CN220908416U - Temporary enclosure structure for foundation pit - Google Patents
Temporary enclosure structure for foundation pit Download PDFInfo
- Publication number
- CN220908416U CN220908416U CN202322466336.4U CN202322466336U CN220908416U CN 220908416 U CN220908416 U CN 220908416U CN 202322466336 U CN202322466336 U CN 202322466336U CN 220908416 U CN220908416 U CN 220908416U
- Authority
- CN
- China
- Prior art keywords
- foundation pit
- concrete
- foundation
- layer
- pit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003756 stirring Methods 0.000 claims abstract description 26
- 239000002689 soil Substances 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 2
- 239000004927 clay Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 28
- 239000011241 protective layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 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
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Foundations (AREA)
Abstract
The utility model discloses a temporary enclosure structure of a foundation pit, which comprises stirring piles, wherein the stirring piles are arranged at the joint of the bottom and the side parts of the foundation pit, the concrete of the stirring piles is mixed with soil to form a compact structural layer, and the structural layer supports the bottom of the foundation pit, so that the bottom of the foundation pit is kept on the same plane, and an upper concrete structure is stably built at the bottom of the foundation pit. The junction of the bottom and the side part of the foundation pit is the part which is most easy to collapse, and the stirring pile is arranged, so that the concrete of the stirring pile is mixed with clay to form a compact bottom structure, the soil loosening condition in the foundation pit is improved, the stable construction of the concrete structure in the foundation pit is ensured, and the foundation pit has good practicability.
Description
Technical Field
The utility model belongs to the technical field of foundation pit support, and particularly relates to a temporary foundation pit support structure.
Background
The foundation pit enclosure system is an organism with the mutual interaction of soil and supporting structures, and has higher requirements on the safety of the supporting structures due to the restriction of surrounding buildings, underground pipelines and other factors. The stability of the foundation pit and the safety and convenience of the operation in the pit can be ensured, and the displacement of soil bodies at the pit bottom and outside the pit is controlled within a certain range, so that the normal use of adjacent buildings and municipal facilities is ensured. In the building construction process, the foundation pit is excavated at a foundation design position according to the substrate elevation and the foundation plane size by combining with the condition of a building on site, an enclosure structure is arranged at a preset excavation position before the foundation pit is excavated, collapse of the foundation pit is avoided, the excavated soil conditions are different according to different places in the prior art, after the foundation pit is excavated at a place mainly comprising mucky soil, the foundation pit is soft in soil, the structure is unstable, and the stability of a concrete structure arranged in the foundation pit is reduced.
Disclosure of utility model
The utility model aims to solve the technical problems in the prior art, and provides a temporary enclosure structure for a foundation pit, which forms a compact structural layer, levels the bottom of the foundation pit and provides a stable foundation for the subsequent construction of an upper concrete structure.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model provides a temporary enclosure of foundation ditch, includes the stirring stake, and the setting of stirring stake is in the junction of foundation ditch bottom and lateral part, mixes with soil, forms closely knit structural layer, and structural layer supports foundation ditch bottom for the foundation ditch bottom keeps at the coplanar, in order to make upper portion concrete structure build in the stability of foundation ditch bottom.
Further, the waterproof layer and the reinforcing layer are sequentially arranged on the side part of the foundation pit, so that the waterproof property of the foundation pit is improved, and the shape of the foundation pit is maintained.
Further, the reinforcing layer adopts the interlock post, and the interlock post encircles the lateral part arrangement setting of foundation ditch to consolidate the structural strength of foundation ditch lateral part.
Further, the connecting piece is arranged on the occlusion column, and the support column is fixed on the connecting piece, so that the occlusion column and the support column form an H-shaped stable structure.
Further, the connecting piece adopts a crown beam and an enclosing purlin.
Further, still include the support structure, the support structure includes lattice column and concrete tie beam, and the support column that the concrete tie beam set up side by side is connected, and the lattice column sets up in concrete tie beam below to support the support column.
Further, the occlusion column adopts a construction method pile structure, the construction method pile comprises a concrete column arranged in a soil layer through a stirrer, and H-shaped steel is arranged in the concrete column.
Further, the foundation pit is surrounded by the retaining wall.
Further, the bottom of the foundation pit is also provided with a concrete cushion layer, and the concrete cushion layer is arranged above the stirring pile, so that the surface of the bottom of the foundation pit is smooth, and an upper concrete structure is arranged.
