Seawall top assembly type modular wave wall and construction method

Abstract

The invention discloses a seawall top assembly type modular wave wall and a construction method, and belongs to the technical field of water conservancy projects. Comprising a plurality of stand columns arranged on the seawall top at intervals, and a water accumulation groove and a wave-resistant wall body are detachably arranged between every two adjacent stand columns. Wherein the top of the water accumulation tank is open. The wave-proof wall body is connected with the top surface of the side wall of the water accumulation tank. The water accumulation groove, the wave-proof wall body and the stand columns can form a wave-proof barrier. Wherein the stand columns, the water accumulation tank and the wave-resistant wall body are all prefabricated parts, can be manufactured and stored in a factory in advance, and can be assembled on the top of a seawall when needed. When the tide water flies, the water accumulating tank and the wave-resistant wall body can be detached and stored, erosion caused by wind, sunlight, water flow and the like due to long-term outdoor exposure is avoided, tourists can get close to the seaside conveniently, and the contradiction between the small-probability tide water and daily seawall hydrophilicity is effectively relieved. Water flow is collected through the water accumulation groove, so that the overall weight of the wave wall is increased, and the overall stability of the wave wall is improved.

Description

Technical Field

[0001] This application relates to the field of water conservancy projects, and particularly to a prefabricated modular wave - breaking wall on the top of a seawall and a construction method thereof. Background Art

[0002] Seawalls are built along the sea, mainly used to protect the land along the sea from being eroded by water flow, and are important facilities for resisting tides and typhoons. In order to more effectively prevent waves from crossing the top of the seawall, a wave - breaking wall is often set on the seaward side of the top of the seawall. By using the physical barrier effect of the wave - breaking wall, the impact of waves on the inland is reduced.

[0003] Traditional wave - breaking walls are generally fixedly set at the water - retaining front position on the top of the seawall. Although they can play a role in blocking waves to a certain extent, they also have many limitations. First of all, the wave - breaking walls are placed outdoors for a long time and are greatly affected by erosion such as wind, sunlight and water flow, and are easy to be damaged. In addition, under most non - extreme weather conditions, these wave - breaking walls often become unnecessary visual obstacles, which not only affect the beauty of the environment around the seawall, but also limit the public's opportunity to get close to natural waters, and reduce the functionality of the seawall as a public leisure space. Summary of the Invention

[0004] The purpose of this application is to provide a prefabricated modular wave - breaking wall on the top of a seawall and a construction method thereof, which are used to solve the problems that the wave - breaking wall fixedly set on the top of the seawall in the prior art is easy to be damaged and affects the sight line of the seawall.

[0005] To solve the above - mentioned technical problems, the following technical solutions are adopted in this application:

[0006] On the one hand, this application provides a prefabricated modular wave - breaking wall on the top of a seawall, including:

[0007] A plurality of columns, spaced apart and arranged on the top of the seawall;

[0008] A water - collecting trough, detachably arranged between two adjacent columns, and the top of the water - collecting trough is open;

[0009] A wave - breaking wall body, detachably arranged between two adjacent columns, and the wave - breaking wall body is connected to the top surface of the side wall of the water - collecting trough.

[0010] In this solution, by installing the water - collecting trough and the wave - breaking wall body between two adjacent columns, a wave - breaking barrier is formed. The columns, the water - collecting trough and the wave - breaking wall body are all prefabricated parts, which can be pre - manufactured and stored in the factory and assembled on the top of the seawall when needed. Through modular design, not only the on - site construction process is simplified, but also the construction period is greatly shortened and the construction cost is reduced. And the prefabricated form can ensure the consistency of the quality and size of each part, improving the stability and durability of the overall structure.

[0011] When the tide ebbs, the water collecting trough and the wave - preventing wall can be disassembled and stored, avoiding the long - term exposure of the water collecting trough and the wave - preventing wall outdoors to erosion by wind, sunlight, water flow, etc. And it can facilitate tourists to approach the sea, effectively alleviating the contradiction between the small - probability tide and the hydrophilicity of the daily seawall.

