摘要
东津水电站引水系统工程地质条件复杂，施工干扰大，安全渡汛难，工期紧。引水隧洞洞身段采用新奥法施工，先打通上导洞，进口前４０ｍ分段开挖，分段衬砌，进水塔压扳采用２７榀门字钢架支承模板，塔身应用悬胃桁架式组合模板浇筑砼。汛期利用永久闸门挡水渡汛等方案和措施，从而排除了施工干扰，确保了引水系统工程安全渡汛和安全施工，莫定了东津水电站提前蓄水发电的基础，同时取得较好的经济效益和社会效益。
he complication of geological condition.heavy construction interfere- nce. difficulty of safety passing flood water and short of construction period ofdiversion system project of Dongjin hydro-power station. The NATM had beenused for tunnel construction. First. excavated the top heading.sec tion excavatingand section lining were done in which about forty metres to intake.The press- plate of intake tower used 27 pin M-type steel truss to support the form.The concrete placement of tower body took the combination form of cantilever truss. During the flood period. storage water adopted the permanent gate as flood prot- ection measures. Therefore eliminated the interference of construetion. assuredthe diversion system project security of construction in flood season. provided asound basis for storaging water and powering of Doingiin power station. at thesame time got the better economic and social benefits.
出处
《江西水利科技》
1995年第2期98-102,共5页
Jiangxi Hydraulic Science & Technology
关键词
水电站
引水隧洞
工程施工
开挖
初砌
渡汛
Deversion system. Excavate. Safety passing flood water.Form of canti-lever.Donjin hydro-power station
