CN220266435U - River bed bottom protection structure - Google Patents
River bed bottom protection structure Download PDFInfo
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- CN220266435U CN220266435U CN202322077255.5U CN202322077255U CN220266435U CN 220266435 U CN220266435 U CN 220266435U CN 202322077255 U CN202322077255 U CN 202322077255U CN 220266435 U CN220266435 U CN 220266435U
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- concrete block
- block layer
- concrete
- deformation joint
- river bed
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000004575 stone Substances 0.000 claims description 27
- 239000004746 geotextile Substances 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000010426 asphalt Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000009991 scouring Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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Abstract
The utility model discloses a river bed bottom protection structure, which comprises a concrete block layer arranged on a river bed, wherein the concrete block layer comprises a plurality of concrete block layer sections spliced in sequence along the water flow direction, one part of the concrete block layer sections comprise a plurality of first concrete blocks spliced in sequence along the vertical water flow direction and are called first concrete block layer sections, the other part of the concrete block layer sections comprise a plurality of second concrete blocks spliced in sequence along the vertical water flow direction and are called second concrete block layer sections, the top end height of each first concrete block is higher than the top end height of each second concrete block, and every two adjacent first concrete block layer sections are separated at intervals through one second concrete block layer section. The utility model can coarsen the river bed and increase the roughness of the river bed, further can effectively resist the scouring of the river bed and limit the undercut of the river bed, and is beneficial to the stabilization of the river bed and the bank slope.
Description
Technical Field
The utility model belongs to the technical field of hydraulic engineering, and particularly relates to a river bed bottom protection structure.
Background
After a hydraulic building is built on a river course with narrow river bed or small river bed soil impact resistance flow velocity, when the hydraulic building is used for intensively draining water, the river bed is extremely easy to be flushed by high-speed water flow, so that the safety of river bank slopes and the hydraulic building is endangered, and therefore, the river bed needs to be effectively protected, and the purpose of protecting the river bed, the bank slopes and the hydraulic building is achieved.
The conventional river bed bottom protection structure is generally a polished stone, masonry or concrete structure, and as the supervision of ecological environment protection is increased, the quantity of stone mined is gradually shrunken, the quality and quantity of stone which can be purchased in the market are difficult to meet the engineering technical requirements, other materials are adopted to replace the traditional stone to be the trend of engineering construction, and the common concrete river bed bottom protection structure has the defects of low river bed roughness and poor deformation capability of a river bed, can not effectively resist river bed scouring, can not limit the undercut of the river bed, and is unfavorable for the stabilization of the river bed and bank slope.
Disclosure of Invention
In view of the defects in the prior art, the utility model provides a river bed bottom protection structure which can coarsen a river bed and increase the roughness of the river bed, further can effectively resist the scouring of the river bed and limit the undercut of the river bed, and is beneficial to the stabilization of the river bed and a bank slope.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a river bed bottom protection structure, includes the concrete block layer that sets up on the river bed, the concrete block layer includes a plurality of concrete block layer sections of splicing in proper order along the water flow direction, and wherein a portion concrete block layer section all includes a plurality of first concrete blocks of splicing in proper order along perpendicular water flow direction to refer to first concrete block layer section, another portion concrete block layer section all includes a plurality of second concrete blocks of splicing in proper order along perpendicular water flow direction, and refer to second concrete block layer section, the top height of first concrete block is higher than the top height of second concrete block, and every two adjacent first concrete block layer sections are separated through one of them second concrete block layer section interval.
Further, the surfaces of the first concrete block and the second concrete block are rough surfaces.
Further, the river bed is characterized by further comprising geotechnical cloth paved on the river bed, wherein the geotechnical cloth is provided with a broken stone cushion layer, the concrete block layer is arranged on the broken stone cushion layer, and the geotechnical cloth and the broken stone cushion layer are matched to form a reverse filtering cushion layer.
Further, the first concrete block layer segment and the second concrete block layer segment are formed in a block spacing in-situ casting mode.
Further, a first deformation joint which is vertical and is arranged along the water flow direction is arranged between the adjacent first concrete blocks, a second deformation joint which is vertical and is arranged along the water flow direction is arranged between the adjacent second concrete blocks, and a third deformation joint which is vertical and is arranged along the vertical water flow direction is arranged between the adjacent first concrete blocks and the adjacent second concrete blocks.
Further, the plurality of first deformation joints of each first concrete block layer segment are staggered with the plurality of second deformation joints of adjacent second concrete block layer segments.
