Hexagonal block concrete protection slope for upstream dam slope of earth and rockfill dam in southern moist region

Abstract

The utility model provides a hexagonal block concrete protection slope for an upstream dam slope of an earth and rockfill dam in a southern moist area, and relates to the technical field of concrete protection slopes. The structure comprises a leveling layer, a kraft paper cushion layer, hexagonal concrete blocks and a wide seam filling structure, the leveling layer is arranged on a dam slope, the kraft paper cushion layer is arranged on the leveling layer, all the hexagonal concrete blocks are evenly arranged on the kraft paper cushion layer, and the wide seam filling structure is arranged between the hexagonal concrete blocks and the kraft paper cushion layer. A wide seam is formed between every two adjacent hexagonal concrete blocks, asphalt is painted on the two sides of each wide seam, the wide seams are filled with the wide seam filling structures, and the two sides of each wide seam filling structure are connected with the asphalt. The concrete protection slope can integrally form a double-combination dam slope protection slope structure filled with the hexagonal concrete blocks and the wide seam filling structure, construction is easy, the manufacturing cost is low, the double-combination dam slope protection slope structure cannot be lifted by stormy waves, the double-combination dam slope protection slope structure adapts to deformation and is not prone to cracking, manpower is effectively saved, and the defect that a traditional asphalt board separation seam decays to breed weeds and termites can be overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete slope protection, in particular to a hexagonal block concrete slope protection for an upstream dam slope of an earth-rock dam in a humid area in the south. Background Art

[0002] If the upstream slope protection design of the earth-rock dam is not properly handled, some engineering problems will arise during the later operation of the reservoir dam, such as deformation and cracking of the slope protection panels, weeds and ants easily growing in the gaps, and small blocks and masonry being damaged by wind and waves.

[0003] The existing upstream concrete slope protection of earth-rock dams generally adopts cast-in-place rectangular block structure, with a cast-in-place length × width of 4 × 4m or 4 × 3m, and asphalt wood boards are used for separation, with a seam width of 20mm. If the block size is too large, it will not adapt to the deformation of the dam slope and will easily crack. If the block size is too small, it will be easily destroyed by wind and wave pressure.

[0004] Alternatively, a prefabricated polygonal plate block structure is used. However, since it is a prefabricated block structure, it is difficult to manually lay blocks that are too large.

[0005] The applicant has found that there are at least the following technical problems in the prior art: for the above-mentioned traditional concrete slope protection, if a cast-in-place rectangular block structure is used, it is often difficult to adapt to the slight settlement and deformation of the earth-rock dam slope, which leads to cracking, and the asphalt wood board partitions between the blocks have poor durability, blisters and rot, and after the partitions are filled with mud and sand, weeds grow in the gaps in the humid climate conditions in the south, causing inconvenience and safety hazards to the operation and management of the dam; if a prefabricated polygonal plate block structure is used, it is difficult to manually lay blocks that are too large, and the manual laying efficiency is slow for blocks that are too small. Since the blocks are light in weight, they are easily lifted up by the pressure of wind and waves in the humid southern regions with strong winds and waves, which will bring great hidden dangers to the safe operation of the dam. Utility Model Content

[0006] The purpose of the utility model is to provide a hexagonal block concrete slope protection for the upstream dam slope of an earth-rock dam in a humid area in the south, so as to solve the technical problems existing in the prior art. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A hexagonal block concrete slope protection for the upstream slope of an earth-rock dam in a southern humid area, comprising a leveling layer, a kraft paper cushion layer, hexagonal concrete blocks and a wide seam filling structure, wherein the leveling layer is arranged on the dam slope, the kraft paper cushion layer is arranged on the leveling layer, all the hexagonal concrete blocks are evenly arranged on the kraft paper cushion layer, a wide seam is formed between every two adjacent hexagonal concrete blocks, both sides of each wide seam are coated with asphalt, and the wide seam filling structure is filled inside the wide seam and both sides of the wide seam are connected to the asphalt.

[0009] Preferably, it also includes a drainage pipe, which is arranged at the junction of every three adjacent hexagonal concrete blocks, one end of the drainage pipe is located inside the leveling layer, and the other end of the drainage pipe passes through the wide gap filling structure.

[0010] Preferably, the leveling layer is formed by leveling mixed sand on the dam slope.

[0011] Preferably, the hexagonal concrete blocks are cast-in-place from C20 concrete.

[0012] Preferably, the wide joint filling structure is C20 fine stone concrete, and the C20 fine stone concrete is filled in the wide joint.

[0013] Preferably, the thickness of the hexagonal concrete block is 120 mm-220 mm.

[0014] Preferably, the length of a single side of the hexagonal concrete block is 1.2m-2m.

[0015] Preferably, the length of a single side of the hexagonal concrete block is 1.5m-1.75m.

