日照港水域水动力数学模型及港区回淤分析研究

Numerical Simulation of water Flow with Hydrodynamic Model and Analysis on Sedimentation in Pore Area of Rizhao Harbour

随着日照港港口规模的不断扩大 ,部分港区和航道内出现泥沙淤积现象。针对这一现象开展研究工作 ,建立了日照港区二维潮流数学模型并进行数学模型的验证 ,根据建立的水动力数学模型 ,研究各期工程日照港水域水流条件的变化并进行比较 ;根据历年港区水下地形测量资料 ,分析港区和外海航道的回淤情况 ,研究泥沙来源及回淤产生的原因 ;在缺少泥沙实测资料的情况下 ,参照邻近港口的风浪泥沙相关关系 ,推求日照港水域大风天含沙量关系 ,据此预测港区扩建后的泥沙回淤情况。

With the rapid development of Rizhao Harbour,its size is getting larger and sedimentation appears in partial harbor area and waterway.In this thesis,the problem of sedimentation was investigated.Two-dimensional numerical model of tidal flow in Rizhao Harbour water area was established and tested.Then by the use of the numerical model,the changes of flow current in water body in Rizhao Harbour after each phase project were studied and compared.Based on the underwater topographical survey data of past years,the phenomenon of sedimentation in harbour area and waterway was analyzed.Sediment source and reasons that caused sedimentation were studied.The sediment concentration in gale days was worked out referring to the correlativity of sediment and storm of neighboring harbors to forecast the phenomenon of sedimentation after harbor district is enlarged.