다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기
Journal of hydraulic engineering, v.120 no.12, 1994년, pp.1470 - 1476
Doehring, Frederick K. (Trans. Engr., Caltrans, Dist. 5, San Luis Obispo, CA 93403) , Abt, Steven R. (Prof., Dept. of Civ. Engrg., Colorado State Univ., Fort Collins, CO 80523)
A study was conducted to determine how fall distance, or drop height, beneath a culvert outlet affects the dimensions of localized scour. Eighteen experiments were performed in which flow discharged from a circular, 4-in.-diameter pipe onto a near-horizontal bed for 316 min. The bed material was relatively uniform sand with median grain diameter, d50 = 1.86 mm. The scour hole dimensions, depth, width, length, and volume, were documented for drop heights of 0, 1, 2, and 4 times the culvert diameter above the bed. A series of expressions were developed correlating the dimensionless scour hold parameters of depth, width, length, and volume to the modified discharge intensity, QA-1<>g-0.5RH<>-0.5, and to the drop height. It was determined that culverts placed above the bed result in deeper, wider, and shorter scour holes than culverts placed adjacent to the bed. Criteria for adjusting the existing U.S. Department of Transportation scour hole prediction procedure for drop height is presented in this paper.(Author abstract)
Abt, S. R., Ruff, J. F., Doehring, F. K., Donnell, C. A.. Influence of Culvert Shape on Outlet Scour. Journal of hydraulic engineering, vol.113, no.3, 393-400.
Blaisdell F. W. and Anderson C. L. (1989). Scour at cantilevered outlets: plunge pool energy dissipator design criteria; Vol. 76 . U.S. Department of Agr. Agric. Res. Service (ARS) 76 Washington D.C.
Blaisdell, Fred W., Anderson, Clayton L.. A comprehensive generalized study of scour at cantilevered pipe outlets. Journal of hydraulic research = Journal de recherches hydrauliques, vol.26, no.4, 357-376.
Blaisdell, Fred W., Anderson, Clayton L.. A comprehensive generalized study of scour at cantilevered pipe outlets. Journal of hydraulic research = Journal de recherches hydrauliques, vol.26, no.5, 509-524.
J. Hydr. Engrg., ASCE Blaisdell F. W. 327 107 3 1981 Ultimate dimensions of.local scour
Bohan J. P. (1970). “Erosion and riprap requirements at culvert and storm‐drain outlets.” Hydr. Lab. Investigation; Rep. H‐70‐2 U.S. Army Wtrwy. Experiment Station Vicksburg Miss.
Doddiah D. (1950). “Comparison of scour caused by hollow and solid jets of water ” MS thesis Colorado A&M College Fort Collins Colo.
Doehring F. K. (1987). “The influence of drop height on outlet scour ” MS thesis Colorado State University Fort Collins Colo.
Fletcher B. P. and Grace J. L. Jr. (1972). “Practical guidance for estimating and controlling erosion at culvert outlets.” Hydr. Lab. Investigation; Rep. H‐72‐50 U.S. Army Wtrwy. Experiment Station Vicksburg Miss.
Hallmark D. E. (1955). “Scour at the base of a free overfall ” MS thesis Colorado A&M College Fort Collins Colo.
Proc., 5th Hydr. Conf., Bull. Laursen E. M. 179 34 1952 Observations on the nature of scours
Mih, Walter C., Kabir, Jobaid. Impingement of Water Jets on Nonuniform Streambed. Journal of hydraulic engineering, vol.109, no.4, 536-548.
J. Hydr. Engrg., ASCE Rajaratnam N. 571 14 1977 Erosion by impinging circular turbulent jets
A. R. Robinson,. Model Study of Scour from Cantilevered Outlets. Transactions of the ASAE, vol.14, no.3, 0571-0576.
Rouse H. (1938). “Experiments on the mechanics of sediment suspension.” Proc. 5th Int. Congr. for Appl. Mech. John Wiley and Sons Inc. New York N.Y.
Ruff J. F. Abt S. R. Mendoza C. Shaikh A. and Kloberdanz R. (1981). “Scour at culvert outlets in mixed bed materials.” Rep. for the Ofc. of Res. and Development; Contract DOT‐FH‐11‐922‐7 Federal Hwy. Administration (FHWA) Washington D.C.
Smith G. L. (1957). “Scour and energy dissipation below cantilevered outlets.” Rep. No. CER No. 57 GLS 16 122 Colorado A&M College Fort Collins Colo.
Thomas R. K. (1953). “Scour in a gravel bed ” MS thesis Colorado A&M College Fort Collins Colo.
Thomas Z. (1975). “Time development of the dimensions of a local scour and deposit.” Rep. Agricultural Research Service U.S. Department of Agriculture (USDA) Washington D.C.
U.S. Dept. of Transp. (1983). “Hydraulic design of energy dissipators for culvert and channels.” Chapter V; Hydr. Engrg. Circular No. 14 Ofc. of Engrg. Federal Hwy. Administration (FMWA) Washington D.C.
*원문 PDF 파일 및 링크정보가 존재하지 않을 경우 KISTI DDS 시스템에서 제공하는 원문복사서비스를 사용할 수 있습니다.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.