| Impact protection of bridge piers against rockfall | |
He, Siming1,2,3 ; Yan, Shuaixing1,2,4; Deng, Yu1,2,4; Liu, Wei1,2
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| Corresponding Author | He, Siming(726483842@qq.com) |
| 2019-06-01 | |
| Source Publication | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
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| ISSN | 1435-9529 |
| Volume | 78Issue:4Pages:2671-2680 |
| Abstract | The Dujiangyan-Wenchuan highway serves as a vital passage to and from the region severely damaged by the 5.12 Wenchuan Earthquake in China. Chediguan Bridge is located on the highway and spans the Minjiang River. During the earthquake, the bridge was severely destroyed by rockfalls. Although the bridge was subsequently rebuilt and opened to traffic on May 12, 2009, it was destroyed again on July 25, 2009 by rock avalanches that had been located perilously high on the right bank of the Minjiang River, and caused deaths, casualties, and roads being cut off. A subsequent investigation revealed multiple perilous rocky areas on the massif along the Minjiang river bank, indicating an extremely high risk of another rockfall hazard, which could, again, lead to damage to the bridge and a further disastrous outcome. To mitigate the rockfall hazard to the bridge, a new flexible, energy-dissipating crashworthy device for bridge piers is developed to withstand the impact of rockfall. Numerical simulations using nonlinear finite element analysis was carried out to simulate the rockfall impact process on bridge piers. The following influencing factors during the impact process were taken into account: material nonlinearity, geometric nonlinearity, as well as contact nonlinearity. The results show that the new protective structure of bridge piers can effectively buffer rockfall impacts and significantly improve the anti-impact capability of the bridge piers. |
| Keyword | Chediguan Bridge Energy-dissipating crashworthy device Rockfall Impact protection |
| DOI | 10.1007/s10064-018-1250-5 |
| Indexed By | SCI |
| WOS Keyword | DYNAMIC-RESPONSE ; DESIGN ; CONCRETE ; EMBANKMENTS ; SIMULATION ; FAILURE ; TESTS ; MODEL |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41790433] ; NSFC-ICIMOD[41661144041] ; Science and Technology Department of Sichuan Province of China[2016SZ0067] ; Key Research and Development Projects of Sichuan Province[2017SZ0041] ; research and development plan project for science and technology of the Ministry of Railways[Z2012-061] ; research and development plan project for science and technology of the Ministry of Railways[CLRQT-2015-012] ; research and development plan project for science and technology of the Ministry of Railways[2012-Major-3] |
| WOS Research Area | Engineering ; Geology |
| WOS Subject | Engineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary |
| WOS ID | WOS:000468075000034 |
| Funding Organization | National Natural Science Foundation of China ; NSFC-ICIMOD ; Science and Technology Department of Sichuan Province of China ; Key Research and Development Projects of Sichuan Province ; research and development plan project for science and technology of the Ministry of Railways |
| Publisher | SPRINGER HEIDELBERG |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/26228 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | He, Siming |
| Affiliation | 1.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, IMHE, Chengdu 610041, Sichuan, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| First Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation GB/T 7714 | He, Siming,Yan, Shuaixing,Deng, Yu,et al. Impact protection of bridge piers against rockfall[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019,78(4):2671-2680. |
| APA | He, Siming,Yan, Shuaixing,Deng, Yu,&Liu, Wei.(2019).Impact protection of bridge piers against rockfall.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,78(4),2671-2680. |
| MLA | He, Siming,et al."Impact protection of bridge piers against rockfall".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 78.4(2019):2671-2680. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| He2019_Article_Impac（8864KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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