A flood control dam

Abstract

The present invention discloses a flood control dam, comprising a plurality of splicing units, each of which has a splicing structure on at least one side, so that the plurality of splicing units can be spliced ​​together in the left-right, front-back, or top-bottom directions to form multiple rows, columns, or layers of the flood control dam. In the technical solution provided by the present invention, the flood control dam is formed by splicing the plurality of splicing units. This splicing combination method is highly efficient, the constructed dam is stable, and it is very flexible in use and easy to recycle after use. In addition, the plurality of splicing units can be spliced ​​together according to actual needs to form a flood control dam with a suitable number of rows, columns, and layers.

Description

Technical Field

[0001] The present invention relates to the field of dams, and in particular to a flood control and prevention dam. Background Art

[0002] Flood refers to the flow of water in rivers, oceans, lakes and other water bodies that rises above a certain level, threatening the safety of the relevant areas and even causing disasters. Floods can be divided into river floods, coastal floods and lake floods according to the different areas where they occur. River floods and lake floods are the most common floods, and their main cause is rainstorm floods. Their characteristics are mainly manifested in obvious flood generation and confluence processes, flood propagation, flood storage and flood encounter problems, flood-carried sediment, and flood periodicity and randomness.

[0003] When a flood control levee collapses, a common method used is to manually build the levee with soil in woven bags. This method is inefficient and will damage the ground around the levee. At the same time, the woven bags are consumed in large quantities and are not easy to recycle. Summary of the Invention

[0004] The main purpose of the present invention is to provide a flood control and flood prevention dam, aiming to solve the problem of low efficiency of the existing flood control method of embankment construction with woven bag soil.

[0005] To achieve the above-mentioned purpose, the present invention proposes a flood control dam, wherein the flood control dam includes a plurality of splicing units, and at least one side of the splicing unit is provided with a splicing structure, so that the plurality of splicing units can be spliced ​​and combined with each other in the left-right, front-back or up-down directions to form multiple rows, multiple columns or multiple layers of flood control dams.

[0006] Optionally, the wave layer monomer constitutes the uppermost layer on the front side of the multi-layer flood control dam or the front side of the single-layer flood control dam, the front side surface of the wave layer monomer is a U-shaped surface that bends upward and downward from the middle, the left and right sides of the wave layer monomer are provided with first meshing grooves that mesh with each other, and the rear side of the wave layer monomer is provided with a second meshing groove;

[0007] The inclined surface unit is provided on the lower side of the front of the wave-return layer unit in the multi-layer flood control dam, and together with the wave-return layer unit, it constitutes the front side of the multi-layer flood control dam. The front side surface of the inclined surface unit is an inclined surface from top to bottom and from back to front. The left and right sides of the inclined surface unit are provided with third meshing grooves that mesh with each other, and the rear side of the inclined surface unit is provided with a fourth meshing groove; and

[0008] The ordinary monomer is arranged on the rear side of the wave layer monomer in the single-layer flood control dam, or is arranged on the lower side of the wave layer monomer and the rear side of the inclined monomer in the multi-layer flood control dam. The left and right sides of the ordinary monomer are provided with fifth meshing grooves that mesh with each other, and the front and back sides of the ordinary monomer are provided with sixth meshing grooves that mesh with each other. The sixth meshing groove is arranged corresponding to the second meshing groove and the fourth meshing groove, so that the ordinary monomer can be spliced ​​with the wave layer monomer or the inclined monomer in the front and back directions, and the upper side of the ordinary monomer is recessed with a mortise and tenon groove.

[0009] Optionally, the wave layer monomer includes:

[0010] The wave layer is directly connected to the monomer, and the left side of the wave layer is directly connected to the monomer is arranged in a straight surface; and

[0011] The wave layer obliquely connected monomer has a left side provided with an oblique groove corresponding to the first engaging groove at the U-shaped surface.

