π-type pile foundation permeable breakwater with circular arc plate and its design method

Abstract

The invention discloses a Pi-shaped pile foundation open-typepermeable bulwark with an arc slab and a design method of the bulwark. The bulwark comprises a lower pile foundation and an upper wave blocking structure, wherein the wave blocking structure is supported by a beam on the pile foundation, and comprises the arc slab, web plates, a bottom plate and rib plates, the arc slab, the two web plates with the tops connected with the arc slab, and the bottom plate connected with the bottoms of the web plates form a Pi-shaped-section prefabricated member, and the rib plates fix the web plates and the bottom plate. The Pi-shaped pile foundation open-typepermeable bulwark has a good wave prevention effect, can effectively reduce high transmitted wave behind the bulwark and maintain berthing stability conditions in a harbor, and has a better mechanical characteristic, and the structure cannot be easily damaged by waves; besides, the bulwark adopts a pile foundation open-typepermeable structure, allows water exchange inside and outside the harbor , and is environment friendly.

Description

technical field [0001] The invention relates to a breakwater, in particular to a pile foundation permeable breakwater and a design method thereof. Background technique [0002] Since the pile-based permeable breakwater structure was proposed in the 1960s, it has achieved considerable development, and some of its structural types have been applied to practical projects. Existing permeable breakwaters mainly include pile-based baffle permeable dikes, comb-type permeable dikes, T-shaped permeable dikes, and inverted T-shaped permeable dikes. Although these traditional permeable breakwater structures have It has the advantages of low cost, convenient construction, and is suitable for soft foundations, but its disadvantages are also very obvious. For example, under the action of long-period waves, the wave dissipation effect of the permeable embankment is very limited. In addition, the superstructure of the permeable embankment often bears relatively large wave force, and the su...

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Problems solved by technology

[0003] Purpose of the invention: The purpose of the present invention is to address the deficiencies of the prior art, to provide a Π-shaped pile-based permeable breakwater with circular arc plates and its design method, using the energy dissipation structure surrounded by circular arc plates, webs and bottom plates to increase the dissipation of wave energy to reduce the transmitted wave height behind the embankment; to use the arc-shaped structure with better mechanical characteristics to reduce the possibility of damage to the upper structure due to greater force under harsh sea conditions , to overcome the defects that the existing structure has no obvious wave dissipation effect on long-period waves and the superstructure is easily damaged by waves

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