Numerical Study On The Environment Effects Of Marine Engineering On The Mouth Of Xiaoqing River In Laizhou Bay

The Estuariene and coastal engineering is an important form of marine resourcesexploitation, and an important expansion means of human living space and productionspace to the ocean. While unreasonable marine engineering construction and marineexploitation destroys the hydrodynamic environment and ecological environment, thenleads changes of sea and land, and breaks the ecological balance. So,a research on theestuarie and coastal dynamic canditongs and water quality relationship has significancescientific value and practical guidance.This paper constructs a numerical simulations of tidal model and a substanceconservative transportting model base on the field in laizhou Bay. The calculation resultsare in accord with the observation well, and the results can meet the requirements ofresearch area.The calculated results show that: after the completion of the breakwater, thecurrent flows to the eastward in both side of the breakwater, and the current flows alongconstruction. The double breakwater construction in Weifang port make hydrodynamicconditions weaked and water exchange reduced, After the implementation of Guangliharbor planning, the influence of tidal current will converge at the adjacent area. In themouth of the new bay between Weifang Port and Guangli Port, water exchage willincreas,but in the top and both two out sides, water exchange capacity will be reduced.In all three kinds of port engineering layout, Weifang port and Guangli port planningand layout implementation will make diffusion capacity of the Xiaoqing River pollutantreduced but range increased. Because of that, we should have sufficient argumentation ofengineering layout before a marine engineering being done...