摘要
Abstract
The lower reservoir dam of Guangdong Yangjiang Pumped storage power station is an asphalt concrete core rockfill dam,with a maximum height of 55.9m,which is built on the deep and uneven overlayer.The riverbed of the dam foundation of the lower reservoir is flood alluvial sand pebble layer as the foundation surface,and the foundation surface of the dam shoulder and anti-seepage core wall on both sides is fully weathering zone.The seepage control of the dam foundation is concrete anti-seepage wall and curtain grouting.This paper briefly introduces the reservoir dam foundation treatment design,in the construction technology from the dam excavation treatment,concrete impervious wall,curtain grouting construction and dam foundation seepage control effect briefly,analyzes the covering dam foundation concrete impervious wall construction of the main technical difficulties and control key,for reference for similar engineering.关键词
堆石坝/覆盖层/坝基防渗/混凝土防渗墙/帷幕灌浆Key words
rockfill dam/overburden/dam foundation concrete/seepage prevention wall/curtain grouting分类
建筑与水利
