CN216894438U - Support for assisting shield launching - Google Patents
Support for assisting shield launching Download PDFInfo
- Publication number
- CN216894438U CN216894438U CN202220631417.8U CN202220631417U CN216894438U CN 216894438 U CN216894438 U CN 216894438U CN 202220631417 U CN202220631417 U CN 202220631417U CN 216894438 U CN216894438 U CN 216894438U
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- Prior art keywords
- steel
- upright
- support
- plate
- assisting
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 118
- 239000010959 steel Substances 0.000 claims abstract description 118
- 230000000977 initiatory effect Effects 0.000 claims description 11
- 238000010276 construction Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a support for assisting shield launching, which comprises a steel upright, wherein a steel upright foot is arranged at the bottom end of the steel upright, a first steel cross beam is arranged at the top of the steel upright, and a plurality of supporting bolts are arranged at the top of the first steel cross beam; the top of the supporting bolt is provided with a second steel beam, the top of the second steel beam is provided with a plurality of channel steel, and the top of the channel steel is provided with a square timber beam. By adopting the 7-shaped semi-portal, the design of a steel upright is cancelled, and the side wall embedded steel plate is connected with the cross beam, so that the problem that the steel upright at the side wall of China in the prior art cannot meet the placing problem of a shield machine connecting bridge and a rear matched trolley No. 1 is solved.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a support for assisting shield starting.
Background
At present, in the process of building underground subway stations, underground two-layer subway stations mainly comprise a bottom plate, a middle plate and a top plate. Need use red scaffold in full hall to support the median plate when pouring the medium plate. After the construction of the middle plate and the top plate of the station is completed, the shield machine can be used for carrying out tunnel excavation work on the underground.
Patent number CN202020885225.0 discloses a portal frame for shield starting, including portal frame unit, the spread groove, connecting rod and regulating part, portal frame unit is formed by two stands and the mutual rigid coupling of a crossbeam, and the regulating part can slidable mounting respectively on the stand, only installs a regulating part on per two adjacent stands of portal frame length direction, and the lower extreme of connecting rod can demountable installation on the stand that does not have the regulating part, and it has easy dismounting, can effectively shorten construction cycle's characteristics.
However, the above-described stent has the following drawbacks: the whole portal frame is required to complete a 120m station structure of a shield initiating end when in use, but in reality, the construction period is delayed due to various factors, and the 120m structure cannot be completed, so that initiating conditions cannot be provided, and in addition, when a curve of the shield machine is initiated, a 300 x 900 axillary angle exists in an initiating end well, so that a steel upright column cannot be installed at a side wall, and initiating requirements cannot be met.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the related art, the present invention provides a support for assisting shield launching, so as to overcome the above technical problems in the related art.
Therefore, the utility model adopts the following specific technical scheme:
a support for assisting shield starting comprises a steel upright, wherein a steel upright foot is arranged at the bottom end of the steel upright, a first steel cross beam is arranged at the top of the steel upright, and a plurality of supporting bolts are arranged at the top of the first steel cross beam; the top of the supporting bolt is provided with a second steel beam, the top of the second steel beam is provided with a plurality of channel steel, and the top of the channel steel is provided with a square timber beam.
Further, in order to keep the strength of the steel stand column while reducing the weight of the steel stand column, the steel stand column and the first steel beam are composed of two groups of symmetrically arranged branches, two sides of the two groups of branches are connected through a plurality of gusset plates, and the surfaces of the branches are provided with a plurality of longitudinal connection steel beams. The steel stand foot is provided with a plurality of first stiffening ribs including installing in the steel sheet of dividing the limb bottom, the top of steel sheet and being located the bottom outside of dividing the limb.
Further, in order to effectively improve the stability of the steel stand column, two groups of brackets are symmetrically arranged at the bottom of the end, away from the steel stand column, of the first steel beam, a supporting plate is arranged between the tops of the two groups of brackets, second stiffening ribs matched with the first steel beam are arranged on two sides of the top of the supporting plate, and embedded steel plates are arranged between one sides of the two groups of brackets. The top end of the top supporting bolt is connected with the second steel cross beam, and the bottom end of the top supporting bolt is connected with the first steel cross beam through a base plate.
