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Research Article

Analysis of Landcreep Movement Characteristics Using Simple Measuring Instruments in the Banggok-ri, Obu-myeon, and Sancheong-gun Regions

간이계측기를 활용한 땅밀림 거동특성 분석: 산청군 방곡리 땅밀림지를 중심으로

Hanbyeol Kang1
,
Jaehyeon Park2*
강 한별1
,
박 재현2*
1Master’s Student, Division of Environmental and Forest Science, Gyeongsang National University
2Professor, Division of Environmental and Forest Science, Gyeongsang National University
1경상국립대학교 환경산림과학부 석사과정
2경상국립대학교 환경산림과학부 교수
*Corresponding Author
31 March 2025. pp. 41-50
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Abstract

We investigated the movement of tension cracks and characteristics of landcreep areas, focusing on sites in the Banggok-ri, Obu-myeon, and Sancheong-gun regions, using simple measuring instruments. Landcreep of 4.4 cm was observed to have occurred, with a displacement of >3 cm as compared with the control area. This region has experienced landcreep due to road construction and hillside excavation, and there is a concern that if landcreep reoccurs, a major disaster could arise, because the lower part of the area is adjacent to a road and reservoir. The average slope of the landcreep area is 27.8°, making it a region where rainfall accumulates from the lower mountain slopes to the ridge. There is a statistically significant difference in soil hardness between the lower part of the landcreep and the control area. The electrical resistivity results indicate that the low-resistivity zone is deeper after the rainy season, suggesting that weathered soil and rocks have a deeply layered structure. Therefore, continuous monitoring of the landcreep area and an understanding of its movement are essential to preventing disasters that may result from landcreep.

Keywords
simple measuring instrument
tension crack
soil hardness
low-resistivity zone

본 연구는 경상남도 산청군 오부면 방곡리 땅밀림지를 중심으로 간이계측기를 활용하여 인장균열의 이동양상 변화 및 땅밀림지 특성을 규명하기 위하여 실시하였다. 그 결과, 땅밀림이 최대 4.4cm까지 발생하였고, 대조구에 비해 약 3 cm 이상의 단차 이동이 관찰되었다. 이 지역은 도로개설 및 산지절취로 인해 땅밀림이 발생하였으며 하단부에 도로와 저수지가 연접하고 있어 집중호우 시 땅밀림이 재발생하게 되면 대형 재해가 발생할 우려가 있다. 땅밀림지의 평균산지경사는 27.8°로 산복부로부터 산각부로 강우에 의한 집수가 용이한 지역이었다. 토양경도는 땅밀림지 하부와 대조구의 평균 차이가 통계적으로 유의미하게 나타났다. 전기비저항 탐사결과 우기 전 사면보다 우기 후 사면에서 저비저항 이상대가 깊게 나타났으며, 풍화토와 풍화암이 깊게 배치된 것으로 나타났다. 따라서 땅밀림지의 지속적인 모니터링과 거동특성의 파악이 땅밀림으로 발생할 수 있는 재해를 예방하기 위한 대응방안임을 확인할 수 있었다.

키워드
간이계측기
인장균열
토양경도
저비저항 이상대
References
1

Anderson, M.G., Richards, K.S., 1987, Slope stability, Wildly and Sons, 210p.

2

Auzet, A.V., Ambroise, B., 1996, Soil creep dynamics, soil moisture and temperature conditions on a forested slope in the granitic Vosges Mountains, France, Earth Surface Processes and Landforms, 21(6), 531-542.

10.1002/(SICI)1096-9837(199606)21:6<531::AID-ESP606>3.3.CO;2-2
3

Ji, W.H., 2014, Analysis of groundwater flow in the reservoir water elevation, Master Thesis, Keimyung University, 51p (in Korean with English abstract).

4

Kim, H.G., 2004, Slope stability and characteristics of shallow landslide occurred in granite hillslopes, Master Thesis, Kyung Hee University, 150p (in Korean with English abstract).

5

Kim, K.D., Kang, M.J., Park, J.H., 2016, Experimental research for collapse of tension crack in land creeping area - The case of land creeping area in Okjong, Hadong -, Journal of Agriculture & Life Science, 50(6), 11-17 (in Korean with English abstract).

10.14397/jals.2016.50.6.11
6

MAFF (Ministry of Agriculture, Forestry and Fisheries of Japan), 2022, Land improvement project plan design standards and operations and explanation plan: Farmland landslide prevention measures, 575p (in Japanese).

7

Matsukura, Y., Tanaka, Y., 1983, Stability analysis for soil slips of two gruss-slopes in southern Abukuma Mountains, Japan, Transactions, Japanese Geomorphological Union, 4, 229-239.

8

Montgomery, D.R., Sullivan, K., Greenberg, H.M., 1998, Regional test of a model for shallow landsliding, Hydrological Processes, 12, 943-955.

10.1002/(SICI)1099-1085(199805)12:6<943::AID-HYP664>3.0.CO;2-Z
9

Park, J.H., 2016, The actual conditions and management of land creep in Korea, Magazine of Korean Society of Forest Environment Research, 19, 40-50 (in Korean).

10

Park, J.H., 2018, What's land creep, Magazine of Korean Society of Forest Environment Research, 21, 96-107 (in Korean).

11

Park, J.H., Choi, K., Bae, J.S., Ma, H.S., Lee, J.H., 2005, Analysis on the characteristics of the landslide in Maeri (I) - With a special reference on geo-topographical characteristics -, Journal of Korean Forest Society, 94(3), 129-134 (in Korean with English abstract).

12

Park, J.H., Choi, K., Lee, S.G., Ma, H.S., Lee, J.H., Woo, B.M., 2003, Analysis on the characteristics of the landslide in Nasamri (I) - With a special reference on geo-topographical characteristics -, Journal of Korean Forest Society, 92(3), 246-253 (in Korean with English abstract).

13

Park, J.H., Seo, J.I., Lee, C.W., 2019, Analysis of GIS for characteristics on the slow-moving landslide: With a special reference on slope and grade of landslide, Journal of Korean Society of Forest Science, 108(3), 311-321 (in Korean with English abstract).

10.14578/jkfs.2019.108.3.311
14

Tomio, H.Z., Sohei, A., Takeshi, N., Tosihiko, S.T., 1990, Landslide disaster in Temanggung, Indonesia, 1990, Journal of the Japan Society of Erosion Control Engineering, 42(6), 57-59 (in Japanese).

15

Varnes, D.J., 1984, Slope movement types and processes, Transportation Research Board Special Report, 11-33.

Information
  • Publisher :Korean Society of Engineering Geology
  • Publisher(Ko) :대한지질공학회
  • Journal Title :The Journal of Engineering Geology
  • Journal Title(Ko) :지질공학
  • Volume : 35
  • No :1
  • Pages :41-50
  • Received Date : 2025-02-04
  • Revised Date : 2025-02-19
  • Accepted Date : 2025-02-21
  • DOI :https://doi.org/10.9720/kseg.2025.1.041
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