Percussion-based bolt looseness monitoring using intrinsic multiscale entropy analysis and BP neural network

R Yuan, Y Lv, Q Kong, G Song - Smart Materials and Structures, 2019 - iopscience.iop.org
In this paper, a novel percussion-based bolt looseness monitoring approach using intrinsic
multiscale entropy analysis and back propagation (BP) neural network is proposed. 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 …

Numerical implementation of rock bolts with yield and fracture behaviour under tensile-shear load

B Sun, Q Liu, W Li, X Yang, B Yang, T Li - Engineering Failure Analysis, 2022 - Elsevier
To realize the numerical analysis of rock bolt bearing-yield-fracture under tension-shear
coupling and to provide an effective means for supporting the design of roadways or tunnels …

[HTML][HTML] Effect of rock bolt support mechanism on tunnel deformation in jointed rockmass: a numerical approach

R Das, TN Singh - Underground Space, 2021 - Elsevier
A parametric study was conducted to determine the influence of different bolt parameters
(bolt length and diameter) on the maximum induced boundary displacements in jointed …

[HTML][HTML] Utilizing a novel fiber optic technology to capture the axial responses of fully grouted rock bolts

N Vlachopoulos, D Cruz, B Forbes - Journal of Rock Mechanics and …, 2018 - Elsevier
Rock bolts are one of the primary support systems utilized in underground excavations
within the civil and mining engineering industries. Rock bolts support the weakened rock …

[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 …

Mechanical testing and numerical simulation of intelligent terminal structure of rockbolt used as a deformable support and for safety monitoring in rock engineering

H Sun, H Liu, X Liu, Z Ye - Tunnelling and Underground Space Technology, 2024 - Elsevier
The nonlinear mechanical behavior perception and deformation control of engineering rock
masses are crucial technical challenges in the fields of underground engineering support …

A review of rockburst: Insights from engineering sites to theoretical investigations

B He, B Wang, X Feng, H Zhang, Z Jin - Journal of Central South University, 2024 - Springer
Rockburst has perennially posed a formidable challenge to the stability of underground
engineering works, particularly under conditions of deep-seated high stress. This paper …

[HTML][HTML] A hardening load transfer function for rock bolts and its calibration using distributed fiber optic sensing

A Klar, O Nissim, I Elkayam - Journal of Rock Mechanics and Geotechnical …, 2023 - Elsevier
Confinement of rock bolts by the surrounding rock formation has long been recognized as a
positive contributor to the pull-out behavior, yet only a few experimental works and analytical …

[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 …