CN204457786U - The large diameter shield tunnel that digs after the dismounting of a kind of B section of jurisdiction builds subway station - Google Patents
The large diameter shield tunnel that digs after the dismounting of a kind of B section of jurisdiction builds subway station Download PDFInfo
- Publication number
- CN204457786U CN204457786U CN201520079980.9U CN201520079980U CN204457786U CN 204457786 U CN204457786 U CN 204457786U CN 201520079980 U CN201520079980 U CN 201520079980U CN 204457786 U CN204457786 U CN 204457786U
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- Prior art keywords
- shield tunnel
- jurisdiction
- section
- tunnel
- push pipe
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Abstract
The utility model relate to a kind of B section of jurisdiction remove after the large diameter shield tunnel that digs build subway station, it comprises shield tunnel, bottom girder, Zhong Qiang, top longeron, push pipe sheet, bottom tube sheet, side pilot tunnel, middle drift crown just serve as a contrast, type steel support and bowl fastening type support system; Wherein, described bottom girder, Zhong Qiang, top longeron are built successively from bottom to top between bottom tube sheet and push pipe sheet; Described push pipe sheet, bottom tube sheet are separately positioned on top and the bottom of shield tunnel; Described side pilot tunnel is positioned at the both sides of shield tunnel; Described middle drift crown just serves as a contrast the bottom that one end is positioned at side pilot tunnel, and the other end is connected to push pipe sheet; Described type steel support level frame is located in shield tunnel, its two ends and the welding of bottom tube sheet; Described bowl fastening type support system is arranged between type steel support and bottom girder.The large diameter shield tunnel construction subway station that digs after the dismounting of B section of jurisdiction of the present utility model has structure simply, construction safety, and the plurality of advantages such as efficiency of construction height.
Description
[technical field]
The utility model relates to a kind of subway station, is specifically related to the large diameter shield tunnel that digs after the dismounting of a kind of B section of jurisdiction and builds subway station, belong to railway traffic engineering technical field.
[background technology]
Rely on the large diameter single hole double track tunnel that position, station is through, stake arch wall associating supporting methods is adopted to dig the hole soil body in shield tunnel both sides, and remove shield structure both sides tunnel segment structure digging in process, form individual layer twin spans side platform subway station, this is the new technology that a subway station is built.
Digging in process the tunnel segment structure needing shield tunnel two side, wherein B section of jurisdiction is positioned at shield structure top, because B tunnel segment structure is from great, narrow space in hole, B section of jurisdiction Demolition Construction risk is maximum, and therefore, can B section of jurisdiction successfully be removed the direct structure digging station that restricts and be formed smoothly.
Therefore, for solving the problems of the technologies described above, necessary provide a kind of B section of jurisdiction of innovation remove after dig large diameter shield tunnel build subway station, to overcome described defect of the prior art.
[utility model content]
For solving the problem, the purpose of this utility model is to provide a kind of structure simple, construction safety, and the high B section of jurisdiction of efficiency of construction remove after the large diameter shield tunnel that digs build subway station.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of B section of jurisdiction remove after the large diameter shield tunnel that digs build subway station, it comprises shield tunnel, bottom girder, Zhong Qiang, top longeron, push pipe sheet, bottom tube sheet, side pilot tunnel, middle drift crown just serve as a contrast, type steel support and bowl fastening type support system; Wherein, described bottom girder, Zhong Qiang, top longeron are built successively from bottom to top between bottom tube sheet and push pipe sheet; Described push pipe sheet, bottom tube sheet are separately positioned on top and the bottom of shield tunnel; Described side pilot tunnel is positioned at the both sides of shield tunnel; Described middle drift crown just serves as a contrast the bottom that one end is positioned at side pilot tunnel, and the other end is connected to push pipe sheet; Described type steel support level frame is located in shield tunnel, its two ends and the welding of bottom tube sheet; Described bowl fastening type support system is arranged between type steel support and bottom girder.
The large diameter shield tunnel construction subway station that digs after the dismounting of B section of jurisdiction of the present utility model is further: described type steel support adopts the i iron of I22, spacing 500mm.
Compared with prior art, the utility model has following beneficial effect: B section of jurisdiction of the present utility model remove after the large diameter shield tunnel that digs build subway station to have structure simple, construction safety, and the plurality of advantages such as efficiency of construction height, its B section of jurisdiction of removing can utilize again.
[accompanying drawing explanation]
Fig. 1 is the schematic diagram setting up type steel support in the shield tunnel needing to remove section of jurisdiction section.
Fig. 2 is the soil body above the grouting and reinforcing middle drift vault soil body and push pipe sheet, symmetrical excavation both sides middle drift, the schematic diagram that construction middle drift crown just serves as a contrast.
