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To elucidate the impact of wet-dry cycles on red sandstone in the Ordos region, experiments were conducted using a servo-hydraulic machine. Parameters such as uniaxial compressive strength, elastic modulus, strain corresponding to peak stress, and Poisson’s ratio were evaluated across various cycles. The study reveals a significant decline in uniaxial compressive strength, elastic modulus, and peak strain of red sandstone under wet-dry cycling. However, the effect on Poisson’s ratio remains minor. The findings provide valuable insights for engineering design and slope failure mechanism research.

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Experimental Study on Water–Rock Coupling of Red Sandstone

  • 会议论文

  • 发表日期：

    2025年

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  • Juntao Zhu,
  • Xiangmei Chen,
  • Yongqiang Ren,
  • Qi Liu,
  • Zhihui Mi,
  • Yingchun He,
  • Wenlong Cao

摘要

To elucidate the impact of wet-dry cycles on red sandstone in the Ordos region, experiments were conducted using a servo-hydraulic machine. Parameters such as uniaxial compressive strength, elastic modulus, strain corresponding to peak stress, and Poisson’s ratio were evaluated across various cycles. The study reveals a significant decline in uniaxial compressive strength, elastic modulus, and peak strain of red sandstone under wet-dry cycling. However, the effect on Poisson’s ratio remains minor. The findings provide valuable insights for engineering design and slope failure mechanism research.