Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Analysis of Instances of Characteristics Land Creep on the Mine Area in Korea

우리나라 광산지역에서의 땅밀림 사례 분석

  • Park, Jae-Hyeon (Department of Forest Resources, Gyeongnam National University of Science and Technology) ;
  • Park, Seonggyun (Department of Forest Resources, Gyeongnam National University of Science and Technology)
  • 박재현 (경남과학기술대학교 산림자원학과) ;
  • 박성균 (경남과학기술대학교 산림자원학과)
  • Received : 2018.10.10
  • Accepted : 2018.11.09
  • Published : 2018.12.31
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Abstract

The aim of this study was to analyze the characteristics of ground subsidence and land-creeping in four mining areas in Korea. Land creeping were occurred by large-scale sinkholes and tensile cracks in the mining areas. This ares showed the shape as large-scale landslides by the collapsed stone debris pushed in the direction of gravity. The rock type in the No. 4 survey area was sandstone and shale, whereas that of other three areas was limestone. The limestone was generally vulnerable to land creeping. The ground subsidence and land creeping in four mining areas were located near the ridge of the mountain. The land creeping by ground subsidence in the mining areas showed complex shapes due to the cavity of underground tunnel and the colluvial debris by gravity in the mountain area, whereas the land creeping in Korea are in the shape of landslide. The average slope of the mining area was ranged from $30.4^{\circ}$ to $33.7^{\circ}$. The values were higher ($1.5^{\circ}{\sim}4.8^{\circ}$) than the average slopes for landslide areas.

이 연구는 우리나라의 4개 광산지역에서 발생된 지반침하로 인한 땅밀림의 특성을 분석하였다. 땅밀림이 진행되고 있는 광산지역은 대규모 함몰, 인장균열 등이 나타났고, 붕괴된 토석이 중력방향으로 밀려 내려와 대규모 산사태와 같은 형상을 나타내었다. 주 구성암석은 4번 조사지역이 사암 및 셰일이었고, 나머지 3개 지역은 모두 석회암 지역으로 땅밀림에 취약한 암석지역으로 나타났다. 4개의 광산지역에서 발생된 지반침하로 인한 땅밀림이 발생된 위치는 4/10~10/10부 능선 지역으로 모두 산지 정상부에 가까운 곳에서 발원하였다. 광산지역을 제외한 우리나라에서의 땅밀림은 모두 사태형을 나타내고 있는데, 이들 광산지역에서의 지반침하로 인한 땅밀림은 지하갱도의 공동으로 산지부의 중력에 의한 하중으로 인하여 발생된 함몰형과 땅밀림의 영향으로 사태형이 복합적으로 나타나는 것으로 분석되었다. 평균산지경사도는 $30.4^{\circ}{\sim}33.7^{\circ}$로 우리나라 땅밀림지의 평균경사도 약 $28.9^{\circ}$ 보다 $1.5^{\circ}{\sim}4.8^{\circ}$ 높게 나타났다.

Keywords

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Figure 1. Location map of the study site (KIGAM, 2018).

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Figure 2. Land creeping sign in the study site.* 1 : Kum-mari Mountain 90, Maehwa-myeon, Uljin-gun, Gyeongbuk; 2 : Dunjeon-ri, Hajang-myeon,Samcheok-si, Gangwon-do 4; 3 : 8-2, Mt. Ga-mokri, critical area, Jeongseon-gun, Gangwon-do; 4 :335-8 Cho Dong-ri, Shindong-myeon, Jeongseon-gun, Gangwon-do

Table 1. Geological characteristics of the study area.

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Table 2. Soil characteristics of the study area.

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Table 4. The site characteristics of the study area.

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Table 5. The input of ground water characteristics of the study area.

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Table 6. The influences of rain days on the land creep in the study area.

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Table 3. The topographical characteristics and land creep of main and local tension cracks of the study area.

