Stability analysis of crown pillar under the zone of relaxation around sub-level open stopes using numerical modelling

VB Guggari, H Kumar, G Budi - Geomatics, Natural Hazards and …, 2023 - Taylor & Francis
The stability of stopes and pillars is a critical concern in deep underground metal mining due
to the potential for stress concentration and relaxation that can cause the dynamic failure of …

[HTML][HTML] Stability analysis of tunnel under coal seam goaf: Numerical and physical modeling

F Huang, X Shi, C Wu, G Dong, X Liu, A Zheng - Underground Space, 2023 - Elsevier
The goaf formed by coal seam mining would dramatically reduce the strength and stiffness
of the ground in and around the goaf, which is not conducive to tunnel excavation near the …

Indirect measurement of the elastic modulus of intact rocks using the Mamdani fuzzy inference system

M Rezaei - Measurement, 2018 - Elsevier
Elastic modulus of intact rocks (E) is one of the most important parameters in the initial and
final design of rock engineering projects. Laboratory measurements of E require the high …

Rock burst mechanism induced by stress anomaly in roof thickness variation zone: a case study

X Bai, A Cao, W Cai, Y Wen, Y Liu… - … , Natural Hazards and …, 2022 - Taylor & Francis
The variation of hard roof thickness is an essential contributor in triggering rock bursts during
longwall mining. Case analysis and numerical modeling were used to study the stress and …

Forecasting the stress concentration coefficient around the mined panel using soft computing methodology

M Rezaei - Engineering with Computers, 2019 - Springer
Stress analysis around the mined panel is one of the most critical topics in longwall mining
for stability analysis of surrounding pillars and access tunnels. Actually, stress redistribution …

Assessment of plastic zones surrounding the power station cavern using numerical, fuzzy and statistical models

M Rezaei, M Rajabi - Engineering with Computers, 2021 - Springer
Plastic zones evaluation around the powerhouse caverns is a very crucial issue in designing
and constructing these structures and accurate determination of their related optimum …

Assessment of the strength deterioration of a coal pillar using a strain-softening time-dependent constitutive model

PR Gadepaka, A Jaiswal - Mechanics of Time-Dependent Materials, 2024 - Springer
In this study, a time-dependent constitutive model of a coal pillar was developed using the
Hoek–Brown strain-softening model, which is useful for studying the strength deterioration of …

Improved determination of the S-wave velocity of rocks in dry and saturated conditions: Application of machine-learning algorithms

M Rezaei, SR Ahmadi, H Nguyen… - Transportation …, 2024 - Elsevier
The determination of S-wave velocity (V s) is of significant importance in various engineering
disciplines, including mining, civil, and geotechnical engineering. It is beneficial to indirectly …

Comparative study of five machine learning algorithms on prediction of the height of the water-conducting fractured zone in undersea mining

Z Wu, Y Chen, D Luo - Scientific Reports, 2024 - nature.com
Prediction of water-conducting fractured zone (WCFZ) of mine overburden is the premise for
reducing or eliminating water inrush hazards in undersea mining. To obtain a more robust …

Assessment of effect of rock properties on horizontal drilling rate in marble quarry mining: field and experimental studies

M Rezaei, N Nyazyan - Journal of Mining and Environment, 2023 - jme.shahroodut.ac.ir
Rock drilling is one of the most important processes in the mining operations, which involves
high costs. Deep knowledge of the drilling conditions and rock mass properties can help the …