CN105569690B - Across the active fault anti-stick slide in tunnel dynamic secondary lining and its method of construction - Google Patents
Across the active fault anti-stick slide in tunnel dynamic secondary lining and its method of construction Download PDFInfo
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- CN105569690B CN105569690B CN201610013089.4A CN201610013089A CN105569690B CN 105569690 B CN105569690 B CN 105569690B CN 201610013089 A CN201610013089 A CN 201610013089A CN 105569690 B CN105569690 B CN 105569690B
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- Prior art keywords
- secondary lining
- hollow tube
- tunnel
- layer
- grouting pipe
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 title abstract description 17
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims description 13
- 239000004567 concrete Substances 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 3
- 238000003325 tomography Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000029052 metamorphosis Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses secondary linings and its method of construction that a kind of across active fault anti-stick slide in tunnel moves.The primary structure of its secondary lining is, it is perforated layer (1) that the position other than stand (7) is supported in reinforced concrete floor, and supporting the position within stand (7) for internal layer (3), the thickness ratio of internal layer (3) and perforated layer (1) is 1~1.8:1；Longitudinal hollow tube (2) is interspersed in the perforated layer (1), the diameter of hollow tube (2) is 0.5~0.7 with the thickness ratio of perforated layer (1):1, and hollow tube (2) is equally spaced along perforated layer (1) circumferential direction；It is embedded with radial Grouting Pipe (4) between the inner wall and hollow tube (2) of the internal layer (3).The secondary lining can resist the fault viscosity-sliding changing of the relative positions, reduce destruction of the fault movement to tunnel, effectively improve the shock resistance in tunnel and resist the ability that the fault viscosity-sliding changing of the relative positions destroys；And secondary lining can be repaired quickly after disruption, the reparation speed in tunnel is fast, and rehabilitation cost is low.
Description
Technical field
The present invention relates to secondary linings and its method of construction that a kind of across active fault anti-stick slide in tunnel moves
Background technology
With the acceleration of urbanization process, a large amount of constructions of Tunnel Engineering, tunnel construction leap will be inevitably encountered
The problem of active fault.Active fault refers to that those are newborn within modern age or period of history or have acknowledgement of consignment of adopting dynamic and displacement, with
And it may regenerate or continue in the near future the tomography of movement and displacement.The generation of earthquake has direct relation with active fault.
The active fault stick-slip changing of the relative positions is a kind of provincialism geological disaster of Structural Characteristics of Cenozioc Faulted Structure, it is that earthquake causes Cross-fault leveling
The principal element that tunnel structure seriously destroys.The active fault stick-slip changing of the relative positions of sudden large deformation can make tomography generate three dimensions
Permanent deformation, has both the property of tension and compression, shearing, torsion and bending, and larger fault movement amount influences Tunnel Engineering very big.
Currently, it is more to fault viscosity-sliding changing of the relative positions underground pipelines Failure type and design measure, and for passing through the tunnel of tomography
The dynamic technology of error resilience is less.
The stick-slip changing of the relative positions of active fault has the characteristics that randomness, strong destructiveness, acts on the mechanical characteristic in lower tunnel, breaks
Bad metamorphosis is very big.Wherein influence of the active fault stick-slip changing of the relative positions to tunnel is great, under certain alternate displacement, reinforced concrete
Native liner structure is often by flexural deformation, stretching, extruding and shear action, and structure can crack, especially in tomography
Nearby more serious destruction can occur for face.
In recent years, under the active fault changing of the relative positions, the error resilience of tunnel structure moves measure and mainly uses flexible structure.Such as Shen
Number please disclose a kind of " shock resisting and reducing structure spanning movable fault tunnel " for 200910058875.6 Chinese patent application, it be
The vibration absorber extended along tunnel longitudinally-moving tomography both sides is provided at rock mass active fault position, the vibration absorber is by being filled in
Bubble concrete layer between lining, outer lining is constituted.It absorbs the changing of the relative positions energy of earthquake using flexible material (bubble concrete layer),
Resist fault movement load.But it is insufficient of both the presence：First, since foam concrete is arranged, secondary at twice pour is needed
It builds, construction efficiency is substantially reduced, and construction period increases；Second is that the internal structure of lining cutting because fault movement it is impaired after, need to by
Damage position is detected, then bored grouting, and the maintenance and reinforcement difficulty after damage is big.