[0012] In addition, since the wave impact challenges the stability of the columns, this solution uses the water collecting trough to relieve the pressure on the columns. Specifically, the water collecting trough is located on the side facing the sea and can collect the water flow blocked by the wave - preventing wall into the trough, thereby increasing the overall weight of the wave - preventing wall. This increase in weight helps to better resist the impact of waves, and the presence of the water collecting trough also effectively relieves the stress concentration at the connection between the bottom of the column and the top of the seawall, improving the overall stability of the wave - preventing wall.

[0013] Optionally, fixing grooves are provided on the two opposite sides of the column in the length direction. The fixing grooves have openings at the top of the column. First fixing parts that fit with the fixing grooves are provided on the two opposite sides of the water collecting trough, and second fixing parts that fit with the fixing grooves are provided on the two opposite sides of the wave - preventing wall.

[0014] As a support structure, the fixing grooves provided on the two opposite sides of the column in the length direction provide stable connection points for the installation of the water collecting trough and the wave - preventing wall. The first fixing parts designed on the two opposite sides of the water collecting trough fit with the fixing grooves on the column, realizing the rapid installation of the water collecting trough. The second fixing parts designed on the two opposite sides of the wave - preventing wall also fit with the fixing grooves on the column, ensuring the stable installation of the wave - preventing wall.

[0015] During installation, first insert the first fixing parts on the two opposite sides of the water collecting trough into the relatively - arranged fixing grooves on two adjacent columns respectively from the top of the column. Then, insert the second fixing parts on the wave - preventing wall into the fixing grooves in the same way, forming a complete wave - preventing barrier together with the water collecting trough. Through the fitting design of the fixing grooves and the fixing blocks, the rapid installation and disassembly of the water collecting trough and the wave - preventing wall are realized, improving the construction efficiency and maintenance convenience.

[0016] Optionally, a connecting part is provided at the top of the side wall of the water collecting trough on one side of the first fixing part, and a slot for inserting the wave - preventing wall is provided at the top end of the connecting part.

[0017] When the wave - preventing wall is inserted and installed on the column, the bottom of the wave - preventing wall can also be inserted into the slot at the same time. This connection method ensures the stability between the wave - preventing wall and the water collecting trough, improves the integrity and protection ability of the entire wave - preventing wall. At the same time, this connection method simplifies the construction process, reduces the construction time and cost, and improves the construction efficiency.

[0018] Optionally, a receiving groove is opened on the top of the seawall, and the receiving groove is used to place the water collecting trough.

[0019] In this solution, a receiving groove is opened on the top of the seawall, and the water collecting tank is placed in the receiving groove. The receiving groove can limit and fix the water collecting tank, making the entire wave breakwall more firm. Due to assembly errors, there will be gaps between the water collecting tank and the receiving groove, resulting in the possibility of the water collecting tank shaking or displacing in the receiving groove under the impact of waves, causing damage to the wave breakwall or the top of the seawall. And the water collected in the water collecting tank can ensure the stability of the wave breakwall. In addition, the design of the water collecting tank in the receiving groove can also collect these waters faster.

[0020] Optionally, the upright posts are provided with first jacks and second jacks. The first jacks and the second jacks on each upright post are respectively connected by a plurality of support rods. Both ends of each support rod respectively have a concave portion and a convex portion, and the plurality of support rods are inserted and connected through the concave portion and the convex portion; the support rods located in the first jacks are in contact with the side of the wave breakwall body facing away from the sea surface, and the support rods located in the second jacks are in contact with the side of the water collecting tank facing away from the sea surface.

[0021] Due to the uncertainty of waves, impacts may occur between adjacent upright posts. A large number of wave breakwalls composed of upright posts, wave breakwall bodies and water collecting tanks need to be arranged on a long seawall line. When a wave impacts one of them or a section, it may cause the wave breakwall to longitudinally break at the joints of the upright posts and the wave breakwall bodies and the water collecting tanks. In this solution, a first jack is arranged on the upright post, and a support rod is arranged in the first jack to provide support for the wave breakwall body. By arranging a second jack and arranging a support rod in the second jack to provide support for the water collecting tank, a more stable structure is formed, improving the resistance of the wave breakwall to wave impacts.

