CN202755385U - Anti-floating structure of shallow-buried shield tunnel - Google Patents
Anti-floating structure of shallow-buried shield tunnel Download PDFInfo
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- CN202755385U CN202755385U CN 201220322442 CN201220322442U CN202755385U CN 202755385 U CN202755385 U CN 202755385U CN 201220322442 CN201220322442 CN 201220322442 CN 201220322442 U CN201220322442 U CN 201220322442U CN 202755385 U CN202755385 U CN 202755385U
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- shield tunnel
- tunnel
- fixing hole
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Abstract
The utility model discloses an anti-floating structure of a shallow-buried shield tunnel. The anti-floating structure of the shallow-buried shield tunnel comprises an anti-floating pile fixing hole and anti-floating piles, wherein the anti-floating pile fixing hole is arranged downwards along the inner surfaces of tunnel segments, and at least part of the anti-floating piles are positioned in the anti-floating pile fixing hole. The anti-floating structure further comprises a plurality of steel structural beams and a waterproof structure which is pre-buried inside the tunnel segments, wherein a plurality of anti-floating piles which are arranged along the same axis of the inner surfaces of the tunnel segments are fixedly placed on the same steel structural beams. By the aid of the anti-floating structure of the shallow-buried shield tunnel, the anti-floating requirement of the shallow-buried shield tunnel is satisfied, and the anti-floating structure can also be used even when uplift pile construction conditions don't exist around the built shallow-buried tunnel or foundation pit base plates don't exist.
Description
Technical field
The utility model relates to a kind of float Structure of subterranean tunnel, relates in particular to a kind of float Structure of shallow embedding shield tunnel.
Background technology
Tradition shield tunnel buried depth is deep, circular tunnel can satisfy the anti-floating requirement by dark earthing ballast, but when being subjected to the reason such as wiring length restriction, the tunnel need to adopt the shallow embedding shield construction, or when the excavation unloading of established tunnel top, circular tunnel relies on upper earthing and section of jurisdiction deadweight often can not satisfy the anti-floating requirement.
Chinese utility model patent 200620049257.7 is carried out excavation of foundation pit and is caused tunnel structure can not satisfy anti-floating requiring to have proposed structure of door type float prevention for solving the subway top, and this structure is comprised of base plate of foundation pit and uplift pile.Be newly-built shallow embedding shield tunnel and when not having base plate of foundation pit, the practicality of this kind float Structure has obtained restriction when the established tunnel periphery does not exist uplift pile execution conditions or tunnel.
Therefore, those skilled in the art is devoted to develop a kind of float Structure of shallow embedding shield tunnel, overcomes above-mentioned deficiency, improves its practicality, satisfies the anti-floating requirement of shallow embedding shield tunnel.
The utility model content
Be different from prior art, technical problem to be solved in the utility model provides a kind of float Structure that shallow embedding shield tunnel anti-floating requires that satisfies, even can overcome the float Structure that also can use when there are not the uplift pile execution conditions in built shallow tunnel periphery or do not have base plate of foundation pit.
For achieving the above object, the utility model provides a kind of float Structure of shallow embedding shield tunnel, comprise that the anti-floating pile fixing hole offered along the tunnel duct piece inner surface and at least a portion are arranged on the anti-floating pile in the described anti-floating pile fixing hole down, described float Structure also comprises some steel structure girders, is fixedly installed on the same described steel structure girder along a plurality of described anti-floating pile of the same axis arranged of described tunnel duct piece inner surface.
More excellent, described steel structure girder comprises Two bors d's oeuveres channel-section steel and the batten plate that arranges back-to-back, described batten plate is fixedly installed on the described Two bors d's oeuveres channel-section steel.
More excellent, described steel structure girder also includes floor, and described floor is arranged in the groove of described Two bors d's oeuveres channel-section steel.
More excellent, described anti-floating pile fixing hole is for radially offering down, and described anti-floating pile is anchor pole or mini pile.
