大型整体式贮煤筒仓基础有限元分析  

Finite element analysis of huge coal silo foundation

作　　者：汪碧飞[1] 陈明祥[1] 汤正俊[1] 袁子厚[2] 

机构地区：[1]武汉大学土木建筑工程学院,武汉430072 [2]武汉科技学院理学院,武汉430073

出　　处：《岩土力学》2010年第6期1983-1988,共6页Rock and Soil Mechanics

摘　　要：采用有限元分析了不同土体的弹性本构关系和不同堆煤荷载施加方式对筒仓基础的影响;在此基础上分析了煤压力、桩土之间的接触压力、桩的内力与变形、土体沉降等变化规律。从计算结果可知,考虑土体的弹性模量随土层的压实而提高,并考虑煤与筒仓、基础土体之间的相互作用,使得筒仓基础的受力状态与实际情况更接近,从而得到优化的筒仓基础设计。Finite element method is employed to study the influence on silo foundation including different constitutive relations of elastic part of soil and the different ways of applying coal load. Based on this,the variations in following aspects are analyzed：coal pressure,contact pressure of pile-soil,internal force and deformation of pile and settlement of subsoil. According to the analysis,we will get the optimal design of silo foundation on the basis of the fact that the elastic modulus of soil improves with soil compaction,and coal,silo and subsoil interacts with each another to ensure the force status of silo foundation more practical.

关 键 词：煤荷载施加方式 多孔弹性 线弹性 弹塑性 有限元分析 

分 类 号：O241[理学—计算数学]