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

被引:17
作者
Zhang, Yapeng [1 ,2 ]
Chen, Congxin [1 ]
Zheng, Yun [1 ]
Shao, Yong [1 ,2 ]
Sun, Chaoyi [1 ,2 ]
机构
[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
基金
中国国家自然科学基金; 国家重点研发计划;
关键词
diaphragm wall; joint; leakage detection; fiber Bragg grating sensor; field study;
D O I
10.3390/s21020441
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
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.
引用
收藏
页码:1 / 18
页数:18
相关论文
共 34 条
[1]   Graphene diaphragm integrated FBG sensors for simultaneous measurement of water level and temperature [J].
Ameen, Odai Falah ;
Younus, Marwan Hafeedh ;
Aziz, M. S. ;
Azmi, Asrul Izam ;
Ibrahim, R. K. Raja ;
Ghoshal, S. K. .
SENSORS AND ACTUATORS A-PHYSICAL, 2016, 252 :225-232
[2]   Distributed temperature monitoring for liquid sodium leakage detection using OFDR-based Rayleigh backscattering [J].
Boldyreva, E. ;
Cotillard, R. ;
Laffont, G. ;
Ferdinand, P. ;
Cambet, D. ;
Jeannot, J. -P. ;
Charvet, P. ;
Albaladejo, S. ;
Rodriguez, G. .
23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, 2014, 9157
[3]   Optimization of concrete mix design to account for strength and hydration heat in massive concrete structures [J].
Bourchy, Agathe ;
Barnes, Laury ;
Bessette, Laetitia ;
Chalencon, Florian ;
Joron, Aurelien ;
Torrenti, Jean Michel .
CEMENT & CONCRETE COMPOSITES, 2019, 103 :233-241
[4]   Probabilistic assessment of groundwater leakage in diaphragm wall joints for deep excavations [J].
Castaldo, P. ;
Jalayer, F. ;
Palazzo, B. .
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2018, 71 :531-543
[5]   Carbonate rocks as fillers in blended cements: Physical and mechanical properties [J].
Di Salvo Barsi, Antonela ;
Marchetti, Guillermina ;
Trezza, Monica A. ;
Irassar, Edgardo F. .
CONSTRUCTION AND BUILDING MATERIALS, 2020, 248
[6]   Traceable sea water temperature measurements performed by optical fibers [J].
Garcia Izquierdo, C. ;
Garcia-Benadi, A. ;
Corredera, P. ;
Hernandez, S. ;
Gonzalez Calvo, A. ;
del Rio Fernandez, J. ;
Nogueres-Cervera, M. ;
Pulido de Torres, C. ;
del Campo, D. .
MEASUREMENT, 2018, 127 :124-133
[7]   Numerical study of the effects of groundwater drawdown on ground settlement for excavation in residual soils [J].
Goh, A. T. C. ;
Zhang, R. H. ;
Wang, W. ;
Wang, L. ;
Liu, H. L. ;
Zhang, W. G. .
ACTA GEOTECHNICA, 2020, 15 (05) :1259-1272
[8]  
Hannink G., 2013, P 18 INT C SOIL MECH
[9]   Recent progress of using Brillouin distributed fiber optic sensors for geotechnical health monitoring [J].
Hong Cheng-Yu ;
Zhang Yi-Fan ;
Li Guo-Wei ;
Zhang Meng-Xi ;
Liu Zi-Xiong .
SENSORS AND ACTUATORS A-PHYSICAL, 2017, 258 :131-145
[10]   SURFACE SUBSIDENCE AND DRAWDOWN OF THE WATER-TABLE DUE TO PUMPING [J].
HSI, JP ;
CARTER, JP ;
SMALL, JC .
GEOTECHNIQUE, 1994, 44 (03) :381-396