| The motion mechanism of a boulder transported by landslide | |
Shi CQ(石传奇)1,2 ; Jiao, Jiajun3; Sun, Yunhui3,4; Wang, Xiaoliang3; Liu, Qingquan3; Liu, Haoran1
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| Corresponding Author | Liu, Haoran([email protected]) |
| Source Publication | PHYSICS OF FLUIDS
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| 2024-12-01 | |
| Volume | 36Issue:12Pages:12 |
| ISSN | 1070-6631 |
| Abstract | Various soil-rock mixed landslides occur in the natural environment. Carried along in the slide, boulders will eventually come to rest. The origin of boulder motion provides crucial constraints for inferring geological events. To overcome the challenges posed by the limited visibility within landslides and the subsequent difficulty in observing boulder motion, we propose a novel device to measure three-axis acceleration and angular velocity using Inertial Measurement Unit (IMU) technology. By comparing with the traditional high-speed camera, the efficacy of the IMU sphere is validated. In the study of boulder movements within landslides, we employ the IMU sphere to characterize boulders. Through experiments varying two key parameters-the initial position of the IMU sphere and the mass of fine particles-this study identifies three distinct final deposition states of the IMU sphere: separate, partially submerged, and completely submerged. By analyzing the potential and kinetic energy during the sliding process of the IMU sphere, we delve into the combined effects of motion enhancement due to landslide deformation and motion hindrance as the IMU sphere passes through fine particles, thereby revealing the underlying movement mechanisms of boulders within landslides. Analysis of leading wave heights indicates minimal sensitivity to the initial position of the IMU sphere, with the mass of fine particles exerting the primary influence. At last, through a comprehensive analysis of the IMU sphere's motion, a novel positional parameter is introduced, leading to the identification of motion mechanisms and distinct phase diagrams depicting deposition states. |
| DOI | 10.1063/5.0237511 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001369269000015 |
| WOS Keyword | FLOW ; FAILURE |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | National Natural Science Foundation of China10.13039/501100001809[12202460] ; National Natural Science Foundation of China10.13039/501100001809[12032005] ; National Natural Science Foundation of China10.13039/501100001809[12388101] ; National Natural Science Foundation of China10.13039/501100001809[12472259] ; National Natural Science Foundation of China |
| Funding Organization | National Natural Science Foundation of China10.13039/501100001809 ; National Natural Science Foundation of China |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Liu, Haoran |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/97754 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Univ Sci & Technol China, Dept Modern Mech, Hefei 230027, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.Beijing Inst Technol, Sch Aerosp Engn, Dept Mech, Beijing 100081, Peoples R China; 4.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China |
| Recommended Citation GB/T 7714 | Shi CQ,Jiao, Jiajun,Sun, Yunhui,et al. The motion mechanism of a boulder transported by landslide[J]. PHYSICS OF FLUIDS,2024,36,12,:12.Rp_Au:Liu, Haoran |
| APA | 石传奇,Jiao, Jiajun,Sun, Yunhui,Wang, Xiaoliang,Liu, Qingquan,&Liu, Haoran.(2024).The motion mechanism of a boulder transported by landslide.PHYSICS OF FLUIDS,36(12),12. |
| MLA | 石传奇,et al."The motion mechanism of a boulder transported by landslide".PHYSICS OF FLUIDS 36.12(2024):12. |
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