Roof water inrush induced by fracture development in water‐isolating soil layers poses a severe hazard during the downward mining of shallow‐buried coal seam groups. Using Hanjiawan Coal Mine as the engineering case, this study systematically investigates fracture evolution mechanisms under the coupled effects of rep...
Tao Yang, Shu-Qi Zhang, Jie Zhang et al.· Energy Science & Enginee...· 0 citations
Using the No. 1513 return air roadway at Anyang Coal Mine as an engineering case, this study examines the instability mechanism and support control of three-soft coal-seam roadways. An integrated approach combining theoretical derivation, physical similarity modeling, and FLAC3D simulation was adopted to analyze fractu...
Tao Yang, Shu-Qi Zhang, Jie Zhang et al.· Applied Sciences· 0 citations
Ammonia sorbent design has been predominantly confined to porous materials, where uptake is governed by interactions within permanent voids. Here, we demonstrate a fundamentally distinct mechanism based on nonporous molecular crystals, in which ammonia capture proceeds via a proton‐coupled phase transformation. The nit...
Repeated mining of shallow-buried close-distance coal seams can disturb the fractured strata remaining in the goaf of the upper coal seam. Under gully terrain, mining disturbance is coupled with surface-relief effects, which may reactivate the overburden structure and induce dynamic strata-pressure behavior. In particu...
Jie Zhang, Yi-Ming Zhang, Tao Yang et al.· Applied Sciences· 1 citation
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