CN211621452U

CN211621452U - Dyke flood control structure and flood control dykes and dams

Info

Publication number: CN211621452U
Application number: CN202020069296.3U
Authority: CN
Inventors: 黄俊超; 袁秀霞; 刘玉忠; 左卫广; 荆瑞丽; 张学亮; 周倩
Original assignee: Henan North China Water Resources And Hydropower Survey And Design Co ltd
Current assignee: Henan North China Water Resources And Hydropower Survey And Design Co ltd
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-10-02
Anticipated expiration: 2030-01-11

Abstract

The utility model relates to a dam flood control structure, which comprises two layers of cellular net-shaped wave-proof grid plates which are oppositely arranged; the wave-resisting grid plate comprises a plurality of connecting blocks distributed at the nodes of the honeycomb grid and a plurality of connecting rods connected between the adjacent connecting blocks; fixing structures are arranged on the opposite sides of the wave-resisting grid plates; the fixed structure comprises a plurality of fixed blocks which are the same as the honeycomb grids on the wave-proof grid plate in number and correspond to the honeycomb grids in position one by one, and reinforcing rods are connected between each fixed block and the connecting blocks at the six nodes of the honeycomb grids at the corresponding position; through holes are formed in the connecting block and the fixing blocks, and the fixing blocks of the two fixing structures correspond to one another in position and are connected through the connecting assembly. The utility model discloses can effectively cushion the unrestrained impact of water, have the effect that reduces the earth and rock flow and lose the possibility of collapsing. The utility model discloses still correspondingly disclose a dam body upstream face and/or the back of the body surface on evenly laid the flood control dykes and dams of aforementioned dykes and dams flood control structure, its construction is easy, the scour resistance is good.

Description

Dyke flood control structure and flood control dykes and dams

Technical Field

The utility model belongs to the technical field of hydraulic engineering flood control facility's technique and specifically relates to a dykes and dams flood control structure and flood control dykes and dams are related to.

Background

Flood control dams are built along rivers, and the flood control dams have important significance for preventing river water from overflowing and protecting life and property safety of people. The flood control dam body needs to have enough pressure resistance and seepage resistance, and the upstream surface of the flood control dam body needs to have enough wave impact resistance. Otherwise, the dam is easily damaged by repeated impact and scouring of the water body, and even the soil layer of the dam body collapses.

In order to increase the scouring resistance of the upstream face of the dam body, a sand cushion layer is arranged on the upstream face of the dam body, and the surface of the sand cushion layer is covered with anti-filtration cloth, so that the scouring resistance of the dam body to water flow is improved, the soil loss of the dam body caused by water flow scouring is reduced, and the dam body is not easy to crack or even damage due to water flow scouring. However, the water flow scouring resistance of the dam body can only meet the requirement of water flow scouring resistance in a conventional state, and the flow of river water is suddenly increased in extreme weather such as rainstorm, typhoon and the like. On one hand, the impact acting force on the dam body is greatly increased; on the other hand, the water level is raised, so that part of the dam body is submerged below the water surface, and the dam body structure is easy to loosen and collapse under the soaking of the water body.

In the prior art, the following two measures are mainly adopted to increase the anti-scouring capability of the dam in emergency situations such as flood season or flood water level sudden expansion. One is to add a wave-proof structure for remediation, such as temporarily building a dam by using a large amount of woven bagged sand to improve the scouring resistance of the dam body, but the method for enhancing the scouring resistance of the dam body consumes huge manpower and material resources; the semi-permeable breakwater disclosed in the chinese patent with the publication number of CN205557441U adopts the sandbag piling type breakwater structure. The other is that the slope of the dam is paved with wave-preventing stones, such as a sea wall structure internally provided with a wave-eliminating pool disclosed in the Chinese patent with the publication number of CN208088229U, which mainly comprises a facing block, cushion block stones, dike core stones and the like; the breakwater structure has large breakwater stones, which cannot be moved manually, and the CN208088229U is taken as an example, the weight of a single breakwater core stone block reaches 10-100 kg, so that the breakwater structure is only suitable for being laid at seaside in a large range, can effectively weaken the impact of sea waves and protect the dam from being damaged, but obviously, the breakwater with large volume and high cost is not suitable for general river bank breakwater.

Therefore, it is necessary to design a dam flood protection structure which has an excellent wave protection effect, is easy to construct, and is suitable for river bank wave protection.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can effectively cushion unrestrained impact of water, reduce dykes and dams and prevent flood structure because of the possible dykes and dams that water and soil loss collapses.

