CN109184739A - A kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone - Google Patents
A kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone Download PDFInfo
- Publication number
- CN109184739A CN109184739A CN201811162508.6A CN201811162508A CN109184739A CN 109184739 A CN109184739 A CN 109184739A CN 201811162508 A CN201811162508 A CN 201811162508A CN 109184739 A CN109184739 A CN 109184739A
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- Prior art keywords
- jurisdiction
- section
- anchor bolt
- slip casting
- damaged area
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/025—Grouting with organic components, e.g. resin
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The present invention provides a kind of in-situ rapid renovations and characterization processes for tunnel scene section of jurisdiction damage zone, utilize the serial component such as carbon cloth, prestressed high-strength anchor bolt, flexible rubber seal ring, arc sealing plate, hollow slip casting anchor bolt, in conjunction with grouting reinforcement technique, effective rapid reinforcement can be carried out to tunnel scene section of jurisdiction damaged area, it limits it further to destroy, improves the local bearing strength in segment damage area.The present invention gives section of jurisdiction repairing effect detection method, establish the quality difference quantitative assessing index that position and intact position are repaired in section of jurisdiction, to section of jurisdiction repairing effect and section of jurisdiction security performance progress quantitative detection and evaluation can be repaired, being precisely controlled for section of jurisdiction quality life cycle management is realized, conventional technical means is solved and is difficult to the deficiency evaluated repairing effect quantitative test.
Description
Technical field
The present invention relates to tunnel support technical field more particularly to a kind of original position for tunnel scene section of jurisdiction damage zone are fast
Speed is repaired and characterization processes.
Background technique
Assembled steel reinforced concrete pipe sheet is as a kind of typical tunnel support technology, because its materials is convenient, manufacture craft letter
Single, the cheap, advantages such as speed of application is fast, intensity is high, are widely used in shield tunnel supporting field.However, due to tunnel
Road inevitably passes through the stratum that some complex geological conditions influence, or by section of jurisdiction production, processing, assembly and other issues shadow
It rings, tunnel scene pipe-plate lining cracking failure phenomenon is also to happen occasionally.Segment cracking breakage can weaken the entirety of tunnel-liner
Supporting intensity, once unfavorable, such as generation chip off-falling phenomenon, it will bring lethal challenge to metro operation train is controlled it.Therefore,
How to carry out live pipe-plate lining quickly to repair, it is avoided to generate further cracking destruction, is to ensure constructing tunnel and operation peace
A full vital task.
Summary of the invention
The problems such as cracking failure easily occurred for the reinforced concrete segment lining cutting of tunnel scene, the present invention proposes a kind of use
In-situ rapid renovation and characterization processes in tunnel scene section of jurisdiction damage zone can carry out segment damage region effectively quickly to add
Gu limiting it further to destroy, the local bearing strength of damaged area section of jurisdiction is improved；To realize segment damage region repairing and treating
The quantitative assessment of effect, the invention also provides the detection method that matches, can the mechanical property to section of jurisdiction after reparation carry out it is real-time
Evaluation and feedback, to guarantee that tunnel pipe sheet built in the safety of operation stage, realizes the life cycle management essence of pipe-plate lining quality
Quasi- control.
To achieve the above object, the specific technical solution of the present invention is as follows:
A kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone, specifically includes the following steps:
Step 1: the damaged area to be repaired of selected tunnel pipe sheet built, and measure the size of damaged area；
Step 2: according to the size of damaged area, uniformly being applied along damaged area and periphery non-damaged area section of jurisdiction surface
One layer of adhesive is smeared, and pastes the carbon cloth for meeting size requirement, to prevent damaged area from further expanding；
Step 3: circumferential around damaged area, at the non-damaged area position for being adhesive with carbon cloth, uniform intervals are applied
Play series of peripheral drilling；
Step 4: by aperture in advance and the arc sealing plate that is equipped with flexible rubber seal ring moves to damaged area table to be repaired
Face guarantees that the periphery aperture of arc sealing plate is aligned with the drilling of the periphery of step 3 injection；
Step 5: on damaged area periphery, embedded in hole enters resin anchoring cartridge, sequentially passes through arc sealing plate week using anchor bolt
In side aperture drills to periphery, and anchor bolt is installed in precession, and anchor bolt can blend resin anchoring cartridge in precession installation process, is realized
Installation of the high-strength anchor bolt in periphery drills is fixed；
Step 6: by screwing anchor bolt external nut mode, prestressing force being applied to anchor bolt tensioning, is realized to arc sealing plate, soft
Property rubber seal ring and effective radial compression of broken region section of jurisdiction；
Step 7: arcuately sealing plate center opening position is crushed in region in pipe-plate lining and drills, and according to step 5
Hollow slip casting anchor bolt is installed using resin anchoring cartridge, and screws its external nut and carries out primary preload tensioning；
Step 8: the hollow slip casting anchor bolt grouting stop-valve of opening steps 7 is crushed region to section of jurisdiction and carries out slip casting, and grouting serous fluid can have
Effect filling damaged area crack, arc sealing plate wall post gap and drilling hole；
Step 9: after grouting serous fluid solidification, closing hollow slip casting anchor bolt grouting stop-valve, and screw its external nut and carry out two
Secondary preload tensioning applies prestressing force；
Step 10: completing the in-situ rapid renovation of tunnel scene pipe-plate lining damaged area；
Step 11: live pipe-plate lining damaged area being repaired after finishing time t, repairing effect is detected；If pipe
Piece repairing and treating works well, then terminates to repair, if section of jurisdiction repairing and treating effect is poor, carries out further reinforcement control.
