震时刚性挡墙的失效机理与柔性防护措施
文献类型：会议论文
| 作者 | 李新坡 ; 何思明; 吴永
|
| 出版日期 | 2010 |
| 会议名称 | International Conference on Engineering and Business Management（EBM2010) |
| 会议日期 | 2010-3-25 |
| 会议地点 | 四川成都 |
| 关键词 | 地震 挡墙失效 上限定理 耗能减震 柔性防护 |
| 页码 | 3308-3312 |
| 其他题名 | Failure mechanism of retaining wall in earthquake and its seismic design measure |
| 通讯作者 | 吴永 |
| 中文摘要 | 传统挡墙抗震性能很差,震时极易损毁,致使震后大量挡墙锚固坡体失稳破坏。目前有关地震作用下挡墙的失效机理还不清晰,不能有效解析震波和挡墙体系间的相互作用,也无法提出科学有效的抗震措施。为此,以极限分析的上限定理为工具,从能量角度研究了震时挡墙锚固体系的能量输入与耗散机制,分析了坡体失稳过程和机理。继而在分析导致锚固体系失效的震波特征的基础上,结合柔性防护理论,提出了新型耗能挡墙的设计方法和工作机理。 |
| 英文摘要 | The failure of retaining wall in earthquake is the main factor aggravating the harm of mountain hazards. However, its mechanism is not clear, which result in no effective aseismic measures can be used in project. Therefore, based on energy theory, taken the upper bound theorem as measure, the mechanism of energy input and dissipation under earthquake is studied. Furthermore, by analyzing the wave characters of destructive earthquake, and based on flexible retaining theory, a new aseismic design of retaining wall is proposed. At last, an example is given and shows the common retaining wall usually fails quickly in earthquake. On the contrary, the new system with EPS damping layer can dissipative seismic energy well. |
| 合作状况 | 国内 |
| 会议主办者 | 武汉大学;美国James Madison大学;美国科研出版社 |
| 会议录 | Proceedings of International Conference on Engineering and Business Management（EBM2010)
 |
| 分类号 | TU476.4 |
| 语种 | 中文 |
| ISBN号 | 978-1-935068-05-1 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5680]  |
| 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 |
| 推荐引用方式 GB/T 7714 | 李新坡,何思明,吴永. 震时刚性挡墙的失效机理与柔性防护措施[C]. 见:International Conference on Engineering and Business Management（EBM2010). 四川成都. 2010-3-25. |
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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