Hazard Assessment of Debris-Flow along the Baicha River in Heshigten Banner, Inner Mongolia, China

Chen Cao, Peihua Xu, Jianping Chen, Lianjing Zheng and Cencen Niu
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Chen Cao: College of Construction Engineering, Jilin University, Changchun 130026, China
Peihua Xu: College of Construction Engineering, Jilin University, Changchun 130026, China
Jianping Chen: College of Construction Engineering, Jilin University, Changchun 130026, China
Lianjing Zheng: Construction Engineering College, Changchun Sci-Tech University, Changchun 130600, China
Cencen Niu: College of Construction Engineering, Jilin University, Changchun 130026, China

IJERPH, 2016, vol. 14, issue 1, 1-19

Abstract: This study focused on a cloud model approach for considering debris-flow hazard assessment, in which the cloud model provided a model for transforming the qualitative and quantitative expressions. Additionally, the entropy method and analytical hierarchy process were united for calculating the parameters weights. The weighting method avoids the disadvantages inherent in using subjective or objective methods alone. Based on the cloud model and component weighting method, a model was established for the analysis of debris-flow hazard assessment. There are 29 debris-flow catchments around the pumped storage power station in the study area located near Zhirui (Inner Mongolia, China). Field survey data and 3S technologies were used for data collection. The results of the cloud model calculation process showed that of the 29 catchments, 25 had low debris-flow hazard assessment, three had moderate hazard assessment, and one had high hazard assessment. The widely used extenics method and field geological surveys were used to validate the proposed approach. This approach shows high potential as a useful tool for debris-flow hazard assessment analysis. Compared with other prediction methods, it avoids the randomness and fuzziness in uncertainty problems, and its prediction results are considered reasonable.

Keywords: 3S technologies; cloud model; analytical hierarchy process; entropy method (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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