乌东德水电站施工分初期导流、中期导流和后期导流。初期导流采用隧洞泄流、土石围堰全年挡水导流方式；中、后期采用导流隧洞、坝体中孔、表孔和泄洪洞联合泄流，坝体临时断面全年挡水导流方式。受地质条件影响，两岸导流洞靠山侧布置，导致洞线长、规模大，且由于洪峰来量大，导流洞断面也较大。简要介绍了乌东德水电站导流规划和导流建筑物布置、导流标准、导流程序及导流建筑物设计等，可供类似具有复杂导流条件的水电站施工参考。%The construction diversion of Wudongde Hydropower Station is designed as preliminary diversion, medium-stage diversion and later-stage diversion. Tunnel discharge and water retaining by earth cofferdam are adopted in preliminary diver-sion, while in medium and later stage diversion, joint flow discharge solution with diversion tunnels, spillway tunnels and middle and surface outlets are adopted, as well as using temporary dam blocks for whole year water retaining. Restricted by geological and terrain condition as well as high flood volume, the spillway tunnels with long length and large section area are arranged in in-ner part of the bank mountains. The diversion structures layout, diversion standard, diversion procedure as well as diversion structure design are presented in detail.
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