Beach maintenance method based on ecological floating island

Abstract

The invention provides a beach maintenance method based on an ecological floating island, and relates to the technical field of beach maintenance. The method comprises the following steps: S1, comprehensively surveying the water depth, wave characteristics, tidal changes and seabed conditions of a target area to determine the mounting position of a floating island; s2, heavy anchor points are fixed to the seabed, meanwhile, the positions and the depths of the anchor points are adjusted to adapt to the water level and wave conditions, and the bridge piles are driven into the bottom bed to provide additional supporting force; s3, the floating islands are sequentially assembled according to the sequence; and S4, the floating islands in the S3 are connected with the anchor points and the bridge piles, the floating islands can intercept sand grains carried by offshore flow, deposition of the sand beach can be increased through the natural process, and therefore sand beach loss is effectively prevented, the floating islands can provide diversified habitats for marine organisms, and recovery and stability of a regional ecological system are promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of beach maintenance, and in particular to a beach maintenance method based on an ecological floating island. Background Art

[0002] The beach is a valuable natural resource with important ecological, economic and social values. As a transition zone between land and sea, the beach not only has important ecological value, providing habitats and food sources for coastal organisms, supporting rich biodiversity, but also plays a vital protective role in flood control, storm surge mitigation and responding to sea level rise.

[0003] However, with the advancement of urbanization and the intensification of climate change, beaches are facing severe challenges such as erosion, pollution and ecological degradation. Therefore, strengthening the protection and sustainable management of beaches has become a global focus, especially in the implementation of effective maintenance, restoration and protection measures.

[0004] At present, my country's beach maintenance methods can be roughly divided into two categories: "soft" methods and "hard" methods. Each method has its own characteristics and is suitable for different beach environments and needs. The "hard" method mainly refers to the protection of beaches and the reduction of beach erosion by artificially building hard structures. Common hard methods include the construction of seawalls, offshore dikes and groins. Soft methods mainly rely on natural materials to replenish sand and protect beaches by changing or enhancing natural processes. Common soft methods include beach shoulder sand replenishment, sand dam sand replenishment, and beach surface sand replenishment. The beach maintenance method based on ecological solutions pays more attention to the use of natural restoration power, and effectively enhances the natural protection capacity of beaches and coastlines through means such as ecological floating islands, ecological barrier construction, and vegetation planting. At present, the application of beach maintenance methods based on ecological floating islands in my country is still basically blank. Summary of the invention

[0005] A technical problem to be solved by the present disclosure is that the existing beach protection methods cannot achieve both the ability to restore the beach and the protection of the ecological environment.

[0006] In order to solve the above technical problems, the present invention provides a beach maintenance method based on an ecological floating island, which comprises: S1. Conduct a comprehensive survey of the water depth, wave characteristics, tidal changes and seabed conditions in the target area to determine the installation location of the floating island; S2. Fix heavy anchors to the seabed, adjust the position and depth of the anchors to suit the water level and wave conditions, and drive bridge piles into the seabed to provide additional support; S3, assembling the floating islands in sequence; The floating island includes a plurality of floating island units, and the plurality of floating island units are flexibly connected; S4. Connect the floating island in S3 to the anchor points and bridge piles.

[0007] In some embodiments, in the aforementioned beach maintenance method based on ecological floating islands, the seabed condition in S1 is a hard seabed or a sandy seabed.

[0008] In some embodiments, in the aforementioned beach maintenance method based on ecological floating islands, the wave characteristics in S1 include wave height length, maximum wave height number, and wave propagation direction.

[0009] In some embodiments, in the aforementioned beach maintenance method based on ecological floating islands, the size of a single floating island unit in S3 is 2-4 meters in length and 2-4 meters in width.

[0010] In some embodiments, in the aforementioned beach maintenance method based on ecological floating islands, a plurality of vegetation units are arranged on the surface of the floating island unit, and the plurality of vegetation units are arranged at a longitudinal gradient along a lateral interval.

[0011] In some embodiments, in the aforementioned beach maintenance method based on ecological floating islands, the vegetation units include sand plants and aquatic plants.

[0012] Through the above technical scheme, the present disclosure provides a beach maintenance method based on ecological floating islands. The floating islands can disperse and weaken the wave energy when passing through through their irregular shapes and multiple hole designs, thereby reducing the impact of waves on the beach. The floating islands are installed at locations where the wave energy is strong in the water, which can effectively reduce the wave energy, and the maximum wave elimination rate can reach 60%, preventing waves from eroding the beach. At the same time, the floating islands can not only intercept the sand carried by the offshore currents, but also increase the deposition of the beach through natural processes, thereby effectively preventing the loss of the beach. The floating islands can also provide a variety of habitats for marine life and promote the recovery and stability of the regional ecosystem. As an eco-friendly protective structure, the floating island can be integrated into the natural environment of the beach, reduce the impact on the natural propagation of tides and waves, and achieve the goal of "restoring nature". Compared with traditional methods, the present invention provides an efficient, low-interference, and sustainable solution path for the field of beach protection through the application of ecological floating islands. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the top view structure of the floating island disclosed in the present invention; Figure 2 It is a schematic diagram of the installation structure of the floating island in the first embodiment disclosed in the present invention; Figure 3 It is a schematic diagram of the installation structure of the floating island in Example 2 disclosed in the present invention.

