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龙羊峡水电站枢纽建筑物由拦河坝、电站厂房及泄水建筑物等组成。主坝为混凝土重力拱坝,混凝土量156.71万立米。最大坝高178米,底宽80米。主坝前沿长396米,共分18个坝段。各坝段间除个别横缝外,均沿半径方向设置施工缝。为适应混凝土温控要求和浇筑能力,同时考虑到施工进度要求,简便施工,设置了三条纵缝。待坝体混凝土温度降至稳定温度,需对纵横缝进行灌浆,将坝体联成整体。 坝段上游面弧长一般为24米,河床部位有四个坝段的坝体内埋设有压力引水钢管,直径7.5米。左右两岸设有重力墩。右重力墩以右设有三孔开敞式溢洪道。 第7～10坝段通过厂坝连接段,后接发电厂房,总装机容量128万瓩。单机容量32万瓩。 泄水建筑物分四层布置,计有底孔、深孔、中孔和溢洪道。
Longyangxia Hydropower Station hub building by the barrage, power plant and drainage structures and other components. The main dam is a concrete gravity arch dam with 1,567,100 cubic meters of concrete. The maximum height of 178 meters, 80 meters wide bottom. The main dam front length of 396 meters, is divided into 18 dam sections. Except individual transverse joints, the construction joints shall be set along the radial direction. To meet the concrete temperature control requirements and pouring capacity, taking into account the construction schedule requirements, easy construction, set up three longitudinal seam. To be dam concrete temperature dropped to a stable temperature, vertical and horizontal joints to be grouted, the dam together into the whole. The upstream surface arc length of the dam section is generally 24 meters. There are pressure diversion pipes buried in the dam body with four dam sections in the riverbed section, with a diameter of 7.5 meters. Left and right with a gravity pier. The right gravity pier has a three-hole open spillway to the right. The 7 ~ 10 dam through the dam connecting section, followed by power plant, with a total installed capacity of 1280000 瓩. Stand-alone capacity of 320,000 瓩. Drainage building is divided into four layers, with bottom hole, deep hole, middle hole and spillway.