CN209398426U - A kind of tunnel structure - Google Patents
A kind of tunnel structure Download PDFInfo
- Publication number
- CN209398426U CN209398426U CN201822047524.2U CN201822047524U CN209398426U CN 209398426 U CN209398426 U CN 209398426U CN 201822047524 U CN201822047524 U CN 201822047524U CN 209398426 U CN209398426 U CN 209398426U
- Authority
- CN
- China
- Prior art keywords
- arch
- grillage
- shaped steel
- slip casting
- massif
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 238000007569 slipcasting Methods 0.000 claims abstract description 31
- 210000001015 abdomen Anatomy 0.000 claims abstract description 10
- 239000011378 shotcrete Substances 0.000 claims abstract description 9
- 210000003205 muscle Anatomy 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 9
- 239000002689 soil Substances 0.000 description 6
- 239000004567 concrete Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a kind of tunnel structures.A kind of tunnel structure, it includes shield arch, slip casting ductule, massif side slope, face upward slope spray anchor protection structure, shield arch includes the grillage positioned inside, shaped steel arch on the outside of grillage, two layers of shotcrete layer outside shaped steel arch and in grillage, grillage is connected by longitudinally connected muscle by several Pin arches with shaped steel arch and is formed, slip casting ductule is two layers, one layer of slip casting ductule therein is connected with 10 °~15 ° outer limbs with massif forwards from the abdomen of shaped steel arch, and its tail end and shaped steel arch are welded to connect, another layer of slip casting ductule is connected with 10 °~15 ° outer limbs with massif forwards from the abdomen of grillage, and its tail end and grillage are welded to connect.The utility model, which can reduce, disturbs massif, reduces construction risk, shield arch and massif being linked together it is common resist load, effectively control deformation, it can be achieved that it is safe and efficient, quickly into hole.
Description
Technical field
The utility model relates to a kind of tunnel structures, are mainly used in loess tunnel start tunneling, belong to tunnel and apply
Work technical field.
Background technique
Conventional tunnel, which is constructed, mostly uses guiding wall cooperation lead pipe-shed support measure into hole, main to cut force balance using drawing
Principle, strong to massif self stability dependence, the period is long, at high cost, and disturbance is big.For loess tunnel, due to soil structure
Loosely, there is collapsibility, self-stable ability is poor, meets water, construction disturbance easy disintegrating, collapses, shallow embedding, bias complicated geological item are met in tunnel
Part start tunneling dangerous.
Summary of the invention
In view of the above defects of the prior art, the utility model provide one kind be particularly suitable for loess tunnel into
The tunnel structure of hole construction.
The utility model adopts the following technical solution: a kind of tunnel structure, it is characterized in that: including the shield of open cut tunnel formula
Arch, slip casting ductule, massif side slope face upward slope spray anchor protection structure, and the shield arch includes positioned at the grillage of inside, positioned at institute
State the shaped steel arch on the outside of grillage, two layers of injection outside the shaped steel arch and in the grillage mixes
Solidifying soil layer 1.The grillage is connected by longitudinally connected muscle by several Pin arches with the shaped steel arch and is formed.The lattice
Grid arch is reinforcement fabrication, and the shaped steel arch is to be made of I-steel, and longitudinally connected muscle uses reinforcing bar.The slip casting is small to be led
Pipe is two layers, one layer of slip casting ductule therein from the abdomen of the shaped steel arch forwards with 10 °~15 ° outer limbs and
Massif is connected, and its tail end and the shaped steel arch are welded to connect, and another layer slip casting ductule is from the grillage
Abdomen is connected with 10 °~15 ° outer limbs with massif forwards, and its tail end and the grillage are welded to connect.
In the utility model, shield arch structure intensity is high, can resist biggish load, slip casting ductule rear end and shield arch arch
Welding, massif is squeezed into front end can be connected as an entirety for massif and shield arch, shield arch can be common with massif by slip casting in the later period
Load is resisted, effectively control deformation is protected using open cut tunnel formula and encircleed, and arch, which is installed, gunite concrete is convenient outside hole applies, can be real
It is existing it is safe and efficient, quickly into hole.
