CN217267521U - Support device for GIL open-cut tunnel foundation pit - Google Patents
Support device for GIL open-cut tunnel foundation pit Download PDFInfo
- Publication number
- CN217267521U CN217267521U CN202221100903.3U CN202221100903U CN217267521U CN 217267521 U CN217267521 U CN 217267521U CN 202221100903 U CN202221100903 U CN 202221100903U CN 217267521 U CN217267521 U CN 217267521U
- Authority
- CN
- China
- Prior art keywords
- steel
- support
- foundation pit
- gil
- open
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
A supporting device for a GIL open-cut tunnel foundation pit comprises a steel support (3), a steel purlin (2) and a square steel plate (4). The device is arranged between the foundation pit support structure (1) and the underground pipe gallery tunnel (5); the square steel plate is fixedly installed on the wall of the underground pipe gallery tunnel through bolts, the steel supports are installed between the steel purlins and the square steel plate, and the steel supports are respectively connected with the steel purlins and the square steel plate into a whole through welding. The arrangement of the support device of the GIL open-cut tunnel foundation pit of the utility model can ensure that the GIL open-cut tunnel in the foundation pit engineering can be safely built under the condition of ensuring enough support; the construction and installation are safer and more convenient, the risk in the construction process is reduced, and the construction safety is improved.
Description
Technical Field
The utility model relates to a support device of GIL open cut tunnel foundation ditch belongs to underground space structure technical field.
Background
Along with the continuous acceleration of the urbanization construction of China, more and more underground pipe gallery tunnels are used in municipal pipe network construction and power transmission and distribution line cabling engineering projects in the present stage, and the tunnel laying construction becomes one of the inevitable directions of the development of the GIL power pipeline construction technology.
In consideration of the safety problem of foundation pit construction and management, steel supports are often adopted for supporting in the foundation pit after the foundation pit excavation is completed, but because the GIL open cut tunnel engineering needs to carry out the foundation pit excavation, the GIL tunnel is built in the foundation pit, the original steel supports in the foundation pit need to be dismantled, the deformation of a foundation pit support structure and peripheral soil bodies is increased, and the safety of the foundation pit engineering is influenced. The complete removal of the steel pipe inner support has a great influence on the safety of foundation pit engineering, and the GIL open-cut tunnel foundation pit cannot be constructed without removing the existing support.
Disclosure of Invention
The to-be-solved technical problem of the utility model is, in order to solve the construction difficult problem in the GIL open cut tunnel among the present foundation ditch engineering, disclose a supporting device of GIL open cut tunnel foundation ditch.
The utility model adopts the technical scheme that the support device for the GIL open cut tunnel foundation pit comprises a steel support, a steel purlin and a square steel plate; the device is arranged between the foundation pit support structure and the underground pipe gallery tunnel; the square steel plate is fixedly installed on the wall of the underground pipe gallery tunnel through bolts, the steel support is installed between the steel purlin and the square steel plate, and the steel support is respectively connected with the steel purlin and the square steel plate into a whole through welding.
Bolt holes are formed in four corners of the square steel plate, and reserved positions among the four bolt holes are used for welding end faces of the steel supports.
The steel support is a support steel pipe for building a foundation pit; one end of the steel support is welded and fixed perpendicular to the plane of the square steel plate.
The steel purlin is used for connecting a support and a fender pile, and a gap between the support and the fender pile needs to be filled with fine aggregate concrete, so that the steel purlin plays a role in fixing a steel support and transferring load.
The beneficial effects of the utility model are that, the arrangement of the support device of the GIL open trench tunnel foundation pit of the utility model can ensure that the GIL open trench tunnel can be safely constructed under the condition of ensuring enough support in the foundation pit engineering; the construction and installation are safer and more convenient, the risk in the construction process is reduced, and the construction safety is improved.
Drawings
Fig. 1 is a front view of a support device for a foundation pit of a GIL open-cut tunnel of the present invention;
fig. 2 is a top view of the support device for the foundation pit of the GIL open-cut tunnel of the present invention;
FIG. 3 is a cross-sectional view AA of FIG. 1;
FIG. 4 is a schematic structural view of a square steel plate;
in the figure: 1 is a foundation pit enclosure structure; 2, steel purlin; 3, steel support; 4 is a square steel plate; 5, underground pipe gallery tunnels; 41. 42, 43, 44 are bolt holes.
Detailed Description
The specific implementation mode of the utility model is shown in the attached drawings.
As shown in fig. 1 and 2, the support device for the foundation pit of the GIL open-cut tunnel according to the embodiment includes steel supports 3, steel purlins 2 and square steel plates 4. The device is arranged between the foundation pit support structure 1 and the underground pipe gallery tunnel 5; the square steel plate 4 is fixedly arranged on the wall of the underground pipe gallery tunnel 5 through bolts; the steel support 3 is arranged between the steel purlin 2 and the square steel plate 4, and the steel support 3 is respectively connected with the steel purlin 2 and the square steel plate 4 into a whole through welding.
The steel support 3 of the embodiment is a steel pipe with a diameter of 609mm and a wall thickness of 16mm, and the length thereof is selected to be a proper length according to actual engineering.
The square steel plate 4 of the embodiment has a thickness of 32mm, is cut to a width matched with that of the steel support, and is welded with the steel support 3 in a welding mode. The square steel plate 4 has bolt holes at four corners, as shown in fig. 4, wherein 41, 42, 43, 44 are bolt holes.
