Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points

Tao Hu; Su Bu; GY Hou; Yan Wang; Ziyi Hu; Zixiang Li; Jinping Liang; Yuliang Zhou; Haoyong Jing

doi:doi:10.11648/j.ogce.20200805.12

| Peer-Reviewed

Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points

Tao Hu, Su Bu, GY Hou, Yan Wang, Ziyi Hu, Zixiang Li, Jinping Liang, Yuliang Zhou, Haoyong Jing

Published in International Journal of Oil, Gas and Coal Engineering (Volume 8, Issue 5)

Received: 24 September 2020 Accepted: 30 September 2020 Published: 7 October 2020

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

The safety monitoring of coal roadways roof is the key to prevent roof accidents and ensure coal mines safety. However, the monitoring blind zones caused by traditional methods is one of the main reasons of frequent roof accidents. To ensure the safety of coal mines production, a novel roof monitoring method is proposed in this paper, which is based on the distributed optical fiber sensing (DOFS) and the pre-stretched optical fiber layout at fixed points (POFLF). The research of this approach has been carried out through analysis of DOFS optical fiber strain monitoring and POFLF theory, and with the help of indoor optical fiber strain experiment. Finally the approach was applied in the field monitoring of a coal roadway roof. Aforementioned verified the optical fiber strain distribution not only accurately indicate the roof settlement range, but also qualitatively and quantitatively demonstrate the roof subsidence displacement. The feasibility and validation of the approach as a supplementary or auxiliary resorts in roof safety monitoring were confirmed. The research in this paper not only has important reference significance for the safety monitoring of coal roadways roof under similar geological and production conditions, but be of helpful for improving the coal mine safety as well.

Published in	International Journal of Oil, Gas and Coal Engineering (Volume 8, Issue 5)
DOI	10.11648/j.ogce.20200805.12
Page(s)	103-115
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Coal Roadway Roof Monitoring, Distributed Optical Fiber Sensing, Brillouin Optic Time-domain Reflectometry, Pre-stretching Optical Fiber Layout at Fixed-point, Quantitative Characterization

