不同采样策略下地震滑坡敏感性分析研究

doi:10.13722/j.cnki.jrme.2015.1528

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Abstract

Earthquake-induced landslides had complex regularity and were hard to forecast. Traditional susceptibility techniques of earthquake-induced landslides had simple sampling method. The differences from susceptibility analysis of earthquake-induce landslides were done by applying different sampling strategies. The polygon buffer zone was selected as sampling zone，and landslides zones and the sum zones of above two zones were used as comparison. Taking Baosheng in Lushan earthquake occurred on April 20，2013 as the research area. The factors were extracted by sampling method. Then a two-class SVM was trained for calculating susceptibility index. Finally，landslide susceptibility map was done. Statistics，receiver operating characteristic curve and seed cell area indexes were used to analyze the results. The Results of polygon buffer zone were as follows：accuracy of landslide was 94.44%，the area of receiver operating characteristic curve was 99.1%，the seed cell area indexes were best. The result showed the sampling strategy of polygon buffer zone had obvious advantage. So the sampling strategy is feasible and better，it contribute to improve the accuracy of seismic landslide susceptibility analysis.

Key words： slope engineering sampling strategies earthquake-induced landslides susceptibility analysis

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	Articles by authors
	QIU Dandan1
	2
	NIU Ruiqing1
	ZHAO Yannan3

Cite this article:

QIU Dandan1,2,NIU Ruiqing1, et al. Susceptibility analysis of earthquake-induced landslides with different sampling strategies[J]. , 2017, 36(S1): 3401-3408.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.1528 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/IS1/3401

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