Invention content
The first invention purpose of the present invention is to provide a kind of secondary lining that the anti-stick slide in across active fault tunnel is dynamic.This two
Secondary lining cutting can resist the fault viscosity-sliding changing of the relative positions, reduce destruction of the fault movement to tunnel, effectively improve tunnel shock resistance and
Resist the ability that the fault viscosity-sliding changing of the relative positions destroys；And the secondary lining can be repaired quickly after disruption, accelerate the reparation speed in tunnel,
Reduce rehabilitation cost.
The present invention realizes its first invention purpose the technical scheme adopted is that a kind of across active fault anti-stick slide in tunnel
Horseshoe-shaped support bearing rod in dynamic secondary lining, including horseshoe-shaped reinforced concrete floor, reinforced concrete floor, it is special
Sign is：
It is perforated layer that the position other than bearing rod is supported in the reinforced concrete floor, and supports the portion within bearing rod
Position is internal layer, and the thickness of internal layer is 0.3~0.5 times of armored concrete layer thickness；It is provided in the perforated layer longitudinal
Hollow tube, 0.25-0.4 times of a diameter of trepanning layer thickness of hollow tube；And hollow tube is equally spaced along perforated layer circumferential direction,
Spacing is 1.5-2 times of hollow pipe diameter；The internal layer is equipped with radial Grouting Pipe, one end and the hollow tube phase of Grouting Pipe
Even, the other end connects with the inner wall of internal layer.
Further, hollow tube of the invention is managed for BDF.
Further, a diameter of 30~50mm of Grouting Pipe of the invention, the genesis analysis spacing of Grouting Pipe is 1.5~
3m。
Compared with prior art, the beneficial effects of the invention are as follows：
The internal layer of first and second lining cutting is solid reinforced concrete structure, and outside is porous perforated layer.Work as tunnel structure
When bearing normal use load, perforated layer transmits country rock load, and internal layer plays main supporting role.It is proved by testing, this hair
The diameter of the perforated layer of bright use and the thickness of internal layer when hollow tube, it is ensured that the intensity of entire lining cutting meets normal use
State lower structure safety.
Two, it is perforated layer outside secondary lining, forms the lining structure of " soft outside but hard inside ", perforated layer forms the rigidity of lining cutting
Weak band.The section rigidity of perforated layer is much smaller than the non-porous reinforced concrete floor of internal layer, when the stick-slip changing of the relative positions occurs for tomography, trepanning
The hollow tube stress of layer concentrates cracking, absorbs changing of the relative positions deformation, reduces influence of the active fault to tunnel reinforced concrete layer, from
And effectively increase Tunnel Second Lining integrally anti-stick slide kinetic force.
Three, the configuration of the present invention is simple, construction cost are low；The pre-buried injected hole in lining cutting, the maintenance and reinforcement process after shake
In, injected hole had both been convenient for the observation of damaged part, also can be by carrying out slip casting at hole that injected hole directly shatters to perforated layer
It reinforces, improves secondary lining bearing capacity, realize the easily and fast reparation to tunnel.
The second goal of the invention of the present invention is to provide a kind of secondary lining that above-mentioned across the active fault anti-stick slide in tunnel is dynamic
The method of construction of block.This method construction is convenient, and construction cost is low, and secondary lining one-time-concreting is completed, and construction speed is fast, is constructed into
This is low.
The present invention realizes that its second goal of the invention is adopted the technical scheme that, described in a kind of construction claim 1,2 or 3
The dynamic secondary lining of the anti-stick slide in across active fault tunnel method, step is：
A, support stand stud is fixed in secondary lining mould, makes support bearing rod at a distance from secondary lining mould inner wall
Equal to 0.3~0.5 times of secondary lining mould thickness；
B, lining cutting circumferential reinforcement is bound in secondary lining mould and lining cutting is longitudinal to reinforcing bar, and in secondary lining mould inner support
The hollow tube of position setting longitudinal direction other than stand stud, then hollow tube is fixed on support stand stud by metal binding wire
On；
C, Grouting Pipe binding is made into one end and the hollow tube phase of Grouting Pipe between the inner wall and hollow tube of secondary lining mould
Even, the other end connects with secondary lining mould inner wall；
D, in secondary lining mould one-piece casting concrete to get.
