CN210561974U

CN210561974U - Multifunctional seawall system

Info

Publication number: CN210561974U
Application number: CN201921158813.8U
Authority: CN
Inventors: 陈海英; 董永福; 孙鹏; 邹余; 田鹏; 丁洁
Original assignee: Shanghai Waterway Engineering Design and Consulting Co Ltd
Current assignee: Shanghai Waterway Engineering Design and Consulting Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-19
Anticipated expiration: 2029-07-23

Abstract

A multi-functional seawall system comprising: the sea-side dam comprises a main sea wall, an antegrade dam, a lattice dam and a beach-protection and silt-promotion area, wherein the antegrade dam is arranged on the wave-preventing side of the main sea wall in parallel, the lattice dam is vertically connected with the middle of the main sea wall and the antegrade dam, and the beach-protection and silt-promotion area is arranged among the main sea wall, the antegrade dam and the lattice dam. Wherein, the beach-protecting siltation-promoting area comprises: mudflat, aquatic plants, and benthos. The utility model discloses compare with the conventional art, add dam and check dam along with the waves through the wave-proof side of main seawall, can effectively weaken the wave, reduce the wave load of effect on main seawall structure, weaken the water and hold the sand ability with the sand, prevent the silt backward flow, promote the silt of falling of silt beach in the front of main seawall, thereby protect main seawall basis not by erosion and washing away, play the effect that the beach promoted the silt, the anti-skidding stability of the silt reinforcing main seawall of siltation in the front of the dike, improve stability factor of safety, for aquatic vegetation, benthos and birds provide the place of perching of growing, improve peripheral ecological environment, improve ecological benefits, large-scale aquatic plant's growth also plays certain unrestrained effect of breaking down.

Description

Multifunctional seawall system

Technical Field

The utility model relates to a hydraulic engineering/water conservancy project, concretely relates to multi-functional seawall system.

Background

The seawall is an important hydraulic structure for resisting sea wave invasion and protecting a building behind the seawall. In the traditional technology, the seawall usually only considers the protection function of the rear land area, the plane layout is simple, the structure function is single, and the ecological effect is poor. If the front beach of the single-structure seawall is not protected, the front beach is easily eroded and deeply washed by sea waves and water currents for a long time, and finally, the dike is empty and even the seawall is damaged unstably. And the beach foundation before the seawall is basically a smooth beach and lacks ecology.

In order to solve the above problems, we have made a series of improvements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-functional seawall system to overcome the above-mentioned shortcoming and not enough that prior art exists.

A multi-functional seawall system comprising: the sea-side dam comprises a main sea wall, an approach dam, a check dam and a beach-protection and silt-promotion area, wherein the approach dam is arranged on the wave-preventing side of the main sea wall in parallel, the check dam is vertically connected with the middle of the main sea wall and the approach dam, and the beach-protection and silt-promotion area is arranged among the main sea wall, the approach dam and the check dam;

wherein, the beach-protecting siltation promotion area comprises: the mudflat, the aquatic plant and the benthos are arranged at the bottom of the mud flat silt-promoting area, and the aquatic plant and the benthos are arranged in the mudflat.

Further, the flood control standard of the main seawall is 50 to 200 years.

Further, the distance between the dam and the main sea wall is 0.5-1.5 times of wavelength.

Further, the flood control standard of the dam is 25 to 50 years.

Further, the installation interval distance of the check dam is 500-1000 m.

Further, the flood control standard of the check dam is 25 years to 50 years.

The utility model has the advantages that:

the utility model discloses compare with the conventional art, add dam and check dam through the wave-proof side of main seawall, can effectively weaken the wave, reduce the wave load of effect on main seawall structure, also can weaken the water and hold the sand ability with the sand, prevent the silt backward flow, promote the silt of falling of silt beach before main seawall, thereby protect main seawall basis not corroded and erode, play the effect that the beach promoted silt, the anti-skidding stability of main seawall can be strengthened to the silt of siltation before the dyke simultaneously, improve stability factor of safety, also can regard as aquatic vegetation, benthos and birds provide the place of perching of growing, thereby improve peripheral ecological environment, improve ecological benefits, and large-scale aquatic plant's growth also plays certain unrestrained effect of breaking down.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a longitudinal sectional view of the present invention.

Fig. 3 is a transverse cross-sectional view of the present invention.

Reference numerals:

a main seawall 100, an antegrade dam 200, a check dam 300, a beach-protecting siltation-promoting area 400, a beach 410, aquatic plants 420 and benthonic organisms 430.

Detailed Description

The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.

Example 1

Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is a longitudinal sectional view of the present invention. FIG. 3 is a transverse cross-sectional view of the present invention

As shown in fig. 1, 2 and 3, a multi-functional seawall system includes: the sea-side dam comprises a main seawall 100, an antegrade dam 200, a check dam 300 and a beach-protection silt-promoting area 400, wherein the antegrade dam 200 is arranged on the wave-preventing side of the main seawall 100 in parallel, the check dam 300 is vertically connected with the middle of the main seawall 100 and the antegrade dam 200, and the beach-protection silt-promoting area 400 is arranged among the main seawall 100, the antegrade dam 200 and the check dam 300;

wherein, the beach-protecting siltation promotion area 400 comprises: the beach 410, the aquatic plants 420 and the benthos 430, wherein the beach 410 is arranged at the bottom of the beach-protecting and silt-promoting area 400, and the aquatic plants 420 and the benthos 430 are arranged in the beach 410.

The flood protection standard of the main seawall 100 is 50 years to 200 years.

The distance between the dam 200 and the main seawall 100 is 0.5-1.5 times of the wavelength.

The flood protection standard of the dam 200 is 25 years to 50 years.

The installation interval distance of the check dam 300 is 500 m-1000 m.

The flood protection standard of the check dam 300 is 25 years to 50 years.

The utility model discloses an theory of operation is, has carried out the integrated design with traditional hydraulic structure and has formed a multi-functional seawall system to confirm reasonable design parameter index, each partial function of full play, this utility model is through engineering practice inspection, and the effect is showing, can be applied to engineering such as reclamation fencing, coast protection.

The sea wall system starts from two aspects of waves and tidal currents. The dam 200 is located in front of the seawall and directly bears the action of external waves. The waves can be reduced by 20-40% after passing through the dam 200, the wave load acting on the main sea wall 100 structure is effectively reduced, the wave speed is reduced, and the sand-carrying capacity of the water body is weakened. A relatively closed space is formed to prevent the backflow of the silt and promote the silt falling of the beach in front of the main seawall 100. The lattice dam 300 is positioned at the side of the main seawall 100, and can effectively intercept the flow along the seawall. The water flow along the dike is blocked by the check dam, so that the dike legs can be effectively blocked and can not be continuously washed along the dike. The combined body system formed by the gate dam 200 and the lattice dam 300 protects the foundation of the main seawall 100 from erosion and scouring, and plays a role in beach protection and silt promotion. Meanwhile, the silt deposited in front of the main seawall 100 is used as ballast, so that the anti-skid stability of the main seawall 100 can be enhanced, and the stability and safety coefficient can be improved; in addition, the mud flat 410 with the natural silt height can also provide a growth habitat for aquatic vegetation, benthos and birds, so that the surrounding ecological environment is improved, and positive ecological benefits are achieved. Meanwhile, the growth of the large-scale aquatic plants also has a certain wave-dissipating function, and the wave-dissipating and flow-weakening effects are enhanced in turn.

The main seawall 100 is constructed with reference to relevant design and construction specifications, and the flood protection standard is taken to be 50 to 200 years. Constructing an embankment 200 at the wave-proof side of the main seawall 100, wherein the axis of the embankment 200 is parallel to the axis of the main seawall 100, and the distance between the embankment 200 and the main seawall is 0.5-1.5 times of the wavelength; flood protection standards for the dam 200 are taken to be 25 years to 50 years with the top elevation near the mean high water level. The lattice dam 300 is built between the front dam 200 and the main sea wall 100, the distance between every two lattice dams 300 is 500m to 1000m, the flood control standard is still 25 years to 50 years, and the dam crest elevation is between the average high water level and the average water level. The dam 200 not only can play a certain role in diversion, but also can help to reduce waves in the direction of the bank, and also can play a certain role in diversion, protect the main seawall 100 at the rear side, prevent the silt from flowing back, and promote siltation.

The above description has been made of the embodiments of the present invention, but the present invention is not limited thereto, and various changes may be made without departing from the spirit of the present invention.

Claims

1. A multi-functional seawall system, comprising: the sea-side dam comprises a main seawall (100), an on-dam (200), a check dam (300) and a beach-protection silt-promoting area (400), wherein the on-dam (200) is arranged on the wave-preventing side of the main seawall (100) in parallel, the check dam (300) is vertically connected with the middle of the main seawall (100) and the on-dam (200), and the beach-protection silt-promoting area (400) is arranged among the main seawall (100), the on-dam (200) and the check dam (300);

wherein the beach siltation promotion zone (400) comprises: the mud flat (410), the aquatic plant (420) and the benthos (430), the mud flat (410) is arranged at the bottom of the mud flat silt-promoting area (400), and the aquatic plant (420) and the benthos (430) are arranged in the mud flat (410).

2. A multi-functional seawall system according to claim 1, characterized in that: the flood control standard of the main seawall (100) is 50-200 years.

3. A multi-functional seawall system according to claim 1, characterized in that: the distance between the dam (200) and the main sea wall (100) is 0.5-1.5 times of wavelength.

4. A multi-functional seawall system according to claim 1 or 3, characterized in that: the flood control standard of the dam (200) is 25 to 50 years.

5. A multi-functional seawall system according to claim 1, characterized in that: the installation spacing distance of the check dam (300) is 500-1000 m.

6. A multi-functional seawall system according to claim 1 or 5, characterized in that: the flood control standard of the check dam (300) is 25 years to 50 years.