[0016] Preferably, the width of the wide slit is 100 mm.

[0017] Preferably, the thickness of the wide gap filling structure is smaller than the thickness of the hexagonal concrete block.

[0018] The beneficial effects of the utility model are as follows: the concrete slope protection is achieved by sequentially casting hexagonal concrete blocks, the hexagonal concrete blocks have sufficient weight, and thus will not be lifted by wind and waves, the slope protection between adjacent hexagonal concrete blocks has good bite integrity, adapts to deformation, and is not easy to crack, and the use of cast-in-place method can save manpower and solve the problem of difficulty in manual masonry;

[0019] By forming wide joints between adjacent hexagonal concrete blocks, applying asphalt on the joint surface, and pouring a wide joint filling structure in the wide joint in a secondary sequence, the gap filling structure cooperates with asphalt to avoid the disadvantages of traditional asphalt wood board joints rotting and breeding weeds and ants;

[0020] The concrete slope protection can form a double-combination dam slope protection structure filled with hexagonal concrete blocks and wide-slit filling structures as a whole. It is easy to construct, low in cost and has good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a detailed diagram of the concrete slope protection of the utility model;

[0023] Figure 2 It is a plan view of the concrete slope protection of the utility model;

[0024] Figure 3 It is a cross-sectional view of the concrete slope protection of the utility model;

[0025] In the figure, 1. leveling layer;

[0026] 2. Kraft paper cushion;

[0027] 3. Hexagonal concrete blocks;

[0028] 4. Wide seam filling structure;

[0029] 5. Drain pipe. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or location relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] Reference Figures 1 to 3 The utility model provides a hexagonal block concrete slope protection for the upstream slope of an earth-rock dam in a humid area in the south, comprising a leveling layer 1, a kraft paper cushion layer 2, a hexagonal concrete block 3 and a wide seam filling structure 4, wherein the leveling layer 1 is arranged on the dam slope, and the leveling layer 1 can level the dam slope, the kraft paper cushion layer 2 is arranged on the leveling layer 1, and the kraft paper cushion layer 2 can prevent the leveling layer 1 from being hardened, all the hexagonal concrete blocks 3 are evenly arranged on the kraft paper cushion layer 2, and are distributed in an array, a wide seam is formed between every two adjacent hexagonal concrete blocks 3, both sides of each wide seam are coated with asphalt, and the asphalt is preferably coated twice, and the wide seam filling structure 4 is filled in the wide seam and both sides thereof are connected to the asphalt.

[0034] The concrete slope protection is cast in place in sequence by hexagonal concrete blocks 3. The hexagonal concrete blocks 3 have sufficient weight and will not be lifted by wind and waves. The slope protection between adjacent hexagonal concrete blocks 3 has good bite integrity, adapts to deformation, and is not easy to crack. The cast-in-place method can save manpower and solve the problem of difficulty in manual masonry.

[0035] By forming wide gaps between adjacent hexagonal concrete blocks 3, applying asphalt on the gap surface, and pouring a wide gap filling structure 4 in the wide gap in a second order to cooperate with the asphalt, the disadvantages of rotting and breeding weeds and ants in the gaps of traditional asphalt wood boards are avoided;

[0036] The concrete slope protection can form a double-combination dam slope protection structure filled with hexagonal concrete blocks 3 and wide-slit filling structures 4 as a whole, which is simple to construct, low in cost and has good economic benefits.

[0037] As an optional embodiment, it also includes a drainage pipe 5, which is arranged at the intersection of every three adjacent hexagonal concrete blocks 3, that is, at the intersection of three connected wide seams. The drainage pipe 5 is installed in a buried manner, one end of the drainage pipe 5 is located inside the leveling layer 1, and the other end of the drainage pipe 5 passes through the wide seam filling structure 4;

[0038] By providing the drainage pipe 5, the drainage capacity of the dam slope can be increased, and the anti-floating capacity of the hexagonal concrete block 3 is ensured;

[0039] In this embodiment, the specification of the drainage pipe 5 is preferably a φ75 PVC drainage pipe.

[0040] As an optional implementation, the leveling layer 1 is formed by leveling mixed sand on the dam slope. The leveling layer 1 can level the dam slope, thereby facilitating subsequent construction.

[0041] As an optional embodiment, the hexagonal concrete block 3 is cast in situ by C20 concrete.

[0042] As an optional implementation, the wide gap filling structure 4 is C20 fine stone concrete, and the C20 fine stone concrete is filled in the wide gap.

[0043] As an optional implementation, the preferred range of the single-side length of the hexagonal concrete block 3 is 1.2m-2m, and the preferred range of the thickness of the hexagonal concrete block 3 is 120mm-220mm. Flexible selection can be made within the above range according to actual use needs, the dam slope of different reservoir dams, and the characteristics of wind and waves.

