CN106638509A - Tunnel structure capable of reducing side slope excavation and construction method thereof - Google Patents
Tunnel structure capable of reducing side slope excavation and construction method thereof Download PDFInfo
- Publication number
- CN106638509A CN106638509A CN201710003852.XA CN201710003852A CN106638509A CN 106638509 A CN106638509 A CN 106638509A CN 201710003852 A CN201710003852 A CN 201710003852A CN 106638509 A CN106638509 A CN 106638509A
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- tunnel
- side slope
- slope
- concrete
- construction
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- 238000010276 construction Methods 0.000 title claims abstract description 33
- 238000009412 basement excavation Methods 0.000 title claims abstract description 14
- 239000004567 concrete Substances 0.000 claims abstract description 37
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract 3
- 239000002689 soil Substances 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000011835 investigation Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011178 precast concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a tunnel structure capable of reducing side slope excavation and a construction method thereof, wherein the tunnel structure comprises a tunnel body intersected with a side slope, a vertically arranged concrete retaining wall is arranged on the side wall, close to the side slope, of the tunnel body, and a reinforced concrete cover arch matched with the arch crown of the tunnel body is arranged at the top of the concrete retaining wall; the construction method comprises the steps of site investigation, construction preparation, construction of a semi-open tunnel, construction of a semi-hidden tunnel, support and the like. The invention adopts the semi-hidden and semi-exposed tunnel to solve the problem of environmental damage caused by large-scale side slope excavation, and compared with the traditional method, the method changes passive mode into active mode, shortens the construction period and improves the engineering benefit.
Description
Technical field
The present invention relates to tunnel and its technical field of construction, and in particular to a kind of tunnel structure that can reduce slope excavating and
Its construction method.
Background technology
In Hydraulic and Hydro-Power Engineering construction and running, most of power stations are located at mountain area, in highway geometry, tunnel axle
In the case of line adjustment difficulty, Shang Ba highways and Chang Nei highways during excavating or biasing serious tunnel mouth hanging, unavoidable shape
Excavate into Slope with multi-step, then need to carry out dam public affairs in excavation formation in side slope position in the case of originally excavation circuit is unalterable
Road Huo Changnei highways, when side slope position is excavated, traditional scheme is by all cubic meters of wholes of predetermined excavation position
Excavate, form Shang Ba highway Huo Changnei highways builds space, then the slope after excavation is carried out into supporting, severe is excavated not only
A large amount of original vegetation can be destroyed, high slope rockmass is also thus brought, construction fussy degree is increased, and has delayed the duration, together
When also increase investment.For medium and small project, slope excavating is reduced, investment reduction and the problem of reduction of erection time increasingly cause
How the attention of people, take maximally effective processing scheme both to have met requirement of engineering, and ring water guaranteed request can be met again, becomes
One of passive problem actively, to be the consideration of designer's emphasis, but do not have corresponding technical scheme in prior art.
The content of the invention
The present invention is intended to provide a kind of tunnel structure and its construction method that can reduce slope excavating, to solve existing Li Shui
Electrical engineering build in Slope with multi-step existing difficulty of construction is big when excavating, construction period length, construction investment are big, vegetation deterioration is tight
The problems such as weight.
The present invention is achieved by following technical solution：
A kind of tunnel structure that can reduce slope excavating, including the tunnel body intersected with side slope, tunnel body is near side
The side wall on slope is provided with the concrete guard wall of vertical arrangement, and concrete guard wall top is provided with the reinforcing bar matched with tunnel body vault
Concrete jacket encircles.
The tunnel body vault is provided with horizontal and vertical side slope slip casting solidification anti-skid structure.
The tunnel inner body wall is provided with the reinforced concrete lining layer layer fitted with it.
The tunnel body outer wall is provided with the steelframe fitted with it and supports.
The concrete guard wall bottom is provided with some friction piles.
Insert concrete guard wall in the friction pile top.
