Experimental Research on the Physical and Mechanical Properties of Remolded Fine-Grained Debris-Flow Deposits
文献类型：期刊论文
| 作者 | Ran, Yuling; Jiang, Yu; He, Hongzhi; Zhou, Zhenhua |
| 刊名 | JOURNAL OF TESTING AND EVALUATION
 |
| 出版日期 | 2023-02-24 |
| ISSN号 | 0090-3973 |
| 关键词 | remolded soil particle gradation grey analysis method cohesion angle of internal friction |
| 英文摘要 | To make better use of debris-flow deposits, this paper adopts fine-grained debris-flow deposits (< 2 mm) sampled from Jiangjia Gully to constitute 17 gradation structures and determines the shear strength of the remolded structures at different moisture contents and vertical loads. Furthermore, the role and mechanism of each grain size interval in the remolded soils is discussed in depth. Grey correlation analysis is also introduced to evaluate the degree of influence of each factor on remolded structures. The results indicate that the difference in grain size distribution causes different physical and mechanical characteristics for remolded structures under different external conditions. The correlation degree of each influencing factor on the shear strength of remolded soil is ordered as follows: vertical load > moisture content > structural gradation. At different moisture contents, fine particles exert the greatest effect on the physical and mechanical characteristics of remolded soils, especially variation in the content of fine particles of less than 0.16 mm. At low moisture content, both fine particles and coarse particles facilitate the improvement of shear strength, and the increase in particle content in the range of 0.315-0.16 mm helps to enhance the mechanical properties of remolded structures. At high moisture content, the influence of the variation in intermediate particle content should be considered, especially the increase in particle content in the size range of 0.63-0.315 mm, which helps to improve the shear strength. The change in moisture content affects the cohesion of fine particles in the structures, and the change in vertical load shifts the contact form between particles in the structures, thereby affecting the internal frictional resistance and cohesion of remolded structures. The results obtained from this research are expected to provide a good basis for the reutilization of debris-flow deposits. |
| 学科主题 | Materials Science |
| 语种 | 英语 |
| 出版者 | AMER SOC TESTING MATERIALS |
| WOS记录号 | WOS:000954071900001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35417]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Northwest A&F University - China; 2.Baoshan University; 3.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS 4.Southwest Jiaotong University; |
| 推荐引用方式 GB/T 7714 | Ran, Yuling,Jiang, Yu,He, Hongzhi,et al. Experimental Research on the Physical and Mechanical Properties of Remolded Fine-Grained Debris-Flow Deposits[J]. JOURNAL OF TESTING AND EVALUATION,2023. |
| APA | Ran, Yuling,Jiang, Yu,He, Hongzhi,&Zhou, Zhenhua.(2023).Experimental Research on the Physical and Mechanical Properties of Remolded Fine-Grained Debris-Flow Deposits.JOURNAL OF TESTING AND EVALUATION. |
| MLA | Ran, Yuling,et al."Experimental Research on the Physical and Mechanical Properties of Remolded Fine-Grained Debris-Flow Deposits".JOURNAL OF TESTING AND EVALUATION (2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。