Further, the carbon cloth size be greater than or equal to arc sealing plate size, arc sealing plate size be greater than or
Equal to 2~3 times of pipe-plate lining damaged area size.
Further, the arc sealing plate, anchor bolt and hollow slip casting anchor bolt material include but is not limited to steel, GFRP material
Material.
Further, the arc sealing plate radian is consistent with tunnel pipe sheet built inner arcuate surface radian, arc sealing plate
Periphery is circumferential and centre is equipped with series of apertures.
Further, after the flexible rubber seal ring sticks in arc sealing plate wall, for ring-type, inside and outside loop-shaped packet
It includes but is not limited to round, rectangular, flexible rubber seal ring inner ring size is greater than broken area size, and outer ring size can be with arc sealing plate
Size is consistent.
Further, the hollow slip casting anchor bolt is the hollow form body of rod, the installation of hollow slip casting anchor bolt outer end inner ring position
There is the grouting stop-valve of movable setting, slip casting can be carried out by hollow slip casting anchor bolt outer end position when opening grouting stop-valve, work as slip casting
After can close grouting stop-valve, prevent slurries from outflowing.
The hollow slip casting anchor bolt bar wall is equipped with several grout outlets, when hollow slip casting anchor bolt utilizes resin anchoring cartridge
After the installation is completed, the inner section anchorage length formed in the damaged area section of jurisdiction drilling in the step 7 is 1/3~1/2
Times drillable length, drilling foreign section part are hollow slip casting anchor bolt free segment, it is ensured that grouting serous fluid is along grout outlet to surrounding tube
Piece damaged area carries out slip casting, and slip casting, which finishes rear slurry, can effectively fill section of jurisdiction damaged area crack, arc sealing plate wall post gap
And foreign section drilling hole.
Further, the grouting serous fluid includes but is not limited to cement grout, polymer chemistry slurries.
Further, using a kind of in-situ rapid renovation and detection work for tunnel scene section of jurisdiction damage zone
Skill repairs live pipe-plate lining damaged area after finishing time t, to realize the quantitative assessment of repairing and treating effect and repairing pipe
The long-term safety performance of piece detects, the detection method proposed in step 11, comprising the following steps:
Step a: segment damage region repair after in time t, to section of jurisdiction repair position deformation and stress data into
Row acquisition.
Step (a-1), acquisition section of jurisdiction repair the surface convergence displacement data at position, repair position in statistics settling time t
The change curve of surface convergence displacement and time obtains the accumulative face deformation values U that position is repaired in section of jurisdiction in time tf。
Step (a-2), it is circumferential and axial along tunnel respectively, the table at position is repaired using fibre optic strain sensor acquisition section of jurisdiction
It is bent to count the strain of reparation position circumferential surface, axial surface strain and the variation of time in settling time t respectively for face strain data
Line obtains the accumulative circumferential surface strain value ε that position is repaired in section of jurisdiction in time tfAnd accumulative axial surface strain value ηf。
Step b: in a neighbouring endless tube sheet built, choosing the same intact position in position section of jurisdiction corresponding with position is repaired,
Using step a same method, the deformation and stress data at the intact position in section of jurisdiction are acquired, section of jurisdiction in time t is respectively obtained
The accumulative face deformation values U at intact positioni, accumulative circumferential surface strain value εiAnd accumulative axial surface strain value ηi。
Step c: the monitoring data at position and intact position are repaired according to the section of jurisdiction that step a, b collects, are established respectively
Surface deformation variance rate DU, circumferential surface strain variance rate DεAnd axial surface strains variance rate Dη。
Step d: each variance rate established according to step c, the quality difference for establishing section of jurisdiction reparation position and intact position are fixed
Measure evaluation index ΦD, the repairing effect at position is repaired to section of jurisdiction in time t and security performance carries out quantitative assessment.If of poor quality
Different quantitative assessing index ΦDLess than setting value [Φ], illustrate that section of jurisdiction repairing and treating works well, if quality difference quantitative assessment refers to
Mark ΦDIt is greater than the set value [Φ], illustrates that section of jurisdiction repairing and treating effect is poor, also needs to carry out further reinforcement control.
