Rockfall hazard alarm strategy based on FBG smart passive net structure

详细信息    查看全文

• 作者：Sheng Li (1)
  Junjie Ma (2)
  Jun Hu (3)
  
  1. National Engineering Laboratory for Fiber Optic Sensing Technology ; Wuhan University of Technology ; Wuhan ; 430070 ; China
  2. Wuhan WUTOS Limited Company ; Wuhan ; 430223 ; China
  3. Key Laboratory of Fiber Optic Sensing Technology and Information Processing ; Ministry of Education ; Wuhan University of Technology ; Wuhan ; 430070 ; China
  
• 关键词：Passive net ; rockfall hazard ; fiber Bragg grating ; disaster alarm strategy ; tunnel portal
• 刊名：Photonic Sensors
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：5
• 期：1
• 页码：19-23
• 全文大小：701 KB
• 参考文献：1. Tie Jian She, / Design interim provisions for the newly-built passenger railway line with 300鈥?50 km/h speed. Beijing: China Railway Publishing House, 2008, No. 147.
  2. Yun Ji Ji Chu, / Disaster prevention safety monitoring system of high speed railway-foreign invasion monitoring scheme for road across railway overpass. Beijing: China Railway Publishing House, 2010: 739.
  3. S. Lambert and F. Bourrier, 鈥淒esign of rockfall protection embankments: a review,鈥? / Engineering Geology, 2013, 154(2): 77鈥?8. CrossRef
  4. T. Wang, H. Shi, Q. Wang, and H. Wang, 鈥淩esearch on instrusion monitoring system for PDL,鈥? / Railway Computer Application, 2009, 18(7): 8鈥?0.
  5. G. Meng and R. Zheng, 鈥淩esearch on metro gauge inspection system based on laser-photogrammertric method,鈥? / Journal of Lanzhou Jiaotong University, 2013, 32(4): 5鈥?.
  6. S. Yin, B. Zhou, and C. Zhang, 鈥淎pplication of infrared imaging to monitor systems for driving safety in railways,鈥? / Journal of Southwest Jiaotong University, 1997, 32(5): 540鈥?45.
  7. Z. Wang and C. Yang, 鈥淐urrent status and development trend of monitoring systems for expressway tunnels,鈥? / Modern Tunneling Technology, 2009, 46(6): 8鈥?4.
  8. S. Zhong and Y. Huang, 鈥淎pplication and function discussion on long-term video monitoring system for railway,鈥? / Chinese Railway, 2008, (5): 45鈥?7.
  9. Research Institute of Highway Ministry of Transport, / Component of flexible system for protecting highway slope (JT/T 528-2004). Beijing: China Communications Press, 2004.
  10. Standard and Metrology Research Institute of the Ministry of Railway, / The flexible safety net for protection of slope along the line (TBT/T 3089-2004). Beijing: China Railway Publishing House, 2004.
  11. C. Zhang, 鈥淔iber Bragg grating intelligent perimeter security method and key technology research,鈥?Ph.D. dissertation, Wuhan University of Technology, China, 2013.
  12. A. Zhang, S. Gao, G. Yan, and Y. Baiet, 鈥淎dvances in optical fiber Bragg grating sensor technologies,鈥? / Photonic Sensors, 2012, 2(1): 1鈥?3. CrossRef
  13. C. Zhang, L. Wang, B. Lin, Y. Dai, and W. Gan, 鈥淎 novel invasion algorithm for FBG perimeter security system,鈥? / Journal of Optoelectronics路Laser, 2013, 24(6): 1138鈥?144.
  14. C. Zhang, L. Wang, B. Lin, Y. Dai, and W. Gan, 鈥淚dentical FBG vibration sensor for perimeter security system,鈥? / Semiconductor optoelectronics, 2013, 34(3): 516鈥?20.
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Chinese Library of Science
  Laser Technology and Physics and Photonics
  Microwaves, RF and Optical Engineering
  Measurement Science and Instrumentation
  Optics, Optoelectronics, Plasmonics and Optical Devices
  
• 出版者：University of Electronic Science and Technology of China, co-published with Springer
• ISSN：2190-7439

文摘

In order to realize working state remote monitoring for a passive net, alarm timely and correctly for the rockfall invasion, and solve the disadvantages in the existing means, such as needing power supply in situ, vulnerability to electromagnetic interference and environmental climate impact, a smart passive net structure based on the optical fiber sensing technology was designed which equipped with intercepting and sensing functions. The wire rope net as one part of the smart passive net was weaved with two kinds of optical fiber sensing elements, namely, fiber Bragg grating (FBG) perimeter severity sensors and optical fiber monitoring net with each end of the tail fiber containing an FBG probe. Based on the proposed smart structure, a combination alarm strategy for rockfall was proposed, which can distinguish transmission bug, whether the rockfall invasion or net broken occurs. Through a designed simulation test, the effectiveness of the proposed alarm strategy was certificated.