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April 17, 2026Journal of Rock Mechanics and Geotechnical EngineeringOpen Access

Bedding effect on sandstone stability using three-point loading: Implication of Longyou Grottoes caves

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Authors

TWTie WangCYChengzeng YanHGHui Guo

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Overview

Investigates the impact of bedding on sandstone stability in Longyou Grottoes using finite-discrete element method.

Key Points

  • This research aims to evaluate how weak bedding planes affect the stability of bedded sandstone in underground caves.
  • Utilized Weibull-based finite-discrete element method for stability analysis.
  • Calibrated input parameters via laboratory tests on sandstone.
  • Developed numerical models to assess the effects of bedding parameters on stability.
  • Reduction of bedding strength correlates with significant decreases in bending strength.
  • Crack numbers reduce sharply as bedding strength increases from 0.1 to 0.3, then stabilize.
  • Bending strength varies with orientation, showing minimum at certain conditions.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/69e1ceaa5cdc762e9d857b62https://doi.org/10.1016/j.jrmge.2026.04.002
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