Further, the fibre optic strain sensor is in a kind of original position for tunnel scene section of jurisdiction damage zone
Carbon cloth is installed before not pasting in step 1 in quick reparation and characterization processes, is pasted and is installed on segment damage area
The surface in domain or intact region, it is circumferential and one of each setting axial along tunnel；The fibre optic strain sensor and external data
Acquisition instrument is connected, and can acquire the surface strain data that segment damage repairs position and intact position.
Further, the surface deformation variance rate DUCalculation formula are as follows: DU=| Uf-Ui|/Ui× 100%.
The circumferential surface strains variance rate DεCalculation formula are as follows: Dε=| εf-εi|/εi× 100%.
The axial surface strains variance rate DηCalculation formula are as follows: Dη=| ηf-ηi|/ηi× 100%.
The quality difference quantitative assessing index ΦDCalculation formula are as follows: ΦD=γUDU+γεDε+γηDη.Wherein, γU、
γε、γηRespectively surface deformation variance rate, circumferential surface strain variance rate, the corresponding contribution degree of axial surface strain variance rate
Coefficient meets γU+γε+γη=1, each contribution degree coefficient magnitude can be by DU、Dε、DηSize is divided in portion to obtain.
The invention has the benefit that
1) present invention utilizes carbon cloth, can circumferentially provide operative constraint for segment damage region surface, avoid its into
One step cracking destruction；It then can be right by applying radial prestressing force using components such as arc sealing plate, anchor bolt and hollow slip casting anchor bolts
Damaged section of jurisdiction, which radially provides, effectively to be squeezed and constrains；Meanwhile can also effectively be filled by grouting serous fluid damaged area section of jurisdiction crack,
Arc sealing plate wall post gap and drilling hole make each component be effectively formed compound carrying entirety, it is excellent to play respective mechanical property
Gesture further enhances the local bearing strength of damaged section of jurisdiction.
2) arc sealing plate of the present invention, anchor bolt and hollow slip casting anchor bolt material can be the materials such as steel or GFRP, when for GFRP
When material, reparation construction weight can be effectively reduced under the premise of guaranteeing sufficient intensity, reduce labor intensity of workers consumption, save fortune
Defeated and installation cost, while also can effectively avoid the corrosion phenomenon for repairing component.
3) present invention carries out slip casting to broken region by hollow slip casting anchor bolt can have while closing wall-rock crack
Effect prevents segment damage region from generating drainage.
4) directly at tunnel scene, pipe-plate lining surface in situ applies this kind of renovation technique of the invention, simple process, efficiently
And strong operability, it can effectively solve the problems, such as the quick reparation of live segment damage.
5) present invention also detects the repairing effect of section of jurisdiction after carrying out section of jurisdiction reparation；Give section of jurisdiction reparation
The quantitative detecting method of effect can carry out section of jurisdiction repairing and treating effect and long-term safety state to implement test and quantitative assessment,
Being precisely controlled for section of jurisdiction life cycle management quality is realized, conventional technical means is solved and is difficult to survey repairing and treating effect quantitatively
Try the deficiency of evaluation.
Detailed description of the invention
Specific embodiments of the present invention are further described in detail with reference to the accompanying drawing, the schematic reality of the application
Example and its explanation are applied for explaining the application, is not constituted an undue limitation on the present application.
