干旱地区农业研究2017，Vol.35Issue(2)：191-194,4.DOI:10.7606/j.issn.1000-7601.2017.02.31
蛋形断面的正常水深和临界水深的直接计算公式
The explicit calculation formula of normal and critical water depth for egg-shaped section
卞晓卫 1郑新桥 2代述兵 3简跃 4马玉蕾3
作者信息
- 1. 中国电建集团贵阳勘测设计研究院,贵州贵阳550081
- 2. 中国水电建设集团十五工程局有限公司,陕西西安710068
- 3. 大连理工大学建设工程学部,辽宁大连116024
- 4. 云南建工水利水电建设有限公司,云南昆明650000
- 折叠
摘要
Abstract
The calculating formulas of normal and critical water depth for egg-shaped section are sectional transcendental equations,which can't be solved directly.In this article,the normal and critical depth formula is simplified by mathematical deformation,and then the relation of filling degree x with nondimensional normal water depth H and nondimensional critical depth P is gotten.The 1 stopt software is adopted to optimize and fit the established nonlinear model parameters based on genetic algorithm and set up the explicit calculation formula of normal and critical water depth for egg -shaped section.The error analysis and example calculation show that,within the large range of common project application,the largest relative errors of normal and critical water depth for egg-shaped section are just 0.3691％ and -0.0726 ％,relatively.Compared with the existing formulas,the explicit formula is characterized by a larger application range,a higher precision and a more convenient calculation.The proposod formula will provide a theoretical basis and useful reference for project design,operation and management.关键词
蛋形断面/正常水深/临界水深/1stopt软件/显示计算公式Key words
egg-shaped section/normal water depth/critical water depth/1stopt software/explicit calculation formula分类
建筑与水利引用本文复制引用
卞晓卫,郑新桥,代述兵,简跃,马玉蕾..蛋形断面的正常水深和临界水深的直接计算公式[J].干旱地区农业研究,2017,35(2):191-194,4.