References

[1]	Tong R, Zhai C, Jia Q, et al. “An interactive model among potential human risk factors: 331 cases of coal mine roof accidents in China”, International journal of environmental research and public health, 2018, vol. 15, no. 6, pp. 1144-1164.
[2]	Shen B. “Coal mine roadway stability in soft rock: a case study “. Rock Mechanics and Rock Engineering, 2014, vol. 47, no. 6, pp. 2225-2238.
[3]	Zhao Y, Zhang N, Si G. “A fiber Bragg grating-based monitoring system for roof safety control in underground coal mining”. Sensors, 2016, vol. 16, no. 10, pp. 1759-1772.
[4]	HAO Deng-yun, CUI Qian-li, HE Jie, et al.”Deformation characteristics and separation monitoring of layered roof roadway supported with bolts and cables”, Journal of China Coal Society, 2017, vol. 42, no. S1, pp. 43-50, DOI: 10.13225/j.cnki.jccs.2016.1438.
[5]	Shen B, King A, Guo H. “Displacement, stress and seismicity in roadway roofs during mining-induced failure “, International Journal of Rock Mechanics and Mining Sciences, 2008, vol. 45, no. 5, pp. 672-688.
[6]	Hong-Pu K, Jin-Hua W, Jian L. “Study and applications of roadway support techniques for coal mines”. Journal of China Coal Society, 2010, vol. 35, no. 11, pp. 1809-1814.
[7]	Zhao Z G, Zhang Y J, Li C, et al. “monitoring of coal mine roadway roof separation based on fiber Bragg grating displacement sensors”. International Journal of Rock Mechanics and Mining Sciences, 2015, vol. 2015, no. 74, pp. 128-132.
[8]	Gong Hongkui, Mehmet S. Kizil, Zhongwei Chen, Moe Amanzadeh, Ben Yang, et al., "Advances in fibre optic based geotechnical monitoring systems for underground excavations." International Journal of Mining Science and Technology, 2019, vol. 29, no. 2 pp. 229-238.
[9]	Hiroshige Ohno, Hiroshi Naruse, Mitsuru Kihara, and Akiyoshi Shimada,” Industrial Applications of the BOTDR Optical Fiber Strain Sensor”, Optical Fiber Technology, 2001, vol. 7, no. 1, pp. 45-64.
[10]	Hu, T.; Hou, G.; Li, Z. The Field Monitoring Experiment of the Roof Strata Movement in Coal Mining Based on DFOS. Sensors, 2020, 20, 1318.
[11]	Cheung L L K, Soga K, Bennett P J, et al. Optical fibre strain measurement for tunnel lining monitoring. Proceedings of the Institution of Civil Engineers-Geotechnical Engineering, 2010, vol. 163, no. 3, pp. 119-130.
[12]	Di Murro V, Pelecanos L, Soga K, et al. Long-term deformation monitoring of CERN concrete-lined tunnels using distributed fibre-optic sensing. Geotechnical Engineering Journal of the SEAGS & AGSSEA, 2019, 50 (1).
[13]	Ricardo Moffat, Javier Sotomayor, Juan Felipe Beltrán,” Estimating tunnel wall displacements using a simple sensor basedon a Brillouin optical time domain reﬂectometer apparatus”, International Journal of Rock Mechanics & Mining Sciences, 2015, vol. 2015, no. 75, pp. 233-243.
[14]	Naruse H, Uehara H, Deguchi T, et al. Application of a distributed fibre optic strain sensing system to monitoring changes in the state of an underground mine. Measurement science and technology, 2007, vol. 18, no. 10, pp. 3202.
[15]	Krohn, D.; MacDougall, T.; Mendez, A. FIBER OPTIC SENSORS: Fundamental and Applications; SPIE: Bellingham, WA, USA, 2015.
[16]	Hartog A H. An introduction to distributed optical fibre sensors. CRC press, 2017. pp. 9-25.
[17]	Bai Q, Wang Q, Wang D, et al. Recent advances in Brillouin optical time domain reflectometry. Sensors, 2019, 19 (8): 1862.
[18]	Bin S, HZ X, Dan Z, et al. Feasibility study on application of BOTDR to health monitoring for large infrastructure engineering, 2004, Chinese Journal of Rock Mechanics and Engineering. vol. 23, no. 3, pp. 494-499.
[19]	Manchao H, Yubing G, Jun Y, et al. An Innovative Approach for Gob-Side Entry Retaining in Thick Coal Seam Longwall Mining, Energies, 2017, vol. 10, no. 11, pp. 1785.
[20]	Kang H, Wang J, Lin J. Case studies of rock bolting in coal mine roadways. Chinese Journal of Rock Mechanics & Engineering, 2010, vol. 29, no. 4, pp. 649-664.
[21]	GY H., Tao H., ZX L., BB X., HL X., TC Z., Fiber strain characterization of "two zones" deformation of over-burden mining based on BOFDA, Journal of Mining & Safety Engineering, 2020, vol. 37, no. 02, pp. 224-237.
[22]	Hu, T.; Hou, G.; Bu, S.; Zhu, Z.; Wang, Y.; Hu, Z.; Li, Z. A Novel Approach for Predicting the Height of Water-Conducting Fracture Zone under the High Overburden Caving Strength Based on Optimized Processes. Processes 2020, 8, 950.
[23]	Zhang, G., He, F., Jia, H. et al. Analysis of Gateroad Stability in Relation to Yield Pillar Size: A Case Study. Rock Mech Rock Eng, 2017, vol. 50, pp. 1263–1278, https://doi.org/10.1007/s00603-016-1155-1.
[24]	Kulatilake, P. H. S. W., et al. "Investigation of stability of a tunnel in a deep coal mine in China." International Journal of Mining Science and Technology, 2013, vol. 23, no. 4, pp. 579-589.
[25]	Coons, D. J., McCarter, M. K., Wempen, J. M. et al. Experimental Evaluation of a Two-Entry Gate-Road Yield Pillar: Convergence Monitoring and Physical Properties. Mining, Metallurgy & Exploration, 2020, vol. 37, pp. 701–708.

