Risk Assessment of Geological Hazards in the Dahe Mountain Area Based on AHP
Abstract
In order to evaluate the geological disasters in the DaHe Mountain area, In view of the geological environment and the development characteristics of rock strata in DaHe Mountain area of Dalian, six influencing factors have been selected as the study evaluation index which such as stratigraphic lithology (a1), slope structural type (a2), slope gradient (a3), slope height (a4), rainfall (a5) and structural plane (a6). The weight of evaluation factors is determined by AHP method, and the risk assessment model of geological hazards is established in the study area. On this basis, the risk of geological hazards in the study area is preliminarily divided and calculated according to the established evaluation model. The risk magnitude of geological hazards in different regions of Dahe Mountain is obtained. Moreover, the research findings can provide certain reference for the government's risk prevention and control.
Keywords
AHP method, Geological hazard, Risk assessment, Evaluation model
DOI
10.12783/dteees/gmee2018/27463
10.12783/dteees/gmee2018/27463
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