| 马蹄形隧洞断面收缩水深的迭代法计算 |
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| 引用本文： | 刘计良,王正中,赵延风.马蹄形隧洞断面收缩水深的迭代法计算[J].农业工程学报,2010,26(14):167-171. |
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| 作者姓名： | 刘计良 王正中 赵延风 |
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| 作者单位： | 1．西北农林科技大学水工程安全与病害防治研究中心，杨凌 712100；;1．西北农林科技大学水工程安全与病害防治研究中心，杨凌 712100；;1．西北农林科技大学水工程安全与病害防治研究中心，杨凌 712100；1．西北农林科技大学水工程安全与病害防治研究中心，杨凌 712100； |
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| 基金项目： | 国家“863”计划（2002AA62Z3191） |
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| 摘 要： | 为了得到计算马蹄形断面隧洞收缩水深的好方法，该文通过引入恰当的无量纲参数并对马蹄形隧洞收缩断面的能量方程做恰当的数学变换，使各种马蹄形断面收缩水深的计算公式统一化，并推导出计算收缩水深的迭代公式；给出判别收缩水深范围的分界流量，即可计算断面收缩水深。算例表明，该方法简单、准确、通用。
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| 关 键 词： | 隧洞，水力学，迭代法，马蹄形断面，收缩水深 |
| 收稿时间： | 2009/8/30 0:00:00 |
| 修稿时间： | 4/5/2010 12:00:00 AM |
Iterative calculation for contracted depth of horseshoe tunnel cross-section |
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| Liu Jiliang,Wang Zhengzhong and Zhao Yanfeng.Iterative calculation for contracted depth of horseshoe tunnel cross-section[J].Transactions of the Chinese Society of Agricultural Engineering,2010,26(14):167-171. |
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| Authors: | Liu Jiliang Wang Zhengzhong and Zhao Yanfeng |
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| Abstract: | In order to obtain the appropriate formulas for computing contracted depth of horseshoe cross-section tunnel, appropriate dimensionless parameters were introduced and mathematical transformation was made for energy equation for contracted cross-section of horseshoe cross-section tunnel. Then iterative formulas were developed for computing contracted depth for all types of horseshoe cross-sections. Critical discharges were defined and derived to determine the range of contracted depth. Numerical calculation example indicates that the iterative formulas for computing contracted depth are simple and available. |
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| Keywords: | tunnels hydraulics iterative methods horseshoe cross-section contracted depth |
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