Development and Application of a Fixed-point Fiber Optic Sensing Cable for Ground Fissure Monitoring

SUO Wenbin 1, LU Yi2, SHI Bin1, ZHU Honghu1,3, WEI Guangqing4, JIANG Hongtao5

1 School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China

2 Key Laboratory of Earth Fissures Geological Disaster, Ministry of Land and Resource (Geological Survey of Jiangsu Province), Nanjing 210049, China

3 Nanjing University High-Tech Institute at Suzhou 215123, China

4 Suzhou Nanzee Sensing Technology Co., Ltd, Suzhou 215123, China

5 School of Geographic and Oceanographic Science, Nanjing University, Nanjing 210023, China

J Civil Struct Health Monit 2016

ABSTRACT: Ground fissure is a serious geological disasters that may endanger the safety of surrounding people and infrastructures. In this paper, the distributed fiber optic sensing (DFOS) technology is adopted to monitor ground fissures in complicated field environments. A new fixed-point fiber optic sensing cable (FFOSC) is designed and the corresponding installation method is developed. Both laboratory and field tests were implemented, and the result shows that the FFOSC has high accuracy and is sensible to the growth of ground fissures. The results also reveal that the FFOSC is suitable for monitoring not only the cracking widths but also the developing trends of the ground fissures. The FFOSC provides a solid basis to the investigation of ground fissure mechanism, as well as to the prevention of related geo-hazards.

KEYWORDS: Ground fissure; Field monitoring; Distributed fiber optic sensing (DFOS); Brillouin Optical Time Domain Reflectometry (BOTDR); fixed-point fiber optic sensing cable (FFOSC)


1. Wang G Y, You G, Shi B, Yu J, Li H Y, Zong K H (2009) Earth fissures triggered by groundwater withdrawal and coupled by geological structures in Jiangsu Province, China. Environ Geol 57:1047–1054

2. Peng JB, Chen LW, Huang QB, Men YM, Fan W, Yan JK (2013) Physical simulation of ground fissures triggered by underground fault activity. Eng Geol 155:19-30

3. Chen XX, Luo ZJ, Zhou SL (2014) Influences of soil hydraulic and mechanical parameters on land subsidence and ground fissures caused by groundwater exploitation. J Hydrodyn 26:155-164

4. Kim JW, Lu Z, Jia Y, Shum CK (2015) Ground subsidence in Tucson, Arizona, monitored by time-series analysis using multi-sensor InSAR datasets from 1993 to 2011. ISPRS J Photogramm Remote Sens 107:126-141

5. Geng DY, Zhong SL (2000) Ground fissure hazards in USA and China. Acta Seismol Sin 13(4):466-476

6. Xue YQ, Zhang Y, Ye SJ, Li QF (2003) Land subsidence in China and its problems. Quat Sci 23(6):585-593

7. Jiang HT (2005) Problems and discussions in the study of land subsidence in the Suzhou-Wuxi-Changzhou area. Quat Sci 25 (1):29-33

8. Palano M, Puglisi G, Gresta S (2008) Ground deformation patterns at Mt. Etna from 1993 to 2000 from joint use of InSAR and GPS techniques. J Volcanol Geotherm Res 169(3-4):99-120

9. Ng AHM, Ge LL, Yan YG, Li XJ, Chang HC, Zhang K, Rizos C (2010) Mapping accumulated mine subsidence using small stack of SAR differential interfere ograms in the Southern coalfield of New South Wales, Australia. Eng Geol 115:1–15

10. Tosi L, Teatini P, Carbognin L, Franken J (2007) A new project to monitor land subsidence in the northern Venice coastland (Italy). Environ Geol 52:889–898

11. Mahdi M, Yahya D, Thomas R, Hans-Ulrich W, Jochen Z, Siavash A (2007) Land subsidence in Mashhad Valley, northeast Iran: results from InSAR, levelling and GPS. Geophys J Int 168(2):518-526

12. Bao XY, Liang C (2012) Recent progress in distributed fiber optic sensor. Sensors 12(7): 8601-8639

13. Kwon IB, Baik SJ, Im K, Yu JW (2002) Development of fiber optic BOTDA sensor for intrusion detection. Sens Actuators A: Physical 101:77-84