The utility model has the beneficial effects that: by adopting the 7-shaped semi-portal, the design of a steel upright is cancelled, and the side wall embedded steel plate is connected with the cross beam, so that the problem that the steel upright at the side wall of China in the prior art cannot meet the placing problem of a shield machine connecting bridge and a rear matched trolley No. 1 is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a support for assisting shield initiation according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a steel column in a support for assisting shield initiation according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a steel column shoe in a support for assisting shield initiation according to an embodiment of the present invention;
FIG. 4 is a side view of a bracket in a bracket for assisting shield launch according to an embodiment of the present invention;
fig. 5 is a front view of a bracket in a bracket for assisting shield initiation according to an embodiment of the present invention.
In the figure:
1. a steel upright post; 2. a steel column foot; 3. a first steel cross beam; 4. supporting a top bolt; 5. a second steel beam; 6. channel steel; 7. a square timber beam; 8. separating limbs; 9. a batten plate; 10. connecting the steel beams longitudinally; 11. a steel plate; 12. a first stiffener; 13. a bracket; 14. a support plate; 15. pre-burying a steel plate; 16. a base plate; 17. a second stiffener.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to an embodiment of the present invention, a support for assisting shield initiation is provided.
Referring to the drawings and the detailed description, as shown in fig. 1-5, a support for assisting shield starting according to an embodiment of the present invention includes a steel upright 1, a steel upright foot 2 is disposed at a bottom end of the steel upright 1, a first steel cross beam 3 is disposed at a top of the steel upright 1, and a plurality of supporting bolts 4 are disposed at a top of the first steel cross beam 3; the top of the supporting bolt 4 is provided with a second steel beam 5, the top of the second steel beam 5 is provided with a plurality of channel steel 6, the top of the channel steel 6 is provided with a square beam 7, and when the support is specifically applied, the support is a 7-shaped semi-portal frame made of Q235 steel, the steel upright posts 1 are made of double-spliced 22 a-shaped channel steel and 100 x 170 x 10 batten plates, the first steel beam 3 is made of double-spliced 36b channel steel and 100 x 180 x 10 batten plates, the internal clearance is 5980mm in width and 5320mm in height.
By means of the technical scheme, the 7-shaped semi-portal frame is adopted, the design of the steel upright column is cancelled, the side wall embedded steel plate is connected with the cross beam, the problem that the steel upright column at the side wall position in China in the prior art cannot meet the placing problem of a connecting bridge of the shield tunneling machine and a rear matched trolley No. 1 is solved, compared with the existing full-portal frame design, the curve starting requirement of the shield tunneling machine can be met, and the technical problem that the shield tunneling machine can be started when the middle plate structure in a station is not finished is solved.
In one embodiment, the steel upright 1 and the first steel beam 3 are composed of two symmetrically arranged branches 8, two sides of the two branches 8 are connected through a plurality of gusset plates 9, and a plurality of longitudinal connection steel beams 10 are arranged on the surfaces of the branches 8, so that the strength of the steel upright 1 can be maintained while the weight of the steel upright 1 is reduced.
In one embodiment, the steel column foot 2 comprises a steel plate 11 installed at the bottom end of the branch 8, and a plurality of first stiffening ribs 12 are arranged at the top of the steel plate 11 and outside the bottom of the branch 8, so that the stability of the steel column 1 can be effectively improved.
In one embodiment, two groups of brackets 13 are symmetrically arranged at the bottom of one end, away from the steel upright 1, of the first steel beam 3, a supporting plate 14 is arranged between the tops of the two groups of brackets 13, second stiffening ribs 17 matched with the first steel beam 3 are arranged on two sides of the top of the supporting plate 14, and a pre-embedded steel plate 15 is arranged between one sides of the two groups of brackets 13, so that the installation stability of the first steel beam 3 can be effectively guaranteed.
In one embodiment, the top end of the supporting bolt 4 is connected with the second steel beam 5, the bottom end of the supporting bolt 4 is connected with the first steel beam 3 through the base plate 16, when the device is used specifically, four supporting bolts are placed above each half portal frame at an interval of 1.8m, and each supporting bolt 4 is composed of a 10mm gasket, an adjustable tray and a screw rod. The total calculation height is 360mm, and the tray can be adjusted length on solid screw rod for 100mm, waits the template to lay and accomplishes the back, adjusts the top bolt height, guarantees the template roughness.
For the convenience of understanding the above technical solutions of the present invention, the following detailed description will be made about the construction points of the present invention in the practical process.
