强夯数值模拟及设计参数研究  

Numerical Simulation of Dynamic Consolidation and Design Parameters Study

作　　者：周世良[1] 郑红娟[1] 吴友仁[2] 张智洪[1] 

机构地区：[1]重庆交通大学河海学院,重庆400074 [2]广州四航工程技术研究院,广东广州510230

出　　处：《港工技术》2008年第1期43-46,共4页Port Engineering Technology

基　　金：重庆市水利水运工程重点实验室开放基金(SLK2006A04);重庆市教委科技项目(040406)资助课题

摘　　要：根据强夯处理高填方时土体存在局部大变形的特点,采用非线性有限元理论,导出弹塑性大变形有限元动力平衡方程,对高填方强夯处理进行数值模拟,得到夯坑形状、土体应力变化及塑性区开展等结果,并依据数值模拟结果对强夯加固的主要设计参数进行初步探讨。Based on the local large deformation in dynamic consolidation for high earth fill, a elasto-plastic large-deformation dynamic balance equation is derived by no-linear finite element theory. Subsequently, the dynamic consolidation process for high earth fill is simulated, and the ramming hole shape, stress history of soil and plastic zone development are obtained, the major design parameters of dynamic consolidation are discussed based on the numerical simulation results.

关 键 词：强夯 弹塑性 大变形 数值模拟 设计参数 

分 类 号：TU472.31[建筑科学—结构工程] O242[建筑科学—土工工程]