Performance monitoring of a curved shield tunnel during adjacent excavations using a fiber optic nervous sensing system

HH Zhu, DY Wang, B Shi, X Wang, GQ Wei - Tunnelling and Underground …, 2022 - Elsevier
With the accelerated urbanization and population growth in the Yangtze River Delta of
China, numerous metro tunnels are in operation or under construction, and adjacent deep …

Anchorage performance of a modified cable anchor subjected to different joint opening conditions

J Chen, P Liu, L Liu, B Zeng, H Zhao, C Zhang… - … and Building Materials, 2022 - Elsevier
In tunnelling engineering, the cable anchor is usually used to reinforce the surrounding rock
mass. Site observation shows that the cable anchor may be subjected to different joint …

Roof fall hazard monitoring and evaluation—State-of-the-art review

K Fuławka, L Stolecki, M Szumny, W Pytel… - Energies, 2022 - mdpi.com
A roof fall hazard is still one of the major threats in the underground mining industry. Each
such type of event always brings great risk to miners and causes serious interruptions in the …

[HTML][HTML] Advances in fibre-optic-based slope reinforcement monitoring: A review

A Acharya, T Kogure - Journal of Rock Mechanics and Geotechnical …, 2024 - Elsevier
Real-time assessment of slope reinforcements to diagnose their state in all stages of service
life is imperative for prompt evaluation of slope stability and establishing an efficient early …

[HTML][HTML] Large-scale laboratory investigation of pillar-support interaction

A Chaurasia, G Walton, S Sinha, TJ Batchler… - Journal of Rock …, 2024 - Elsevier
Underground mine pillars provide natural stability to the mine area, allowing safe operations
for workers and machinery. Extensive prior research has been conducted to understand …

[HTML][HTML] An in situ monitoring campaign of a hard rock pillar at great depth within a Canadian mine

B Forbes, N Vlachopoulos, MS Diederichs… - Journal of Rock …, 2020 - Elsevier
A recent research campaign at a Canadian nickel-copper mine involved instrumenting a
hard rock sill drift pillar with an array of multi-point rod extensometers, distributed optical …

Experimental evaluation of precise monitoring of multi-scale deformation failure of rock mass based on distributed optical fiber

J Chai, Y Ouyang, J Liu, D Zhang, W Du - Measurement, 2022 - Elsevier
To realize the precise monitoring of multi-scale deformation and failure of rock mass by
distributed optical fiber, the mechanical model of optical fiber and rock strata is established …

Augmenting the in-situ rock bolt pull test with distributed optical fiber strain sensing

B Forbes, N Vlachopoulos, MS Diederichs… - International Journal of …, 2020 - Elsevier
A high spatial resolution distributed optical fiber strain sensing technology is demonstrated
to advance the assessment of support element behaviour during in-situ pull tests. A …

Comparative analysis of anchor cables in pullout tests using distributed fiber optic sensors

W Chen, C Hong, X Chen, G Luo… - Canadian Geotechnical …, 2023 - cdnsciencepub.com
The interaction mechanism between grouted anchor cables and the surrounding rock mass
or soil are complicated and difficult to investigate using conventional monitoring …

In-situ load testing of a WWII era timber Warren truss in the development of a structural health monitoring program

H Helmer-Smith, N Vlachopoulos, MA Dagenais… - Engineering …, 2021 - Elsevier
This research paper presents the experimental results of an in-situ load-testing program
within a WWII era, timber Warren truss structure located at Canadian Forces Base St-Jean …