深基坑动态施工中的变形及内力预报  

Deformation and internal force prediction of Deep foundation dynamic construction

作　　者：文行武[1] 

机构地区：[1]福建省建筑科学研究院,福州350025

出　　处：《福建建设科技》2010年第4期12-14,11,共4页Fujian Construction Science & Technology

摘　　要：本文根据深基坑动态施工及分布开挖特点,用杆系有限元模拟分析基坑分步开挖及支护结构设计计算过程,分析各节点(每米)土体两侧土压力分布,并预报各施工阶段土体变形,内力及支撑轴力。According to the dynamic construction of deep foundation pit excavation and the characteristics of multistep,finite element analysis is applied to simulate the multistep foundation excavation and support structure design and calculation process,each node（per meter） of soil on both sides of the earth pressure is analyzed,the construction phase of soil deformation,internal force and axial support force are predicted.

关 键 词：卸荷模量 杆系有限元 地基弹簧系数 

分 类 号：TU473.2[建筑科学—结构工程]