The above object of the present invention can be achieved by the following technical solutions:

a dyke flood control structure comprises two layers of wave-proof grid plates which are oppositely arranged; the wave-proof grid plate is in a cellular grid shape and comprises a plurality of connecting blocks distributed at nodes of the cellular grid and a plurality of connecting rods connected between the adjacent connecting blocks; fixing structures are arranged on the opposite sides of the wave-resisting grid plates; the fixed structure comprises a plurality of fixed blocks which are the same in number as the honeycomb grids on the wave-proof grid plate and correspond to the honeycomb grids in positions one by one, and reinforcing rods are connected between each fixed block and the connecting blocks at the six nodes of the honeycomb grids at the corresponding position; the connecting block and the fixing block are provided with through holes, and the fixing block positions of the fixing structures correspond to one another and are connected through the connecting assembly.

By adopting the technical scheme, after one wave-proof grid plate is fixed on the slope surface of the dam during construction, the other wave-proof grid plate is fixedly connected with the other wave-proof grid plate. The fixed knot between two blocks of unrestrained net boards constructs by fixed block and anchor strut for form the three-dimensional latticed structure in space of similar natural mangrove root system between two-layer unrestrained net board after the installation, have excellent structural strength, can tolerate impact such as earth stone on the one hand, on the other hand because three-dimensional latticed structure can disperse, weaken the impact of flood wave, thereby can play effectual guard action to the dam body is domatic, make the dam body domatic difficult because of wave impact fracture or collapse. The utility model discloses a dykes and dams flood control structure is applicable to various earth and rockfill dams, concrete dam, can play the scour prevention effect for a long time after the installation, moves to dykes and dams domatic earth and rockfill and has certain prevention effect. In addition, because the slope of the breakwater dam is uneven after the wave-proof grid plates are installed, the dam has a certain blocking effect on climbing pedestrians and the like, and has a certain safety protection function.

Further, coupling assembling is including wearing to locate the connecting bolt of through hole on the fixed block and with connecting bolt threaded connection's connecting nut.

By adopting the technical scheme, after the two wave-proof grid plates are spliced with each other, the connecting bolts are penetrated and the connecting nuts are screwed on the corresponding butted fixing blocks, so that the two wave-proof grid plates can be connected firmly and stably. If necessary, the connecting bolt and the connecting nut can be welded and reinforced.

Further, the fixed block is annular.

Through adopting above-mentioned technical scheme, be convenient for when processing manufacturing fixed knot constructs the be connected between anchor strut and the fixed block, the fixed block butt joint on the two unrestrained grid plates of being convenient for during the concatenation can conveniently utilize coupling assembling to connect fixedly.

Further, the length of the reinforcing rods connected with the same fixing block is equal.

Through adopting above-mentioned technical scheme for the fixed block periphery atress everywhere is even, and the holistic structural strength of flood control structure promotes, and the scour resistance ability is better.

Further, the connecting block is spherical.

Through adopting above-mentioned technical scheme, the sphere of connecting block can homodisperse everywhere the pressure that receives for connecting block and connecting rod junction have sufficient resistance to compression shock resistance, and the fracture damage under wave impact, soil stone striking effect is difficult for, makes dykes and dams flood control structure have permanent flood fighting and wave fighting ability.

Further, the connecting rod and the reinforcing rod are hollow metal round rods.

Through adopting above-mentioned technical scheme, reduced dykes and dams flood control structure's whole weight, practiced thrift manufacturing cost on the one hand, on the other hand makes dykes and dams flood control structure install more easily, has reduced the construction degree of difficulty.

Furthermore, a plurality of elastic resistance-increasing balls are sleeved on the reinforcing rod.

Through adopting above-mentioned technical scheme, the setting of elasticity resistance-increasing ball can utilize self elasticity to absorb the unrestrained shock wave of water on the one hand, plays the effect that weakens the wave impact, and on the other hand can play certain guard action to dykes and dams flood control structure itself.

Furthermore, the surface of the elastic resistance-increasing ball is provided with a plurality of dot-shaped grooves or strip-shaped grooves.

By adopting the technical scheme, the surface area of the elastic resistance-increasing ball is increased, and the capability of the elastic resistance-increasing ball for weakening the impact acting force of waves is increased. When the waves are washed, the elastic resistance-increasing ball can rotate on the reinforcing rod or buffer the impact force of the waves by utilizing the elastic deformation of the elastic resistance-increasing ball.

Another object of the present invention is to provide a flood control dam, which is resistant to the impact of the flood waves and is not easy to damage the dam body due to the wave impact.

a flood control dam comprises a dam body, wherein the dam body comprises an inclined upstream surface and an inclined downstream surface, and a plurality of dam flood control structures are paved on the upstream surface and/or the downstream surface of the dam body.

By adopting the technical scheme, the dam has excellent anti-scouring capability, and soil and stones of the dam body are not easy to loosen or collapse due to wave impact.

Furthermore, a plurality of anchoring rods are inserted in the direction perpendicular to the upstream surface of the dam body, and each connecting block on the wave-proof grid plate attached to the upstream surface of the dam body corresponds to one anchoring rod; one end of the anchoring rod, which extends out of the dam body, penetrates through the connecting block, and the tail end of the anchoring rod is in threaded connection with a fastening nut.

