CN205502088U - Anti structure of floating in existing tunnel - Google Patents
Anti structure of floating in existing tunnel Download PDFInfo
- Publication number
- CN205502088U CN205502088U CN201620161902.8U CN201620161902U CN205502088U CN 205502088 U CN205502088 U CN 205502088U CN 201620161902 U CN201620161902 U CN 201620161902U CN 205502088 U CN205502088 U CN 205502088U
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- existing tunnel
- floating
- existing
- pile
- excavation
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Abstract
The utility model provides an anti structure of floating in existing tunnel is provided with the anti superficial stake of a plurality of respectively in the both sides in existing tunnel, reaching top superficial anti, the top in existing tunnel be provided with the pea gravel concreten bed course on, be provided with anti kickboard on the pea gravel concreten bed course, make anti kickboard fixed connection is in resisting the top of floating the stake to extend to the top top in existing tunnel, the buoyancy that makes existing tunnel receive transmits extremely through anti kickboard anti superficial stake, by the anti pile load of floating. The utility model discloses an actuating system has increased anti buoyancy, effectively solves the problem that anti buoyancy is not enough in existing tunnel.
Description
Technical field
This utility model relates to solving the existing genuine hypodynamic scheme of anti-floating, it is adaptable to solves existing genuine anti-floating power and is unsatisfactory for the situation of code requirement.
Background technology
Along with carrying out of urbanization process, engineering land used is more and more nervous, building on a certain degree of impact of generation more or less of existing engineering of a lot of new constructions.Such as: need on existing tunnel, remove certain thickness earthing, this anti-floating requirement that existing tunnel will be caused due to the minimizing of overlying burden to be unsatisfactory for specification, thus become the potential safety hazard of existing genuine operation process.
Utility model content
The purpose of this utility model is to propose the float Structure in a kind of existing tunnel, can pass through actuating system, increase anti-floating power, thus the hypodynamic problem of anti-floating effectively solving existing tunnel by scheme of the present utility model.
In order to achieve the above object, the technical solution of the utility model is to provide the float Structure in a kind of existing tunnel, wherein, is respectively arranged with several anti-floating piles in the both sides in existing tunnel；It is provided with pea gravel concreten bed course on the top in existing tunnel exposed and the top of anti-floating pile；Described pea gravel concreten bed course is provided with anti-floating plate, described anti-floating plate is made to be fixedly connected on the top of anti-floating pile, and extending to the over top in existing tunnel so that the buoyancy that existing tunnel is subject to is transferred to described anti-floating pile by anti-floating plate, described anti-floating pile undertake.
Preferably, described pea gravel concreten bed course is separately positioned on the bottom at the excavation being positioned at existing genuine top board both sides, and the bottom-exposed at each excavation goes out ceiling edge part and the top of anti-floating pile in existing tunnel, corresponding side.
Preferably, the bottom at described excavation is positioned at the top mark eminence of existing genuine top board；Both sides sidewall at described excavation is slope section.
Preferably, the bottom at described excavation remains with the waterproof layer in existing tunnel, and described pea gravel concreten bed course is positioned on the waterproof layer in existing tunnel.
Preferably, the anti-floating plate at described excavation is provided with backfill earthing.
Preferably, the end face of the backfill earthing at described excavation reaches ground elevation.
Preferably, the pile crown of described anti-floating pile is deep into the inside of anti-floating plate, makes anti-floating pile be fixedly attached to anti-floating plate.
This utility model provides the float Structure in a kind of existing tunnel, has an advantage in that: this utility model makes the buoyancy that existing tunnel is subject to, and passes to anti-floating plate through existing genuine top board, then the anti-floating pile being transferred to be fixed in anti-floating plate undertakes.This utility model solves the existing genuine hypodynamic problem of anti-floating, it is adaptable to solves existing genuine anti-floating power and is unsatisfactory for the situation of code requirement.
Accompanying drawing explanation
Fig. 1 is the transverse section of the float Structure in existing tunnel described in the utility model；
Fig. 2 is the plane graph of the float Structure in existing tunnel described in the utility model.
Detailed description of the invention
The utility model will be further described with embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1, shown in Fig. 2, this utility model provides the float Structure in a kind of existing tunnel, wherein, is respectively arranged with several anti-floating piles 1 in the existing both sides of genuine 6；The position of opening of existing genuine 6 top boards is provided with pea gravel concreten bed course 3；Existing genuine 6 tops and anti-floating pile 1 top are provided with anti-floating plate 2.
Existing genuine 6 top boards open position, at least excavate the ceiling edge position come out respectively in both sides；Meanwhile, is still come out in the top of top board both sides anti-floating pile 1 by excavation.Preferably in example, described pea gravel concreten bed course 3 is while the protective layer as existing genuine 6 waterproof layers, it is also possible to bed die when constructing as anti-floating plate 2.That is, on exposed at both sides ceiling edge position out and anti-floating pile 1 top, it is respectively arranged with described anti-floating plate 2.
When existing genuine 6 by buoyancy, anti-floating plate 2 can be transferred to by the existing top board of genuine 6；Owing to anti-floating pile 1 being fixed in anti-floating plate 2 in this utility model, the buoyancy being transferred to anti-floating plate 2 can be undertaken by anti-floating pile 1.That is, the pipeline of buoyancy is: existing genuine 6(top board) → anti-floating plate 2 → anti-floating pile 1.
