한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제48권6호
  • /
  • Pages.79-85
  • /
  • 2006
  • /
  • 1738-3692(pISSN)
  • /
  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
권호 표지
DOI QR코드

DOI QR Code

방조제 이질층의 투수성이 제체 침투에 미치는 영향에 대한 모의 분석

Simulation of Effects of Permeability on Seepage between Two Heterogeneous Layers of Sea-dike

  • 이행우 (농림부 농촌정책국) ;
  • 장병욱 (서울대학교 농업생명과학대학 조경.지역시스템공학부) ;
  • 손영환 (서울대학교 농업생명과학연구원) ;
  • 김성필 (서울대학교 농업생명과학연구원)
  • 발행 : 2006.11.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

A simulation was done to analyze the seepage problems due to seawater intrusion through the embedded rock layers on heterogeneous layers of sea-dike. Numerical analysis with SAMTLE(developed by author) was done by taking various relative permeability $ratio(R_r/R_e)$. These results showed, when the sed-dike is newly designed, operated, and maintained considering the safety of sea-dike in seepage problems, these embankment materials are prudently chosen. The permeability of the soil materials, within the range of salinity management in freshwater, is comparatively high, however, the permeability of rock materials for bottom rock layer is low. Therefore, when the relative permeability $ratio(R_r/R_e)$ is bellow 10 it is safety in seepage problems of sea-dike.

키워드

참고문헌

  1. Abt, S. R., Ruff. J. F., and Wittler. R. J., 1991. 'Estimating flow through riprap.' Journal of Hydraulic Engineering. ASCE, 117 (5): 670-675 https://doi.org/10.1061/(ASCE)0733-9429(1991)117:5(670)
  2. George. G. H., and Hansen. D., 1992. 'Conversion between quadratic and power law for non-Darcy flow.' Journal of Hydraulic Engineering. ASCE, 118(5): 792-797 https://doi.org/10.1061/(ASCE)0733-9429(1992)118:5(792)
  3. Lee. H. W, 2005, Seepage Characteristics of Sea Dike depending on the Size and Permeability of Embedded Rock Layer under soil Fill. Ph.D thesis. Seoul National University. (in Korean)
  4. Lee, H. W., Chang. P. W., 2005a, 'Development and Application of Seepage Analysis Model of Two-Layer Embankment (SAMTLE)'. Journal of Korean Society of Civil Engineers. 25(5C): 353-359. (in Korean)
  5. Lee, H. W., Chang, P. W., 2005b, 'Seepage Problems due to Seawater Intrusion through Embedded Rock Layer of Sea dyke'. 4th International Workshop on Sustainable Development of Tidal Areas, 19th Congress and 56th IEC. International Commission on Irrigation and Drainage (ICID), Beijing, China, Sept. 13. 2005. pp. 137-139
  6. Lee, H. W., Chang, P. W., 2005c, 'See-page Characteristics of Embedded Rock Layer Under the soil Fill', Journal of Korean Society of Geotechnical Engineers, 21(8): 55-61. (in Korean)
  7. Lee, H. W., Chang, P. W., Chang, Wo H., Kim, S. W., 2005, 'Seepage Characteristics of Embankment with or without Gravel Layer under the soil Fill', Journal of Korean Society of Agricultural Engineers, 47(4): 53-61. (in Korean) https://doi.org/10.5389/KSAE.2005.47.4.053
  8. Lee, H. W., Chang, P. W., Song, C. S., Won, J. Y., 2006, 'Simulation of Effects of the Size of Embedded Rock Layer under soil Fill on Seepage Problems of Sea-dike', Journal of Korean Society of Agricultural Engineers, 48(1): 81-88. (in Korean) https://doi.org/10.5389/KSAE.2006.48.1.081
  9. Li, B., Garga, V. K., and Davies, M. H., 1998, 'Relationship for non-Darcy flow in rockfill.' Journal of Hydraulic Engineering, ASCE, 124(2): 206-212 https://doi.org/10.1061/(ASCE)0733-9429(1998)124:2(206)
  10. Ministry of Agriculture & Forestry and Korea Agricultural & Rural Infrastructure Corporation, 2002, A Study on the Method of Preventing Piping for the Hwaong Seadike. (in Korean)
  11. Rural Development Corporation, 1995, Tideland Reclamation in Korea. (in Korean)