CN108301846A - Tunnel-liner vault band is molded into sizing device and its construction - Google Patents
Tunnel-liner vault band is molded into sizing device and its construction Download PDFInfo
- Publication number
- CN108301846A CN108301846A CN201810234548.0A CN201810234548A CN108301846A CN 108301846 A CN108301846 A CN 108301846A CN 201810234548 A CN201810234548 A CN 201810234548A CN 108301846 A CN108301846 A CN 108301846A
- Authority
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- China
- Prior art keywords
- grouting
- pipe
- slip casting
- grouting pipe
- exhaust pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Abstract
The invention discloses tunnel-liner vault bands to be molded into sizing device and its construction, and it includes preliminary bracing, splash guard, secondary lining and two lining formwork jumbos that band, which is molded into sizing device,；It is longitudinally arranged transversely arranged Grouting Pipe and exhaust pipe on the inside of splash guard vault；Grouting Pipe and exhaust pipe are fixed on by weld tabs on the inner surface of splash guard；One end of Grouting Pipe and exhaust pipe is equipped with the end socket for closure.Tunnel-liner vault band provided by the invention is molded into sizing device and its construction, Grouting Pipe and exhaust pipe are fixedly mounted on splash guard, after secondary lining concrete reaches final set, the slip casting to Grouting Pipe is completed before two lining formwork jumbo form removals, slip casting exhaustive, effect are good, and grouting with plunger and construction period is greatly reduced, and slip casting is individually carried out without the later stage, it is time saving and energy saving, save a large amount of labour cost.
Description
Technical field
The invention belongs to tunnel correlative technology fields, and in particular to tunnel-liner vault band is molded into sizing device and its construction work
Method.
Background technology
When Tunnel Second Lining concrete is poured using secondary template trolley, due to splash guard vault part generate air bag,
Concrete flowability is insufficient, filling concrete amount factors, the vault such as not enough will produce cavity, these cavities in casting process not
It easily finds, if found in lining cutting quality inspection, it will usually which drilling, tubulature, grouting filling in lining cutting, drilling easily damage waterproof
Plate can bury percolating water hidden danger.Empty position lining thickness is insufficient, Concrete intensity insufficient, and cracking, chip off-falling easily occurs, also can
Threaten traffic safety.
Invention content
For above-mentioned technical deficiency, the object of the present invention is to provide tunnel-liner vault band be molded into sizing device and its
Construction, cracking, chip off-falling occur for concrete when solving the problems, such as prior art middle and later periods filling cavity.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
The present invention provide tunnel-liner vault band be molded into sizing device, including be used to support preliminary bracing, setting in the early stage
Splash guard, concrete on the inside of supporting pour the secondary lining to be formed and the two lining moulds as slip casting platform on the inside of splash guard
Pallet vehicle；It is longitudinally arranged transversely arranged Grouting Pipe and exhaust pipe on the inside of the splash guard vault；The Grouting Pipe and exhaust
Guan Jun is fixed on by weld tabs on the inner surface of splash guard；One end of Grouting Pipe and exhaust pipe is equipped with the envelope for closure
Head.
Preferably, the weld tabs is arranged in the spacing in Grouting Pipe and exhaust pipe no more than 50cm.
