FDEM numerical modeling of failure mechanisms of anisotropic rock masses around deep tunnels
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 …
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 …
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 …
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 …
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 …
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 …
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 …
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 …
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 …
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
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 …
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
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 …
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 …
underground powerhouses due to excavation-induced unloading, which produces many …