CN208310778U - A kind of shield launching transverse passage-way and unearthed tunnel plugging structure - Google Patents
A kind of shield launching transverse passage-way and unearthed tunnel plugging structure Download PDFInfo
- Publication number
- CN208310778U CN208310778U CN201820299137.5U CN201820299137U CN208310778U CN 208310778 U CN208310778 U CN 208310778U CN 201820299137 U CN201820299137 U CN 201820299137U CN 208310778 U CN208310778 U CN 208310778U
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- China
- Prior art keywords
- transverse passage
- way
- tunnel
- unearthed
- shield launching
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Links
- 238000009412 basement excavation Methods 0.000 claims abstract description 9
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 3
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 241000196133 Dryopteris Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a kind of shield launching transverse passage-way and unearthed tunnel plugging structures, including anchor tube, the inside and outside double-deck mesh sheet and closure grid, shield launching transverse passage-way thickness 350mm, and be unearthed tunnel thickness 300mm, and the inside and outside double-deck mesh sheet is arranged, and closure grid isThe double-deck mesh sheet inside and outside 22 500 dowels, blocks and sets 40 × 2.75 anchor tube of Ф inside grid, L=2m, spacing 1m is quincunx to be laid in each layer pilot tunnel top bar；Transverse passage-way, which is excavated, is constructed using CRD and unearthed tunnel excavation using CD method, therefore each pilot tunnel will successively reach design terminal mileage according to pilot drive sequence, and each pilot tunnel should be blocked respectively, and step is simple, design is reasonable and easy for construction, and investment construction cost is lower；Simple structure and reasonable design and easy for construction, it is lower to put into construction cost, the shield launching transverse passage-way of construction molding and unearthed tunnel structure using effect is good and supporting status safety, reliable, permanently blocks after can ensure that shield launching transverse passage-way and unearthed tunnel excavation to design mileage.
Description
Technical field
The utility model relates to technical field of tunnel construction, specifically a kind of shield launching transverse passage-way and unearthed tunnel are blocked
Structure.
Background technique
Subway tunnel is constructed for cut and cover method using shallow burial hidden digging, has that removal cost is low, traffic impact is small
The advantages that, relative to shield construction, there is stronger adaptability to stratum, be suitable for various sectional forms, there is low cost, throw
Enter the advantages that small.As China carries out Construction of Urban Rail Traffic on a large scale, Dryopteris sublaetaChing et Hsu is constructed in city underground engineering
In status will be further important, the especially construction technology of bored tunnel passing through building, structures need to control into hole tunnel
Stability indicator and ground settlement figureofmerit.
It is blocked after transverse passage-way (unearthed tunnel) is excavated to design mileage, this time blocks and blocked to be permanent, currently,
When shield launching widened section is excavated using the construction of CRD method, need to block each pilot tunnel respectively, and pre-buried company as requested
Connect muscle.Therefore, it is necessary to a kind of shield launching widened section plugging structures to meet the construction demand permanently blocked.
Utility model content
The purpose of this utility model is to provide a kind of shield launching transverse passage-way and unearthed tunnel plugging structures, on solving
State the problem of proposing in background technique.
To achieve the above object, the utility model provides the following technical solutions:
A kind of shield launching transverse passage-way and unearthed tunnel plugging structure, including anchor tube, the inside and outside double-deck mesh sheet and closure grid,
Shield launching transverse passage-way thickness 350mm, be unearthed tunnel thickness 300mm, and the inside and outside double-deck mesh sheet is arranged, and closure grid is diameter With length 500mm dowel in the inside and outside double-deck setting, blocks and set diameter Ф 40mm and length 2.75m anchor inside grid
Pipe, anchor tube, which is set, gos deep into length L=2m, and spacing 1m is quincunx to be laid in each layer pilot tunnel top bar.
As a further solution of the present invention: the shield launching transverse passage-way is sealed after being excavated to design mileage
It is stifled, it this time blocks and is blocked to be permanent.
As a further solution of the present invention: being blocked after the unearthed tunnel excavation to design mileage, this time
It blocks and is blocked to be permanent.
As a further solution of the present invention: the shield launching section is temporarily sealed after being excavated to design mileage
It is stifled, it is blocked by glass fiber-reinforced polymer, inside and outside double layer bar, thickness 600mm is set.
Compared with prior art, the utility model has the beneficial effects that transverse passage-way, which excavates, uses CRD and unearthed tunnel excavation
Constructed using CD method, therefore each pilot tunnel will successively reach design terminal mileage according to pilot drive sequence, each pilot tunnel should respectively into
Row blocks, and step is simple, design is reasonable and easy for construction, and investment construction cost is lower；Simple structure and reasonable design and construction party
Just, investment construction cost is lower, the shield launching transverse passage-way of construction molding and unearthed tunnel structure using effect is good and supporting shape
State is safe and reliable, permanently blocks after can ensure that shield launching transverse passage-way and unearthed tunnel excavation to design mileage.