A kind of tunnel-liner vault band is molded into the construction of sizing device, including：
A) Grouting Pipe and exhaust pipe are prepared：What the length for serving as a contrast formwork jumbos according to two, interception intensity and wall thickness were met the requirements
Two PVC floral tubes are drilled with excessive slurry according to length direction interval respectively respectively as Grouting Pipe and exhaust pipe, Grouting Pipe and exhaust pipe
Hole and gas vent, the extravasating hole in Grouting Pipe are closed with adhesive sticker, and the gas vent on exhaust pipe is closed with Breathable adhesive tape, Grouting Pipe
At two lining formwork jumbo end baffles extravasating hole is not being bored within the scope of 2m；
B) vault Grouting Pipe and exhaust pipe are installed：It, will along the longitudinal direction of splash guard with weld tabs after splash guard is completed in laying
Grouting Pipe and exhaust pipe are fixed on the inner surface of splash guard；
C) secondary lining concrete is poured：To the inside casting concrete of splash guard, secondary lining is formed；
D) injection slurry is prepared：It is 0.5 with proportioning:1 water and ash is prepared into cement mortar, and mixes to match in cement mortar and efficiently subtract
Aqua and swelling agent；
E) grouting equipment is installed：According to mud jacking equipment assembling sequence, successively by blender, slip casting machine, ball valve, pressure gauge,
Flowmeter, connecting tube, reducing and slip casting connector are spliced, and slip casting connector is attached with Grouting Pipe；
f)：Slip casting operation：After the pumping of concreting secondary lining terminates 8~12h, slip casting is proceeded by Grouting Pipe；
G) manually terminate slip casting：When the grouting pressure in Grouting Pipe reaches 1.0MPa, 3~5min of voltage stabilizing, meanwhile, flowmeter
When showing grouting amount without increasing, manually stop slip casting machine；
H) grouting equipment and component are removed：After slip casting, the grouting equipment being connect with Grouting Pipe is removed；Unload slip casting
Machine, longitudinal pre- applique pipe pore closure is closely knit, it is ready for two lining perfusions and the vault slip casting of subsequent cycle；
I) Grouting Pipe and exhaust pipe are blocked：After grouting equipment is removed, Grouting Pipe and exhaust pipe are blocked using end socket, it is accurate
The standby secondary lining for carrying out subsequent cycle pours and splash guard vault slip casting.
Preferably, the amount that the high efficiency water reducing agent matched is mixed in the aqueous slurry is 1%, and the amount of swelling agent is 10%.
Preferably, the flowmeter uses electromagnetic flowmeter.
The beneficial effects of the invention are as follows：
1) Grouting Pipe and exhaust pipe are fixedly mounted on splash guard, and after the completion of secondary lining pours, is once noted
Slurry can fill the cavity generated in secondary lining casting process, and whole process is compared to reserved injected hole Cementer before
Grouting with plunger and construction period is greatly reduced in skill；
2) when carrying out slip casting to Grouting Pipe, the uniform exhaustive of slip casting, slip casting effect is good；Slip casting is in secondary lining concrete
After reaching final set, is completed before two lining formwork jumbo form removals, ensure that grouting pressure can reach 1MPa, to improve coagulation
The compactness of grouting of soil, it is ensured that the safety of secondary lining；
3) it uses secondary lining inside pre-buried, while is carried out immediately after secondary lining pours completion, whole process
Not damaged to secondary lining, secondary lining ensure that the aesthetics of secondary liner structure without trace；
4) engineering method uses splash guard vault built-in slip casting pipe and exhaust pipe, is saved while ensureing slip casting effect big
The injecting paste material of amount.
5) engineering method carries out Grouting Pipe slip casting immediately after the completion of secondary lining concreting, is individually carried out without the later stage
Slip casting, whole process is simple and time saving and energy saving, saves a large amount of labour cost.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is that band is molded into sizing device process flow chart in the present invention；
Fig. 2 is slip casting optimal crosssection figure in the present invention；
Fig. 3 is Grouting Pipe and exhaust pipe scheme of installation in the present invention；
Fig. 4 is splash guard vault longitudinal direction Grouting Pipe schematic longitudinal section in the present invention.
Reference sign：
1- preliminary bracings, 2- splash guards, 3- secondary linings, 4- bis- serve as a contrast formwork jumbo, 5- Grouting Pipes, 6- exhaust pipes, 7- welderings
Piece, 8- end sockets.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figures 2 to 4, tunnel-liner vault band is molded into sizing device, including preliminary bracing 1, the setting being used to support
Splash guard 2, the concrete of 1 inside of supporting in the early stage pour the secondary lining 3 to be formed in 2 inside of splash guard and are put down as slip casting
Two lining formwork jumbos 4 of platform；It is longitudinally arranged transversely arranged Grouting Pipe 5 and exhaust pipe 6 on the inside of 2 vault of the splash guard；Institute
It states Grouting Pipe 5 and exhaust pipe 6 is fixed on the inner surface of splash guard 2 by weld tabs 7；One end of Grouting Pipe 5 and exhaust pipe 6
It is equipped with the end socket 8 for closure；Wherein, the distance of 6 lateral arrangement of Grouting Pipe 5 and exhaust pipe is 1m, avoids 2 vault of splash guard
Locate atmosphere draught-free, high pressure occur, and causes slurries that cannot enrich hole.