[0012] Optionally, the wave layer monomer includes:

[0013] The bottom layer monomer of the wave-return layer is applicable to the single-layer flood control dam and constitutes the front side of the single-layer flood control dam, and its lower side is flat; and

[0014] The wave layer is not a bottom layer monomer, which is suitable for multi-layer flood control dams and constitutes the top layer on the front side of the multi-layer flood control dam. Its lower side is provided with a first tenon corresponding to the tenon groove to be spliced ​​with the ordinary monomer in the upper and lower directions.

[0015] Optionally, the bevel monomer includes:

[0016] The inclined bottom layer monomer is suitable for the multi-layer flood control dam and constitutes the lowest layer on the front side of the multi-layer flood control dam, and its lower side is flat; and

[0017] The inclined non-bottom layer monomer is suitable for multi-layer flood control dams. It is arranged on the lower side in front of the wave-return layer non-bottom layer monomer and the upper side behind the inclined bottom layer monomer, and constitutes the front side of the multi-layer flood control dam together with the wave-return layer non-bottom layer monomer and the inclined bottom layer monomer. A second tenon corresponding to the mortise and tenon groove is provided on its lower side to be spliced ​​with the ordinary monomer in the upper and lower directions.

[0018] Optionally, the common monomer includes:

[0019] The common bottom layer monomer is suitable for single-layer and multi-layer flood control dams, and its lower side is arranged in a flat surface. When used for a single-layer flood control dam, the common bottom layer monomer is arranged on the rear side of the wave-return layer bottom layer monomer, and together with the wave-return layer bottom layer monomer, it forms the lowest layer of the single-layer flood control dam. When used for a multi-layer flood control dam, the common bottom layer monomer is arranged on the rear side of the slope bottom layer monomer, and together with the slope bottom layer monomer, it forms the lowest layer of the multi-layer flood control dam; and,

[0020] Ordinary non-bottom layer monomers are suitable for multi-layer flood control dams. They are arranged on the lower side of the wave layer non-bottom layer monomers and the rear side of the inclined non-bottom layer monomers. A third tenon corresponding to the tenon groove is provided on its lower side to splice each other in the upper and lower directions.

[0021] Optionally, the first meshing groove, the third meshing groove and the fifth meshing groove located on one of the left and right sides are respectively composed of vertical grooves that pass through the wave layer monomer, the slope monomer and the ordinary monomer from top to bottom, and there are at least two vertical grooves, so that the wave layer monomers, the slope monomers and the ordinary monomers can be staggered and spliced.

[0022] Optionally, a cavity is provided in the splicing unit, and at least one opening penetrating to the cavity is provided on the splicing unit.

[0023] Optionally, a groove is concavely provided on the upper side of the splicing unit.

[0024] Optionally, the splicing unit is made of ABS plastic.

[0025] In the technical solution provided by the present invention, the flood control dam is formed by splicing the plurality of splicing units. This splicing combination dam construction method is highly efficient, the built dam is stable, very flexible in use, and easy to recycle and reuse after use. Moreover, according to actual needs, the plurality of splicing units can be spliced ​​together to form a flood control dam with an appropriate number of rows, columns and layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 A three-dimensional schematic diagram of an embodiment of a flood control dam provided by the present invention;

[0028] Figure 2 for Figure 1 A single-row three-dimensional schematic diagram of a flood control and flood prevention dam;

[0029] Figure 3 for Figure 1 Schematic diagram of the disassembly of a single row, two-layer flood control embankment;

[0030] Figure 4 for Figure 1 A three-dimensional schematic diagram of the wave-rebound layer of the flood control dam;

[0031] Figure 5 for Figure 1 A schematic diagram of a three-dimensional sloping unit of a flood control and flood prevention dam;

[0032] Figure 6 for Figure 1 A schematic diagram of a common single body of a flood control and flood prevention dam;

[0033] Figure 7 for Figure 1 A three-dimensional schematic diagram of a single-layer, single-row flood control dam;

