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경남지역 산사태 발생지의 강우 및 지형특성분석Analysis on Rainfall and Geographical Characteristics of Landslides in Gyeongnam Province
- Other Titles
- Analysis on Rainfall and Geographical Characteristics of Landslides in Gyeongnam Province
- Issue Date
- 2011
- Publisher
- 한국환경복원기술학회
- Keywords
- Landslide-triggering factors; Geospatial characteristics; Accumulative rainfall; Rainfall intensity; Kandslide frequency
- Citation
- 한국환경복원기술학회지, v.14, no.2, pp 33 - 45
- Pages
- 13
- Indexed
- KCI
- Journal Title
- 한국환경복원기술학회지
- Volume
- 14
- Number
- 2
- Start Page
- 33
- End Page
- 45
- ISSN
- 1229-3032
2733-5011
- Abstract
- The purpose of this study to analyze landslide-triggering factors using the 38 landslide cases occurred by typhoon, Rusa in 2002, Maemi in 2003 and Ewiniar in 2006 and geospatial characteristics in Hamyang and Geochang County. where two day's heavy rainfall was concentrated on. The rainfalls factors to trigger landslides were accumulative rainfall (>230mm) and rainfall intensity(>30-75mm). The highest landslide frequency was concentrated on the areas of 400-900m in height and on the slopes of 25-40° in degree. The frequency of landslide was high exceedingly above 80% of a slope attitude, while the frequency is very low below 70%. Granite was more susceptible as much as 9 times than metamorphic rocks. In areas mixed soil with gravels and rock blocks, the frequency of landslide was 73%.
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Collections - 농업생명과학대학 > 환경산림과학부 > Journal Articles
- 건설환경공과대학 > 건설시스템공학과 > Journal Articles
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