Comparative analysis on numerical simulation of the impacts of different beach nourishment schemes on beach profile

Liang Bingchen; Zhu Meixi; Qu Zhipeng; Wang Cong; Lee Dongyoung

doi:10.12284/hyxb2021168

Volume 43 Issue 11

Dec. 2021

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Liang Bingchen，Zhu Meixi，Qu Zhipeng, et al. Comparative analysis on numerical simulation of the impacts of different beach nourishment schemes on beach profile[J]. Haiyang Xuebao，2021, 43(11)：136–145 doi: 10.12284/hyxb2021168

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Comparative analysis on numerical simulation of the impacts of different beach nourishment schemes on beach profile

doi: 10.12284/hyxb2021168

1.
College of Engineering, Ocean University of China, Qingdao 266100, China
2.
Hainan Province Research Academy of Environment Science, Haikou 571126, China
3.
Korea Institute of Ocean, Science and Technology, Busan 49111, Korea

Received Date: 2020-12-16
Rev Recd Date: 2021-04-22

Available Online: 2021-08-13

Publish Date: 2021-12-31

Abstract

Abstract

Numerous engineering projects show that beach nourishment is a common method against coastal erosion. Beach nourishment is an artificial process of adding sediment to a beach to increase beach width and protect it from erosion. In this paper, a 1D numerical model for beach profile was established and verified by the results of physical model experiment. In addition, the rates of profile change to equilibrium profile on different positions and different sand volume schemes were calculated, and the efficiency was compared and analyzed. To analyze the protection effects of beach nourishment, the profiles in nourishment schemes and no nourishment schemes after storm condition were compared. It turned out that when the nourishment volume was large the efficiency of bar nourishment under the calm condition was higher than of berm nourishment, and the nourishment effect under the storm condition was better. This study has important implications to save construction costs and raise working efficiency during the practical nourishment engineering. In the meantime, it sheds light on evaluating the effect of beach nourishment.
- beach nourishment,
- equilibrium profile,
- XBeach,
- numerical model,
- nourishment efficiency

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References

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