[0034] Figure 8 for Figure 1 Side view of the non-bottom layer of the backwash layer of the flood control dam;

[0035] Figure 9 for Figure 1 Side view of the bottom layer of the backwash layer of the flood control dam;

[0036] Figure 10 for Figure 1 The side view of the inclined non-bottom unit of the flood control dam;

[0037] Figure 11 for Figure 1 Side view of the sloped bottom layer of the flood control dam;

[0038] Figure 12 for Figure 1 A side view of a common non-bottom-layer single body of a flood control dam;

[0039] Figure 13 for Figure 1 Side view of a common bottom unit of a flood control dam.

[0040] Description of Figure Numbers:

[0041] Label name Label name 100 Flood control and flood prevention dams 132 Sixth engagement groove 1 Splicing monomer 133 mortise and tenon 11 Wave layer monomer 11a Wave layer directly connected monomer 12 Slanted monomer 11b Back wave layer obliquely connected monomer 13 Ordinary monomer 11b1 Miter groove 14 cavity 11c Backwash layer non-bottom layer monomer 15 Opening 11c1 First tenon 16 groove 11d Backwash layer bottom monomer 111 U-shaped surface 12a Slanted non-bottom monomer 112 First engaging groove 12a1 Second tenon 113 Second engaging groove 12b Sloped bottom monomer 121 The third engaging groove 13a Ordinary non-bottom monomer 122 Fourth engagement groove 13a1 The third tenon 131 Fifth engagement groove 13b Ordinary bottom monomer

[0042] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0045] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] At present, when a flood control levee collapses, the method often used is the human wave tactic, where people use woven bags filled with soil to build the levee. This method is inefficient and will damage the ground around the levee. At the same time, the woven bags are consumed in large quantities and are not easy to recycle.

[0047] In order to solve the above problems, the present invention provides a flood control dam 100. Figures 1 to 13 This is a specific embodiment of the flood control and prevention dam provided by the present invention.

[0048] See also Figure 1 The flood control dam 100 includes a plurality of splicing units 1, and at least one side of the splicing unit 1 is provided with a splicing structure, so that the plurality of splicing units 1 can be spliced ​​and combined with each other in the left-right, front-back or up-down directions to form multiple rows, multiple columns or multiple layers of the flood control dam 100.

[0049] In the technical solution provided by the present invention, the flood control dam 100 is formed by splicing the multiple splicing units 1. This splicing combination dam construction method is highly efficient, the built dam is stable, and it is easy to recycle and reuse after use. Moreover, according to actual needs, multiple splicing units 1 can be spliced ​​together to form a flood control dam 100 with a suitable number of rows, columns and layers.

[0050] Further, see Figure 3 and Figure 4 The plurality of splicing monomers 1 include a wave return layer monomer 11, a sloped monomer 12 and an ordinary monomer 13. The wave return layer monomer 11 constitutes the topmost layer on the front side of a multi-layer flood control dam, or constitutes the front side of a single-layer flood control dam. The front side surface of the wave return layer monomer 11 is a U-shaped surface 111 that bends upward and downward from the middle. After the flood waves come over, they are redirected by the U-shaped surface 111 to weaken the height of the waves. The left and right sides of the wave return layer monomer 11 are provided with first meshing grooves 112 that mesh with each other. Through the first meshing grooves 112, the wave return layer monomers 11 can be spliced ​​with each other in the left and right directions, and the wave return layer monomers 11 can be spliced ​​to a suitable width according to actual conditions.

[0051] See also Figure 3 and Figure 5 , is arranged on the lower side in front of the wave echo layer monomer 11 in the multi-layer flood control dam, and together with the wave echo layer monomer 11 constitutes the front side of the multi-layer flood control dam, the front side surface of the slope monomer 12 is an inclined surface from top to bottom and from back to front, and the slope monomer 12 is located on the front side of the multi-layer flood control dam so that the inclined surface is the side facing the flood, and the impact force of large waves can be reduced by the inclined surface. The left and right sides of the slope monomer 12 are provided with third meshing grooves 121 that mesh with each other. Through the third meshing grooves 121, the slope monomer 12 can also be spliced ​​in the left and right directions.

