水利水电科技进展2024,Vol.44Issue(1):73-78,94,7.DOI:10.3880/j.issn.1006-7647.2024.01.011
复合过水围堰高效填筑技术
A high-efficiency filling technology for composite overflow cofferdam
摘要
Abstract
In order to solve the problems of short construction period,large engineering quantity and high construction requirements of the upstream cofferdam for the Julius Nyerere Hydropower Station in Africa after the river closure,a high-efficiency filling technology for composite cofferdam is proposed.Five efficient filling construction processes and key technologies have been focused,including bottom water-rushing concrete pouring,rockfill concrete pouring on the left bank,downstream prefabricated block formwork construction,upstream clay impermeable layer leveling construction,and main cementitious sand and gravel metamorphosis rolling construction.Engineering practice shows that the new high-efficiency filling technology for composite cofferdam can greatly optimize the construction organization and efficiency,and finally completes the safe,efficient and high-quality construction of the cofferdam before the flood season arrives.关键词
复合过水围堰/胶凝砂砾石/高效填筑/施工技术/朱利叶斯·尼雷尔水电站Key words
composite overflow cofferdam/cementitious sand and gravel/high-efficiency filling/construction technologies/Julius Nyerere Hydropower Station分类
建筑与水利引用本文复制引用
张睿,李子昌,曹丰泽,聂宇辛,杜立兵,林鹏,杨社亚,潘新波,娄威立..复合过水围堰高效填筑技术[J].水利水电科技进展,2024,44(1):73-78,94,7.基金项目
国家自然科学基金项目(51979146) (51979146)
中国水电坦桑尼亚Julius Nyerere水电站施工关键技术研究科技成果咨询服务资助项目(SHC-JNHPP-JSFW-01-18012022) (SHC-JNHPP-JSFW-01-18012022)
下凯富峡水电站施工关键技术研究科技成果咨询服务资助项目(SH-KGL-SUB-2021003) (SH-KGL-SUB-2021003)