Cite This Article

Plain Text BibTeX RIS

APA Style

Tao Hu, Su Bu, GY Hou, Yan Wang, Ziyi Hu, et al. (2020). Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points. International Journal of Oil, Gas and Coal Engineering, 8(5), 103-115. https://doi.org/10.11648/j.ogce.20200805.12

Copy | Download

ACS Style

Tao Hu; Su Bu; GY Hou; Yan Wang; Ziyi Hu, et al. Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points. Int. J. Oil Gas Coal Eng. 2020, 8(5), 103-115. doi: 10.11648/j.ogce.20200805.12

Copy | Download

AMA Style

Tao Hu, Su Bu, GY Hou, Yan Wang, Ziyi Hu, et al. Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points. Int J Oil Gas Coal Eng. 2020;8(5):103-115. doi: 10.11648/j.ogce.20200805.12

Copy | Download

@article{10.11648/j.ogce.20200805.12,
  author = {Tao Hu and Su Bu and GY Hou and Yan Wang and Ziyi Hu and Zixiang Li and Jinping Liang and Yuliang Zhou and Haoyong Jing},
  title = {Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points},
  journal = {International Journal of Oil, Gas and Coal Engineering},
  volume = {8},
  number = {5},
  pages = {103-115},
  doi = {10.11648/j.ogce.20200805.12},
  url = {https://doi.org/10.11648/j.ogce.20200805.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20200805.12},
  abstract = {The safety monitoring of coal roadways roof is the key to prevent roof accidents and ensure coal mines safety. However, the monitoring blind zones caused by traditional methods is one of the main reasons of frequent roof accidents. To ensure the safety of coal mines production, a novel roof monitoring method is proposed in this paper, which is based on the distributed optical fiber sensing (DOFS) and the pre-stretched optical fiber layout at fixed points (POFLF). The research of this approach has been carried out through analysis of DOFS optical fiber strain monitoring and POFLF theory, and with the help of indoor optical fiber strain experiment. Finally the approach was applied in the field monitoring of a coal roadway roof. Aforementioned verified the optical fiber strain distribution not only accurately indicate the roof settlement range, but also qualitatively and quantitatively demonstrate the roof subsidence displacement. The feasibility and validation of the approach as a supplementary or auxiliary resorts in roof safety monitoring were confirmed. The research in this paper not only has important reference significance for the safety monitoring of coal roadways roof under similar geological and production conditions, but be of helpful for improving the coal mine safety as well.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points
AU  - Tao Hu
AU  - Su Bu
AU  - GY Hou
AU  - Yan Wang
AU  - Ziyi Hu
AU  - Zixiang Li
AU  - Jinping Liang
AU  - Yuliang Zhou
AU  - Haoyong Jing
Y1  - 2020/10/07
PY  - 2020
N1  - https://doi.org/10.11648/j.ogce.20200805.12
DO  - 10.11648/j.ogce.20200805.12
T2  - International Journal of Oil, Gas and Coal Engineering
JF  - International Journal of Oil, Gas and Coal Engineering
JO  - International Journal of Oil, Gas and Coal Engineering
SP  - 103
EP  - 115
PB  - Science Publishing Group
SN  - 2376-7677
UR  - https://doi.org/10.11648/j.ogce.20200805.12
AB  - The safety monitoring of coal roadways roof is the key to prevent roof accidents and ensure coal mines safety. However, the monitoring blind zones caused by traditional methods is one of the main reasons of frequent roof accidents. To ensure the safety of coal mines production, a novel roof monitoring method is proposed in this paper, which is based on the distributed optical fiber sensing (DOFS) and the pre-stretched optical fiber layout at fixed points (POFLF). The research of this approach has been carried out through analysis of DOFS optical fiber strain monitoring and POFLF theory, and with the help of indoor optical fiber strain experiment. Finally the approach was applied in the field monitoring of a coal roadway roof. Aforementioned verified the optical fiber strain distribution not only accurately indicate the roof settlement range, but also qualitatively and quantitatively demonstrate the roof subsidence displacement. The feasibility and validation of the approach as a supplementary or auxiliary resorts in roof safety monitoring were confirmed. The research in this paper not only has important reference significance for the safety monitoring of coal roadways roof under similar geological and production conditions, but be of helpful for improving the coal mine safety as well.
VL  - 8
IS  - 5
ER  -

Copy | Download

Author Information

Tao Hu

School of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing, China
Su Bu

School of Laws and Humanities, China University of Mining & Technology, Beijing, China
GY Hou

School of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing, China
Yan Wang

Shandong Energy Group CO., Ltd., Jinan, China
Ziyi Hu

Shandong Energy Group CO., Ltd., Jinan, China
Zixiang Li

School of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing, China
Jinping Liang

School of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing, China
Yuliang Zhou

