| 基于Newmark模型的地震诱发滑坡易发性分析方法的研究 |
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| 引用本文： | 邱丹丹,吴燕玲,宋世杰. 基于Newmark模型的地震诱发滑坡易发性分析方法的研究[J]. 防灾科技学院学报, 2021, 0(1): 54-58 |
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| 作者姓名： | 邱丹丹 吴燕玲 宋世杰 |
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| 作者单位： | 武汉工程大学资源与安全工程学院/兴发矿业学院 |
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| 基金项目： | 湖北省教育厅科学技术研究项目(B2018047);武汉工程大学校内科学研究基金项目(K201854)。 |
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| 摘 要： | 以芦山地震诱发滑坡数据为研究对象,开展Newmark模型在区域性地震诱发滑坡空间易发性分析中的应用研究.首先采用网格形式进行数据处理,完成地形坡度、地震参数等数据的统一化,重点利用地层岩性数据对Newmark模型内参数开展区域定量化赋值,在此基础上根据Newmark模型及地震参数相关公式分别计算了安全系数、临界加速度和...
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| 关 键 词： | 地震滑坡 易发性 Newmark 安全系数 累积位移 |
Susceptibility Analysis Method of Earthquake-induced Landslide Based on Newmark Model |
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| QIU Dandan,WU Yanning,SONG Shijie. Susceptibility Analysis Method of Earthquake-induced Landslide Based on Newmark Model[J]. Journal of Institute of Disaster-prevention Science and Technology, 2021, 0(1): 54-58 |
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| Authors: | QIU Dandan WU Yanning SONG Shijie |
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| Affiliation: | (School of Resources and Safety Engineering/Xingfa School of Mining,Wuhan Institute of Technology,Wuhan 430073,China) |
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| Abstract: | Taking the data of Lushan earthquake-induced landslides as the research object,we applied the Newmark model in the spatial susceptibility analysis of regional earthquake-induced landslides.Firstly,we processed data in the form of grid to unify topographic slope,seismic parameters etc.,and emphatically used stratigraphic lithology data to carry out regional quantitative assignment of parameters in Newmark model.Then,we calculated the safety factor,critical acceleration and cumulative displacement respectively according to Newmark model and related formulas of seismic parameters,and analyzed the earthquake-induced landslide susceptibility in this area by using the cumulative displacement.On this basis,we completed the earthquake-induced landslide susceptibility zoning.Finally,we verified the analysis result by the identified landslide and obtained that the accumulated displacement has a good correlation with the actual landslide. |
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| Keywords: | earthquake landslide susceptibility Newmark safety factor cumulative displacement |
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