CN215215038U - High-strength hollow pipe curtain structure - Google Patents
High-strength hollow pipe curtain structure Download PDFInfo
- Publication number
- CN215215038U CN215215038U CN202121375142.8U CN202121375142U CN215215038U CN 215215038 U CN215215038 U CN 215215038U CN 202121375142 U CN202121375142 U CN 202121375142U CN 215215038 U CN215215038 U CN 215215038U
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- pipe
- ring
- tube
- wall
- supporting
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Abstract
The utility model discloses a high-strength hollow tube curtain structure, which comprises an outer tube and an inner tube, wherein a plurality of supporting pieces are arranged at intervals between the outer tube and the inner tube, each supporting piece comprises an outer ring contacted with the inner wall of the outer tube and an inner ring contacted with the outer wall of the inner tube, and a connecting piece for connecting the outer ring and the inner ring is arranged between the outer ring and the inner ring; the supporting pieces are sleeved on the outer wall of the inner pipe at intervals during assembly, and then integrally and coaxially sleeved in the outer pipe, and concrete is poured between the outer pipe and the inner pipe to wrap the supporting pieces to form a hollow pipe curtain. The utility model has large integral rigidity, high strength and small overall weight, and is beneficial to reducing the vertical settlement of the pipe curtain; the assembly construction between the supporting piece and the inner pipe and between the supporting piece and the outer pipe is simple.
Description
The technical field is as follows:
the utility model relates to an underground space construction technical field particularly, relates to a high strength hollow tube curtain structure.
Background art:
the pipe curtain construction method is a common underground construction method, belongs to shallow-buried underground excavation construction, has very little influence on ground traffic and urban environment, can obviously reduce ground settlement, and is widely applied to underground space engineering as a non-excavation technology for traversing roads, railways, structures, airports and the like.
The traditional pipe curtain structure is formed by filling concrete in a steel pipe, and the rigidity of the traditional pipe curtain structure is formed by the steel pipe and the concrete together, as shown in figure 1. When the box culvert positioned inside the pipe curtain is jacked and excavated, the position of the pipe curtain structure where the maximum vertical settlement occurs is often positioned in the middle steel pipe of the top row. When the length of the pipe curtain structure is large (for example, larger than 100m), the integral self weight of the steel pipe and the internal concrete is large, so that the deformation of the steel pipe in the middle of the top row of the pipe curtain is too large.
Therefore, how to reduce the dead weight of the key part of the pipe curtain structure and improve the strength and the rigidity of the pipe curtain structure so as to reduce the vertical settlement of the steel pipe and ensure the safe and reliable jacking construction of the box culvert is a technical problem worthy of discussion.
The utility model has the following contents:
in order to compensate prior art's defect, the utility model aims at providing a high strength hollow tube curtain structure, it comprises inner tube and outer tube, packs the concrete between inner tube and outer tube, and whole weight is less and rigidity is great, reaches the purpose that reduces the vertical settlement of tube curtain structure.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
a high strength hollow tube curtain structure which characterized in that: the device comprises an outer pipe and an inner pipe, wherein a plurality of supporting pieces are arranged at intervals between the outer pipe and the inner pipe, each supporting piece comprises an outer ring in contact with the inner wall of the outer pipe and an inner ring in contact with the outer wall of the inner pipe, and a connecting piece for connecting the outer ring and the inner ring is arranged between the outer ring and the inner ring;
the supporting pieces are sleeved on the outer wall of the inner pipe at intervals during assembly, and then are integrally sleeved in the outer pipe in a coaxial mode, and concrete is poured between the outer pipe and the inner pipe to wrap the supporting pieces to form a hollow pipe curtain.
The high-strength hollow tube curtain structure is characterized in that: the outer ring of the supporting piece is an outer steel ring, the inner ring is an inner steel ring, the connecting piece is composed of a plurality of fan-shaped steel plates, and the fan-shaped steel plates are arranged at intervals along the gap between the outer ring and the inner ring and are welded and fixed.
