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根据库区、隧洞区地形地质条件，引水建筑物布置在右岸，其进水口距坝头约２２０ｍ。考虑到该电站处在强地震区的特点，初设阶段推荐竖井式进水口，技施阶段根据实际开挖的地质情况，对原设计进行了修改，采用了闸门与拦污栅联结成整体的岸塔式进水口方案，保证了进水口边坡的稳定。引水隧洞平面采用折线布置，全长７９８ｍ，分上平段、斜管段、下平段。隧洞开挖后，发现地质情况较复杂，为保证工程质量与安全，对初设阶段的衬砌型式进行了修改，对不同部位分别采取了钢筋混凝土衬砌、钢板素混凝土衬砌、钢板钢筋混凝土衬砌。该工程调压井为阻抗式调压井，压力管道包括埋藏管道段与明管段。
According to the terrain and geological conditions of the reservoir area and tunnel area, the diversion structures are arranged on the right bank and the inlet of the diversion structures is about 220m away from the dam. Taking into account the characteristics of the station in a strong earthquake zone, the shaft inlet is recommended at the initial stage. During the technical phase, the original design was modified according to the geological conditions of the actual excavation. The gate and the trash rack were integrated into a whole Shore tower inlet program to ensure the stability of the inlet slope. Diversion tunnel plane using folding line layout, full-length 798m, points on the flat section, inclined pipe section, the next section. After excavation of the tunnel, it was found that the geological conditions were complicated. In order to ensure the quality and safety of the project, the lining type of the initial stage was modified. Reinforced concrete lining, steel plate concrete lining and steel plate reinforced concrete lining were adopted for different parts respectively. The surge tank for the surge pressure surge wells, pressure pipelines, including buried pipe sections and pipe sections.