IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleFailure mechanism of retaining wall in earthquake and its seismic design measure
吴永; 何思明; 李新坡; 佘涛
Corresponding Author吴永
Source PublicationInternational Conference on Engineering and Business Management(EBM2010) ; Proceedings of International Conference on Engineering and Business Management(EBM2010)
Conference Date2010-3-25
Conference Place四川成都
Funding Organization武汉大学;美国James Madison大学;美国科研出版社
Other Abstract 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。
; 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.
Keyword地震 挡墙失效 上限定理 耗能减震 柔性防护
Document Type会议论文
Recommended Citation
GB/T 7714
吴永,何思明,李新坡,等. 震时刚性挡墙的失效机理与柔性防护措施[C],2010:3308-3312.
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