14. Shi B, Xu HZ, Chen B (2003) A feasibility study on the application of fiber-optic distributed sensors for strain measurement in the Taiwan Strait Tunnel Pproject. Mar Georesour Geotechnol 21:333–343

15. Naruse H, Uchiyama H, Kurashima T, Unno S (2000) River levee change detection using distributed fiber optic strain sensor. IEICE Trans Electron E83-c: 462~467

16. Zhu HH, Yin JH, Zhang L, Jin W, Dong JH (2010) Monitoring internal displacements of a model dam using FBG sensing bars. Adv Struct Eng 13(2):249-261

17. Zhu HH, Yin JH, Yeung AT, Jin W (2011) Field pullout testing and performance evaluation of GFRP soil nails. J Geotech Geoenviron Eng, ASCE, 137(7):633-641.

18. Zhu HH, Ho ANL, Yin JH, Sun HW, Pei HF, Hong CY (2012) An optical fiber monitoring system for evaluating the performance of a soil nailed slope. Smart Struct Syst 9(5):393-410

19. Zhang CC, Zhu HH, Shi B, She JK, Zhang D (2016) Performance evaluation of soil-embedded plastic optical fiber sensors for geotechnical monitoring. Smart Struct Syst 17(2):297-311

20. Bastianini F, Rizzo A, Galati N, Deza U, Nanni A (2005) Discontinuous Brillouin strain monitoring of small concrete bridges: comparison between near-to-surface and smart FRP fiber installation techniques. In: Proc. SPIE 5765 Smart Structures and Materials 2005: Nondestructive Evaluation for Health Monitoring and Diagnostics, 5765: pp 612–623

21. Wang BJ, Li K, Shi B, Wei GQ (2009) Test on application of distributed fiber optic sensing technique into soil slope monitoring. Landslides 6(1): 61-68

22. Lu Y, Shi B, Wei GQ, Chen SE, Zhang D (2012) Application of a distributed optical fiber sensing technique in monitoring the stress of precast piles. Smart Mater Struct 21:115011

23. Deif A, Martín-Pérez B, Cousin B, Zhang C, Bao XY, Li W (2010) Detection of cracks in a reinforced concrete beam using distributed Brillouin fiber sensors Smart Mater Struct 19 (5):055014

24. Zhu HH, Shi, B, Zhang J, Yan JF, Zhang CC (2014) Distributed fiber optic monitoring and stability analysis of a model slope under surcharge loading. J Mt Sci 11(4):979-989

25. Sakairi Y, Uchiyama H, Li ZM, Adachi S (2002) A system for measuring temperature and strain separately by BOTDR and OTDR. In: Proc. SPIE 4920, Advanced Sensor Systems and Applications, pp 274-284

26. Uchida S, Levenberg E, Klar A (2015) On-specimen strain measurement with fiber optic distributed sensing. Measurement 60:104-113

27. Moffat R, Sotomayor J, Beltrán JF (2015) Estimating tunnel wall displacements using a simple sensor based on a Brillouin optical time domain reflectometer apparatus. Int J Rock Mech Min Sci 75:233–243

28. Zhu HH, Shi B, Yan JF, Zhang J, Wang J (2015) Investigation of the evolutionary process of a reinforced model slope using a fiber-optic monitoring network. Eng Geol 186:34–43

29. Ding Y, Shi B, Zhang D (2010) Data processing in BOTDR distributed strain measurement based on pattern recognition. Optik 121:2234–2239

30. Iten M, Puzrin AM, Schmid A (2008) Landslide monitoring using a road-embedded optical fiber sensor. In: Proc SPIE 6933, 693315

31. Klar A, Linker R (2010) Feasibility study of automated detection of tunnel excavation by Brillouin optical time domain reflectometry. Tunnelling Underground Space Technol 25:575–586

32. Cheng G, Shi B, Zhu HH, Zhang CC, Wu JH (2015) A field study on distributed fiber optic deformation monitoring of overlying strata during coal mining. J Civil Struct Health Monit 5(5):553-562