Experimental Study on the Feasibility and Influencing Factors of Pipeline Leakage Monitoring Based on FBG

孙梦雅; 施斌; 段新春; 冯晨曦; 周谷宇; 魏广庆

doi:10.13409/j.cnki.jdpme.2019.05.004

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Experimental Study on the Feasibility and Influencing Factors of Pipeline Leakage Monitoring Based on FBG

更新时间：2025-12-11

- Experimental Study on the Feasibility and Influencing Factors of Pipeline Leakage Monitoring Based on FBG
- Vol. 39, Issue 5, Pages: 715-723(2019)
- 作者机构：
- 作者简介：
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- DOI：10.13409/j.cnki.jdpme.2019.05.004
  CLC： U990.3
- Published：2019
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[1]孙梦雅,施斌,段新春,冯晨曦,周谷宇,魏广庆.基于FBG的管道渗漏监测可行性及其影响因素试验研究[J].防灾减灾工程学报,2019,39(05):715-723.

孙梦雅, 施斌, 段新春, et al. Experimental Study on the Feasibility and Influencing Factors of Pipeline Leakage Monitoring Based on FBG[J]. 2019, 39(5): 715-723.
[1]孙梦雅,施斌,段新春,冯晨曦,周谷宇,魏广庆.基于FBG的管道渗漏监测可行性及其影响因素试验研究[J].防灾减灾工程学报,2019,39(05):715-723. DOI： 10.13409/j.cnki.jdpme.2019.05.004.

孙梦雅, 施斌, 段新春, et al. Experimental Study on the Feasibility and Influencing Factors of Pipeline Leakage Monitoring Based on FBG[J]. 2019, 39(5): 715-723. DOI： 10.13409/j.cnki.jdpme.2019.05.004.

摘要

针对目前多种光纤感测技术应用于管道渗漏监测中的不足

利用蒸发式湿度测量原理

提出了一种基于FBG技术的管道渗漏监测方法

并设计了试验对其可行性及影响因素进行探究。结果表明:该方法在湿度约为80%RH的环境中能测出1.84℃的渗漏稳定温差

具有良好的可行性;此外

风速、水温两个因素会对稳定温差产生影响

渗漏量这一因素不影响稳定温差

仅影响温差响应的等待时长

该方法在风速较大、水温较低的环境因素下具有更加良好的渗漏监测效果。

Abstract

The underground utility tunnel brings together various life pipelines of the city

where leakage monitoring of water supply and drainage pipelines is closely related to the overall security of pipe gallery and the development of sponge city technology.Optical fiber sensing technology has great potential in pipeline leakage monitoring because of its advantages such as high measurement precision

anti-electromagnetic interference and distributed real-time monitoring.In this article

in allusion to the weaknesses of present optical fiber sensing technologies applied in pipeline leakage monitoring

a new method based on FBG technology was proposed to monitor pipeline leakage using evaporative humidity measurement principle.Tests were designed to explore the feasibility and influential factors of this new method.It is indicated by the experimental results that this method can measure a seepage stable temperature difference of 1.84℃ in a humidity of about 80% RH

thus it has good feasibility.In addition

wind speed and temperature will affect the stable temperature difference.The amount of seepage has no effect on the stable temperature difference and it only affects the waiting time of temperature response.A better seepage monitoring result will be acquired under the environment with a larger wind speed and a lower water temperature.

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