[0052] See also Figure 3 and Figure 6The common monomer 13 is arranged on the rear side of the wave layer monomer 11 in the single-layer flood control dam, or on the lower side of the wave layer monomer 11 and the rear side of the slope monomer 12 in the multi-layer flood control dam. The left and right sides of the common monomer 13 are provided with a fifth meshing groove 131 that meshes with each other, and the front and back sides of the common monomer 13 are provided with a sixth meshing groove 132 that meshes with each other. The rear side of the wave layer monomer 11 is provided with a second meshing groove 113, and the rear side of the slope monomer 12 is provided with a fourth meshing groove 122. The sixth meshing groove 131 is provided with a sixth meshing groove 132 that meshes with each other. The groove 132 is arranged corresponding to the second meshing groove 113 and the fourth meshing groove 122, so that the ordinary monomer 13 is spliced ​​with the wave layer monomer 11 or the inclined monomer 12 in the front and rear directions. By splicing the ordinary monomer 13 to the rear side of the wave layer monomer 11, the number of rows of the single-layer flood-resistant dam can be increased, thereby improving its strength to resist floods. Multiple wave layer monomers 11 can be spliced ​​with each other in the left and right directions. Therefore, when in use, the number of rows of the single-layer flood-resistant dam can be increased to achieve the width required for actual flood control.

[0053] Furthermore, by splicing the ordinary monomer 13 to the rear side of the wave-return layer monomer 11 and the slope monomer 12, the number of rows of the multi-layer flood-control dam can be increased, thereby improving its strength in resisting floods. At the same time, multiple wave-return layer monomers 11, multiple slope monomers 12 and multiple ordinary monomers 13 can be spliced ​​with each other in the left and right directions respectively, thereby increasing the number of rows of the multi-layer flood-control dam when in use to achieve the width required for actual flood control.

[0054] See also Figure 7 In the technical solution provided by the present invention, the wave layer monomer 11 includes a wave layer straight-connected monomer 11a and a wave layer oblique-connected monomer 11b. The left side of the wave layer straight-connected monomer 11a is arranged in a straight surface, which is used to be spliced ​​with each other in the left and right directions, and after splicing, it forms a single-layer flood control dam that is straight in the left and right directions, or is spliced ​​together with the oblique-plane monomer 12 and the ordinary monomer 13 to form a multi-layer flood control dam that is straight in the left and right directions. The left side of the wave layer oblique-connected monomer 11b is provided with a U-shaped surface 111 that is connected to the first The bevel groove 11b1 corresponding to the meshing groove 112 engages with the bevel groove 11b1 and the first meshing groove 112, so that the wave layer obliquely connected monomers 11b can be staggered and spliced ​​with each other to increase the stability during staggered splicing. At the same time, the wave layer directly connected monomers 11a and the wave layer obliquely connected monomers 11b can be staggered and spliced. During use, the wave layer directly connected monomers 11a and the wave layer obliquely connected monomers 11b can be used in combination, so as to be spliced ​​into a single-layer flood control dam that fits the river bank according to the curvature of the river bank, which has high flexibility.

[0055] Further, see Figure 8 and Figure 9 The wave layer monomer 11 includes a wave layer bottom monomer 11d and a wave layer non-bottom monomer 11c. The wave layer bottom monomer 11d is suitable for a single-layer flood control dam and constitutes the front side of the single-layer flood control dam. Its lower side is flat. Because it is a single layer, the wave layer bottom monomer 11d is the top layer and the bottom layer. Its rear side can be spliced ​​with the ordinary bottom monomer 13b, and together with the ordinary bottom monomer 13b, it constitutes a single-layer flood control dam. The non-bottom layer monomer 11c of the wave layer is suitable for multi-layer flood control dams, and constitutes the uppermost layer on the front side of the multi-layer flood control dam. The upper side of the ordinary monomer 13 is recessed with a mortise and tenon 133, and the lower side of the non-bottom layer monomer 11c of the wave layer is provided with a first tenon 11c1 corresponding to the mortise and tenon 133. Through the engagement of the first tenon 11c1 and the mortise and tenon 133, the non-bottom layer monomer 11c of the wave layer can be spliced ​​with the ordinary monomer 13 in the upper and lower directions.

