CN220908437U - High-strength impervious cofferdam structure - Google Patents
High-strength impervious cofferdam structure Download PDFInfo
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- CN220908437U CN220908437U CN202322619900.1U CN202322619900U CN220908437U CN 220908437 U CN220908437 U CN 220908437U CN 202322619900 U CN202322619900 U CN 202322619900U CN 220908437 U CN220908437 U CN 220908437U
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- cofferdam
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- steel sheet
- impervious
- soil
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- 239000002689 soil Substances 0.000 claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000004576 sand Substances 0.000 claims description 16
- 239000004575 stone Substances 0.000 claims description 12
- 238000010276 construction Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The application relates to the field of hydraulic engineering, and particularly discloses a high-strength impervious cofferdam structure which comprises a main body cofferdam and Lasen steel sheet piles, wherein the main body cofferdam is a plain soil cofferdam, the Lasen steel sheet piles are vertically inserted in the middle of the main body cofferdam, the Lasen steel sheet piles are arranged along the length direction of the main body cofferdam, and the lower ends of the Lasen steel sheet piles are inserted into a soil layer. According to the application, the Larson steel sheet piles are inserted into the main cofferdam, so that the structural strength of the main cofferdam can be improved, and meanwhile, the main cofferdam can fill up gaps of the Larson steel sheet piles, thereby improving the integral impermeability and being convenient to use.
Description
Technical Field
The application relates to the field of hydraulic engineering, in particular to a high-strength impervious cofferdam structure.
Background
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.
In the related art, large ponds, rivers and the like may be encountered in the urban road construction process, and in order to ensure urban road construction, a cofferdam mode is generally adopted to obstruct the ponds and the rivers, so that a working surface is formed. The conventional cofferdams generally comprise an earth-built cofferdam, an earth-rock mixed cofferdam, a steel sheet pile cofferdam and the like, and when the cofferdams are used for blocking water flow, the earth-built cofferdam and the earth-rock mixed cofferdam are found out that the water flow can take away soil layers of the cofferdams in the process of continuously flushing the water flow, so that the use is affected; the steel sheet pile cofferdam cannot block water flow. To this end, the inventors provide a high strength, impervious cofferdam structure.
Disclosure of Invention
In order to separate the water body, the application provides a high-strength impervious cofferdam structure which has the effects of high strength and good impervious performance.
The application provides a high-strength impervious cofferdam structure which adopts the following technical scheme:
The utility model provides a high strength impervious cofferdam structure, includes main part cofferdam and Lasen steel sheet pile, the main part cofferdam sets up to plain soil cofferdam, lasen steel sheet pile is vertical to be inserted and locates main part cofferdam middle part, lasen steel sheet pile is followed the length direction of main part cofferdam sets up, lasen steel sheet pile's lower extreme inserts the soil horizon.
By adopting the technical scheme, during construction, the main cofferdam is formed by piling soil at a construction position, and then the Fang Daru Lasen steel sheet piles are arranged on the main cofferdam, so that the integral structural strength of the Lasen steel sheet piles can be effectively improved; meanwhile, the soil of the main cofferdam fills gaps of Larson steel sheet piles, so that the integral impermeability can be effectively improved; and the main cofferdam is formed by construction, so that construction of Larson steel sheet piles is facilitated.
Optionally, a working platform is arranged at the top of the main cofferdam.
By adopting the technical scheme, the working platform is arranged at the top end of the main cofferdam, so that the pile driver can conveniently drive Larson steel sheet piles on the main cofferdam.
Optionally, two sides of the main cofferdam are provided with soil bag slope protection layers.
Through adopting above-mentioned technical scheme, set up the earth bag bank protection layer in the both sides of main part cofferdam, earth loss on the main part cofferdam can be reduced to earth bag bank protection layer.
Optionally, a sand stone layer is arranged between the main cofferdam and the soil bag slope protection layer.
Through adopting above-mentioned technical scheme, set up the sand stone layer between main part cofferdam and soil bag bank protection layer, when rivers are impacted, the sand stone layer can cushion rivers, prevents that rivers from directly impacting earth, leads to earth loss.
Optionally, the sand layer is arranged on one side of the main cofferdam close to the water body.
Through adopting above-mentioned technical scheme, set up the grit layer in being close to water one side, and the opposite side does not set up the sand stone layer, can effectively reduce cost.
Optionally, a steel wire mesh layer is covered on the outer side of the soil bag slope protection layer on one side of the main cofferdam, which is close to the water body.
Through adopting above-mentioned technical scheme, cover in soil bag bank protection layer outside and establish the wire net layer, can prevent that the rivers from being great from washing away the soil bag.
Optionally, a drainage open ditch is excavated at the bottom of one side of the main cofferdam far away from the water body.
Through adopting above-mentioned technical scheme, after the water of construction side is taken out more or less, excavate the drainage open ditch in main part cofferdam one side, rivers can flow in the drainage open ditch of low-lying, make things convenient for equipment to draw water.
Optionally, the slope rates of the two sides of the main cofferdam are set to be 1:2.
By adopting the technical scheme, the actual construction shows that when the slope rate reaches 1:2, the overall structural strength is high.
In summary, the present application includes at least one of the following beneficial technical effects:
1. During construction, the main cofferdam is formed by piling soil at a construction position, then the Larson steel sheet piles are arranged on the main cofferdam Fang Daru, so that the integral structural strength can be effectively improved, meanwhile, the gaps of the Larson steel sheet piles can be filled with the soil of the main cofferdam, the integral impermeability can be effectively improved, and the main cofferdam is formed by construction firstly, so that the construction of the Larson steel sheet piles is facilitated;
2. Soil bag slope protection layers are arranged on two sides of the main body cofferdam, so that soil loss on the main body cofferdam can be reduced by the soil bag slope protection layers;
3. Through setting up the sand stone layer between main part cofferdam and soil bag bank protection layer, when rivers are impacted, the sand stone layer can cushion rivers, prevents that rivers from directly impacting earth, leads to earth loss.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Reference numerals: 1. a main body cofferdam; 11. a working platform; 12. a sand layer; 13. a soil bag slope protection layer; 14. a steel wire mesh layer; 2. larson steel sheet piles; 3. a drain open ditch; 4. soil layer.
Detailed Description
The present application will be described in further detail with reference to fig. 1.
The embodiment of the application discloses a high-strength impervious cofferdam structure, which comprises a main cofferdam 1 and Lassen steel sheet piles 2, wherein the main cofferdam 1 is a plain soil cofferdam piled up by soil, and the Lassen steel sheet piles 2 are vertically inserted in the middle of the main cofferdam 1. The top of the main body cofferdam 1 is provided with the planar working platform 11, the main body cofferdam 1 is conveniently driven by the Larson steel sheet piles 2 through pile drivers on the working platform 11, the Larson steel sheet piles 2 are distributed along the length direction of the main body cofferdam 1, the lower end of the main body cofferdam 1 is inserted into the soil layer 4, and the stability of the whole structure can be effectively improved.
The slope rates of the two sides of the main cofferdam 1 are set to be 1:2, so that the overall structural strength can be improved, and the collapse of the two sides can be prevented better. The sand stone layer 12 is paved on one side of the main cofferdam 1, which is close to the water body, and the sand stone layer 12 is a mixture of cobblestones and coarse sand, so that water flow can be buffered, and the impact of water flow on soil is reduced. The soil bag slope protection layer 13 is paved on the upper side of the sand and stone layer 12 and one side of the main cofferdam 1, which is far away from the water body, the soil bag slope protection layer 13 is a protection layer piled up by using the snake skin-packed soil, the sand and stone layer 12 and the landslide of the main cofferdam 1 can be effectively pre-prevented, meanwhile, the soil bag slope protection layer 13 on one side of the water body can buffer water flow, the main cofferdam 1 is prevented from being directly impacted by the water flow, and soil loss is reduced.
A steel wire mesh layer 14 is arranged on one side of the main cofferdam 1 close to a water body, and the steel wire mesh layer 14 is a steel wire mesh covered on a soil bag slope protection layer 13, so that the soil bag can be prevented from being washed away by water flow when the water flow is fast.
A drainage open ditch 3 is excavated on the soil layer 4 at one side of the main body cofferdam 1 far away from the water body, and the drainage open ditch 3 is arranged along the length direction of the main body cofferdam 1. After the water on the construction side is pumped almost, a drainage open ditch 3 is excavated on one side of the main cofferdam 1, and water flow can flow into the drainage open ditch 3 in a low-lying position, so that equipment can conveniently pump water.
The embodiment of the application discloses a high-strength impervious cofferdam structure, which comprises the following implementation principles: the Larson steel sheet piles 2 are driven into the main cofferdam 1, so that the structural strength of the whole Larson steel sheet piles 2 can be effectively improved; and the clay of the main cofferdam 1 fills gaps of the Larson steel sheet piles 2, so that the overall permeability resistance is improved; the sand stone layer 12 and the soil bag slope protection layer 13 are arranged on one side, close to the water body, of the main cofferdam 1, water flow can be buffered, impact of the water flow on the main cofferdam 1 is reduced, soil loss is reduced, and overall strength is improved.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A high strength impervious cofferdam structure, its characterized in that: including main part cofferdam (1) and Lasen steel sheet pile (2), main part cofferdam (1) set up to plain soil cofferdam, lasen steel sheet pile (2) are vertical to be inserted and to be located main part cofferdam (1) middle part, lasen steel sheet pile (2) are followed the length direction of main part cofferdam (1) sets up, the lower extreme of Lasen steel sheet pile (2) inserts soil horizon (4).
2. A high strength, impervious cofferdam structure as in claim 1, wherein: the top of the main body cofferdam (1) is provided with a working platform (11).
3. A high strength, impervious cofferdam structure as in claim 1, wherein: the two sides of the main cofferdam (1) are provided with soil bag slope protection layers (13).
4. A high strength, impervious cofferdam structure as in claim 3, wherein: a sand layer (12) is arranged between the main cofferdam (1) and the soil bag slope protection layer (13).
5. A high strength, impervious cofferdam structure as in claim 4, wherein: the sand and stone layer (12) is arranged on one side of the main cofferdam (1) close to the water body.
6. A high strength, impervious cofferdam structure as in claim 3, wherein: a steel wire mesh layer (14) is covered on the outer side of the soil bag slope protection layer (13) at one side of the main cofferdam (1) close to the water body.
7. A high strength, impervious cofferdam structure as in claim 1, wherein: and a drainage open ditch (3) is excavated at the bottom of one side of the main cofferdam (1) far away from the water body.
8. A high strength, impervious cofferdam structure as in claim 1, wherein: and the slope rates of the two sides of the main cofferdam (1) are set to be 1:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322619900.1U CN220908437U (en) | 2023-09-26 | 2023-09-26 | High-strength impervious cofferdam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322619900.1U CN220908437U (en) | 2023-09-26 | 2023-09-26 | High-strength impervious cofferdam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220908437U true CN220908437U (en) | 2024-05-07 |
Family
ID=90910188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322619900.1U Active CN220908437U (en) | 2023-09-26 | 2023-09-26 | High-strength impervious cofferdam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220908437U (en) |
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2023
- 2023-09-26 CN CN202322619900.1U patent/CN220908437U/en active Active
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