云南水力发电2023，Vol.39Issue(12)：155-160,6.DOI:10.3969/j.issn.1006-3951.2023.12.033
溢流面板坝坝体变形抑制施工技术研究
Research on Construction Technology for Dam BodyDeformation Suppression of Overflow Panel Dam
摘要
Abstract
At present,there is no complete design and construction method for overflow panel dams in China.The most unfavorable influencing factor for spillway built on rockfill is that the rockfill on a soft foundation has the characteristics of settlement and deformation.A large amount of data indicates that the majority of the settlement of compacted rockfill is completed during the construction period.The proportion of settlement during the water storage period to the height of the dam is less than 0.13%,and the settlement during the water storage period only accounts for 12%of the settlement.As long as reasonable technical measures are taken to adapt to foundation deformation,it is feasible to arrange spillway on the downstream slope of the rockfill dam.The slope of the spillway channel inside the dam is generally steep,and it is mostly built on manually filled rockfill bodies made of loose media.It undergoes the action of high-speed water flow during the discharge period,and the water flow characteristics on the spillway are very complex.Through project practice,this paper summarizes the comprehensive construction techniques adopted for dam foundation treatment and filling to reduce the deformation of rockfill during construction and operation periods.关键词
溢流面板坝/坝体变形抑制/施工技术Key words
overflow panel dam/dam deformation suppression/construction technology分类
建筑与水利引用本文复制引用
成小东,张丽英,周斌,夏有能,齐恩会..溢流面板坝坝体变形抑制施工技术研究[J].云南水力发电,2023,39(12):155-160,6.基金项目
云南省教育厅科学研究基金项目(2023J1976、2023J1974) （2023J1976、2023J1974）