By adopting the technical scheme, the dam flood control structure can be firmly fixed, and the dam wave control structure is not easy to separate from the dam body when the water level rises or the water flow sharply increases.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the dam flood control structure formed by splicing the two layers of wave-proof grid plates can form a three-dimensional net structure similar to a natural mangrove root system, can effectively buffer the water wave impact and has a protection effect on the slope surface of the dam body;

2. the wave-proof grid plate formed by the connecting blocks and the connecting rods can be stressed uniformly and is not easy to deform or damage under the wave impact, and one side of the wave-proof grid plate is provided with the fixing mechanism formed by the fixing blocks and the reinforcing rods, so that the structural strength of the wave-proof grid plate is further improved, the pressure and impact resistance of the flood control structure of the dam is stronger, and the wave erosion resistance is better;

3. the utility model discloses a dykes and dams flood control structure has evenly laid on the upstream face of flood control dykes and dams, has excellent permanent scour resistance for the upstream face of dam body is difficult for fracture, soil stone is not hard up or collapses, and flood control ability is better.

Drawings

Fig. 1 is a first schematic structural view of a dam flood control structure in example 1;

fig. 2 is a second schematic structural view of the dam flood protection structure of example 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of a wave-proof grid plate and a fixing structure in embodiment 1;

figure 5 is a cross-sectional view of the flood barrier of example 2;

FIG. 6 is an enlarged view of portion B of FIG. 5;

fig. 7 is a schematic view showing the manner of laying the dam flood control structure in example 2.

In the figure, 1, a wave-proof grid plate; 11. connecting blocks; 12. a connecting rod; 2. a fixed block; 21. a reinforcing rod; 3. a through hole; 4. a connecting bolt; 41. a connecting nut; 5. an elastic resistance-increasing ball; 51. a groove; 6. a dam body; 61. a water-facing surface; 62. a water-backed surface; 63. an anchoring rod; 631. and tightening the nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

a dyke flood control structure, referring to fig. 1 and 2, comprises two layers of parallel arranged cellular grid-shaped wave-proof grid plates 1. The wave-resisting grid plate 1 comprises a plurality of spherical connecting blocks 11 and a plurality of connecting rods 12 connected between the adjacent connecting blocks 11. In this embodiment, each connecting rod 12 is a hollow round rod with equal length. 7 regular hexagonal grids are formed on the single wave-proof grid plate 1, wherein six regular hexagonal grids are uniformly distributed around another regular hexagonal grid. Each connecting block 11 is respectively located at the node of each regular hexagonal grid, and each connecting block 11 is provided with a through hole 3. The axial direction of the through hole 3 is perpendicular to the wave-proof grid plate 1. When the dam wave-preventing structure is installed, the through holes 3 in the connecting blocks 11 can be used as connecting nodes for penetrating fixing devices such as anchor bolts.

Referring to fig. 2 and 3, each layer of wave-proof grid plate 1 is provided with a fixing mechanism, and the fixing mechanism is located between two layers of wave-proof grid plates 1.

Referring to fig. 2 and 4, the fixing mechanism includes a plurality of fixing blocks 2 corresponding to regular hexagonal grid positions on the wave-proof grid plate 1 one by one, and the fixing blocks 2 are disposed on the same side of the wave-proof grid plate 1. In this embodiment, the fixing block 2 is annular, and the axial direction of the fixing block 2 is also perpendicular to the wave-resisting grid plate 1. Six equal-length reinforcing rods 21 are arranged at equal intervals on the periphery of each fixing block 2, and one ends, far away from the fixing blocks 2, of the six reinforcing rods 21 are respectively connected with the connecting blocks 11 at six nodes of the regular hexagonal grids at corresponding positions on the wave-resisting grid plate 1 to form a three-dimensional hexagonal pyramid structure. The reinforcing rod 21 is also a hollow cylindrical rod.

Referring to fig. 2 and 3, the positions of the fixed blocks 2 of the fixed structure on the two wave-proof grid plates 1 correspond to each other one by one, the connecting bolts 4 are jointly penetrated between the two fixed blocks 2 at the corresponding positions, and the end parts of the connecting bolts 4 are in threaded connection with the connecting nuts 41, so that a three-dimensional net structure is formed between the two wave-proof grid plates 1. When the device is used for dam wave prevention, the device can play a similar natural mangrove root system net structure, can effectively absorb and slow down the impact force of waves, and plays a role in protecting a dam body.

