Abstract: Based upon the basic principle of hydraulics and the critical submerged theory presented,a critical submerged flow for broad-crested weirs is studied,and the theoretical formula of critical submerged criterion for broad-crested weirs which the results of computation coincide with the present experimental criterion is obtained in this paper.

Key words: broad-crested weirs flow, submerged criterion, critical submerged

摘要： 从水力学基本原理出发,利用笔者提出的临界淹没理论,对宽顶堰淹没流态判别进行探讨,得到了与现行经验判别标准符合良好的宽顶堰淹没标准阀值的理论计算公式,可供堰流理论研究和实际工程设计参用.

关键词: 宽顶堰流, 淹没标准, 临界淹没