摘要
乌东德水电站泄洪消能建筑物规模大、布置难度高,挖除覆盖层后坝址消能区天然水垫深厚。针对上述特点,对该电站泄洪消能方案进行了比较和研究,选用坝身表、中孔与岸边泄洪洞联合泄洪的方案,坝身布置5个表孔、6个中孔,坝下设置"护岸不护底"水垫塘消能。水垫塘末端设立混凝土重力式二道坝,左岸靠山侧布置3条泄洪洞,并采用封闭抽排水垫塘消能。水工模型试验表明,该方案合理可行,安全可靠。
Wudongde Hydropower Station is characterized as large scaled flood discharge and energy dissipation structure, dif- ficult structure layout. After the excavation of the overburden, the natural water cushion in the energy dissipation zone was thick. Multiple schemes of flood discharge and energy dissipation were compared and studied by consideration of the above features. The combined flood discharge scheme using surface outlet, middle outlet at dam body and spillway tunnel at bank was determined. 5 surface outlets and 6 middle outlets are arranged on the dam body, and the plunge pool with bank protected but without bed pro- tected is at downstream of the dam. The concrete gravity subsidiary dam was designed at the end of the plunge pool. 3 spillway tunnels were arranged at left bank near the mountain side and the closed pumping and drainage was adopted. The hydraulic model test showed that the scheme is feasible, safe and reliable.
出处
《人民长江》
北大核心
2014年第20期21-23,共3页
Yangtze River
关键词
泄洪消能
水垫塘
泄洪洞
乌东德水电站
flood discharge and energy dissipation
plunge pool
spillway tunnel
Wudongde Hydropower Station
