FDEM numerical modeling of failure mechanisms of anisotropic rock masses around deep tunnels

P Deng, Q Liu, X Huang, Y Pan, J Wu - Computers and Geotechnics, 2022 - Elsevier
The failure mechanism and failure mode of anisotropic rock masses are very different from
those of isotropic rock masses. For unsupported tunnels, the failure modes of anisotropic …

Analysis of thermo-mechanical damage around tunnel and deposition boreholes of an underground nuclear waste disposal facility at the Forsmark site (Sweden) by …

A Lisjak, O Mahabadi, J Ha, DM Ivars - International Journal of Rock …, 2023 - Elsevier
This study focuses on rock damage potentially developing in the near-field of a planned
underground nuclear waste repository at the Forsmark site (Sweden). In hard, crystalline …

A FDEM based 3D discrete mixed seepage model for simulating fluid driven fracturing

C Yan, Y Gao, H Guo - Engineering Analysis with Boundary Elements, 2022 - Elsevier
This paper presents a 3D discrete mixed seepage model that considers the effect of fracture
on pore seepage. We unify the 3D fracture-pore mixed seepage model and finite-discrete …

[HTML][HTML] Assessing fracturing mechanisms and evolution of excavation damaged zone of tunnels in interlocked rock masses at high stresses using a finite-discrete …

I Vazaios, N Vlachopoulos, MS Diederichs - Journal of Rock Mechanics …, 2019 - Elsevier
Deep underground excavations within hard rocks can result in damage to the surrounding
rock mass mostly due to redistribution of stresses. Especially within rock masses with non …

Acquisition of normal contact stiffness and its influence on rock crack propagation for the combined finite-discrete element method (FDEM)

P Deng, Q Liu, X Huang, Q Liu, H Ma, W Li - Engineering Fracture …, 2021 - Elsevier
The combined finite-discrete element method (FDEM) has been widely used in numerical
studies in the fields of rock mechanics and geotechnical engineering. The normal contact …

Experimental study and mechanism analysis on the effects of biaxial in-situ stress on hard rock blasting

G Yan, F Zhang, T Ku, Q Hao, J Peng - Rock Mechanics and Rock …, 2023 - Springer
Drill and blast method is widely applied in deep rock engineering, and the in-situ stress
poses a great challenge to blasting excavation. The failure mechanism of rock under …

A numerical investigation of element size and loading/unloading rate for intact rock in laboratory-scale and field-scale based on the combined finite-discrete element …

Q Liu, P Deng - Engineering Fracture Mechanics, 2019 - Elsevier
The combined finite-discrete element method (FDEM) is extensively employed to model
rocks and rock-like materials, in which calibration against the results from uniaxial/triaxial …

A novel rockbolt formulation for a GPU-accelerated, finite-discrete element method code and its application to underground excavations

A Lisjak, T Young-Schultz, B Li, L He… - International Journal of …, 2020 - Elsevier
Rockbolting is widely used in civil and mining engineering to increase the inherent strength
of the rock mass and reduce deformations around underground excavations. Rockbolt …

Simulation of brittle failure around Canada's mine-by experiment tunnel using 2D continuum-based Voronoi tessellated models

S Sanipour, N Bahrani, A Corkum - Rock Mechanics and Rock …, 2022 - Springer
The failure process of brittle rocks under compression involves the initiation, accumulation
and propagation of tensile fractures before peak stress is reached. This process is …

Experimental investigation on splitting failure of high sidewall cavern under three-dimensional high in-situ stress

Q Zhang, F Li, K Duan, G Yu, L Cheng, X Guo - … and Underground Space …, 2021 - Elsevier
In strata under high in-situ stress, engineering disasters often occur in high sidewalls of
underground powerhouses due to excavation-induced unloading, which produces many …