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Analysis on the Characteristics of the Landslide - With a Special Reference on Geo-Topographical Characteristics -
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  • Journal title : Journal of Korean Forest Society
  • Volume 104, Issue 4,  2015, pp.588-597
  • Publisher : Korean Forest Society
  • DOI : 10.14578/jkfs.2015.104.4.588
 Title & Authors
Analysis on the Characteristics of the Landslide - With a Special Reference on Geo-Topographical Characteristics -
Park, Jae-Hyeon;
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 Abstract
This study was carried out to identify the reasons of the landslide by land creeping in South Korea in order to provide basic information for establishing the management plan for prevention. Total 29 sites of landslide areas caused by land creeping were observed in South Korea. Among them, the soil-composition of most frequent landslide areas occurred by land creeping was colluvium landslide as 75.9% (22 sites), followed by clay soil landslide as 10.3% (3 sites), bedrock landslide as 6.9% (2 sites), and weathered rock landslide as 6.9% (2 sites). According to the types of parental rocks, the investigated landslide areas were divided into 3 types: 1) metamorphic rocks including schist, phylite, migmatitic gneiss, quartz schist, pophyroblastic gneiss, leucocratic granite, mica schst, banded gneiss and granitic gneiss, 2) sedimentary rocks including limestone, sandstone or shale and mudstone, 3) igneous rocks such as granite, andesite, rhyolite and masanite. As a result, it was noticed that the landslides occurred mostly at the metamorphic rocks areas (13 sites; 44.8%), followed by sedimentary rock areas (12 sites; 41.4%), and igneous rock areas (4 sites; 13.8%). Looking at the direct causes of the landslide, the anthropological activities (71%) such as cut slopes for quarrying, construction of country house, plant, and road, farming of mountain top, and reservoir construction were the biggest causes of the landslides, followed by the land creeping landslides (22%) caused by geological or naturally occurred (22%), and cliff erosions (7%) by caving of rivers and valleys.
 Keywords
landslide;scar;depression;crack;stone debris;colluvium landslide;clay soil landslide;weathered rock landslide;bedrock landslide;
 Language
Korean
 Cited by
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