群桩—土—承台结构共同作用的数值分析

以层状横向各向同性弹性半空间地基模型并采用有限层子域方法为基础，建立了群桩－土－承台结构在斜向荷载作用下的共同作用的数值分析方法。该分析方法考虑了地基土的成层非均匀性和同层非均匀性以及竖向荷载与水平荷载之间的耦合等因素，并将承台视为厚板组合单元，使分析更接近实际工作状态。算例表明，此方法计算方便、精度较高。

Numerical Analysis of Pile Cap Under the Interaction of Pile-soil

Based on the subdomains of finite layer method,an approach was estabilished for the numerical analysis of pile groups soil pile cap interaction under simultaneous axial and lateral loading.This approach can consider the effect of multi layered,non even in each level soil and the interaction between axial and lateral loading.Meanwhile,pile cap was analysed as elements of combined thick plate,which makes thnanalysis closer to the practice.The results obtained by this approach evince it's accuracy and convenience.