[0022] On the other hand, the present application provides a construction method, adopting the above-mentioned prefabricated modular wave breakwall on the top of the seawall, including the following steps:

[0023] S1: Prefabricate upright posts, water collecting tanks and wave breakwall bodies in the factory;

[0024] S2: Arrange upright posts at intervals on the top of the seawall;

[0025] S3: Install a water collecting tank between two adjacent upright posts;

[0026] S4: Install a wave breakwall body between two adjacent upright posts.

[0027] Optionally, the horizontal distance between the upright post and the water retaining front edge of the top of the seawall is greater than 10% of the horizontal distance between the water retaining front edge of the breast wall at the top of the seawall and the bottom end of the toe protection at the top of the seawall.

[0028] When the wave passes through the front of the parapet wall at the top of the dike and during its movement on the top of the seawall, the wave force will have a certain attenuation. This attenuation is caused by the interaction between the wave and the structure at the top of the dike, as well as the energy dissipation of the wave during its propagation. According to the attenuation characteristics of the wave, the setting position of the wave breakwall in this solution is restricted. Specifically, the horizontal distance between the column and the water-retaining front edge of the seawall top is set to be greater than 10% of the horizontal distance between the water-retaining front edge of the parapet wall at the top of the dike and the bottom end of the seawall toe protection. Through this position optimization, the total horizontal wave force received by the wave breakwall is significantly reduced. When the wave breakwall is in this position, the total horizontal wave force it receives is not greater than 65% of the total horizontal wave force when the wave breakwall is at the water-retaining front edge of the dike top. Due to the reduction of the wave impact force, the design of the wave breakwall can be thinner, lighter and lower. This not only reduces the weight of the structure and material consumption, but also makes the seawall have a better line of sight and be more beautiful.

[0029] Compared with the prior art, the beneficial effects achieved by this application: By installing the water accumulation trough and the wave breakwall body between two adjacent columns, a wave protection barrier is formed. The columns, the water accumulation trough and the wave breakwall body are all prefabricated components, which can be pre-manufactured and stored in the factory and assembled onto the top of the seawall when needed. Through the modular design, not only the on-site construction process is simplified, but also the construction period is greatly shortened and the construction cost is reduced.

[0030] When the tide ebbs, the water accumulation trough and the wave breakwall body can be disassembled and stored, which avoids the long-term exposure of the water accumulation trough and the wave breakwall body outdoors to be eroded by wind, sunlight, water flow, etc., and enables tourists to approach the sea easily, effectively alleviating the contradiction between the small-probability tide and the hydrophilicity of the daily seawall.

[0031] In addition, since the wave impact poses a challenge to the stability of the column, in this embodiment, the water accumulation trough is used to relieve the pressure on the column. The water accumulation trough can collect the water flow blocked by the wave breakwall body into the trough, thereby increasing the overall weight of the wave breakwall. This increase in weight helps to better resist the wave impact, and the presence of the water accumulation trough also effectively alleviates the stress concentration at the connection between the bottom of the column and the top of the seawall, improving the overall stability of the wave breakwall. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 is the overall structural schematic diagram of some embodiments provided by this application;

[0034] Figure 2 It is a top view of a column in some embodiments provided by the present application;

[0035] Figure 3 It is a top view of a water accumulation trough in some embodiments provided by the present application;

[0036] Figure 4 It is a top view of a wave - proof wall body in some embodiments provided by the present application;

[0037] Figure 5 It is a schematic structural diagram of a water accumulation trough in some embodiments provided by the present application;

[0038] Figure 6 It is a schematic structural diagram of a column in some embodiments provided by the present application;

[0039] Figure 7 It is a structural diagram of a support rod in some embodiments provided by the present application.

