CN203925521U - A kind of shield tunnel bottom stratum consolidation channels configuration - Google Patents
A kind of shield tunnel bottom stratum consolidation channels configuration Download PDFInfo
- Publication number
- CN203925521U CN203925521U CN201420252981.4U CN201420252981U CN203925521U CN 203925521 U CN203925521 U CN 203925521U CN 201420252981 U CN201420252981 U CN 201420252981U CN 203925521 U CN203925521 U CN 203925521U
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- China
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- stratum
- shield tunnel
- pipe
- service sleeve
- grouting pipe
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Abstract
A kind of shield tunnel bottom stratum consolidation channels configuration, to realize shield tunnel using the object that all can carry out from shield tunnel inside prolonged and repeated grouting and reinforcing in life cycle management by this passage to stratum, shield tunnel bottom.It comprises: service sleeve, and at the prefabricated pipe section for shield tunnel lining cutting member being positioned at below railway roadbed absolute altitude, hoop interval arranges; Stratum Grouting Pipe, squeezes in stratum along each service sleeve; Grouting Pipe sleeve pipe, lower end is connected with service sleeve upper end, and railway roadbed absolute altitude is exposed in upper end.
Description
Technical field
This practical underground engineering structure class that newly relates to, relates in particular to a kind of shield tunnel bottom stratum consolidation channels configuration.
Background technology
Increasingly mature along with socioeconomic high speed development and tunneling technology, the proportion of tunnel scheme in field of traffic is also increasing, and Construction amount is also more and more.But in the time that tunnel structure is inevitably positioned at large-scale weak soil stratum (or liquefiable stratum), the inevitably physico-mechanical properties on deteriorated weak soil stratum, below, tunnel (or liquefiable stratum) of the long-term operation load in the tunnels such as track traffic, railway, highway, this will greatly endanger operation and the structural safety in tunnel undoubtedly.
For ensureing operation and the structural safety in tunnel, according to the engineering mechanical properties on weak soil stratum (or liquefiable stratum), the most direct effective measures are exactly, in tunnel operation process, prolonged and repeated grout and strengthen processing is carried out in tunnel bottom stratum.
Although tunnel bottom stratum is reinforced to a kind of selection of can yet be regarded as from earth's surface punching, but for a long time, on a large scale from earth's surface punching slip casting, need pay very large economic cost on the one hand, also will bring tremendous influence to earth's surface surrounding enviroment on the other hand, if the particular tunnel such as more river is over strait, basic just not from earth's surface (or river surface, sea) punching tunnel bottom is carried out to the possibility of grouting and reinforcing; Therefore from tunnel internal reserved passageway, grouting and reinforcing just can yet be regarded as a kind of good thinking and selection are carried out in stratum, shield tunnel bottom.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of shield tunnel bottom stratum consolidation channels configuration, all can carry out from shield tunnel inside the object of prolonged and repeated grouting and reinforcing to realize shield tunnel in use life cycle management to stratum, shield tunnel bottom by this passage.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
A kind of shield tunnel of the utility model bottom stratum consolidation channels configuration, is characterized in that it comprises: service sleeve, and at the prefabricated pipe section for shield tunnel lining cutting member being positioned at below railway roadbed absolute altitude, hoop interval arranges; Stratum Grouting Pipe, squeezes in stratum along each service sleeve; Grouting Pipe sleeve pipe, lower end is connected with service sleeve upper end, and railway roadbed absolute altitude is exposed in upper end.
The beneficial effects of the utility model are, in shield tunnel uses life cycle management, as required can be at any time from shield tunnel inside by later stage Grouting Pipe along Grouting Pipe sleeve pipe, in service sleeve insert into stratum Grouting Pipe, Grouting Pipe sleeve pipe, service sleeve and stratum Grouting Pipe form grouting and reinforcing passage, grouting and reinforcing is carried out in stratum, shield tunnel bottom, grouting and reinforcing by multiple shield tunnels bottom stratum consolidation passage to stratum, can successfully realize shield tunnel all can carry out from shield tunnel inside prolonged and repeated grouting and reinforcing in use life cycle management object to stratum, shield tunnel bottom.
