基于Newmark模型的尼泊尔M_s8.1级地震滑坡危险性快速评估

发布时间：2018-06-08 08:25

本文选题：Ms.级尼泊尔地震 + Newmark模型　；参考：《地质力学学报》2017年01期

【摘要】：在研究分析地震灾区地形地貌、地层岩性、地质构造、气象水文和典型地区滑坡的基础上,采用Newmark斜坡累积位移模型对2015年4月25日尼泊尔M_s8.1级地震诱发的滑坡危险性的空间分布状况进行了快速评估,通过典型地区的滑坡遥感解译结果验证表明评估结果具有较好的可信度,初步反映了尼泊尔地震诱发滑坡危险性分布的基本特征。然后考虑降雨作用对震后滑坡危险性的影响,对地震叠加降雨诱发滑坡危险性分布进行了快速预测。研究结果对地震应急救灾中的地质灾害防灾减灾具有重要的参考意义。
[Abstract]:On the basis of studying and analyzing topography and landform, stratigraphic lithology, geological structure, meteorology, hydrology and landslide in typical areas of earthquake disaster area, The spatial distribution of landslide risk caused by the Ms8.1 earthquake in Nepal on April 25, 2015 was evaluated rapidly by using Newmark slope cumulative displacement model. The results of remote sensing interpretation of landslide in typical areas show that the evaluation results are reliable and reflect the basic characteristics of landslide risk distribution induced by earthquake in Nepal. Then, considering the effect of rainfall on landslide risk after earthquake, the risk distribution of landslide induced by earthquake superposition is predicted quickly. The research results have important reference significance for geological disaster prevention and mitigation in earthquake emergency relief.
【作者单位】：中国地质科学院地质力学研究所;国土资源部新构造运动与地质灾害重点实验室;
【基金】：国家自然科学基金项目(41502313) 国家科技基础性工作专项(2011FY110100-2)
【分类号】：P642.22

【相似文献】