局部分层法在碾压混凝土坝应力分析中的应用

Application of Partial Stratified Method in Stress Analysis of RCC Dam

由于碾压混凝土成层结构特性,使得碾压混凝土坝内存在薄弱的层间面,对此针对有限元分析常用的分层法、等效法进行了对比分析,并结合二者的优点提出了局部分层法。以某碾压混凝土重力坝为例,分别建立了分层法、等效法、局部分层法有限元模型,并对其进行了计算分析。结果表明局部分层法能够有效结合分层法以及等效法优势,能够较为准确地分析碾压混凝土坝应力。

There is a weak interlayer in roller compacted concrete（RRC） dam because of its layered structure.For this purpose, stratified method and equivalent method used in finite element analysis were compared, and partial stratified method was proposed combining their advantages.Taking a RCC gravity dam as an example, this paper built the finite element models by stratified method , equivalent method and partial stratified method, respectively. It calculated and analyzed the results, which showed the partial stratified method could effectively combine the advantages between stratified method and equivalent method.That could accurately analyze the stress of RCC dam.