期刊
GEOTECHNIQUE LETTERS
卷 8, 期 1, 页码 61-65出版社
ICE PUBLISHING
DOI: 10.1680/jgele.17.00155
关键词
laboratory tests; particle crushing/crushability; particle-scale behaviour
资金
- Research Grants Council of the Hong Kong Special Administrative Region, China [CityU 8779012]
Single-particle uniaxial compression tests are generally conducted for sands by compressing a grain between two flat platens. However, previous work has shown that due to the complex morphology of natural sands the nature of their contacts with the loading platens can influence their strength. A custom-built apparatus was therefore built to apply point loading to sand particles. Using a high-speed camera, typical failure modes were observed, which showed less variability than those seen in platenmounted tests with most undergoing some form of splitting. The particle strength under point loading also tended to be lower than for platen loading, and again with less variability. If the point-loading tests were compared with platen-loading tests for a similar splitting breakage mode, then the strength distributions were very similar. A possible explanation is that the platen-loading tests that underwent a splitting failure were the more angular particles, and so the effect of stress concentration might be similar to that for the point-loading tests.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据