The Numerical Simulation Analysis Of Sediment Of A Reclamation Works

In this paper, the engineering sea sediment environment and seabed evolution are analyzed, and the sea sediment concentration and sediment mathematical model for engineering field and sea floor deformation is simulated calculation and analysis, the main conclusions are as follows:(1) in this sea area the average diameter of0.3mm, sandy coast.(2) in the general weather condition, the engineering sea surface sediment concentration is less than0.02kg/m3, near the coastal and shallow slightly increased. In windy weather conditions, because the wind blowing sand, sea sediment content increased obviously, stormy waves size and its distribution and quantity for different.(3) from2004to2011, in shallow water erosion is serious, in a state of massive contraction. Go west zhuang to Luan port between the margin of seabed scouring and reduced gradually from east to west, near the existing green8m zhuang to shallow terrain is charged with silt, overall change is not large, relatively stable.(4) from the Angle of sediment concentration and seabed deformation simulation demonstrates four conditions:the working condition of the status quo, sea planning (hereinafter referred to as planning), the conceptual design scheme optimization of2(optimization), the labor can be recommended scheme (worker can review meeting according to the shipyard with the approval from the sea, on the basis of optimized scheme of adjustment scheme).(5) the status quo of the sea, under the condition of small windy day, inshore waters project sediment content is in commonly0.005-0.02kg/m3, in shallow waters of the sediment content is in commonly0.01-0.03kg/m3, in channel sediment content is in commonly0.01-0.02kg/m3; NW to the strong wind days, the inland sea inshore water sediment concentration in0.25-0.4kg/m3; Sediment concentration in shallow waters in0.25-0.35kg/m3; In hydrographic sediment concentration generally within0.25kg/m3. (6) engineering, artificial island waters off the coast north of sediment concentration the status quo of the program changed little; Artificial island inland sea water sediment concentration optimization plan basic quite, and workers can recommend a little older planning scheme. Work can be recommended, little windy day, the sediment concentration in the inland sea waters in0.001-0.01kg/m3; To the NW winds days, sediment concentration in the inland sea waters generally at about0.2kg/m3.(7) in the inland sea waters in the seabed deformation, the work can be recommended in deformation amplitude is less than planning, artificial beach waters in silting thickness is less than planning, and optimization scheme. Work under the recommended scheme, the west side of the inland sea waters, seabed silting thickness is in commonly0.05m; Central inland sea waters, seabed silting thickness is in commonly0.1m; Inland sea waters on the east side, have rushed with silt seabed, a slightly deposition beach area.