Further, a first caulking plate is arranged in the first deformation joint, a second caulking plate is arranged in the second deformation joint, and a third caulking plate is arranged in the third deformation joint.
Further, the widths of the first deformation joint, the second deformation joint and the third deformation joint are adjusted according to the particle sizes of broken stones in the broken stone cushion layer; the thickness of the first caulking plate is adjusted according to the width of the first deformation joint, the thickness of the second caulking plate is adjusted according to the width of the second deformation joint, and the thickness of the third caulking plate is adjusted according to the width of the third deformation joint.
Further, the first caulking plate, the second caulking plate and the third caulking plate are asphalt wood wire plates or polyethylene caulking plates.
Further, the geotextile is a short fiber needled non-woven geotextile, and the gravels in the gravels cushion layer are artificial graded gravels or natural pebbles.
Compared with the prior art, the utility model has the beneficial effects that:
the river bed bottom protection structure comprises a concrete block layer arranged on a river bed, wherein the concrete block layer comprises a plurality of concrete block layer sections spliced in sequence along the water flow direction, one part of the concrete block layer sections comprise a plurality of first concrete blocks spliced in sequence along the vertical water flow direction and are called first concrete block layer sections, the other part of the concrete block layer sections comprise a plurality of second concrete blocks spliced in sequence along the vertical water flow direction and are called second concrete block layer sections, the top end height of each first concrete block is higher than the top end height of each second concrete block, and every two adjacent first concrete block layer sections are separated by one second concrete block layer section; the first concrete blocks and the second concrete blocks on the river bed are arranged in a staggered manner along the water flow direction, so that the river bed bottom protection structure of the traditional polished stone or masonry can be replaced, the purposes of roughening the river bed and increasing the roughness of the river bed are achieved, the deformation capacity of the river bed is high, the river bed scouring can be effectively resisted, the river bed undercut can be limited, and the stability of the river bed and a bank slope is facilitated.
In the utility model, the surfaces of the first concrete block and the second concrete block are rough surfaces; this can further coarsen the river bed and increase the river bed roughness.
The river bed bottom protection structure further comprises geotextile paved on the river bed, wherein a broken stone cushion layer is arranged on the geotextile, a concrete block layer is arranged on the broken stone cushion layer, and the geotextile and the broken stone cushion layer are matched to form a reverse filtering cushion layer; thus, the reverse filtering cushion layer can play a role in protecting the soil body of the river bed.
According to the utility model, a first deformation joint which is vertical and is arranged along the water flow direction is arranged between adjacent first concrete blocks, a second deformation joint which is vertical and is arranged along the water flow direction is arranged between adjacent second concrete blocks, a third deformation joint which is vertical and is arranged along the water flow direction is arranged between adjacent first concrete blocks and second concrete blocks, a plurality of first deformation joints of each first concrete block layer section and a plurality of second deformation joints of adjacent second concrete block layer sections are staggered, a first joint filling plate is arranged in the first deformation joint, a second joint filling plate is arranged in the second deformation joint, and a third joint filling plate is arranged in the third deformation joint; the first concrete block layer segment is divided into a plurality of first concrete blocks through the first deformation joint and the corresponding first caulking plate, the second concrete block layer segment is divided into a plurality of second concrete blocks through the second deformation joint and the corresponding first caulking plate, and the first concrete block layer segment and the second concrete block layer segment are convenient for in-situ casting construction through the cooperation of the third deformation joint and the corresponding third caulking plate.
Drawings
FIG. 1 is a schematic top view of a river bed bottom cover structure of the present utility model with first, second and third caulking plates hidden;
FIG. 2 is a schematic view of the first and second caulking plates of FIG. 1 in the A-A direction;
FIG. 3 is a schematic view of the B-B direction of FIG. 1 after a third caulking plate.
The reference numerals in the drawings illustrate: 1. the concrete joint comprises a first concrete block layer segment 101, a first concrete block, a second concrete block layer segment 2, a second concrete block 201, a second concrete block 3, geotextile 4, a broken stone cushion layer 5, a first deformation joint 6, a second deformation joint 7, a third deformation joint 8, a first joint filling plate 9, a second joint filling plate 10 and a third joint filling plate.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present utility model and are not intended to be limiting.