Fig. 1 is the structural schematic diagram after step 2 of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram during step 5~6 of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram after step 7 of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram after step 10 of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram after arc of embodiment of the present invention sealing plate is combined with flexible rubber seal ring；
Fig. 6 is 1-1 sectional schematic diagram in Fig. 5；
Fig. 7 is structural schematic diagram when the hollow slip casting anchor bolt of the embodiment of the present invention installs non-slip casting；
Fig. 8 is the flow chart of section of jurisdiction of embodiment of the present invention repairing effect detection method；
Fig. 9 is the arrangement signal of fibre optic strain sensor in the repairing effect detection method of section of jurisdiction of the embodiment of the present invention
Figure；
Wherein: the section of jurisdiction 1-；2- carbon cloth；3- flexible rubber seal ring；4- arc sealing plate；5- resin anchoring cartridge；6- high
Strong anchor bolt；7- external nut；The hollow slip casting anchor bolt of 8-；9- grouting stop-valve；10- grout outlet；11- inner section；12- foreign section；13- ring
To fibre optic strain sensor；14- axial optical fiber strain transducer.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, the cracking failure etc. easily occurred for the reinforced concrete segment lining cutting of tunnel scene
Problem, the present invention propose a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone, can be broken to section of jurisdiction
It damages region and carries out effective rapid reinforcement, limit it and further destroy, improve the local bearing strength of damaged area section of jurisdiction, simultaneously also
To repairing effect and section of jurisdiction security performance progress quantitative detection and evaluation can be repaired, realize the accurate of section of jurisdiction quality life cycle management
Control.The present invention will be further described with embodiment with reference to the accompanying drawing.
A kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone, specifically includes the following steps:
Step 1: the damaged area to be repaired of selected 1 lining cutting of tunnel duct piece, and measure the size of damaged area；
Step 2: according to damaged area size, uniformly being applied along non-1 surface of damaged area section of jurisdiction in damaged area and periphery
One layer of High-performance adhesive is smeared, and pastes the carbon cloth 2 for meeting size requirement, to prevent damaged area from further expanding；
Step 3: circumferential around damaged area, at the non-damaged area position for being adhesive with carbon cloth 2, uniform intervals are applied
Play series of peripheral drilling；
Step 4: by aperture in advance and the arc sealing plate 4 that is equipped with flexible rubber seal ring 3 moves to damaged area to be repaired
Surface guarantees that the 4 periphery aperture of arc sealing plate is aligned with the drilling of the periphery of step 3 injection；
Step 5: on damaged area periphery, embedded in hole enters resin anchoring cartridge 5, sequentially passes through arc using high-strength anchor bolt 6
In 4 periphery aperture of sealing plate drills to periphery, and high-strength anchor bolt 6 is installed in precession, and high-strength anchor bolt 6 can blend in precession installation process
Resin anchoring cartridge 5 realizes that installation of the high-strength anchor bolt 6 in the drilling of periphery is fixed；
Step 6: by screwing 6 external nut of high-strength anchor bolt, 7 mode, prestressing force, realization pair being applied to 6 tensioning of high-strength anchor bolt
Effective radial compression of arc sealing plate 4, flexible rubber seal ring 3 and broken region section of jurisdiction 1；
Step 7: arcuately 4 center opening position of sealing plate is crushed in region in 1 lining cutting of section of jurisdiction and drills, and according to step
Rapid 5 install hollow slip casting anchor bolt 8 using resin anchoring cartridge 5, and screw its external nut 7 and carry out once pre-tightening tensioning；
Step 8: hollow 8 grouting stop-valve 9 of slip casting anchor bolt of opening steps 7 is crushed region to pipe 1 and carries out slip casting, and grouting serous fluid can
Effectively filling damaged area crack, 4 wall post gap of arc sealing plate and drilling hole；
Step 9: after grouting serous fluid solidification, closing hollow 8 grouting stop-valve 9 of slip casting anchor bolt, and by screwing its external nut 7
Secondary preload tensioning is carried out, prestressing force is applied；
Step 10: completing the in-situ rapid renovation in 1 concrete lining damage region of tunnel scene section of jurisdiction；
Step 11: live pipe-plate lining damaged area being repaired after finishing time t, repairing effect is detected；If pipe
Piece repairing and treating works well, then terminates to repair, if section of jurisdiction repairing and treating effect is poor, carries out further reinforcement control.
Further, 2 size of carbon cloth is greater than or equal to 4 size of arc sealing plate, and 4 size of arc sealing plate is greater than
Or 2~3 times equal to 1 concrete lining damage area size of section of jurisdiction.
Further, the arc sealing plate 4, high-strength anchor bolt 6 and hollow 8 material of slip casting anchor bolt are GFRP material, furthermore
Its material can be also steel etc..
Further, 4 radian of arc sealing plate is consistent with 1 lining cutting inner arcuate surface radian of tunnel duct piece, arc envelope
4 periphery of plate is circumferential and centre is equipped with series of apertures.