Fig. 3 is the schematic diagram of the symmetrical excavation both sides middle drift residue soil body.
Fig. 4 is the schematic diagram of symmetrical little pilot tunnel preliminary bracing structure of removing in the middle drift of both sides.
Fig. 5 is at the schematic diagram needing to arrange under the type steel support removing B section of jurisdiction bowl fastening type support system.
Fig. 6 be the setting bracket processed is placed on bowl fastening type support on, with I22 i iron, support and Zhong Qiang are withstood, meanwhile, by top, B section of jurisdiction with jack bolt jail, the other side of jack be fixed on hole, side just serve as a contrast button encircle built-in fitting on schematic diagram.
Fig. 7 cuts top, B section of jurisdiction water drilling, then excises bolt and the longitudinal bolt of the connection of top, B section of jurisdiction; While cutting, by jack bolt jail, bottom, B section of jurisdiction, the other side of jack is fixed on hole, side and just serves as a contrast on the built-in fitting of button arch; Finally excise the bolt that bottom, B section of jurisdiction connects; With support front end for fulcrum, B section of jurisdiction is put into the schematic diagram on flange beam stand.
Fig. 8 is that section of jurisdiction to be placed on pilot tunnel inverted arch and to transport the schematic diagram of pilot tunnel by the cooperation by connecing the upper reserved suspension hook of arch.
Fig. 9 is the structural representation digging large diameter shield tunnel construction subway station after B section of jurisdiction of the present utility model is removed.
[detailed description of the invention]
Refer to shown in Figure of description 9, the utility model is that the large diameter shield tunnel that digs after a kind of B section of jurisdiction is removed builds subway station, and several parts such as it just serves as a contrast 4 by shield tunnel 1, bottom girder 14, middle wall 10, top longeron 15, push pipe sheet 5, bottom tube sheet 16, side pilot tunnel 17, middle drift crown, type steel support 2 and bowl fastening type support system 7 form.
Wherein, described bottom girder 14, middle wall 10, top longeron 15 are built successively from bottom to top between bottom tube sheet 16 and push pipe sheet 5.Described push pipe sheet 16, bottom tube sheet 5 are separately positioned on top and the bottom of shield tunnel 1.
Described side pilot tunnel 17 is positioned at the both sides of shield tunnel 1.Described middle drift crown just serves as a contrast the bottom that 4 one end are positioned at side pilot tunnel 17, and the other end is connected to push pipe sheet 5.
Described type steel support 2 level frame is located in shield tunnel 1, and its two ends and bottom tube sheet 16 weld: described type steel support 2 adopts the i iron of I22, spacing 500mm.
Described bowl fastening type support system 7 is arranged between type steel support 2 and bottom girder 14.
The construction method digging large diameter shield tunnel construction subway station after the dismounting of B section of jurisdiction of the present utility model is as follows:
1), as shown in Figure 1, erection type steel support 2 in the shield tunnel 1 needing to remove section of jurisdiction section, the i iron of type steel support employing I22, spacing 500mm, and with the pre-embedded steel slab firm welding on section of jurisdiction.
2), as shown in Figure 2, the grouting and reinforcing vault soil body and the soil body bound above block K section of jurisdiction, symmetrical excavation both sides middle drift 3, construction middle drift crown just serves as a contrast 4.Slip casting adopts deep hole grouting mode, if stratum is anhydrous, and note ordinary Portland cement slurries, if stratum is moisture, cementing-water glass dual slurry, and strictly control grouting pressure.In wide open digging adopt short benching tunnelling method, stay Core Soil, each excavation step pitch is not more than 0.75m, and according to face stratum stable state in digging process, local adopts ductule to carry out reinforcement grouting and reinforcing to stratum, arch.The side that middle drift crown just serves as a contrast 4 should be connected with push pipe sheet 5.
3), as shown in Figure 3, the symmetrical excavation both sides middle drift residue soil body; Excavation bottom maintains an equal level with the base plate preliminary bracing structure of side pilot tunnel;
4), as shown in Figure 4, the side pilot tunnel preliminary bracing structure 6 within the scope of the middle drift of both sides is removed, adopt manual demolition mode, first abolish preliminary bracing concrete, then use the mode of gas welding, cut off the steel grating of preliminary bracing.
5), as shown in Figure 5, needing to arrange bowl fastening type support system 7 under the type steel support removing section of jurisdiction.Support system is arranged will be considered to bear the section of jurisdiction load removed, and carries out inspection calculation to the intensity of bowl fastening type support system, rigidity and stability.