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References

  1. Anderson, M.G. and Richards, K.S. 1987. Slope Stability. Wildly and Sons. pp. 210.
  2. Auzet, A.V and 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. https://doi.org/10.1002/(SICI)1096-9837(199606)21:6<531::AID-ESP606>3.0.CO;2-B
  3. Choi, W.S., Kim, E.S. and Yang, I.J. 2017. Design and construction cases of preventing ground subsidence in mine. Tunnel and Underground Space 27(6): 393-405. https://doi.org/10.7474/TUS.2017.27.6.393
  4. Choi, S.J. and Kwak, J.H. 2017. Prevention of hazard in mine project and plan. Journal of Mine Reclamation Technology and Policy 11(1): 5-25.
  5. Choi, K. 2016. Ground sinking. Korean Society of Forestry Environment Research 19: 90-102.
  6. Culling, W.E.H. 1963. Soil Creep and the Development of Hillside Slopes. The Journal of Geology 71(2): 127-161. https://doi.org/10.1086/626891
  7. Davis, W.M. 1899. The Geographical Cycle. The Journal of Geology 14(5): 481-504.
  8. Jau, J.G., Park, S.J., Son, D.S. and Joo, S.H. 2000. The Effects of Geological and Topographical Features on Landslide and Land-creep. Journal of Korean Forest Society 89(3): 323-334.
  9. Kim, C.S., Park, J.H., Cho, H.S., Ma, H.S. and Lee, G.S. 2015. Physiochemical Properties of Ogranic and Soil Horizon in Restoration Area following Forest Landslide by Creeping Soils. Journal of Agriculture & Life Science 49(6): 27-35. https://doi.org/10.14397/jals.2015.49.6.27
  10. Kim, H.G. 2004. Slope stability and characteristics of shallow landslide occurred in granite hillslopes. Master. Thesis, KyungHee University, Seoul, Korea. pp. 150.
  11. Lee, D.K., Jo, Y.D., Jung, Y.B. and Song, W.K. 2007. Characteristics analysis of mine subsidence in korea by case investigation. KIGAM Bulletin 12(1): 1-10.
  12. Matsukura, Y. and Tanaka, Y. 1983. Stability Analysis for Soil Slips of Two Gruss Slope in Southern Abukuma Mountains, Japan. Transactions, Japanese Geomorphological Union 4: 229-239.
  13. Montgomery, D.R., Sullivan, K. and Greenberg, H.M. 1998. Regional test of a model for shallow landslide. Hydrological Processes 12: 943-955. https://doi.org/10.1002/(SICI)1099-1085(199805)12:6<943::AID-HYP664>3.0.CO;2-Z
  14. Park, J.H. 2015. Analysis on the Characteristics of the Landslide: With a Special Reference on Geo-Topographical Characteristics. Journal of Korean Forest Society 104(4): 588-597. https://doi.org/10.14578/jkfs.2015.104.4.588
  15. Park, J.H. 2016. The actual conditions and Management of Land Creep in Korea. Korean Society of Forestry Environment Research 19: 40-50.
  16. Park, J.H., Choi, K., Lee, S.G., Ma, H.S., Lee, J.H. and 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.
  17. Park, J.H., Choi, K., Bae, J.S., Ma, H.S. and 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.
  18. Park, J.H., Lee, C.W., Kang, M.J. and Kim, K.D. 2015. Analysis of Characteristic of Forest Environmental Factors on Land Creeping Occurrence. Journal of Agriculture and Life Science 49(5): 133-144. https://doi.org/10.14397/jals.2015.49.5.133
  19. Shunji I. 1978. Soil Creep Measurements in Khumbu. Journal of the Japanese Society of Snow and Ice 40: 60-63. https://doi.org/10.5331/seppyo.40.Special_60
  20. Tomio H.Z., Sohei, A., Takeshi, N. and Tosihiko, S.T. 1990. Landslide Disaster in Temanggung, Indonesia. Journal of the Japan Society of Erosion Control Engineering 42(6): 57-59.
  21. Varnes, D.J. 1978. Slope Movement Types and Processes. Transportation Research Board Special Report. pp. 11-33.
  22. Woo, B.M., Park, J.H., Choi, H.T., Jeon, G.S. and Kim, K.H. 1996. A Study on the Characteristics of the Landslide in Hyuseok-dong(I): Topographical Characteristics and Surface Displacement. Journal of Korean Forest Society 85(4): 565-570.
  23. Yoon, S.H., Nam, G.S., Sim, Y.S., Lee, J.S., Kim, T.H., Kim, J.A. and Kwon, H.H. 2005. Cause and prevention in Mine hazard area. Journal of Mine Reclamation Technology 1(1): 5-25.