한국농공학회지 (Magazine of the Korean Society of Agricultural Engineers)

한국농공학회 (The Korean Society of Agricultural Engineers)
권호 표지

필터재의 입도범위와 작용수압에 따른 성토재의 유실 특성

Characteristics of Volume Loss for Base Materials with Different Hydraulic Pressures and Filter Grain Size

  • 발행 : 2003.05.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The objective of this study is to evaluate the stability of the design criteria recommended by Betram and Terzaghi as compared with the experimental result. A series of NEF tests was conducted to determine the loss of volume in base soils. The three kinds of base soils classified as CL, SC and SM are used for the NEF tests with various hydraulic pressures and filters following upper and lower bond of the criteria. Volume loss characteristics of the base soils was examined closely by the results of the test successfully. Firstly, it was found that the loss of base soils was mostly eroded at the first stage of seepage. Secondly, the amount of loss volume was ranked CL > SM > SC in order of their amounts for upper criteria, and SM > CL > SC orderly for lower criteria. Thirdly, the volume loss of all soils was increased with increasing the hydraulic pressures. And lastly, the needs of the new design criteria was proved for the control of seepage and piping.

키워드

참고문헌

  1. Soil Mechanics Series No. 7 An Experimental Investigation of Protective Filters Bertram,G.E.
  2. Seepage, Drainage, and Flow Nets Harry, R. Cedergren
  3. Journal of the Korea Society for Civil Engineer v.5 no.1 Experiment on seepage in varied section of core wall for fill dam design Jin,B.I.;Kim,J.H.
  4. Canadian Geotechn. J. v.22 no.2 Internal stability of granular filters Kenny,T.C.;D.Lau https://doi.org/10.1139/t85-029
  5. Canadian Geotechn. J. v.23 no.3 Internal stability of granular filters: Reply Kenny,T.C.;D.Lau https://doi.org/10.1139/t86-068
  6. M. S. Thesis. Chungbuk National University The stability evaluation of river embankment for a piping phenomenon Kyong,G.H.
  7. Journal of the Korea Society of Agriculturad Engineer v.25 no.1 Comparison studies on seepage flow analysis of dam body Kwon,M.N.;Kang,Y.M.
  8. J. Geotechn. Eng. v.115 no.12 Filtration of broadly graded cohesionless soils Lafleur,J.;J.Mlynarek;A.L.Rollin
  9. Journal of the Korea Society for Civil Engineer v.35 no.1 Destructive cause of dams and prediction of a maximum flood Lee,J.T.
  10. Design of Dam and Construction Handbook Lee,J.W.;Lee,K.S.
  11. Dam Safety. v.2 Filter material study for an earth dam project Lilja,H.M.;M.Rother;O.T.Ravaska;Berga,L.
  12. Design criteria of dam Ministry Construction
  13. Canadian Geotechn. J. v.23 Internal stability of granular filters Ripley,C.F. https://doi.org/10.1139/t86-037
  14. J. Geotechn. Eng. v.115 no.7 Critical filters for impervious soils Sherard,J.L.;L.P.Dunnigan https://doi.org/10.1061/(ASCE)0733-9410(1989)115:7(927)
  15. Journal of the Korea Society for Agricultural Engineer v.22 no.2 A study of the seepage through sand-constructed medel dams Sin,B.W.
  16. Journal of the Korea Society for Civil Engineer v.5 no.4 Analysis of slope stability through sand constructed model levee Sin,B.W.;Choi,G.B.