Monitoring a flexible barrier under the impact of large boulder and granular flow using conventional and optical fibre sensors

Jian Hua Yin; Jie Qiong Qin; Dao Yuan Tan; Zhuo Hui Zhu

doi:10.1007/978-3-319-97112-4_169

Monitoring a flexible barrier under the impact of large boulder and granular flow using conventional and optical fibre sensors

Jian Hua Yin, Jie Qiong Qin, Dao Yuan Tan, Zhuo Hui Zhu

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

2 Citations (Scopus)

Abstract

Flexible barriers, as one effective way to mitigate rock-fall hazards, have obvious advantages compared to the conventional concrete check-dams. It has been proved that a flexible barrier can perform well in trapping debris flow. In this study, an improved large-scale physical model for studying the impact of debris flow on a flexible barrier system is designed and constructed in Hong Kong. Some mechanical systems of the model are carefully designed to minimize the friction in door opening process. A comprehensive monitoring system has been specially designed and installed in this physical model. The system consists of conventional sensors (accelerometers, large tension-link force transducers, strain gauges on posts), special optical fibre sensors (small FBG tension-link force transducers, FBG basal friction transducers, FBG earth pressure cells), and high-speed cameras, high-frequency data-loggers, and computers. A single boulder impact test and a granular flow impact test were conducted using this large-scale physical model in order to evaluate the performance of the flexible barriers. In this paper, we will present the design and installation of this comprehensive monitoring system and selected test results.

Original language	English
Title of host publication	Springer Series in Geomechanics and Geoengineering
Editors	Wei Wu, Hai-Sui Yu
Publisher	Springer-Verlag
Pages	755-758
Number of pages	4
Edition	216849
ISBN (Print)	9783319971117
DOIs	https://doi.org/10.1007/978-3-319-97112-4_169
Publication status	Published - 1 Jan 2018
Event	China-Europe Conference on Geotechnical Engineering, 2016 - Vienna, Austria Duration: 13 Aug 2016 → 16 Aug 2016

Publication series

Name	Springer Series in Geomechanics and Geoengineering
Number	216849
ISSN (Print)	1866-8755
ISSN (Electronic)	1866-8763

Conference

Conference	China-Europe Conference on Geotechnical Engineering, 2016
Country/Territory	Austria
City	Vienna
Period	13/08/16 → 16/08/16

Keywords

Flexible barriers
Impact
Monitoring system
Optical fibre sensors

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Mechanics of Materials

More information

10.1007/978-3-319-97112-4_169

http://hdl.handle.net/10397/102581

Cite this

Yin, J. H., Qin, J. Q., Tan, D. Y., & Zhu, Z. H. (2018). Monitoring a flexible barrier under the impact of large boulder and granular flow using conventional and optical fibre sensors. In W. Wu, & H.-S. Yu (Eds.), Springer Series in Geomechanics and Geoengineering (216849 ed., pp. 755-758). (Springer Series in Geomechanics and Geoengineering; No. 216849). Springer-Verlag. https://doi.org/10.1007/978-3-319-97112-4_169

Yin, Jian Hua ; Qin, Jie Qiong ; Tan, Dao Yuan et al. / Monitoring a flexible barrier under the impact of large boulder and granular flow using conventional and optical fibre sensors. Springer Series in Geomechanics and Geoengineering. editor / Wei Wu ; Hai-Sui Yu. 216849. ed. Springer-Verlag, 2018. pp. 755-758 (Springer Series in Geomechanics and Geoengineering; 216849).

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abstract = "Flexible barriers, as one effective way to mitigate rock-fall hazards, have obvious advantages compared to the conventional concrete check-dams. It has been proved that a flexible barrier can perform well in trapping debris flow. In this study, an improved large-scale physical model for studying the impact of debris flow on a flexible barrier system is designed and constructed in Hong Kong. Some mechanical systems of the model are carefully designed to minimize the friction in door opening process. A comprehensive monitoring system has been specially designed and installed in this physical model. The system consists of conventional sensors (accelerometers, large tension-link force transducers, strain gauges on posts), special optical fibre sensors (small FBG tension-link force transducers, FBG basal friction transducers, FBG earth pressure cells), and high-speed cameras, high-frequency data-loggers, and computers. A single boulder impact test and a granular flow impact test were conducted using this large-scale physical model in order to evaluate the performance of the flexible barriers. In this paper, we will present the design and installation of this comprehensive monitoring system and selected test results.",

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Yin, JH, Qin, JQ, Tan, DY & Zhu, ZH 2018, Monitoring a flexible barrier under the impact of large boulder and granular flow using conventional and optical fibre sensors. in W Wu & H-S Yu (eds), Springer Series in Geomechanics and Geoengineering. 216849 edn, Springer Series in Geomechanics and Geoengineering, no. 216849, Springer-Verlag, pp. 755-758, China-Europe Conference on Geotechnical Engineering, 2016, Vienna, Austria, 13/08/16. https://doi.org/10.1007/978-3-319-97112-4_169

Monitoring a flexible barrier under the impact of large boulder and granular flow using conventional and optical fibre sensors. / Yin, Jian Hua; Qin, Jie Qiong; Tan, Dao Yuan et al.
Springer Series in Geomechanics and Geoengineering. ed. / Wei Wu; Hai-Sui Yu. 216849. ed. Springer-Verlag, 2018. p. 755-758 (Springer Series in Geomechanics and Geoengineering; No. 216849).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AB - Flexible barriers, as one effective way to mitigate rock-fall hazards, have obvious advantages compared to the conventional concrete check-dams. It has been proved that a flexible barrier can perform well in trapping debris flow. In this study, an improved large-scale physical model for studying the impact of debris flow on a flexible barrier system is designed and constructed in Hong Kong. Some mechanical systems of the model are carefully designed to minimize the friction in door opening process. A comprehensive monitoring system has been specially designed and installed in this physical model. The system consists of conventional sensors (accelerometers, large tension-link force transducers, strain gauges on posts), special optical fibre sensors (small FBG tension-link force transducers, FBG basal friction transducers, FBG earth pressure cells), and high-speed cameras, high-frequency data-loggers, and computers. A single boulder impact test and a granular flow impact test were conducted using this large-scale physical model in order to evaluate the performance of the flexible barriers. In this paper, we will present the design and installation of this comprehensive monitoring system and selected test results.

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Yin JH, Qin JQ, Tan DY, Zhu ZH. Monitoring a flexible barrier under the impact of large boulder and granular flow using conventional and optical fibre sensors. In Wu W, Yu HS, editors, Springer Series in Geomechanics and Geoengineering. 216849 ed. Springer-Verlag. 2018. p. 755-758. (Springer Series in Geomechanics and Geoengineering; 216849). doi: 10.1007/978-3-319-97112-4_169

Monitoring a flexible barrier under the impact of large boulder and granular flow using conventional and optical fibre sensors

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

More information

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