CN108194106B - The mobile pouring construction technique of tunnel bolt-spary supports concrete trolley - Google Patents
The mobile pouring construction technique of tunnel bolt-spary supports concrete trolley Download PDFInfo
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- CN108194106B CN108194106B CN201810160039.8A CN201810160039A CN108194106B CN 108194106 B CN108194106 B CN 108194106B CN 201810160039 A CN201810160039 A CN 201810160039A CN 108194106 B CN108194106 B CN 108194106B
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- Prior art keywords
- concrete
- trolley
- bolt
- slip form
- mobile
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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
- E21D11/10—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
-
- 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
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
Abstract
The present invention relates to constructing tunnel fields, specifically disclose the mobile pouring forms of tunnel bolt-spary supports concrete trolley and construction technology, specific step is as follows: step 1: by spray scar processing, step 2: concrete stirring, transport, step 3: closing hole wall, step 4: mobile pouring forms are in place, step 5: perfusion operation, step 6: maintenance.This method carries out bolt-spary supports successively by slip form trolley, avoids waste caused by concrete springback, and the construction time is short, high degree of automation reduces cost of labor.
Description
Technical field
The present invention relates to constructing tunnel fields.
Background technique
In constructing tunnel, according to the difference of tunnel rock category and excavated section, the excavation in tunnel be divided into full section method,
The construction methods such as benching tunneling method, partial excavation method.According to New Austrian Tunneling Method principle, bolt-spary supports is as in the permanent lining cutting in tunnel
A part, it is general consider to be used in III grade and the above country rock；Bolt-spary supports is completed as flexible support in secondary lining
Deflection is larger before, and it is reserved as deformation that excavation outer contour need to reserve biggish space (20cm)；Wherein bolt-spary supports
It must guarantee supporting and the country rock support system unified as one with surrounding rock body closing contact as far as possible and make jointly
With；New Austrian Tunneling Method construction allows country rock and supporting construction to generate limited deformation, is reduced with allowing the carrying for playing country rock effect
The stress of liner structure.And existing bolt-spary supports concrete is all directly to carry out shotcrete by spraying anchor arrangement, primary spray is certain
It reaches the shotcrete that certain solidification intensity carries out thickening operation again later to thickness etc., and shotcrete spends the time long, and springback capacity is big, coagulation
Native intensity is insufficient, and process control is poor and spray anchor arrangement is expensive, and maintenance cost is high.
Summary of the invention
It is all direct shotcrete, springback capacity it is an object of the invention to solve existing tunnel bolt-spary supports concrete ejection
Greatly, concrete wastes serious problem.
In order to achieve the above object, base case of the invention provides tunnel bolt-spary supports concrete trolley and is filled with mobile
Injection molded plate and construction technology, the specific steps are as follows:
Step 1: by spray scar processing, scar rinses floating dust, the landwaste by spray scar with high pressure water, when scar meets the water capacity
When easy deliquescence, argillization, scar is blown off using high-pressure blast；
Step 2: concrete stirring, transport, fully automatic culculating forced mixer is taken in the stirring of wet shot concrete, and transport uses
Concrete transportation tank car, with fortune with mixing, when jetting cement, more transport vehicles should replace haul；
Step 3: closing hole wall, is closed with the mode Jiang Dongbi of shotcrete and by the gap of face arch；
Step 4: mobile pouring forms are in place, construction trolley is moved to the position for needing to carry out bolt-spary supports, it is mobile
Arc track is ejected to certain perfusion position by ejecting mechanism, then passes through driving machine by the position for adjusting arc track
Slip form trolley is first moved to arc track one end by structure；
Step 5: perfusion operation, first sprays between slip form trolley surface and arch, after waiting concrete to dry, passes through driving
Mechanism drives slip form trolley successively to the mobile shotcrete of the arc track other end, then move while makes the rubber slab of slip form trolley
Movement is separated with concrete, is demoulded, rubber slab is resetted under effect in roller after demoulding, then carries out next section
Bolt-spary supports, be then repeated in above-mentioned movement, until this section of shotcrete is completed, then move arc track, carry out next section
Bolt-spary supports until complete；
Step 6: maintenance, after gunite concrete final set 2 hours, is conserved, curing time 14-16d, when temperature is low
It, must not sprinkling maintenance when 0-5 DEG C.
