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- W3105986048 abstract "This study proposes a and concept of cutting cantilever based on the technical principle of gob-side entry retaining in a non-pillar. A mechanical structure model of the small concept of cutting cantilever is established by analyzing the stress transfer mechanism of the overlying strata in the gob-side entry. The calculation formula of the roof sinking is derived. The deformation law of the surrounding rock and the roof subsidence characteristics in the structure are studied using a numerical analysis method. Moreover, the surface displacement curve is obtained by combination with the field measurement. The results show that the cutting structural plane generated by pre-splitting blasting effectively changes the stress transfer between the roof of the gob-side entry and the working face, which is beneficial to the rapid formation of the large structure with a self-stabilization bearing. The deformation of the surrounding rock of a small roadway is significantly controlled and combined with the rigid support system comprising constant-resistance and large-deformation anchor cables, gangue prevention structures, and a pier-beam unit. The gangues in the goaf interact with the large and structures formed by the surrounding rock of the gob-side entry retaining, thereby forming a synergistic support structure for effectively increasing roadway stability." @default.
- W3105986048 created "2020-11-23" @default.
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- W3105986048 date "2020-11-12" @default.
- W3105986048 modified "2023-10-17" @default.
- W3105986048 title "Surrounding rock deformation and supporting measures on small structure in non-pillar mining with gob-side entry retaining" @default.
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- W3105986048 doi "https://doi.org/10.1088/1755-1315/570/5/052007" @default.
- W3105986048 hasPublicationYear "2020" @default.
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