Application of Fiber Bragg Grating Sensor Technology to Leak Detection and Monitoring in Diaphragm Wall Joints: A Field Study

doi:10.3390/s21020441

	Application of Fiber Bragg Grating Sensor Technology to Leak Detection and Monitoring in Diaphragm Wall Joints: A Field Study
	Zhang, Yapeng 1,2; Chen, Congxin 1; Zheng, Yun 1; Shao, Yong 1,2; Sun, Chaoyi 1,2
刊名	SENSORS
	2021
卷号	21 期号:2 页码:18
关键词	diaphragm wall joint leakage detection fiber Bragg grating sensor field study
DOI	10.3390/s21020441
英文摘要	Joints between diaphragm wall panels are weak spots in wall construction. It is essential that potential leak sites are detected prior to excavation. In this study, a novel leak detection and monitoring system is presented that is based on fiber Bragg grating (FBG) sensing technology. A field study was performed in a deep excavation supported by diaphragm walls (in Hohhot, China) to validate the feasibility and effectiveness of the proposed method. Two schemes were trialed; one using pipes made of stainless steel, and one used a pipeless method. The results of the field study are presented and discussed. They show that potential leak sites in the wall joints could be determined prior to excavation using the proposed detection method. Stainless steel is a good material to use to make the detection tube because it can protect the FBG sensors and heating belts from damage and is more sensitive to water leakage. The field study provides good evidence for the feasibility of the new detection system. It also provides valuable experience for the field application of the system and has generated useful data to use in follow-up work.
资助项目	National Key R&D Program of China[2017YFC0805307] ; National Natural Science Foundation of China[12072358] ; Science & technology Research and Development Program of China railway[P2018G045]
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
语种	英语
出版者	MDPI
WOS记录号	WOS:000611718100001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/25621]
专题	中科院武汉岩土力学所
通讯作者	Zheng, Yun
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yapeng,Chen, Congxin,Zheng, Yun,et al. Application of Fiber Bragg Grating Sensor Technology to Leak Detection and Monitoring in Diaphragm Wall Joints: A Field Study[J]. SENSORS,2021,21(2):18.
APA	Zhang, Yapeng,Chen, Congxin,Zheng, Yun,Shao, Yong,&Sun, Chaoyi.(2021).Application of Fiber Bragg Grating Sensor Technology to Leak Detection and Monitoring in Diaphragm Wall Joints: A Field Study.SENSORS,21(2),18.
MLA	Zhang, Yapeng,et al."Application of Fiber Bragg Grating Sensor Technology to Leak Detection and Monitoring in Diaphragm Wall Joints: A Field Study".SENSORS 21.2(2021):18.