The Specific construction principle of 4th step and the 5th step is, when the bolt-spary supports for thering is arch to need to carry out concrete,
Construction trolley is moved to the position for needing to carry out bolt-spary supports, then moves the position for adjusting arc track, passes through ejection
Mechanism ejects arc track to certain position, and slip form trolley is first then moved to arc track one by driving mechanism
End starts to carry out shotcrete, first sprays between slip form trolley surface and arch, after waiting concrete to dry, driven by driving mechanism
Slip form trolley is mobile to the arc track other end, since concrete setting is between slip form trolley surface and arch, so when sliding
Mould trolley will drive rubber slab and pull toward opposite direction, and since rubber slab is wrapped in outside roller while mobile, institute
Rubber slab is also driven to a certain extent with roller to move toward opposite direction, so that slip form trolley is separated with concrete, into
Row demoulding, rubber slab is resetted under effect in roller after demoulding, then carries out next section of bolt-spary supports, then successively
Above-mentioned movement is repeated, until this section of shotcrete is completed, then moves arc track, carries out next section of bolt-spary supports until completing.
The beneficial effect of this base case is,
1, this method carries out bolt-spary supports successively by slip form trolley, avoids waste caused by concrete springback, and
And the construction time is short, high degree of automation reduces cost of labor.
2, the setting of this method ensure that the intensity of the bolt-spary supports of concrete, and easy to use, and seating velocity is fast.
Scheme two, this is the preferred of basic scheme, the driving mechanism in the 4th step include be located at it is electronic in construction trolley
Capstan winch, several directive wheels being located on arc track and the endless drive rope pulled by electric capstan, it is small that transmission rope connects sliding formwork
Vehicle.
Scheme three, this is the preferred of basic scheme, and the arc track bottom in the 4th step is equipped with walking on translation track
Moving wheel.
Scheme four, this is preferred for scheme three, and the translation track is located at construction trolley two sides at the wall of hole, it is described walk
Driving wheel position and quantity are and the corresponding setting of translation track.
Scheme five, this is preferred for scheme four, and the arc track is equipped with arc inflating rubber film close to face side.
When not installing arch progress bolt-spary supports, then after ejecting mechanism ejects arc track, arc inflating rubber film is given
It is inflated, is sealed, then carry out shotcrete operation.
Scheme six, this is the preferred of basic scheme, and in the 5th step, in concrete perfusion, concrete mix is parked
Time is 20-30min.Avoid to park makes concrete dry out very much long, is unfavorable for the use in later period.
Scheme seven, this is the preferred of basic scheme, in the 5th step, in concrete perfusion, and the temperature of operation area and mixing
The temperature that material enters wet-spraying machine is all larger than 5 DEG C.5 DEG C or less the injections and perfusion for being unfavorable for concrete, are also unfavorable for conserving
Scheme eight, this is preferred, the cobble-stone diameter in the 5th step, in concrete perfusion, in concrete of basic scheme
For 13-16mm.The limitation of cobble-stone diameter avoids the bad phenomenon of concrete quality, also strengthens whole intensity, reduces gas
The generation of bubble.
Scheme nine, this is the preferred of basic scheme, and in the 5th step, in concrete perfusion, clay content is in 2-3% in sand.
Detailed description of the invention
Fig. 1 is that tunnel of embodiment of the present invention bolt-spary supports concrete trolley movable type pouring forms and construction technology are applied
Work figure；
Fig. 2 is the structural schematic diagram of slip form trolley in Fig. 1.
Specific embodiment
Below by the further details of explanation of specific embodiment:
Appended drawing reference in Figure of description includes: translation track 1, arc track 2, slip form trolley 3, pulley 4, support plate
5, support 6, slip form trolley ontology 7, punching block 8, roller 9, roller 10, electric capstan 11, endless drive rope 12, moving wheel 13, arch
Frame 14, directive wheel 15, construction trolley 16.
The embodiment of the present invention is as depicted in figs. 1 and 2, and bolt-spary supports concrete trolley movable type in tunnel and is applied pouring forms
Work technique, the specific steps are as follows:
Step 1: by spray scar processing, general scar rinses floating dust, the landwaste by spray scar with high pressure water, when scar is met
When water is easy deliquescence, argillization, scar is blown off using high-pressure blast；
Step 2: concrete stirring, transport, fully automatic culculating forced mixer is taken in the stirring of wet shot concrete, and transport uses
Concrete transportation tank car, with fortune with mixing, when jetting cement, more transport vehicles should replace haul, to meet the supply of wet shot concrete；
Step 3: closing hole wall, is closed with the mode Jiang Dongbi of shotcrete and by the gap of face arch；
Step 4: mobile pouring forms are in place, need to use the mobile perfusion mould of tunnel bolt-spary supports concrete slip-form formula
Plate, including the translation track 1 being located in construction trolley 16, the arc track 2 that can be moved on translation track 1, can be in curved track
The driving mechanism of the slip form trolley 3, the driving walking of slip form trolley 3 walked on road 2 and the ejecting mechanism that arc track 2 can be ejected,
Driving mechanism includes the electric capstan 11 being located in construction trolley 16, several directive wheels 15 being located on arc track 2 and by electricity
The endless drive rope 12 that dynamic capstan winch 11 pulls, transmission rope connect slip form trolley 3, and ejecting mechanism includes several being located at construction trolley 16
On ejection cylinder and connection jacking cylinder knock-pin.
