orifice-plate ring

The measures include the construction of a head-rise structure to raise the elevation of the inlets, backfilling and blocking of part of the diversion tunnels in the range of the foundation of intake towers, arrangement of orifice-plate rings between the head-rise structure and middle lock.

介绍小浪底水利枢纽工程在大坝施工期间的 3条导流洞在完成导流任务后 ,通过以龙抬头的形式抬高进水口高程 ,回填封堵导流洞在进水塔基础范围内的部分 ,在龙抬头和中闸室之间设置孔板环以及缩小中闸室过流断面等施工方法 ,有效地解决了导流洞重复利用所遇到的高水头、高流速问题 。

Design of perforated ring plate for inverted cone water tower of precast reinforced concrete construction;

预制钢筋混凝土倒锥壳水塔多开孔环板的设计