The load-bearing and damage characteristics of coal seams vary under different geological conditions. To investigate the failure characteristics of coal bodies under hard roof conditions, this study is set against the backdrop of the Zhangji Coal Mine's 11,129 work face. By employing a combination of physical exper...
Deep large-section coal-rock chambers are prone to deformation and instability disasters induced by composite structural effects. To reveal the surrounding-rock deformation-failure mechanism of deep coal-rock chambers, this paper performs a dual-scale comparative study of laboratory specimens and chamber surrounding...
Tunnel excavation in fair rock masses presents significant challenges due to complex stress redistribution and deformation mechanisms. This study develops and validates a full-scale three-dimensional finite element (3D FEM) model of a road tunnel excavated in fair blocky limestone in eastern Egypt using ABAQUS/CAE 2019...
Tight reservoirs commonly exhibit low permeability and pronounced lithological heterogeneity, resulting in complex interactions among far-field stress, local structural weakness, and fluid-driven fracture propagation. In this study, four non-replicated 2 m × 2 m × 1 m physical-model specimens representing tight gluteni...
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