CN213448309U - Modular scour prevention type shore protection structure - Google Patents

Abstract

The utility model relates to a combined scour prevention type revetment structure, which comprises a pile wall and a hinge row, wherein the pile wall is positioned at the bottom of a revetment side, a cap beam is arranged at the top of the pile wall, a connecting ring is arranged on the end surface of the cap beam positioned at a river side, the hinge row is fixed through the connecting ring, the hinge row is positioned on a bank slope and a river bed, and a geotextile reverse filter layer and a riprap cushion layer are sequentially paved between the bank slope and the river bed from bottom to top; the utility model has the advantages that: by the combined scour prevention type bank protection structure, the problems of collapse and landslide and water and soil loss caused by strong scouring action of water flow on the riverway beaches are solved; the structure is stable, the construction is convenient, the maintenance cost is low, and the protection effect is good.

Description

Modular scour prevention type shore protection structure

Technical Field

The utility model belongs to the technical field of the hydraulic engineering shore protection, especially, relate to a modular scour prevention type shore protection structure.

Background

The long-term stability of the river is a necessary condition for human survival, and is also a powerful guarantee for promoting the sustainable development of regional economy and society and constructing a good environment for harmonious symbiosis between human beings and water resources. At present, river regulation still faces a plurality of problems, wherein the common and more harmful problem is erosion of river beaches by water flow. If the riverway shoals are subjected to the scouring action of water flow for a long time, the original scouring balance is broken, so that the slope of a scouring section is gradually steep, the stability of the slope is greatly reduced, the risk of collapse and landslide of the shoals is aggravated, serious water and soil loss is caused, the life and property safety of people is threatened, and if buildings or other basic supporting facilities are built along the shore, serious safety accidents and economic losses can occur. Especially during flood period, the problem of erosion and erosion of riverway beaches is especially prominent, and great natural disasters and immeasurable loss are possibly caused. In order to solve the problem of strong water flow scouring erosion of riverway beaches, various revetment structures of different structural types are constructed and implemented, and common revetment structures mainly comprise riprap, dry masonry, grout (irrigation) masonry, a steel reinforcement gabion net, concrete, interlocking blocks, soft body rows, geotechnical formwork bags, pile foundations and the like. Through the improvement and treatment of engineering measures, the river channel shoals are effectively protected, but the existing revetment structure also exposes some problems in the practical application process, such as high requirement on application conditions, limited application range, difficulty in material taking, overhigh manufacturing cost, complex construction, long construction period, incapability of ensuring the protection effect for a long time, large later-period maintenance workload, high maintenance cost and the like, and the popularization and the use of the revetment structure are influenced to a certain degree. Therefore, it is highly desirable to construct more economical and effective revetment facilities to better maintain and consolidate the long-term stability of the river and ensure the normal functioning thereof.

Disclosure of Invention

An object of the utility model is to overcome the not enough of prior art existence, and provide a modular scour prevention type shore protection structure, mainly be applied to the renovation and treatment in river course to solve the river course beach and lead to collapsing landslide, soil erosion and water loss's problem because of rivers wash away the effect by force.

The utility model aims at accomplishing through following technical scheme, this kind of modular scour prevention type shore protection structure includes that pile wall, hinge are arranged, the pile wall is located the bottom of shore protection side, and is in the pile wall top is provided with the cap beam to be provided with the go-between on the cap beam end face that is located the river side, through the go-between is fixed with the hinge row, the hinge row is located bank slope and riverbed, and bank slope and riverbed and from up having laid geotextile reversed filter, indiscriminate stone bed course down in proper order between the hinge row.

Preferably, the pile wall is formed by sequentially arranging and combining a plurality of plastic steel sheet piles, and adjacent plastic steel sheet piles are fixedly connected together in an inserting mode.

Preferably, the cross section of the plastic steel sheet pile is of a concave structure, and two ends of the plastic steel sheet pile are respectively provided with an inserting hook.

Preferably, the adjacent plastic steel sheet piles are fixedly connected together in a positive and negative insertion mode through the insertion hooks, and the plurality of plastic steel sheet piles are sequentially and alternately arranged and combined in the positive and negative directions.

