Shoreline Change Modeling on Beach Ecological Restoration Project Design of the Tidal Channel
Beach erosion is a severe problem worldwide and beach nourishment is widely regarded today as an environmentally acceptable method to protect and enlarge beaches.In many beach nourishment projects on headland-bay beaches, artificial headlands were constructed on the natural headlands to form an embayed beach in static equilibrium to protect the beach more effectively.However, the construction of artificial headland would weaken the water exchange in the bay and make the water quality easy to deteriorate.In a beach nourishment project in Qinhuangdao, China to dispose this discrepancy an engineering measure was conducted: to reserve a tidal channel between the artificial headland and the natural headland to allow the tidal current to pass.In this paper, a shoreline change model was set up based on GENESIS model to evaluate the influence of the reserve of the tidal channel on the shoreline change after the project.The model was verified by reproducing the post-project shoreline.Four different project schemes with different scales of tidal channel were simulated and discussion was given based on the analysis of simulated results.The numerical evaluation of various scheme options indicates that it is feasible to involve the tidal channel in beach nourishment projects with artificial headland and the scale of the tidal channel should be designed based on the hydrodynamic processes and the state of the beach.
Tidal Channel Beach Nourishment Headland-bay
MENG Fanjie ZHANG Jiabo QIU Ruofeng
Qinhuangdao Mineral Resource and Hydrogeological Brigade,Hebei Geological Prospecting Bureau,P.R.CHINA
国际会议
第十八届凯洛林国际地质学术研讨会(The 18th Kerulien International Conference on Geological)
石家庄
英文
794-798
2013-09-20（万方平台首次上网日期，不代表论文的发表时间）