Browse > Article

Effects of Long-Term Harbor Shutdown and Temporal Operational Stoppage upon Optimal Design of Vertical Breakwater Caisson  

Suh, Kyung-Duck (Department of Civil and Environmental Engineering & Engineering Research Institute, Seoul National University)
Kim, Deok-Lae (Hyundei Institute of Construction Technology, Hyundai Engineering & Construction Co., Ltd.)
Kim, Kyung-Suk (Research Center for Marine Environment Development and Technology, Kwandong University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.19, no.2, 2007 , pp. 113-127 More about this Journal
Abstract
In this study, a model to calculate the expected total construction cost is developed that simultaneously considers the rehabilitation cost related to the sliding of the caisson, the economic damage cost due to harbor shutdown in the event of excessive caisson sliding, and the economic damage cost due to temporal operational stoppage by excessive wave overtopping. A discount rate is used to convert the damage costs occurred at different times to the present value. The optimal cross-section of a caisson is defined as the cross-section that requires a minimum expected total construction cost within the allowable limit for the expected sliding distance of the caisson during the lifetime of the breakwater. Two values are used for the allowable limit: 0.3 and 0.1 m. It was found that the economic damage cost due to harbor shutdown by excessive caisson sliding is more critical than the rehabilitation cost of the caisson or the economic damage cost by excessive wave overtopping in the decision of the optimal cross-section. In addition, the optimal cross-section of the caisson was shown to be determined by the allowable limit for the expected sliding distance rather than the minimum expected total construction cost as a larger value is used for the threshold sliding distance of the caisson for harbor shutdown.
Keywords
sliding of caisson; wave overtopping; discount rate; expected total construction cost; optimal cross-section;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 김창학, 이철규, 최형래, 강인석 (2002). 항만구조물의 VE/LCC 사례 적용 연구. 대한토목학회 2002년도 학술발표회논문집, pp. 51-54
2 이철응 (2002). 기대 총 건설비 최소화 기법에 의한 혼성제 직립 케이슨의 설계, 대한토목학회논문집, 22(6-B), 819-831
3 정신택, 김정대, 조홍연 (2004). 한국 연안 심해 설계파고의 극치분포 특성, 한국해안해양공학회지, 16(3), 130-141
4 조홍연, 정신택, 오영민 (2004). 조위자료의 확률밀도함수 추정, 한국해안해양공학회지, 16(3), 152-161
5 한국해양연구원 (2005). 전해역 심해설계파 추정 보고서
6 홍수영, 서경덕, 권혁민 (2004). 파향의 변동성을 고려한 직립방파제 콘크리트 케이슨의 기대활동량 산정, 한국해안해양공학회지, 16(1), 27-38
7 Goda, Y. (1969). Re-analysis of laboratory data on wave transmission over breakwaters, Report of the port and harbour research institute, Vol. 8 No. 3
8 Vrijling, J.K., Voortman, H.G., Burcharth, H.F. and Sorensen, J.D. (2000). Design philosophy for a vertical breakwater, Proc. of Coast. Struc. '99, ASCE, 631-635
9 Heijn, K.M. (1997). Wave Transmission at vertical breakwaters, Afstudeerverslag, Technishe Universiteit Delft, Faculteit Civiele Techniek
10 Shimosako, K. and Takahashi, S. (1998). Reliability design of composite breakwater using expected sliding distance, Rep. of the Port and Harb. Res. Inst., 37(3), 3-30(in Japanese)
11 권혁미 (2004). 대도시 아스팔트 포장공법에 대한 LCC분석모델 개발 및 VE평가에 관한 연구, 석사학위논문, 한양대학교
12 Takahashi, S., Shimosako, K. and Hanzawa, M. (2001). Performance design for maritime structures and its application to vertical $breakwaters^{{\circ}TM}$ caisson sliding and deformationbased reliability design, Advanced Design of Maritime Structure in the 21th Century, Port and Harbour Research Institute, 63-73
13 Goda, Y. and Takagi, H. (2000). A reliability design method of caisson breakwaters with optimal wave heights, Coast. Engrg. J. 42(4), 357-387
14 Hussarts, M., Vrijling, J.K., Van Gelder, P., de Looff, H. and Blonk,C. (2000). The probabilistic optimization of revetment on the dikes along Frisian coast, Proc. of Coast. Struc. '99, ASCE, 325-329
15 김경숙, 서경덕 (2005). 기대 총 건설비 및 허용 활동량을 고려한 방파제 케이슨의 최적설계, 한국해안해양공학회지, 17(4), 280-293
16 해양수산부 (2001). 해상파랑관측 및 조사
17 Voortman, H.G., Kuijper, H.K.T. and Vrijling, J.K. (1998). Economic optimal design of vertical breakwaters, Proc. 26th Int. Conf. Coast. Engrg., ASCE, 2124-2137
18 Alfageme, S.A., Headland, J.R. and Kotulak, P. (2000). Dike design optimization and reliability analysis, Proc. of Coast. Struc. '99, ASCE, 295-299
19 한국항만협회 (1997). 항만편람
20 Goda, Y. (2001). Performance-based design of caisson breakwaters with new approach to extreme wave statistics, Coast. Engrg. J. 43(4), 289-316   DOI   ScienceOn
21 김승우, 서경덕, 오영민 (2006). 동해항 방파제를 대상으로 한 신뢰성 설계법의 비교 연구. 2. 케이슨의 활동, 한국해안해양공학회지, 18(2), 137-146   과학기술학회마을
22 Shimosako, K. and Takahashi, S. (1999). Application of deformation-based reliability design for coastal structures, Proc. of Coast. Struc. '99, ASCE, 363-371
23 해양수산부 (2005). 항만 및 어항 설계 기준