CN219710327U - Supporting end of foundation pit steel support - Google Patents
Supporting end of foundation pit steel support Download PDFInfo
- Publication number
- CN219710327U CN219710327U CN202320989837.8U CN202320989837U CN219710327U CN 219710327 U CN219710327 U CN 219710327U CN 202320989837 U CN202320989837 U CN 202320989837U CN 219710327 U CN219710327 U CN 219710327U
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- Prior art keywords
- foundation pit
- steel support
- support
- pit steel
- head
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 70
- 239000010959 steel Substances 0.000 title claims abstract description 70
- 230000006835 compression Effects 0.000 claims description 27
- 238000007906 compression Methods 0.000 claims description 27
- 230000002265 prevention Effects 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Foundations (AREA)
Abstract
The utility model relates to a supporting end of a foundation pit steel support, which comprises the following components: and a foundation pit steel support. The foundation pit enclosure is internally provided with at least one embedded part; at least one movable head, one end of the movable head is connected with the embedded part, and the other end is provided with a limit part; the end head body is connected with the foundation pit steel support on one side, and a sliding cavity in sliding fit with the movable head is arranged on the other side of the end head body; the end body is also provided with a tensile fit part and a compressive fit part, the compressive fit part is close to the foundation pit steel support, and the tensile fit part is far away from the foundation pit steel support; at least one wedge. The movable head is connected in the sliding cavity of the end head body in a sliding way, after prestress is applied to jack the foundation pit steel support and the foundation pit enclosure, wedge blocks are filled in gaps between the tensile matching parts and the limiting parts, and therefore the foundation pit steel support has the tensile effect. The utility model expands the use scene of the foundation pit steel support, does not need to change the structure of the foundation pit steel support, and has simple operation and convenient construction.
Description
Technical Field
The utility model relates to the technical field of foundation pit steel supports, in particular to a support end of a foundation pit steel support.
Background
To reduce the impact on surrounding structures, foundation pit bracing has been increasingly frequently designed with internal bracing. In the past, reinforced concrete forms are generally adopted for the inner support, and when the steel support is used more and more, the steel support system is concise in form and definite in stress, the deformation of the foundation pit can be adjusted, and the steel support is simpler and more convenient to manufacture, transport and construct, so that the novel deep foundation pit support technology is pollution-free, reusable, environment-friendly and convenient for earth excavation.
The existing steel support system has the problem that only compression resistance and tension resistance are realized, namely, the inward deformation of the foundation pit can be regulated and controlled, and the outward deformation of the foundation pit can not be regulated and controlled. Although the foundation pit is basically deformed inwards, the foundation pit is not deformed outwards due to nonresistible factors and the like, and the scheme is adopted in order to avoid potential safety hazards caused by outwards deformation of the foundation pit.
Disclosure of Invention
The utility model aims to provide a supporting end of a foundation pit steel support, which can enable the foundation pit steel support to have tensile properties, ensure that the foundation pit steel support can work normally when the foundation pit is deformed outwards, and can be used as a standard component independently of a foundation pit steel support structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a support end of foundation pit steel support for connect foundation pit steel support and foundation pit enclosure, include:
the end head body is connected with the foundation pit steel support at one side and provided with a sliding cavity at the other side; the sliding cavity is provided with a compression fit part at one end close to the steel support of the connecting foundation pit, and a tensile fit part at one end far away from the steel support of the connecting foundation pit;
one end of the movable head is connected with the foundation pit support, and the other end of the movable head is provided with a limiting part;
at least one wedge block, when the foundation pit steel support needs to be stretched, the wedge block is filled between the limiting part and the stretching-resistant matching part; when the foundation pit steel support needs to resist compression, the wedge blocks are filled between the limiting parts and the compression-resistant matching parts; when the foundation pit steel support needs compression resistance and tensile resistance simultaneously, the wedge blocks are filled between the limiting part and the tensile matching part and between the limiting part and the compression matching part.
Preferably, the movable head comprises a connecting plate and two sliding plates, and the connecting plate is connected with the embedded part; the two sliding plates are parallel to each other and are arranged at intervals, and the sliding plates are fixed on the connecting plate; the limiting parts are arranged at the end parts of the sliding plates, far away from the connecting plates, and the limiting parts on the two sliding plates are arranged in opposite directions.
Preferably, a falling-preventing piece for preventing the wedge from falling is further arranged in the sliding cavity.
Preferably, the falling prevention piece is a plate which is vertically arranged; and the wedge block is provided with a limit groove matched with the falling prevention piece.
Preferably, the wedge is U-shaped.
