关键词: 多沙河流, 水库, 泄洪洞, 排沙

Abstract: Concentrated flood discharge and desilting by spillway tunnel plays an important role to prolong the life of reservoir and retain active storage capacity in long-term. Several technical problems should be dealt with in the design of spillway tunnel, such as selection of plane position, inlet elevation, structural style and the type of outlet section.

Key words: sediment-laden river, reservoir, spillway tunnel, desilting