CN110331993A - A kind of filling and injecting slurry method of integrating tunnel lining quality defect blank repairing - Google Patents
A kind of filling and injecting slurry method of integrating tunnel lining quality defect blank repairing Download PDFInfo
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- CN110331993A CN110331993A CN201910778648.4A CN201910778648A CN110331993A CN 110331993 A CN110331993 A CN 110331993A CN 201910778648 A CN201910778648 A CN 201910778648A CN 110331993 A CN110331993 A CN 110331993A
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- cavity
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- concrete
- pipe
- skylight
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- 230000007547 defect Effects 0.000 title claims abstract description 19
- 238000007613 slurry method Methods 0.000 title claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 66
- 239000002002 slurry Substances 0.000 claims abstract description 54
- 238000007569 slipcasting Methods 0.000 claims abstract description 33
- 238000010276 construction Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000011378 shotcrete Substances 0.000 claims abstract description 14
- 239000011241 protective layer Substances 0.000 claims abstract description 12
- 201000010099 disease Diseases 0.000 claims abstract description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 3
- 239000011800 void material Substances 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 25
- 239000010410 layer Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 12
- 238000002513 implantation Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000008439 repair process Effects 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 3
- 210000002435 tendon Anatomy 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 3
- 229920002472 Starch Polymers 0.000 description 7
- 235000019698 starch Nutrition 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000008107 starch Substances 0.000 description 5
- 238000009955 starching Methods 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Abstract
The invention discloses a kind of filling and injecting slurry methods of integrating tunnel lining quality defect blank repairing, belong to tunnel repairing field；Successively cuts standard thickness the following steps are included: being less than to tunnel vault lining thickness and carry out the regulation that puts in a skylight in the presence of the disease compared with macroscopic-void behind, prepare several row slurry pipes and equidistantly bores row's slurry outlet in top surface along row slurry pipe longitudinal direction, non-closed sealing protection is carried out to injected hole, then it is close to just branch along the surrounding of skylight cavity or waterproof level lays row slurry pipe, in the radially arranged more Grouting Pipes of the edge of skylight, slurry pipe is let out in highest point setting in cavity, after being layered gunite concrete and final set in cavity, through Grouting Pipe slip casting until after letting out slurry pipe full packages pulp, stop slip casting；And protective layer is sprayed in concrete surface, the present invention has many advantages, such as that design is reasonable, of simple structure and low cost, operates conveniently, construction safety is reliable.
Description
Technical field
The present invention relates to tunnels to repair field, and in particular to a kind of repairing of integrating tunnel lining quality defect blank
Filling and injecting slurry method.
Background technique
Since there are corrosivity for underground water, so that tunnel lining concrete deteriorates, especially in percolating water development area
It is in bulk shape that corrosion is relatively deep；When corrosive medium is mainly calcium sulfate in tunnel environment, concrete is corroded with crystallinity
Effect, underground water is contacted with lining cutting leads to loose concrete, and intensity gradually reduces, and percolating water develops paragraph, sulfate lining in water
It builds surface gradually to deposit, deterioration is caused gradually to aggravate.The formation of lining cutting back cavity is mainly by three reasons:
(1): the constructing tunnel time is more early, construction relatively fall behind, construction period Blasting Control is not tight, after backbreaking not into
Row in time, effectively backfills；
(2): tunnel surrounding condition is poor, and mainly based on argillaceous siltstoue, silty, it is close to be influenced occurrence by gauffer
Level, the easy softening and shedding of country rock after excavation form cavity；
(3): after landslide, water burst (mud) occur for construction period, a large amount of timber being taken to be supported measure.