Detailed description of the invention
Fig. 1 is that the unearthed tunnel of the utility model blocks schematic diagram.
Fig. 2 is the anchor tube structural schematic diagram that unearthed tunnel blocks in the utility model.
Fig. 3 is that the transverse passage-way of the utility model blocks schematic diagram.
Fig. 4 is the anchor tube structural schematic diagram that transverse passage-way blocks in the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~4, in the utility model embodiment, a kind of shield launching transverse passage-way and unearthed tunnel plugging structure,
Including anchor tube, the inside and outside double-deck mesh sheet and grid is blocked, shield launching transverse passage-way is blocked after being excavated to design mileage, is this time sealed
It blocks up permanently to block, thickness 350mm, the inside and outside double-deck mesh sheet is set, blocks grid and uses diameterWith length 500mm
Dowel blocks in the inside and outside double-deck setting and sets diameter Ф 40mm and length 2.75m anchor tube inside grid, anchor tube sets deep length
L=2m is spent, spacing 1m is quincunx to be laid in each layer pilot tunnel top bar.
The tunnel excavation that is unearthed is blocked to after designing mileage, is this time blocked as permanent closure, thickness 300mm.
It is constructed using CRD and unearthed tunnel excavation using CD method since transverse passage-way is excavated, each pilot tunnel will be according to pilot tunnel
Sequence of excavation successively reaches design terminal mileage, and each pilot tunnel should be blocked respectively, but should pre-buried dowel as requested, connection
Muscle gets rid of length and meets welding conditions requirement, welds and uses for adjacent pilot tunnel dowel.
Further, shield launching section carries out temporary plugging after being excavated to design mileage, is blocked using glass fiber-reinforced polymer, if
Set inside and outside double layer bar, thickness 600mm.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some simple modification, equivalent change and modifications, is all within the scope of the technical scheme of the utility model.
Claims (4)
1. a kind of shield launching transverse passage-way and unearthed tunnel plugging structure, including anchor tube, the inside and outside double-deck mesh sheet and closure grid,
It is characterized in that, shield launching transverse passage-way thickness 350mm, be unearthed tunnel thickness 300mm, and the inside and outside double-deck mesh sheet is arranged, blocks grid
For diameterWith length 500mm dowel in the inside and outside double-deck setting, blocks and set diameter Ф 40mm and length inside grid
2.75m anchor tube, anchor tube, which is set, gos deep into length L=2m, and spacing 1m is quincunx to be laid in each layer pilot tunnel top bar.
2. a kind of shield launching transverse passage-way according to claim 1 and unearthed tunnel plugging structure, which is characterized in that described
Shield launching transverse passage-way is blocked after being excavated to design mileage, is this time blocked and is blocked to be permanent.
3. a kind of shield launching transverse passage-way according to claim 1 and unearthed tunnel plugging structure, which is characterized in that described
The tunnel excavation that is unearthed is blocked to after designing mileage, is this time blocked as permanent closure.
4. a kind of shield launching transverse passage-way according to claim 1 and unearthed tunnel plugging structure, which is characterized in that described
Shield launching section carries out temporary plugging after being excavated to design mileage, is blocked by glass fiber-reinforced polymer, and inside and outside double layer bar is arranged,
Thickness 600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299137.5U CN208310778U (en) | 2018-03-05 | 2018-03-05 | A kind of shield launching transverse passage-way and unearthed tunnel plugging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299137.5U CN208310778U (en) | 2018-03-05 | 2018-03-05 | A kind of shield launching transverse passage-way and unearthed tunnel plugging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208310778U true CN208310778U (en) | 2019-01-01 |
Family
ID=64720387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820299137.5U Expired - Fee Related CN208310778U (en) | 2018-03-05 | 2018-03-05 | A kind of shield launching transverse passage-way and unearthed tunnel plugging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208310778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080296A (en) * | 2019-04-29 | 2019-08-02 | 中铁四局集团有限公司 | A kind of unilateral glass muscle-reinforcement cage structure for tunnel shielding portal ground-connecting-wall |
-
2018
- 2018-03-05 CN CN201820299137.5U patent/CN208310778U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080296A (en) * | 2019-04-29 | 2019-08-02 | 中铁四局集团有限公司 | A kind of unilateral glass muscle-reinforcement cage structure for tunnel shielding portal ground-connecting-wall |
| CN110080296B (en) * | 2019-04-29 | 2021-02-02 | 中铁四局集团有限公司 | A unilateral glass muscle-steel reinforcement cage structure for shield tunnel portal ground is wall even |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190101 |