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August 15, 2025ProcessesOpen Access

Characteristics of Load-Bearing Rupture of Rock–Coal Assemblages with Different Height Ratios and Multivariate Energy Spatiotemporal Evolution Laws

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Authors

BWBo WangGWGuilin WuGFGuorui Feng

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Overview

Simulation reveals energy characteristics and rupture patterns in rock-coal structures, indicating critical design considerations.

Key Points

  • The total number of cracks decreases as the height ratio increases, with greater tensile crack prevalence.
  • Energy accumulation transfers from coal to rock when the height ratio exceeds 1.5, signaling critical structural changes.
  • Uniaxial compression simulations clarify crack dispersion patterns and energy evolution characteristics during different load phases.
  • Acoustic emission ringing counts were not synchronized with bearing stress, peaking later in the damage stage at higher height ratios.

Cite This Study

Wang et al. (2025) studied this question.

synapsesocial.com/papers/68af509bad7bf08b1ead8724https://doi.org/10.3390/pr13082588
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  4. 4Failure analysis of coal–rock composites with different coal thicknesses under uniaxial loading based on resistivity response and damage evolution2026
  5. 5Damage Evolution Characteristics and Constitutive Model for Coal and Rock under Asymmetric Loading2024 · 3 citations