Further, after the flexible rubber seal ring 3 sticks in 4 wall of arc sealing plate, for ring-type, inside and outside loop-shaped
For circle, while outer loop-shaped can also be rectangular or other shapes etc., and 3 inner ring size of flexible rubber seal ring is greater than broken region ruler
Very little, outer ring size can be consistent with 4 size of arc sealing plate.
Further, the hollow slip casting anchor bolt 8 is the hollow form body of rod, hollow 8 outer end inner ring position of slip casting anchor bolt peace
Grouting stop-valve 9 equipped with movable setting can carry out slip casting by hollow 6 outer end position of slip casting anchor bolt when opening grouting stop-valve 9, when
Grouting stop-valve 9 can be closed after slip casting, prevent slurries from outflowing.The 8 bar wall of hollow slip casting anchor bolt is equipped with several grout outlets
10.In step 7, when hollow slip casting anchor bolt 8 using resin anchoring cartridge 5 after the installation is completed, drill interior shape in damaged area section of jurisdiction 1
At 11 anchorage length of inner section be 1/3~1/2 times of drillable length, drilling 12 part of foreign section be hollow slip casting anchor bolt 8 freely
Section, it is ensured that grouting serous fluid carries out slip casting to 1 damaged area of section of jurisdiction around along grout outlet, and slip casting finishes rear slurry and can effectively fill
1 damaged area crack of section of jurisdiction, 4 wall post gap of arc sealing plate and foreign section drilling hole.
Further, the grouting serous fluid is cement grout, and in addition to this, grouting serous fluid can also be starched for polymer chemistry
Liquid etc..
Using a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone, to field pipes
After the reparation of sheet built damaged area finishes time t, to realize the quantitative assessment of repairing and treating effect and repairing the long-term peace of section of jurisdiction
Full performance detection, the invention also includes effect detection steps 11, as shown in figure 8, specific steps include:
Step a: after 1 damaged area of section of jurisdiction is repaired in time t, deformation and the stress data at position are repaired to section of jurisdiction 1
It is acquired.
Step (a-1), acquisition section of jurisdiction 1 repair the surface convergence displacement data at position, repair position in statistics settling time t
The change curve of surface convergence displacement and time obtains the accumulative face deformation values U that position is repaired in section of jurisdiction 1 in time tf。
Step (a-2), it is circumferential and axial along tunnel respectively, 1 reparation portion of section of jurisdiction is acquired using fibre optic strain sensor 13,14
The surface strain data of position count in settling time t respectively and repair the strain of position circumferential surface, axial surface strain and time
Change curve obtains the accumulative circumferential surface strain value ε that position is repaired in section of jurisdiction 1 in time tfAnd accumulative axial surface strain value ηf。
Step b: in a neighbouring endless tube sheet built, choosing the same intact position in position section of jurisdiction corresponding with position is repaired,
Using step a same method, the deformation and stress data at the intact position in section of jurisdiction are acquired, section of jurisdiction in time t is respectively obtained
The accumulative face deformation values U at intact positioni, accumulative circumferential surface strain value εiAnd accumulative axial surface strain value ηi。
Step c: the monitoring data at position and intact position are repaired according to the section of jurisdiction 1 that step a, b collects, are established respectively
Surface deformation variance rate DU, circumferential surface strain variance rate DεAnd axial surface strains variance rate Dη。
Step d: each variance rate established according to step c, the quality difference for establishing the reparation position of section of jurisdiction 1 and intact position are fixed
Measure evaluation index ΦD, the repairing effect at position is repaired to section of jurisdiction 1 in time t and security performance carries out quantitative assessment.If of poor quality
Different quantitative assessing index ΦDLess than setting value [Φ], illustrate that 1 repairing and treating of section of jurisdiction works well, if quality difference quantitative assessment
Index ΦDIt is greater than the set value [Φ], illustrates that 1 repairing and treating effect of section of jurisdiction is poor, also needs to carry out further reinforcement control.
Further, as shown in figure 9, the fibre optic strain sensor 13,14 is used for tunnel scene section of jurisdiction 1 in described
Carbon cloth 2 is installed before not pasting in the technique for rapidly repairing step 1 of damage zone, is pasted and is installed on 1 damage zone of section of jurisdiction
The surface in domain or intact region, it is circumferential and one of each setting axial along tunnel；The fibre optic strain sensor 13,14 and outside
Data acquisition instrument is connected, and can acquire the damaged surface strain data for repairing position and intact position in section of jurisdiction 1.