1) When the side wall is constructed, pre-burying 550mm 20mm steel plates on the side wall; burying the center at height 5.595m, and performing proper encryption at the reentrant corner position of the end well at the position of the plane at intervals of 2.4 m.
2) And welding the bracket 13 on the steel plate on the embedded side wall, detecting a welding test after welding, and performing the next procedure after detection is qualified.
3) The corbel 13 will provide support for the main beam (first steel beam 3). The 7-shaped portal frame is assembled on the ground and hoisted by a 25t truck crane.
4) After the steel upright is hoisted in place, the section 1 of the steel upright is fixed on the bottom plate by using a phi 20mm expansion bolt, and the main beam cantilever of the section 1 of the non-steel upright is welded on the bracket 13.
5) After the 7-shaped semi-portal frame is installed, the anti-falling net is installed at the bottom of the main beam. The installation of supporting platform truck and the beginning of shield structure machine can normally be under construction in portal below, and the structure construction of medium plate can normally be under construction in portal top.
6) 4 supporting bolts 4 are arranged above each half portal frame at the interval of 1.8 m. The supporting bolt 4 consists of a gasket of 10mm, an adjustable tray and a screw rod. The total calculation height is 360mm, and the tray can be adjusted length on solid screw rod for 100mm, waits the template to lay and accomplishes the back, adjusts the top bolt height, guarantees the template roughness. And a bottom die can be normally paved and steel bars can be bound on the supporting bolts.
In conclusion, by means of the technical scheme, the 7-shaped semi-portal frame is adopted, the design of the steel upright column is cancelled, the side wall embedded steel plate is connected with the cross beam, the problem that the steel upright column at the side wall position in China in the prior art cannot meet the placing problem of a shield machine connecting bridge and a rear matched trolley No. 1 is solved, compared with the existing full-portal frame design, the curve starting requirement of the shield machine can be met, and the technical problem that the shield can be started when the middle plate structure is not completed in a station is solved.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, for example, as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate agent, and may be used for communicating the inside of two elements or interacting relation of two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The support for assisting shield starting is characterized by comprising a steel upright (1), wherein a steel upright foot (2) is arranged at the bottom end of the steel upright (1), a first steel cross beam (3) is arranged at the top of the steel upright (1), and a plurality of supporting bolts (4) are arranged at the top of the first steel cross beam (3);
the top of the supporting bolt (4) is provided with a second steel beam (5), the top of the second steel beam (5) is provided with a plurality of channel steel (6), and the top of the channel steel (6) is provided with a square timber beam (7).
2. The bracket for assisting shield launching according to claim 1, characterized in that the steel upright (1) and the first steel beam (3) are composed of two sets of symmetrically arranged branches (8), two sides of the two sets of branches (8) are connected through a plurality of gusset plates (9), and the surface of each branch (8) is provided with a plurality of longitudinal connecting steel beams (10).
3. A support for assisting shield initiation according to claim 2, characterized in that the steel column foot (2) comprises a steel plate (11) mounted at the bottom end of the branch (8), and that the top of the steel plate (11) and outside the bottom of the branch (8) is provided with a number of first stiffening ribs (12).
4. The support for assisting shield starting according to claim 2, wherein two groups of brackets (13) are symmetrically arranged at the bottom of one end, far away from the steel upright (1), of the first steel beam (3), a supporting plate (14) is arranged between the tops of the two groups of brackets (13), and a pre-buried steel plate (15) is arranged between one sides of the two groups of brackets (13).
5. A support for assisting shield initiation according to claim 1, characterized in that the top end of the jacking bolt (4) is connected with the second steel beam (5), and the bottom end of the jacking bolt (4) is connected with the first steel beam (3) through a backing plate (16).
6. A support for assisting shield start-up according to claim 4, characterized in that the top of the supporting plate (14) is provided with second stiffening ribs (17) on both sides which cooperate with the first steel beam (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220631417.8U CN216894438U (en) | 2022-03-22 | 2022-03-22 | Support for assisting shield launching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220631417.8U CN216894438U (en) | 2022-03-22 | 2022-03-22 | Support for assisting shield launching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216894438U true CN216894438U (en) | 2022-07-05 |
Family
ID=82190924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220631417.8U Expired - Fee Related CN216894438U (en) | 2022-03-22 | 2022-03-22 | Support for assisting shield launching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216894438U (en) |
-
2022
- 2022-03-22 CN CN202220631417.8U patent/CN216894438U/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 |
Granted publication date: 20220705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |