Results 31 to 40 of about 110 (106)

Numerical analyses of pillar behavior with variation in yield criterion, dilatancy, rock heterogeneity and length to width ratio

Journal of Rock Mechanics and Geotechnical Engineering, 2019
With recent advances in numerical modeling, design of underground structures increasingly relies on numerical modeling-based analysis approaches. While modeling tools like the discrete element method (DEM) and the combined finite-discrete element method (
Sankhaneel Sinha, Gabriel Walton
doaj   +1 more source

Applying FDEM for Blasting Fragmentation of Jointed Rock Mass

Applied Sciences
The combined finite–discrete element method (FDEM) is an advanced numerical calculation method that is highly suitable for simulating the entire rock blasting process.
Chenyu Xu, Jinshan Sun, Gengquan Li, Rui Nie, Yingguo Hu   +4 more
doaj   +1 more source

Study on Dynamic Evolution of the Landslide–Anchorage Structure System Under Earthquake with the Combined Finite–Discrete Element Method

Applied Sciences
The landslides caused by slope instability are very harmful and have a destructive effect on existing engineering structures such as tunnels, bridges, and houses.
Chenyu Xu, Yingguo Hu, Genquan Li, Chenyang Ma, Meishan Liu   +4 more
doaj   +1 more source

Anisotropic shearing mechanism of Kangding slate: Experimental investigation and numerical analysis

Journal of Rock Mechanics and Geotechnical Engineering
The shear mechanical behavior is regarded as an essential factor affecting the stability of the surrounding rocks in underground engineering. The shear strength and failure mechanisms of layered rock are significantly affected by the foliation angles ...
Ping Liu, Quansheng Liu, Penghai Deng, Yucong Pan, Yiming Lei, Chenglei Du, Xianqi Xie   +6 more
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Predicting Stick-Slips in Sheared Granular Fault Using Machine Learning Optimized Dense Fault Dynamics Data

Journal of Marine Science and Engineering
Predicting earthquakes through reasonable methods can significantly reduce the damage caused by secondary disasters such as tsunamis. Recently, machine learning (ML) approaches have been employed to predict laboratory earthquakes using stick-slip ...
Weihan Huang, Ke Gao, Yu Feng
doaj   +1 more source

Numerical Analysis of Anisotropic Influence of Mode-I Fracture Toughness under Dynamic Loading for Rock using GPGPU-based Three-Dimensional Combined Finite-Discrete Element Method (FDEM)

IOP Conference Series: Earth and Environmental Science, 2021
G.J. Min, D. Fukuda, S.W. Oh, Y. Nara, H. Liu, S.H. Cho   +5 more
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Mesoscale numerical study of size effect on concrete fracture characteristics based on FDEM

Electronic Journal of Structural Engineering
Fracture characteristics of concrete remains a focal point of current research. Traditional experimental approaches and finite element simulations face limitations in the study of concrete's fracture behavior.
Yamin Wu, Tuanjie Wang, Junfeng Duan, Lei Song   +3 more
doaj  

A Methodology for Assessing the Impact of In Situ Fractures on the Intensity of Blast-Induced Damage

Mining
Drilling and blasting is the conventional method used for rock fragmentation in open pit mining. Blast-induced damage can reduce the level of stability of benches and pit slopes.
Omid Karimi, Marie-Helene Fillion, Philip Dirige   +2 more
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Numerical simulation of multiple hydraulic fracture propagation in heterogeneous coal reservoirs based on combined finite-discrete element method

Frontiers in Earth Science
Multi-stage fracturing in Horizontal well increases the permeability of coalbed methane by generating multiple fractures. However, the heterogeneity of coal reservoirs is a crucial factor that cannot be ignored in the study of multiple hydraulic fracture
Binwei Xia, Xingguo Zhang, Zikun Ma, Xinqin Xu   +3 more
doaj   +1 more source

Mechanical Properties and Failure Mechanisms of Layered Coal-Rock Combinations Under Different Confining Pressures and Thickness Ratios: A 3D FDEM-Based Numerical Simulation Study

Eng
Clarifying the mechanical properties and failure patterns of layered coal–rock combinations in coal-measure strata is critical to guiding hydraulic fracturing design in petroleum and mining engineering.
Richao Cong, Yanjun Feng, Shizhong Cheng, Penghao Lin, Xiaoguang Shang   +4 more
doaj   +1 more source