[0040] Explanation of reference numerals: 1 - column; 2 - top of seawall; 3 - water accumulation trough; 4 - wave - proof wall body; 5 - permeable grate; 6 - support rod; 7 - support frame; 8 - handrail; 11 - fixing groove; 12 - first jack; 13 - second jack; 21 - accommodating groove; 31 - first fixing part; 32 - connecting part; 33 - slot; 41 - second fixing part; 61 - convex part; 62 - concave part; Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present disclosure / the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation on the present application and its application or use.

[0042] Embodiment 1

[0043] This embodiment introduces a prefabricated modular wave - proof wall device for the top of a seawall. Referring to Figure 1 and Figure 2 , the prefabricated modular wave - proof wall on the top of the seawall 2 in this embodiment includes a plurality of columns 1 spaced apart on the top of the seawall 2, and a water accumulation trough 3 and a wave - proof wall body 4 are detachably arranged between two adjacent columns 1. Among them, the top of the water accumulation trough 3 is open. The wave - proof wall body 4 is connected to the top surface of the side wall of the water accumulation trough 3.

[0044] In this embodiment, by installing the water accumulation trough 3 and the wave - proof wall body 4 between two adjacent columns 1, a wave - proof barrier is formed. The columns 1, the water accumulation trough 3 and the wave - proof wall body 4 are all prefabricated components, which can be pre - manufactured and stored in a factory and assembled onto the top of the seawall 2 when needed. Through modular design, not only the on - site construction process is simplified, but also the construction period is greatly shortened and the construction cost is reduced. Moreover, the prefabricated form can ensure the consistency of the quality and size of each component, improving the stability and durability of the overall structure.

[0045] Among them, the columns 1 are cast - in - place and connected to the top of the seawall 2 at equal intervals of 5m. Before the tide comes, only the water accumulation trough 3 and the wave - proof wall body 4 need to be installed on the already arranged columns 1. Since the water accumulation trough 3 and the wave - proof wall body 4 are both prepared in advance, only simple assembly and fixation are required on - site, greatly shortening the construction time. When the tide ebbs, the water accumulation trough 3 and the wave - proof wall body 4 can be disassembled and stored, avoiding the long - term exposure of the water accumulation trough 3 and the wave - proof wall body 4 to wind, sunlight, water flow and other erosions outdoors. And it can facilitate tourists to approach the sea, effectively alleviating the contradiction between small - probability tides and the hydrophilicity of the daily seawall.

[0046] In addition, due to the challenge of the wave impact to the stability of the column 1, in this embodiment, the water accumulation trough 3 is used to relieve the pressure on the column 1. Specifically, the water accumulation trough 3 is located on the sea - facing side, which can collect the water flow blocked by the wave - proof wall body 4 into the trough, thereby increasing the overall weight of the wave - proof wall. This increase in weight helps to better resist the impact of waves, and the existence of the water accumulation trough 3 also effectively relieves the stress concentration at the connection between the bottom of the column 1 and the top of the seawall 2, improving the overall stability of the wave - proof wall.

[0047] Embodiment Two:

[0048] Based on the same inventive concept as Embodiment One, referring to Figure 1 and Figure 2 , in the prefabricated modular wave - proof wall on the top of the seawall 2 in this embodiment, fixing grooves 11 are provided on the two opposite sides of the column 1 in the length direction. The fixing grooves 11 have openings at the top of the column 1. First fixing parts 31 that fit with the fixing grooves are provided on the two opposite sides of the water accumulation trough 3, and second fixing parts 41 that fit with the fixing grooves are provided on the two opposite sides of the wave - proof wall body 4.

[0049] As a support structure, the fixing grooves 11 provided on the two opposite sides of the column 1 in the length direction provide stable connection points for the installation of the water accumulation trough 3 and the wave - proof wall body 4. The first fixing parts 31 designed on the two opposite sides of the water accumulation trough 3 fit with the fixing grooves 11 on the column 1, realizing the rapid installation of the water accumulation trough 3. The second fixing parts 41 designed on the two opposite sides of the wave - proof wall body 4 also fit with the fixing grooves 11 on the column 1, ensuring the stable installation of the wave - proof wall body 4.

