在火山骚乱中,在Campi Flegrei减轻地震风险
Iunio Iervolino1,2, Pasquale Cito3, Melania De Falco4
1Dipartimento di Strutture per l'Ingegneria e l'Architettura, Università degli Studi di Napoli Federico II, Naples, Italy. iunio.iervolino@unina.it.
Nature communications
|December 2, 2024
概括
坎皮·弗莱格雷伊 (Campi Flegrei) 是一个古老的城市.
科学领域:
- 地质科学 地质科学
- 火山学 火山学是一门学科.
- 地震学 地震学
背景情况:
- 意大利的Campi Flegrei是一个人口密集的火山 caldera,经历定期的地面变形 (bradyseism) 和地震活动.
- 近几十年来,出现了显著的升起率 (高达每月2厘米) 和大量的地震,需要更新风险评估.
研究的目的:
- 根据当前的地震和变形数据,评估Campi Flegrei建筑物的结构改造战略的有效性.
- 评估地震风险和地面运动对火山区内钢筋混凝土结构的潜在影响.
主要方法:
- 分析最新的地震和地质数据,包括断层测绘,地形推理和地震转移.
- 应力下降分析和地面运动建模的应用,以确定参考大小.
- 使用地震预测来计算超标概率和地震工程原理来评估结构反应.
主要成果:
- 确定地震事件的参考时刻大小处于特定范围之内.
- 地震预测表明这些幅度的超标概率.
- 地震工程分析显示,可能超过设计地面运动的最小幅度大于参考幅度.
结论:
- 该研究评估了在Campi Flegrei遵守建筑规范的新建筑的风险降低潜力.
- 对钢筋混凝土建筑物的当前安全水平进行了评估,以对抗来自布拉迪地震事件的潜在地震影响.
相关概念视频
Applications of GIS: Disaster Management and Emergency Response
37
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
37
Feedback Regulation of Calcium Concentration
3.3K
Calcium is an essential signaling molecule required for various cellular functions. Calcium pumps and ion channels on cell and organellar membranes, such as those on the endoplasmic reticulum (ER), regulate calcium concentrations inside the cell. They remain closed, keeping the cytosolic calcium levels low at a resting state.
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
3.3K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
40
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
40