[0044] As an optional implementation, the most preferred range of the length of a single side of the hexagonal concrete block 3 is 1.5m-1.75m, and the most preferred thickness is 160mm. Under this data state, the hexagonal concrete block 3 can have sufficient weight and will not be lifted up by wind and waves.

[0045] As an optional embodiment, the width of the wide slot is preferably 100 mm.

[0046] As an optional implementation, the thickness of the wide seam filling structure 4 is less than the thickness of the hexagonal concrete block 3. Such an arrangement can make the overall contour of the concrete slope protection stronger and more beautiful. In this embodiment, the thickness of the wide seam filling structure 4 is preferably 140 mm, and the difference in thickness between the wide seam filling structure 4 and the hexagonal concrete block 3 is preferably 20 mm.

[0047] A preferred construction method of the concrete slope protection mentioned in this embodiment is:

[0048] The upstream slope of the dam is roughened and leveled, and mixed sand with a thickness of more than 100 mm is preferably used for leveling to form a leveling layer 1;

[0049] Then a layer of kraft paper cushion layer 2 is laid on the leveling layer 1, and the leveling layer 1 is placed on the kraft paper cushion layer 2 to form a compaction;

[0050] Then cast in situ C20 concrete blocks with a thickness of 160 mm and a single side length of 1.5 m to 1.75 m to form hexagonal concrete blocks 3, thereby forming a slope protection structure, with a wide gap of 100 mm between each two adjacent hexagonal concrete blocks 3;

[0051] Then, C20 fine stone concrete is used to fill the wide joints to form a wide joint filling structure 4. The thickness of the wide joint filling structure 4 is preferably 140 mm, which is less than the thickness of the hexagonal concrete block 3, and the thickness difference is 20 mm. Two coats of asphalt are applied between the joint surfaces of the hexagonal concrete block 3 and the wide joint filling structure 4, and finally a double-combination dam slope protection structure filled with hexagonal concrete blocks and wide joint filling structures is formed.

[0052] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A hexagonal block concrete slope protection for the upstream slope of an earth-rock dam in a humid southern region, characterized in that: The invention comprises a leveling layer (1), a kraft paper cushion layer (2), hexagonal concrete blocks (3) and a wide seam filling structure (4), wherein the leveling layer (1) is arranged on a dam slope, the kraft paper cushion layer (2) is arranged on the leveling layer (1), all the hexagonal concrete blocks (3) are evenly arranged on the kraft paper cushion layer (2), a wide seam is formed between every two adjacent hexagonal concrete blocks (3), both sides of each wide seam are coated with asphalt, and the wide seam filling structure (4) fills the inside of the wide seam and both sides of the wide seam are connected to the asphalt.

2. The hexagonal block concrete slope protection for the upstream dam slope of the earth-rock dam in the southern humid area according to claim 1 is characterized in that: It also comprises a drainage pipe (5), which is arranged at the junction of every three adjacent hexagonal concrete blocks (3), one end of the drainage pipe (5) is located inside the leveling layer (1), and the other end of the drainage pipe (5) passes through the wide seam filling structure (4).

3. The hexagonal block concrete slope protection for the upstream dam slope of the earth-rock dam in the southern humid area according to claim 1 is characterized in that: The leveling layer (1) is formed by leveling mixed sand on the dam slope.

4. The hexagonal block concrete slope protection for the upstream dam slope of the earth-rock dam in the southern humid area according to claim 1 is characterized in that: The hexagonal concrete blocks (3) are cast in situ from C20 concrete.

5. The hexagonal block concrete slope protection for the upstream dam slope of the earth-rock dam in the southern humid area according to claim 1 is characterized in that: The wide gap filling structure (4) is C20 fine stone concrete, and the C20 fine stone concrete is filled in the wide gap.

6. The hexagonal block concrete slope protection for the upstream dam slope of the earth-rock dam in the southern humid area according to claim 1 is characterized in that: The thickness of the hexagonal concrete block (3) is 120 mm-220 mm.

7. The hexagonal block concrete slope protection for the upstream dam slope of the earth-rock dam in the southern humid area according to claim 1 is characterized in that: The length of a single side of the hexagonal concrete block (3) is 1.2m-2m.

8. The hexagonal block concrete slope protection for the upstream dam slope of the earth-rock dam in the southern humid area according to claim 7 is characterized in that: The length of a single side of the hexagonal concrete block (3) is 1.5m-1.75m.

9. The hexagonal block concrete slope protection for the upstream dam slope of the earth-rock dam in the southern humid area according to claim 1 is characterized in that: The width of the wide slit is 100 mm.

10. The hexagonal block concrete slope protection for the upstream dam slope of the earth-rock dam in the southern humid area according to claim 1 is characterized in that: The thickness of the wide gap filling structure (4) is smaller than the thickness of the hexagonal concrete block (3).

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