黄登工程坝基渗控设计  

Seepage Control Design of Dam Foundation in Huangdeng Project

作　　者：李文杰 张彩秀 邓良军 陈建安 LI Wen-jie;ZHANG Cai-xiu;DENG Liang-jun;CHEN Jian-an(Power China Kunming Engineering Corporation Limited,Kunming 650051,China;Huaneng Lancang River Hydropower Inc.,Kunming 650214,China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051 [2]华能澜沧江水电股份有限公司,云南昆明650214

出　　处：《云南水力发电》2022年第1期89-92,共4页Yunnan Water Power

摘　　要：统计表明,坝基渗漏是影响大坝安全的一个重要因素,在拦河坝设计时应充分重视坝基渗控方案设计。针对黄登工程拦河坝坝基地质条件,结合工程自身特点,对所采取的上游主防渗帷幕+河床坝段增设上游副帷幕+下游封闭副帷幕的防渗帷幕方案,及坝基范围内4纵7横排水幕+集水井集中抽排的排水方案进行了论述。监测成果表明,坝基扬压力与地下水位分布符合一般规律,坝基渗漏量小,满足设计要求,表明渗控措施设计方案合理可行。Statistics show that dam foundation leakage is an important factor affecting dam safety.Therefore,the design of seepage control scheme of dam foundation should be paid full attention in the design of barrage dam.According to the geological conditions of dam foundation of barrage in Huangdeng Project,the scheme of setting main anti-seepage curtain upstream,additional auxiliary curtain upstream and closed auxiliary curtain downstream is adopted in this paper.The drainage schemes of 4 longitudinal and 7 horizontal drainage curtains and centralized suction and discharge of water collecting wells within the scope of dam foundation are also discussed.Monitoring results show that the distribution of uplift pressure and groundwater level of dam foundation conforms to general law,leakage of dam foundation is small and meets design requirements,which indicates that the design scheme of seepage control measures is reasonable and feasible.

关 键 词：黄登工程 坝基渗控 防渗帷幕 抽排 

分 类 号：TV223.4[水利工程—水工结构工程]