CN109826651A - A kind of single-track tunnel two serves as a contrast concrete automation steam curing system and construction method - Google Patents
A kind of single-track tunnel two serves as a contrast concrete automation steam curing system and construction method Download PDFInfo
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- CN109826651A CN109826651A CN201910101285.0A CN201910101285A CN109826651A CN 109826651 A CN109826651 A CN 109826651A CN 201910101285 A CN201910101285 A CN 201910101285A CN 109826651 A CN109826651 A CN 109826651A
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- arch
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- tunnel
- steam curing
- lining
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Abstract
The invention discloses a kind of single-track tunnel two lining concretes to automate steam curing system, including the arch for being placed in tunnel and being moved towards with it and arch is consistent, there are spaces between arch and tunnel-side, there is heat preservation rubber slab on arch annular surface, rubber curtain head is provided at the both ends of arch, heat preservation rubber slab and rubber curtain head define the cavity of open topped, and when being placed in tunnel, cavity and tunnel double-lining face form enclosure space；On the arch and within the cavity be intervally arranged has multiple longitudinally disposed jet chimneys, is spaced apart on each jet chimney along its trend and is equipped with multiple steam (vapor) outlets, and steam (vapor) outlet is for spraying vapor towards tunnel double-lining face in the enclosed space.The steam curing system controls the environment temperature and humidity during concrete curing, realizes intelligent maintaining operation, and the maintenance of two lining concretes has been effectively ensured.
Description
Technical field
The invention belongs to technical field of tunnel construction, and in particular to a kind of lining of single-track tunnel two concrete automation steam curing system
System and construction method.
Background technique
Tunnel Engineering is typical mass concrete engineering, due to the reason of hydration heat of cement, when concreting is complete
Cheng Hou, need in time conserve just can effectively prevent concrete because solidification shrinkage stress generation crack, with meet concrete strength and
Life requirement.Concrete curing generallys use spray maintenance method under the prior art, but since spray maintenance water temperature is not easy to control
System, the coolant-temperature gage and concrete temperature of ejection mismatch, and accelerate the damage to two lining concrete qualities, and support using spray
Shield needs to lay big water column, not only easy blocking water pipe, but also water resource waste is serious, while the moisture being scattered at the scene is to applying
Work operating environment has larger impact.Meanwhile the tunnel of severe cold area due to environment temperature it is too low, two lining concrete are vulnerable to freezing and mixed
Solidifying soil internal and external temperature difference is excessive, such as it cannot be guaranteed that certain curing temperature, easily causes two lining concrete to generate crack, reduces
The presentation quality of lining.
Ambient humidity in single-track tunnel of especially growing up is extremely unstable, spray maintenance water temperature differed with tunnel inner concrete compared with
Greatly, two lining concrete surfaces are caused to crack, intensity deficiency, durability is greatly affected.After the casting of tunnel double-lining concrete, how to support
Shield is to be worth an important topic of railway engineering tunnelling research.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of single-track tunnel two
Concrete automation steam curing system and construction method are served as a contrast, the environment temperature and humidity during concrete curing are controlled, realizes intelligence
Change maintenance work, the maintenance of two lining concretes has been effectively ensured.
In order to solve the above technical problems, the technical solution adopted by the present invention is that, a kind of lining of single-track tunnel two concrete automation steaming
Vapour curing system, including the arch for being placed in tunnel and being moved towards with it and arch is consistent, between arch and tunnel-side
There are spaces, there is heat preservation rubber slab on arch annular surface, are provided with rubber curtain head at the both ends of arch, keep the temperature rubber slab
The cavity of open topped is defined with rubber curtain head, when being placed in tunnel, cavity and tunnel double-lining face form enclosure space；
On the arch and within the cavity be intervally arranged has multiple longitudinally disposed jet chimneys, walks on each jet chimney along it
Multiple steam (vapor) outlets are equipped with to being spaced apart, steam (vapor) outlet is for spraying vapor towards tunnel double-lining face in the enclosed space.
It further, further include the water tank and steam generator being connected, steam generator is connected with jet chimney.
Further, on arch and within the cavity multiple Temperature Humidity Sensors are arranged at intervals with.
The invention also discloses a kind of steam curing trolleys, which is characterized in that serves as a contrast concrete certainly including above-mentioned single-track tunnel two
Dynamicization steam curing system, arch are set on skeleton, and the cross section of skeleton is door shape, arch by scalable logical beam with
Skeleton is connected.