In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1 to 3, a river bed bottom protection structure comprises a concrete block layer arranged on a river bed, wherein the concrete block layer comprises a plurality of concrete block layer sections spliced in sequence along the water flow direction, a part of the concrete block layer sections comprise a plurality of first concrete blocks 101 spliced in sequence along the vertical water flow direction and are called first concrete block layer sections 1, another part of the concrete block layer sections comprise a plurality of second concrete blocks 201 spliced in sequence along the vertical water flow direction and are called second concrete block layer sections 2, the top end height of each first concrete block 101 is higher than the top end height of each second concrete block 201, and every two adjacent first concrete block layer sections 1 are separated by one second concrete block layer section 2, wherein the first concrete block layer sections 1 and the second concrete block layer sections 2 are formed in a block spacing on-site pouring mode. In fig. 1, the direction indicated by the arrow C is the water flow direction, and the direction indicated by the arrow D is the vertical water flow direction.
The first concrete blocks 101 and the second concrete blocks 201 on the river bed are arranged in a staggered manner along the water flow direction, so that the river bed bottom protection structure can replace the traditional stone throwing or stone laying, the purposes of roughening the river bed and increasing the roughness of the river bed are achieved, the deformation capacity of the river bed is high, the river bed scouring can be effectively resisted, the river bed undercut can be limited, the stability of the river bed and a bank slope is facilitated, and meanwhile, compared with the traditional stone throwing or stone laying river bed bottom protection structure, the river bed bottom protection structure can greatly reduce engineering cost.
In one embodiment, the surfaces of the first concrete block 101 and the second concrete block 201 are roughened. This can further coarsen the river bed and increase the river bed roughness. Wherein the length, width and thickness of the first concrete block 101 and the second concrete block 201 are adjusted according to the anti-scour performance requirements of the river bed.
In one embodiment of the present utility model, in one embodiment,
as shown in fig. 2-3, the river bed bottom protection structure further comprises geotextile 3 paved on the river bed, wherein a broken stone cushion layer 4 is arranged on the geotextile 3, a concrete block layer is arranged on the broken stone cushion layer 4, and the geotextile 3 and the broken stone cushion layer 4 are matched to form a reverse filtering cushion layer. Thus, the reverse filtering cushion layer can play a role in protecting the soil body of the river bed. Preferably, the geotextile 3 is a short fiber needled non-woven geotextile 3, and the gravels in the gravels cushion layer 4 are artificial graded gravels or natural pebbles.
As shown in fig. 1, a first deformation joint 5 which is vertical and arranged along the water flow direction is arranged between adjacent first concrete blocks 101, a second deformation joint 6 which is vertical and arranged along the water flow direction is arranged between adjacent second concrete blocks 201, and a third deformation joint 7 which is vertical and arranged along the water flow direction is arranged between adjacent first concrete blocks 101 and second concrete blocks 201; the first deformation joints 5 of each first concrete block layer segment 1 are staggered with the second deformation joints 6 of the adjacent second concrete block layer segments 2; a first caulking plate 8 is arranged in the first deformation joint 5, a second caulking plate 9 is arranged in the second deformation joint 6, see fig. 2, and a third caulking plate 10 is arranged in the third deformation joint 7, see fig. 3. The first concrete block layer segment 1 is thus divided into a plurality of first concrete blocks 101 by the first deformation joint 5 and the corresponding first caulking plate 8, the second concrete block layer segment 2 is divided into a plurality of second concrete blocks 201 by the second deformation joint 6 and the corresponding first caulking plate 8, and the in-situ casting construction of the first concrete block layer segment 1 and the second concrete block layer segment 2 is facilitated by the cooperation of the third deformation joint 7 and the corresponding third caulking plate 10.
Preferably, the widths of the first deformation joint 5, the second deformation joint 6 and the third deformation joint 7 are all adjusted according to the particle sizes of the crushed stones in the crushed stone cushion layer 4; the thickness of the first caulking plate 8 is adjusted according to the width of the first deformation joint 5, the thickness of the second caulking plate 9 is adjusted according to the width of the second deformation joint 6, and the thickness of the third caulking plate 10 is adjusted according to the width of the third deformation joint 7.
Preferably, the first caulking plate 8, the second caulking plate 9 and the third caulking plate 10 are all asphalt wood wool plates or polyethylene caulking plates.