More excellent, described float Structure also comprises the water proof structure that is embedded in the described tunnel duct piece, described water proof structure comprises the steel tube body of built-in Seal end plate and is arranged on the sealing steel loop of described steel tube body lateral surface, the anti-floating pile hole is set on the described Seal end plate; Described water proof structure is arranged on the top of described anti-floating pile fixing hole, and described anti-floating pile is located in described anti-floating pile hole and the described anti-floating pile fixing hole.
More excellent, described steel tube body comprises the first steel pipe and second steel pipe of coaxial setting, the diameter of described the second steel pipe is greater than the diameter of described the first steel pipe, one end of described the second steel pipe is welded and fixed by an end that connects steel loop and described the first steel pipe, and described connection steel loop is double does described Seal end plate.
More excellent, described sealing steel loop is arranged on described the first steel pipe, is filled with pea gravel concreten in described the second steel pipe.
More excellent, described water proof structure also comprises the dowel that is arranged on described steel tube body lateral surface.
More excellent, described dowel is three, is evenly arranged on the same circumference of described steel tube body lateral surface.
The beneficial effects of the utility model:
The utility model is a kind ofly not have the uplift pile execution conditions or do not have the float Structure that also can use under the condition of base plate of foundation pit at tunnel perimeter, satisfied the requirement of shallow embedding shield tunnel anti-floating, it is good to possess simultaneously waterproof ability, the good technique effect of whole anti-floating effect.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand fully the purpose of this utility model, feature and effect.
Description of drawings
Fig. 1 is the float Structure schematic diagram of shallow embedding shield tunnel.
Fig. 2 is that the float Structure anchor pole of shallow embedding shield tunnel is implemented schematic diagram.
Fig. 3 be the float Structure anchor pole of shallow embedding shield tunnel along the tunnel axial sectional view.
The specific embodiment
As shown in Figure 1, structural representation for the float Structure of shallow embedding shield tunnel of the present utility model, the float Structure anchor pole implementation schematic diagram of a kind of shallow embedding shield tunnel as shown in Figure 2, comprise along the tunnel anchor pole fixing hole of radially offering of 1 section of jurisdiction 3 inner surfaces down, and be arranged on the anchor pole 2 in the anchor pole fixing hole.Exemplary, anchor pole 2 can be grouting rock bolt.
In other specific embodiment, anchor pole 2 also can be other anti-floating piles such as mini pile, utilizes the cement mortar fill in the anti-floating pile fixing hole solid with the country rock bonding, while anchor pole fixing hole also can for vertically downward or other offer down at any angle.
In engineering practical operation engineering, in order to reduce the damage to the section of jurisdiction, employing is default anchor pole fixing hole in the section of jurisdiction, when carrying out the combination of shallow embedding shield tunnel section of jurisdiction, the section of jurisdiction of having preset the anchor pole fixing hole is arranged on downside, adjust the position of anchor pole fixing hole, continue in anchor pole fixing hole position along its radially down direction further deepen setting of anchor pole fixing hole with the model of anchor pole 2 according to actual needs, anchor pole 2 is fixed in the anchor pole fixing hole, can adjust arbitrarily quantity and the position of anchor pole fixing hole according to tunnel anti-floating needs, improve greatly the practicality of described float Structure.
Fig. 3 be the float Structure anchor pole of shallow embedding shield tunnel along the tunnel axial sectional view.Concrete, referring to Fig. 1-shown in Figure 3, described float Structure also comprises steel structure girder 5, is fixedly installed on the same steel structure girder 5 along a plurality of anchor poles 2 of the same axis arranged of section of jurisdiction 3 inner surfaces in tunnel 1.
Exemplary, in the present embodiment, comprise the Two bors d's oeuveres channel-section steel 6 and the batten plate 7 that arrange back-to-back on the steel structure girder 5, batten plate 7 is fixedly welded on the described Two bors d's oeuveres channel-section steel 6, also be provided with ribbed panel 18 in the groove of Two bors d's oeuveres channel-section steel 6, batten plate 7 offers through hole, and a part of anchor pole 2 stretches out steel structure girder 5 from batten plate 7 through holes, the termination of stretching out of anchor slab is provided with bolt 9 and pad 10, and anchor pole 2 imbeds part in the anchor pole fixing hole and colligation is fixed with support 11.
