横观各向同性地基上的碾压混凝土重力坝应力应变研究  

Stress-strain study of RCC gravity dam on transverse isotropic foundation

作　　者：苏超[1] 董安雨 刘崇巍 何志亮[1] 徐汇[1] SU Chao;DONG An-yu;LIU Chong-wei;HE Zhi-liang;XU Hui(College of Hydrology and Water Resources , Hohai University , Nanjing 210098, China;XinCheng Cost Firm, Bengbu 233000, China)

机构地区：[1]河海大学水利水电学院,南京210098 [2]鑫城造价事务所,安徽蚌埠233000

出　　处：《南水北调与水利科技》2017年第4期155-160,共6页South-to-North Water Transfers and Water Science & Technology

基　　金：国家自然科学基金项目(51279053)~~

摘　　要：碾压混凝土重力坝结构简单,施工方便,应用广泛。在实际工程中,经常会遇到地基的各向异性问题。应用非线性有限元结构分析软件ABAQUS,以某碾压混凝土重力坝的岸坡坝块为研究对象,建立了碾压重力坝的三维有限元计算模型。在正常蓄水工况下设置了六组水平向与铅直向弹性模量比值不同的计算组,通过对比分析,研究其可不考虑各向异性的材料比值区间。RCC gravity dam has a simple structure,can be const ructed conveniently,and is widely used nowadays.In practical engineering,foundation anisotropy problems are often encountered.In this paper,we used the finite element analysis software ABAQUS,took the slope dam blocks of a roller compacted concrete gravity damas the basic computational structure,and established a3D finite element calculat ion model of RCC gravity dam.Under the normal storage condition,six different calculatio ngr oups w ere set that have different ratios of horizontal to vertical elastic modulus.Through comparative analysis,we studied thematerial ratiorange within which anisotropy needs not to be considered.

关 键 词：岸坡坝段 三维有限元 横观各向同性地基 应力应变 弹性模量 

分 类 号：TV642[水利工程—水利水电工程]