面板堆石坝中接触面及面板动力特性研究  

Research on Contact Surface and Dynamic Characteristics of Panel in Facing Rockfill Dam

作　　者：董景刚[1] 朱殿英[1] 程玲[2] 

机构地区：[1]中水东北勘测设计研究有限责任公司,吉林长春130021 [2]大连理工大学结构工程研究所,辽宁大连116024

出　　处：《水电能源科学》2011年第9期93-96,共4页Water Resources and Power

基　　金：中央高校基本科研业务费专项基金资助项目(Dut11ZD110)

摘　　要：针对垫层与面板间接触单元刚度的选取和垫层厚度对面板应力的影响大小尚无统一的认识问题,通过数值模拟试验确定了接触面模型参数的合理取值范围,研究了不同垫层厚度对面板动力特性的影响。结果表明,面板的变形主要由堆石体的变形引起,改变垫层厚度对面板的变形影响不大,但对面板的拉压应力幅值及分布情况影响较大,面板的拉压应力幅值及分布情况随垫层厚度的增加而得到较好的改善。Aiming at the problem of choice of contact element stiffness between cushion and face plate and the influence of cushion thickness on face plate stress,the reasonable value range of the parameters of contact face model are obtained with numerical simulation experiments.And then the impacts of different cushion thickness on dynamic characteristics of face plate are studied.The results show that the deformation of face plate mainly is caused by deformation of rockfill body;change of cushion thickness has little impact on deformation of face plate while it has large impact on amplitude and distribution of tensile compressive stress;the amplitude and distribution of tensile compressive stress are improved with increasing cushion thickness.

关 键 词：面板堆石坝 接触面 动力特性 单元刚度 垫层厚度 

分 类 号：TV641.43[水利工程—水利水电工程]