School of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing, China
Haoyong Jing

School of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing, China

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Tao Hu, Su Bu, GY Hou, Yan Wang, Ziyi Hu, et al. (2020). Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points. International Journal of Oil, Gas and Coal Engineering, 8(5), 103-115. https://doi.org/10.11648/j.ogce.20200805.12

Copy | Download

ACS Style

Tao Hu; Su Bu; GY Hou; Yan Wang; Ziyi Hu, et al. Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points. Int. J. Oil Gas Coal Eng. 2020, 8(5), 103-115. doi: 10.11648/j.ogce.20200805.12

Copy | Download

AMA Style

Tao Hu, Su Bu, GY Hou, Yan Wang, Ziyi Hu, et al. Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points. Int J Oil Gas Coal Eng. 2020;8(5):103-115. doi: 10.11648/j.ogce.20200805.12

Copy | Download

@article{10.11648/j.ogce.20200805.12,
  author = {Tao Hu and Su Bu and GY Hou and Yan Wang and Ziyi Hu and Zixiang Li and Jinping Liang and Yuliang Zhou and Haoyong Jing},
  title = {Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points},
  journal = {International Journal of Oil, Gas and Coal Engineering},
  volume = {8},
  number = {5},
  pages = {103-115},
  doi = {10.11648/j.ogce.20200805.12},
  url = {https://doi.org/10.11648/j.ogce.20200805.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20200805.12},
  abstract = {The safety monitoring of coal roadways roof is the key to prevent roof accidents and ensure coal mines safety. However, the monitoring blind zones caused by traditional methods is one of the main reasons of frequent roof accidents. To ensure the safety of coal mines production, a novel roof monitoring method is proposed in this paper, which is based on the distributed optical fiber sensing (DOFS) and the pre-stretched optical fiber layout at fixed points (POFLF). The research of this approach has been carried out through analysis of DOFS optical fiber strain monitoring and POFLF theory, and with the help of indoor optical fiber strain experiment. Finally the approach was applied in the field monitoring of a coal roadway roof. Aforementioned verified the optical fiber strain distribution not only accurately indicate the roof settlement range, but also qualitatively and quantitatively demonstrate the roof subsidence displacement. The feasibility and validation of the approach as a supplementary or auxiliary resorts in roof safety monitoring were confirmed. The research in this paper not only has important reference significance for the safety monitoring of coal roadways roof under similar geological and production conditions, but be of helpful for improving the coal mine safety as well.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points
AU  - Tao Hu
AU  - Su Bu
AU  - GY Hou
AU  - Yan Wang
AU  - Ziyi Hu
AU  - Zixiang Li
AU  - Jinping Liang
AU  - Yuliang Zhou
AU  - Haoyong Jing
Y1  - 2020/10/07
PY  - 2020
N1  - https://doi.org/10.11648/j.ogce.20200805.12
DO  - 10.11648/j.ogce.20200805.12
T2  - International Journal of Oil, Gas and Coal Engineering
JF  - International Journal of Oil, Gas and Coal Engineering
JO  - International Journal of Oil, Gas and Coal Engineering
SP  - 103
EP  - 115
PB  - Science Publishing Group
SN  - 2376-7677
UR  - https://doi.org/10.11648/j.ogce.20200805.12
AB  - The safety monitoring of coal roadways roof is the key to prevent roof accidents and ensure coal mines safety. However, the monitoring blind zones caused by traditional methods is one of the main reasons of frequent roof accidents. To ensure the safety of coal mines production, a novel roof monitoring method is proposed in this paper, which is based on the distributed optical fiber sensing (DOFS) and the pre-stretched optical fiber layout at fixed points (POFLF). The research of this approach has been carried out through analysis of DOFS optical fiber strain monitoring and POFLF theory, and with the help of indoor optical fiber strain experiment. Finally the approach was applied in the field monitoring of a coal roadway roof. Aforementioned verified the optical fiber strain distribution not only accurately indicate the roof settlement range, but also qualitatively and quantitatively demonstrate the roof subsidence displacement. The feasibility and validation of the approach as a supplementary or auxiliary resorts in roof safety monitoring were confirmed. The research in this paper not only has important reference significance for the safety monitoring of coal roadways roof under similar geological and production conditions, but be of helpful for improving the coal mine safety as well.
VL  - 8
IS  - 5
ER  -

Copy | Download