| The numerical simulation analysis of the meaning is to solve the west coast city in rapid erosion, coastal beaches, trees, houses were destroyed, the beach environment is poor state, quasi planning through the construction of artificial revetment, artificial beach and lateral artificial island, the existing An Xianjin for renovation and repair, and create a set of sea travel, leisure, landscape, entertainment, tourism in one of the large coastal tourism landscape, make it become a milepost of cultural tourism.The purpose of this numerical simulation analysis is mainly from the point of view of wave angle, measured wave characteristics of the project area, construction area wave mathematical model, calculation of different level in50years,10years and2years in the NE, NW and W to design wave elements wave cofferdam, analysis of the project scheme of key regional wave conditions is calculated and, through carries on the contrast analysis to the sea use planning scheme, optimization of conceptual planning and design, scheme and the recommended scheme, determine the anchor stability conditions and artificial beach wave conditions, ultimately determine the land reclamation project.The measured wind, wave conditions in engineering area based on SWAN model and BW model, the simulation calculation of wave design elements and harbor engineering mooring conditions, the conclusions are as follows:(1) the sea wind is a typical monsoon type, spring summer autumn and winter wind direction and opposite, under the influence of the Siberia cold wind is big, strong winds are concentrated in NE-NW.(2) the sea is the wave based, mixed wave sea swell as the project area, sea wave direction and wave for NE; according to the arrangement of artificial islands plan of central planning, things on both sides of the door is on the artificial island port to port NW, the door is on the east of the NE, while the West outlet door is NW-W to influence the main wave; engineering construction for NE, NW and W to.(3) construction, different water level and the recurrence period under the conditions of NW and NE waves on the artificial island design wave elements play a leading role. The maximum significant wave height in the West Island lateral1#test point, extreme high water50years maximum significant wave height is4.3m,10years the maximum significant wave height is3.2m; the design of high level50years maximum significant wave height is4.1m,10years the maximum significant wave height is3.1m.(4) the maximum significant wave height after the project construction is located outside the West artificial island11#test point, extreme high water50years maximum significant wave height is4.10m,10years the maximum significant wave height is3.67M; the design of high level50years maximum significant wave height is4.00m,10years maximum effective wave height is3.60m.(5) according to the analysis before and after construction of Dengzhou shallows near the wave field change, that has no significant effect on the construction of waves on the Dengzhou shoal.(6) from the wave point of view, work can be recommended wave conditions better, because of higher requirement for the marina, suggest gate outside the marina floating type structure, which can further reduce wave, can be in sunny weather conditions at the yacht, and does not affect the water exchange. |
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