摘要
根据堆石不同于土体的特点 ,从机理上分析了堆石的长期变形特性在室内试验和现场实测结果中的差异 ,指出了对于堆石流变性质的研究 ,目前不宜通过室内试验的方法。为提高实际应用的可行性 ,最好能通过现场实测资料进行反分析以确定堆石的流变性能 ,并以某混凝土面板堆石坝为例 ,引入人工神经网络技术对堆石流变进行了三维有限元基础之上的反分析研究 ,取得了较好的成果。
According to the different properties of rockfill and soil, the differences of the rheology test results of rockfill obtained from lab and site are discussed. It is not available to use lab testing data to study the rheology property of rockfill at present. Instead, the best way to study the rheology property of rockfill is to make back analysis from the deformation obtained in field. Based on three dimensional finite element analysis of a concrete face rockfill dam, the back analysis of rockfill rheology is carried out with neural network, and a good result is obtained.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2000年第4期526-530,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
堆石
流变
流变机理
研究方法
rockfill, rheology, rheology mechanism, study method
