堤线调整对九溪涌潮景观影响评价研究

因建设需要,拟对钱塘江九溪岸段堤线进行调整。九溪岸段是钱塘江知名的观潮点之一,涌潮是该河段一个重要的自然景观资源。为减小堤线调整对涌潮景观的影响,建立了基于有限元/有限体积法的SCHISM三维涌潮模型,复演了九溪涌潮现象,提出了观潮区的涌潮高度、涌高明显的岸线长度和涌高明显的区域面积等三个综合评价指标,对堤线调整给涌潮带来的影响做出了评价。该研究对其他工程对钱塘江涌潮景观的影响评价具有借鉴意义。

Impact assessment of tidal bore landscape for dike line adjustment in Jiuxi reach of Qiantang River

Due to the necessity of construction, it is proposed to adjust the dike line of Jiuxi reach of Qiantang River. Jiuxi is one of the well-known tidal bore scenic spots of Qiantang River, and the tidal bore is an important natural landscape resource in this reach. In order to mitigate the impact of dike line adjustment on the tidal bore landscape, a three-dimensional SCHISM tidal bore model based on finite element/finite volume method was established, which reproduced the phenomenon of Jiuxi tidal bore. Three comprehensive evaluation indexes were put forward, namely, the height of tidal bore, the length of shoreline with significant bore height and the area with significant height of bore, and the impact of levee adjustment on tidal bore was evaluated. The study has reference significance for other projects to evaluate the tidal bore landscape of Qiantang River.