论文部分内容阅读
龚嘴水电站导流明渠,担负着河床基坑施工期间河水宣泄和木材漂送任务,全长680米。底宽自进口段的64米渐变至出口段的35米,边墙一般高20米,最大高度为30米,原设计预定通过校核流量10600米~3/秒,相应单宽流量298米~3/秒。渠内一般水深20米左右,平均流速约19米/秒。是目前国内水利水电工程中规模最大的导流明渠(见附图)。该明渠于1966年3月开工,1967年2月建成过水,1971年3月明渠进口封堵完建,共安全运行了四年。运行期间,实际宣泄最大洪水流量5680米~3/秒,单宽流量100米~3/秒;平均每年木材输送过坝量达100万米~3以上,高峰漂木密度633件/分,为国内工程所
Gongzui Hydropower Station diversion channel, responsible for riverbed pit during the construction of river catharsis and drifting mission, a total length of 680 meters. The bottom width of 64 meters from the entrance to the exit gradient of 35 meters, the wall is generally 20 meters high, the maximum height of 30 meters, the original design is scheduled to pass the check flow 10600 m ~ 3 / s, the corresponding single-wide flow of 298 meters ~ 3 seconds. Drainage depth of about 20 meters, with an average flow rate of about 19 m / s. It is the largest diversion channel in China’s domestic water conservancy and hydropower projects (see attached map). The open channel was started in March 1966, and was completed in February 1967. In 1971, the import of open channels was sealed and closed for a total of four years. During the operation period, the maximum actual flood discharge was 5680m ~ 3 / s and the single-wide flow was 100m ~ 3 / s. The annual average annual delivery of timber reached 1 million m ~ 3 and the density of peak drifting wood was 633 pieces / Domestic Engineering Institute