[0015] Description of reference numerals: 1. Bridge piles; 2. Floating island unit; 3. Anchor point. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0017] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0018] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0019] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0020] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0021] The overall conditions of the installation area of ​​this floating island are that the seabed condition is a sandy seabed and the wave propagation direction is directly opposite the coastline.

[0022] Embodiment 1 S1. Exploring the on-site environment.

[0023] S2. Install the anchoring system at a water depth of 4 meters. Use a pile-driving ship to sink anchor points 3 into the seabed. The anchor points 3 are made of stainless steel, each weighs 300 kg, and the anchoring depth is 2 meters. At the same time, install bridge piles 1. The bridge piles 1 are made of reinforced concrete, have a diameter of 20 cm, and are sunk to a depth of 4 meters. The top of the bridge pile 1 is connected to the bottom of the floating island through a rubber shock-absorbing pad, which can buffer the vibration caused by waves and extend the life of the floating island.

[0024] S3, assembling several floating island units 2, and combining them into a protective belt with a length of 9 meters and a width of 9 meters through flexible connectors. The connectors are made of tensile-resistant steel cables, and a certain amount of space is reserved so that the floating island can be flexibly adjusted under the action of waves; Among them, the size of a single floating island unit 2 is 3 meters × 3 meters, and the surface of the floating island unit 2 contains sand plants and aquatic plants. There is a certain interval between individual plants, and the interval distance is 10-30 cm (specifically set according to the growth characteristics of different plants) to avoid the growth of two adjacent plants affecting each other, and they are arranged towards the shore in the order of sand plants-aquatic plants-sand plants, and the floating island unit 2 where the plants are located is parallel to the horizontal plane.

[0025] S4. Fix the connected floating island to the bridge pile 1 through the anchoring system, and check the tightness and flexibility of the connection one by one. Two anchor points 3 are installed on each side of each floating island. The anchor points 3 are connected to the floating island through elastic steel cables to ensure that the floating island always remains stable under the impact of tides and waves. Bridge piles 1 are driven into the four corners of the floating island. The bridge pile 1 is made of reinforced concrete with a diameter of 20 cm and a pile depth of 5 meters to provide additional support. The top of the bridge pile 1 is connected to the bottom of the floating island through a rubber shock-absorbing pad, which can buffer the vibration caused by waves and extend the life of the floating island.

[0026] S5. According to Figure 1 and Figure 2 The structure shown is used to simulate the test of the floating island, and the displacement and vibration data of the floating island are detected under different wave conditions. The floating island is equipped with a vibration sensor and a distance sensor to monitor the displacement distance of the floating island affected by the wave and the vibration data, as shown in Table 1 below.

[0027] Table 1: Displacement data of Example 1 at different wave heights

[0028] Because there is a gradient between aquatic plants and sand plants in this case, the center of gravity of the floating island as a whole moves upward, so it is less affected by wave height, but is more affected by wind force, and the longitudinal displacement, that is, the vibration, changes greatly. Accordingly, it can effectively resist typhoons when facing typhoons. The area of ​​aquatic plants is far away from the bottom beach, which reduces the shaking of the sand body during vibration and effectively protects the beach.

[0029] Embodiment 2 The difference from Example 1 is: like Figure 1 , Figure 3 As shown, the aquatic plants in S3 are highly parallel to the horizontal plane, and the measured lateral and longitudinal displacement data are shown in Table 2 below.

[0030] Table 2: Displacement data of Example 2 at different wave heights

[0031] In this case, aquatic plants and sand plants are located in the same plane, so the center of gravity of the floating island as a whole is close to the horizontal plane. Therefore, it is more affected by the wave height and the lateral displacement changes greatly. However, the aquatic plants are closer to the bottom of the beach. As the plants grow, their roots can extend into the sand body, stabilize the sand body, and reduce the impact of waves on the sand body.

[0032] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0033] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A beach maintenance method based on ecological floating island, characterized in that: include: S1. Conduct a comprehensive survey of the water depth, wave characteristics, tidal changes and seabed conditions in the target area to determine the installation location of the floating island; The floating island is installed at the beach front edge or weak tide and strong wave area, and the water depth ranges from 2 to 8 meters to fully reduce wave energy and protect the beach. S2. Fix heavy anchors to the seabed, adjust the position and depth of the anchors to suit the water level and wave conditions, and drive bridge piles into the seabed to provide additional support; S3, assembling the floating islands in sequence; Wherein, the floating island comprises a plurality of floating island units, and the plurality of floating island units are flexibly connected; S4, connecting the floating island in S3 with anchor points and bridge piles.

2. A beach maintenance method based on ecological floating island according to claim 1, characterized in that: The seabed conditions in S1 are hard seabed or sandy seabed.

3. A beach maintenance method based on ecological floating island according to claim 1, characterized in that: The wave characteristics in S1 include wave height length, maximum wave height number, and wave propagation direction.

4. The beach maintenance method based on ecological floating island according to claim 1 is characterized in that: The floating island unit described in S3 has a size of 2-4 meters in length and 2-4 meters in width.

5. The beach maintenance method based on ecological floating island according to claim 1 is characterized in that: A plurality of vegetation units are arranged on the surface of the floating island unit, and the plurality of vegetation units are arranged in a longitudinal gradient along a lateral interval.

6. A beach maintenance method based on ecological floating island according to claim 5, characterized in that: The vegetation units include xerophytes and aquatic plants.

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