[0050] During installation, first insert the first fixing parts 31 on two opposite sides of the water accumulation trough 3 from the top of the upright column 1 into the oppositely arranged fixing grooves 11 on two adjacent upright columns 1 respectively. Then, insert the second fixing parts 41 on the wave-proof wall body 4 into the fixing grooves 11 in the same way to form a complete wave-proof barrier together with the water accumulation trough 3. Through the fitting design of the fixing grooves 11 and the fixing blocks, the rapid installation and disassembly of the water accumulation trough 3 and the wave-proof wall body 4 are realized, improving the construction efficiency and maintenance convenience.

[0051] Furthermore, at the top of one side wall of the water accumulation trough 3 where the first fixing part 31 is located, there is a connecting part 32, and at the top of the connecting part 32, there is a slot 33 for the wave-proof wall body 4 to be inserted and embedded. When the wave-proof wall body 4 is inserted and installed on the upright column 1, the bottom of the wave-proof wall body 4 can also be inserted into the slot 33 at the same time. This connection method ensures the stability between the wave-proof wall body 4 and the water accumulation trough 3, improving the integrity and protection ability of the entire wave-proof wall. At the same time, this connection method simplifies the construction process, reduces the construction time and cost, and improves the construction efficiency.

[0052] In this embodiment, a receiving groove 21 is opened on the top of the seawall 2, and the receiving groove 21 is used to place the water accumulation trough 3.

[0053] A receiving groove 21 is opened on the top of the seawall 2, and the water accumulation trough 3 is placed in the receiving groove 21. The receiving groove 21 can limit and fix the water accumulation trough 3, making the entire wave-proof wall more firm.

[0054] It should be noted that in this embodiment, the water accumulation trough 3 still has the function of relieving the pressure on the upright column 1 and improving the overall stability of the wave-proof wall. Specifically, due to assembly errors, there will be gaps between the water accumulation trough 3 and the receiving groove 21. And in some construction environments, for the convenience of installing the water accumulation trough 3, the receiving groove 21 is also slightly larger than the water accumulation trough 3. This may cause the water accumulation trough 3 to shake or displace in the receiving groove 21 under the impact of waves, resulting in damage to the wave-proof wall or the top of the seawall 2. However, the water collected in the water accumulation trough 3 can ensure the stability of the wave-proof wall.

[0055] In addition, since multiple small waves will appear first before large waves come, and the small waves cannot reach the higher position of the top of the seawall 2, the design of the water accumulation trough 3 in the receiving groove 21 can collect these water flows faster, making full preparations for resisting large waves.

[0056] As an alternative implementation, the water accumulation trough 3 can be completely located within the receiving groove 21 to collect the waves hitting along the top of the seawall. This design further improves the collection efficiency of the water accumulation trough 3 and the stability of the wave-proof wall.

[0057] To prevent debris in the waves from entering the water collecting trough 3, in this embodiment, a permeable grate 5 is provided at the top of the water collecting trough 3. The aperture of the permeable grate 5 is not greater than 5 mm, and the surface is coated with an anti-corrosion coating.

[0058] Due to the uncertainty of the waves, impacts may occur between adjacent columns 1. A large number of wave protection walls composed of columns 1, wave protection walls 4 and water collecting troughs 3 need to be arranged on a long seawall line. When the waves impact one of them or a section, it may cause the wave protection wall to longitudinally break at the joints of the column 1 and the wave protection wall 4 and the water collecting trough 3. To avoid the above problems, this embodiment also realizes reinforcement by setting the first socket 12, the second socket 13 and the support rod 6. Specifically, the column 1 is provided with the first socket 12 and the second socket 13. The first sockets 12 on each column 1 and the second sockets 13 are respectively connected by a plurality of support rods 6. Both ends of each support rod 6 respectively have a concave portion 62 and a convex portion 61. The plurality of support rods 6 are inserted and connected through the concave portion 62 and the convex portion 61; the support rod 6 located in the first socket 12 abuts against the side of the wave protection wall 4 facing away from the sea surface, and the support rod 6 located in the second socket 13 abuts against the side of the water collecting trough 3 facing away from the sea surface.

