CN203096774U - Anti-floating structure of open-cut tunnel - Google Patents
Anti-floating structure of open-cut tunnel Download PDFInfo
- Publication number
- CN203096774U CN203096774U CN 201220631262 CN201220631262U CN203096774U CN 203096774 U CN203096774 U CN 203096774U CN 201220631262 CN201220631262 CN 201220631262 CN 201220631262 U CN201220631262 U CN 201220631262U CN 203096774 U CN203096774 U CN 203096774U
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- Prior art keywords
- tunnel
- floating
- open
- agent structure
- main body
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Abstract
The utility model discloses an anti-floating structure of an open-cut tunnel. The anti-floating structure comprises a tunnel main body structure and retaining piles located at the two transverse sides of the tunnel main body structure, wherein the retaining piles are respectively arranged between the two transverse sides of the tunnel main body structure and a soil layer, and retaining-structure crown beams which transversely extend above the tunnel main body structure are fixedly arranged at the upper ends of the retaining piles. According to the anti-floating structure of the open-cut tunnel, the structure is simple, safe and reliable, the safety of a tunnel can be guaranteed during long-term operation, the anti-floating cost is greatly reduced, and the cost for disease problem treatment during operation is reduced; and the anti-floating structure is applicable to sections, which do not meet anti-floating requirements and penetrate through soft ground layers, of the open-cut tunnel and is particularly applicable to sections with rich water and low carrying capacity, so that social and economic benefits are obvious.
Description
Technical field
The utility model relates to underground traffic construction of tunnel technical field, refers to it is a kind of structure of utilizing fender post as the open trench tunnel anti-floating particularly.
Background technology
In underground traffic tunnel construction process, because to circuit, headroom requires relatively stricter in absolute altitude and the structure, the anti-floating design has just become the important component part of structure design, if design can not be satisfied the requirement of structure anti-floating, may cause partly segment structure come-up, bottom slab crack, structure is divided the internode dislocation, thereby the destruction that causes railway roadbed and track structure, influence safety problems such as traffic safety, to the engineering infringement greatly, therefore, how reasonably to carry out the design of structure anti-floating, accomplish both to guarantee structural safety, can reduce construction costs again, and easy construction, just seem has actual Practical significance very much.
Adopt the open trench tunnel of fender posts such as the stake of SMW worker's method, drilled pile as space enclosing structure, when if its deadweight anti-floating of agent structure does not meet the demands, the steel concrete that generally needs the to be connected as a single entity can stake of holing at tunnel agent structure base plate setting and base plate, the main frictional force by pile body and soil layer of uplift pile is come the stressed anti-floating effect that reaches, but because steel concrete boring uplift pile expense costliness, and cause certain influence (such as increasing floor reinforcement amount etc.) to agent structure is stressed, cause construction inconvenience, therefore need improve prior art.
The utility model content
The purpose of this utility model is exactly the deficiency that will solve the above-mentioned background technology, and a kind of simple in structure, with low cost, strong open trench tunnel structure of opposing buoyancy capacity is provided, and makes it can effectively control the tunnel come-up, guarantees the long-term operation security in tunnel.
The technical solution of the utility model is: a kind of open trench tunnel float Structure, comprise tunnel agent structure and the fender post that is positioned at tunnel agent structure both lateral sides, described fender post is located at respectively between tunnel agent structure both lateral sides and the soil layer, and described fender post upper end is fixed with the space enclosing structure Guan Liang to the top horizontal expansion of tunnel agent structure.
In such scheme:
Fill by concrete between described space enclosing structure Guan Liang and the tunnel agent structure.
Described fender post and space enclosing structure are preced with between the beam by rigidly fixing connection.
Described concrete is the C35 slightly expanded concrete.
Described space enclosing structure Guan Liang is not less than 400mm to the length of tunnel agent structure horizontal expansion.
In the utility model, described fender post is for forming by the stake of SMW worker's method, reinforced concrete bored pile construction, it and tunnel agent structure realize linking into an integrated entity by the concrete backfill between space enclosing structure Guan Liang, space enclosing structure Guan Liang and the tunnel agent structure, and space enclosing structure Guan Liang can doublely do the capping beam of tunnel agent structure.
In the utility model, the buoyancy of tunnel agent structure is passed to fender post by fender post apical cap beam, offsets tunnel agent structure buoyancy by the deadweight of fender post and with the frictional force that soil layer produces again, reaches the purpose of tunnel anti-floating; Between tunnel agent structure and stake apical cap beam by the concrete power transmission.
Advantage of the present utility model is:
1) open trench tunnel that does not meet the demands for anti-floating can be cancelled the drill-pouring uplift pile that is provided with at tunnel floor, reduces investment outlay;
2) the utility model globality is strong, and after the drill-pouring uplift pile that the cancellation tunnel floor is provided with, the tunnel globality is strong, and structural safety is reliable.
The utility model structure is simple in structure safe and reliable, can guarantee the long-term operation security in tunnel, significantly save the anti-floating expense, save operation phase disease regulation expense, what be applicable to that open trench tunnel do not satisfy that anti-floating requires passes through the soft stratum location, be particularly useful for the extremely low section of Fu Shui, supporting capacity, economic results in society are obvious.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, is convenient to be well understood to the utility model, but they do not constitute qualification to the utility model.
A kind of open trench tunnel float Structure as shown in Figure 1, tunnel agent structure 2 and the fender post 1 that is positioned at tunnel agent structure 2 both lateral sides, fender post 1 is located at respectively between tunnel agent structure 2 both lateral sides and the soil layer 5, fender post 1 is for passing through the stake of SMW worker's method, the reinforced concrete bored pile construction forms, fender post 1 upper end is fixed with the space enclosing structure hat beam 3 to the 2 top horizontal expansions of tunnel agent structure, space enclosing structure is preced with between beam 3 and the fender post 1 by rigidly fixing connection, space enclosing structure hat beam 3 is not less than 400mm to the length of tunnel agent structure horizontal expansion, fill by concrete 4 between space enclosing structure hat beam 3 and the tunnel agent structure 1, concrete 4 is preferably the C35 slightly expanded concrete, can doublely do the capping beam of tunnel agent structure 2 by the hat of the space enclosing structure after concrete 4 backfills beam 3.
In the present embodiment, fender post 1 and tunnel agent structure 2 realize linking into an integrated entity by concrete 4 backfills between space enclosing structure hat beam 3, space enclosing structure hat beam 3 and the tunnel agent structure 2, the buoyancy of tunnel agent structure 2 is passed to fender post 1 by fender post apical cap beam 3, by fender post 1 self deadweight and the buoyancy of offsetting tunnel agent structure 2 thereof, reach tunnel anti-floating purpose again with the frictional force that soil layer 5 produces; Than the constructure scheme of traditional drill-pouring uplift pile that is provided with at tunnel floor, can save the great amount of investment cost.
The utility model is simple in structure, safe and reliable, can guarantee the long-term operation security in tunnel, significantly save the anti-floating expense, save operation phase disease regulation expense, what be applicable to that open trench tunnel do not satisfy that anti-floating requires passes through the soft stratum location, be particularly useful for the extremely low section of Fu Shui, supporting capacity, economic results in society are obvious.
Claims (5)
1. open trench tunnel float Structure, comprise tunnel agent structure (2) and be positioned at the fender post (1) of tunnel agent structure (2) both lateral sides, described fender post (1) is located at respectively between tunnel agent structure (2) both lateral sides and the soil layer (5), it is characterized in that: described fender post (1) upper end is fixed with the space enclosing structure Guan Liang (3) to tunnel agent structure (2) top horizontal expansion.
2. a kind of open trench tunnel float Structure according to claim 1 is characterized in that: fill by concrete (4) between described space enclosing structure Guan Liang (3) and the tunnel agent structure (2).
3. a kind of open trench tunnel float Structure according to claim 1 is characterized in that: between described fender post (1) and the space enclosing structure Guan Liang (3) by rigidly fixing connection.
4. a kind of open trench tunnel float Structure according to claim 3 is characterized in that: described concrete (4) is the C35 slightly expanded concrete.
5. according to the described a kind of open trench tunnel float Structure of arbitrary claim among the claim 1-4, it is characterized in that: described space enclosing structure Guan Liang (3) is not less than 400mm to the length of tunnel agent structure (2) horizontal expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631262 CN203096774U (en) | 2012-11-26 | 2012-11-26 | Anti-floating structure of open-cut tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631262 CN203096774U (en) | 2012-11-26 | 2012-11-26 | Anti-floating structure of open-cut tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096774U true CN203096774U (en) | 2013-07-31 |
Family
ID=48848191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220631262 Expired - Lifetime CN203096774U (en) | 2012-11-26 | 2012-11-26 | Anti-floating structure of open-cut tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203096774U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943492A (en) * | 2012-11-26 | 2013-02-27 | 中铁第四勘察设计院集团有限公司 | Anti-floating structure for open trench tunnel |
| CN105625480A (en) * | 2016-03-16 | 2016-06-01 | 上海市城市建设设计研究总院 | Anti-floating method and structure for open-segment tunnel structure |
| CN106049538A (en) * | 2016-08-24 | 2016-10-26 | 中铁隧道勘测设计院有限公司 | Reverse-building-method underground engineering building envelope crown beam anti-floating node |
-
2012
- 2012-11-26 CN CN 201220631262 patent/CN203096774U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943492A (en) * | 2012-11-26 | 2013-02-27 | 中铁第四勘察设计院集团有限公司 | Anti-floating structure for open trench tunnel |
| CN105625480A (en) * | 2016-03-16 | 2016-06-01 | 上海市城市建设设计研究总院 | Anti-floating method and structure for open-segment tunnel structure |
| CN106049538A (en) * | 2016-08-24 | 2016-10-26 | 中铁隧道勘测设计院有限公司 | Reverse-building-method underground engineering building envelope crown beam anti-floating node |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |