黄登水电站坝基渗流特性研究及实践  

Research and Practice on Seepage Characteristics of Dam Foundation in Huangdeng Hydropower Station

作　　者：字林 洪建辉 李浪 ZI Lin;HONG Jian-hui;LI Lang(Huaneng Lancang River Hydropower Inc.,Kunming 650206,China)

机构地区：[1]华能澜沧江水电股份有限公司,云南昆明650206

出　　处：《云南水力发电》2021年第11期74-80,共7页Yunnan Water Power

摘　　要：黄登水电站为200m级高碾压混凝土重力坝,如何减少坝基渗漏量,降低坝基的扬压力,增强坝基的抗滑稳定性,是大坝设计的关键技术问题之一。采用三维有限单元法,对坝基渗流场进行分析计算,模拟渗控措施,研究了坝基的主要渗流特性和渗控措施的作用。分析结果验证了渗控设计方案的重要性,并依此进行了黄登水电站坝基防渗帷幕、排水设计方案的设计,监测结果表明该设计方案能满足大坝渗控需求。Huangdeng Hydropower Station is a 200m high RCC gravity dam.How to reduce leakage of dam foundation,reduce uplift pressure of dam foundation and enhance anti-sliding stability of dam foundation is a key technical issue in dam design.Three-dimensional finite element method is used to analyze and calculate seepage field of dam foundation,simulate seepage control measures and study main seepage characteristics of dam foundation and the effect of seepage control measures.The analysis results validate the importance of seepage control design scheme,and the design scheme of anti-seepage curtain and drainage for dam foundation of Huangdeng Hydropower Station is carried out accordingly.The monitoring results show that the design scheme can meet the requirements of dam seepage control.

关 键 词：碾压混凝土重力坝 坝基 渗控设计 三维渗流场 渗流特性 

分 类 号：TV223.6[水利工程—水工结构工程]