Journal of Forest and Environmental Science

  • 제30권1호
  • /
  • Pages.113-119
  • /
  • 2014
  • /
  • 2288-9744(pISSN)
  • /
  • 2288-9752(eISSN)
강원대학교 산림과학연구소 (Institute of Forest Science, kangwon National University)
권호 표지
DOI QR코드

DOI QR Code

비탈면 안정을 위한 참싸리 뿌리의 토양보강 효과

Analysis on Soil Reinforcement by Lespedeza cyrtobotrya Roots for Slope Stability

  • 황진성 (국립산림과학원 산림생산기술연구소) ;
  • 지병윤 (국립산림과학원 산림생산기술연구소) ;
  • 오재헌 (국립산림과학원 산림생산기술연구소) ;
  • 차두송 (강원대학교 산림환경과학대학 산림경영학과)
  • Hwang, Jin-Sung (Forest Practice Research Center, Korea Forest Research Institute) ;
  • Ji, Byoung-Yun (Forest Practice Research Center, Korea Forest Research Institute) ;
  • Oh, Jae-Heun (Forest Practice Research Center, Korea Forest Research Institute) ;
  • Cha, Du-Song (Department of Forest Management, College of Forest & Environmental Sciences, Kangwon National University)
  • 투고 : 2014.02.04
  • 심사 : 2014.02.06
  • 발행 : 2014.02.28
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

To examine the soil reinforcement by the shrub with shallow root systems for slope stability, we developed insitu apparatus for direct shear test and conducted the insitu field tests for Lespedeza cyrtobotrya, a representative revegetation species for artificial hillslopes. The insitu field tests were conducted for two different soil conditions (the rooted soils and non-rooted soils) and we then compared the experimental values with those calculated from the Wu model. The results showed that the soil reinforcement derived from the insitu field tests ranged from 0.01525 to 0.1438 $kgf/cm^2$ while the one calculated from the Wu model ranged from 0.1952 to 0.2696 $kgf/cm^2$. Our finding suggests more field tests are needed to collect the related parameters in the model application thereby predicting the reliable soil reinforcement by the shrub root systems.

키워드

참고문헌

  1. Cha DS, Oh JH, Ji BY, Chun KW. 2002. A study on slope stability effects by the tree root systems ( 1 ) - Spatial distribution and physical properties of red pine tree roots -. J Korean For Soc 91: 71-78. (in Korean with English abstract)
  2. Cha DS, Hwang JS, Jeon GW, Oh JH, Ji BY. 2009. Slope stability effect analysis of shrubs' roots. In: Proceedings of the Annual Meeting of Korean Forest Society. Seoul, Korea, pp 412-413. (in Korean)
  3. Cho JH, Ahn BW. 1998. An experimental study on the reinforcement and stabilization of slope by vegetation roots. J Korean Env Res Reveg Tech 1:54-62. (in Korean with English abstract)
  4. Cho JH, Lee JS. 2000. A study on the slope stability analysis by shearing reinforcement of vegetation roots -Focused on the Pinus Koraiensis Roots-. J Korean Inst Landscape Arch 27: 80-93. (in Korean with English abstract)
  5. Ji BY, Oh JH, Choe BG, Jeon GW, Cha DS. 2004. A study on slope stability effects by the tree roots system (IV) - Tensile properties of Korean pine roots -. J Korean For Soc 93: 103-107. (in Korean with English abstract)
  6. Lee IM, Seong SG, Im CM. 1991. An experimental study on the effect of vegetation roots on slope stability of hillside slopes. J Korea Geo Soc 7: 51-66. (in Korean with English abstract)
  7. O'Loughlin CL. 1974. A study of tree root strength deterioration following clearfelling. Can J For Res 4: 107-113. https://doi.org/10.1139/x74-016
  8. Waldron LJ. 1977. The shear resistance of root-permeated homogeneous and stratified soil. Soil Sci Soc Am J 41: 843-849. https://doi.org/10.2136/sssaj1977.03615995004100050005x
  9. Waldron LJ, Dakessian S. 1981. Soil reinforcement by roots: calculation of increased soil shear resistance from root properties. Soil Sci 132: 427-435. https://doi.org/10.1097/00010694-198112000-00007
  10. Waldron LJ, Dakessian S, Nemson JA. 1983. Shear resistance enhancement of 1.22-meter diameter soil cross sections by pine and alfalfa roots. Soil Sci Soc Am J 47: 9-14. https://doi.org/10.2136/sssaj1983.03615995004700010002x
  11. Wu TH, McKinnell WP, Swanston DN. 1979. Strength of tree roots and landslides on Prince of Wales Island, Alaska. Can Geotech J 16: 19-33. https://doi.org/10.1139/t79-003