水资源与水工程学报Issue(5)：237-240,4.DOI:10.11705/j.issn.1672-643X.2014.05.052
非标准马蹄形断面隧洞的水力计算研究
Study on hydraulic calculation of non standard horseshoe section tunnel
摘要
Abstract
Horseshoe cross section is commonly used for open-channel flow tunnel, but the section make hydraulic calculation become difficult because of its complex.The paper gave the formulas of hydraulic elements for 6 cambered horseshoe sections through mathematical deduction.It used Chezy formula and critical flow equation to deduce the iterative formula of corresponding central angle of top arch and upper arch, then gave the calculation formula of normal depth and critical depth.The method is applied to cal-culate water surface profile in Qinling tunnel of Hanjiang-to-Weihe water project.The result shows that the morphology of water surface profile meet the qualitative analysis results.The calculation process is simple and reliable and can provide reference for the hydraulic calculation of other project.关键词
水力要素/正常水深/临界水深/马蹄形断面/水面线Key words
hydraulic element/normal depth/critical depth/horseshoe cross section/water surface pro-file分类
建筑与水利引用本文复制引用
魏炳乾,庞洁,严培,刘枫彬..非标准马蹄形断面隧洞的水力计算研究[J].水资源与水工程学报,2014,(5):237-240,4.基金项目
陕西省教育厅科学研究计划项目 （）