Brief description of the drawings
This manual comprises following four width accompanying drawings:
Fig. 1 is a kind of shield tunnel bottom total schematic diagram of stratum consolidation channels configuration of the utility model and arranges schematic diagram;
Fig. 2 is that schematic diagram is arranged in the cross section of a kind of shield tunnel of the utility model bottom stratum consolidation channels configuration service sleeve in prefabricated pipe section for shield tunnel lining cutting;
Fig. 3 is the layout schematic diagram of a kind of shield tunnel of the utility model bottom stratum consolidation channels configuration service sleeve in prefabricated pipe section for shield tunnel lining cutting;
Fig. 4 is a kind of shield tunnel of the utility model bottom stratum consolidation channels configuration service sleeve structural representation;
Fig. 5 is stratum consolidation channels configuration stratum, the utility model a kind of shield tunnel bottom Grouting Pipe structural representation.
The title of member shown in figure and corresponding mark: service sleeve 11, upper internal thread segment 11a, lower extension 11b, non retern valve 11c; Stratum Grouting Pipe 21, injected hole 21a, drill bit 21b, grout spreading range R; Grouting Pipe sleeve pipe 31; Prefabricated pipe section lining cutting member A, ballast bed structure B, stratum C, railway roadbed absolute altitude K.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model feature is described in further detail.
Shield tunnel construction is assembled according to certain space principle by some prefabricated pipe section lining cutting member A, and ballast bed structure B cast in situs after shield tunnel construction completes forms.
With reference to Fig. 1, Fig. 2, a kind of shield tunnel of the utility model bottom stratum consolidation channels configuration, it comprises: service sleeve 11, be positioned at the prefabricated pipe section lining cutting member A below railway roadbed absolute altitude K, hoop interval arranges; Stratum Grouting Pipe 21, squeezes in the C of stratum along each service sleeve 11; Grouting Pipe sleeve pipe 31, lower end is connected with service sleeve 11 upper ends, and railway roadbed absolute altitude K is exposed in upper end.For highway tunnel, railway roadbed absolute altitude K is grade elevation.
In the time producing prefabricated pipe section lining cutting member A, according to the shield tunnel construction spatial relationship after assembled moulding, service sleeve 11 is embedded in the prefabricated pipe section lining cutting member A below railway roadbed absolute altitude K in advance.Tunnel lining structure completes assembling construction, and before ballast bed structure B construction, from shield tunnel construction inside, stratum Grouting Pipe 21 is squeezed in the C of stratum by service sleeve 11.Finally, before ballast bed structure B construction, Grouting Pipe sleeve pipe 31 is formed to effective connection with service sleeve 11, finally form shield tunnel bottom stratum consolidation passage.Grouting and reinforcing by multiple shield tunnels bottom stratum consolidation passage to stratum, can successfully realize shield tunnel using the object that all can carry out from tunnel internal prolonged and repeated grouting and reinforcing in life cycle management to tunnel bottom stratum.
With reference to Fig. 1 and Fig. 3, described service sleeve 11 is positioned on the ring width center line of prefabricated pipe section lining cutting member A in tunnel line direction, and pipe range and the grout spreading range R of the circumferential distance of service sleeve 11 and stratum Grouting Pipe 21 match.
Shown in Fig. 4 is a kind of typical structure of service sleeve 11, be that described service sleeve 11 is made up of upper internal thread segment 11a and lower extension 11b, it is upper that the lower end of Grouting Pipe sleeve pipe 31 is threadedly connected to internal thread segment 11a, and the upper port of stratum Grouting Pipe 21 is positioned at lower extension 11b.During for prevention slip casting, slurries generation adverse current, is provided with non retern valve 11c in described service sleeve 11, and this non retern valve 11c is by being threaded in upper internal thread segment 11a on its outer wall.
With reference to Fig. 5, stratum Grouting Pipe 21 is for squeezing in the C of stratum bottom, and the lower extension 11b of upper end and service sleeve 11 has overlapping on length direction, has enough strength and stiffness, its typical structure is that front end arranges drill bit 21b, and on tube wall, blossom type is laid injected hole 21a.
31 of Grouting Pipe sleeve pipes for thering is some strength and rigidity, interior diameter meets later stage Grouting Pipe by requiring, lower end is threaded with the internal thread segment 11a of service sleeve 11, railway roadbed absolute altitude K is exposed through ballast bed structure B in upper end, and can carry out the adjustment of local space position according to reinforcing bar in ballast bed structure B or other built-in fitting space requirements.
In shield tunnel uses life cycle management, as required can be at any time from shield tunnel inside by later stage Grouting Pipe along in Grouting Pipe sleeve pipe 31, service sleeve 11 insert into stratum Grouting Pipe 21, Grouting Pipe sleeve pipe 31, service sleeve 11 and stratum Grouting Pipe 21 form grouting and reinforcing passage, grouting and reinforcing is carried out in stratum, shield tunnel bottom, grouting and reinforcing by multiple shield tunnels bottom stratum consolidation passage to stratum, can successfully realize shield tunnel using the object that all can carry out from tunnel internal prolonged and repeated grouting and reinforcing in life cycle management to tunnel bottom stratum.
General principle and the way of a kind of shield tunnel of the above the utility model that just explains through diagrams bottom stratum consolidation channels configuration, be not the present invention to be confined to shown in and in described specific practice and parameter area, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (5)
1. a shield tunnel bottom stratum consolidation channels configuration, is characterized in that: it comprises, service sleeve (11) arranges at prefabricated pipe section lining cutting member (A) the hoop interval being positioned at below railway roadbed absolute altitude (K); Stratum Grouting Pipe (21), penetrates in stratum (C) along each service sleeve (11); Grouting Pipe sleeve pipe (31), lower end is connected with service sleeve (11) upper end, and railway roadbed absolute altitude (K) is exposed in upper end.
2. a kind of shield tunnel as claimed in claim 1 bottom stratum consolidation channels configuration, it is characterized in that: described service sleeve (11) is positioned on the ring width center line of prefabricated pipe section lining cutting member (A) in tunnel line direction, pipe range and the grout spreading range (R) of the circumferential distance of service sleeve (11) and stratum Grouting Pipe (21) match.
3. a kind of shield tunnel as claimed in claim 1 bottom stratum consolidation channels configuration, it is characterized in that: described service sleeve (11) is made up of upper internal thread segment (11a) and lower extension (11b), it is upper that the lower end of Grouting Pipe sleeve pipe (31) is threadedly connected to internal thread segment (11a), and the upper port of stratum Grouting Pipe (21) is positioned at lower extension (11b).
4. a kind of shield tunnel as claimed in claim 3 bottom stratum consolidation channels configuration, it is characterized in that: in described service sleeve (11), be provided with non retern valve (11c), this non retern valve (11c) is by being threaded in upper internal thread segment (11a) on its outer wall.
5. a kind of shield tunnel as claimed in claim 3 bottom stratum consolidation channels configuration, is characterized in that: the front end of described stratum Grouting Pipe (21) arranges drill bit (21b), and on tube wall, blossom type is laid injected hole (21a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420252981.4U CN203925521U (en) | 2014-05-16 | 2014-05-16 | A kind of shield tunnel bottom stratum consolidation channels configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420252981.4U CN203925521U (en) | 2014-05-16 | 2014-05-16 | A kind of shield tunnel bottom stratum consolidation channels configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925521U true CN203925521U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420252981.4U Expired - Fee Related CN203925521U (en) | 2014-05-16 | 2014-05-16 | A kind of shield tunnel bottom stratum consolidation channels configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925521U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488334A (en) * | 2018-10-25 | 2019-03-19 | 中铁第勘察设计院集团有限公司 | Deep hole grouting reinforcement means and equipment in shield tunnel |
| CN112901203A (en) * | 2020-09-09 | 2021-06-04 | 中铁二院工程集团有限责任公司 | Reinforcing structure and reinforcing method for peripheral stratum of shield and pipe-jacking tunnel |
-
2014
- 2014-05-16 CN CN201420252981.4U patent/CN203925521U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488334A (en) * | 2018-10-25 | 2019-03-19 | 中铁第勘察设计院集团有限公司 | Deep hole grouting reinforcement means and equipment in shield tunnel |
| CN112901203A (en) * | 2020-09-09 | 2021-06-04 | 中铁二院工程集团有限责任公司 | Reinforcing structure and reinforcing method for peripheral stratum of shield and pipe-jacking tunnel |
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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: 20141105 |