Preferably, the weld tabs 7 is arranged in the spacing in Grouting Pipe 5 and exhaust pipe 6 no more than 50cm；Ensure Grouting Pipe 5
It is close to 2 inner surface of splash guard with exhaust pipe 6, Grouting Pipe 5 and exhaust pipe 6 is avoided to shift or damage in lining concrete pushing
It is bad.
As shown in Figure 1, a kind of tunnel-liner vault band is molded into the construction of sizing device, including：
A) Grouting Pipe 5 and exhaust pipe 6 are prepared：According to the length of two lining formwork jumbos 4, intercepts intensity and wall thickness is met the requirements
Two PVC floral tubes respectively as Grouting Pipe 5 and exhaust pipe 6, Grouting Pipe 5 and exhaust pipe 6 are bored according to length direction interval respectively
There are extravasating hole and gas vent, the extravasating hole in Grouting Pipe 5 to be closed with adhesive sticker, prevents concrete slurry from entering Grouting Pipe 5；Exhaust
Gas vent on pipe 6 is closed with Breathable adhesive tape, in case slip casting initial stage slurries enter exhaust pipe 6 by gas vent by block exhaust pipe
6；Grouting Pipe 5 is not boring extravasating hole at two lining 4 end baffles of formwork jumbo within the scope of 2m, and concrete is first pumped into splash guard
2 vaults push flowing again, and Grouting Pipe 5 is immersed in concrete, and slurries are easy to enter in Grouting Pipe 5 from extravasating hole, cause
Slip casting is difficult to carry out, or erroneous judgement is full；Wherein, the specification of PVC floral tubes can be outer diameter 40mm, thickness 2.0mm, compression resistance
1.6MPa；The interval of extravasating hole in Grouting Pipe 5 and the gas vent on exhaust pipe 6 is 60cm, and diameter is 8mm；
B) installation vault Grouting Pipe 5 and exhaust pipe 6：After splash guard 2 is completed in laying, with weld tabs 7 along the longitudinal direction side of splash guard 2
To the inner surface that Grouting Pipe 5 and exhaust pipe 6 are fixed on to splash guard 2；Wherein, the size of weld tabs 7 is 30cm × 10cm, two pipes
Between distance be 1.0m；
C) secondary lining concrete is poured：To the inside casting concrete of splash guard 2, secondary lining 3 is formed；
D) injection slurry is prepared：It is 0.5 with proportioning:1 water and ash is prepared into cement mortar, and mixes to match in cement mortar and efficiently subtract
Aqua and swelling agent；
E) grouting equipment is installed：According to mud jacking equipment assembling sequence, successively by blender, slip casting machine, ball valve, pressure gauge,
Flowmeter, connecting tube, reducing and slip casting connector are spliced, and slip casting connector and Grouting Pipe 5 are attached；Wherein,
Slip casting machine uses screw pump, easily controllable and holding grouting pressure, it is ensured that slip casting is full；
f)：Slip casting operation：After the pumping of concreting secondary lining 3 terminates 8~12h, note is proceeded by Grouting Pipe 5
Slurry；
G) manually terminate slip casting：When the grouting pressure in Grouting Pipe 5 reaches 1.0MPa, 3~5min of voltage stabilizing, meanwhile, flow
When meter shows grouting amount without increasing, manually stop slip casting machine；
H) grouting equipment and component are removed：After slip casting, the grouting equipment being connect with Grouting Pipe 5 is removed；Unload bet
Pulp grinder, longitudinal pre- applique pipe pore closure is closely knit, it is ready for two lining perfusions and the vault slip casting of subsequent cycle；
I) Grouting Pipe 5 and exhaust pipe 6 are blocked：After grouting equipment is removed, Grouting Pipe 5 and exhaust are blocked using end socket 8
Pipe 6, the secondary lining 3 for being ready for subsequent cycle pours and 2 vault slip casting of splash guard；Wherein, end socket 8 can be cork,
Rubber stopper or geotextiles.
