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Dynamic responses and failure characteristics of the tunnel caused by rockburst: An entire process modelling from incubation to occurrence phases
K Ma, Y Peng, Z Liao, Z Wang - Computers and Geotechnics, 2024 - Elsevier
The rockburst has become one of the most serious and frequent disasters when the
underground activities go deeper. It can be essentially divided into incubation and …
underground activities go deeper. It can be essentially divided into incubation and …
Types and occurrence time of rockbursts in tunnel affected by geological conditions and drilling & blasting procedures
W Niu, XT Feng, Z Yao, X Bi, C Yang, L Hu… - Engineering …, 2022 - Elsevier
Rockburst is a difficult problem that restricts the development of deep rock mass engineering
technology, and the warning of rockburst occurrence time remain a common challenge …
technology, and the warning of rockburst occurrence time remain a common challenge …
[HTML][HTML] Rockburst criterion and evaluation method for potential rockburst pit depth considering excavation damage effect
J Dai, F Gong, L Xu - Journal of Rock Mechanics and Geotechnical …, 2024 - Elsevier
Excavation-induced disturbances in deep tunnels will lead to deterioration of rock properties
and formation of excavation damaged zone (EDZ). This excavation damage effect may affect …
and formation of excavation damaged zone (EDZ). This excavation damage effect may affect …
OpenMP parallel finite-discrete element method for modeling excavation support with rockbolt and grouting
Z Wang, F Li, G Mei - Rock Mechanics and Rock Engineering, 2024 - Springer
In the past, the number of CPU cores/threads was usually less than 8/16; now, the maximum
number is 128/256. As a CPU-based parallel method, OpenMP has an increasing …
number is 128/256. As a CPU-based parallel method, OpenMP has an increasing …
A novel anisotropic deterioration mechanical model for rock ductile–brittle failure under 3D high-stress and its application
Z Zheng, R Li, Q Zhang - Computers and Geotechnics, 2023 - Elsevier
After the excavation of deep underground engineering, the three-dimensional (3D) stress
state redistributes, leading to a significant change in the mechanical properties of the …
state redistributes, leading to a significant change in the mechanical properties of the …
[HTML][HTML] Modelling dynamic fracture and fragmentation of rocks under multiaxial coupled static and dynamic loads with a parallelised 3D FDEM
In this study, a three-dimensional (3D) combined finite-discrete element method (FDEM)
based simulator, which enables the robust simulation of full-scale triaxial Hopkinson bar (Tri …
based simulator, which enables the robust simulation of full-scale triaxial Hopkinson bar (Tri …
An updated Lagrangian framework with quadratic element formulations for FDEM
Y Lei, Q Liu, H Liu, Z Chu, P Liu, J Wen - Computers and Geotechnics, 2023 - Elsevier
In this study, quadratic element formulations (ie, ten-node tetrahedral elements and twelve-
node cohesive elements) are proposed to improve the computational accuracy of the three …
node cohesive elements) are proposed to improve the computational accuracy of the three …
A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method
C Ding, X Liang, R Yang, ZX Zhang, X Guo… - Mechanics of …, 2024 - Taylor & Francis
Considering the energy consumption of the crushed zone caused by blasting, the energy
dissipation characteristics were investigated through theoretical calculation and a plug-in for …
dissipation characteristics were investigated through theoretical calculation and a plug-in for …