Mangrove forest and submerged breakwater coupled ecological breakwater

Abstract

The invention discloses a mangrove forest and submerged breakwater coupled ecological breakwater, and belongs to the field of coastal engineering. The mangrove forest and submerged breakwater coupledecological breakwater is characterized in that a traditional breakwater structure is innovatively coupled with a mangrove forest, a plurality of submerged breakwaters are periodically arranged at intervals, breakwater core stones, dimension stones, backfill soil and protective surfaces are sequentially laid in the breakwaters, and due to the existence of the submerged breakwaters, the vertical elevations of plants are changed in a staggered mode. The mangrove forest is composed of a tree crown, a tree stem and a tree root, the canopy with the most remarkable wave absorbing capacity is lifted,and therefore the effective wave absorbing water level is increased. Under the action of waves and tide, through the mode, the mangrove forest can generate more shearing layers, and the wave-absorbingand flow-resisting effects are enhanced; and the wave absorbing capacity of the submerged breakwater to surface waves can be enhanced through the mangrove forest, and the damage effect of extreme seaconditions such as storm surge on the submerged breakwater is weakened. The mangrove forest and the submerged breakwater are coupled, the occupied area is reduced, a win-win situation is achieved bycombining the wave absorbing characteristics of the mangrove forest and the submerged breakwater, meanwhile, environmental protection is achieved, and economic value and ecological significance are achieved at the same time.

Description

technical field [0001] The invention relates to the field of coastal engineering, in particular to an ecological breakwater coupled with a mangrove and a submerged embankment. Background technique [0002] my country's coastal wetlands are an important treasure house of natural resources, including rich vegetation resources and biological resources. Due to the special geographical location of coastal wetlands, wetland vegetation resources interact frequently with the marine hydrodynamic environment, and storm surges pose a greater threat to coastal ecological wetlands. Especially in recent years, due to the rapid global warming that has caused sea level rise to increase, coupled with the rapid development of my country's coastal economy and society, storm surges have tended to expand in scope and increase in frequency, and have become the focus of my country's coastal wetland ecological security issues. Focus on one of the content. [0003] At present, when the traditional ...

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Problems solved by technology

[0004] At present, the traditional arrangement of coastal shelterbelts requires a large scale to dissipate most of the incoming wave and flow energy. At the same time, according to the law of mangrove wave dissipation, the effect of wave dissipation and flow resistance at the front of the mangrove is most significant, while The wave absorption and flow resistance capacity of the middle and rear parts is greatly reduced, and a large-scale mangrove is required to achieve complete energy dissipation, so the cost and economic investment are relatively high

In addition, the wave-absorbing area of ​​mangroves is mainly concentrated in the canopy area, and the wave-absorbing effect in the stem area is very small, which makes the wave-absorbing performance of traditional mangroves poor. There is also uncertainty about the resistance of the conditions

[0005] Among the many technical patents published at present, no technical scheme for the mutual coupling and mutual promotion of mangroves and submerged dikes has been proposed. Under the current world marine ecological disaster prevention and mitigation pattern, the realization of this coupling technology will be of great help to promote marine ecological disaster reduction and protect coastal waters. It is particularly important to improve the marine ecological environment for the safety of people's property in the region

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