CN220746952U - Foundation pit support structure - Google Patents
Foundation pit support structure Download PDFInfo
- Publication number
- CN220746952U CN220746952U CN202322506152.6U CN202322506152U CN220746952U CN 220746952 U CN220746952 U CN 220746952U CN 202322506152 U CN202322506152 U CN 202322506152U CN 220746952 U CN220746952 U CN 220746952U
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- foundation pit
- columns
- support
- column
- enclosure
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- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 230000008093 supporting effect Effects 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000002689 soil Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000009412 basement excavation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model discloses a foundation pit support structure, which comprises occlusion columns arranged along the edge of a foundation pit at intervals, support columns arranged between the occlusion columns, and a support structure, wherein the support structure is used for connecting a plurality of support columns to form a whole so as to strengthen the strength of the support columns. The support structure is arranged in the foundation pit and between the occlusion columns, and the strength of the support columns is improved through the support columns, so that the support columns provide better external support for the occlusion columns, and the bearing capacity of the enclosure structure on water pressure and soil pressure generated by excavation unloading of the foundation pit is improved.
Description
Technical Field
The utility model belongs to the technical field of foundation pit support, and particularly relates to a foundation pit support structure.
Background
In the building construction process, a foundation pit is excavated at a foundation design position according to the elevation of a substrate and the plane size of the foundation, before the foundation pit is excavated, an enclosure structure is arranged at a preset excavation position to prevent the edge of the foundation pit from collapsing, the enclosure structure comprises an engagement column and a support column, the engagement column is arranged around the foundation pit, the support column is arranged between the engagement columns, the engagement column bears the water pressure and the soil pressure generated by excavation unloading of the foundation pit and transmits the pressure to the support column, when the support column is deformed due to the too high pressure, the balance relation of the soil weight inside and outside the foundation pit is broken, namely, the phenomenon of soil collapse at two sides of the foundation pit is generated, adjacent roads are seriously sunk and destroyed, the engineering construction progress is endangered, the construction period is influenced and other adverse consequences are influenced, and therefore the utility model provides the foundation pit enclosure structure.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, provide the foundation pit support structure, improve the support strength of the support structure and better cope with the surrounding pressure during the excavation of the foundation pit.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a foundation pit enclosure, comprising: the column is followed the interlock post of foundation ditch border interval setting and is set up the support column between the interlock post, its characterized in that: the support column is integrally formed, so that the strength of the enclosure structure is enhanced.
Further, the support structure comprises a lattice column and channel steel, the channel steel is fixed on the lattice column, the channel steel is provided with a frame-type limiting plate, and the limiting plate is used for limiting the supporting column.
Further, the lattice column is provided with stiffening ribs on the nodes connected with the channel steel to strengthen the connection strength.
Further, reinforcing plates are arranged on two sides of the limiting plate.
Further, the foundation pit further comprises a waterproof curtain, wherein the waterproof curtain is arranged outside the occlusion column.
Further, the top of the waterproof curtain is provided with a retaining wall, the retaining wall surrounds the foundation pit, and the function of a fence is achieved.
Further, a connecting piece is arranged between the support column and the occlusion column.
Further, the connecting piece adopts a crown beam and an enclosing purlin.
Further, the bottom of the foundation pit is provided with a stirring pile so as to strengthen the foundation strength of the bottom of the foundation pit.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
the utility model comprises the occlusion posts which are arranged along the edge of the foundation pit at intervals and the support posts which are arranged between the occlusion posts, still include a support structure, support structure connects a plurality of support columns, forms a whole to strengthen the intensity of support column. The support structure is arranged in the foundation pit and between the occlusion columns, and the strength of the support columns is improved through the support columns, so that the support columns provide better external support for the occlusion columns, and the bearing capacity of the enclosure structure on water pressure and soil pressure generated by excavation unloading of the foundation pit is improved.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a detailed view of the bracket structure of the present utility model;
fig. 3 is a cross-sectional view at A-A in fig. 2.
In the figure, 1-snap posts; 2-supporting columns; 3-enclosing purlin; 4-crown beam; 5-retaining wall; 6-concrete tie beams; 7-a waterproof curtain; 8-stirring piles; 9-a support structure; 10-stiffening ribs; 11-lattice columns; 12-channel steel; 13-limiting plates; 14-reinforcing bars; 15-reinforcing plates; 16-foundation pit.
Detailed Description
As shown in fig. 1 to 3, the foundation pit support structure of the present utility model comprises: the foundation pit 16 is provided with a plurality of meshed columns 1 and supporting columns 2 arranged between the meshed columns 1 at intervals along the edges of the foundation pit 16, and the foundation pit further comprises a supporting structure 9, wherein the supporting structure 9 is used for limiting and fixing the supporting columns 2, and the supporting columns 2 form a whole to strengthen the strength of the enclosure structure. The support structure 9 is arranged in the foundation pit 16 and between the occlusion columns 1, and the strength of the support columns 2 is improved by supporting the support columns 2, so that the support columns 2 provide better external support for the occlusion columns 1.
The support structure 9 comprises a lattice column 11 and channel steel 12, the channel steel 12 is fixed on the lattice column 11, the channel steel 12 is provided with a frame-type limiting plate 13, and the limiting plate 13 is used for limiting the supporting column 2. Triangular reinforcing plates 15 are arranged on two sides of the limiting plate 13. The structure ensures that the support columns 2 are supported by the channel steel 12, and the support columns 2 fixed on the channel steel 12 are positioned at the same elevation, thereby being beneficial to the erection of steel supports with different heights.
The lattice column 11 is provided with stiffening ribs 10 at nodes connected to the channel 12 to strengthen the connection strength with the channel 12. The present utility model provides for the provision of reinforcing bars 14 between the flanges of the channel 12.
The utility model also comprises a waterproof curtain 7, wherein the waterproof curtain 7 is arranged outside the occlusal column 1 around the foundation pit 16. When the foundation pit 16 is placed below the ground water level and drainage is difficult, a continuous water stop body, that is, a water stop curtain 7, is required to prevent or reduce the water from flowing into the foundation pit 16 from the side walls of the foundation pit 16 and the ground water at the bottom of the foundation pit 16.
The top of the waterproof curtain 7 is provided with a retaining wall 5, and the retaining wall 5 surrounds a foundation pit 16 to play a role of a fence. The anti-collision retaining wall 5 can effectively avoid the false break of vehicles or personnel and avoid the loss and injury caused by the false break
A connecting piece is arranged between the support column 2 and the occlusal column 1. The connecting piece adopts a crown beam 4 and an enclosing purlin 3. Crown beam 4 is typically placed on top of the snap post 1 to hold all pile foundations together to prevent collapse of the top edge of foundation pit 16. The support columns 2 connected between the crown beams 4 are also provided with concrete tie beams 6 so as to ensure that the support columns 2 are connected into a whole to bear force. The enclosing purlin 3 is usually arranged at the side part of the occluding column 1, the rigidity of the enclosing purlin 3 has great influence on the rigidity of the whole supporting structure, and the effect of fixing steel supporting effect and transmitting load is achieved.
The stirring piles 8 are arranged at the bottom of the foundation pit 16 to strengthen the connection with the bottom plate. The cement is used as the curing agent to harden the soft soil to improve the foundation strength, so as to strengthen the saturated soft clay foundation, and has obvious effects of improving the bearing capacity of the soft soil foundation, reducing the settlement of the foundation and ensuring the stability of the filled roadbed.
The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.
Claims (9)
1. A foundation pit enclosure, comprising: the foundation pit is characterized by comprising meshing columns and support columns, wherein the meshing columns are arranged along the edge of the foundation pit at intervals, the support columns are arranged between the meshing columns, and the foundation pit is characterized in that: the support column is integrally formed, so that the strength of the enclosure structure is enhanced.
2. The foundation pit enclosure of claim 1, wherein: the support structure comprises a lattice column and channel steel, wherein the channel steel is fixed on the lattice column, the channel steel is provided with a frame-type limiting plate, and the limiting plate is used for limiting the supporting column.
3. The foundation pit enclosure of claim 2, wherein: and the lattice column is provided with stiffening ribs on the nodes connected with the channel steel so as to strengthen the connection strength.
4. The foundation pit enclosure of claim 2, wherein: reinforcing plates are arranged on two sides of the limiting plate.
5. The foundation pit enclosure of claim 1, wherein: the foundation pit is characterized by further comprising a waterproof curtain, wherein the waterproof curtain surrounds the foundation pit and is arranged on the outer side of the occlusion column.
6. The foundation pit enclosure of claim 5, wherein: the top of the waterproof curtain is provided with a retaining wall, and the retaining wall surrounds the foundation pit to play a role of a fence.
7. The foundation pit enclosure of claim 1, wherein: and a connecting piece is arranged between the support column and the occlusion column.
8. The foundation pit enclosure of claim 7, wherein: the connecting piece adopts crown beam and enclosing purlin.
9. The foundation pit enclosure of claim 1, wherein: and stirring piles are arranged at the bottom of the foundation pit so as to strengthen the foundation strength at the bottom of the foundation pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322506152.6U CN220746952U (en) | 2023-09-11 | 2023-09-11 | Foundation pit support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322506152.6U CN220746952U (en) | 2023-09-11 | 2023-09-11 | Foundation pit support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220746952U true CN220746952U (en) | 2024-04-09 |
Family
ID=90559848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322506152.6U Active CN220746952U (en) | 2023-09-11 | 2023-09-11 | Foundation pit support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220746952U (en) |
-
2023
- 2023-09-11 CN CN202322506152.6U patent/CN220746952U/en active Active
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