Further, the surface deformation variance rate DUCalculation formula are as follows: DU=| Uf-Ui|/Ui× 100%.
The circumferential surface strains variance rate DεCalculation formula are as follows: Dε=| εf-εi|/εi× 100%.
The axial surface strains variance rate DηCalculation formula are as follows: Dη=| ηf-ηi|/ηi× 100%.
The quality difference quantitative assessing index ΦDCalculation formula are as follows: ΦD=γUDU+γεDε+γηDη.Wherein, γU、
γε、γηRespectively surface deformation variance rate, circumferential surface strain variance rate, the corresponding contribution degree of axial surface strain variance rate
Coefficient meets γU+γε+γη=1, each contribution degree coefficient magnitude can be by DU、Dε、DηSize is divided in portion to obtain.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone, specifically includes the following steps:
Step 1: the damaged area to be repaired of selected tunnel pipe sheet built, and measure the size of damaged area；
Step 2: according to the size of damaged area, uniformly smearing one along damaged area and periphery non-damaged area section of jurisdiction surface
Layer adhesive, and the carbon cloth for meeting size requirement is pasted, to prevent damaged area from further expanding；
Step 3: it is circumferential around damaged area, at the non-damaged area position for being adhesive with carbon cloth, uniform intervals injection system
Arrange periphery drilling；
Step 4: by aperture in advance and the arc sealing plate that is equipped with flexible rubber seal ring moves to damaged area surface to be repaired, protects
Card arc sealing plate periphery aperture is aligned with the drilling of the periphery of step 3 injection；
Step 5: on damaged area periphery, embedded in hole enters resin anchoring cartridge, sequentially passes through arc sealing plate periphery using anchor bolt and opens
In the drilling of hole to periphery, and anchor bolt is installed in precession, and anchor bolt can blend resin anchoring cartridge in precession installation process, realizes anchor bolt
Installation in the drilling of periphery is fixed；
Step 6: by screwing anchor bolt external nut mode, prestressing force being applied to anchor bolt tensioning, is realized to arc sealing plate, flexible rubber
Glue seal ring and effective radial compression of broken region section of jurisdiction；
Step 7: arcuately sealing plate center opening position is crushed in region in pipe-plate lining and drills, and is utilized according to step 5
Resin anchoring cartridge installs hollow slip casting anchor bolt, and screws its external nut and carry out primary preload tensioning；
Step 8: the hollow slip casting anchor bolt grouting stop-valve of opening steps 7 is crushed region to section of jurisdiction and carries out slip casting, and grouting serous fluid can effectively fill
Fill out damaged area crack, arc sealing plate wall post gap and drilling hole；
Step 9: after grouting serous fluid solidification, closing hollow slip casting anchor bolt grouting stop-valve, and it is secondary pre- to screw the progress of its external nut
Anxiety is drawn, and prestressing force is applied；
Step 10: completing the in-situ rapid renovation of tunnel scene pipe-plate lining damaged area；
Step 11: live pipe-plate lining damaged area being repaired after finishing time t, repairing effect is detected；If section of jurisdiction is repaired
Multiple regulation effect is good, then terminates to repair, if section of jurisdiction repairing and treating effect is poor, carry out further reinforcement control.
2. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone as described in claim 1,
It is characterized in that, the carbon cloth size is greater than or equal to arc sealing plate size, and arc sealing plate size is greater than or equal to section of jurisdiction
2~3 times of concrete lining damage area size.
3. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone as described in claim 1,
It is characterized in that, the arc sealing plate, anchor bolt and hollow slip casting anchor bolt material include but is not limited to steel, GFRP material.
4. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone as described in claim 1,
It is characterized in that, the arc sealing plate radian is consistent with tunnel pipe sheet built inner arcuate surface radian, and arc sealing plate periphery is circumferential
And centre is equipped with series of apertures.
5. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone as described in claim 1,
It is characterized in that, after the flexible rubber seal ring sticks in arc sealing plate wall, for ring-type, inside and outside loop-shaped includes but unlimited
In round, rectangular etc., flexible rubber seal ring inner ring size is greater than broken area size, and outer ring size can be with arc sealing plate size one
It causes.
6. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone as described in claim 1,
It is characterized in that, the hollow slip casting anchor bolt is the hollow form body of rod, and hollow slip casting anchor bolt outer end inner ring position is equipped with movable
The grouting stop-valve of setting can carry out slip casting by hollow slip casting anchor bolt outer end position when opening grouting stop-valve, can after slip casting
Grouting stop-valve is closed, prevents slurries from outflowing.
7. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone as described in claim 1 or 6,
It is characterized in that, the hollow slip casting anchor bolt bar wall is equipped with several grout outlets, when hollow slip casting anchor bolt utilizes resin anchoring
After the installation is completed, the inner section anchorage length formed in the drilling of damaged area section of jurisdiction in the step 7 is 1/3~1/ to powder stick
2 times of drillable lengths, drilling foreign section part are hollow slip casting anchor bolt free segment, it is ensured that grouting serous fluid is along grout outlet to surrounding tube
Piece damaged area carries out slip casting, and slip casting, which finishes rear slurry, can effectively fill section of jurisdiction damaged area crack, arc sealing plate wall post gap
And foreign section drilling hole.
8. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone as described in claim 1,
It is characterized in that, the grouting serous fluid includes but is not limited to cement grout, polymer chemistry slurries.
9. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone as described in claim 1, step
Rapid 11 specific steps include:
Step a: after segment damage region is repaired in time t, the deformation at position is repaired to section of jurisdiction and stress data is adopted
Collection；
Step (a-1), acquisition section of jurisdiction repair the surface convergence displacement data at position, repair portion faces in statistics settling time t
The change curve of convergence displacement and time obtains the accumulative face deformation values U that position is repaired in section of jurisdiction in time tf；
Step (a-2), it is circumferential and axial along tunnel respectively, it is answered using the surface that position is repaired in light strain transducer acquisition section of jurisdiction
Parameter evidence counts the change curve that the strain of position circumferential surface, axial surface strain and time are repaired in settling time t respectively,
Obtain the accumulative circumferential surface strain value ε that position is repaired in section of jurisdiction in time tfAnd accumulative axial surface strain value ηf；
Step b: in a neighbouring endless tube sheet built, the same intact position in position section of jurisdiction corresponding with position is repaired is chosen, is used
Step a same method is acquired the deformation and stress data at the intact position in section of jurisdiction, it is intact to respectively obtain section of jurisdiction in time t
The accumulative face deformation values U at positioni, accumulative circumferential surface strain value εiAnd accumulative axial surface strain value ηi；
Step c: the monitoring data at position and intact position are repaired according to the section of jurisdiction that step a, b collects, establish surface respectively
Uneven deformation rate DU, circumferential surface strain variance rate DεAnd axial surface strains variance rate Dη；
Step d: each variance rate established according to step c, the quality difference for establishing section of jurisdiction reparation position and intact position are quantitatively commented
Valence index ΦD, the repairing effect at position is repaired to section of jurisdiction in time t and security performance carries out quantitative assessment；If quality difference is fixed
Measure evaluation index ΦDLess than setting value [Φ], illustrates that section of jurisdiction repairing and treating works well, do not need further reinforcement；If matter
Measure difference quantitative assessing index ΦDIt is greater than the set value [Φ], illustrates that section of jurisdiction repairing and treating effect is poor, also needs further to be mended
Strong control.
10. a kind of in-situ rapid renovation and characterization processes for tunnel scene section of jurisdiction damage zone as claimed in claim 9,
It is characterized in that, the fibre optic strain sensor is in the described in-situ rapid renovation for tunnel scene section of jurisdiction damage zone and inspection
It surveys carbon cloth in the step 1 of technique to be installed before not pasting, pastes and be installed on segment damage region or intact region
Surface, it is circumferential and one of each setting axial along tunnel；The fibre optic strain sensor is connected with external data acquisition instrument, can
Acquire the surface strain data that segment damage repairs position and intact position；
The surface deformation variance rate DUCalculation formula are as follows: DU=| Uf-Ui|/Ui× 100%；
The circumferential surface strains variance rate DεCalculation formula are as follows: Dε=| εf-εi|/εi× 100%.
The axial surface strains variance rate DηCalculation formula are as follows: Dη=| ηf-ηi|/ηi× 100%.