Preferably, the wedge blocks are divided into compression-resistant wedge blocks and tension-resistant wedge blocks, and the compression-resistant wedge blocks are spanned on the falling prevention pieces; the tensile wedge blocks are simultaneously arranged on the falling prevention part and the movable head in a crossing mode.
Preferably, the sliding cavities are arranged in one-to-one correspondence with the movable heads, and the sliding cavities are mutually independent.
Preferably, a reinforcing member is arranged between every two adjacent sliding cavities.
After the scheme is adopted, the movable head is slidably connected in the sliding cavity of the end head body, and after prestress is applied to jack the foundation pit steel support and the foundation pit enclosure, wedge blocks are filled in gaps between the tensile matching parts and the limiting parts, so that the foundation pit steel support has a tensile effect. The utility model can determine the filling position of the wedge block according to the actual situation, thereby determining whether the foundation pit steel support resists compression or tensile, or both, and ensuring that the foundation pit steel support can work normally and stably. The utility model expands the use scene of the foundation pit steel support, does not need to change the structure of the foundation pit steel support, and has simple operation and convenient construction. The supporting end is independent of the foundation pit steel supporting structure and can be used as a standard component.
Drawings
Fig. 1 is a schematic view of the installation of the present utility model.
Fig. 2 is a schematic view of an installation of another view of the present utility model.
FIG. 3 is a schematic diagram of the present utility model.
Fig. 4 is a schematic view of a movable head.
Fig. 5 is a schematic diagram of the connection of the movable head and the head body.
Marking:
a concrete beam 10, an embedded part 11;
foundation pit steel supports 20;
the movable head 30, the connecting plate 31, the sliding plate 32 and the limiting part 33;
the end body 40, the sliding cavity 41, the compression fit part 42, the tensile fit part 43, the falling prevention piece 44 and the reinforcement piece 45;
compression wedge 51, tension wedge 52.
Detailed Description
As shown in fig. 1-5, the present utility model discloses a support end of a foundation pit steel support, which comprises: the end head body 40, three sets of movable heads 30 and at least one wedge block.
The concrete beam 10 of the foundation pit enclosure is provided with an embedded part 11, and the movable head 30 is welded and fixed on an exposed plate of the embedded part 11.
The movable head 30 comprises a connecting plate 31 and two sliding plates 32, and the connecting plate 31 is connected with the embedded part 11. The two sliding plates 32 are arranged in parallel and at intervals, and the sliding plates 32 are fixed on the connecting plate 31 by welding. The end parts of the two sliding plates 32 far away from the connecting plate 31 are provided with limiting parts 33, and the limiting parts 33 on the two sliding plates 32 are arranged in opposite directions.
One side of the end head body 40 is connected with the foundation pit steel support 20 through bolts, the other side is provided with sliding cavities 41 which are in one-to-one correspondence with the movable heads 30 and are in sliding fit, and the three sliding cavities 41 are mutually independent and avoid interference. The sliding cavity 41 is formed by enclosing steel plates, the sliding direction of the movable head 30 can be guaranteed to be consistent by the sliding cavity 41, meanwhile, the movable head 30 is limited, in addition, foreign objects can be prevented from interfering with wedge blocks to a certain extent by the sliding cavity 41, and the anti-falling effect is achieved on the wedge blocks. In order to ensure the stability of the sliding cavities 41, reinforcing members 45 are arranged between every two adjacent sliding cavities 41, and the reinforcing members 45 are abutted against steel plates surrounding the sliding cavities 41.
The end body 40 is further provided with a tensile fit portion 43 and a compressive fit portion 42, wherein the compressive fit portion 42 is arranged close to the foundation pit steel support 20, the compressive fit portion 42 is a whole steel plate, and all the movable heads 30 share the compressive fit portion 42. The tensile matching parts 43 are arranged far away from the foundation pit steel support 20, the tensile matching parts 43 are correspondingly arranged in the sliding cavities 41, and the tensile matching parts 43 cannot interfere the movable head 30 to slide in the sliding cavities 41. A drop preventing member 44 is further provided in the slide chamber 41, the drop preventing member 44 is a steel plate vertically arranged, and the drop preventing member 44 is disposed between the two slide plates 32, so that the drop preventing member 44 can prevent deformation of the slide plates 32 to some extent.
The wedge block is in a U-shaped design, and the symmetrical design is not easy to deflect. The middle recess of the U-shaped wedge is a limiting groove, and the limiting groove is matched with the falling prevention piece 44 to prevent the wedge from falling. The wedges can be divided into compression and tension wedges 51, 52, wherein the compression wedge 51 straddles the drop guard 44 and the tension wedge 52 straddles both the drop guard 44 and the slide 32.