The construction method of the above-mentioned tunnel structure that can reduce slope excavating is comprised the following steps：
A, the tunnel mouth hanging position big to High Side Slope of Highway section, bias in upper dam High Side Slope of Highway section, field are surveyed
Examine, determine the construction location of side slope and formulate construction plan, be ready for construction equipment；
B, the side slope to construction location are cleared up, and are removed vegetation and are excavated out barricade casting space；
C, friction pile is set below barricade casting space, friction pile is poured in place concrete structure or precast concrete
Structure；
D, lay above friction pile and backplate and pour out concrete guard wall, concrete guard wall inwall is vertically, outer wall inclines；
E, concrete guard wall lay reinforcing bar after meeting age at the top of it, then pour out and match with tunnel body vault
Reinforced concrete soil suite arch；
F, the longitudinal grouting tube for being inserted into some longitudinal directions and being spaced apart in side slope, longitudinal grouting tube is according to tunnel sheet
Body vault radian is arranged；
If G, the insertion dried layer horizontal grouting tube perpendicular with longitudinal grouting tube above longitudinal grouting tube；
H, respectively cement mortar injected into side slope by longitudinal grouting tube and horizontal grouting tube；
I, the concrete slurry of injection side slope and reinforced concrete soil suite arch meet tunnel excavation body after age, tunnel excavation
Being supported using steelframe while body carries out first liner timbering；
In steelframe stayed surface pouring reinforcement concrete lining cutting after the completion of J, first liner timbering, reinforced concrete lining layer has been laid
Into after.
The spacing of the friction pile is 3m.
The invention has the beneficial effects as follows：
Compared with prior art, what the present invention was provided can reduce the tunnel structure and its construction method of slope excavating, adopt
Hazy tunnel structure form, in the case of Shang Ba highways, Chang Nei highways, tunnel mouth hanging equal-pitch contour difficulty, by upper
The positions such as the dam highway inner side tunnel mouth hanging serious compared with high slope section, bias compared with high slope section, Chang Nei highways inner side, are arranged
Hazy tunnel structure, reduces excavation and the supporting of side slope, and then guarantees the safety of highway communication or tunnel mouth hanging.Solve
The environmental disruption problem that extensive excavation slope is brought, changes from passive to active compared with conventional method, shortens the construction period,
Improve project benefit.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure：1- friction piles, 2- concrete guard walls, 3- reinforced concretes soil suite arch, the horizontal grouting tubes of 4-, 5- steelframes
Support, 6- reinforced concrete lining layer layers, 7- longitudinal directions grouting tube, 8- side slopes, 9- tunnel bodies.
Specific embodiment
Technical scheme is described further below in conjunction with drawings and Examples, but required protection domain
It is not limited to described；
As shown in figure 1, the tunnel structure that can reduce slope excavating that the present invention is provided, including the tunnel intersected with side slope 8
Body 9, tunnel body 9 is provided with the concrete guard wall 2 of vertical arrangement near the side wall of side slope 8, the top of concrete guard wall 2 be provided with
The reinforced concrete soil suite arch 3 that the vault of tunnel body 9 matches.
The vault of tunnel body 9 is provided with horizontal and vertical side slope slip casting solidification anti-skid structure.The tunnel body 9
Inwall is provided with the reinforced concrete lining layer layer 6 fitted with it.The outer wall of tunnel body 9 is provided with the steel fitted with it
Frame supports 5.The bottom of the concrete guard wall 2 is provided with some friction piles 1.Insert concrete guard wall 2 in the top of the friction pile 1.
Embodiment：
The tunnel mouth hanging position big to High Side Slope of Highway section, bias in upper dam High Side Slope of Highway section, field is reconnoitred,
Determine the construction location of side slope 8 and formulate construction plan, be ready for construction equipment；The side slope 8 of construction location is cleared up,
Remove vegetation and excavate out barricade casting space；Friction pile 1 is set below barricade casting space, and the spacing of friction pile 1 is 3m,
Friction pile 1 is poured in place concrete structure or precast concrete；Backplate is laid in the top of friction pile 1 and pour out coagulation
Native barricade 2, concrete guard wall 2 is C20 concrete, and the inwall of concrete guard wall 2 is vertical, outer wall is inclined；Concrete guard wall 2 meets age
Reinforcing bar is laid at the top of it after phase, the reinforced concrete soil suite arch 3 matched with the vault of tunnel body 9 is then poured out；In side slope 8
Some longitudinal directions and the longitudinal grouting tube 7 being spaced apart are inserted into, longitudinal grouting tube 7 is according to the vault radian cloth of tunnel body 9
Put；If in the horizontal grouting tube 4 that the top of longitudinal grouting tube 7 insertion dried layer is perpendicular with longitudinal grouting tube 7；Pass through respectively
Longitudinal grouting tube 7 and horizontal grouting tube 4 inject concrete slurry into side slope 8；The concrete slurry and steel of injection side slope 8
Reinforced concrete set arch 3 meets tunnel excavation body 9 after age, supports 5 to carry out a phase using steelframe while tunnel excavation body 9
Supporting；5 surface pouring reinforcement concrete lining cutting 6 are supported in steelframe after the completion of first liner timbering, reinforced concrete lining layer 6 is C25 steel
Reinforced concrete, after the completion of reinforced concrete lining layer 6 is laid.