[0056] See also Figure 10 and Figure 11 The sloped monomer 12 includes a sloped bottom layer monomer 12b and a sloped non-bottom layer monomer 12a. The sloped bottom layer monomer 12b is suitable for a single-layer flood control dam, constituting the lowest layer on the front side of the multi-layer flood control dam, and its lower side is flat. The sloped non-bottom layer monomer 12a is suitable for a multi-layer flood control dam, and is arranged on the lower side in front of the wave-return layer non-bottom layer monomer 11c and the upper side behind the sloped bottom layer monomer 12b, and constitutes the front side of the multi-layer flood control dam with the wave-return layer non-bottom layer monomer 11c. The lower side of the sloped non-bottom layer monomer 12a is provided with a first tenon 12a1 corresponding to the tenon groove 133. Through the engagement of the first tenon 12a1 and the tenon groove 133, the sloped non-bottom layer monomer 12a and the ordinary monomer 13 can be spliced ​​in the upper and lower directions.

[0057] See also Figure 12 and Figure 13The common monomer 13 includes a common bottom monomer 13b and a common non-bottom monomer 13a. The common bottom monomer 13b is suitable for single-layer and multi-layer anti-flood dams. Its lower side is flat. When used for a single-layer anti-flood dam, the common bottom monomer 13b is arranged on the rear side of the wave layer bottom monomer 11d, and together with the wave layer bottom monomer 11d, it constitutes the lowest layer of the single-layer anti-flood dam. When used for a multi-layer anti-flood dam, it is arranged on the inclined The rear side of the bottom layer monomer 12b, and together with the inclined bottom layer monomer 12b, constitute the lowest layer of the multi-layer flood control dam, the ordinary non-bottom layer monomer 13a is arranged on the rear side of the wave layer non-bottom layer monomer 11c and the inclined non-bottom layer monomer 12a, and a third tenon 13a1 corresponding to the tenon groove 133 is provided on its lower side, through the third tenon 13a1 and the tenon groove 133, to be spliced ​​with itself in the upper and lower directions or to be spliced ​​with the ordinary bottom layer monomer 13b in the upper and lower directions.

[0058] Furthermore, after the multi-layer flood control dam is built, the wave layer non-bottom layer monomer 11c is arranged on the top layer on the front side of the multi-layer flood control dam, and its rear side is spliced ​​with the ordinary non-bottom layer monomer 13a and together with the ordinary non-bottom layer monomer 13a constitute the top layer of the multi-layer flood control dam, the inclined non-bottom layer monomer 12a is arranged on the front side of the middle layer of the multi-layer flood control dam, and the middle layer is the other layers except the top layer and the bottom layer, and the rear side of the inclined non-bottom layer monomer 12a is spliced ​​with the ordinary non-bottom layer monomer 13a and together with the ordinary non-bottom layer monomer 13a constitute the multi-layer flood control dam The middle layer, the inclined bottom layer monomer 12b constitutes the lowest layer on the front side of the multi-layer flood control dam, and its rear side is spliced ​​with the ordinary bottom layer monomer 13b and together with the ordinary bottom layer monomer 13b constitute the lowest layer of the multi-layer flood control dam. At the same time, the front side of the multi-layer flood control dam is composed of the backwash layer non-bottom layer monomer 11c, the inclined non-bottom layer monomer 12a and the inclined bottom layer monomer 12b, so that the U-shaped surface 111 is connected to multiple inclined surfaces to form a large inclined surface on the front side of the multi-layer flood control dam, and the top layer is a backwash layer composed of multiple U-shaped surfaces 111, which can effectively weaken the height of large waves and slow down the impact force of large waves.

