A theoretical model for the estimation of maximum impact force from a rockfall based on contact theory
文献类型：期刊论文
| 作者 | ZHANG Shi-lin; YANG Xing-guo; ZHOU Jia-wen |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2018-02 |
| 卷号 | 15期号:2页码:430-443 |
| 关键词 | Rockfall Motion Characteristics Contact Theory Maximum Impact Force |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-017-4606-6 |
| 通讯作者 | ZHOU Jia-wen |
| 英文摘要 | Rockfall poses a great threat to buildings and personal security. To understand the dynamic characteristics of rockfalls is a prerequisite for disaster prevention and assessment. Models for rockfalls in different forms are established based on the theory of rigid body motion. The equivalent velocity considering the rotational effect is determined by the energy ratio. Besides, considering plastic deformation and nonlinear hardening, the maximum impact force is estimated based on the Hertz contact theory. Then, a case study is carried out to illustrate the applicability of the model and sensitive analyses on some affecting parameters are also made. Calculation results show that the maximum impact force increases with the increasing of incident velocity, angle and slope gradient reflected by the changing of energy ratio. Moreover, the model for the estimation of maximum impact force is validated by two different scales of experiments and compared with other theoretical models. Simulated maximum impact forces agree well with the experiments. |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20857]  |
| 专题 | Journal of Mountain Science _Journal of Mountain Science-2018_Vol15 No.2 |
| 推荐引用方式 GB/T 7714 | ZHANG Shi-lin,YANG Xing-guo,ZHOU Jia-wen. A theoretical model for the estimation of maximum impact force from a rockfall based on contact theory[J]. Journal of Mountain Science,2018,15(2):430-443. |
| APA | ZHANG Shi-lin,YANG Xing-guo,&ZHOU Jia-wen.(2018).A theoretical model for the estimation of maximum impact force from a rockfall based on contact theory.Journal of Mountain Science,15(2),430-443. |
| MLA | ZHANG Shi-lin,et al."A theoretical model for the estimation of maximum impact force from a rockfall based on contact theory".Journal of Mountain Science 15.2(2018):430-443. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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