Preferably, the amount that the high efficiency water reducing agent matched is mixed in the aqueous slurry is 1%, and the amount of swelling agent is 10%, makes slip casting
The fluidity of liquid, expansion rate, intensity are satisfied by code requirement.
Preferably, the flowmeter uses electromagnetic flowmeter；Electromagnetic flowmeter is measured using Faraday's electromagnetic induction law
A kind of device of conductor fluid volume flow, its advantage is that resistance will not be generated to fluid, measurement result is accurately reliable.
Tunnel-liner vault band provided by the invention is molded into sizing device and its construction, is fixedly mounted on splash guard 2
Grouting Pipe 5 and exhaust pipe 6 are completed before two lining 4 form removals of formwork jumbo to note after 3 concrete of secondary lining reaches final set
The slip casting of pipe 5 is starched, slip casting exhaustive, effect are good, and grouting with plunger and construction period is greatly reduced, and are individually noted without the later stage
Slurry, it is time saving and energy saving, save a large amount of labour cost.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (5)
1. tunnel-liner vault band is molded into sizing device, which is characterized in that including be used to support preliminary bracing (1), be arranged first
Splash guard (2), concrete on the inside of phase supporting (1) pour the secondary lining to be formed (3) and as note on the inside of splash guard (2)
Starch two lining formwork jumbos (4) of platform；Be longitudinally arranged on the inside of splash guard (2) vault transversely arranged Grouting Pipe (5) and
Exhaust pipe (6)；The Grouting Pipe (5) and exhaust pipe (6) are fixed on by weld tabs (7) on the inner surface of splash guard (2)；Note
One end of slurry pipe (5) and exhaust pipe (6) is equipped with the end socket (8) for closure.
2. tunnel-liner vault band as described in claim 1 is molded into sizing device, which is characterized in that the weld tabs (7) is arranged in
Spacing in Grouting Pipe (5) and exhaust pipe (6) is not more than 50cm.
3. a kind of tunnel-liner vault band is molded into the construction of sizing device, which is characterized in that it is that right is wanted that band, which is molded into sizing device,
The band described in any one of 1 to 2 is asked to be molded into sizing device, including：
A) Grouting Pipe (5) and exhaust pipe (6) are prepared：According to the length of two lining formwork jumbos (4), intercepts intensity and wall thickness satisfaction is wanted
The two PVC floral tubes asked are respectively as Grouting Pipe (5) and exhaust pipe (6), and Grouting Pipe (5) and exhaust pipe (6) are respectively according to length
Direction interval is drilled with extravasating hole and gas vent, and the extravasating hole in Grouting Pipe (5) is closed with adhesive sticker, the exhaust on exhaust pipe (6)
Hole is closed with Breathable adhesive tape, and Grouting Pipe (5) is not boring extravasating hole at two lining formwork jumbo (4) end baffles within the scope of 2m；
B) installation vault Grouting Pipe (5) and exhaust pipe (6)：After splash guard (2) is completed in laying, with weld tabs (7) along splash guard (2)
Grouting Pipe (5) and exhaust pipe (6) are fixed on the inner surface of splash guard (2) by longitudinal direction；
C) secondary lining concrete is poured：To the inside casting concrete of splash guard (2), secondary lining (3) is formed；
D) injection slurry is prepared：It is 0.5 with proportioning:1 water and ash is prepared into cement mortar, and is mixed with high efficiency water reducing agent in cement mortar
And swelling agent；
E) grouting equipment is installed：According to mud jacking equipment assembling sequence, successively by blender, slip casting machine, ball valve, pressure gauge, flow
Meter, connecting tube, reducing and slip casting connector are spliced, and slip casting connector and Grouting Pipe (5) are attached；
f)：Slip casting operation：After concreting secondary lining (3) pumping terminates 8~12h, note is proceeded by Grouting Pipe (5)
Slurry；
G) manually terminate slip casting：When the grouting pressure in Grouting Pipe (5) reaches 1.0MPa, 3~5min of voltage stabilizing, meanwhile, flowmeter
When showing grouting amount without increasing, manually stop slip casting machine；
H) grouting equipment and component are removed：After slip casting, the grouting equipment that will be connect with Grouting Pipe (5) is removed；Unload slip casting
Machine, longitudinal pre- applique pipe pore closure is closely knit, it is ready for two lining perfusions and the vault slip casting of subsequent cycle；
I) Grouting Pipe (5) and exhaust pipe (6) are blocked：Grouting equipment remove after, using end socket (8) block Grouting Pipe (5) and
Exhaust pipe (6), the secondary lining (3) for being ready for subsequent cycle pours and splash guard (2) vault slip casting.
