KMS Institute of Mountain Hazards and Environment,CAS
| A theoretical model for the estimation of maximum impact force from a rockfall based on contact theory | |
| ZHANG Shi-lin; YANG Xing-guo; ZHOU Jia-wen | |
| Corresponding Author | ZHOU Jia-wen |
| 2018-02 | |
| Source Publication | Journal of Mountain Science
 |
| ISSN | 1672-6316 |
| Volume | 15Issue:2Pages:430-443 |
| Subtype | 期刊论文 |
| Abstract | 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. |
| Keyword | Rockfall Motion Characteristics Contact Theory Maximum Impact Force |
| DOI | 10.1007/s11629-017-4606-6 |
| Indexed By | SCI |
| Language | 英语 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/20857 |
| Collection | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.2 |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 17.pdf（1358KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment