Authors:
Han-Saem Kim
1
and
Choong-Ki Chung
2
Affiliations:
1
Korea Institute of Geoscience and Mineral Resources, Korea, Republic of
;
2
Seoul National University, Korea, Republic of
Keyword(s):
Information System, Landslide Hazard Map, GIS, Earthquake, Rainfall.
Abstract:
Securing the slope stability for earthquake and rainfall by analysing the behaviour of slope structure is one of the most important parts in landslide disaster preparation, especially in Korea including many mountain areas. However, there is still a lack of systematic research on securing the slope stability for earthquake and rainfall in Korea. Therefore, the systematic research on factors affecting the slope stability and evaluation method of slope stability considering earthquake and rainfall induced factors should be needed. In this study, integrated information system of landslide hazard map during earthquake and rainfall was developed. The developed system built, within the frame of GIS, consists of a database (DB) containing all site information and processed data in the system in the standard data formats, and the system software performing various functions to manage and utilize the data in the database. The system software is functionally divided into an input module, earth
quake-induced landslide assessment module, rainfall-induced landslide assessment module, and hazard mapping module. Study area is Cheonggye Mountain and Deogyu Mountain in Korea, and landslide hazard map is constructed by using amplification factor obtained from geometrical characteristics of slope and Severity Level linked with rainfall datasets based on the developed system.
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