考虑固结和流变的群桩的积分方程解法  

The integral equation method to solve pile group problem considering the consolidation and rheology of soil

作　　者：陆建飞[1] 王建华[1] 沈为平[1] 

机构地区：[1]上海交通大学建筑工程与力学学院,上海200030

出　　处：《岩土工程学报》2000年第6期650-653,共4页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金资助项目 !(598790 1 2 );国家教委博士点基金资助项目! (980 2 4 832 )

摘　　要：利用半空间内部和表面作用圆形载荷时的Biot固结基本解 ,得出了粘弹性饱和土中群桩在时间域内的第二类Fredholm积分方程。通过Laplace变换方法对上述积分方程进行简化 ,对所得的积分方程进行数值求解并进行相应的逆变换即可得群桩的轴力。By using the fundamental solutions of circular load applied in the interior of the half space or on the surface of the half space, the second kinds of Fredholm integral equations of pile group in saturated viscoelastic soil are established in the paper. The integral equations can be simplified by means of Laplace transforms methods. By the the numerical solution of the integral equations and the corresponding inverse integral transforms, the displacement, axial force and the shear stress of the piles groups are obtained.

关 键 词：固结 流变 群桩 积分方程 积分变换 

分 类 号：TU473.1[建筑科学—结构工程] TU473.12[建筑科学—土工工程]