面板坝三维有限元模型接触单元的自动生成及应用  

Automatic Generation of Contact Elements for 3-D Finite Element Model of Concrete Facing Rock-fill Dam

作　　者：魏金帅[1] 沈振中[1] 吴凌丞 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [2]黄河万家寨水利枢纽有限公司,山西忻州036412

出　　处：《水电能源科学》2011年第12期67-69,107,共4页Water Resources and Power

基　　金：河海大学水文水资源与水利工程科学国家重点实验室专项基金资助项目(2009586012)

摘　　要：根据面板堆石坝典型的趾板结构布置方式,研究了面板坝趾板建于覆盖层上和基岩上两种情况下接触面和接缝的特点,在控制断面超单元自动剖分法生成不带接触单元的三维有限元模型的基础上,提出了追加接触单元的网格自动生成方法,并编制了相应程序。利用该自动生成程序,建立了某面板坝的三维有限元模型,计算分析了其接触单元的变形量,计算结果符合一般规律。本研究进一步完善了混凝土面板堆石坝三维有限元网格自动生成技术。According to the typical structure arrangement of toe board of the concrete facing rock fill dam, it studies the characteristics of the contact surface and joint under the two circumstances that the toe board established on the over- burden or on the bedrock. On the basis of the 3 D finite element model of control section super unit automatic division method without contact elements, it puts forward the automatic method of creating contact element and programs relevant procedures. The 3-D finite element model of a concrete facing rock-fill dam is established by using the program. And then the deformation of contact element is calculated and the results accord with general rules. This study improves the 3-D fi- nite element mesh automatic generation technology of the concrete facing rock-fill dam.

关 键 词：面板堆石坝 接触单元 接触面单元 接缝单元 自动生成 有限元网格 

分 类 号：TV311[水利工程—水工结构工程]