pile-soil complicated interaction considering the contact between the pile and soil based on the Shanghai soil. The settlement behavior is analyzed about the pile group.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2008年第S1期126-129,共4页
Engineering Journal of Wuhan University
关键词
相互作用
接触单元
沉降
差异沉降
interaction
contact elements
settlement
differential settlement
