摘要
滩坑水电站工程施工导流采用一次围堰断流、隧洞导流的方式,上下游围堰均采用土石过水围堰型式,为进一步掌握施工导流各阶段的水流条件,确保围堰和坝体度汛安全,进行了过水围堰导流模型试验研究.通过模型试验,测试了导流隧洞和过水围堰的泄洪能力,测试了围堰、大坝过水流速、流态和导流隧洞的水流流态,验证了堰体和坝体过流保护措施.根据模型试验成果,进一步优化了围堰结构布置和上游围堰堰面保护措施,为工程导截流设计与施工组织提供了重要的指导作用.
The Tankeng Hydropower Station takes the single cofferdam with tunnel diversion as the diversion mode. Upstream and downstream cofferdams are overflow earth-rock cofferdam type. In order to further understand the flow conditions of various stages during construction diversion, ensure safety of cofferdam and dam during flood season, the overflow cofferdam diversion model experimental research has been conducted. Through the model test, the discharge capacity of diversion tunnel and the cofferdam have been tested; the flow velocities and flow patterns through the cofferdam, the dam and the diversion tunnel have been tested; the protecting measures of cofferdam and dam have been verified. According to the experimental rusults, further optimizing the structure of the cofferdam arrangement and the protective measures of upstream cofferdam have been made so as to provide guidance for construction deversion, river closure design and construction organization planning.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2009年第6期769-772,775,共5页
Engineering Journal of Wuhan University
关键词
滩坑水电站
过水围堰
度汛
模型试验
Tankeng Hydropower Station
overflow cofferdam
flood protecting during construction
model test