One detailed description of the invention of the float Structure in existing tunnel described in the utility model, comprises following process:
S1, in the existing both sides of genuine 6, from ground elevation, apply downwards anti-floating pile 1.The horizontal spacing a of adjacent anti-floating pile 1, longitudinal pitch b, and stake number, can determine according to anti-floating power, rock-soil layer anti-pulls coefficient, anti-floating pile 1 diameter, the isoparametric requirement of rock-soil layer side friction.
S2, from ground elevation digging up and filling in earthing 4 to the top mark eminence of existing genuine 6 top boards；Both sides sidewall at each excavation is slope section 5, and the excavation ratio of slope of slope section 5 is set to 1:m(m value and can determine according to on-the-spot Geotechnical Engineering geology).Digging process should be noted to the protection of waterproof roll at existing genuine 6, it is to avoid destroy this waterproof roll.
S3, abolish the pile crown of anti-floating pile 1; then the bottom (on anti-floating pile 1 top and existing genuine 6 top boards) at excavation; pour certain thickness pea gravel concreten bed course 3, can not only be used for the protective layer to existing genuine 6 waterproof rolls, it is also possible to the bed die applied as anti-floating plate 2.
S4, pouring anti-floating plate 2, and ensure that the pile crown of anti-floating pile 1 gos deep into certain length in anti-floating plate 2, this length need to meet code requirement, and the thickness C of anti-floating plate 2 is determined by anti-floating power.
In the embodiment of diagram, the anti-floating plate 2 of each side is positioned at the bottom at the excavation of place, covers the top of corresponding side anti-floating pile 1, and extends to existing genuine 6 on the ceiling edge part of this corresponding side.In this example, existing genuine 6 top boards the most all expose, thus existing genuine 6 top boards are not all covered by anti-floating plate 2.And in other examples, can adjust the position of excavation, pea gravel concreten bed course 3 and anti-floating plate 2 accordingly according to actual requirement pours scope etc..
S5, after anti-floating plate 2 reaches design strength, backfill earthing 4 to ground elevation.
In sum, this utility model provides the float Structure in a kind of existing tunnel, makes existing genuine 6 buoyancy being subject to, passes to anti-floating plate 2 through existing genuine 6 top boards, then the anti-floating pile 1 being transferred to be fixed in anti-floating plate 2 undertakes.This utility model solves the existing genuine hypodynamic problem of anti-floating, it is adaptable to solves existing genuine anti-floating power and is unsatisfactory for the situation of code requirement.
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that the description above is not considered as restriction of the present utility model.After those skilled in the art have read foregoing, multiple amendment of the present utility model and replacement all be will be apparent from.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (7)
1. the float Structure in an existing tunnel, it is characterised in that
It is respectively arranged with several anti-floating piles (1) in the both sides of existing tunnel (6)；It is provided with pea gravel concreten bed course (3) on the top in existing tunnel (6) exposed and the top of anti-floating pile (1)；Described pea gravel concreten bed course (3) is provided with anti-floating plate (2), described anti-floating plate (2) is made to be fixedly connected on the top of anti-floating pile (1), and extend to the over top of existing tunnel (6), the buoyancy that existing tunnel (6) is subject to is transferred to described anti-floating pile (1) by anti-floating plate (2), described anti-floating pile (1) undertake.
The float Structure in existing tunnel the most as claimed in claim 1, it is characterised in that
Described pea gravel concreten bed course (3) is separately positioned on the bottom at the excavation being positioned at existing tunnel (6) top board both sides, and the bottom-exposed at each excavation goes out ceiling edge part and the top of anti-floating pile (1) in existing tunnel, corresponding side (6).
The float Structure in existing tunnel the most as claimed in claim 2, it is characterised in that
Bottom at described excavation is positioned at the top mark eminence of existing tunnel (6) top board；Both sides sidewall at described excavation is slope section (5).
The float Structure in existing tunnel the most as claimed in claim 2, it is characterised in that
Bottom at described excavation remains with the waterproof layer of existing tunnel (6), and described pea gravel concreten bed course (3) is positioned on the waterproof layer of existing tunnel (6).
5. the float Structure in existing tunnel as described in any one in claim 2 ~ 4, it is characterised in that
Backfill earthing (4) it is provided with on anti-floating plate (2) at described excavation.
The float Structure in existing tunnel the most as claimed in claim 5, it is characterised in that
The end face of the backfill earthing (4) at described excavation reaches ground elevation.
The float Structure in existing tunnel the most as claimed in claim 1, it is characterised in that
The pile crown of described anti-floating pile (1) is deep into the inside of anti-floating plate (2), makes anti-floating pile (1) be fixedly attached to anti-floating plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620161902.8U CN205502088U (en) | 2016-03-03 | 2016-03-03 | Anti structure of floating in existing tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620161902.8U CN205502088U (en) | 2016-03-03 | 2016-03-03 | Anti structure of floating in existing tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205502088U true CN205502088U (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620161902.8U Active CN205502088U (en) | 2016-03-03 | 2016-03-03 | Anti structure of floating in existing tunnel |
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| Country | Link |
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| CN (1) | CN205502088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625479A (en) * | 2016-03-03 | 2016-06-01 | 上海市政工程设计研究总院（集团）有限公司 | Anti-buoyancy structure of existing tunnel |
-
2016
- 2016-03-03 CN CN201620161902.8U patent/CN205502088U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625479A (en) * | 2016-03-03 | 2016-06-01 | 上海市政工程设计研究总院（集团）有限公司 | Anti-buoyancy structure of existing tunnel |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |