A beach protection device that adjusts itself according to the wave and current action form

Abstract

The present invention discloses a beach protection device that self-adjusts according to the wave and current action form. The present invention comprises a landward structural member with holes, a seaward structural member without holes, a direction-controlling structural member and a base structural member. The direction-controlling structural member is arranged between the landward structural member with holes and the seaward structural member without holes. The overall direction of the direction-controlling structural member is perpendicular to the main tidal direction, and under the action of the tidal force, two forms of tilting toward the sea and tilting toward the land are realized. The devices can be connected in pairs in sequence to form a device chain, and the required device chain is determined according to the length of the beach. The beach protection device disclosed in the present invention changes its form according to the direction of the tidal wave coupling action, which can reduce the erosion of the beach profile by waves and tidal currents, and has the characteristics of flexible and changeable length, good protection effect, and beautification of the coastal landscape.

Description

Technical Field

[0001] The invention belongs to a multi-form beach protection device, and in particular relates to a beach protection device which can self-adjust its form according to the action of waves and currents. Background Art

[0002] my country has abundant coastlines and large beach areas, providing vast land resources for high-intensity human activities. Sandy beaches are the most widely distributed beach type on the coast, the most severely affected by typhoons, and the most severe coastal erosion. Coastal erosion, a global trend, has generally attracted widespread attention.

[0003] Coastal erosion refers to the process in which the supply of sand within the coastal area is less than the loss under the action of ocean dynamics, resulting in beach degradation and coastline retreat. In order to slow down the losses caused by coastal erosion, a variety of methods have been applied to local coasts. Through engineering measures, the law of sediment transport near the coast is changed to increase sediment deposition or reduce erosion.

[0004] Engineering measures are mainly divided into coastal structures such as artificial seawalls, groins, and offshore dikes, and artificial sand replenishment or land reclamation projects. Artificial seawalls are usually used to resist erosion of the coastline by tides and waves, and are usually not used to protect beaches; groins and offshore dikes will intercept a large amount of sediment, which is not conducive to beach formation, especially on sandy coasts. Artificial sand replenishment and other projects are essentially to make up for the loss of the beach under natural conditions. Sand replenishment is required every few years, which has a high economic cost. Summary of the invention

[0005] The invention provides a beach protection device which can adjust itself according to the wave and current action form, which makes up for the shortcoming of artificial dams in blocking incoming sand and can effectively protect the beach.

[0006] The present invention is specifically implemented through the following technical solutions:

[0007] The invention comprises a land-oriented structural member with holes, a sea-oriented structural member without holes, a direction-controlling structural member, an intermediate connecting structural member and a base structural member.

[0008] The surface of the landward structural member with holes is uniformly distributed with array capsule-shaped holes for the bottom water body and sediments in the water body to pass through; it is installed on the shoreward side of the intermediate connecting structural member.

[0009] The seaward structural member without holes is used to block the water body and the sediment in the water body; it is installed on the seaward side of the intermediate connecting structural member.

[0010] The direction-controlling structural member is installed in the middle of the intermediate connecting structural member, perpendicular to the land-oriented structural member with holes and the sea-oriented structural member without holes; and is used to control the overall shape of the entire beach protection device.

[0011] The intermediate connecting structure is installed on the base structure and is used to connect other structures.

[0012] The invention discloses a beach protection device which changes its shape following the direction of tidal wave coupling, can reduce the erosion of the beach profile by waves and tidal currents, has the characteristics of flexible and changeable length, good protection effect, and beautification of the coastal landscape. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall layout diagram of the device of the present invention;

[0014] Figure 2 It is a front view and a side view of a landward structure with holes and a seaward structure without holes of the device of the present invention;

[0015] Figure 3 It is a front view and a side view of the structural member for controlling the direction and the intermediate connecting structural member of the device of the present invention;

[0016] Figure 4 is a front view of a base structure of the device of the present invention;

[0017] The numbers in the figure are:

[0018] 1 Seaward structural member without holes, 1.1 Front view of seaward structural member without holes, 1.2 Side view of seaward structural member without holes, 2 Landward structural member with holes, 2.1 Front view of landward structural member with holes, 2.2 Side view of landward structural member with holes Figure 3 Structural parts that control the direction, 3.1 Front view of structural parts that control the direction, 3.2 Side view of structural parts that control the direction, Figure 4 Intermediate connecting structure, 4.1 front view of intermediate connecting structure, 4.2 side view of intermediate connecting structure, 5 base structure, 6 tidal energy power generation equipment, 7 capsule-shaped hole, 8 convex tenon of land-oriented structure, 9 convex tenon of sea-oriented structure, 10 convex tenon of direction-controlling structure, 11 cross tenon of intermediate connecting member, 12 cross mortise of intermediate connecting member, 13 convex mortise connecting sea-oriented structure, 14 convex mortise connecting direction-controlling structure, 15 convex mortise connecting land-oriented structure, 16 connecting member between base structure and intermediate connecting structure, 17 conical fixing structure DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0020] The present invention provides a beach protection device that is self-adjusting according to the wave and current action form, comprising a landward structural member with holes, a seaward structural member without holes, a direction control structural member, an intermediate connecting structural member and a base structural member;

[0021] The surface of the landward structural member with holes is evenly distributed with 7×4 capsule-shaped holes for the bottom water body and sediments in the water body to pass through; it is installed on the shoreward side of the intermediate connecting structural member.

[0022] The seaward structural member without holes is used to block the water body and the sediment in the water body; it is installed on the seaward side of the intermediate connecting structural member.

[0023] The direction-controlling structural member is installed in the middle of the intermediate connecting structural member, perpendicular to the land-oriented structural member with holes and the sea-oriented structural member without holes; and is used to control the overall shape of the entire beach protection device.

[0024] The intermediate connecting structure is installed on the base structure and is used to connect other structures.

[0025] Preferably, the base structural member includes a main load-bearing part, a bottom conical fixing structure and an upper cylindrical connecting structure; the main load-bearing part is in a step-shaped form; the bottom conical fixing structure is an integral part of the main load-bearing part, and a total of four structures are distributed on the four bottom corners of the main load-bearing part, and are used to fix the base structural member on the seabed; the upper cylindrical connecting structure is an integral part of the main load-bearing part, and is distributed on the upper part of the main load-bearing part, and is used to connect with the intermediate structural member.

[0026] Preferably, the intermediate connecting structure includes a variety of connecting structures; the structure is hollow inside as a whole, and there is a 120° hollowing out on the surface near the middle position, which is used to connect with the base structure and meet the requirement of rotation; the left, right and upper parts of the intermediate connecting structure are provided with longitudinally extending T-shaped grooves at 90° intervals, which are respectively used to connect with the land-oriented structure with holes, the sea-oriented structure without holes and the structure for controlling the direction; the two ends of the intermediate connecting structure include a protruding cross structure and a concave cross structure, which are used to connect the devices to each other to form a device chain.

[0027] Preferably, the beach protection device is arranged underwater below the lowest tide line; the beach device monomers are connected to each other to form a device chain with adjustable length, the device chain is arranged perpendicular to the main tide direction, and the length of the device chain can be adjusted according to the length of the beach.

[0028] The working principle of the device of the present invention is as follows:

[0029] High Tide Period:

[0030] During high tide, the tidal current moves toward the shore. When the high tidal current passes through the device, it generates thrust on the directional control structure, causing the device to present an inclined state with the sea-facing structure without holes rising and the land-facing structure with holes falling. The water above the device flows toward the shore normally, while the water below the maximum height of the device is blocked by the main body of the device, forming a vortex. The water will carry more sediment, and part of the water will flow toward the shore through the holes of the land-facing structure below, carrying sediment toward the shore at the same time. The sediment carried by the water settles during the process of being transported toward the shore.

[0031] Low tide period:

[0032] During low tide, the tidal current moves offshore. When the low tide passes through the device, it generates thrust on the directional control structure, causing the device to present an inclined state with the landward structure with holes rising and the seaward structure without holes falling. The water above the device flows offshore normally, and the water below the maximum height of the device is blocked by the main body of the device, forming a vortex. The water close to the bottom bed will carry more sediments, while the seaward structure without holes below blocks the seaward transport of water and sediments. Ultimately, the sediments carried by the water will remain on the shore side.

[0033] The beach protection device achieves the protection of beach sediments by retaining the ability of the rising tide to transport sediments to the shore and reducing the ability of the falling tide to transport sediments offshore.

[0034] like Figure 1 As shown, this embodiment includes a sea-oriented structure 1 without holes, a land-oriented structure 2 with holes, a direction-controlling structure 3, an intermediate connecting structure 4 and a base structure 5. The structures 1, 2, 3, 5 are connected to the intermediate connecting structure 4 through a specific mortise and tenon structure or other connecting parts, and are fixedly placed on the seabed through the base structure 5.

[0035] like Figures 2 to 4 As shown, the sea-oriented structure 1 without holes is connected to the convex mortise 13 on the intermediate connecting structure 4 through the convex tenon 9; the land-oriented structure 2 with holes is connected to the convex mortise 15 on the intermediate connecting structure 4 through the convex tenon 8; the direction-controlling structure 3 is connected to the convex mortise 14 on the intermediate connecting structure 4 through the convex tenon 10; the base structure 5 is connected to the cavity at the bottom of the middle of the intermediate connecting structure 4 through the cylindrical structure 16. The cross-shaped mortise and tenon 11, 12 on the intermediate connecting structure are connected to each other in pairs to form a device chain with controllable length; the six conical fixing structures 17 on the base structure 5 are used to embed into the seabed to achieve fixing.

[0036] The tidal current energy generating device 6 is installed on the seaward side of the direction control structure 3 in the device, collecting the tidal current energy from the tidal rise and fall and converting it into electrical energy. During the ebb and flow process, the sand-carrying water body can be exchanged between land and sea through the capsule-shaped holes 7.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that several improvements and supplements may be made without departing from the principles of the present invention, and these improvements and supplements should also be regarded as the scope of protection of the present invention.

Claims

1. A beach protection device that adjusts itself to the wave and current, characterized in that: It includes land-oriented structural members with holes, sea-oriented structural members without holes, structural members for controlling direction, intermediate connecting structural members and base structural members; The surface of the landward structure with holes is evenly distributed with array capsule-shaped holes for the bottom water body and sediments in the water body to pass through; Installed on the shore side of the intermediate connecting structure; The non-porous seaward structure is used to block the water body and the sediment in the water body; Installed on the seaward side of the intermediate connecting structure; The direction-controlling structural member is installed in the middle of the intermediate connecting structural member, perpendicular to the land-oriented structural member with holes and the sea-oriented structural member without holes; and is used to control the overall shape of the entire beach protection device; The intermediate connecting structure is installed on the base structure and is used to connect other structures; High Tide Period: During the high tide period, the tide moves toward the shore. When the high tide passes through the device, it generates thrust on the structural parts that control the direction, causing the device to present an inclined state in which the sea-facing structural parts without holes rise and the land-facing structural parts with holes fall. The water above the device flows toward the shore normally, and the water below the maximum height of the device is blocked by the main body of the device, forming a vortex. The water will carry more sediments, and part of the water will flow toward the shore through the holes of the land-facing structural parts below, while carrying sediments to the shore. The sediments carried by the water will settle in the process of being transported toward the shore. Low tide period: During low tide, the tidal current moves offshore. When the low tide passes through the device, it generates thrust on the directional control structure, causing the device to present an inclined state with the landward structure with holes rising and the seaward structure without holes falling. The water above the device flows offshore normally, and the water below the maximum height of the device is blocked by the main body of the device, forming a vortex. The water close to the bottom bed will carry more sediments, while the seaward structure without holes below blocks the seaward transport of water and sediments, and ultimately the sediments carried by the water will remain on the shore side.

2. A beach protection device that self-adjusts with the wave and current action form according to claim 1, characterized in that: The intermediate connecting structure includes a variety of connecting structures; the structure is hollow inside as a whole, and there is a 120° hollowing on the surface near the middle position, which is used to connect with the base structure and meet the requirement of rotation; The left, right and upper parts of the intermediate connecting structure are provided with longitudinally extending T-shaped grooves at intervals of 90°, which are respectively used for connecting with the land-oriented structure with holes, the sea-oriented structure without holes and the structure for controlling the direction; The two ends of the intermediate connecting structure include a protruding cross-shaped tenon and a concave cross-shaped mortise, which are used to connect the devices to each other to form a device chain.

3. The beach protection device that self-adjusts with the wave and current according to claim 1 is characterized by: The base structure comprises a main load-bearing part, a bottom conical fixing structure and an upper cylindrical connecting structure; The main body load-bearing part is in a step-shaped form; The bottom conical fixing structure is integrated with the main body load-bearing part, and there are four of them distributed on the four bottom corners of the main body load-bearing part, which are used to fix the base structure on the seabed; The upper cylindrical connection structure is integrated with the main body load-bearing part, distributed on the upper part of the main body load-bearing part, and is used for connection with the intermediate structural member.

4. The beach protection device that self-adjusts with the wave and current action form according to claim 2 is characterized by: The beach protection device is arranged underwater below the lowest tide line; the beach protection device monomers are connected to each other to form a device chain with adjustable length, the device chain is arranged perpendicular to the main tidal direction, and the length of the device chain is adjusted according to the length of the beach.

5. A beach protection device that self-adjusts with the wave and current according to any one of claims 1 to 4, characterized in that: The beach protection device includes a tidal energy power generation device, which is installed on the seaward side of the direction-controlling structure; the device is used to collect tidal energy during the rise and fall of seawater and convert it into electrical energy.

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