Comparison of calculation methods for the design value of single layer ice thickness—A case study of JZ20-2 sea area in Liaodong bay
LIU Yong-qing1, LI Hui-hui2, SHI Wen-qi1, KONG Fei3, LIU Xue-qin1, YUAN Shuai1, XU Ning1
1. National Marine Environmental Monitoring Center, Dalian 116023, China;
2. CNOOC Information Technology CO, Ltd Beijing Branch, Beijing 100029, China;
3. Liaoning Marine Environmental Forecasting and Disaster Prevention and Mitigation Center, Shenyang 110001, China
Abstract：The reasonable value of single layer ice thickness is important for sea ice disaster risk assessment to ocean engineering.The design value of single layer ice thickness for JZ20-2 sea area was calculated based on field measured data,utilizing statistical analysis,sea ice zoning design conditions and the negative accumulated temperature method.Then the calculation results,feasibility and safety of the three methods were evaluated.Results show that,for the sea ice risk assessment of China,the sea ice zoning method and the statistics analysis method were proposed to used to determine the design value of the single layer ice thickness.
LIU Yong-qing,LI Hui-hui,SHI Wen-qi et al. Comparison of calculation methods for the design value of single layer ice thickness—A case study of JZ20-2 sea area in Liaodong bay[J]. Marine Environmental Science, 2017, 36(6): 941-946.
CROASDALE K R.Ice forces on fixed rigid structures[R].CRREL Special Report.Hanover,NH:Working Group on Ice Forces on Structures,1980:34-106.
[3]
LØSET S,SHKHINEK K N,GUDMESTAD O T,et al.Actions from ice on Arctic offshore and coastal structures.Publisher "LAN".St.St.Petersburg,Russia,2006.
[4]
陈伟斌.海冰与孤立桩相互作用的数值模拟[J].海洋学报,1996,18(4):114-119.
[5]
MÄÄTTÄNEN M.The effect of ice pile-up on the ice force of a conical structure[C]//Proceedings of 16th IAHR Ice Symposium.Espoo,Finland:IAHR,1990(2):1010-1021.
