Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Crack Form and Soil Physical Properties in Land Creeping area on Okjong, Hadong

하동군 옥종면 땅밀림 산사태지의 인장균열 형태와 토양 물리성 변화

  • Kim, Ki-Dae (Department of Forest Resources, Gyeongnam National University of Science and Technology) ;
  • Park, Jen-Hyeon (Department of Forest Resources, Gyeongnam National University of Science and Technology) ;
  • Lee, Chang-Woo (Division of Forest Disaster Management, National Institute of Forest Science) ;
  • Kang, Min-Jeng (Division of Forest Disaster Management, National Institute of Forest Science)
  • 김기대 (경남과학기술대학교 산림자원학과) ;
  • 박재현 (경남과학기술대학교 산림자원학과) ;
  • 이창우 (국립산림과학원 산림방재연구과) ;
  • 강민정 (국립산림과학원 산림방재연구과)
  • Received : 2016.06.08
  • Accepted : 2016.11.30
  • Published : 2016.12.31
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Abstract

This study was carried out to examine of soil physical property and crack shape by collapse process on landslide area (by land creeping) in Hadong, Gyeongnam. We investigated morphological characteristics (length, depth, cut slope) between main crack and local crack, soil physical properties change between undisturbed section and disturbed section. As a result, morphological characteristics of crack showed no significant difference main crack between local crack. In case of soil physical property variation, soil liquid phase was significantly higher at 31-40 cm of soil depth in disturbed section. And this result is likely to be due to site factors.

경상남도 하동군 옥종면 청룡리 땅밀림 산사태지의 인장균열 형성과 그에 따른 토양 물리성 변화를 조사한 결과, 주 인장균열과 국부적 인장균열의 단차와 절취경사는 차이가 없는 것으로 나타났다. 토양 물리성 변화의 경우에는 토양깊이 31~40 cm의 액상이 유의적 차이를 나타내었다. 한편, 액상은 미교란지와 교란지에서 유의적 차이가 나타났는데, 이는 입지요인에 의한 것으로 판단되다. 따라서 하동군 옥종면의 땅밀림 산사태지에서는 붕괴과정 중 토괴가 일체로 미끄러지며, 단적으로는 토양 물리성 변화도 크게 나타나지 않는 것으로 나타났다. 이에 따라 땅밀림 산사태에 대한 보다 연계성 있는 연구가 진행되어야 할 것이다.

Keywords

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