When larger less than 15cm, lining cutting back cavity floor projection scale there are lining thickness, it need to be less than using cutting
The lining cutting (i.e. blank) of 20cm, then repaired by way of spray-fiber concrete or form concrete, because of coagulation
It is not closely connected when soil shrinks or applies, it often results in mending concrete and there is gap or smaller cavity behind, cannot reach ideal
Tunnel stress, in order to improve tunnel-liner stress, so need to make tunnel reach ideal stress using filling and injecting slurry
State.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of repairings of integrating tunnel lining quality defect blank
Filling and injecting slurry method, specific technical solution are as follows:
A kind of filling and injecting slurry method of integrating tunnel lining quality defect blank repairing, successively the following steps are included:
(S1): tunnel Arch lining thickness being less than and cuts standard thickness and is opened behind in the presence of the disease compared with macroscopic-void
Skylight regulation；
(S2): prepare several rows slurry pipe and equidistantly bore row's slurry outlet in top surface along row slurry pipe is longitudinal, to injected hole into
Then row non-closed sealing protection lays row slurry pipe along skylight cavity surrounding, need will to go the top surface for starching pipe tight in the procedures of establishment
Paste waterproof layer arrangement；
(S3): being connected in the radially arranged more Grouting Pipes of the edge of skylight, and by three-way connection with row slurry pipe；
(S4): slurry pipe is let out in the highest point setting in cavity, and the spacing on the top and waterproof layer of letting out slurry pipe is not more than 1cm,
The bottom end for letting out slurry pipe is arranged outside tunnel-liner；
(S5): after being layered gunite concrete and concrete initial set into cavity, by Grouting Pipe slip casting until wait let out slurry
After pipe full packages pulp, stop slip casting；
(S6): before the concrete final set of injection, clearing up spray concrete surface with medium hard steel brush, keep concrete and former lining cutting neat
It is flat, and protective layer is sprayed in concrete surface.
The present invention will first be abolished in tunnel less than the lining cutting for cutting standard thickness and back cavity, be subsequent grouting operation
Operating space is provided, staff, which is expert to starch to open up injected hole on pipe and carry out non-closed sealing to injected hole, to be protected, and is avoided
Residue in row slurry pipe the procedures of establishment in cavity will not block injected hole, while slurry can break through non-closed sealing and to cavity
It is filled.When starching pipe full packages pulp simultaneously to be arranged on letting out in cavity, show behind gap or small in cavity regulation range
Empty full-filling is full, can stop slip casting, the final back cavity slip casting for realizing lining concrete in tunnel.
Preferably, no less than 3 layers of gunite concrete should be divided at cavity in step (S5)；And it need to be sprayed in the last layer
Slip casting in cavity is completed before penetrating concrete.
The present invention is not closely connected when avoiding generating concrete shrinkage or applying by carrying out multi-layer concrete injection to cavity
And it causes mending concrete behind and still there is a situation where smaller cavity, while by being completed before the last layer gunite concrete
Slip casting in cavity and so that slip casting is reached ideal effect, so that tunnel is in ideal stress.
Preferably, being both needed to be laid with silent steel mesh after every layer of gunite concrete.
The present invention improves the structural strength of concrete at cavity by being laid with silent steel mesh after gunite concrete,
It avoids because of the reinforcing bar selvage circle reinforcing bar exposure that is open.
Preferably, the regular shape of the skylight and side of skylight is using circular construction joint as boundary in step (S1), remaining
Skylight boundary lining concrete thickness is not less than 20cm.
The present invention is operated by using the skylight of regular shape convenient for operator, while skylight boundary lining concrete
Thickness is not less than 20cm, it is ensured that the overall stability and safety of structure after the regulation that puts in a skylight, and improve its stress.
Preferably, it is vertical the implantation of sky side should to be faced in skylight when the thickness of protection tier of skylight boundary is more than 15cm
The circumferential reinforcement for being 18cm to 22cm to spacing, when thickness of protection tier is more than 20cm using drilling implantation, as reinforcing bar guarantor
Covering thickness is less than 20cm and then welds implantation using with raw steel tendon protective layer.
The present invention improves to put in a skylight and renovates the effective connection and entirety of structure by being implanted into circumferential reinforcement in skylight
Stability, while different implantations is taken according to the different-thickness of cover to reinforcement, perfect implantation effect while, mention
High bearing capacity.
Preferably, step (S1) if in empty inner waterproofing plate tighten and not closely connected preliminary bracing, need to cut along longitudinal direction
Repairing splash guard makes its closely connected preliminary bracing afterwards.
The present invention repairs splash guard after blank, and preliminary bracing is avoided to seep after slip casting mending course
It leaks and tunnel is adversely affected.
Preferably, the material that protective layer uses in step (S6) is high osmosis, the epoxy resin of high-durability, and
In addition to close to the side of construction joint of tunnel, remaining marginal spray epoxy resin range exceeds pneumatically placed concrete boundary 40cm extremely
60cm。
The present invention passes through sprayed on material as high osmosis, the protective layer of the epoxy resin of high-durability, and except close to tunnel
Outside the side of road construction joint, remaining marginal spray epoxy resin range exceeds pneumatically placed concrete boundary a distance, it is ensured that spray is mixed
Solidifying soil surface will not occur scaling-off and adversely affect to tunnel operation.