Preferably, the hinge row comprises a plurality of ballast blocks and connecting chains, and the ballast blocks are arranged in an array and connected through the connecting chains; and the spacing between adjacent ballast blocks is all equal.

Preferably, the ballast blocks are connected at the periphery by connecting chains, wherein one connecting chain is arranged in parallel to the water flow direction, and two connecting chains are arranged in perpendicular to the water flow direction.

Preferably, the ballast blocks are divided into first ballast blocks and second ballast blocks, wherein the ballast blocks in two rows at both end portions in the water flow direction and in two rows at the end portion of the riverbed are first ballast blocks, and the thickness of each first ballast block is 1.2 to 1.5 times that of each second ballast block.

The utility model has the advantages that: by the combined scour prevention type bank protection structure, the problems of collapse and landslide and water and soil loss caused by strong scouring action of water flow on the riverway beaches are solved; the structure is stable, the construction is convenient, the maintenance cost is low, and the protection effect is good.

Drawings

Fig. 1 is a schematic sectional structure of the present invention.

Fig. 2 is a schematic view of the hinge row connection structure of the present invention.

Fig. 3 is an enlarged schematic view of a portion a of fig. 2.

The reference numbers in the drawings are respectively: 1. pile wall; 2. a hinge row; 3. a cap beam; 4. a connecting ring; 5. a bank slope; 6. a riverbed; 7. a geotextile reverse filter layer; 8. a riprap cushion layer; 11. a plastic steel sheet pile; 21. a ballast mass; 22. a connecting chain; 11-1, inserting hooks; 21-1, a first ballast mass; 21-2, second ballast mass.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings: as shown in the attached drawings 1 and 2, the utility model comprises a pile wall 1 and a hinge row 2, wherein the pile wall 1 is positioned at the bottom of a bank protection side, a cap beam 3 is arranged at the top of the pile wall 1 for enhancing the structural integrity, a connecting ring 4 is arranged on the end surface of the cap beam 3 positioned at a river side, a hinge row 2 is fixed through the connecting ring 4, the hinge row 2 is positioned on a bank slope 5 and a river bed 6, and a geotextile reverse filter layer 7 and a riprap cushion layer 8 are sequentially paved between the bank slope 5 and the river bed 6 and the hinge row 2 from bottom to top; by the combined scour prevention type bank protection structure, the problems of collapse and landslide and water and soil loss caused by strong scouring action of water flow on the riverway beaches are solved; the structure is stable, the construction is convenient, the maintenance cost is low, and the protection effect is good.

The pile wall 1 is formed by sequentially arranging and combining a plurality of plastic steel sheet piles 11, and the adjacent plastic steel sheet piles 11 are fixedly connected together in an inserting mode, so that the construction is convenient, and the strength of the pile wall is better; and the driving depth and the length of the plastic steel sheet pile are determined according to the specific engineering design requirements.

As shown in fig. 3, the cross section of the plastic steel sheet pile 11 is a concave structure, and two ends of the plastic steel sheet pile 11 are respectively provided with an inserting hook 11-1; the adjacent plastic steel sheet piles 11 are fixedly connected together in a positive and negative insertion mode through the insertion hooks 11-1, and the plurality of plastic steel sheet piles 11 are sequentially and alternately arranged and combined in the positive and negative directions, so that the pile wall with the wave-shaped structure is formed, the stress area is larger, the structure is more stable, and the construction is convenient.

The hinge row 2 comprises a plurality of ballast blocks 21 and connecting chains 22, the ballast blocks 21 are made of precast concrete materials, and the ballast blocks 21 are arranged in an array and connected through the connecting chains 22; and the intervals between adjacent ballast blocks 21 are equal, the intervals between the ballast blocks are determined according to the scouring degree of the protection river reach, the general interval is 5-20 cm, and on the premise of not influencing the flexible deformation of the concrete hinge row, the stronger the scouring degree of the protection river reach is, and the smaller the intervals between the ballast blocks are.

