CN221052645U - Cofferdam river-facing side anti-flushing and anti-seepage device - Google Patents
Cofferdam river-facing side anti-flushing and anti-seepage device Download PDFInfo
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- CN221052645U CN221052645U CN202322808994.7U CN202322808994U CN221052645U CN 221052645 U CN221052645 U CN 221052645U CN 202322808994 U CN202322808994 U CN 202322808994U CN 221052645 U CN221052645 U CN 221052645U
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- cofferdam
- seepage
- river
- gabion
- ribs
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Links
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims abstract description 21
- 239000004575 stone Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims 1
- 230000001012 protector Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
An anti-scour and anti-seepage device for the river-facing side of a cofferdam belongs to the technical field of building construction, and particularly relates to a facility for scour protection of the river-facing side of the cofferdam. The dam comprises a blocking system and an anti-seepage system, the key technology of the anti-seepage system is that the blocking system comprises a retaining wall and guard feet, the retaining wall is stepped along the river facing side of the cofferdam by reinforced gabions, stone is filled in each reinforced gabion, the guard feet are fully paved at the position of the slope feet of the cofferdam by a blocking piece, and the anti-seepage system is provided with a guard face on the outer surface of the reinforced gabion. The beneficial effects of the utility model are as follows: the retaining wall and the foot protector form a blocking system, the retaining wall is piled on the river side of the cofferdam slope, and the surface of the retaining wall is provided with the face protector, so that water flow can be prevented from penetrating into and flushing the cofferdam body, and the anti-seepage effect is achieved. 2. And a blocking piece is arranged at the toe of the cofferdam, so that small particles flushed by water flow can be effectively retained and accumulated, and the soil and stone loss of the cofferdam body is reduced.
Description
Technical field:
An anti-scour and anti-seepage device for the river-facing side of a cofferdam belongs to the technical field of building construction, and particularly relates to a facility for scour protection of the river-facing side of the cofferdam.
The background technology is as follows:
The cofferdam is a temporary enclosure structure built for building a permanent hydraulic facility in hydraulic engineering construction. The water and soil are prevented from entering the building construction position, so that water is drained in the cofferdam, a foundation pit is excavated, and the building is constructed. The side of the cofferdam facing the river is flushed by water flow all the year round, so that the cofferdam is easy to damage, and the built cofferdam has not only the anti-flushing function, but also the anti-seepage function.
The utility model comprises the following steps:
The utility model aims to solve the technical problem of providing a cofferdam device with an anti-scouring function and an anti-seepage function. The technical scheme is as follows:
The key technology of the anti-flushing and anti-seepage device comprises a blocking system and an anti-seepage system, wherein the blocking system comprises a retaining wall and foot protection, the retaining wall is stepped along the river side of the cofferdam by reinforced gabions, stone is filled in each reinforced gabion, the foot protection is fully paved at the position of the slope foot of the cofferdam by a blocking piece, and the anti-seepage system is provided with a protection surface on the outer surface of the reinforced gabion.
The reinforced gabion comprises a gabion body and a top cover positioned at the top of the gabion body, wherein the top cover and the gabion body are formed by connecting frameworks and distribution ribs.
The framework is composed of side line main ribs and middle reinforcing ribs.
Each reinforced gabion is connected with the adjacent reinforced gabion of the same layer into a whole in a lap joint way through connecting ribs.
The blocking piece adopts block stones.
The facing is a layer of C20 concrete poured on the outer surface of the reinforced gabion and with the thickness of 20-30 cm.
Compared with the prior art, the utility model has the following beneficial effects:
1. the retaining wall and the foot protector form a blocking system, the retaining wall is piled on the river side of the cofferdam slope, and the surface of the retaining wall is provided with the face protector, so that water flow can be prevented from penetrating into and flushing the cofferdam body, and the anti-seepage effect is achieved.
2. And a blocking piece is arranged at the toe of the cofferdam, so that small particles flushed by water flow can be effectively retained and accumulated, and the soil and stone loss of the cofferdam body is reduced.
3. The retaining wall stacking construction and the cofferdam filling can be simultaneously carried out, the cofferdam can be prevented from sliding in a large area during filling, and massive particulate matters can be integrally prevented from losing after the cofferdam is filled, so that an effective protection effect is achieved.
Description of the drawings:
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a front view of the present utility model;
Fig. 3 is a schematic view of the construction of the reinforced gabion of the present utility model.
The specific embodiment is as follows:
The present utility model will be further described with reference to the following specific embodiments, which are intended to be illustrative of the principles of the present utility model and not in any way limiting, nor will the same or similar techniques be used in connection with the present utility model beyond the scope of the present utility model.
Referring to fig. 1-3, a cofferdam river-side anti-impact seepage-proofing device comprises a blocking system and a seepage-proofing system, and the key technology is that the blocking system comprises a retaining wall and foot protectors, wherein the retaining wall is orderly staggered and horizontally stacked into a step shape along the river-side of the cofferdam by a reinforced gabion 1 with a cube structure, stones are filled in each reinforced gabion 1, and the retaining wall is provided with a slope ratio of 1 from the bottom of a back slope of the cofferdam: 1-1.5, the feet are fully paved at the position of the cofferdam slope feet by a blocking piece 2, and the seepage prevention system is that a protecting surface 3 is arranged on the outer surface of the reinforced gabion 1.
The optimal size of the single reinforced gabion 1 is 2m multiplied by 1m (length multiplied by width multiplied by height), the reinforced gabion 1 comprises a gabion body and a top cover positioned at the top of the gabion body, and the top cover and the gabion body are formed by connecting a framework 11 with distribution ribs 12 forming a grid.
The framework 11 is composed of a side line main rib and a middle reinforcing rib.
The main side line ribs and the middle reinforcing ribs are made of C20 screw thread steel.
The distributing ribs 12 are made of C14 screw thread steel, and the distance between the distributing ribs 12 is 15-20 cm.
Each reinforced gabion 1 is connected with the adjacent reinforced gabion 1 on the same layer in a lap joint way through at least 2-3 connecting ribs 4 to form a whole.
The connecting ribs 4 are made of C25 screw steel and are longitudinally distributed in a through length mode.
The blocking piece 2 adopts block stones.
The facing 3 is a layer of C20 concrete poured on the outer surface of the reinforced gabion 1 and has the thickness of 20-30 cm.
The utility model has the following steps when in construction:
(1) Manufacturing the reinforced gabion 1 in a reinforced bar processing field, wherein the size of each reinforced gabion 1 can be 2m multiplied by 1m (length multiplied by width multiplied by height), the main side ribs and the middle reinforcing ribs of the framework 11 are C20 threaded steel, the distributing ribs 12 are C14 threaded steel, the distance between the distributing ribs 12 is 15-20 cm, and the welding or binding of the distributing ribs 12, the main side ribs and the middle reinforcing ribs of the framework 11 are firm; the top cover structure and the main body structure are made of the same materials;
(2) Installing the reinforced gabions 1 layer by manually matching with a crane from a cofferdam back slope, wherein each reinforced gabion 1 is connected with the reinforced gabions 1 adjacent to the same layer into a whole in a lap joint way through at least 2-3 through long connecting ribs 4;
(3) After the reinforced gabion 1 is installed, loading stones into the reinforced gabion 1 by adopting a back shovel excavator, wherein the grain size of the stones is larger than the grid spacing of the distributing ribs 12, and covering a top cover after the stones are loaded;
(4) Casting a concrete facing 3 on the outer surface of the reinforced gabion 1, wherein the thickness of the concrete of the facing is 20-30 cm;
(5) The concrete protection surface 3 at the toe is fully paved with a blocking piece 2, and the blocking piece 2 is of a block stone structure.
Claims (9)
1. The utility model provides a cofferdam is towards river side scour protection anti seepage device, includes blocking system and prevention of seepage system, characterized by blocking system includes barricade and banket, and the barricade is by steel bar gabion (1) along cofferdam towards river side echelonment, and each steel bar gabion (1) intussuseption is full of building stones, and the banket is by blocking piece (2) full-berth in cofferdam toe position, prevention of seepage system is at steel bar gabion (1) surface setting face guard (3).
2. The anti-seepage device for the river side of the cofferdam according to claim 1, which is characterized in that the reinforced gabion (1) comprises a basket body and a top cover positioned at the top of the basket body, and the top cover and the basket body are formed by connecting a framework (11) and a distributing rib (12).
3. The cofferdam river-side impact-resistant and seepage-proofing device according to claim 2, wherein the framework (11) is composed of side line main ribs and middle reinforcing ribs.
4. The water-proof and seepage-proofing device for river side of cofferdam according to claim 3, wherein the main rib of side line and the middle reinforcing rib are made of C20 screw steel.
5. The anti-flushing and anti-seepage device for the river side of the cofferdam according to claim 2, which is characterized in that the distributing ribs (12) are made of C14 screw thread steel, and the distance between the distributing ribs (12) is 15 cm to 20cm.
6. The anti-impact and anti-seepage device for the river side of the cofferdam according to claim 1, wherein each reinforced gabion (1) is connected with the reinforced gabion (1) adjacent to the same layer into a whole in a lap joint way through connecting ribs (4).
7. The anti-impact and anti-seepage device for the river side of the cofferdam according to claim 1, wherein the connecting ribs (4) are made of C25 screw steel.
8. The device for preventing water seepage of cofferdam river facing side according to claim 1, wherein the blocking member (2) adopts rock block.
9. The anti-impact and anti-seepage device for the river side of the cofferdam according to claim 1, wherein the facing (3) is a layer of C20 concrete which is poured on the outer surface of the reinforced gabion (1) and has the thickness of 20-30 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322808994.7U CN221052645U (en) | 2023-10-18 | 2023-10-18 | Cofferdam river-facing side anti-flushing and anti-seepage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322808994.7U CN221052645U (en) | 2023-10-18 | 2023-10-18 | Cofferdam river-facing side anti-flushing and anti-seepage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221052645U true CN221052645U (en) | 2024-05-31 |
Family
ID=91224915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322808994.7U Active CN221052645U (en) | 2023-10-18 | 2023-10-18 | Cofferdam river-facing side anti-flushing and anti-seepage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221052645U (en) |
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2023
- 2023-10-18 CN CN202322808994.7U patent/CN221052645U/en active Active
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