Particle breakage mechanism and particle shape evolution of calcareous sand under impact loading
文献类型：期刊论文
| 作者 | Wang, Xing1,2; Wang, Ying3; Liao, Cheng1,2; Cui, Jie1,2; Shen, Jian-Hua4; Wang, Xin-Zhi4; Zhu, Chang-Qi4 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 81期号:9页码:- |
| 关键词 | Calcareous sand Impact loading Particle breakage Particle shape Number of impact tests Cumulative impact energy |
| ISSN号 | 1435-9529 |
| 英文摘要 | Exploring the meso-fabric characteristics of calcareous sand (CS) is of vital importance for predicting its macro-mechanical responses under impact loading. To reveal the particle breakage mechanism and particle shape evolution of CS under impact loading, multiple impact tests were conducted on CS under different numbers of impact tests (or cumulative impact energy levels). Screening tests and particle shape scanning tests were used to measure the particle gradation and shape of CS before and after impact testing, respectively. According to the results: (I) CS particles 2-5 mm in size showed the largest breakage extent with increasing number of impact tests. Breakoff and abrasion were the primary CS particle breakage modes under impact loading. (II) Particle size obtained from particle shape scanning tests was mostly smaller than that from sieving tests; and different measuring principles for these two tests and irregular particle shape of CS constituted the direct and essential cause of this result, respectively. (III) The relative change ratio of the particle shape parameter was proposed to quantify variations in CS particle shapes with increasing number of impact tests, and CS particle shapes became increasingly regular with increasing particle breakage. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000841772700001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35036]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510405, China 2.School of Civil Engineering, Guangzhou University, Guangzhou 510006, China 3.Chengdu Tuojiang River Basin Investment and Development Group Co., Ltd, Chengdu 610041, China 4.State Key Laboratory of Geotechnical Mechanics and Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
| 推荐引用方式 GB/T 7714 | Wang, Xing,Wang, Ying,Liao, Cheng,et al. Particle breakage mechanism and particle shape evolution of calcareous sand under impact loading[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2022,81(9):-. |
| APA | Wang, Xing.,Wang, Ying.,Liao, Cheng.,Cui, Jie.,Shen, Jian-Hua.,...&Zhu, Chang-Qi.(2022).Particle breakage mechanism and particle shape evolution of calcareous sand under impact loading.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,81(9),-. |
| MLA | Wang, Xing,et al."Particle breakage mechanism and particle shape evolution of calcareous sand under impact loading".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 81.9(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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