厄瓜多尔CCS水电站的设计关键技术综述

厄瓜多尔CCS水电站是该国最大的水电站,位于热带雨林地区,受火山地震影响较大。针对泥沙多、地震烈度高、覆盖层深、输水距离长、水头高等复杂自然条件,通过开拓性的设计研究,成功解决了修建特大规模沉砂池、超深覆盖层上的大型建筑物、火山灰中的大洞室、24. 8 km长深埋隧洞、618 m水头的压力管道、大跨度地下厂房洞室群、高水头大容量冲击式水轮机组等遇到的关键技术问题。创新的设计为工程顺利施工创造了条件,保障了工程安全可靠运行,也为水利水电工程建设开辟了新路径。

Summary of key technologies in design of Ecuador Coca Codo Sinclair Hydropower Station

The Coca Codo Sinclair Hydropower Station in Ecuador, located in the tropical rain forest area, adjacent to an active volcano, is the largest hydropower station in the country. Considering the complex natural conditions such as heavy sediment load, high seismic intensity, deep overburden, and long water transfer distance and high water head, key technical problems was successfully solved through pioneering design and research, such as: the construction of large-scale sedimentation basin, large structures on ultra-deep overburden, large caverns in volcanic ash, 24.8 km long deep-buried tunnel, penstocks with 618 m water head, large-span underground powerhouse caverns, high-head large-capacity impulse turbines. The innovative design created good conditions for the smooth construction of the project, guaranteed a safe and reliable operation of the project, and opened up new paths for the construction of water conservancy and hydropower projects.