风化花岗岩开挖弃料配制三峡二期围堰防渗墙材料  

Plastic concrete for cutoff wall using weathered granite sand in stage IIcofferdam of Three Gorges Project

作　　者：李青云[1] 张建红[2] 包承纲[1] 

机构地区：[1]长江科学院空间信息技术应用研究所,湖北武汉430010 [2]清华大学土木水利学院,北京100084

出　　处：《水利学报》2004年第11期114-118,共5页Journal of Hydraulic Engineering

摘　　要：本文介绍了三峡二期围堰防渗墙柔性材料的研制过程。采用三峡坝区开挖弃料-花岗岩风化砂代替塑性混凝土中的砂石骨料,用当地黏土代替膨润土,配制防渗墙柔性材料,通过均匀设计理论和人工神经网络技术相结合的方法对该材料的配合比进行了优选,满足了三峡二期围堰防渗墙的设计要求,该材料已运用于三峡工程二期围堰,效果良好。The weathered granite sand is adopted as the aggregates of plastic concrete for cutoff wall in cofferdam of the Three Gorges Project.The local clay is added into the concrete to make it flexible.The uniform design theory and artificial neural network are applied to optimize the mixing proportion to meet the design requirements.The proposed concrete was successfully used in the Project.

关 键 词：三峡工程 防渗墙 风化花岗岩 塑性混凝土 人工神经网络 配合比优化 

分 类 号：TV223.4[水利工程—水工结构工程]