4. tunnel-liner vault band as claimed in claim 3 is molded into sizing device and its construction, which is characterized in that the water
The amount that the high efficiency water reducing agent matched is mixed in slurries is 1%, and the amount of swelling agent is 10%.
5. tunnel-liner vault band as claimed in claim 3 is molded into sizing device and its construction, which is characterized in that the stream
Gauge uses electromagnetic flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234548.0A CN108301846A (en) | 2018-03-21 | 2018-03-21 | Tunnel-liner vault band is molded into sizing device and its construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234548.0A CN108301846A (en) | 2018-03-21 | 2018-03-21 | Tunnel-liner vault band is molded into sizing device and its construction |
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| CN108301846A true CN108301846A (en) | 2018-07-20 |
Family
ID=62850199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810234548.0A Pending CN108301846A (en) | 2018-03-21 | 2018-03-21 | Tunnel-liner vault band is molded into sizing device and its construction |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139043A (en) * | 2018-10-29 | 2019-01-04 | 中铁工程装备集团有限公司 | One kind being adapted to effluent tunnel synchronization lining device and method |
| CN109578020A (en) * | 2018-11-26 | 2019-04-05 | 蓝传雯 | Method is sprayed using the mould of electromagnetism template |
| CN109630159A (en) * | 2019-01-11 | 2019-04-16 | 中铁十局集团第四工程有限公司 | Tunnel double-lining concrete casting system |
| CN109826649A (en) * | 2019-01-11 | 2019-05-31 | 中铁十一局集团第四工程有限公司 | Tunnel double-lining concrete casting system construction method |
| CN109882198A (en) * | 2019-01-11 | 2019-06-14 | 中铁十一局集团第四工程有限公司 | A kind of tunnel double-lining concrete vibrating system construction method |
| CN110045094A (en) * | 2019-03-01 | 2019-07-23 | 山东高速工程检测有限公司 | It is a kind of to prevent the detection device and detection method that tunnel double-lining vault comes to nothing |
| CN110273695A (en) * | 2019-07-13 | 2019-09-24 | 中国三冶集团有限公司 | A kind of Tunnel Second Lining formwork jumbo and its stage molding pouring procedure |
| CN110541718A (en) * | 2019-09-20 | 2019-12-06 | 中国建筑土木建设有限公司 | Secondary lining back backfill grouting pipe and grouting method |
| CN112593978A (en) * | 2020-12-04 | 2021-04-02 | 浙大城市学院 | Secondary lining vault anti-disengaging device and construction method |
| CN112610238A (en) * | 2020-12-15 | 2021-04-06 | 中国十九冶集团有限公司 | Joint for connecting pre-buried grouting pipe and tunnel secondary lining grouting method |
| CN113279785A (en) * | 2021-07-08 | 2021-08-20 | 中交一公局第一工程有限公司 | Method and device for processing vault hollow hole and local loose part of secondary lining of tunnel |
| CN113374502A (en) * | 2021-07-29 | 2021-09-10 | 中铁隧道集团一处有限公司 | Construction method for reinforcing cavity by splicing lining grouting based on mine method tunnel construction |
| CN113847065A (en) * | 2021-10-09 | 2021-12-28 | 中铁十九局集团第六工程有限公司 | Longitudinal pouring construction method for secondary lining vault |
| CN113898381A (en) * | 2021-10-09 | 2022-01-07 | 中铁二十三局集团第四工程有限公司 | Grouting method for prestressed lining |