Further, there are enough bearing capacitys to guarantee to protect arch footing, top transmitting load can be resisted and do not sunk
Drop is toppled, and Pin is provided with grouting steel pipe pile in shield arch bottom, the grouting steel pipe pile lower end is goed deep into rock stratum, the note
The arch springing of the upper end and the shaped steel arch of starching steel-pipe pile is welded to connect.
Further, be reinforce steel-pipe pile whole stressed effect, resist shield arch horizontal displacement, the grouting steel pipe pile it
Between connect and be connected as one by seamless steel pipe horizontal welding.
The beneficial effects of the utility model are: the shield arch structure intensity in the utility model is high, biggish load can be resisted,
Slip casting ductule rear end and shield arch arch welding, front end are squeezed into massif and can be connected as massif and shield arch by slip casting in the later period
One entirety, shield arch can resist load with massif jointly, and effectively control deformation is protected using open cut tunnel formula and encircleed, and arch installation, injection are mixed
Solidifying soil is convenient outside hole to be applied.When being constructed using the utility model, massif is disturbed small, ensure that the globality of country rock and steady
It is qualitative, construction risk can be reduced；It is protected and is encircleed using open cut tunnel formula, shield arch section is applied using cut and cover method, and arch installation, gunite concrete are equal
It is convenient outside hole to apply, can accelerate construction progress, effectively shorten the duration, it can be achieved that it is safe and efficient, quickly into hole.
Detailed description of the invention
Fig. 1 is the profilograph in specific embodiment of the present invention；
Fig. 2 is the main view in specific embodiment of the present invention；
In figure, 1, shotcrete layer, 2, shaped steel arch, 3, grillage, 4, slip casting ductule, 5, spray anchor protection knot
Structure, 6, Core Soil, 7, massif, 8, grouting steel pipe pile, 9, the longitudinally connected muscle of shaped steel arch, 10, seamless steel pipe.
Specific embodiment
The utility model is further described below by non-limiting embodiment and in conjunction with attached drawing:
As shown in the picture, a kind of tunnel structure comprising the shield of open cut tunnel formula is encircleed, slip casting ductule 4, massif side slope,
Face upward slope spray anchor protection structure 5.The shield arch includes the grillage 3 positioned inside, the fashioned iron positioned at 3 outside of grillage
Arch 2, two layers of shotcrete layer 1 outside the shaped steel arch 2 and in the grillage 3.The grid
Arch 3 is connected by longitudinally connected muscle by several Pin arches with the shaped steel arch 2 and is formed.The grillage is reinforcing bar system
Make, the shaped steel arch is to be made of I-steel, and longitudinally connected muscle uses reinforcing bar.The slip casting ductule 4 is two layers, wherein
One layer of slip casting ductule 4 be connected forwards with 10 °~15 ° outer limbs with massif 7 from the abdomen of the shaped steel arch 2,
And its tail end and the shaped steel arch 2 are welded to connect, another layer slip casting ductule 4 from the abdomen of the grillage 3 to
Front is connected with 10 °~15 ° outer limbs with massif 7, and its tail end and the grillage 3 are welded to connect.
For guarantee protect arch footing have enough bearing capacitys, can resist top transmitting load do not occur sedimentation topple,
Shield arch bottom is provided with grouting steel pipe pile 8 by Pin, and 8 lower end of grouting steel pipe pile is goed deep into rock stratum, the slip casting steel pipe
The upper end of stake 8 and the arch springing of the shaped steel arch 2 are welded to connect.The grouting steel pipe pile 8 is quincunx using arranging on steel pipe
After the seamless steel pipe of injected hole gos deep into rock stratum, by into steel pipe slip casting formed, be the prior art.
For the whole stressed effect for reinforcing steel-pipe pile, shield arch horizontal displacement is resisted, passes through nothing between the grouting steel pipe pile 8
Seam 10 horizontal welding of steel pipe, which connects, to be connected as one.Grouting steel pipe pile and the shield integral force structure of arch, can be improved tunnel knot
The whole stressed effect of structure.
