| 利用分布式光纤定位监测土石坝管涌 |
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| 引用本文： | 刘海波.利用分布式光纤定位监测土石坝管涌[J].科学技术与工程,2010,10(26). |
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| 作者姓名： | 刘海波 |
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| 作者单位： | 1. 昆明理工大学,昆明,650051
2. 云南缘达集团,昆明,650000 |
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| 摘 要： | 基于热传导与热对流原理,结合流体横掠管束传热准则,完善了渗流流速的光纤测读算式,可据此监测大坝的渗水流速、渗水量.借助于坝体内光纤的拉曼散射效应测出温度场,找出坝体温度异常区域,即可用确定土石坝内细微管涌发生的位置.
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| 关 键 词： | 分布式光纤 温度 土石坝 管涌 |
| 收稿时间： | 6/3/2010 6:07:05 PM |
| 修稿时间： | 6/10/2010 8:19:54 PM |
The monitoring of the Earth-rock dam piping leakage by the Distributed optical fiber |
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| Liu haibo.The monitoring of the Earth-rock dam piping leakage by the Distributed optical fiber[J].Science Technology and Engineering,2010,10(26). |
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| Authors: | Liu haibo |
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| Institution: | LIU Hai-bo,YANG Hua-shu,CHEN Gang,CHEN Rui,ZHANG Gui-song,YUAN Xiao-zhu1(Kunming University of Science and Technology,Kunming 650051,P.R.China,Yuda Group of Yunan1,Kunming 690000,P.R.China) |
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| Abstract: | the Distributed optical fiber, temperature, Earth-rock dam, piping leakage
Abstract: Based on the heat conduction and thermal convection theory, combined with the fluid heat transfer criterion, the Formula of Seepage velocity for fiber optic is improved. With fiber optic in the dam to measure the temperature, temperature anomalies of dam area can be found, and the position of small piping leakage can be located. |
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| Keywords: | the Distributed optical fiber temperature Earth-rock dam piping leakage |
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