Preliminary study on the sediment transportation under the second phases of the reclamation and training projects in the Bodaozui of Zhoushan

4th International Conference on Water Resource and Environment

地球科学;生态环境科学

Qian, X.J.^1 ; Wang, B.Y.^2 ; Xu, T.L.^1 ; Wei, R.L.^1 ; Chen, W.^1 ; Ni, Y.L.^1

School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, China^1

Guangxi Vocational and Technical College of Communication, Nanning, China^2

关键词: Construction land;    Reclamation project;    Rock dumping;    Second phase;    Sediment transportation;    Tidal currents;    Training projects;    Zhoushan;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/191/1/012038/pdf
DOI  :  10.1088/1755-1315/191/1/012038

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A serving area which is on the east side of Shenjia bay was proposed by Shengsi country to provide construction land for the high-end resort of Bodaozui in Zhoushan. In this study, a two-dimensional tidal current and a sediment transportation model of Bodaozui waters were established based MIKE21, and it was verified by the measured tide data. The validated model was then applied to simulate sediment transport caused by the second phase reclamation and training projects. The results showed that: Due to the influence of source, the spread range of suspended sediment for bordering and rock dumping project was larger than that in the filling and drainage project. The outfall was located on the west side of the island, where the space was relatively narrow, which was difficult for the transportation of the suspended sediment. In the bordering and rock dumping project (spring tide), the area of concentration exceeding 100 mg/L is about 11.49 10-3 km2, and is much smaller than that in the filling and drainage project with 84.61 10-3 km2. The reclamation project was affected by the two breakwaters and the impact range of SSC caused by rock dumping and filling projects maybe controlled unlikely to affect the outside hydro-environment.