Above-described embodiment is only a preferred embodiment of the present invention, and the protection domain being not intended to limit the present invention is all
Done deformation, modification or equivalent etc., all should fall into the protection model of the present invention on the basis of technical scheme
Enclose.
Claims (8)
1. a kind of tunnel structure that can reduce slope excavating, it is characterised in that：Including the tunnel body (9) intersected with side slope (8),
Tunnel body (9) is provided with the concrete guard wall (2) of vertical arrangement near the side wall of side slope (8), and concrete guard wall (2) top is provided with
Encircle (3) with the reinforced concrete soil suite that tunnel body (9) vault matches.
2. the tunnel structure that slope excavating can be reduced according to claim 1, it is characterised in that：The tunnel body (9)
Vault is provided with horizontal and vertical side slope slip casting solidification anti-skid structure.
3. the tunnel structure that slope excavating can be reduced according to claim 1, it is characterised in that：The tunnel body (9)
Inwall is provided with the reinforced concrete lining layer layer (6) fitted with it.
4. the tunnel structure that slope excavating can be reduced according to claim 1, it is characterised in that：The tunnel body (9)
Outer wall is provided with the steelframe fitted with it and supports (5).
5. the tunnel structure that slope excavating can be reduced according to claim 1, it is characterised in that：The concrete guard wall
(2) bottom is provided with some friction piles (1).
6. the tunnel structure that slope excavating can be reduced according to claim 5, it is characterised in that：Friction pile (1) top
End insertion concrete guard wall (2).
7. a kind of construction method of the tunnel structure that can reduce slope excavating as described in any one of claim 1-6, its feature
It is：The method is comprised the following steps：
A, the tunnel mouth hanging position big to High Side Slope of Highway section, bias in upper dam High Side Slope of Highway section, field are reconnoitred, really
The construction location on deckle slope (8) simultaneously formulates construction plan, is ready for construction equipment；
B, the side slope (8) to construction location are cleared up, and are removed vegetation and are excavated out barricade casting space；
C, setting friction pile (1) below barricade casting space, friction pile (1) is poured in place concrete structure or concrete
Soil structure；
D, backplate and pour out concrete guard wall (2) in the laying of friction pile (1) top, concrete guard wall (2) inwall vertically, outer wall
Incline；
E, concrete guard wall (2) lay reinforcing bar after meeting age at the top of it, then pour out and tunnel body (9) vault phase
Reinforced concrete soil suite arch (3) matched somebody with somebody；
F, the longitudinal grouting tube (7) for being inserted into some longitudinal directions and being spaced apart in side slope (8), longitudinal grouting tube (7) according to
Tunnel body (9) vault radian is arranged；
G, in longitudinal grouting tube (7) if the top insertion dried layer horizontal grouting tube perpendicular with longitudinal grouting tube (7)
(4)；
H, respectively cement mortar injected into side slope (8) by longitudinal grouting tube (7) and horizontal grouting tube (4)；
I, the concrete slurry of injection side slope (8) and reinforced concrete soil suite arch (3) meet tunnel excavation body (9) after age, open
(5) are supported to carry out first liner timbering using steelframe while digging tunnel body (9)；
The pouring reinforcement concrete lining cutting of (5) surface (6) are supported in steelframe after the completion of J, first liner timbering, reinforced concrete lining layer (6)
After the completion of laying.
