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一、概述葛洲坝水利枢纽二江电站厂房,是带有排沙底孔的河床式厂房,其下部结构布置有进水口、蜗壳、尾水管和排沙底孔。结构特点是:孔洞在平面上并列,在立面上重叠,形成单跨或三跨、单层或双层、甚至三层的框架结构。框架跨度大,单跨时最大达31.2米(蜗壳进口和尾水管弯管段),三跨时一般
First, an overview Gezhouba Dam IIJiang Power Plant, is a bed with a bottom hole of sand bed-type plant, the lower part of the structure layout of the inlet, volute, draft tube and sediment bottom hole. Structural features are: holes in the plane parallel to the facade, the overlap, forming a single span or three spans, single or double, or even three-tier frame structure. Frame span, single-span up to 31.2 meters (volute inlet and tail pipe bend section), three-span general