The quality difference quantitative assessing index ΦDCalculation formula are as follows: ΦD=γUDU+γεDε+γηDη；Wherein, γU、γε、
γηRespectively surface deformation variance rate, circumferential surface strain variance rate, the corresponding contribution degree system of axial surface strain variance rate
Number, meets γU+γε+γη=1, each contribution degree coefficient magnitude can be by DU、Dε、DηSize is divided in portion to obtain.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130930A (en) * | 2019-06-12 | 2019-08-16 | 上海隧道工程有限公司 | Reinforcement for large diameter shield tunnel |
| CN110565740A (en) * | 2019-08-13 | 2019-12-13 | 中广核工程有限公司 | Method for connecting open hole of submarine tunnel and riser |
| CN111156033A (en) * | 2020-01-20 | 2020-05-15 | 北京市市政工程研究院 | Tunnel inverted arch structure repairing method and repairing structure |
| CN111648775A (en) * | 2020-05-20 | 2020-09-11 | 中铁四院集团岩土工程有限责任公司 | Method and tool for renovating transverse deformation of shield tunnel |
| CN112012764A (en) * | 2020-08-25 | 2020-12-01 | 东北大学 | Shield segment of sliding installation type tenon joint and installation method |
| CN115680777A (en) * | 2022-12-29 | 2023-02-03 | 山西诚达公路勘察设计有限公司 | Highway tunnel crack is prevented collapsing and is detected filling device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1771161A1 (en) * | 1990-10-04 | 1994-01-15 | Научно-исследовательский институт технологии, организации производства двигателей | Method for repair of parts |
| US6226948B1 (en) * | 1999-05-26 | 2001-05-08 | John F. Trout | Method and apparatus for waterproofing concrete |
| CN102322152A (en) * | 2011-09-29 | 2012-01-18 | 重庆大学 | Prestressed carbon fiber board tensioning system and tension reinforcing method |
| CN102979536A (en) * | 2012-12-11 | 2013-03-20 | 上海市基础工程有限公司 | Construction method for tunnel segment repair and reinforcement |
| CN107701200A (en) * | 2017-10-16 | 2018-02-16 | 广州地铁设计研究院有限公司 | A kind of section of jurisdiction crack restorative procedure |
| CN207111108U (en) * | 2017-03-08 | 2018-03-16 | 山西省交通科学研究院 | A kind of rapid-maintenance structure damaged for Tunnel Second Lining |
| CN207278272U (en) * | 2017-09-12 | 2018-04-27 | 山东科技大学 | It is a kind of using arc channel steel and the tunnel duct piece connector of carbon cloth composite consolidation |
-
2018
- 2018-09-30 CN CN201811162508.6A patent/CN109184739B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1771161A1 (en) * | 1990-10-04 | 1994-01-15 | Научно-исследовательский институт технологии, организации производства двигателей | Method for repair of parts |
| US6226948B1 (en) * | 1999-05-26 | 2001-05-08 | John F. Trout | Method and apparatus for waterproofing concrete |
| CN102322152A (en) * | 2011-09-29 | 2012-01-18 | 重庆大学 | Prestressed carbon fiber board tensioning system and tension reinforcing method |
| CN102979536A (en) * | 2012-12-11 | 2013-03-20 | 上海市基础工程有限公司 | Construction method for tunnel segment repair and reinforcement |
| CN207111108U (en) * | 2017-03-08 | 2018-03-16 | 山西省交通科学研究院 | A kind of rapid-maintenance structure damaged for Tunnel Second Lining |
| CN207278272U (en) * | 2017-09-12 | 2018-04-27 | 山东科技大学 | It is a kind of using arc channel steel and the tunnel duct piece connector of carbon cloth composite consolidation |
| CN107701200A (en) * | 2017-10-16 | 2018-02-16 | 广州地铁设计研究院有限公司 | A kind of section of jurisdiction crack restorative procedure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130930A (en) * | 2019-06-12 | 2019-08-16 | 上海隧道工程有限公司 | Reinforcement for large diameter shield tunnel |
| CN110565740A (en) * | 2019-08-13 | 2019-12-13 | 中广核工程有限公司 | Method for connecting open hole of submarine tunnel and riser |
| CN111156033A (en) * | 2020-01-20 | 2020-05-15 | 北京市市政工程研究院 | Tunnel inverted arch structure repairing method and repairing structure |
| CN111648775A (en) * | 2020-05-20 | 2020-09-11 | 中铁四院集团岩土工程有限责任公司 | Method and tool for renovating transverse deformation of shield tunnel |
| CN112012764A (en) * | 2020-08-25 | 2020-12-01 | 东北大学 | Shield segment of sliding installation type tenon joint and installation method |
| CN115680777A (en) * | 2022-12-29 | 2023-02-03 | 山西诚达公路勘察设计有限公司 | Highway tunnel crack is prevented collapsing and is detected filling device |
| CN115680777B (en) * | 2022-12-29 | 2023-03-28 | 山西诚达公路勘察设计有限公司 | Highway tunnel crack is prevented collapsing and is detected filling device |
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