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《Journal of Zhejiang University(Engineering Science)》 2007-09
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Radial basis function network based tidal bore model and its application to Qiantang estuary

ZENG Jian1,2,SUN Zhi-lin1,XIONG Shao-long2,CHEN Gang2(1.College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310027,China;2.Zhejiang Institute of Hydraulics and Estuary,Hangzhou 310020,China)  
A model for predicting the bore height at Yanguan was established by using the function approximation performance of radial basis function(RBF) network.The model identifies the complex nonlinear relationships between the tidal bore and its influencing factors,and model prediction accuracy depends on identifying the major influencing factors and improving the representative learning samples.Comparison of the simulation results with the observation data showed that the model had good generalization ability.Then the model was used in a case to study the effect of large-scale reclamation and regulation works on the tidal bore in the Qiantang estuary.The influence extent to the bore height at Yanguan was quantitatively analyzed under different hydrodynamic and river-bed condition.The results showed that the bore height decreased by 0.17 m after reclamation under straight alignment of river course,and increased by 0.39 m under curved one.
【CateGory Index】: P731.23
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