Scholarlink

<p>To improve its site accessibility, reduce the required sample size with minimal boundary effects, or model soil penetration by plant roots or earthworms, cone penetrometers of small sizes are widely used. This paper investigates the size-dependent tip resistance of small cone penetrometers (12, 6, and 3 mm in diameter) by performing a series of miniature cone penetration tests in dry silica sand samples and employing a size-dependent cavity expansion solution that considers nonlocal effects of strain gradient. It is shown that greater tip resistances are experienced by smaller cone penetrometers, and this size-dependent behavior reduces with decreases in sand relative density in the tests. The concerned size effect in cone tip resistance can be well captured by the proposed theoretical method.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Experimental and Theoretical Study on Size-Dependent Cone Tip Resistance in Sand

  • 期刊论文

  • 发表日期：

    2026年3月1日

查看全文
  • Chao Han,
  • Kai Zhang,
  • Xufeng Wang,
  • Yongfei Zhang,
  • Peizhi Zhuang

摘要

To improve its site accessibility, reduce the required sample size with minimal boundary effects, or model soil penetration by plant roots or earthworms, cone penetrometers of small sizes are widely used. This paper investigates the size-dependent tip resistance of small cone penetrometers (12, 6, and 3 mm in diameter) by performing a series of miniature cone penetration tests in dry silica sand samples and employing a size-dependent cavity expansion solution that considers nonlocal effects of strain gradient. It is shown that greater tip resistances are experienced by smaller cone penetrometers, and this size-dependent behavior reduces with decreases in sand relative density in the tests. The concerned size effect in cone tip resistance can be well captured by the proposed theoretical method.