关于半嵌入式柱元材料的第一个全面的2D实地实验:增强爱情波的减弱和机械洞察力
Xinchao Zhang1,2, Ning Zheng1, Changyin Ji1
1School of Physics, Beijing Institute of Technology, Beijing 100081, China.
Materials (Basel, Switzerland)
|December 31, 2025
概括
这项研究验证了半嵌入式地震元材料 (SEM) 对地震波衰减的有效性. 实地实验表明,SEM有效地减少了破坏性的爱和雷利波,提供了实际的地震保护解决方案.
科学领域:
- 地质物理学 地质物理学
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
背景情况:
- 半嵌入式地震元材料 (SEM) 在雷利波衰减的模拟中表现有希望.
- 在现实世界中,SEM的有效性,特别是对于破坏性的爱情浪潮,仍然在很大程度上未经验证.
- 爱情波对精细结构构成重大风险,但在地震超材料应用中研究不足.
研究的目的:
- 进行第一个全面的二维实地实验,以评估SEM对爱和雷利波的有效性.
- 为SEM的能量消耗提供新的机械洞察力.
- 为了弥合基于模拟的预测和实际的地震保护工程之间的差距.
主要方法:
- 使用一系列半嵌入式柱共振器进行全面的二维实地实验.
- 对实验结果的分析,以确定全球和局部的带隙.
- 在SEM中对能量消耗机制的理论和实验研究.
主要成果:
- 确定了一个全局带隙 (25-37 Hz) 和一个局部带隙 (37-42 Hz).
- 在31赫兹的拉夫波中达到-9.3dB的衰减,在雷利波中达到-5.3dB的衰减.
- 证明了 Love 波的明显缓解,并将地表部分的共振作为主要的消散机制.
结论:
- 在现实条件下,开创了SEM对地震波衰减的全面验证.
- SEM提供有效的保护,防止破坏性的爱和雷利波.
- 对埋藏元件的阻尼效应的洞察力为SEM的工程应用提供了参考.
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