基于分布式光纤传感技术的渗流监测理论研究

›› 2008, Vol. 29 ›› Issue (10): 2794-2798.

基于分布式光纤传感技术的渗流监测理论研究

肖衡林^{1, 2}，鲍华³，王翠英²，蔡德所⁴

1.中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室，武汉 430071；2.湖北工业大学土木工程与建筑学院，武汉 430068； 3.铁道第四勘察设计院，武汉 430063；4.武汉大学土木建筑工程学院，武汉 430072

收稿日期:2006-12-13 出版日期:2008-10-10 发布日期:2013-08-03
作者简介:肖衡林，男，1977年生，博士，主要从事渗漏监测及土工合成材料应用、地基处理等方面的教学和研究
基金资助:
国家“948”项目（No. 200109）资助。

Research on theory of seepage monitoring based on distributed optical fiber sensing technology

XIAO Heng-lin^{1, 2}, BAO Hua³, WANG Cui-ying², CAI De-suo⁴

1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. School of Civil Engineering and Architecture, Hubei University of technology, Wuhan 430068, China; 3. The Fourth Survey & Design Institute of China Railway ,Wuhan 430063, China; 4. School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China

Received:2006-12-13 Online:2008-10-10 Published:2013-08-03

摘要/Abstract

摘要： 从阐述多孔介质传热过程出发，逐一分析了在非渗流及渗流情况下，光纤与多孔介质之间的传热过程，详细分析了光纤与水流对流的传热过程，推导了多孔介质中渗流水和光纤之间的换热系数计算公式。在一定假设条件下，推导了导热系数（渗流流速）、加热功率和温升的非渗流情况与渗流情况监测理论方程，为分布式光纤传感技术监测渗流的应用提供了坚实的理论基础。

关键词: 分布式光纤传感技术, 渗流监测, 监测理论

Abstract: Starting with expatiating the heat transfer process of porous medium, heat transfer process between optical fiber and porous medium on non-seepage condition and seepage condition is analyzed one by one. The process of convection heat transfer between optical fiber and seepage is studied detailedly. The formulas of calculating heat transfer coefficient between optical fiber and seepage in the porous medium are deduced. Based on some hypotheses, the theoretical equation of seepage monitoring about thermal conductivity (seepage velocity), heating power, and temperature rise are deduced, which offers the steady theoretical foundation for the application of this technology.

Key words: distributed optical fiber sensing technology, seepage monitoring, monitoring theory

中图分类号:

TV 698.1+2

肖衡林，鲍华，王翠英，蔡德所 . 基于分布式光纤传感技术的渗流监测理论研究[J]. , 2008, 29(10): 2794-2798.

XIAO Heng-lin , BAO Hua , WANG Cui-ying , CAI De-suo . Research on theory of seepage monitoring based on distributed optical fiber sensing technology[J]. , 2008, 29(10): 2794-2798.

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