[0059] See also Figure 2In the technical solution provided by the present invention, a cavity 14 is provided in the splicing monomer 1, and at least one opening 15 is provided on the splicing monomer 1 that penetrates the cavity 14. Water, sand, gravel, etc. can be poured into the cavity 14 through the opening 15, so as to increase the weight of the splicing monomer 1, thereby increasing the strength of the flood control dam 100 composed of the splicing monomers 1 to withstand floods. As a preferred embodiment, water is poured into the cavity 14 through the opening 15. When laying the splicing, water can be taken on site, which is more convenient than taking mud from a distance through a woven bag. At the same time, after use, the water in the cavity 14 can be dumped on site for easy recovery.

[0060] See also Figures 4 to 6 The first meshing groove 112, the third meshing groove 121 and the fifth meshing groove 131 located on one of the left and right sides are respectively composed of vertical grooves that run through the wave layer monomer 11, the inclined surface monomer 12 and the ordinary monomer 13 from top to bottom. The vertical groove is equivalent to a reinforcing rib, which makes the wave layer monomer 11, the inclined surface monomer 12 and the ordinary monomer 13 stronger and will not bulge and deform after being filled with water. It will not be inconvenient to disassemble due to deformation after use. There are at least 2 vertical grooves, so that the wave layer monomers 11, the inclined surface monomers 12 and the ordinary monomers 13 can be staggered and spliced ​​together, so as to be used in conjunction with the wave layer direct-connected monomer 11a and the wave layer oblique-connected monomer 11b, so as to be spliced ​​into a multi-layer flood control dam that fits the river bank according to the curvature of the river bank line, with high flexibility.

[0061] Further, see Figure 2 A groove 16 is concavely provided on the upper side of the splicing monomer 1. When the splicing monomer 1 is spliced ​​and water is not injected into the cavity 14 of the splicing monomer 1, the splicing monomer 1 is light and easy to float away. A material such as a steel plate with a higher density can be inserted into the groove 16 to facilitate its stable placement at the required location.

[0062] The material of the splicing monomer 1 is ABS plastic. ABS plastic is a ternary copolymer of three components: acrylonitrile, butadiene, and styrene. It has the common properties of the three components. Acrylonitrile makes it resistant to chemical corrosion and heat, and has a certain surface hardness. Butadiene makes it highly elastic and tough. Styrene makes it have the processing and molding properties of thermoplastic plastics. Therefore, ABS has good gloss, hardness, toughness, rigidity, and moderate mechanical properties, making it a good shell material.

[0063] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A flood control dam, characterized in that: It comprises a plurality of splicing units, at least one side of which is provided with a splicing structure, so that the plurality of splicing units can be spliced ​​together in the left-right, front-back or up-down directions to form a multi-row, multi-column or multi-layer flood control dam; The plurality of spliced ​​monomers include wave layer monomers, sloped monomers and ordinary monomers. The wave layer monomers constitute the topmost layer on the front side of the multi-layer flood control dam or constitute the front side of the single-layer flood control dam. The front side surface of the wave layer monomer is a U-shaped surface that bends upward and downward from the middle. The left and right sides of the wave layer monomer are provided with first meshing grooves that mesh with each other, and the rear side of the wave layer monomer is provided with a second meshing groove; the sloped monomer is provided on the lower side of the front of the wave layer monomer in the multi-layer flood control dam, and together with the wave layer monomer, it constitutes the front side of the multi-layer flood control dam. The front side surface of the sloped monomer is an inclined surface from top to bottom and from back to front. The left and right sides of the monomer are provided with third meshing grooves that mesh with each other, and the rear side of the inclined monomer is provided with a fourth meshing groove; and the ordinary monomer is provided on the rear side of the wave layer monomer in the single-layer flood control dam, or is provided on the lower side of the wave layer monomer in the multi-layer flood control dam and the rear side of the inclined monomer, the left and right sides of the ordinary monomer are provided with fifth meshing grooves that mesh with each other, and the front and back sides of the ordinary monomer are provided with sixth meshing grooves that mesh with each other, the sixth meshing groove is arranged corresponding to the second meshing groove and the fourth meshing groove, so that the ordinary monomer can be spliced ​​with the wave layer monomer or the inclined monomer in the front and back directions, and the upper side of the ordinary monomer is recessed with a mortise and tenon groove.