| CN114046158A (en) * | 2021-11-19 | 2022-02-15 | 中交一公局集团有限公司 | Tunnel secondary lining vault reserved grouting construction method |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139043A (en) * | 2018-10-29 | 2019-01-04 | 中铁工程装备集团有限公司 | One kind being adapted to effluent tunnel synchronization lining device and method |
| CN109578020A (en) * | 2018-11-26 | 2019-04-05 | 蓝传雯 | Method is sprayed using the mould of electromagnetism template |
| CN109578020B (en) * | 2018-11-26 | 2020-06-30 | 蓝传雯 | Die spraying method using electromagnetic template |
| CN109826649B (en) * | 2019-01-11 | 2020-05-19 | 中铁十一局集团第四工程有限公司 | Construction method of tunnel secondary lining concrete pouring system |
| CN109630159A (en) * | 2019-01-11 | 2019-04-16 | 中铁十局集团第四工程有限公司 | Tunnel double-lining concrete casting system |
| CN109826649A (en) * | 2019-01-11 | 2019-05-31 | 中铁十一局集团第四工程有限公司 | Tunnel double-lining concrete casting system construction method |
| CN109882198A (en) * | 2019-01-11 | 2019-06-14 | 中铁十一局集团第四工程有限公司 | A kind of tunnel double-lining concrete vibrating system construction method |
| CN109630159B (en) * | 2019-01-11 | 2023-09-12 | 中铁十一局集团第四工程有限公司 | Tunnel secondary lining concrete pouring system |
| CN109882198B (en) * | 2019-01-11 | 2020-05-15 | 中铁十一局集团第四工程有限公司 | Construction method of tunnel secondary lining concrete vibrating system |
| CN110045094A (en) * | 2019-03-01 | 2019-07-23 | 山东高速工程检测有限公司 | It is a kind of to prevent the detection device and detection method that tunnel double-lining vault comes to nothing |
| CN110273695A (en) * | 2019-07-13 | 2019-09-24 | 中国三冶集团有限公司 | A kind of Tunnel Second Lining formwork jumbo and its stage molding pouring procedure |
| CN110541718A (en) * | 2019-09-20 | 2019-12-06 | 中国建筑土木建设有限公司 | Secondary lining back backfill grouting pipe and grouting method |
| CN112593978A (en) * | 2020-12-04 | 2021-04-02 | 浙大城市学院 | Secondary lining vault anti-disengaging device and construction method |
| CN112610238A (en) * | 2020-12-15 | 2021-04-06 | 中国十九冶集团有限公司 | Joint for connecting pre-buried grouting pipe and tunnel secondary lining grouting method |
| CN113279785A (en) * | 2021-07-08 | 2021-08-20 | 中交一公局第一工程有限公司 | Method and device for processing vault hollow hole and local loose part of secondary lining of tunnel |
| CN113279785B (en) * | 2021-07-08 | 2024-04-09 | 中交一公局第一工程有限公司 | Method and device for treating hollow and partial loose part of tunnel secondary lining vault |
| CN113374502A (en) * | 2021-07-29 | 2021-09-10 | 中铁隧道集团一处有限公司 | Construction method for reinforcing cavity by splicing lining grouting based on mine method tunnel construction |
| CN113847065A (en) * | 2021-10-09 | 2021-12-28 | 中铁十九局集团第六工程有限公司 | Longitudinal pouring construction method for secondary lining vault |
| CN113898381A (en) * | 2021-10-09 | 2022-01-07 | 中铁二十三局集团第四工程有限公司 | Grouting method for prestressed lining |
| CN114046158A (en) * | 2021-11-19 | 2022-02-15 | 中交一公局集团有限公司 | Tunnel secondary lining vault reserved grouting construction method |
| CN114046158B (en) * | 2021-11-19 | 2022-12-23 | 中交一公局集团有限公司 | Tunnel secondary lining vault reserved grouting construction method |
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