8. the construction method of the tunnel structure that can reduce slope excavating according to claim 7, it is characterised in that：It is described anti-
The spacing of sliding pile (1) is 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003852.XA CN106638509A (en) | 2017-01-04 | 2017-01-04 | Tunnel structure capable of reducing side slope excavation and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003852.XA CN106638509A (en) | 2017-01-04 | 2017-01-04 | Tunnel structure capable of reducing side slope excavation and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106638509A true CN106638509A (en) | 2017-05-10 |
Family
ID=58844092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710003852.XA Pending CN106638509A (en) | 2017-01-04 | 2017-01-04 | Tunnel structure capable of reducing side slope excavation and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106638509A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747904A (en) * | 2019-11-26 | 2020-02-04 | 山西省交通规划勘察设计院有限公司 | Highway tunnel bias open cut tunnel structural form and construction method thereof |
| CN110985002A (en) * | 2019-11-11 | 2020-04-10 | 中铁十九局集团第五工程有限公司 | Tunnel construction method for horizontal semi-soft semi-hard section stratum |
| CN112647536A (en) * | 2020-12-04 | 2021-04-13 | 四川省交通勘察设计研究院有限公司 | Open cut tunnel construction method without side slope disturbance |
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| CN204419195U (en) * | 2014-12-29 | 2015-06-24 | 山西省交通科学研究院 | A kind of supporting and protection structure pattern being applicable to tunnel portal section |
| CN104806267A (en) * | 2015-04-29 | 2015-07-29 | 中铁第一勘察设计院集团有限公司 | Shield end socket reinforcing system of scree soil layer advance large pipe roof and construction method thereof |
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| CN105133625A (en) * | 2015-09-16 | 2015-12-09 | 中南大学 | Reinforced structure of tunnel transversely penetrating through sliding slope and construction method |
| CN106223989A (en) * | 2016-08-10 | 2016-12-14 | 兰州理工大学 | Unsymmetrial loading tunnel hole excavation safeguard structure and construction method |
| CN206396732U (en) * | 2017-01-04 | 2017-08-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Can reduce tunnel structure of side slope excavation |
-
2017
- 2017-01-04 CN CN201710003852.XA patent/CN106638509A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201635745U (en) * | 2010-04-08 | 2010-11-17 | 安徽省交通规划设计研究院 | Ribbed-arch multi-arch tunnel |
| CN102518453A (en) * | 2011-12-14 | 2012-06-27 | 中铁十二局集团有限公司 | Quick tunnel-entrance construction method for bias-pressure shallow-buried or single-pressure tilting arenaceous loess tunnels |
| CN103206219A (en) * | 2013-05-06 | 2013-07-17 | 浙江省宏途交通建设有限公司 | Holed excavation supporting structure for light and dark junction section of tunnel in bias pressure state and construction method |
| CN203308470U (en) * | 2013-05-28 | 2013-11-27 | 山西省交通科学研究院 | Cover arch structure suitable for large-section unsymmetrical loading tunnel portal section |
| CN204419195U (en) * | 2014-12-29 | 2015-06-24 | 山西省交通科学研究院 | A kind of supporting and protection structure pattern being applicable to tunnel portal section |
| CN104806267A (en) * | 2015-04-29 | 2015-07-29 | 中铁第一勘察设计院集团有限公司 | Shield end socket reinforcing system of scree soil layer advance large pipe roof and construction method thereof |
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| CN106223989A (en) * | 2016-08-10 | 2016-12-14 | 兰州理工大学 | Unsymmetrial loading tunnel hole excavation safeguard structure and construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985002A (en) * | 2019-11-11 | 2020-04-10 | 中铁十九局集团第五工程有限公司 | Tunnel construction method for horizontal semi-soft semi-hard section stratum |
| CN110985002B (en) * | 2019-11-11 | 2021-03-23 | 中铁十九局集团第五工程有限公司 | Tunnel construction method for horizontal semi-soft semi-hard section stratum |
| CN110747904A (en) * | 2019-11-26 | 2020-02-04 | 山西省交通规划勘察设计院有限公司 | Highway tunnel bias open cut tunnel structural form and construction method thereof |
| CN112647536A (en) * | 2020-12-04 | 2021-04-13 | 四川省交通勘察设计研究院有限公司 | Open cut tunnel construction method without side slope disturbance |
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Application publication date: 20170510 |