Further, which is detachably connected with lining trolley, drives its advance by lining trolley.
Further, lift cylinder is provided on skeleton, the end of lift cylinder is connected with arch, for driving arch
Frame rises or falls.
The invention also discloses a kind of construction methods of steam curing trolley, comprising the following steps:
Step 1, steam curing trolley is walked:
Steam curing trolleys walking is pulled by two lining trolleys, guarantees that skeleton 2 is placed in the middle when walking；
Step 2, steam curing trolley is in place；
Lift cylinder is gone up and down, cavity and tunnel double-lining face is made to form enclosure space；Then lift cylinder is fallen.
Step 3, steam curing trolley conserves；
Step 3.1. opens steam generator, it is allowed to generate steam.
Step 3.2. successively carry out heating maintenance stage-thermostatic curing stage-cooling maintenance stage, eventually drop to outside
Portion's temperature is consistent；
Step 4, it demoulds:
Start to demould after maintenance, steam curing trolley and lining trolley synchronous walking, carries out next section of maintenance.
A kind of single-track tunnel two of the present invention serves as a contrast concrete automation steam curing system and construction method has the advantages that 1. adopt
Environment temperature and humidity during concrete curing can more preferably, be more accurately controlled with automation steam curing, is effectively ensured
The maintenance of two lining concretes.2. steam curing system pulls walking with two lining trolleys, walking is convenient, and 3. intervene without personnel, subtracts
The labor intensity for having lacked worker improves maintenance efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that single-track tunnel two of the invention serves as a contrast concrete automation steam curing system；
Fig. 2 is steam generator and steam pipe connection figure；
Wherein: 1. running gears；2. skeleton；3. arch；4. logical beam；5. keeping the temperature rubber slab；6. steam generator；7. water
Case；8. jet chimney.
Specific embodiment
A kind of single-track tunnel two of the present invention serves as a contrast concrete and automates steam curing system, as depicted in figs. 1 and 2, including for putting
It is placed in tunnel and is moved towards with it and arch 3 that arch is consistent, there are spaces between arch 3 and tunnel-side, in 3 ring of arch
It is provided with heat preservation rubber slab 5 on shape surface, is provided with rubber curtain head at the both ends of arch 3, keeps the temperature rubber slab 5 and rubber curtain head
The cavity of open topped is defined, when being placed in tunnel, cavity and tunnel double-lining face form enclosure space, with tunnel double-lining
Closed space is formed between face；The lower end of arch 3 is closed also by rubber curtain cloth, on arch 3 and between circumferential direction within the cavity
Every being placed with multiple longitudinally disposed jet chimneys 8, multiple steam (vapor) outlets are arranged at intervals with along its trend on each jet chimney 8,
Steam (vapor) outlet is for spraying vapor towards tunnel double-lining face in the enclosed space.In actual work, rubber slab 5 and two linings are kept the temperature
Face is at a distance of 150mm.
It further include the water tank 7 and steam generator 6 being connected, steam generator 6 is connected with jet chimney 8.Steam hair
Temperature sensor and humidity sensor are provided in raw device 6；On arch 3 and it is within the cavity it is circumferentially spaced-apart be provided with it is multiple
Temperature Humidity Sensor.The more accurately environment temperature and humidity during control concrete curing.Arch 3 is set on skeleton 2, bone
The cross section of frame 2 is door shape, and arch 3 is mounted on skeleton 2 by scalable logical beam 4.Logical beam 4 be it is multiple, it is circumferentially spaced
Setting.
Invention additionally discloses a kind of steam curing trolleys, serve as a contrast concrete including above-mentioned single-track tunnel two and automate steam curing system
System, further includes the skeleton 2 that can be walked, and arch 3 is set on skeleton 2, and the cross section of skeleton 2 is door shape, and arch 3 is by that can stretch
The logical beam 4 that contracts is mounted on skeleton 2.Feed screw apparatus may be selected in logical beam 4.
The steam curing trolley is set to the rear of trolley in tunnel, is detachably connected with lining trolley, by lining trolley
Drive its advance.The length of steam curing trolley and the length of lining trolley are consistent, to spray to corresponding one group of lining cutting.