Preferably, needing to take protection to contact net, railway roadbed and rail in step (S5) into cavity when pneumatically placed concrete
Measure.
The present invention is by taking safeguard procedures to contact net, railway roadbed and rail, generation when avoiding the pneumatically placed concrete in cavity
Residue fall into contact net, railway roadbed and rail etc., influence tunnel operation.
Preferably, the diameter that row slurry pipe and Grouting Pipe use is φ 25 to φ 30, the material used is PVC, and phase
The spacing of adjacent injected hole is 18cm to 22cm.
Preferably, vault preliminary bracing behind in regulation range need to be verified in step (S1) before cavity blemish regulation
Closely knit situation.
The present invention renovates the closely knit situation of vault preliminary bracing behind in range by verifying before cavity blemish is renovated, and makes
Staff, which can have the overall condition of preliminary bracing and tunnel, adequately to be understood, and is arranged convenient for supplementing necessary regulation
It applies.
The invention has the following advantages:
The present invention will first be abolished in tunnel less than the lining cutting for cutting standard thickness and back cavity, be subsequent grouting operation
Operating space is provided, staff, which is expert to starch to open up injected hole on pipe and carry out non-closed sealing to injected hole, to be protected, and is avoided
Residue in row slurry pipe the procedures of establishment in cavity will not block injected hole, while slurry can break through non-closed sealing and to cavity
It is filled.When starching pipe full packages pulp simultaneously to be arranged on letting out in cavity, show behind gap or small in cavity regulation range
Empty full-filling is full, can stop slip casting, and the final back cavity slip casting for realizing lining concrete in tunnel makes tunnel reach reason
The stress thought.The present invention have design it is reasonable, of simple structure and low cost, operate conveniently, that construction safety is reliable etc. is excellent
Point can promote the use of cavity processing construction field or the cavity processing of mountain tunnel structure outside on the outside of urban subway tunnel structure
Construction field.
Detailed description of the invention
Fig. 1 is the sectional schematic diagram in tunnel in the present invention；
Fig. 2 is structural schematic diagram empty in the present invention；
Fig. 3 is the structural schematic diagram of row slurry pipe and Grouting Pipe cooperation in the present invention.
In figure: the cavity 1-；2- lining cutting；3- skylight；4- row slurry pipe；5- slurry outlet；6- Grouting Pipe；7- lets out slurry pipe；8- protection
Layer；The silent steel mesh of 9-；10- splash guard；11- preliminary bracing
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Embodiment 1
Referring to Fig. 1 to Fig. 3, a kind of filling of 2 mass defect blank of integrating tunnel lining cutting repairing provided by the invention
Slip casting method, successively the following steps are included:
(S1): verifying the closely knit situation of 11 behind of vault preliminary bracing in regulation range before empty 1 defect regulation, make work
Adequately understanding can be had to the overall condition of preliminary bracing 11 and tunnel by making personnel, be arranged convenient for supplementing necessary regulation
It applies.If empty 1 inner waterproofing plate 10 is tightened and not closely connected preliminary bracing 11, repairing splash guard 10 after cutting along longitudinal direction is needed to keep its close
Preliminary bracing 11 is pasted, the present invention repairs splash guard 10 after blank, and preliminary bracing 11 is avoided to repair in slip casting
Leakage occurs after journey and tunnel is adversely affected.
