Results 41 to 50 of about 110 (106)

Numerical investigation of the path-dependent frost heave process in frozen rock under different freezing conditions

Journal of Rock Mechanics and Geotechnical Engineering
Frost heave in water-bearing rock masses poses significant threats to geotechnical engineering. This paper developed a novel three-dimensional (3D) frost model, based on the combined finite-discrete element method (FDEM), to investigate the frost heave ...
Lei Sun, Xuhai Tang, Brant Zeeman, Quansheng Liu, Giovanni Grasselli   +4 more
doaj   +1 more source

Insights of microstructures and lithofacies on fracture process zone of organic-rich shale

Rock Mechanics Bulletin
The fracture process zone (FPZ) plays a critical role in determining the mechanical properties of shale,as a quasi-brittle material. In this study, the effects of microstructure on fracture process zones of Carbonate Dominated (CD) shale and Quartz ...
Shenjian Li, Mao Sheng, Chao Deng, Shizhong Cheng, Zhiwei Wang, Yiwen Xu, Peng Xu, Shouceng Tian, Gensheng Li   +8 more
doaj   +1 more source

Investigation of stress-induced progressive failure of mine pillars using a Voronoi grain-based breakable block model

International Journal of Mining Science and Technology
The Voronoi grain-based breakable block model (VGBBM) based on the combined finite-discrete element method (FDEM) was proposed to explicitly characterize the failure mechanism and predict the deformation behavior of hard-rock mine pillars.
Shili Qiu, Shirui Zhang, Quan Jiang, Shaojun Li, Hao Zhang, Qiankuan Wang   +5 more
doaj   +1 more source

Mechanical-acoustic-optical combined characterization for uniaxial compression failure of soft-hard interbedded rock-like material

Journal of Materials Research and Technology
The interbedded structures and soft-hard rock interfaces within soft-hard interbedded rock mass (SHIRM) lead to complex mechanical behaviors and failure modes, which pose significant safety challenges for tunnel construction.
Jiaqi Guo, Yue Li, Zheng Wang, Jianxun Chen, Chong Xu   +4 more
doaj   +1 more source

Experimental and numerical study on rock burst triggering mechanism via spatiotemporal evolution of stress flow

Meitan kexue jishu
To address the prevention and control of rock burst disasters in deep coal mines, this study focuses on the spatiotemporal evolution mechanism of mining-induced stress, introducing the novel concept of “stress flow” to characterize dynamic stress ...
Chi LIU, Xingyu JIANG, Haitao LI, Pengyu MU, Huaguang LIU, Honghui YUAN, Qingxin QI, Shouguang WANG   +7 more
doaj   +1 more source

An efficient 3D cell-based discrete fracture-matrix flow model for digitally captured fracture networks. [PDF]

Int J Coal Sci Technol, 2023
Sun L, Li M, Abdelaziz A, Tang X, Liu Q, Grasselli G.   +5 more
europepmc   +1 more source

Propagation and complex morphology of hydraulic fractures in lamellar shales based on finite-discrete element modeling

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
We explore the controls of stress magnitude and orientation relative to bedding on the resulting morphology/topology of hydraulic fractures using a combined finite-discrete element method (FDEM).
Mengyao Wang, Quan Gan, Tao Wang, Yueqiang Ma, Chengzeng Yan, Philip Benson, Xiaoguang Wang, Derek Elsworth   +7 more
doaj   +1 more source

Inversion study on elastic-plastic material parameters of red sandstone in uniaxial compression test. [PDF]

Sci Rep, 2023
Wu J, Yang X, Song Y, Liu S, Li S, Liu J.   +5 more
europepmc   +1 more source

Investigation of Damage Evolution in Heterogeneous Rock Based on the Grain-Based Finite-Discrete Element Model. [PDF]

Materials (Basel), 2021
Zhang S, Qiu S, Kou P, Li S, Li P, Yan S.   +5 more
europepmc   +1 more source

Predicting fault slip via transfer learning. [PDF]

Nat Commun, 2021
Wang K, Johnson CW, Bennett KC, Johnson PA.   +3 more
europepmc   +1 more source