The high-strength hollow tube curtain structure is characterized in that: the radian sum of all the fan-shaped steel plates on the supporting piece is not more than 180 degrees, and the small end and the large end of each fan-shaped steel plate are respectively fixed with the outer wall of the inner ring and the inner wall of the outer ring.
The high-strength hollow tube curtain structure is characterized in that: the supporting pieces are uniformly and symmetrically welded on the outer wall of the inner pipe.
The utility model has the advantages that:
1. the rigidity of the hollow tube curtain of the utility model is composed of the outer tube, the inner tube and the concrete between the inner tube and the outer tube, the whole rigidity is large, and the strength is high;
2. when the box culvert of the utility model is pushed in, the inner pipe keeps hollow, the total weight of the pipe curtain is small, which is beneficial to reducing the vertical settlement of the pipe curtain;
3. the pipe curtain formed by the inner and outer pipe structures of the utility model is only used in key parts, such as the middle part of the top row, and the other parts still use the traditional steel pipe structure, thus having limited influence on the total engineering cost;
4. the utility model discloses support piece independently makes and processes, and production is convenient, and the equipment construction between support piece and inner tube, the outer tube is simple and convenient.
Description of the drawings:
FIG. 1 is a sectional view of a conventional tube sheet structural steel tube.
Fig. 2 is a sectional view of the hollow tube curtain structure steel tube of the present invention.
Fig. 3 is a three-dimensional schematic view of the supporting member of the present invention.
Fig. 4 is a front view of the supporting member of the present invention.
Fig. 5 is a schematic view of the supporting member of the present invention being inserted into the inner tube.
Fig. 6 is a schematic view of the assembly of the inner tube and the outer tube of the present invention.
Fig. 7 is a schematic view of the arrangement of the hollow tube curtain structure of the present invention.
Description of reference numerals: 1. concrete; 2. a steel pipe; 3. an outer tube; 4. an inner tube; 5. a support member; 5-1, exo-ring; 52. an inner ring; 5-3, connecting pieces; 6. and (6) box culvert construction.
The specific implementation mode is as follows:
the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention:
a high-strength hollow pipe curtain structure comprises an outer pipe 3 and an inner pipe 4, wherein a plurality of supporting pieces 5 arranged at intervals are arranged between the outer pipe 3 and the inner pipe 4, each supporting piece 5 comprises an outer ring 5-1 contacted with the inner wall of the outer pipe and an inner ring 5-2 contacted with the outer wall of the inner pipe, and a connecting piece 5-3 for connecting the outer ring 5-1 and the inner ring 5-2 is arranged between the two rings;
the supporting pieces 5 are sleeved on the outer wall of the inner pipe 4 at intervals during assembly, and then integrally and coaxially sleeved in the outer pipe 3, and concrete is poured between the outer pipe 3 and the inner pipe 4 to wrap the supporting pieces 5 to form a hollow pipe curtain.
An outer ring 5-1 of the supporting piece 5 is an outer steel ring, an inner ring 5-2 of the supporting piece 5 is an inner steel ring, the connecting piece 5-3 is composed of a plurality of fan-shaped steel plates, and the fan-shaped steel plates are arranged at intervals along a gap between the outer ring 5-1 and the inner ring 5-2 and are welded and fixed.
During actual manufacturing, the inner diameter of the inner ring 5-2 of the supporting piece 5 is slightly larger than the outer diameter of the inner pipe 4, and the outer diameter of the outer ring 5-1 is slightly smaller than the inner diameter of the outer pipe 3, so that the supporting piece 5 can be sleeved on the outer surface of the inner pipe 4.