The construction method of the river bed bottom protection structure comprises the following steps: firstly, leveling a natural river bed, paving geotextile 3 on the leveled river bed, paving a gravel cushion layer 4 on the geotextile 3, then erecting a vertical template on the gravel cushion layer 4, setting up a first concrete block 101 according to the design length, the design width and the design thickness, setting up a first caulking plate 8, a second caulking plate 9 and a third caulking plate 10 on the gravel cushion layer 4 in the template according to the design length, the design width and the design thickness of the first concrete block 201, pouring each first concrete block 101 in the first concrete block layer section 1, pouring each second concrete block 201 in the second concrete block layer section 2, wherein the first concrete block layer section 1 and the second concrete block layer section 2 are poured in situ through block separation, and napping the surfaces of each first concrete block 101 and each second concrete block 201 before initial setting, thereby completing the construction of the river bed bottom structure.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (10)
1. A river bed bottom protection structure which is characterized in that: including setting up the concrete block layer on the riverbed, the concrete block layer includes a plurality of concrete block layer sections of splicing in proper order along the water flow direction, and wherein some concrete block layer section all includes a plurality of first concrete blocks (101) of splicing in proper order along perpendicular water flow direction to refer to first concrete block layer section (1), another part concrete block layer section all includes a plurality of second concrete blocks (201) of splicing in proper order along perpendicular water flow direction to refer to second concrete block layer section (2), the top height of first concrete block (101) is higher than the top height of second concrete block (201), and every two adjacent first concrete block layer section (1) are separated through one of them second concrete block layer section (2) interval.
2. The riverbed bottom protection structure as recited in claim 1, wherein: the surfaces of the first concrete block (101) and the second concrete block (201) are rough surfaces.
3. The riverbed bottom protection structure as recited in claim 1, wherein: the concrete block body is arranged on the broken stone cushion layer (4), and the geotechnical cloth (3) and the broken stone cushion layer (4) are matched to form a reverse filtering cushion layer.
4. A riverbed bottom protection structure as claimed in claim 3, wherein: the first concrete block layer segment (1) and the second concrete block layer segment (2) are formed in a block spacing in-situ pouring mode.
5. The riverbed bottom protection structure as recited in claim 4, wherein: a first deformation joint (5) which is vertical and is arranged along the water flow direction is arranged between the adjacent first concrete blocks (101), a second deformation joint (6) which is vertical and is arranged along the water flow direction is arranged between the adjacent second concrete blocks (201), and a third deformation joint (7) which is vertical and is arranged along the vertical water flow direction is arranged between the adjacent first concrete blocks (101) and the adjacent second concrete blocks (201).
6. The riverbed bottom protection structure as recited in claim 5, wherein: the first deformation joints (5) of each first concrete block layer segment (1) are staggered with the second deformation joints (6) of the adjacent second concrete block layer segments (2).
7. The riverbed bottom protection structure as recited in claim 5, wherein: the first deformation joint (5) is internally provided with a first joint filling plate (8), the second deformation joint (6) is internally provided with a second joint filling plate (9), and the third deformation joint (7) is internally provided with a third joint filling plate (10).
8. The riverbed bottom protection structure as recited in claim 7, wherein: the widths of the first deformation joint (5), the second deformation joint (6) and the third deformation joint (7) are adjusted according to the particle sizes of broken stones in the broken stone cushion layer (4); the thickness of the first caulking plate (8) is adjusted according to the width of the first deformation joint (5), the thickness of the second caulking plate (9) is adjusted according to the width of the second deformation joint (6), and the thickness of the third caulking plate (10) is adjusted according to the width of the third deformation joint (7).
9. The riverbed bottom protection structure as recited in claim 7, wherein: the first caulking plate (8), the second caulking plate (9) and the third caulking plate (10) are asphalt wood wire plates or polyethylene caulking plates.
10. A riverbed bottom protection structure as claimed in claim 3, wherein: the geotextile (3) is a short fiber needled non-woven geotextile (3), and the gravels in the gravels cushion layer (4) are artificial graded gravels or natural pebbles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322077255.5U CN220266435U (en) | 2023-08-03 | 2023-08-03 | River bed bottom protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322077255.5U CN220266435U (en) | 2023-08-03 | 2023-08-03 | River bed bottom protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220266435U true CN220266435U (en) | 2023-12-29 |
Family
ID=89319551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322077255.5U Active CN220266435U (en) | 2023-08-03 | 2023-08-03 | River bed bottom protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220266435U (en) |
-
2023
- 2023-08-03 CN CN202322077255.5U patent/CN220266435U/en active Active
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