利用Hashin模型求解复合模量  

Composite Module Calculation by Hashin Model

作　　者：王凤池[1] 赵松涛[1] 

机构地区：[1]沈阳建筑大学土木工程学院,沈阳110168

出　　处：《地下空间与工程学报》2009年第1期35-38,共4页Chinese Journal of Underground Space and Engineering

基　　金：辽宁省自然科学(博士启动)基金项目(20061001);建设部科技计划项目(06-K1-6)

摘　　要：为了研究增强体在等腰三角形布置时的复合模量计算方法,利用复合材料力学Hashin模型,将桩间土分成周围的加强环部分和空隙,相邻的桩间土加强环相切。取出一个六角形横截面的横观各向同性的直棱柱体来代表复合地基的计算模型。利用应变能原理和余能原理分析得到复合地基的宏观弹性系数,导出了复合模量的理论计算公式。算例及分析表明,利用Hashin模型求解的复合模量大于面积比公式。In order to study the calculating method of composite module when the reinforeement bodies were laid in conformity to equilateral triangle, the Hashin model, as a famous model in composite materials mechanics, was used. The inter-pile soils were divided into two parts namely enhanced rings and interspaees. The adjoining enhanced rings intersect tangentially. A transverse isotropic hexagonal section prism can represent the calculating model of composite foundation. The macroscopic elasticity coeffieients of composite foundation were obtained by using strain energy prineiple and residue energy principle. And the theoretical formula of composite module calculation was deduced. Example and analysis indieate that the composite module calculated by Hashin model is bigger than that by area ratio formula.

关 键 词：复合地基 Hashin模型 复合模量 沉降 

分 类 号：TU473[建筑科学—结构工程]