Adopt steel structure girder and added support, further improved integraty and the anti-floating effect of float Structure.
Concrete, exemplary as shown in Figures 2 and 3, described float Structure also comprises the water proof structure in the section of jurisdiction 3 that is embedded in tunnel 1.
Water proof structure comprises the steel tube body of built-in Seal end plate 12 and is arranged on the sealing steel loop 13 of steel tube body lateral surface, on the Seal end plate 12 bolthole is set.
Water proof structure is arranged on the top of anchor pole fixing hole, anchor pole 2 is located in bolthole and the anchor pole fixing hole, fixing by the girth joint sealing between anchor pole and the bolthole, by being set, water proof structure eliminates the hidden danger that underground water infiltrates by the anchor pole fixing hole on the section of jurisdiction and bolthole.
As the further specific embodiment of present embodiment, above-mentioned steel tube body comprises the first steel pipe 14 and second steel pipe 15 of coaxial setting.The diameter of the second steel pipe 15 is greater than the diameter of the first steel pipe 14, and an end of the second steel pipe 15 is welded and fixed by an end that connects steel loop 16 and the first steel pipe 14.
Exemplary, connecting steel loop 16 and can also doublely do Seal end plate, sealing steel loop 13 is arranged on the first steel pipe 14, is filled with pea gravel concreten in the second steel pipe 15.
Water proof structure also comprises three dowels 17 that evenly are arranged on the same circumference of the first steel pipe 14 lateral surfaces, has further improved waterproof ability and the connection reliability of float Structure.
Exemplary, the float Structure of a kind of shallow embedding shield tunnel of this specific embodiment is to be applied in like this on the circular tunnel section of jurisdiction that need to carry out the anchor pole anti-floating:
At first, as shown in Figure 2, during the cast of section of jurisdiction water proof structure is embedded in the section of jurisdiction, the section of jurisdiction extrados stays protective layer thickness; During on-the-spot anchor bolt construction, with the concrete chisel removal of water proof structure bottom.
Then, be embedded with the water proof structure place, along the tunnel duct piece inner surface radially bore the anchor pole fixing hole down, inject the cement mortar body of certain grade in the hole, treat that the aperture bleeding stops slip casting.
Thereafter, with one section on the top of anchor pole smear epoxy resin carry out anticorrosion, and to stretching out the anchor pole end hank knotting certain-length of section of jurisdiction.
Again, will be behind the good support of anchor pole colligation implant in the hole, as reinforcing bar oversize in the tunnel constructional difficulties, can implant by reinforcing bar connector or welding segmentation; After strength of cement mortar reaches design load 75%, cut aperture place's bleeding.
At last, fill and lead up the second steel pipe with pea gravel concreten, a plurality of described anchor pole that will be in the same axis arranged of tunnel duct piece inner surface is connected and fixed by steel structure girder, forms an integral body, strengthen the globality of tunnel anti-floating, so far finish the application operating of present embodiment.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all in the art technician comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (9)
1. the float Structure of a shallow embedding shield tunnel is characterized in that: comprise that the anti-floating pile fixing hole offered along the tunnel duct piece inner surface and at least a portion are arranged on the anti-floating pile in the described anti-floating pile fixing hole down; Described float Structure also comprises some steel structure girders, is fixedly installed on the same described steel structure girder along a plurality of described anti-floating pile of the same axis arranged of described tunnel duct piece inner surface.
2. the float Structure of shallow embedding shield tunnel as claimed in claim 1 is characterized in that: described steel structure girder comprises Two bors d's oeuveres channel-section steel and the batten plate that arranges back-to-back, and described batten plate is fixedly installed on the described Two bors d's oeuveres channel-section steel.
