[HTML][HTML] The use of discrete fracture networks for modelling coupled geomechanical and hydrological behaviour of fractured rocks

Q Lei, JP Latham, CF Tsang - Computers and Geotechnics, 2017 - Elsevier
We present a discussion of the state-of-the-art on the use of discrete fracture networks
(DFNs) for modelling geometrical characteristics, geomechanical evolution and …

Optimum spacing and rock breaking efficiency of TBM double disc cutters penetrating in water-soaked mudstone with FDEM

T Wang, C Yan, H Zheng, W Ke, S Ali - Tunnelling and Underground Space …, 2023 - Elsevier
Cutter spacing is one of the key factors affecting the rock breaking efficiency of Tunnel
Boring Machine (TBM). In the excavation of deep soft rock tunnels, the water content can …

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 …

[HTML][HTML] Predicting excavation damage zone depths in brittle rocks

MA Perras, MS Diederichs - Journal of Rock Mechanics and Geotechnical …, 2016 - Elsevier
During the construction of an underground excavation, damage occurs in the surrounding
rock mass due in large part to stress changes. While the predicted damage extent impacts …

A 2D, fully-coupled, hydro-mechanical, FDEM formulation for modelling fracturing processes in discontinuous, porous rock masses

A Lisjak, P Kaifosh, L He, BSA Tatone… - Computers and …, 2017 - Elsevier
This paper presents a new, fully-coupled, hydro-mechanical (HM) formulation for a finite-
discrete element method computer code. In the newly-developed, hydraulic solver, fluid flow …

Acceleration of a 2D/3D finite-discrete element code for geomechanical simulations using General Purpose GPU computing

A Lisjak, OK Mahabadi, L He, BSA Tatone… - Computers and …, 2018 - Elsevier
This paper presents a novel implementation of a hydro-mechanically coupled, finite-discrete
element method (FDEM) optimized to exploit the computing parallelism of graphics …

A 2D mixed fracture–pore seepage model and hydromechanical coupling for fractured porous media

C Yan, H Fan, D Huang, G Wang - Acta Geotechnica, 2021 - Springer
A novel two-dimensional mixed fracture–pore seepage model for fluid flow in fractured
porous media is presented based on the computational framework of finite-discrete element …

2D numerical analysis of rock damage induced by dynamic in-situ stress redistribution and blast loading in underground blasting excavation

JH Yang, C Yao, QH Jiang, WB Lu, SH Jiang - … and Underground Space …, 2017 - Elsevier
When underground cavities are created in initially stressed rock masses by the drill and
blast method, an unwanted excavation damage zone (EDZ) is induced around the cavities …

[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 …

A 2D fully coupled hydro-mechanical finite-discrete element model with real pore seepage for simulating the deformation and fracture of porous medium driven by fluid

C Yan, YY Jiao - Computers & Structures, 2018 - Elsevier
Based on the finite-discrete element method (FDEM), a 2D fully coupled model with real
pore seepage is proposed. This model can solve the problem of the deformation and …