Then it is abolished in tunnel less than the lining cutting 2 for cutting standard thickness 20cm and back cavity 1, i.e. " Kaitian
Window " provides operating space for subsequent grouting operation.The regular shape of the skylight 3 and side of skylight 3 is with circular construction joint
Boundary, remaining 3 boundary lining cutting of skylight, 2 concrete thickness are not less than 20cm.The present invention is convenient for by using the skylight 3 of regular shape
Operator's operation, while 3 boundary lining cutting of skylight, 2 concrete thickness makes to put in a skylight the whole of structure after 3 regulations not less than 20cm
Body stability and safety, and improve its stress；
(S2): preparing two sets of row slurry 4 systems of pipe and equidistantly bore row's slurry outlet 5, row slurry pipe along the longitudinal top surface of row slurry pipe 4
4 diameters used is φ 30, and the material used is pvc pipe, and the spacing of adjacent injected hole is 20cm.It is expert at and starches the arrangement of pipe 4
It is preceding that non-closed sealing protection is carried out to injected hole, it is longitudinal by 5 seal of slurry outlet along row slurry pipe 4 with sealing compound, it avoids being expert at and starches pipe 4
Residue during laying and pneumatically placed concrete in cavity 1 will not block injected hole, while slurries can break through non-closed sealing simultaneously
Cavity 1 is filled.Then the surrounding along 3 cavity 1 of skylight lays row slurry pipe 4, needs to go in the procedures of establishment to starch pipe 4
It is close to waterproof layer arrangement in top surface；
(S3): starching 4 phase of pipe in radially arranged two Grouting Pipes 6 of the edge of skylight 3, and by three-way connection and row
Even；The diameter that Grouting Pipe 6 uses is φ 30 and the material that uses is pvc pipe.In the present invention staff by Grouting Pipe 6 to
Row slurry pipe 4 conveys slurry, and sprays from injected hole and tamp to cavity 1；
(S4): slurry pipe 7 is let out in the highest point setting in cavity 1, and the spacing on the top and waterproof layer of letting out slurry pipe 7 is not more than
1cm, the bottom end for letting out slurry pipe 7 are arranged outside tunnel-liner 2, to be arranged on when letting out slurry 7 full packages pulp of pipe, sky is shown in cavity 1
Behind gap or small empty 1 full-filling are full in chamber regulation range, can stop slip casting, understand in cavity 1 convenient for staff
Slip casting state.It avoids generating the situation that slip casting is insufficient or slip casting is excessive；
(S5): after being layered gunite concrete and concrete initial set into cavity 1, by 6 slip casting of Grouting Pipe until wait let out
After starching 7 full packages pulp of pipe, stop slip casting.No less than 3 layers of gunite concrete should be divided at cavity 1；And it need to be sprayed in the last layer
Slip casting in cavity is completed before penetrating concrete.The present invention avoids generating concrete receipts by carrying out multi-layer concrete injection to cavity 1
Not closely connected when contracting or applying and cause mending concrete still to there is for smaller empty 1 the case where behind, while by last
Slip casting in cavity is completed before one layer of gunite concrete and slip casting is made to reach ideal effect, and tunnel is made to be in ideal stress.
It is both needed to be laid with silent steel mesh 9 after every layer of gunite concrete, improves the structural strength of concrete at cavity 1, keep away
Exempt from that there is a situation where collapse, deform.Into cavity 1 when pneumatically placed concrete, need to take protection to arrange contact net, railway roadbed and rail
It applies, avoids the residue generated when the pneumatically placed concrete in cavity 1 from falling into contact net, railway roadbed and rail etc., influence tunnel operation；
(S6): before the concrete final set of injection, repairing receipts face being carried out to the concrete in 3 range of skylight, makes concrete
It is flushed with former lining cutting 2, and sprays protective layer 8 in concrete surface.The material that protective layer 8 uses is high osmosis, high-durability
Epoxy resin, and except close to construction joint of tunnel side in addition to, remaining marginal spray epoxy resin range exceeds spray coagulation
Native boundary 50cm.The present invention passes through sprayed on material as high osmosis, the protective layer 8 of the epoxy resin of high-durability, and removes and lean on
Outside the side of nearly construction joint of tunnel, remaining marginal spray epoxy resin range exceeds pneumatically placed concrete boundary a distance, it is ensured that
Pneumatically placed concrete surface will not occur slag-off phenomenon and adversely affect to tunnel operation.
The present invention will first be abolished in tunnel less than the lining cutting 2 for cutting standard thickness and back cavity 1, be grasped for subsequent slip casting
Make offer operating space, staff, which is expert to starch to open up injected hole on pipe 4 and carry out non-closed sealing to injected hole, to be protected, and is avoided
The residue starched in 4 the procedures of establishment of pipe in cavity 1 of being expert at will not block injected hole, while slurry can break through non-closed sealing and right
Cavity 1 is filled.It is empty behind in cavity regulation range to be arranged on when letting out slurry 7 full packages pulp of pipe, showing in cavity 1 simultaneously
Gap or small empty 1 full-filling are full, can stop slip casting, final 1 slip casting of back cavity for realizing lining concrete in tunnel 2.
Embodiment 2
With further reference to Fig. 2 to Fig. 3, the filling of 2 mass defect blank of the integrating tunnel lining cutting repairing of the present embodiment
Slip casting method is substantially the same manner as Example 1, and difference is, when the thickness of protection tier of 3 boundary of skylight is more than in step (S1)
When 15cm, the circumferential reinforcement that sky side implantation longitudinal pitch is 20cm should be faced in skylight 3, when thickness of protection tier is more than 20cm
It is then implanted into using with the welding of raw steel tendon protective layer using drilling implantation, when thickness of protection tier is less than 20cm.The present invention passes through
It is being implanted into circumferential reinforcement in skylight 3, is improving the stability of skylight 3 during the work time, while according to cover to reinforcement
Different-thickness takes different implantations, and perfect implantation effect while improves work efficiency.
