地震信标 - - 一种用于检测岩石群变化的新仪器
1Institute of Rock Structure and Mechanics of The Czech Academy of Sciences, 182 09 Prague, Czech Republic.
Sensors (Basel, Switzerland)
|January 11, 2024
概括
一个新的地震信标仪器使用波地震波测量微妙的岩石变化. 实地测试证实了其检测物质性质转移的能力,这对于地震预测和监测地下现象至关重要.
科学领域:
- 地质物理学 地质物理学
- 地震学 地震学
- 地球科学 地球科学 地球科学
背景情况:
- 测量岩石群中的微妙变化对于理解地质过程和预测自然灾害至关重要.
- 现有的方法往往缺乏敏感性或持续监测能力,以早期检测关键压力.
- 波地震波传播对地内的物质性质变化很敏感.
研究的目的:
- 引入和验证一种新型仪器,即地震信标,用于高灵敏度测量岩层变化.
- 评估地震信标在检测地震等关键事件的前体方面的能力.
- 探索在监测地质现象,如岩运动和流体和变化的潜在应用.
主要方法:
- 连续生成具有稳定的频率和振幅的波地震波.
- 使用地震站系统对地震波的记录.
- 应用先进的信号处理技术来提高信号与噪声的比率,以检测弱信号.
- 实验室原型建造 (2020年) 随后进行现场测试 (2022-2023年).
主要成果:
- 在实地测试期间,成功检测了地震波的光谱幅度和相位变化.
- 将检测到的波变化解释为材料性质的改变.
- 展示地震信标的基本功能和灵敏度.
- 观察非线性效应,包括产生更高的波,表明临界应力.
结论:
- 地震信标是一个功能性和敏感的仪器,用于监测岩石群的特性变化.
- 这项技术显示出通过非线性地震效应对早期地震应力检测的前景.
- 潜在的应用包括监测岩,地下水和碳化合物和,以及气体/液体进入.
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