In this paper,the effect of the dike line adjustment on the Qiantang Tidal Bore(QTB)is studied by physcial experiments.A lab-scale physical model of the Qiantang Estuary is built and the tidal bore is generated.With...In this paper,the effect of the dike line adjustment on the Qiantang Tidal Bore(QTB)is studied by physcial experiments.A lab-scale physical model of the Qiantang Estuary is built and the tidal bore is generated.With this model,the formation and pro-pagation processes of the tidal bore are simulated with or without the dike line adjustment.It is shown that the adjusted dike line changes the direction of the reflected tidal bore.The height of the tidal bore increases in the upstream region where the dike line is contracted.In the tested bent and forking regimes,the bore height at the upstream station is increased by 0.10 m and 0.04 m,respectively.Furthermore,the crossing bore still exists near the Daquekou station and the location slightly moves by about 3 km to the downstream region.展开更多
基金supported by the National Nature Science Foundation of China(Grant Nos.41376099,51609214 and 41676085)the Public Sector of the Ministry of Water Resources Research(Grant No.201401010)
文摘In this paper,the effect of the dike line adjustment on the Qiantang Tidal Bore(QTB)is studied by physcial experiments.A lab-scale physical model of the Qiantang Estuary is built and the tidal bore is generated.With this model,the formation and pro-pagation processes of the tidal bore are simulated with or without the dike line adjustment.It is shown that the adjusted dike line changes the direction of the reflected tidal bore.The height of the tidal bore increases in the upstream region where the dike line is contracted.In the tested bent and forking regimes,the bore height at the upstream station is increased by 0.10 m and 0.04 m,respectively.Furthermore,the crossing bore still exists near the Daquekou station and the location slightly moves by about 3 km to the downstream region.