The present invention will first be abolished in tunnel less than the lining cutting 2 for cutting standard thickness and back cavity 1, be grasped for subsequent slip casting
Make offer operating space, staff, which is expert to starch to open up injected hole on pipe 4 and carry out non-closed sealing to injected hole, to be protected, and is avoided
The residue starched in 4 the procedures of establishment of pipe in cavity 1 of being expert at will not block injected hole, while slurry can break through non-closed sealing and right
Cavity 1 is filled.It is empty behind in cavity regulation range to be arranged on when letting out slurry 7 full packages pulp of pipe, showing in cavity 1 simultaneously
Gap or small empty 1 full-filling are full, can stop slip casting, and final 1 slip casting of back cavity for realizing lining concrete in tunnel 2 makes
Tunnel reaches ideal stress.The present invention is reasonable, of simple structure and low cost with design, operates conveniently, construction safety
The advantages that reliable, can promote the use of cavity 1 on the outside of urban subway tunnel structure and handle outside construction field or mountain tunnel structure
Side cavity 1 handles construction field.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that including the article of a series of elements or equipment not only includes those elements, but also including not having
There is the other element being expressly recited, or further includes for this article or the intrinsic element of equipment.Do not limiting more
In the case where system, the element that is limited by sentence " including ... ", it is not excluded that also deposited in the article or equipment for including element
In other identical element.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of filling and injecting slurry method of integrating tunnel lining quality defect blank repairing, which is characterized in that successively include with
Lower step:
(S1): tunnel Arch lining thickness being less than and cuts standard thickness and puts in a skylight behind in the presence of the disease compared with macroscopic-void
Regulation；
(S2): preparing several row slurry pipes and equidistantly bore row's slurry outlet in top surface along row slurry pipe longitudinal direction, injected hole is carried out non-
Then closure sealing protection lays row slurry pipe along skylight cavity surrounding, need will to go the top surface of slurry pipe to be close in the procedures of establishment anti-
Water layer arrangement；
(S3): being connected in the radially arranged more Grouting Pipes of the edge of skylight, and by three-way connection with row slurry pipe；
(S4): slurry pipe is let out in the highest point setting in cavity, is let out the top of slurry pipe and the spacing of waterproof layer no more than 1cm, is let out slurry
The bottom end of pipe is arranged outside tunnel-liner；
(S5): by Grouting Pipe slip casting until full wait let out slurry pipe after being layered gunite concrete and concrete initial set into cavity
After pipe pulp, stop slip casting；
(S6): before the concrete final set of injection, spray concrete surface is cleared up with medium hard steel brush, flushes concrete with former lining cutting, and
Protective layer is sprayed in concrete surface.
2. the filling and injecting slurry method of integrating tunnel lining quality defect blank repairing according to claim 1, feature
It is, no less than 3 layers of gunite concrete should be divided at cavity in the step (S5)；And it need to be in the last layer gunite concrete
Preceding completion cavity internal pore slip casting.
3. the filling and injecting slurry method of integrating tunnel lining quality defect blank repairing according to claim 2, feature
It is, is both needed to be laid with silent steel mesh after every layer of gunite concrete.
4. the filling and injecting slurry method of integrating tunnel lining quality defect blank repairing according to claim 1, feature
It is, the regular shape of the skylight and side of skylight is using circular construction joint as boundary, remaining skylight boundary in the step (S1)
Locate lining concrete thickness and is not less than 20cm.
5. the filling and injecting slurry method of integrating tunnel lining quality defect blank repairing according to claim 4, feature
It is, when the thickness of protection tier of skylight boundary is more than 15cm, should face sky side implantation longitudinal pitch in skylight is 18cm
To the circumferential reinforcement of 22cm, it is implanted into when thickness of protection tier is more than 20cm using drilling, when thickness of protection tier is less than
20cm then welds implantation using with raw steel tendon protective layer.
6. the filling and injecting slurry method of integrating tunnel lining quality defect blank repairing according to claim 1, feature
Be, the step (S1) if in empty inner waterproofing plate tighten and not closely connected preliminary bracing, need to repair after cutting along longitudinal direction anti-
Water plate makes its closely connected preliminary bracing.
