한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제30권6호
  • /
  • Pages.743-751
  • /
  • 1997
  • /
  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
권호 표지

\ulcorner㈎\ulcorner의한 세굴깊이의 실험적 예측에 대한 고찰

Examination on the Experimental Prediction of Scour Depths Caused by Jets

  • 발행 : 1997.12.01
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초록

본 연구에서는 수직 또는 경사 에 의한 세굴에 대한 과거 연구결과의 종합적인 분석 및 재검토를 통하여 현재까지의 실험에 대한 문제점 파악 및 앞으로의 연구방향을 모색하며 과거 여러 연구자들의 실험적 연구중 약 500개의 실험자료를 이용하여 범용성있는 실험적 예측공식을 제시하였다. 예측세굴깊이는 하류수심 Ht와 평형하상으로부터의 세굴깊이 Hs의 합으로 표현할 수 있었으며 세굴지배인지는 하상입자의 크기, 단위폭당 유량, 그리고 상하류수면 차로 단순화시킬 수 있었으며 ${\gamma}$=0.941란 높은 상관관계를 보이는 경험적 세굴예측공식을 유도하였다. 유도하였다.

A thorough literatural review of researches on the experimental prediction of scour depths caused by jets was carried out to find out a measure of scour prediction. A new experimental equation for predicting scour depths due to a vortical or an inclined jet was developed from five hundreds of experimental data which were carefully reviewed and adopted from the previous researches. The developed equation shows 0.941 statistical correlation coefficient. It was found that the parameters governing the scour depth were the size of bed material, flow rate through unit width of spillway, and head drop across structure. The predicted scour depth could be expressed as the deepest scouring depth below tail water surface with correlation coefficient ${\gamma}$ = 0.941.

키워드

참고문헌

  1. 한국수자원학회지 v.28 no.4 자유낙하수맥 하류부에서의 세굴에 관한 실험적 연구 윤세의;이종태;손광익;김준현
  2. Pre-excavation of riprapped scour holes below flip bucket spillway Barfuss, S. L.
  3. J. of Hydraulics v.100 no.10 Impinging circular turbulent jets Beltaos, S.;Rajaratnam, N.
  4. J. of Hydraulics v.117 no.HY5 Scour Downstream of grade -control structures Bormann, N.;E., Julien;Pierre, Y.
  5. Engineering Journal Erosion at the base of flip bucket Chee, S. P.;Padiyar, P. V.
  6. Secretaria de Recursos Naturales y Ambiente Humano Evaluation de la socavation maxima aguas abajo de aliviaderos en salto de esqui Chividine, M. F.;Lopardo, R. A.;Vernet, G. F.;C. M. Angelaccio
  7. Golden Jubilee symposium, Government of India, Ministry of Irrigation and Power, Central Water and Power Commission Vol.1, Model and Prototype conformity Evaluation of scour below ski-jump buckets of spillways Damle, P.M.;Venkatraman, C.P.;Desai, S.C.
  8. IAHR 5th Congress v.1 Scour from jets Doddiah, D.;Albertson, M. L.;Thomas, R.
  9. Die Gesetzmaβigkeit der Kolkbildung hinter uberstromten Wehren Hartung, W.
  10. Dissertation, Prom, Nr. 3983, Technischen Hochschule Zurich Das kolkproblem unter besonderer berucksichtigung der faktoren zeit und geschiebemischung im rahmen der wildbachverbauung Kotoulas, V. D.
  11. Water power and dam construction Scouring of rocky riverbeds by freejet spillways Martins, B. F.
  12. Proceedings Institution of Civil Engineers Erosion of plunge pools downstream of dams due to the action of free-trajectory jets Mason, P. J.;Mice
  13. Stable riprap size for open channel flows Maynord, S. T.
  14. J. of Hydraulics div. v.92 no.HY5 Discussion on Sediment transportation Mechanics : Initiation of motion Neill, C. R.;Giessen, V. D.
  15. Applying Research to Hydraulic Practise, Jacksn Erosion by unsubmerged plane water jets Rajaratnam, N.
  16. Die Wasserwirtschaft no.24 Kolkbildung unter Ueberfallstrahlen Schoklitsch, A.
  17. J. of Hydraulic Research v.31 no.6 Mechanics of jet scour downstream of a headcut Stein, O. R.;Julien, P. Y.;C. V. Alonso
  18. Engineering Journal Discussion on Erosion at the base of flip buckets Tallis, J. A.;Cronin, D. L. R.
  19. Diamond Jubilee Symposium v.1 Model of spillway - A case study Thimakorn, P.;Arbhabhirama, A.;Chaturapitophol, S.
  20. Design of Small Dams USBR
  21. International symposium on river mechanics v.1 Scour at downstream end of dams in Taiwan Wu, C. M.