Assessment model for earthquake-triggered landslides based on quantification theory I: case study of Jushui River basin in Sichuan, China

Weihua Zhao (), Runqiu Huang, Nengpan Ju and Jianjun Zhao

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2014, vol. 70, issue 1, 838 pages

Abstract: Earthquakes that occur in a mountainous region can trigger a mass of landslides (ETL), and these hazards can cause relatively heavy casualties. Compared with other evaluation models and methods, quantification theory I is a multivariate statistical approach that can simultaneously process qualitative and quantitative variables. On the basis of the ETL features and the influencing factors, in this paper, we select lithology, slope gradient, slope height, slope structure, distance to seismogenic fault, hanging wall/footwall of the seismogenic fault, and rock integrity, a total of seven impact factors, as the assessment index. By randomly selecting 128 single slopes in an intense seismic area as the samples, we develop an assessment model and apply it to investigate the regional stability of the Jushui River basin to prove its applicability. Moreover, this method calculates the factor weight; this can also prove the method through a comparison with the existing research results obtained using other methods. Copyright Springer Science+Business Media Dordrecht 2014

Keywords: Earthquake-triggered landslides (ETL); Quantification theory type I; Evaluation index; Evaluation and forecast model; Importance order of influencing factors (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1007/s11069-013-0846-0

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