3. the float Structure of shallow embedding shield tunnel as claimed in claim 2, it is characterized in that: described steel structure girder also includes floor, and described floor is arranged in the groove of described Two bors d's oeuveres channel-section steel.
4. the float Structure of shallow embedding shield tunnel as claimed in claim 1, it is characterized in that: described anti-floating pile fixing hole is for radially offering down, and described anti-floating pile is anchor pole or mini pile.
5. such as the float Structure of each described shallow embedding shield tunnel of claim 1-4, it is characterized in that: described float Structure also comprises the water proof structure that is embedded in the described tunnel duct piece, described water proof structure comprises the steel tube body of built-in Seal end plate and is arranged on the sealing steel loop of described steel tube body lateral surface, the anti-floating pile hole is set on the described Seal end plate; Described water proof structure is arranged on the top of described anti-floating pile fixing hole, and described anti-floating pile is located in described anti-floating pile hole and the described anti-floating pile fixing hole.
6. the float Structure of shallow embedding shield tunnel as claimed in claim 5, it is characterized in that: described steel tube body comprises the first steel pipe and second steel pipe of coaxial setting, the diameter of described the second steel pipe is greater than the diameter of described the first steel pipe, one end of described the second steel pipe is welded and fixed by an end that connects steel loop and described the first steel pipe, and described connection steel loop is double does described Seal end plate.
7. the float Structure of shallow embedding shield tunnel as claimed in claim 5, it is characterized in that: described sealing steel loop is arranged on described the first steel pipe, is filled with pea gravel concreten in described the second steel pipe.
8. the float Structure of shallow embedding shield tunnel as claimed in claim 5, it is characterized in that: described water proof structure also comprises the dowel that is arranged on described steel tube body lateral surface.
9. the float Structure of shallow embedding shield tunnel as claimed in claim 8, it is characterized in that: described dowel is three, is evenly arranged on the same circumference of described steel tube body lateral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220322442 CN202755385U (en) | 2012-07-05 | 2012-07-05 | Anti-floating structure of shallow-buried shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220322442 CN202755385U (en) | 2012-07-05 | 2012-07-05 | Anti-floating structure of shallow-buried shield tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755385U true CN202755385U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220322442 Expired - Fee Related CN202755385U (en) | 2012-07-05 | 2012-07-05 | Anti-floating structure of shallow-buried shield tunnel |
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| CN (1) | CN202755385U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776899A (en) * | 2012-07-05 | 2012-11-14 | 上海市城市建设设计研究总院 | Anti-floating structure of shallow-buried shield tunnel |
| CN104092030A (en) * | 2014-07-03 | 2014-10-08 | 福建永福工程顾问有限公司 | Pipe-jacking joint grounding method and structure |
| CN116657675A (en) * | 2023-07-31 | 2023-08-29 | 中国建筑第六工程局有限公司 | Construction method for anti-floating reinforcement of thin bottom plate of subway station foundation pit in high water level area |
-
2012
- 2012-07-05 CN CN 201220322442 patent/CN202755385U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776899A (en) * | 2012-07-05 | 2012-11-14 | 上海市城市建设设计研究总院 | Anti-floating structure of shallow-buried shield tunnel |
| CN102776899B (en) * | 2012-07-05 | 2014-05-14 | 上海市城市建设设计研究总院 | Anti-floating structure of shallow-buried shield tunnel |
| CN104092030A (en) * | 2014-07-03 | 2014-10-08 | 福建永福工程顾问有限公司 | Pipe-jacking joint grounding method and structure |
| CN116657675A (en) * | 2023-07-31 | 2023-08-29 | 中国建筑第六工程局有限公司 | Construction method for anti-floating reinforcement of thin bottom plate of subway station foundation pit in high water level area |
| CN116657675B (en) * | 2023-07-31 | 2023-11-14 | 中国建筑第六工程局有限公司 | Construction method for anti-floating reinforcement of thin bottom plate of subway station foundation pit in high water level area |
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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 |
Granted publication date: 20130227 Termination date: 20180705 |
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| CF01 | Termination of patent right due to non-payment of annual fee |