Hydraulic Investigation of Piano Key Weir
Hydraulic Investigation of Piano Key Weir
复制标题
DOI：
10.7831/ras.8.0_310
复制
发表时间：
2020
影响因子：
--
通讯作者：
L. Tuan;K. Hiramatsu
中科院分区：
文献类型：
--
作者：
L. Tuan;K. Hiramatsu
钢琴键堰是一个改进的迷宫堰，使用悬臂向上和下游悬挑，以限制其基本长度。钢琴键堰的基础占地面积小，可以更容易地放置在现有水坝的顶部，如混凝土重力坝和拱坝。最近的研究表明，在确定水头和坝体结构占用的固定宽度下，这种新型堰的泄流能力是传统堰的四倍以上。然而，由于其几何复杂性，到目前为止，还没有一种经验方法可以考虑所有已发表的实验数据。本文的目的是总结前几篇文章中关于钢琴键堰液压的最相关信息，以便更好地理解这种创新堰类型的运作方式以及未来值得进一步研究的研究方向。
Piano Key weir is a modified labyrinth weir that uses cantilevered up- and downstream overhangs in order to restrict its basis length. The small footprint on foundation of Piano Key weirs allows an easier placement on the crest of the existing dams such as concrete gravity dams and arch dams. The recent studies have shown that this new type of weir can provide more than four times as much discharge capacity as a traditional ogee-crested weir can at a defined hydraulic head and a constant width occupied by the structure on the dam. However, until now, there is not yet an empirical method that considered all of the published experimental data due to its geometric complexity. The aim of this present paper is to summarize the most pertinent information on Piano Key weir hydraulics in the preceding articles in order to provide a better understanding of how this innovative weir type operates and what the future researches which warrant further investigation are.