The sum of the radians of all the fan-shaped steel plates on the supporting piece 5 is not more than 180 degrees, so that when concrete 1 is poured between the outer pipe 3 and the inner pipe 4 in the following process, the concrete can flow and pass through the supporting piece 5 to fill the whole space, and the small end and the large end of each fan-shaped steel plate are respectively fixed with the outer wall of the inner ring and the inner wall of the outer ring.
The even, symmetrical welding of a plurality of support piece 5 is on the outer wall of inner tube 4, and the inner tube 4 of being convenient for is based on support piece 5 walking and passing through in outer tube 3 is inside, and the atress stability behind the constitution hollow tube curtain is good, is difficult for taking place local deformation.
In particular, the construction cost of the hollow tube curtain structure composed of the outer tube 3, the inner tube 4 and the supporting member 5 is increased compared with the conventional tube curtain structure, and thus, the hollow tube curtain structure is only used at key positions. For example, the steel pipes in the middle of the top row are usually deformed most, a plurality of hollow double-layer steel pipe structures can be uniformly and symmetrically used at the position, and the traditional steel pipe structure is still used at other positions, as shown in fig. 7. The method greatly reduces the deformation of key parts, improves the safety of the pipe curtain structure, has limited influence on the total cost and has higher cost performance.
And after the subsequent jacking construction of the box culvert 6 is in place and the box culvert 6 is effectively contacted with the pipe curtain structure, filling concrete 1 in the inner pipe 4 to protect the inner pipe 4.
Only show partial shape and partial connected mode of hollow tube curtain structure in the drawing, according to the thinking that puts forward, can change the connected mode of outer tube, inner tube, or change the shape of inner tube, form the hollow tube curtain structure of other relevant types, it all belongs to the utility model discloses an equivalent modification and change, no longer give consideration to here again.
The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing the positional relationship in the drawings are for illustrative purposes only and are not to be construed as limiting the present invention.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and the conventional means in the field, without departing from the basic utility model idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (4)
1. A high strength hollow tube curtain structure which characterized in that: the device comprises an outer pipe and an inner pipe, wherein a plurality of supporting pieces are arranged at intervals between the outer pipe and the inner pipe, each supporting piece comprises an outer ring in contact with the inner wall of the outer pipe and an inner ring in contact with the outer wall of the inner pipe, and a connecting piece for connecting the outer ring and the inner ring is arranged between the outer ring and the inner ring;
the supporting pieces are sleeved on the outer wall of the inner pipe at intervals during assembly, and then are integrally sleeved in the outer pipe in a coaxial mode, and concrete is poured between the outer pipe and the inner pipe to wrap the supporting pieces to form a hollow pipe curtain.
2. The high strength hollow tubular screen structure of claim 1, wherein: the outer ring of the supporting piece is an outer steel ring, the inner ring is an inner steel ring, the connecting piece is composed of a plurality of fan-shaped steel plates, and the fan-shaped steel plates are arranged at intervals along the gap between the outer ring and the inner ring and are welded and fixed.
3. The high strength hollow tubular screen structure of claim 2, wherein: the radian sum of all the fan-shaped steel plates on the supporting piece is not more than 180 degrees, and the small end and the large end of each fan-shaped steel plate are respectively fixed with the outer wall of the inner ring and the inner wall of the outer ring.
4. The high strength hollow tubular screen structure of claim 1, wherein: the supporting pieces are uniformly and symmetrically welded on the outer wall of the inner pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121375142.8U CN215215038U (en) | 2021-06-21 | 2021-06-21 | High-strength hollow pipe curtain structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121375142.8U CN215215038U (en) | 2021-06-21 | 2021-06-21 | High-strength hollow pipe curtain structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215215038U true CN215215038U (en) | 2021-12-17 |
Family
ID=79433853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121375142.8U Expired - Fee Related CN215215038U (en) | 2021-06-21 | 2021-06-21 | High-strength hollow pipe curtain structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215215038U (en) |
-
2021
- 2021-06-21 CN CN202121375142.8U patent/CN215215038U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211217 |