用于统一分类的插曲性滑坡运动的Endo-exo框架:对预测灾难性故障的影响
Qinghua Lei1, Didier Sornette2
1Department of Earth Sciences, Uppsala University, Uppsala, Sweden.
Science advances
|September 24, 2025
概括
滑坡运动是偶发的,是由内部和外部因素驱动的. 这项研究引入了一种新的理论和分析方法,用于预测灾难性的山体滑坡故障,改进早期预警系统.
科学领域:
- 地质科学 地质科学
- 地震科学 地震科学 地震科学
- 地质技术工程 地质技术工程
背景情况:
- 滑坡在崩之前长时间呈现间歇性的运动,通常是由降水等外部因素引发的.
- 这些插曲性运动的潜在机制及其与最终不稳定性的联系尚未完全理解.
研究的目的:
- 提出并验证一种新的"内外"理论,通过考虑内部损害修复过程和外部压力因素来解释偶发性山体滑坡动态.
- 开发一个框架来分类山体滑坡行为和预测灾难性故障.
主要方法:
- 开发了"内外"理论,整合了影响滑坡动态的内源和外源因素.
- 根据干扰源和关键性预测了四种类型的情节性动态.
- 使用其零星活动数据测试了Preonzo山体滑坡的预测.
主要成果:
- "内外"理论成功地分类了Preonzo滑坡的零星活动.
- 在不同的动态中确定了一个单一的管理参数.
- 最终的崩之前,在1-2个月内,中大速度的频率增加了,这表明过渡到灾难性状态.
结论:
- 滑坡并不一定是在永久的危急状态下运行.
- "内向外"理论为山体滑坡行为和不稳定性提供了新的视角.
- 这些发现对改善灾难性山体滑坡故障预测具有重要意义.
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