Compared with prior art, the advantageous effect of method of construction of the invention is：
This method is by supporting stand that secondary lining mould has been divided into reinforced concrete internal layer and perforated layer, further through binding steel
Muscle fixes hollow tube in perforated layer, and injected hole is fixed between hollow tube and the inner ring die wall of secondary lining mould；Then primary
Pouring molding；It is convenient to construct, and construction cost is low, and construction speed is fast；Pre-buried injected hole is also beneficial to the later period maintenance of liner structure
And reinforcing can be accelerated when earthquake or the active fault stick-slip changing of the relative positions occurs by injected hole to reinforcement and strengthening at perforated layer destruction
Repair progress, reduces maintenance cost.
The present invention is described in further details with reference to the accompanying drawings and detailed description.
Description of the drawings
Fig. 1 is the lateral section structure diagram of the secondary lining of the embodiment of the present invention.
Fig. 2 is the close-up schematic view of the part B of Fig. 1.
Fig. 3 is longitudinal section structure diagram (the A-A sectional views of Fig. 1) of the secondary lining of the embodiment of the present invention.
Specific implementation mode
Embodiment
Fig. 1-3 shows, a kind of specific implementation mode of the invention is, a kind of across active fault anti-stick slide in tunnel it is dynamic two
Horseshoe-shaped support bearing rod 8 in secondary lining cutting, including horseshoe-shaped reinforced concrete floor, reinforced concrete floor, wherein：
It is perforated layer 1 that the position other than bearing rod 8 is supported in the reinforced concrete floor, and is supported within bearing rod 8
Position be internal layer 3, the thickness of internal layer 3 is 0.3~0.5 times of armored concrete layer thickness；It is provided in the perforated layer 1
Longitudinal hollow tube 2,0.25-0.4 times of 1 thickness of a diameter of perforated layer of hollow tube 2；And hollow tube 2 is along 1 circumferential direction of perforated layer etc.
Spacing arranges that its spacing is 1.5-2 times of 2 diameter of hollow tube；The internal layer 3 is equipped with radial Grouting Pipe 4, Grouting Pipe 4
One end is connected with hollow tube 2, the other end connects with the inner wall of internal layer 3.
The hollow tube 2 of this example is managed for BDF.
The genesis analysis spacing of a diameter of 30~50mm of the Grouting Pipe 4 of this example, Grouting Pipe 4 are 1.5~3m.
A method of the dynamic secondary lining of above-mentioned across the active fault anti-stick slide in tunnel being built, step is：
A, support stand stud 8 is fixed in secondary lining mould, make support bearing rod 8 and secondary lining mould inner wall away from
From 0.3~0.5 times equal to secondary lining mould thickness；
B, lining cutting circumferential reinforcement 5 is bound in secondary lining mould and lining cutting is longitudinal to reinforcing bar 6, and in secondary lining Mo Neizhi
The hollow tube 2 of the position setting longitudinal direction other than stand stud 8 is supportted, then hollow tube 2 is fixed on support stand by metal binding wire 7
On stud 8；
C, by the binding of Grouting Pipe 4 between the inner wall and hollow tube 2 of secondary lining mould, make one end of Grouting Pipe 4 with it is hollow
Pipe 2 is connected, the other end connects with secondary lining mould inner wall；
D, in secondary lining mould one-piece casting concrete to get.