All around between the ballast block body 21 all forms through connecting chain 22 connection, because of the reason of rivers direction, for the connecting chain connection stability between making ballast block body 21 is better, wherein, the connecting chain 22 that is arranged on a parallel with rivers direction sets up to one, and the connecting chain 22 that the perpendicular to rivers direction was arranged sets up to two.

The ballast blocks 21 are divided into first ballast blocks 21-1 and second ballast blocks 21-2, the ballast blocks in two rows at the end parts of the two ends along the water flow direction and two rows at the tail part of the riverbed are the first ballast blocks 21-1, and the thickness of the first ballast blocks 21-1 is 1.2-1.5 times of that of the second ballast blocks 21-2, so that the overall stability of the hinge row is enhanced.

In order to ensure that the paving base surface of the concrete hinge row is smooth and prevent the bottom geotextile from aging, a riprap cushion layer 8 is paved on the geotextile reverse filter layer 7, the riprap cushion layer 8 is required to have good gradation and the grain size composition is required to be reasonably selected in combination with the space between the ballast blocks of the concrete hinge row, and the thickness of the riprap cushion layer 8 can be determined according to the scouring degree of the protection river reach. The paving range of the riprap cushion layer 8 is the region from the front edge of the pile wall 1 to the river bed 6 which is not less than 2 m.

In order to prevent the protected soil particles in the concrete hinge row laying range from losing from the gap between the ballast block 21 and the riprap cushion layer 8, a layer of geotextile is laid at the bottom of the riprap cushion layer 8, and the material meets the requirements of soil conservation, water permeability and clogging prevention. Should carry out the flattening to the basement before laying, ensure that geotextile is smooth-going after laying, the surface does not have fold and closed angle.

The present invention is not limited to the above embodiments, and any change is made on the shape or material composition, and all the structural designs provided by the present invention are all the deformation of the present invention, which should be considered within the protection scope of the present invention.

Claims (7)

1. The utility model provides a modular scour prevention type shore protection structure, includes piling wall (1), hinge row (2), its characterized in that: pile wall (1) is located the bottom of shore protection side, and is in pile wall (1) top is provided with cap beam (3) to be provided with go-between (4) on cap beam (3) terminal surface that is located the river side, through go-between (4) are fixed with hinge row (2), hinge row (2) are located bank slope (5) and riverbed (6) on, and bank slope (5) and riverbed (6) and from down up having laid geotextile reversed filter bed (7), indiscriminate stone bed course (8) in proper order between hinge row (2).

2. The modular scour protection revetment structure of claim 1, wherein: the pile wall (1) is formed by sequentially arranging and combining a plurality of plastic steel sheet piles (11), and adjacent plastic steel sheet piles (11) are fixedly connected together in an inserting mode.

3. The modular scour protection revetment structure according to claim 2, wherein: the cross section of the plastic steel sheet pile (11) is of a concave structure, and two ends of the plastic steel sheet pile (11) are respectively provided with an inserting hook (11-1).

4. The modular scour protection revetment structure according to claim 3, wherein: the adjacent plastic steel sheet piles (11) are connected and fixed together in a positive and negative insertion mode through insertion hooks (11-1), and the plurality of plastic steel sheet piles (11) are sequentially and alternately arranged and combined in the positive and negative directions.

5. The modular scour protection revetment structure of claim 1, wherein: the hinge row (2) comprises a plurality of ballast blocks (21) and connecting chains (22), wherein the ballast blocks (21) are arranged in an array and are connected through the connecting chains (22); and the spacing between adjacent ballast blocks (21) is equal.

6. The modular scour protection revetment structure according to claim 5, wherein: all around between the ballast block body (21) all form through connecting chain (22) connection, wherein, the connecting chain (22) that arranges parallel to the rivers direction sets up to one, and the connecting chain (22) that the perpendicular to rivers direction arranged sets up to two.

7. The modular scour protection revetment structure according to claim 5, wherein: the ballast blocks (21) are divided into first ballast blocks (21-1) and second ballast blocks (21-2), the ballast blocks in two rows at the end parts of two ends in the water flow direction and two rows at the tail part of a riverbed are the first ballast blocks (21-1), and the thickness of the first ballast blocks (21-1) is 1.2-1.5 times that of the second ballast blocks (21-2).

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