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Comparative Analyses on Hydraulic Stability Formulae of Riprap  

Choi, Hung-Sik (상지대학교 건설시스템공학과)
Lee, Min-Ho (상지대학교 대학원 토목공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.8, no.3, 2008 , pp. 149-155 More about this Journal
Abstract
To evaluate the formulae for the stability of riprap, the formulae of Isbash, California division of highway, Netherlands, ASCE, Pilarczk, and Maynord are comparatively analysed with the experimental results. The critical velocity which initiates the motion of riprap is increased with the weight and the size in diameter and the riprap size with water depth, Froude number, shear velocity with mean velocity, Shields parameter have great correlation with them. The results by 6 formulae are overestimated in riprap size in diameter and the result by Maynord formula proposed by U.S. Army Corps of Engineers estimates rather correct. The results by Isbash, Netherlands, and Pilarczk are overestimated in riprap weight but the result by California division of highway formula coincides with experimental result. In the experimental results of model riprap artificially made by gypsum with light weight density, the critical velocity is increased with shape factors. The critical velocity appears greater in regular arrangement of model riprap than in random arrangement of it. Therefore the shape factor and the degree of interlocking are an important parameters in riprap stability.
Keywords
riprap; hydraulic stability; shape factor; critical velocity;
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  • Reference
1 한국건설기술연구원 (2006) 다기능하천 설계기준 실험검증사업
2 Brown, S.A. and Clyde, E.S. (1989) Design of Riprap Revetment. Hydraulic Engineering Circular No. 11(HEC-11). FHWA-lp-89-016, Washington, D.C
3 Maynord, S.T., Ruff, J.F., Abt, S.R. (1989) Riprap Design. Journal of Hydraulic Engineering, ASCE, Vol. 115. No. 7, pp. 937-949   DOI
4 Pilarczyk, K. W. (1990) Stability Criteria for Revetments. Proc. of the 1990 National Conference on Hydraulic Engineering, ASCE, San Diego, USA
5 Stefano, C. D. and Ferro, V. (1998) Calculating Average Filling Rock Diameter for gabion-Mattress Channel Design. Journal of Hydraulic Engineering, ASCE, Vol. 124, No. 9. pp. 975-978   DOI   ScienceOn
6 우효섭 (2001) 하천수리학. 청문각
7 문수남 (1995) 수리모형 실험에 의한 사행하도의 사석크기에 관한 연구. 한국수자원학회논문집, 한국수자원학회, 제28권, 제4호, pp. 205-213
8 이동섭, 여홍구 (2005) 사석 바닥보호공 재료입경 결정을 위한 실험적 연구. 한국수자원학회 05학술발표회 논문집, 한국수자원학회, pp. 1036-1039
9 Lagasse, P.F., Zevenbergen, L/W., Schall, J.D., and Clopper, P.E. (2001) Bridge Scour and Stream Instability Countmeasures. Rep. No. FWHA-NH1-01-003, Hydraulic Engineering Circular No. 23(HEC-23), 2nd Ed. Office of Bridge Technology, Federal Highway Administration, Washington, D.C
10 박영욱, 황보연, 구본충, 박상현 (2005) 방조제 끝막이 구간에서 유속에 대한 사석 및 돌망태의 안정성분석. 한국관개배수, 제12권, 제2호, pp. 26-36
11 Melville, B. W., Ballegooy, S., Coleman, S. E., and Barkdoll, B. (2007) Riprap Size Selection at Will-Wall Abutments. Journal of Hydraulic Engineering, ASCE, Vol. 133, No. 11, pp. 1265-1269   DOI   ScienceOn
12 USACE (1991) Hydraulic Design of Flood Control Channels. EM1110-2-1601, Dept. of the Army, U.S. Army Corps of Engineers, Washington, D.C
13 California Division of Highways (1970) Bank and Shore Protection in California Highway Practice
14 서영제 (1995) 조류속에 따른 사석규격 결정공식에 관한 연구. 한국관개배수, 제2권, 제2호, pp. 167-175
15 ASCE (1975) Manuals and Reports on Engineering Practice No. 54, Sediment Engineering. pp. 531-534
16 Delft Hydraulics (2002) Hwaong Dike Closure
17 Isbash, S. (1935) Construction of Dams by Dumping Stones into Flowing Water. Rep., U.S. Army Engineering District, U.S. Army Corps of Engineers, Eastport, Maine