Distributed optical fiber sensing and applications based on large-scale fiber Bragg grating array

X Gui, Z Li, X Fu, H Guo, Y Wang… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
To achieve data-driven intelligence in engineering applications, the key requirements for
distributed optical fiber sensor networks are large capacity, long distance, dense distribution …

Experimental study and resilience modeling for prefabricated hollow diaphragm walls of full-assembled underground stations under urban multi-disturbance …

T Qiu, X Sun, X Chen, D Su, J Zhang, Z Xu… - … and Underground Space …, 2023 - Elsevier
A full-assembled underground station (FUS) using a prefabricated enclosure structure and
prefabricated main structure was constructed for the first time in the Shenzhen Metro. The …

Fiber-optic wireless sensor network using ultra-weak fiber Bragg gratings for vertical subsurface deformation monitoring

SP Liu, B Shi, K Gu, CC Zhang, JH He, JH Wu, GQ Wei - Natural Hazards, 2021 - Springer
The determination of subsurface deformation is critical to understanding the subsurface
dynamic processes, but most of conventional monitoring methods still have challenges in …

Galloping vibration monitoring of overhead transmission lines by chirped FBG array

Q Yan, C Zhou, X Feng, C Deng, W Hu, Y Xu - Photonic Sensors, 2022 - Springer
A distributed online fiber sensing system based on the phase-sensitive optical time domain
reflectometer (Φ-OTDR) enhanced by the drawing tower fiber Bragg grating (FBG) array is …

A method for monitoring the uneven settlement of shield tunnels considering the flattening effect using distributed strain data measured from BOTDA sensors

Z Zhou, X Ma, Y Liu, H Li - Structural Health Monitoring, 2024 - journals.sagepub.com
When investigating the uneven settlement monitoring of shield tunnels, the influence of the
flattening effect under longitudinal bending is rarely considered, which leads to inaccurate …

Life cycle monitoring of offshore steel pipe piles via UWFBG Wireless sensor network

J Wu, S Xu, L Qi, Z Meng, L Jia - Structural Control and Health …, 2023 - Wiley Online Library
Monitoring the stress and deformation state of offshore steel pipe piles is very necessary for
complex ocean environments. However, challenges still remain in remotely capturing …

Research on weak vibration characteristics based on EMD and design of MZI classifier

H Feng, M Wang, Z Sha, L Du… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Weak vibration identification is one of the key challenges in the field of pipeline safety
warning using distributed fiber optic sensor. In this paper, we proposed a novel algorithm …

Online long-distance monitoring of subway vibration reduction effect using ultra-weak fiber Bragg grating arrays

F Liu, B Xu, H Wang, J Jiang, S Li, Z Li - Measurement, 2023 - Elsevier
Monitoring the subway vibration reduction effect is vital since subway train-induced vibration
brings great damage and distress to the buildings and residents along the metro line. To …

Application of ultra-weak FBG technology in real-time monitoring of landslide shear displacement

H Han, B Shi, CC Zhang, H Sang, X Huang, G Wei - Acta Geotechnica, 2023 - Springer
Real-time monitoring of landslide shear displacements is important for early warning of
landslide hazards. However, distributed and real-time monitoring of landslide displacements …

Incremental learning model for dynamical identification and classification of abnormal vibration in operational underground facilities

F Chai, B Zhou, X Xie, Z Zhang, C Wang - Tunnelling and Underground …, 2023 - Elsevier
Underground infrastructures are rapidly growing in size and complexity. However, their
operations are affected by several hazards, including hidden structural deterioration and …