Claims (1)
1. a kind of method for building the dynamic secondary lining of across the active fault anti-stick slide in tunnel, across the active fault tunnel are anti-
Horseshoe-shaped support bearing rod in the secondary lining of the stick-slip changing of the relative positions, including horseshoe-shaped reinforced concrete floor, reinforced concrete floor
(8), wherein：It is perforated layer (1) that the position other than bearing rod (8) is supported in the reinforced concrete floor, and supports bearing rod
(8) position within is internal layer (3), and the thickness of internal layer (3) is 0.3~0.5 times of armored concrete layer thickness；The trepanning
It is provided with longitudinal hollow tube (2) in layer (1), 0.25-0.4 times of a diameter of perforated layer (1) thickness of hollow tube (2)；In and
Blank pipe (2) is equally spaced along perforated layer (1) circumferential direction, and its spacing is 1.5-2 times of hollow tube (2) diameter；The internal layer (3)
Equipped with radial Grouting Pipe (4), one end of Grouting Pipe (4) is connected with hollow tube (2), the other end connects with the inner wall of internal layer (3)；
The dynamic secondary lining of the anti-stick slide in across active fault tunnel, it is characterised in that：The hollow tube (2) is managed for BDF；Institute
The genesis analysis spacing of a diameter of 30~50mm for the Grouting Pipe (4) stated, Grouting Pipe (4) are 1.5~3m；
The method for building the dynamic secondary lining of the anti-stick slide in across active fault tunnel, step are：
A, support stand stud (8) is fixed in secondary lining mould, make support bearing rod (8) and secondary lining mould inner wall away from
From 0.3~0.5 times equal to secondary lining mould thickness；
B, lining cutting circumferential reinforcement (5) is bound in secondary lining mould and lining cutting is longitudinal to reinforcing bar (6), and in secondary lining Mo Neizhi
The hollow tube (2) of the position setting longitudinal direction other than stand stud (8) is supportted, then hollow tube (2) is fixed on by metal binding wire (7)
It supports on stand stud (8)；
C, by Grouting Pipe (4) binding between the inner wall and hollow tube (2) of secondary lining mould, make one end of Grouting Pipe (4) in
Blank pipe (2) is connected, the other end connects with secondary lining mould inner wall；
D, in secondary lining mould one-piece casting concrete to get.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013089.4A CN105569690B (en) | 2016-01-11 | 2016-01-11 | Across the active fault anti-stick slide in tunnel dynamic secondary lining and its method of construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013089.4A CN105569690B (en) | 2016-01-11 | 2016-01-11 | Across the active fault anti-stick slide in tunnel dynamic secondary lining and its method of construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105569690A CN105569690A (en) | 2016-05-11 |
| CN105569690B true CN105569690B (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610013089.4A Active CN105569690B (en) | 2016-01-11 | 2016-01-11 | Across the active fault anti-stick slide in tunnel dynamic secondary lining and its method of construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN105569690B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301843A (en) * | 2018-03-02 | 2018-07-20 | 北京交通大学 | Underwater shield tunnel shock resisting composite lining structure |
| CN110836120B (en) * | 2019-11-07 | 2020-11-06 | 山东大学 | Tunnel lining structure suitable for self-monitoring and adjusting of crossing active fault and construction method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4535902B2 (en) * | 2005-02-21 | 2010-09-01 | 株式会社昭和ゴム化学工業所 | Seismic joint for concrete structure and its construction method |
| CN101603429B (en) * | 2009-07-09 | 2011-11-16 | 西安理工大学 | Anti-seepage structure of composite lining deformation joints of ground fissure stratum tunnel and construction method thereof |
| CN101748755B (en) * | 2009-12-14 | 2011-08-24 | 中铁第一勘察设计院集团有限公司 | Flexible connecting and sealing bitumastic impervious structure of tunnel deformation joint and constructing method |
| CN204098928U (en) * | 2014-05-14 | 2015-01-14 | 中铁二十一局集团第三工程有限公司 | Tunnel vault two serves as a contrast the location pre-embedded device of front Grouting Pipe |
| CN105114105B (en) * | 2015-09-18 | 2016-06-29 | 南京联众建设工程技术有限公司 | Steel-concrete combined type tunnel-liner support structure and making thereof and construction method |
| CN205315014U (en) * | 2016-01-11 | 2016-06-15 | 西南交通大学 | Stride that active fault tunnel is anti to glue secondary lining that slide moved |
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