하천의 영향을 받는 동해안 대왕암 주변의 해안선변화
Shoreline Change near the Daewangam Beach Influenced by Stream Flows in the East Coast of Korea
0
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
Bonggil-ri Beach located in the main historical site, Daewangam, has been seriously occurred the beach change in accordance with the variation of sediment rate from river and the construction of large-scale structures such as Wolseong Nuclear Power Plant. In order to investigate the present state of erosion and deposition for this coast and the influence of erosion and deposition caused by the construction of structures, field observations such as long term analysis of aerial surveying photographs and observation with seasonal changes of shoreline and beach profiles were conducted and the results were analyzed. In the basis of these observed data, the long term beach changes were predicted by the numerical model of shoreline change that considered the effect of river, where the empirical parameters were verified with field data. The seasonal variation of beach deformation was strongly represented in Bonggil-ri Beach. The shoreline change was mainly dependent upon the movement of sand spit in the north coast from Daewangam and the south coast was comparatively shown a stable state. In the verification simulations of shoreline change, the calibration parameters to estimate the total longshore sediment transport rate were the lowest errors with C1=0.2, C2=0, and qsource=0.33x23,236m3/year. Both forward and backward movements of shorelines in the beach were sensitively responsed in accordance with the sediment rate from Daejong Stream and the change of external forces by the structures near the beach.
Abstract
Bonggil-ri Beach located in the main historical site, Daewangam, has been seriously occurred the beach change in accordance with the variation of sediment rate from river and the construction of large-scale structures such as Wolseong Nuclear Power Plant. In order to investigate the present state of erosion and deposition for this coast and the influence of erosion and deposition caused by the construction of structures, field observations such as long term analysis of aerial surveying photographs and observation with seasonal changes of shoreline and beach profiles were conducted and the results were analyzed. In the basis of these observed data, the long term beach changes were predicted by the numerical model of shoreline change that considered the effect of river, where the empirical parameters were verified with field data. The seasonal variation of beach deformation was strongly represented in Bonggil-ri Beach. The shoreline change was mainly dependent upon the movement of sand spit in the north coast from Daewangam and the south coast was comparatively shown a stable state. In the verification simulations of shoreline change, the calibration parameters to estimate the total longshore sediment transport rate were the lowest errors with C1=0.2, C2=0, and qsource=0.33x23,236m3/year. Both forward and backward movements of shorelines in the beach were sensitively responsed in accordance with the sediment rate from Daejong Stream and the change of external forces by the structures near the beach.
참고문헌 (13)
- 국립해양조사원, "2010년 조석표" (2010)
- 박일흠, "후포해빈에서 해안선의 장기변화 및 전연안표사량의 추정", 한국해양공학회지, 21(4), pp.15~20 (2007), 한국해양공학회
- 박일흠, "해운대 해빈의 해안선변형 예측모형", 한국해안·해양공학회지, 1(1), pp.50~62 (1989), 한국해안·해양공학회
- 박준용, "경상북도 경주군 나아리 해안의 자갈해빈에서의 퇴적작용", 석사, pp.1992
- 월성원자력발전소 인근(봉길리)해안 침·퇴적영향조사보고서, "부경대학교 수산과학연구소", ~ (2004)
- 이종섭, "해안구조물 주변에서 해안선변형 예측모형에 관한 실험", 한국해안·해양공학회지, 2(2), pp.67~74 (1990), 한국해안·해양공학회
- 해양수산부, "장기파랑산출 자료집" (1997)
- Hallermeier, R.J., "Sand transport limit in coastal structure design", Proc. Coastal Structures '83, pp.253~277 (1983), ASCE
- Horikawa, K., "Nearshore dynamics and coastal processes" (1988), University of Tokyo Press
- One-line model development and simulation for Oarai beach, "Kraus, N.C.", ~, pp.NERC Report No.15 (1981)
- Ozasa, H., "Mathematical modelling of beachs backed by seawalls", Coastal Engineering, 4(1), pp.47~64 (1980)
- STWAVE: Steady-State Spectral Wave Model; Report 1: User’s manual for STWAVE version 2.0, "Smith, J.M.", U.S. Army Engineer Research and Development Center, ~, pp.Instructional Report CHL-99- (1999)
- Swart, D.H., "Offshore sediment transport and equilibrium beach profiles" (1974), Delft Hydraulics Laboratory Publication