6), as shown in Figure 6, the setting bracket 8 processed is placed on above bowl fastening type support system 7, with I22 i iron 9, setting bracket 8 and middle wall 10 are withstood, meanwhile, by jack 12 bolt jail, top, B section of jurisdiction 11, the other side of jack is fixed on the built-in fitting 13 of side pilot tunnel preliminary bracing structure 6.
7), as shown in Figure 7, top, B section of jurisdiction 11 water drilling is cut, then excise bolt and the longitudinal bolt of top, B section of jurisdiction 11 connection.While cutting, by jack 12 bolt jail, bottom, B section of jurisdiction, the other side of jack is fixed on the built-in fitting of side pilot tunnel preliminary bracing structure 6.Finally excise the bolt that bottom, B section of jurisdiction 11 connects.With support 8 front end for fulcrum, B section of jurisdiction 11 is put on support 8;
8), as shown in Figure 8, just serve as a contrast by middle drift crown the cooperation reserving suspension hook on 4 and B section of jurisdiction 11 is transported pilot tunnel.
9), as shown in Figure 9, according to above-mentioned steps 5) ~ step 8), remove the B section of jurisdiction of another sidewall of shield tunnel.
Above detailed description of the invention is only the preferred embodiment of this creation, and not in order to limit this creation, any amendment made within all spirit in this creation and principle, equivalent replacement, improvement etc., within the protection domain that all should be included in this creation.
Claims (2)
1. B section of jurisdiction remove after the large diameter shield tunnel that digs build a subway station, it is characterized in that: comprise shield tunnel, bottom girder, Zhong Qiang, top longeron, push pipe sheet, bottom tube sheet, side pilot tunnel, middle drift crown just serve as a contrast, type steel support and bowl fastening type support system; Wherein, described bottom girder, Zhong Qiang, top longeron are built successively from bottom to top between bottom tube sheet and push pipe sheet; Described push pipe sheet, bottom tube sheet are separately positioned on top and the bottom of shield tunnel; Described side pilot tunnel is positioned at the both sides of shield tunnel; Described middle drift crown just serves as a contrast the bottom that one end is positioned at side pilot tunnel, and the other end is connected to push pipe sheet; Described type steel support level frame is located in shield tunnel, its two ends and the welding of bottom tube sheet; Described bowl fastening type support system is arranged between type steel support and bottom girder.
2. the large diameter shield tunnel that digs after the dismounting of B section of jurisdiction as claimed in claim 1 builds subway station, it is characterized in that: described type steel support adopts the i iron of I22, spacing 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079980.9U CN204457786U (en) | 2015-02-04 | 2015-02-04 | The large diameter shield tunnel that digs after the dismounting of a kind of B section of jurisdiction builds subway station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079980.9U CN204457786U (en) | 2015-02-04 | 2015-02-04 | The large diameter shield tunnel that digs after the dismounting of a kind of B section of jurisdiction builds subway station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457786U true CN204457786U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520079980.9U Expired - Fee Related CN204457786U (en) | 2015-02-04 | 2015-02-04 | The large diameter shield tunnel that digs after the dismounting of a kind of B section of jurisdiction builds subway station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457786U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714856A (en) * | 2016-04-30 | 2016-06-29 | 北京城乡建设集团有限责任公司 | Underground air duct construction method with first negative structural layer and second negative structural layer in bottom-up |
| CN111411968A (en) * | 2020-03-04 | 2020-07-14 | 中国建筑第二工程局有限公司 | Expanding excavation structure for shield tunnel foundation and construction method thereof |
| CN112814695A (en) * | 2021-02-02 | 2021-05-18 | 上海隧道工程有限公司 | Emergency stop belt of shield method submarine highway tunnel and construction method thereof |
-
2015
- 2015-02-04 CN CN201520079980.9U patent/CN204457786U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714856A (en) * | 2016-04-30 | 2016-06-29 | 北京城乡建设集团有限责任公司 | Underground air duct construction method with first negative structural layer and second negative structural layer in bottom-up |
| CN111411968A (en) * | 2020-03-04 | 2020-07-14 | 中国建筑第二工程局有限公司 | Expanding excavation structure for shield tunnel foundation and construction method thereof |
| CN111411968B (en) * | 2020-03-04 | 2021-08-03 | 中国建筑第二工程局有限公司 | Expanding excavation structure for shield tunnel foundation and construction method thereof |
| CN112814695A (en) * | 2021-02-02 | 2021-05-18 | 上海隧道工程有限公司 | Emergency stop belt of shield method submarine highway tunnel and construction method thereof |
| CN112814695B (en) * | 2021-02-02 | 2024-04-12 | 上海隧道工程有限公司 | Emergency stop belt for shield method submarine highway tunnel and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150708 Termination date: 20160204 |