The construction method of the utility model is: first at tunneling mountain body entrance to tunnel vault, reserving tunnel cross-section
The Core Soil 6 of shape；Spray anchor protection massif side slope faces upward domatic into spray anchor protection structure 5；It is branch with Core Soil 6 after excavation outside hole
Simultaneously grouting steel pipe pile 8 is arranged by Pin in shield arch bottom in support construction grillage 3 and shaped steel arch 2.In construction grillage 3 and type
When steel arch-shelf 2, has a common boundary in light and shade be close to scar Zhi Liyi Pin arch first, connect and position, wherein the shaped steel arch 2 in outside
Arch springing is installed on the top of grouting steel pipe pile 8 and effectively welds with grouting steel pipe pile.Outside shaped steel arch is according to slip casting ductule 4
Distributing position in web set pilot hole in advance.The double-deck slip casting ductule 4 is applied later and is infused by slip casting ductule 4
Slurry processing, when applying the double-deck slip casting ductule 4, two layers of slip casting ductule 4 is respectively from 3 abdomen of 2 abdomen of shaped steel arch and grillage
Portion squeezes into massif forwards with 10 °~15 ° outer limbs, by 4 slip casting of slip casting ductule after the completion respectively by slip casting ductule 4
Tail portion and corresponding arch firm welding；Arch sequentially is installed by Pin after first Pin arch construction, first outside behind inside, utilizes
Longitudinally connected muscle connection is integral；Then shotcrete layer 1 is formed to shield arch gunite concrete；Shield arch gunite concrete is completed
Afterwards, back-pressure backfill is carried out to free face, the original landforms of drop-over improve drainage system.
Other parts in the present embodiment are the prior art, and details are not described herein.
Claims (3)
1. a kind of tunnel structure, it is characterized in that: including the shield arch of open cut tunnel formula, slip casting ductule (4), massif side slope faces upward slope
Spray anchor protection structure (5), the shield arch include the grillage (3) positioned inside, the type on the outside of the grillage (3)
Steel arch-shelf (2) is located at two layers of shotcrete layer that the shaped steel arch (2) are external and are located in the grillage (3)
(1), the grillage (3) is connected by several Pin arches by longitudinally connected muscle with the shaped steel arch (2) forms, described
Slip casting ductule (4) is two layers, one layer of slip casting ductule (4) therein from the abdomen of the shaped steel arch (2) forwards
It is connected with 10 °~15 ° outer limbs with massif (7), and its tail end and the shaped steel arch (2) are welded to connect, another layer note
Slurry ductule (4) is connected with 10 °~15 ° outer limbs with massif (7) forwards from the abdomen of the grillage (3), and its tail
End is welded to connect with the grillage (3).
2. tunnel structure according to claim 1, it is characterized in that: being provided with slip casting steel by Pin in shield arch bottom
Tubular pole (8), grouting steel pipe pile (8) lower end are goed deep into rock stratum, the upper end of the grouting steel pipe pile (8) and the shaped steel arch
(2) arch springing is welded to connect.
3. tunnel structure according to claim 2, it is characterized in that: by seamless between the grouting steel pipe pile (8)
Steel pipe horizontal welding, which connects, to be connected as one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822047524.2U CN209398426U (en) | 2018-12-07 | 2018-12-07 | A kind of tunnel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822047524.2U CN209398426U (en) | 2018-12-07 | 2018-12-07 | A kind of tunnel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209398426U true CN209398426U (en) | 2019-09-17 |
Family
ID=67881916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822047524.2U Expired - Fee Related CN209398426U (en) | 2018-12-07 | 2018-12-07 | A kind of tunnel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209398426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538236A (en) * | 2018-12-07 | 2019-03-29 | 中铁十局集团有限公司 | A kind of tunnel structure and tunnel construction method |
-
2018
- 2018-12-07 CN CN201822047524.2U patent/CN209398426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538236A (en) * | 2018-12-07 | 2019-03-29 | 中铁十局集团有限公司 | A kind of tunnel structure and tunnel construction method |
| CN109538236B (en) * | 2018-12-07 | 2024-04-02 | 中铁十局集团有限公司 | Tunnel entering structure and tunnel entering construction method |
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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: 20190917 |