Further, a fine stone concrete protection layer is arranged above the concrete cushion layer, and plays a role in protecting the concrete cushion layer.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
The foundation pit comprises stirring piles, wherein the stirring piles are arranged at the joint of the bottom and the side parts of the foundation pit, concrete and soil of the stirring piles are mixed to form a compact structural layer, and the structural layer supports the bottom of the foundation pit, so that the bottom of the foundation pit is kept on the same plane, and an upper concrete structure is stably built at the bottom of the foundation pit. The junction of the bottom and the side part of the foundation pit is the part which is most easy to collapse, and the stirring pile is arranged, so that the concrete of the stirring pile is mixed with clay to form a compact bottom structure, the soil loosening condition in the foundation pit is improved, the stable construction of the concrete structure in the foundation pit is ensured, and the foundation pit has good practicability.
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 reinforcement diagram of a pile section crown beam in the construction method of the utility model.
In the figure, 1-stirring piles; 2-H-shaped steel; 3-concrete columns; 4-a reinforcing layer; 5-a waterproof layer; 6-supporting columns; 7-retaining walls; 8-an upper concrete structure; 9-crown beam; 10-enclosing purlin; 11-concrete tie beams; 12-lattice columns; 13-fine stone concrete protective layer; 14-a concrete cushion layer; 15-foundation pit.
Detailed Description
As shown in fig. 1 and fig. 2, the temporary enclosure structure for a foundation pit according to the present utility model includes a stirring pile 1, where the stirring pile 1 is disposed at the junction of the bottom and the side of the foundation pit 15, and the concrete and the soil of the stirring pile 1 are mixed to form a compact structural layer, and the structural layer supports the bottom of the foundation pit 15, so that the bottom of the foundation pit 15 is kept on the same plane, and the upper concrete structure 8 is stably built at the bottom of the foundation pit 15. The junction of the bottom and the side of the foundation pit 15 is the most collapse part, and by arranging the stirring pile 1 and mixing the clay with the concrete of the stirring pile 1, a compact bottom structure is formed, the soil loosening condition in the foundation pit 15 is improved, the stable construction of the upper concrete structure 8 in the foundation pit 15 is ensured, and the foundation pit has good practicability.
The waterproof layer 5 and the reinforcement layer 4 are arranged on the side portion of the foundation pit 15 in sequence, the waterproof layer 5 is a waterproof curtain formed by triaxial stirring piles, so that the waterproof performance of the foundation pit 15 is improved, the reinforcement layer 4 is a meshing column, the meshing column is arranged around the side portion of the foundation pit 15, the structural strength of the side portion of the foundation pit 15 is reinforced, and the shape of the foundation pit 15 is maintained.
The engagement column is provided with a connecting piece, and the supporting column 6 is fixed on the connecting piece, so that the engagement column and the supporting column 6 form an H-shaped stable structure. The connecting piece adopts a crown beam 9 and an enclosing purlin 10.
The occlusion column adopts a construction method pile structure, the construction method pile comprises a concrete column 3 which is arranged in a soil layer through a drilling and stirring machine, and H-shaped steel 2 is embedded in the concrete column 3 before the concrete column 3 is not coagulated. H-shaped steel 2 is partially exposed at the top of the concrete column 3, steel bars of the crown beam 9 are placed according to the H-shaped steel 2, then the support columns 6 are connected, and the support columns 6 and the crown beam 9 are connected through concrete casting. The crown beam 9 is an extremity stirrup, improves the shear strength of the inclined section, and is connected with H-shaped steel and concrete in parallel so as to realize the combined action.
The utility model also comprises a support structure, wherein the support structure comprises lattice columns 12 and concrete tie beams 11, the concrete tie beams 11 are connected with the support columns 6 arranged side by side, the lattice columns 12 are arranged below the concrete tie beams 11 to support the support columns 6, and the support strength of the enclosure structure is improved to better cope with the surrounding pressure when the foundation pit 15 is excavated.
The utility model also includes retaining wall 7, retaining wall 7 surrounding foundation pit 15. The anti-collision retaining wall 7 can effectively avoid the false break of vehicles or personnel and avoid the loss and injury caused by the false break
The bottom of the foundation pit 15 is also provided with a concrete cushion layer 14, and the concrete cushion layer 14 is arranged above the stirring pile 1, so that the surface of the bottom of the foundation pit 15 is further promoted to be flat, and the working surface of the foundation pit 15 is hardened, so that the upper concrete structure 8 is arranged.
A fine stone concrete protective layer 13 is arranged above the concrete cushion layer 14, and the steel bars of the upper concrete structure 8 are arranged on the fine stone concrete protective layer 13 to prevent the concrete cushion layer 14 from being damaged.
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 (10)
1. The utility model provides a interim envelope of foundation ditch which characterized in that: including stirring stake, stirring stake sets up the junction of foundation ditch bottom and lateral part, mixes with soil, forms closely knit structural layer, just structural layer supports the foundation ditch bottom, makes the foundation ditch bottom keeps at the coplanar, so that upper portion concrete structure is in the stable construction of foundation ditch bottom.
2. The temporary enclosure for a foundation pit of claim 1, wherein: waterproof layer and reinforcement layer are equipped with in proper order to the foundation ditch lateral part, in order to improve the waterproof nature of foundation ditch maintains the shape of foundation ditch.
3. The temporary enclosure for a foundation pit of claim 2, wherein: the reinforcing layer adopts the interlock post, the interlock post encircles the lateral part arrangement setting of foundation ditch to consolidate the structural strength of foundation ditch lateral part.
4. A temporary pit enclosure according to claim 3, wherein: the occlusion column is provided with a connecting piece, and a support column is fixed on the connecting piece, so that the occlusion column and the support column form an H-shaped stable structure.
5. The temporary retaining structure for a foundation pit of claim 4, wherein: the connecting piece adopts crown beam and enclosing purlin.
6. The temporary retaining structure for a foundation pit of claim 4, wherein: the support structure comprises lattice columns and concrete tie beams, wherein the concrete tie beams are connected with the support columns which are arranged side by side, and the lattice columns are arranged below the concrete tie beams so as to support the support columns.
7. A temporary pit enclosure according to claim 3, wherein: the occlusion column adopts a construction method pile structure, the construction method pile comprises a concrete column arranged in a soil layer through a drilling and stirring machine, and H-shaped steel is arranged in the concrete column.
8. The temporary enclosure for a foundation pit of claim 1, wherein: the foundation pit is characterized by further comprising a retaining wall, wherein the retaining wall surrounds the foundation pit.
9. The temporary enclosure for a foundation pit of claim 1, wherein: the bottom of the foundation pit is also provided with a concrete cushion layer, and the concrete cushion layer is arranged above the stirring pile, so that the surface of the bottom of the foundation pit is smooth, and the upper concrete structure is constructed.
10. The temporary enclosure for a foundation pit of claim 9, wherein: and a fine stone concrete protection layer is arranged above the concrete cushion layer to protect the concrete cushion layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322466336.4U CN220908416U (en) | 2023-09-11 | 2023-09-11 | Temporary enclosure structure for foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322466336.4U CN220908416U (en) | 2023-09-11 | 2023-09-11 | Temporary enclosure structure for foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220908416U true CN220908416U (en) | 2024-05-07 |
Family
ID=90908505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322466336.4U Active CN220908416U (en) | 2023-09-11 | 2023-09-11 | Temporary enclosure structure for foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220908416U (en) |
-
2023
- 2023-09-11 CN CN202322466336.4U patent/CN220908416U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107313431B (en) | Close on not contour foundation pit method for synchronously constructing | |
| CN101914925A (en) | Basement by using optimized composite prefabricated arch wall as external wall | |
| CN101418569B (en) | Optimization complex arch wall combining prefabricated arch leaf, support and major structure | |
| CN104594361B (en) | A kind of I shape fender post and building enclosure also serve as the construction method of agent structure | |
| CN206706772U (en) | A kind of double steel sheet pile supporting construction | |
| CN205975658U (en) | Steel platform tower crane foundation | |
| CN105064401A (en) | Method for excavating and constructing large-area basement | |
| CN212200464U (en) | Large prefabricated lattice beam structure for slope reinforcement | |
| CN104131571A (en) | Deep foundation pit support construction method | |
| CN108951654B (en) | Support construction method for basements with different excavation depths | |
| JP2000352296A (en) | Method o constructing passage just under underground structure | |
| CN108035360A (en) | A kind of method for pattern foundation pit supporting structure | |
| CN220908416U (en) | Temporary enclosure structure for foundation pit | |
| CN103882883A (en) | Method for constructing foundation shared by tower crane and garage frame column | |
| CN206667263U (en) | A kind of foundation pit supporting construction | |
| CN216586567U (en) | Pit-in-pit miniature pile supporting structure | |
| CN206768831U (en) | Support, anchor cable post-tensioning HU type building enclosures before a kind of steel pipe | |
| CN211690389U (en) | Inter-pile retaining plate structure for adjacent anti-slide piles | |
| JP3676441B2 (en) | Pit and construction method of basement using it | |
| CN205605215U (en) | Big section loess tunnel is grooving method construction structures in advance | |
| CN211285629U (en) | A envelope for closing on reinforced (rfd) of foundation ditch excavation soil body of pile foundation | |
| CN108005086A (en) | A kind of high buttress counter pull type inclined support structure for pattern foundation pit supporting structure | |
| CN209555962U (en) | One kind being suitable for III class stake of cast-in-situ bored pile and cushion cap connection structure | |
| CN201991015U (en) | Foundation underpinning structure | |
| CN213417846U (en) | Foundation pit supporting structure adjacent to high-speed rail |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |