基于分布式光纤温度监测系统的集中渗漏通道流速计算模型

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摘要分布式光纤测温系统因其造价低、可实现实时快速分布式测温等优点，在堤坝渗漏监测方面具有良好的应用前景。但由于缺乏必要的理论基础和试验研究，目前分布式光纤测温的应用仅局限于渗漏定性分析，缺乏定量计算研究。根据分布式光纤温度监测系统在不加热和加热两种情况下的温度测量值，利用热平衡理论及坝体周围岩土体温度变化与集中渗漏流速关系建立数学物理模型，在层流和紊流两种不同流态下探讨了渗漏流速的确定方法。经过一个实例计算，验证了所推导公式的正确性，为分布式光纤测温在渗漏监测中的应用，提供了一个定量分析的依据。

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	董海洲
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关键词 ：分布式光纤温度监测系统, 热量平衡, 集中渗漏通道, 渗漏流速

Abstract：The distributed optic fiber temperature sensing system has excellent application prospect in dam leakage monitoring for its advantages such as low cost and quick distributed temperature measurement. However, the deficiency of theoretical and experimental studies limits the use of the system in qualitative analysis and leads to the lack of quantitative calculation. By using the temperature data detected by the system under non-heated and heated conditions respectively, a mathematical physical model is established to describe the relationship between temperature variation of ambient rock-soil and leakage velocity according to the theory of heat transfer balance. The determinate method for the leakage velocity is proposed in accordance with flow regime as turbulent and laminar flows. A case study is provided to prove the validity of the proposed model. The model provides a quantitative analysis approach for the wide use of the distributed optic fiber temperature system in dam leakage monitoring.

Key words： distributed optic fiber temperature sensing system heat transfer balance concentrated leakage passage leakage velocity

收稿日期: 2012-12-04

TU41

基金资助:国家自然科学基金项目（50809024）

作者简介: 董海洲(1976- )，男，河南南阳人，副研究员，从事岩土体渗流研究。E-mail: donghzh@hhu.edu.cn。

引用本文:

董海洲, 寇丁文, 彭虎跃. 基于分布式光纤温度监测系统的集中渗漏通道流速计算模型[J]. 岩土工程学报, 2013, 35(9): 1717-1721. DONG Hai-zhou, KOU Ding-wen, PENG Hu-yue. Computational model for dam leakage velocity in concentrated passage based on distributed optic fiber temperature sensing system. Chinese J. Geot. Eng., 2013, 35(9): 1717-1721.

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http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/ 或 http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/Y2013/V35/I9/1717

[1] 王新建, 潘纪顺. 堤坝多集中渗漏通道位置温度探测研究[J]. 岩土工程学报, 2010, 32(11): 1800-1805. (WANG Xin-jian，PAN Ji-shun. Location detection of concentrated -leakage passages in dam by groundwater temperature[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(11): 1800-1805. (in Chinese))
[2] 刘海波, 杨华舒, 陈刚, 等. 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): 6463-6467. (LIU Hai-bo, YANG Hua-shu, CHEN Gang, et al. The monitoring of the earth-rock dam piping leakage by the distributed optical fiber[J]. Science Technology and Engineering, 2010, 10(26): 6463-6467. (in Chinese))
[3] 肖衡林, 鲍华, 王翠英, 等. 基于分布式光纤传感技术的渗流监测理论研究[J]. 岩土力学, 2008, 29(10): 2794-2798. (XIAO Heng-lin, BAO Hua, WANG Cui-ying, et al. Research on theory of seepage monitoring based on distributed optical fiber sensing technology[J]. Rock and Soil Mechanics, 2008, 29(10): 2794-2798. (in Chinese))
[4] 肖衡林, 蔡德所. 基于温度测量的分布式光纤渗漏监测技术机理探讨[J]. 岩土力学, 2008, 29(增刊): 550-554. (XIAO Heng-lin, CAI De-suo. Discussion on mechanism of distributed fiber optical leakage monitoring technology based on temperature measurement[J]. Rock and Soil Mechanics, 2008, 29(S0): 550-554. (in Chinese))
[5] 董海洲, 张小燕. 堤坝渗漏圆柱状热源模型及试验研究[J].岩石力学与工程学报, 2011, 30(增刊2): 3665-3670. (DONG Hai-zhou, ZHANG Xiao-yan. Seepage cylindrical heat source model of dam and its experimental study[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(S2): 3665-3670. (in Chinese))
[6] 陆艳梅, 陈建生, 董海洲, 等. 大坝渗漏传热模型及拉氏变换解[J]. 岩土工程学报, 2007, 29(2): 274-278. (LU Yan-mei, CHEN Jian-sheng, DONG Hai-zhou, et al. Laplace solution for heat transfer model of dam leakage[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(2): 274-278. (in Chinese))
[7] 张洪济. 热传导[M]. 北京: 高等教育出版社, 1992. (ZHANG Hong-ji. Heat conduction[M]. Beijing: Higher Education Press, 1992. (in Chinese))
[8] 卡里卡B V, 戴斯蒙德R M.工程传热学[M]. 刘吉萱, 译. 北京: 人民教育出版社, 1983. (KARLEKAR B V, DESMOND R M. Engineering heat transfer[M]. LIU Ji-xuan, translator. Beijing: People's Education Press, 1983. (in Chinese))
[9] 章熙民, 任泽霈, 梅飞鸣. 传热学（新一版）[M]. 北京: 中国建筑工业出版社, 1993. (ZHANG Xi-min, REN Ze-pei, MEI Fei-ming. Heat transfer[M]. Beijing: China Architecture & Building Press, 1993. (in Chinese))
[10] ROHSENOW Warren M, HARTNETT James P, CHO Young I. Handbook of heat transfer[M]. McGraw-Hill Book Company, 1973.
[11] 孙亚东, AUFLEGER Markus. 基于光纤温度测量的土石坝渗漏监测技术[J]. 水利水电科技进展, 2000, 20(4): 29-31. (SUN Dong-ya, AUFLEGER Markus. Leakage monitoring of embankment dams based on fiber optic temperature measurement[J]. Advances in Science and Technology of Water Resources, 2000, 20(4): 29-31. (in Chinese))