基于新型地震烈度快速评估方法的震后人员压埋估计
Evaluation of Post-Earthquake Buried Personnel Based on a New Model of Seismic Intensity Rapid Assessment
破坏性地震发生后,对震后压埋人员进行有效估计,是科学、有序应急处置和救援的基础. 地震烈度快速评估结果是震后人员压埋估计中不可或缺的一类基础数据,对人员压埋数量及分布估计的合理性、准确性有重要作用. 以一种新型的基于反投影能量点结合断层最短距离地震动衰减方法、以及目前使用最为广泛的传统椭圆衰减模型方法的烈度快速评估结果为基础,对甘肃及周边近年来发生的3次7级以上地震进行震后人员压埋进行估计,并与实际灾情进行对比. 相较于传统椭圆地震烈度衰减模型烈度快速评估方法,基于反投影能量点结合地震动参数衰减模型的烈度快速评估能更为准确、精细地确定地震重灾区、极重灾区的分布;对震后人员压埋总数、压埋重点区域判定的合理性和准确度改进效果明显,该新型烈度快速评估方法在7级以上破坏性大地震人员压埋估计中显示了良好的适用性,在评估时效上也可满足地震应急指挥决策、应急救援工作的实际需求.
seismic intensity / rapid assessment / post-earthquake buried personnel / earthquake emergency response
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甘肃省地震局地震科技发展基金(2019M01)
中国地震局地震预测研究所基本科研业务费专项(2023IESLZ04)
“十三五”国家重点研发计划项目(2017YFB0504104)
甘肃省省级重点人才项目
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