Steam curing trolley is connected with the otic placode on lining trolley door beam by wearing pin, realizes that lining trolley pulls steam
Maintenance trolley is mobile, does not need to increase additional power device, walking is convenient.Width and trolley between two heel posts of skeleton 2
Width it is consistent, running gear 1 is provided with below column.Running gear 1 uses rubber tyre.It is provided on skeleton 2
The end of lift cylinder, lift cylinder is connected with arch 3, for driving arch 3 to rise or fall.
The invention also discloses a kind of construction methods of steam curing trolley, comprising the following steps:
Step 1, steam curing trolley is walked:
Steam curing trolleys walking is pulled by two lining trolleys, guarantees that skeleton 2 is placed in the middle when walking；
Step 2, steam curing trolley is in place；
Lift cylinder is gone up and down, makes to keep the temperature rubber slab 5 towards the movement of tunnel-side side, cavity is formed with tunnel double-lining face and closed
Space guarantees sealing.Then steam curing trolley lift cylinder is fallen.
Step 3, steam curing trolley conserves；
Step 3.1. opens steam generator 6, it is allowed to generate steam.
Step 3.2. successively carries out such as the next stage: heating maintenance stage-thermostatic curing stage-cooling maintenance stage, most
Final decline is to consistent with external temperature；
Step 4, it demoulds:
It is demoulded after maintenance, makes steam curing trolley and lining trolley synchronous walking, carry out next section of maintenance.
In the system, steam generator 6 is arranged two, and electric cabinet is arranged one, Temperature Humidity Sensor and steam generator 6
It is connected with electric cabinet.Water tank 7 is arranged among 2 top operating platform of skeleton；Steam generator 6 is mounted on 2 top of skeleton
Operating platform both ends；Electric cabinet is mounted on any side in operating platform both ends；Temperature Humidity Sensor totally 6,2 top of skeleton
2 greenhouse sensors are installed, are located at top both ends apart from 2 meters of end；1 greenhouse sensing is each side installed at haunch
Device is located at rear end apart from 2 meters of end, hangs on jet chimney 8 relative to heat preservation 5 base vertical height 4496mm of rubber slab
Side；Bottom each side installs 1, and relative to heat preservation 5 base vertical height 1383mm of rubber slab, front end is apart from rubber curtain head
Two meters, hang on 8 top of jet chimney.
Steam pipework 8 can divide three groups, and the entrance of every two steam pipework 8 is equipped with high temperature solenoid valve, high temperature resistant electricity
Magnet valve is separately mounted to two sides and top in ring seal space.
A kind of concrete construction method of steam curing trolley is as follows:
Step 1, steam curing trolley is walked:
Steam curing trolleys walking is pulled by two lining trolleys, guarantees that maintenance trolley is placed in the middle when walking.
Step 2, steam curing trolley is in place:
By worker's hand-operated lifting lift cylinder, so that cavity and tunnel double-lining face is formed enclosure space, guarantee sealing.
Step 3, steam curing trolley conserves:
Step 3.1 opening steam generation: 6, allow it to generate steam.
Step 3.2, which is pressed, starts to conserve button implementation automatic maintenance, first carries out 5h heating, temperature rate-of-rise is no more than 10
DEG C/h, temperature reach 50 DEG C after enter the constant temperature stage, maintenance regional temperature stablize about 50 DEG C constant temperature for 24 hours, subsequently into
Cooling stage, cooling stage rate of temperature fall are no more than 5 DEG C/h, and when the rate of temperature fall in some region is greater than 5 DEG C/h, system can be certainly
The dynamic corresponding motor-driven valve of opening to decline temperature slowly in defined rate to local heating, eventually drops to and outside temperature
Degree remains basically stable.
Step 4, it demoulds:
Start to demould after opening steam curing 36h, steam curing trolley and lining trolley synchronous walking, carries out next section and support
Shield.
Steam curing trolley stops the stage and to cooling stage fully achieves automation from quiet, intervenes without personnel, reduces
The labor intensity of worker, improves maintenance efficiency, two lining coagulation soil cracking caused by effectively controlling because of reasons such as maintenance water temperatures
Line ensure that the quality of concrete.
Claims (7)
1. a kind of single-track tunnel two serves as a contrast concrete and automates steam curing system, which is characterized in that including for being placed in tunnel and
It is moved towards with it and arch (3) that arch is consistent, there are spaces between the arch (3) and tunnel-side, in the arch (3) ring
It is provided with heat preservation rubber slab (5) on shape surface, is provided with rubber curtain head, the heat preservation rubber at the both ends of the arch (3)
Plate (5) and rubber curtain head define the cavity of open topped, and when being placed in tunnel, the cavity is formed with tunnel double-lining face
Enclosure space；On the arch (3) and within the cavity be intervally arranged has multiple longitudinally disposed jet chimneys (8), each to steam
It is spaced apart on steam pipe road (8) along its trend and is equipped with multiple steam (vapor) outlets, the steam (vapor) outlet is used in the enclosed space towards tunnel
Two facings of road sprays vapor.
2. a kind of single-track tunnel two according to claim 1 serves as a contrast concrete and automates steam curing system, which is characterized in that also wrap
The water tank (7) and steam generator (6) being connected are included, the steam generator (6) is connected with jet chimney (8).
3. a kind of single-track tunnel two according to claim 1 or 2 serves as a contrast concrete and automates steam curing system, which is characterized in that
On the arch (3) and within the cavity it is arranged at intervals with multiple Temperature Humidity Sensors.
4. a kind of steam curing trolley, which is characterized in that serve as a contrast concrete including single-track tunnel two of any of claims 1-3
Steam curing system is automated, further includes the skeleton (2) that can be walked, the cross section of the skeleton (2) is door shape, the arch
(3) it is mounted on skeleton (2) by scalable logical beam (4).
5. a kind of steam curing trolley according to claim 4, which is characterized in that the steam curing trolley and lining trolley
It is detachably connected, its advance is driven by lining trolley.
6. a kind of steam curing trolley according to claim 5, which is characterized in that be provided with and mention on the skeleton (2)
The end of oil-lifting jar, the lift cylinder is connected with arch (3), for driving arch (3) to rise or fall.
7. a kind of construction method of steam curing trolley according to any one of claim 4-6, comprising the following steps:
Step 1, steam curing trolley is walked:
Steam curing trolleys walking is pulled by two lining trolleys, guarantees that skeleton 2 is placed in the middle when walking；
Step 2, steam curing trolley is in place；
Lift cylinder is gone up and down, so that cavity and tunnel double-lining face is formed enclosure space, guarantees sealing；Lift cylinder is fallen；
Step 3, steam curing trolley conserves；
Step 3.1. opens steam generator (6), it is allowed to generate steam.
Step 3.2. successively carries out heating maintenance stage-thermostatic curing stage-cooling maintenance stage to tunnel double-lining face, finally
It drops to consistent with external temperature；
Step 4, it demoulds:
It is demoulded after maintenance, makes steam curing trolley and lining trolley synchronous walking, carry out next section of maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910101285.0A CN109826651A (en) | 2019-01-31 | 2019-01-31 | A kind of single-track tunnel two serves as a contrast concrete automation steam curing system and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910101285.0A CN109826651A (en) | 2019-01-31 | 2019-01-31 | A kind of single-track tunnel two serves as a contrast concrete automation steam curing system and construction method |
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| Publication Number | Publication Date |
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| CN109826651A true CN109826651A (en) | 2019-05-31 |
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ID=66863166
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910101285.0A Pending CN109826651A (en) | 2019-01-31 | 2019-01-31 | A kind of single-track tunnel two serves as a contrast concrete automation steam curing system and construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365023A (en) * | 2020-03-30 | 2020-07-03 | 安徽华骅桥梁设备制造有限公司 | Automatic maintenance equipment of high-efficient constant temperature and humidity tunnel |
| CN111980723A (en) * | 2020-09-07 | 2020-11-24 | 中国铁建重工集团股份有限公司 | Tunnel secondary lining concrete trolley maintenance system |
| CN112919929A (en) * | 2021-02-07 | 2021-06-08 | 中国铁建重工集团股份有限公司 | Steam type maintenance trolley and construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365023A (en) * | 2020-03-30 | 2020-07-03 | 安徽华骅桥梁设备制造有限公司 | Automatic maintenance equipment of high-efficient constant temperature and humidity tunnel |
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| CN112919929A (en) * | 2021-02-07 | 2021-06-08 | 中国铁建重工集团股份有限公司 | Steam type maintenance trolley and construction method |
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Application publication date: 20190531 |
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