[0059] In this embodiment, the first socket 12 is provided on the column 1, and the support rod 6 is provided in the first socket 12 to provide support for the wave protection wall 4. By providing the second socket 13 and providing the support rod 6 in the second socket 13 to provide support for the water collecting trough 3, a more stable structure is formed, and the resistance of the wave protection wall to wave impact is improved.

[0060] As an alternative embodiment, a plurality of first sockets 12 and second sockets 13 can be pre-set on the column 1, and the support rods 6 are selectively inserted according to the frequency or impact force of the wave impact area. In the sections that are easily affected by the waves, the number of support rods 6 can be increased to improve the overall stability and safety.

[0061] In this embodiment, a support frame 7 is provided on the side of the wave protection wall 4 facing away from the waves. The support frame 7 is arranged on the side of the wave protection wall 4 facing away from the waves, and its main function is to provide additional support force and enhance the overall stability of the wave protection wall 4.

[0062] In addition, a handrail 8 is also provided at the top of the wave protection wall 4 in this embodiment. The handrail 8 can provide stable support for pedestrians and prevent them from losing balance due to wave impact or excessive wind force. The support frame and the handrail 8 in this embodiment can also be in a prefabricated form and are connected to the wave protection wall 4 by bolts.

[0063] Embodiment Three:

[0064] This embodiment introduces a construction method for an assembled modular wave protection wall at the top 2 of a seawall, referring to Figure 1, the construction method includes the following steps:

[0065] S1: Prefabricate columns 1, water accumulation troughs 3 and wave - proof walls 4 in the factory.

[0066] Among them, the sizes of the water accumulation trough 3 and the wave - proof wall 4 can be determined according to the layout spacing of the columns 1. It should be noted that in this embodiment, the columns 1 can be arranged at equal intervals or unequal intervals, which can be determined according to the actual wave - proof requirements.

[0067] S2: Arrange columns 1 at intervals on the sea - dike crest 2.

[0068] In this embodiment, the column 1 is connected to the sea - dike crest 2 by in - situ casting. Further, the horizontal distance between the column 1 and the water - retaining front of the sea - dike crest 2 is greater than 10% of the horizontal distance between the water - retaining front of the parapet wall on the sea - dike crest 2 and the bottom end of the sea - dike toe protection. When the wave passes through the front of the parapet wall on the crest and during the movement on the sea - dike crest 2, its wave force will have a certain attenuation. This attenuation is caused by the interaction between the wave and the crest structure and the energy dissipation during the wave propagation. According to the attenuation characteristics of the wave, the setting position of the wave - proof wall is restricted in this scheme. Specifically, the horizontal distance between the column 1 and the water - retaining front of the sea - dike crest 2 is set to be greater than 10% of the horizontal distance between the water - retaining front of the parapet wall on the crest and the bottom end of the sea - dike toe protection. Through this position optimization, the total horizontal wave force on the wave - proof wall is significantly reduced. When the wave - proof wall is in this position, the total horizontal wave force it receives is not greater than 65% of the total horizontal wave force when the wave - proof wall is at the water - retaining front of the crest. Due to the reduction of the wave impact force, the design of the wave - proof wall can be thinner, lighter and lower. This not only reduces the weight of the structure and material consumption, but also makes the sea - dike have a better visual effect and be more beautiful.

[0069] S3: Install water accumulation troughs 3 between two adjacent columns 1.

[0070] The water accumulation trough 3 is installed between two adjacent columns 1, and the opening of the water accumulation trough 3 faces the side close to the wave. In some embodiments, a receiving groove 21 is opened on the sea - dike crest 2, and the water accumulation trough 3 is arranged in the receiving groove 21 to collect water flow faster.

