@inproceedings{01KVYT4AV3RGCZS95WR7YKD5Q6,
  abstract     = {{The cyclic resistance of sand is a critical characteristic for assessing the long-term performance of offshore foundations. In the field, the load-bearing capacity of a foundation can be weakened by cyclic loading from the environment, due to increases in excess pore water pressure and changes in particle arrangement. Previous studies have shown that the grading of sand can significantly influence soil behavior, including permeability, friction angle, dilation angle, and liquefaction resistance. However, there remains a lack of comprehensive research on how grading affects cyclic resistance under cyclic direct simple shear (CDSS) conditions, where shear stress is the primary focus. In this study, four uncrushable sand samples with distinct gradings were tested under constant-volume conditions and subjected to varying levels of cyclic shear stress. The investigation focused on their stress-strain responses, excess pore pressure evolution, and cyclic degradation behavior. These samples had different coefficients of uniformity (𝐶𝑢), ranging from well- graded to poorly graded, with particle size distributions conforming to fractal characteristics. Furthermore, the study quantified the influence of grading on the variability of CDSS results. The results show that increasing 𝐶𝑢 transforms cyclic response from loose-like to dense-like, delays pore pressure accumulation, and improves cyclic resistance, although the enhancement levels off when 𝐶𝑢 exceeds approximately 3.1. The variability of test results increases with 𝐶𝑢 up to 3.1 and decreases slightly thereafter. These findings provide valuable insights into the dynamic properties of sands with varying gradings under direct simple shear conditions and practical guidance for estimating cyclic resistance in offshore foundation design.}},
  articleno    = {{1925}},
  author       = {{Sun, Yue and Stuyts, Bruno and Haegeman, Wim}},
  booktitle    = {{Proceedings of the 21st International Conference on Soil Mechanics and Geotechnical Engineering}},
  isbn         = {{9783950389845}},
  keywords     = {{sand grading,cyclic direct simple shear,constant volume,coefficient of uniformity}},
  language     = {{eng}},
  location     = {{Vienna, Austria}},
  pages        = {{1925:6707--1925:6710}},
  title        = {{The effect of sand grading on cyclic resistance under direct simple shear}},
  url          = {{http://doi.org/10.53243/ICSMGE2026-1925}},
  year         = {{2026}},
}

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