Referring to fig. 3, in order to further increase the buffering and absorbing effects of the dam wave-protecting structure on the wave impact force, each reinforcing rod 21 is sleeved with a plurality of spherical elastic resistance-increasing balls 5 made of rubber. The surface of the elastic resistance-increasing ball 5 is provided with a plurality of strip-shaped or dot-shaped grooves 51. In this embodiment, three elastic resistance-increasing balls 5 are sleeved on each reinforcing rod 21, and the grooves 51 on the surfaces of the elastic resistance-increasing balls 5 are in a strip shape. The arrangement of the groove 51 increases the specific surface area of the elastic resistance-increasing ball 5, so that when waves impact, the elastic resistance-increasing ball 5 can utilize the self elastic deformation capacity or rotate to buffer the wave impact acting force, thereby reducing the direct damage of the dam body impacted by the waves.

The implementation principle of the embodiment is as follows: the wave-proof grid plates 1 in the honeycomb grid shape and the fixing mechanism arranged between the wave-proof grid plates 1 are utilized to form a three-dimensional net structure, the effect similar to a natural mangrove root net can be achieved, the impact effect of waves can be effectively absorbed, and the purpose of protecting the dam is achieved.

Example 2:

a flood control dam, see figures 5 and 6, comprising a dam body 6, the dam body 6 comprising a face 61 and a back 62. In this embodiment, the dam wave-preventing structure in embodiment 1 is uniformly laid on the upstream surface 61 of the dam body 6.

Referring to fig. 6 and 7, when the wave structures are laid, the respective dam wave structures are engaged with each other in the manner shown in fig. 7. A plurality of anchoring rods 63 are inserted on the dam body 6, and the part of the anchoring rods 63 exposed out of the dam body 6 is a threaded section. The positions of the anchoring rods 63 correspond one-to-one to the positions of the connection blocks 11 on the dam wave-protecting structure. When the dam wave-preventing structure is installed, the anchoring rods 63 sequentially penetrate through the through holes 3 in the connecting blocks 11 at the corresponding positions of the two layers of wave-preventing grid plates 1, and are sleeved with the fastening nuts 631 for locking. When the wave-proof grid plates 1 are fixed, the two layers of wave-proof grid plates 1 are sequentially fixed by fastening nuts 631.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A dyke flood control structure which characterized in that: comprises two layers of wave-proof grid plates (1) which are oppositely arranged; the wave-resisting grid plate (1) is in a cellular grid shape and comprises a plurality of connecting blocks (11) distributed at nodes of the cellular grid and a plurality of connecting rods (12) connected between every two adjacent connecting blocks (11); fixing structures are arranged on the opposite sides of the wave-resisting grid plates (1);

the fixing structure comprises a plurality of fixing blocks (2) which are the same in number as the honeycomb grids on the wave-proof grid plate (1) and correspond to the honeycomb grids in position one by one, and reinforcing rods (21) are connected between each fixing block (2) and the connecting blocks (11) at six nodes of the corresponding honeycomb grids;

all opened through hole (3), two on connecting block (11) and fixed block (2) fixed knot constructs fixed block (2) position one-to-one and connect through coupling assembling.

2. A dyke flood protection structure according to claim 1, characterized in that: the connecting assembly comprises a connecting bolt (4) penetrating through the through hole (3) in the fixing block (2) and a connecting nut (41) in threaded connection with the connecting bolt (4).

3. A dyke flood protection structure according to claim 1, characterized in that: the fixed block (2) is in a circular ring shape.

4. A dyke flood protection structure according to claim 3, wherein: the lengths of the reinforcing rods (21) connected with the same fixing block (2) are equal.

5. A dyke flood protection structure according to claim 1, characterized in that: the connecting block (11) is spherical.

6. A dyke flood protection structure according to claim 1, characterized in that: the connecting rod (12) and the reinforcing rod (21) are both hollow metal round rods.

7. An embankment flood protection structure according to any one of claims 1 to 6, wherein: the reinforcing rod (21) is sleeved with a plurality of elastic resistance-increasing balls (5).

8. A dyke flood protection structure according to claim 7, wherein: the surface of the elastic resistance-increasing ball (5) is provided with a plurality of dot-shaped grooves (51) or strip-shaped grooves (51).

9. A flood control dam comprising a dam body (6), said dam body (6) comprising an inclined upstream face (61) and a downstream face (62), characterized in that: -laying a number of dam flood protection structures according to any of claims 1-8 on the upstream (61) and/or downstream (62) surfaces of the dam (6).

10. A flood barrier according to claim 9, wherein: a plurality of anchoring rods (63) are inserted into the upstream surface (61) of the dam body (6) along the direction vertical to the upstream surface (61), and each connecting block (11) on the wave-proof grid plate (1) attached to the upstream surface (61) of the dam body (6) corresponds to one anchoring rod (63); one end of the anchoring rod (63) extending out of the dam body (6) penetrates through the connecting block (11) to be arranged, and the tail end of the anchoring rod is in threaded connection with a fastening nut (631).