Numerical simulation on the impact characteristics between rockfalls of different shapes and gravel cushions
文献类型：期刊论文
| 作者 | Zhu, Chun1,3,4; Xu, Jia-jun3; Wang, Ya-jun5; He, Man-chao3,5; Cui, Sheng-hua1; Zhang, Xiao-hu2,5; Tao, Zhi-gang5 |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 20期号:9页码:2731-2743 |
| 关键词 | Gravel cushion Impact force Penetration depth Rockfall shape Numerical simulation |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-022-7699-5 |
| 英文摘要 | The shape of rockfalls significantly affects the performance of the impact cushion, which is manifested by the difference in the impact force and the penetration depth of the rockfall during the collision. In this study, we built the collision numerical model between rockfalls and cushions based on the results from previous studies, and simulated the collision process of rockfalls with four different shapes (cylindrical, cuboid, spherical, and cubic) and different cushions. Essential parameters when rockfalls impact cushions are calculated, including the maximum impact forces on the surface and bottom of the cushions and the maximum penetration depth of the rockfall. The results showed that the maximum impact force on the surface and the bottom of the cushions varies with the rockfall shapes. The maximum impact force on the cushion surface caused by cylindrical rockfall is the smallest, followed by the cuboid rockfall, the cube rockfall, and the spherical rockfall. The maximum impact force at the cushion bottom also follows this trend. However, the penetration depth of cuboid rockfall is the smallest, followed by the cylindrical rockfall, the cubic rockfall, and the spherical rockfall. The results of this study provide more extensive theoretical support for rockfall disaster prevention using gravel cushions. |
| 资助项目 | This work was supported by the National Key Research and Development Program of China (2022YFC3080100), the National Natural Science Foundation of China (Grant No.52104125), opening research fund of State Key Laboratory of Geomechanics and Geotechnical Eng[2022YFC3080100] ; National Key Research and Development Program of China[52104125] ; National Natural Science Foundation of China[SKLGME021009] ; opening research fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[[2022] General 166] ; Basic Research Program of Guizhou Province-ZK[SKLGP2022K007] ; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection(Chengdu University of Technology) |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001080350100017 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39742]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | He, Man-chao; Cui, Sheng-hua |
| 作者单位 | 1.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Peoples R China 2.Guizhou Univ Engn Sci, Sch Civil Engn, Bijie 551700, Peoples R China 3.Hohai Univ, Sch Earth Sci & Engn, Nanjing 210098, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 5.China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Chun,Xu, Jia-jun,Wang, Ya-jun,et al. Numerical simulation on the impact characteristics between rockfalls of different shapes and gravel cushions[J]. JOURNAL OF MOUNTAIN SCIENCE,2023,20(9):2731-2743. |
| APA | Zhu, Chun.,Xu, Jia-jun.,Wang, Ya-jun.,He, Man-chao.,Cui, Sheng-hua.,...&Tao, Zhi-gang.(2023).Numerical simulation on the impact characteristics between rockfalls of different shapes and gravel cushions.JOURNAL OF MOUNTAIN SCIENCE,20(9),2731-2743. |
| MLA | Zhu, Chun,et al."Numerical simulation on the impact characteristics between rockfalls of different shapes and gravel cushions".JOURNAL OF MOUNTAIN SCIENCE 20.9(2023):2731-2743. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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