The steel support 3 and the steel purlin 2 of the embodiment are welded with each other to form a whole; the square steel plate 4 and the steel support 3 form a whole in a welding mode; the square steel plate 4 and the GIL open-cut tunnel 5 are connected into a whole through bolts.
The support device for the GIL open-cut tunnel foundation pit in the embodiment comprises the following installation methods:
after the excavation of the foundation pit of the GIL open-cut tunnel is finished, the interior of the foundation pit can be supported according to engineering design. When the GIL tunnel is built in the foundation pit, the steel supports in the construction section range are dismantled so as not to hinder the building of the tunnel. After the tunnel construction is completed, the square steel plate 4 and the GIL open-cut tunnel 5 are connected to the outer wall of the tunnel through bolts, and the square steel plate 4 is placed at the position shown in FIG. 3. And at the moment, constructing a steel purlin 2 on the foundation pit enclosure 1 structure with the elevation corresponding to the square steel plate 4, finally putting the steel support 3, welding two ends of the steel support 3 on the square steel plate 4 and the steel purlin 2 respectively, and supporting the foundation pit.
Claims (5)
1. A support device for a GIL open-cut tunnel foundation pit is characterized by comprising a steel support, a steel purlin and a square steel plate; the device is arranged between the foundation pit support structure and the underground pipe gallery tunnel; the square steel plate is fixedly installed on the wall of the underground pipe gallery tunnel through bolts, the steel support is installed between the steel purlin and the square steel plate, and the steel support is respectively connected with the steel purlin and the square steel plate into a whole through welding.
2. The support device for the GIL open-cut tunnel foundation pit as claimed in claim 1, wherein bolt holes are formed in four corners of the square steel plate, and reserved positions among the four bolt holes are used for welding end faces of steel supports.
3. The support device for the GIL open-cut tunnel foundation pit according to claim 1, wherein the steel support is a support steel pipe for constructing the foundation pit; one end of the steel support is welded and fixed perpendicular to the plane of the square steel plate.
4. The support device for the GIL open-cut tunnel foundation pit as claimed in claim 1, wherein the steel purlin is used for connecting a support and a fender pile, and a gap between the support and the fender pile is filled with fine aggregate concrete to play a role in fixing the steel support and transferring load.
5. The support device for the GIL open-cut tunnel foundation pit according to claim 3, wherein the diameter of the steel support is 609mm, and the wall thickness is 16 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221100903.3U CN217267521U (en) | 2022-05-10 | 2022-05-10 | Support device for GIL open-cut tunnel foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221100903.3U CN217267521U (en) | 2022-05-10 | 2022-05-10 | Support device for GIL open-cut tunnel foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217267521U true CN217267521U (en) | 2022-08-23 |
Family
ID=82883871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221100903.3U Active CN217267521U (en) | 2022-05-10 | 2022-05-10 | Support device for GIL open-cut tunnel foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217267521U (en) |
-
2022
- 2022-05-10 CN CN202221100903.3U patent/CN217267521U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212358368U (en) | Adjustable integral back wall for jacking pipe | |
| CN111636437A (en) | Permanent-temporary combined supporting system and method for extra-large foundation pit near subway | |
| CN113513015A (en) | Semi-prefabricated concrete reinforcement cage underground continuous wall and construction method | |
| CN217267521U (en) | Support device for GIL open-cut tunnel foundation pit | |
| CN216973425U (en) | Inclined prefabricated steel pile foundation pit supporting system capable of being supported and excavated firstly | |
| CN108005119B (en) | Concrete pipe gallery with integrated supporting wall gallery and installation method thereof | |
| CN113445515B (en) | Construction method for reverse construction of three-row pile support of ultra-deep foundation pit | |
| CN214695645U (en) | Supporting structure capable of applying prestress | |
| CN215165641U (en) | Supporting structure adopting combination of triangular supports and Larsen steel sheet piles | |
| CN213508572U (en) | Piping lane supporting construction | |
| CN110616714B (en) | Novel enclosure construction method for existing underground structure deepening | |
| CN217683557U (en) | Prefabricated sleeper beam of municipal works concrete pipe | |
| CN111749277A (en) | Pipe-jacking building wall structure and construction method thereof | |
| CN220866968U (en) | Can turnover formula tower crane support system | |
| CN216739664U (en) | Supporting structure for subway station foundation pit | |
| CN211948320U (en) | Structure of steel pipe square and round transition section | |
| CN218148399U (en) | Steel structure assembled supporting device for foundation pit emergency | |
| CN109742715B (en) | Arrangement structure of electric power pipe trench after transition and modification and electric power pipe trench transition and modification method | |
| CN220080040U (en) | Concrete axial force servo supporting system capable of actively controlling deformation | |
| CN220452922U (en) | Building main foundation support changing device containing complex underground pipeline | |
| CN212477825U (en) | Pipe jacking building wall structure | |
| CN216552059U (en) | Basic structure of newly-added equipment on existing channel | |
| CN218263972U (en) | Foundation pit operation pipeline protection device | |
| CN213661165U (en) | Reinforced composite formwork-free cable trench | |
| CN211873027U (en) | Standardized and extensible fabricated foundation pit inner support system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |