| 水工有压隧洞出口段体型与压力变化关系的理论分析 |
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| 引用本文： | 童海鸿,艾克明,胡旭跃,丁新求.水工有压隧洞出口段体型与压力变化关系的理论分析[J].长江科学院院报,2006,23(1):5-8. |
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| 作者姓名： | 童海鸿 艾克明 胡旭跃 丁新求 |
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| 作者单位： | 长沙理工大学,河海工程学院,长沙,410076;湖南省水利水电勘测设计总院,长沙,410007 |
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| 摘 要： | 水工有压隧洞的压力计算是一个在设计中必须解决 的水力学问题。从有压恒定流的伯诺里方程出发，对有压隧洞出口段的压力变化规律进行了理论分析，提出了理论计算式，并以工程中常见的几种出口型式为例，具体分析了其压力性质。
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| 关 键 词： | 压力洞 出口段 压坡线 负压 |
| 文章编号： | 1001-5485（2006）01-0005-04 |
| 收稿时间： | 2005-03-07 |
| 修稿时间： | 2005年3月7日 |
Theoretical Analysis on Relation Between Configuration and Pressure Changes of Outlet of Pressure Tunnel |
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| TONG Hai-hong,AI Ke-ming,HU Xu-yue,DING Xin-qiu.Theoretical Analysis on Relation Between Configuration and Pressure Changes of Outlet of Pressure Tunnel[J].Journal of Yangtze River Scientific Research Institute,2006,23(1):5-8. |
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| Authors: | TONG Hai-hong AI Ke-ming HU Xu-yue DING Xin-qiu |
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| Affiliation: | 1. River and Ocean Engineering College of Changsha University of Science and Technology, Changsha 410076, China;2. Hunan Water Resources and Hydropower Survey and Design Institute, Changsha 410007, China |
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| Abstract: | The hydraulic calculation of pressure tunnel is a hydraulics issue needed to be solved in design.From Bernoulli's Energy equation of steady uniform pressure flow,this paper theoretically analyzes the laws of pressure changes of outlet of pressure tunnel and gives some computation formulas of theory.In combination with several forms of outlet that frequently used in practical projects,this paper analyzes the characteristics of pressure specifically. |
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| Keywords: | pressure tunnel outlet hydraulic grade line negative pressure |
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