一、概述龙羊峡水电站位于青海省黄河上游,是我国目前正在施工的大型水电工程。该工程的河床部分采用混凝土重力拱坝,最大坝高178米,共分18个坝段。右岸11号坝段内布置有底孔泄水道,为水电站高程最低的泄水建筑物,最大泄量1,310米~3/秒。控制泄量的工作弧门设置于水道有压段末端,初期蓄水时可向下游供水 I. Overview Longyangxia Hydropower Station is located in the upper reaches of the Yellow River in Qinghai Province, China is currently under construction of large-scale hydropower projects. The project part of the river bed using concrete gravity arch dam, the maximum height of 178 meters, is divided into 18 sections. The No. 11 dam on the right bank is equipped with a bottom hole drain, which is the lowest-lying drainage structure of the hydropower station with a maximum discharge capacity of 1,310m ~ 3 / s. Control of discharge of the work of the arc door is set at the end of the pressure section of the waterway, the initial impounding water supply to the downstream