保证水垫塘防护结构自身的稳定性是实现消能防冲的关键, 也是保护下游河床而采取的有效措施。当坝体高 度达到或超过300 m 时, 水头高、泄洪功率大, 因而产生的泄洪消能问题十分突出。近年来国内外水垫塘发生破坏 的工程实例屡见不鲜, 如何通过优化底板体型进而有效的改进消力塘底板整体稳定性对于枢纽整体安全至关重要。 结合多个水垫塘模型试验及工程实例, 分析了不同体型底板防护结构的研究内容及其进展, 并提出几种有价值的新 型水垫塘底板型式, 为今后的研究指明了方向。

The stability of pr otectiv e str uctur es o f plung e po ol is the key fo r the energ y dissipat ion and er osion contro l, and also the effectiv e measure to pro tect the dow nst ream riv er bed.When the height of dam body has r eached or ex ceeded 300m, the hig h head and lar ge flood dischar ge pow er can cause the pr ominent pr oblems of flood dischar ge and ener g y dissipation. In recent years, the pro ject ex amples o f br oken plung e po ol a re no t uncommo n. H ow t o optim ize the bottom somato type and then to im2 pro ve the who le stability of plunge po ol effectiv ely is v ery im po rtant t o the w ho le hub safet y. Based on the model tests and pro2 ject ex amples of plung e po ol, the research co ntent and dev elo pment of different somatot ypes of bot tom protective st ructur es wer e analyzed and sever al new somat oty pes of plunge poo l w ere pro posed, w hich can be benef icial fo r the future research.