[HTML][HTML] Probabilistic analysis of tunnel face seismic stability in layered rock masses using polynomial Chaos Kriging metamodel

J Man, T Zhang, H Huang, D Dias - Journal of Rock Mechanics and …, 2024 - Elsevier
Face stability is an essential issue in tunnel design and construction. Layered rock masses
are typical and ubiquitous; uncertainties in rock properties always exist. In view of this, a …

Crack development and damage patterns under combined dynamic-static loading of parallel double fractured rocks based on DIC technique

L Zhang, Z Zhang, Y Chen, B Dai, B Wang - Acta geotechnica, 2023 - Springer
In this paper, the combined static-dynamic loading tests on refabricated parallel fissured
granite were conducted with SHPB system at six confining pressures (0, 10, 20, 30, 50, and …

Estimation of the Poisson's Ratio of the Rock Mass

S Narimani, SM Davarpanah, B Vásárhelyi - Periodica Polytechnica Civil …, 2024 - pp.bme.hu
The value of Poisson's ratio is a crucial parameter in rock mechanics and engineering for
both intact rock and rock mass. Poisson's ratio has not gotten the attention it merits …

Relation between the sliding friction angle of rock joints and the friction angle of intact cores at the brittle-ductile transition: An experimental study

A Tsikrikis, V Marinos, T Papaliangas - Bulletin of Engineering Geology …, 2024 - Springer
The sliding friction angle is a fundamental mechanical property both for intact and jointed
rocks. The aim of this paper is to compare the value of sliding friction angle obtained from …

Influence of rock heterogeneity on the correlation between uniaxial compressive strength and Brazilian tensile strength

FM Kong, M Han, YT Zhao, H Lu, S Liu, P Luan… - Scientific Reports, 2025 - nature.com
To offer guidance for using Brazilian tensile strength (BTS) to estimate UCS of
heterogeneous rocks, this study uses sandstone (fine or coarse grain) and gneiss (0°, 45° …

[HTML][HTML] Modeling Brittle-to-Ductile Transitions in Rock Masses: Integrating the Geological Strength Index with the Hoek–Brown Criterion

B Vásárhelyi, S Narimani, SM Davarpanah… - Applied Mechanics, 2024 - mdpi.com
Many studies focus on brittle–ductile transition stress in intact rocks; however, in real life, we
deal with rock mass which contains many discontinuities. To fill this gap, this research …

Study on the size effect of rock burst tendency of red sandstone under uniaxial compression

F Chen, J Du, J Lv, C Tang, Y Pan - Scientific Reports, 2024 - nature.com
The study of rock burst tendency of rock masses with different sizes plays a key role in the
prevention of rock burst. Through theoretical analysis, it is proposed that uniaxial …

Employing frictional parameters in estimating the Hoek-Brown constant mi for intact rocks

A Tsikrikis, V Marinos, T Papaliangas - Bulletin of Engineering Geology …, 2024 - Springer
An important parameter of the Hoek-Brown failure criterion for intact rock materials is mi, a
dimensionless material constant that depends on the frictional characteristics of the …

Review on the mechanical properties of frozen rocks

SM Davarpanah, Á Török, B Vásárhelyi - Rudarsko-geološko-naftni …, 2022 - hrcak.srce.hr
The freezing technique has been employed for a long time to strengthen the mechanical
properties of intact rock and rock mass; however, it has not received as much attention as it …

A new internal friction angle–based approach for estimating Hoek–Brown constant mi and its comparison with those estimated from some current methods

H Karakul, R Ulusay - Bulletin of Engineering Geology and the …, 2022 - Springer
One of the two independent key parameters of the Hoek–Brown failure criterion, mi, is
calculated using 3-axial test data consisting of at least five major and minor principal …