CN205618173U - Slip casting pipe is backfilled to tunnel vault - Google Patents
Slip casting pipe is backfilled to tunnel vault Download PDFInfo
- Publication number
- CN205618173U CN205618173U CN201620282246.7U CN201620282246U CN205618173U CN 205618173 U CN205618173 U CN 205618173U CN 201620282246 U CN201620282246 U CN 201620282246U CN 205618173 U CN205618173 U CN 205618173U
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- Prior art keywords
- slip casting
- tunnel
- tunnel vault
- grouting pipe
- vault
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Abstract
The utility model relates to a slip casting pipe is backfilled to tunnel vault, the global design is the taper structure, thick liquid import A's cross -sectional area is 1.5~2.0 times of thick liquid export B cross -sectional area, can be when the slip casting operation the effectual osmotic pressure of establishhing fast to be favorable to entire system's pressure stability, improve slip casting efficiency, reduce the slip casting number of times at same slip casting point. Simultaneously, the characteristics according to the slip casting of tunnel secondary lining vault set up rectangular pipe 4 inside the body to manage global design in line shape or arc with slip casting, the different radian requirements of satisfying the tunnel vault that can be fine, phenomenon such as avoid appearing droing.
Description
Technical field
This utility model relates to grouting equipment technical field, is specifically related to a kind of tunnel vault backfill Grouting Pipe.
Background technology
Tunnel vault backfill slurry injection technique is the one of slurry injection technique, including:
1, per-fore pouring liquid with small pipe technology
It is characterized in: construction technology is simple, working space requires less, arrangement and method for construction to adjust at any time and the significant feature such as economic benefit, ductule is mainly used in the pre-pouring grout of stratum, the mechanical property of country rock can be changed, improve the mechanics parameter of country rock, be conventional a kind of grouting mode；
2, tunneling boring curtain grouting technology
It is characterized in: surrounding rock in excavation crushes, and when water yield is bigger, uses periphery pre-pouring grout, by wall rock grouting, form wall rock grouting consolidation, reduce its infiltration coefficient, improve self, and safety stable with preliminary bracing common guarantee construction period cavern.This technology is just applied at Geleshan Tunnel；
3, steel tube shed
Lead pipe-shed support is along excavation contour line, the boring that Drilling is parallel with tunnel axis, then inserts steel pipe, and slip casting in pipe, the country rock of consolidation steel pipe periphery, and forms the support system of frame in predetermined scope.Its Main Function is to improve the shearing strength of country rock around steel pipe, and makes steel pipe integrated with country rock, piperoof-support system transfer front soil body load, leading supporting country rock.The general employing when entrance construction.In the tunnel that buried depth is little, when there is building surface, it is possible to use this method.
Slurry injection technique at underground structure antiseepage, foundation ditch strengthening, prevent the aspects such as surface subsidence, built structures basement process, push pipe antifriction jacking from playing an important role.For tunnel engineering, slip casting has a packing action, reinforcement effect and subtract the effect of oozing.But the intensity of tradition Grouting Pipe and grouting pressure are less than normal, the shape of Grouting Pipe also tends to fit very well the radian of tunnel vault, the problem such as cause slip casting effect poor, easy to fall off, generally requires and a slip casting point is carried out repeatedly grouting operation can be only achieved promising result, inefficiency.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, this utility model provides tunnel vault backfill Grouting Pipe, feature according to tunnel secondary lining vault slip casting arranges rectangular tube at tubular body, and Grouting Pipe global design is in line shape or arc, the different radian requirements of tunnel vault can well be met, it is to avoid phenomenons such as coming off occurs；Meanwhile, Grouting Pipe is designed to the conical pipe that the cross-sectional area of slurry inlet is big compared with serum outlet cross-sectional area, slip casting efficiency can be greatly improved.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of tunnel vault backfill Grouting Pipe, vault for tunnel secondary lining backfills slip casting, including body, reinforce overcoat, slurry inlet, serum outlet and injected hole, described slurry inlet and serum outlet lay respectively at the two ends of body, described injected hole is evenly distributed on body, described sealing strip covers on injected hole, described reinforcing overcoat envelopes sealing strip, described body is taper tubular structure, described taper tubular inside configuration is provided with rectangular tube, the sidewall of described rectangular tube is provided with some through holes, the cross-sectional area of described slurry inlet is 1.5～2.0 times of serum outlet cross-sectional area.
Improving further as this utility model, described taper tubular structure is linear.
Improving further as this utility model, described taper tubular structure is arc.
Improving further as this utility model, the material of described rectangular tube is politef.
Improving further as this utility model, the material of described taper tubular structure is rustless steel or rubber.
Improving further as this utility model, described rectangular tube is and the conial tube of taper tubular structure matching.
Due to the utilization of technique scheme, this utility model compared with prior art has the advantage that
The tunnel vault backfill Grouting Pipe of this utility model scheme, feature according to tunnel secondary lining vault slip casting arranges rectangular tube at tubular body, and Grouting Pipe global design is in line shape or arc, the different radian requirements of tunnel vault can well be met, it is to avoid phenomenons such as coming off occurs；Meanwhile, Grouting Pipe is designed to the conical pipe that the cross-sectional area of slurry inlet is big compared with serum outlet cross-sectional area, slip casting efficiency can be greatly improved.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings technical solutions of the utility model are described further:
Accompanying drawing 1 is the oblique view of tunnel vault of the present utility model backfill Grouting Pipe；
Accompanying drawing 2 is the arcuation appearance schematic diagram of tunnel vault of the present utility model backfill Grouting Pipe.
In figure: 1, reinforce overcoat；2, sealing strip；3, slurry outlet；4, rectangular tube；5, through hole；6, taper tubular structure；A, slurry inlet；B, serum outlet.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
Tunnel vault described in the utility model backfill Grouting Pipe as shown in accompanying drawing 1 to Fig. 2, global design is cone structure, the cross-sectional area of slurry inlet A is 1.5～2.0 times of serum outlet B cross-sectional area, it is preferably 2.0 times, osmotic pressure can be set up fast and effectively when slip casting operation, and the pressure stability of beneficially whole system, improve slip casting efficiency, reduce the slip casting number of times at same slip casting point.Meanwhile, according to the feature of tunnel secondary lining vault slip casting, rectangular tube 4, and Grouting Pipe global design be in line shape or arc are set at tubular body, the different radian requirements of tunnel vault can well be met, it is to avoid phenomenons such as coming off occurs.
For achieving the above object, the taper tubular structure 6 of above-mentioned tunnel vault backfill Grouting Pipe is linear or arc.
Further, for improving the intensity of above-mentioned tunnel vault backfill Grouting Pipe, the material of rectangular tube 4 is politef.
Further, the material of taper tubular structure 6 is rustless steel or rubber.
Further, rectangular tube 4 is the conial tube mated with taper tubular structure 6.
Below it is only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, within the scope of all falling within this utility model rights protection.
Claims (6)
1. a tunnel vault backfill Grouting Pipe, vault for tunnel secondary lining backfills slip casting, including body, reinforce overcoat, sealing strip, slurry inlet, serum outlet and injected hole, described slurry inlet and serum outlet lay respectively at the two ends of body, described injected hole is evenly distributed on body, described sealing strip covers on injected hole, described reinforcing overcoat envelopes sealing strip, it is characterized in that: described body is taper tubular structure, described taper tubular inside configuration is provided with rectangular tube, the sidewall of described rectangular tube is provided with some through holes, the cross-sectional area of described slurry inlet is 1.5～2.0 times of serum outlet cross-sectional area.
Tunnel vault the most according to claim 1 backfill Grouting Pipe, it is characterised in that: described taper tubular structure is linear.
Tunnel vault the most according to claim 1 backfill Grouting Pipe, it is characterised in that: described taper tubular structure is arc.
Tunnel vault the most according to claim 1 backfill Grouting Pipe, it is characterised in that: the material of described rectangular tube is politef.
Tunnel vault the most according to claim 1 backfill Grouting Pipe, it is characterised in that: the material of described taper tubular structure is rustless steel or rubber.
6. backfill Grouting Pipe according to the tunnel vault described in claim 1 or 4, it is characterised in that: described rectangular tube is and the conial tube of taper tubular structure matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620282246.7U CN205618173U (en) | 2016-04-06 | 2016-04-06 | Slip casting pipe is backfilled to tunnel vault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620282246.7U CN205618173U (en) | 2016-04-06 | 2016-04-06 | Slip casting pipe is backfilled to tunnel vault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618173U true CN205618173U (en) | 2016-10-05 |
Family
ID=57029078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620282246.7U Expired - Fee Related CN205618173U (en) | 2016-04-06 | 2016-04-06 | Slip casting pipe is backfilled to tunnel vault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985047A (en) * | 2019-12-31 | 2020-04-10 | 盾构及掘进技术国家重点实验室 | Device and method for protecting pre-buried line concentration and structure in shield segment |
-
2016
- 2016-04-06 CN CN201620282246.7U patent/CN205618173U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985047A (en) * | 2019-12-31 | 2020-04-10 | 盾构及掘进技术国家重点实验室 | Device and method for protecting pre-buried line concentration and structure in shield segment |
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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: 20161005 Termination date: 20190406 |