After the prestressing force is applied, when the foundation pit steel support 20 needs to be stretched, the stretching wedge 52 is filled between the limiting part 33 and the stretching matching part 43; when the foundation pit steel support 20 needs to resist compression, the compression wedge 51 is filled between the limiting part 33 and the compression matching part 42; when the foundation pit steel support 20 requires both compression and tension, the tension wedge 52 is filled between the limit portion 33 and the tension mating portion 43, and the compression wedge 51 is also filled between the limit portion 33 and the compression mating portion 42. The wedges may be provided in several numbers and at the same time may be provided in different thicknesses for filling.
The key point of the utility model is that the loose head 30 is slidingly connected in the sliding cavity 41 of the end head body 40, after prestressing force is applied to jack the foundation pit steel support 20 and the foundation pit enclosure, wedge blocks are filled in the gap between the tensile matching part 43 and the limiting part 33, so that the foundation pit steel support 20 has the tensile effect. The utility model can determine the filling position of the wedge block according to the actual situation, thereby determining whether the foundation pit steel support 20 resists compression or tensile, or both, and ensuring that the foundation pit steel support 20 can work normally and stably. The utility model expands the use scene of the foundation pit steel support 20, does not need to change the structure of the foundation pit steel support 20, and has simple operation and convenient construction. And the support ends are independent of the foundation pit steel support 20 structure and can be used as standard components.
The foregoing embodiments of the present utility model are not intended to limit the technical scope of the present utility model, and therefore, any minor modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical proposal of the present utility model.
Claims (8)
1. A support end of foundation ditch steel support for connect foundation ditch steel support and foundation ditch enclosure, its characterized in that includes:
the end head body is connected with the foundation pit steel support at one side and provided with a sliding cavity at the other side; the sliding cavity is provided with a compression fit part at one end close to the steel support of the connecting foundation pit, and a tensile fit part at one end far away from the steel support of the connecting foundation pit;
one end of the movable head is connected with the foundation pit support, and the other end of the movable head is provided with a limiting part;
at least one wedge block, when the foundation pit steel support needs to be stretched, the wedge block is filled between the limiting part and the stretching-resistant matching part; when the foundation pit steel support needs to resist compression, the wedge blocks are filled between the limiting parts and the compression-resistant matching parts; when the foundation pit steel support needs compression resistance and tensile resistance simultaneously, the wedge blocks are filled between the limiting part and the tensile matching part and between the limiting part and the compression matching part.
2. The support head of a foundation pit steel support of claim 1, wherein: the movable head comprises a connecting plate and two sliding plates, and the connecting plate is connected with the embedded part; the two sliding plates are parallel to each other and are arranged at intervals, and the sliding plates are fixed on the connecting plate; the limiting parts are arranged at the end parts of the sliding plates, far away from the connecting plates, and the limiting parts on the two sliding plates are arranged in opposite directions.
3. The support head of a foundation pit steel support of claim 1, wherein: and the sliding cavity is also provided with a falling-preventing piece for preventing the wedge block from falling.
4. A support head for a foundation pit steel support according to claim 3, wherein: the falling prevention piece is a vertically arranged plate; and the wedge block is provided with a limit groove matched with the falling prevention piece.
5. The support head of a foundation pit steel support of claim 4, wherein: the wedge block is U-shaped.
6. A support head for a foundation pit steel support according to claim 4 or 5, wherein: the wedge blocks are divided into compression-resistant wedge blocks and tensile wedge blocks, and the compression-resistant wedge blocks are arranged on the falling prevention pieces in a crossing mode; the tensile wedge blocks are simultaneously arranged on the falling prevention part and the movable head in a crossing mode.
7. The support head of a foundation pit steel support of claim 1, wherein: the sliding cavities are arranged in one-to-one correspondence with the movable heads, and are mutually independent.
8. The support head of a foundation pit steel support of claim 7, wherein: and a reinforcing piece is arranged between every two adjacent sliding cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320989837.8U CN219710327U (en) | 2023-04-27 | 2023-04-27 | Supporting end of foundation pit steel support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320989837.8U CN219710327U (en) | 2023-04-27 | 2023-04-27 | Supporting end of foundation pit steel support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219710327U true CN219710327U (en) | 2023-09-19 |
Family
ID=87982500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320989837.8U Active CN219710327U (en) | 2023-04-27 | 2023-04-27 | Supporting end of foundation pit steel support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219710327U (en) |
-
2023
- 2023-04-27 CN CN202320989837.8U patent/CN219710327U/en active Active
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