Impact protection of bridge piers against rockfall
文献类型：期刊论文
| 作者 | He, Siming1,2,3 ; Yan, Shuaixing1,2,4; Deng, Yu1,2,4; Liu, Wei1,2
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| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
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| 出版日期 | 2019-06-01 |
| 卷号 | 78期号:4页码:2671-2680 |
| 关键词 | Chediguan Bridge Energy-dissipating crashworthy device Rockfall Impact protection |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-018-1250-5 |
| 通讯作者 | He, Siming(726483842@qq.com) |
| 英文摘要 | 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. |
| WOS关键词 | DYNAMIC-RESPONSE ; DESIGN ; CONCRETE ; EMBANKMENTS ; SIMULATION ; FAILURE ; TESTS ; MODEL |
| 资助项目 | 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研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000468075000034 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | 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 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/26228]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | He, Siming |
| 作者单位 | 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 |
| 推荐引用方式 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. |
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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