[0071] S4: Install wave - proof walls 4 between two adjacent columns 1.

[0072] By installing the water accumulation trough 3 and the wave - proof wall 4 between two adjacent columns 1, a wave - proof barrier is formed. In this embodiment, the water accumulation trough 3 and the wave - proof wall 4 can be quickly installed and disassembled, greatly improving the construction efficiency and effectively alleviating the contradiction between small - probability tides and the daily hydrophilicity of the sea - dike.

[0073] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principles of the present disclosure / this application, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present disclosure / this application.

Claims

1. A modular wave-breaking wall assembled on the top of a seawall, characterized in that: include: A plurality of columns (1) are arranged at intervals on the top of the seawall (2); A water collection trough (3) is detachably arranged between two adjacent columns (1), and the top of the water collection trough (3) is open; The wave-breaking wall (4) is detachably arranged between two adjacent columns (1), and the wave-breaking wall (4) is connected to the top surface of the side wall of the water collection tank (3).

2. The assembled modular wave-breaking wall on the top of the seawall according to claim 1, characterized in that: The column (1) is provided with fixing grooves (1) on two opposite sides in the length direction, and the fixing grooves (1) are located at the top of the column (1) and have an opening. The water storage tank (3) is provided with first fixing parts (31) on two opposite sides that match the fixing grooves (1), and the wave-breaking wall (4) is provided with second fixing parts (41) on two opposite sides that match the fixing grooves (1).

3. The assembled modular wave-breaking wall on the top of the seawall according to claim 2 is characterized in that: The water collection tank (3) has a connecting portion (32) at the top of a side wall on one side of the first fixing portion (31), and a slot (33) for inserting the wave-proof wall (4) is provided on the connecting portion (32).

4. The assembled modular wave-breaking wall on the top of the seawall according to claim 3 is characterized in that: A receiving groove (21) is provided on the seawall top (2), and the receiving groove (21) is used to place the water storage groove (3).

5. The assembled modular wave-breaking wall on the top of the seawall according to claim 4, characterized in that: A water-permeable grate (5) is provided on the top of the water trough (3); the aperture of the water-permeable grate (5) is not greater than 5 mm, and the surface of the water-permeable grate (5) is coated with an anti-corrosion coating.

6. The assembled modular wave-breaking wall on the top of the seawall according to claim 1, characterized in that: The column (1) is provided with a first plug hole (12) and a second plug hole (13), and the first plug hole (12) and the second plug hole (13) on each column (1) are connected via a plurality of support rods (6), each support rod (6) has a concave portion (62) and a convex portion (61) at both ends, and the plurality of support rods (6) are connected by inserting and engaging with the concave portion (62) and the convex portion (61); the support rod (6) located in the first plug hole (12) contacts the side of the wave-breaking wall (4) facing away from the waves, and the support rod (6) located in the second plug hole (13) contacts the side of the water storage tank (3) facing away from the waves.

7. The assembled modular wave-breaking wall on the top of the seawall according to claim 1, characterized in that: A support frame (7) is provided on the side of the wave-breaking wall (4) facing away from the waves, and a handrail (8) is provided on the top of the wave-breaking wall (4).

8. A construction method, characterized in that: The assembled modular wave-breaking wall on the top of a seawall according to any one of claims 1 to 7 comprises the following steps: S1: Factory-prefabricated columns (1), water collection tanks (3) and wave-breaking walls (4); S2: columns (1) are arranged at intervals on the top of the seawall (2); S3: installing a water collection tank (3) between two adjacent columns (1); S4: installing a wave-proof wall (4) between two adjacent columns (1).

9. The construction method according to claim 8, characterized in that: The horizontal distance between the upright column (1) and the water retaining front edge of the seawall crest (2) is greater than 10% of the horizontal distance between the water retaining front edge of the breast wall of the seawall crest (2) and the bottom end of the foot guard of the seawall crest (2).

10. The construction method according to claim 8, characterized in that: The connection between the seawall crest (2) and the upright column (1) is a cast-in-place connection.

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