2. The flood control dam according to claim 1, characterized in that: The wave layer monomer comprises: The wave layer is directly connected to the monomer, and the left side of the wave layer is directly connected to the monomer is arranged in a straight surface; and The wave layer obliquely connected monomer has a left side provided with an oblique groove corresponding to the first engaging groove at the U-shaped surface.

3. The flood control dam according to claim 1, characterized in that: The wave layer monomer comprises: The bottom layer monomer of the wave-return layer is applicable to the single-layer flood control dam and constitutes the front side of the single-layer flood control dam, and its lower side is flat; and The wave layer is not a bottom layer monomer, which is suitable for multi-layer flood control dams and constitutes the top layer on the front side of the multi-layer flood control dam. Its lower side is provided with a first tenon corresponding to the tenon groove to be spliced ​​with the ordinary monomer in the upper and lower directions.

4. The flood control dam according to claim 3, characterized in that: The slope monomer includes: The inclined bottom layer monomer is suitable for the multi-layer flood control dam and constitutes the lowest layer on the front side of the multi-layer flood control dam, and its lower side is flat; and The inclined non-bottom layer monomer is suitable for multi-layer flood control dams. It is arranged on the lower side in front of the wave-return layer non-bottom layer monomer and the upper side behind the inclined bottom layer monomer, and constitutes the front side of the multi-layer flood control dam together with the wave-return layer non-bottom layer monomer and the inclined bottom layer monomer. A second tenon corresponding to the mortise and tenon groove is provided on its lower side to be spliced ​​with the ordinary monomer in the upper and lower directions.

5. The flood control dam according to claim 4, characterized in that: The common monomers include: The common bottom layer monomer is suitable for single-layer and multi-layer flood control dams, and its lower side is arranged in a flat surface. When used for a single-layer flood control dam, the common bottom layer monomer is arranged on the rear side of the wave-return layer bottom layer monomer, and together with the wave-return layer bottom layer monomer, it forms the lowest layer of the single-layer flood control dam. When used for a multi-layer flood control dam, the common bottom layer monomer is arranged on the rear side of the slope bottom layer monomer, and together with the slope bottom layer monomer, it forms the lowest layer of the multi-layer flood control dam; and, Ordinary non-bottom layer monomers are suitable for multi-layer flood control dams. They are arranged on the lower side of the wave layer non-bottom layer monomers and the rear side of the inclined non-bottom layer monomers. A third tenon corresponding to the tenon groove is provided on its lower side to splice each other in the upper and lower directions.

6. The flood control dam according to claim 1, characterized in that: The first meshing groove, the third meshing groove and the fifth meshing groove located on one of the left and right sides are respectively composed of vertical grooves that pass through the wave layer monomer, the inclined surface monomer and the ordinary monomer up and down, and there are at least two vertical grooves so that the wave layer monomers, the inclined surface monomers and the ordinary monomers can be staggered and spliced.

7. The flood control dam according to claim 1, characterized in that: A cavity is provided in the splicing unit, and at least one opening penetrating to the cavity is provided on the splicing unit.

8. The flood control dam according to claim 1, characterized in that: The upper side of the splicing unit is concavely provided with a groove.

9. The flood control dam according to claim 1, characterized in that: The material of the splicing unit is ABS plastic.

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