7. the filling and injecting slurry method of integrating tunnel lining quality defect blank repairing according to claim 1, feature
It is, the material that protective layer uses in the step (S6) removes for high osmosis, the epoxy resin of high-durability close to tunnel
Outside the side of road construction joint, remaining marginal spray epoxy resin range exceeds pneumatically placed concrete boundary 40cm to 60cm.
8. the filling and injecting slurry method of integrating tunnel lining quality defect blank repairing according to claim 1, feature
It is, when pneumatically placed concrete, needs to take safeguard procedures to contact net, railway roadbed and rail into cavity in the step (S5).
9. the filling and injecting slurry method of integrating tunnel lining quality defect blank repairing according to claim 1, feature
It is, the diameter that the row slurry pipe is used with Grouting Pipe is φ 25 to φ 30, and the material used is PVC, and adjacent injected hole
Spacing be 18cm to 22cm.
10. the filling and injecting slurry method of integrating tunnel lining quality defect blank repairing according to claim 1, feature
It is, in the step (S1) before cavity blemish regulation, the closely knit situation of vault preliminary bracing behind in regulation range need to be verified.
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| CN201910778648.4A CN110331993B (en) | 2019-08-22 | 2019-08-22 | Filling and grouting method combined with 'skylight opening' repair of tunnel lining quality defects |
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| CN201910778648.4A CN110331993B (en) | 2019-08-22 | 2019-08-22 | Filling and grouting method combined with 'skylight opening' repair of tunnel lining quality defects |
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| CN110331993B CN110331993B (en) | 2021-02-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966021A (en) * | 2019-12-20 | 2020-04-07 | 西南交通大学 | A renovate structure that is used for operation tunnel to strut large-scale cavity behind one's back |
| CN111206941A (en) * | 2020-01-15 | 2020-05-29 | 中铁十六局集团有限公司 | Tunnel lining thickness deficiency processing method |
| CN111561329A (en) * | 2020-05-11 | 2020-08-21 | 中铁十八局集团有限公司 | Method for repairing water permeable cavern below inverted arch of railway tunnel in water reservoir explosion roof |
| CN111706361A (en) * | 2020-06-04 | 2020-09-25 | 中铁大桥勘测设计院集团有限公司 | Steel frame back filling equipment in tunnel and construction method thereof |
| CN113323694A (en) * | 2021-06-29 | 2021-08-31 | 重庆科技学院 | Tunnel lining cavity negative pressure grouting process |
| CN113669083A (en) * | 2021-10-08 | 2021-11-19 | 中铁第一勘察设计院集团有限公司 | Tunnel repairing structure based on load conversion and cap type and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110966021A (en) * | 2019-12-20 | 2020-04-07 | 西南交通大学 | A renovate structure that is used for operation tunnel to strut large-scale cavity behind one's back |
| CN110966021B (en) * | 2019-12-20 | 2022-03-01 | 西南交通大学 | A renovate structure that is used for operation tunnel to strut large-scale cavity behind one's back |
| CN111206941A (en) * | 2020-01-15 | 2020-05-29 | 中铁十六局集团有限公司 | Tunnel lining thickness deficiency processing method |
| CN111561329A (en) * | 2020-05-11 | 2020-08-21 | 中铁十八局集团有限公司 | Method for repairing water permeable cavern below inverted arch of railway tunnel in water reservoir explosion roof |
| CN111561329B (en) * | 2020-05-11 | 2022-03-15 | 中铁十八局集团有限公司 | Method for repairing water permeable cavern below inverted arch of railway tunnel in water reservoir explosion roof |
| CN111706361A (en) * | 2020-06-04 | 2020-09-25 | 中铁大桥勘测设计院集团有限公司 | Steel frame back filling equipment in tunnel and construction method thereof |
| CN113323694A (en) * | 2021-06-29 | 2021-08-31 | 重庆科技学院 | Tunnel lining cavity negative pressure grouting process |
| CN113323694B (en) * | 2021-06-29 | 2024-02-20 | 重庆科技学院 | Negative pressure grouting process for tunnel lining cavity |
| CN113669083A (en) * | 2021-10-08 | 2021-11-19 | 中铁第一勘察设计院集团有限公司 | Tunnel repairing structure based on load conversion and cap type and construction method thereof |
| CN113669083B (en) * | 2021-10-08 | 2023-10-10 | 中铁第一勘察设计院集团有限公司 | Tunnel repairing structure based on load conversion and cap type and construction method thereof |
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