Translation track 1 is longitudinally located in construction trolley 16 along tunnel excavation direction, 2 shape of arc track and Tunnel wall shape
Shape matches, and 2 bottom of arc track is equipped with moving wheel 13 of the walking on translation track 1, and translation track 1 is located at construction trolley
16 two sides are at the wall of hole, and and the corresponding setting of translation track 1, arc track 2 is close to area for 13 position of moving wheel and quantity
Face side is equipped with arc inflating rubber film.
Slip form trolley 3 is equipped with several groups pulley 4 of the sliding on arc track 2, and pulley 4 is three-dimensional wheel.Three-dimensional wheel
So that 3 walking stability of slip form trolley is high, the pulley 4 is equipped with support plate 5, and support plate 5 is equipped with support 6, and support 6 is
Extension type support 6, support 6 are supported by slip form trolley ontology 7, and 7 left and right ends of slip form trolley ontology are arc-shaped, slip form trolley sheet
7 upper end level of body is connected with to match punching block 8 with Tunnel wall shape, and arcuately the sliding of 2 both ends of track connects slip form trolley ontology 7
It is connected to roller 10,7 periphery of slip form trolley ontology is surrounded with rubber slab, and punching block 8 and roller 10 are wrapped in interior by rubber slab.
Then construction trolley 16 is moved to the position for needing to carry out bolt-spary supports, the mobile position for adjusting arc track 2
It sets, by ejection cylinder structure by the ejection of arc track 2 to certain perfusion position, then passes through electric capstan 11 for slip form trolley 3
First it is moved to 2 one end of arc track；
Step 5: perfusion operation: when the bolt-spary supports for thering is arch 14 to need to carry out concrete, construction trolley 16 is mobile
To the position for needing to carry out bolt-spary supports, the position for adjusting arc track 2 is then moved, by ejecting mechanism by arc track
Certain position is arrived in 2 ejections, and slip form trolley 3 is first then moved to 2 one end of arc track by driving mechanism, starts to carry out
Shotcrete is first sprayed between 3 surface of slip form trolley and arch 14, after waiting concrete to dry, drives slip form trolley 3 by driving mechanism
It is mobile to 2 other end of arc track, since concrete setting is between 3 surface of slip form trolley and arch 14, so when sliding formwork is small
Vehicle 3 will drive rubber slab and pull toward opposite direction, and since rubber slab is wrapped in outside roller 10 while mobile, institute
Rubber slab is also driven to a certain extent with roller 10 to move toward opposite direction, so that slip form trolley 3 is separated with concrete,
It is demoulded, rubber slab is resetted under effect in roller 10 after demoulding, then carries out next section of bolt-spary supports, then
Be repeated in above-mentioned movement, until this section of shotcrete is completed, then move arc track 2, carry out next section of bolt-spary supports until
It completes.
When no arch 14 carries out combined bolting and shotcrete, then after ejecting mechanism ejects arc track 2, arc inflating rubber is given
Film is inflated, and is sealed, and then carries out bolt-spary supports according to above-mentioned movement, and can adjust by telescopic support 6
Slip form trolley ontology 7 with the distance between road hole wall, more accurately to carry out bolt-spary supports.
In concrete perfusion, the temperature that the temperature and mixture of operation area enter wet-spraying machine is all larger than 5 DEG C, in concrete
Cobble-stone diameter be 13-16mm, in concrete perfusion, clay content in 2-3%, the limitation of cobble-stone diameter avoids coagulation in sand
The bad phenomenon of soil property amount, also strengthens whole intensity, reduces the generation of bubble.
Step 6: maintenance, after gunite concrete final set 2 hours, is conserved, curing time 14d, when temperature is lower than 5
DEG C when, must not sprinkling maintenance.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (8)
1. the mobile pouring construction technique of tunnel bolt-spary supports concrete trolley, it is characterised in that:
Specific step is as follows:
Step 1: by spray scar processing, scar rinses floating dust, the landwaste by spray scar with high pressure water, when the scar chance water capacity is easy to damp
When solution, argillization, scar is blown off using high-pressure blast；
Step 2: concrete stirring, transport, fully automatic culculating forced mixer is taken in the stirring of wet shot concrete, and transport is transported using concrete
Defeated tank car, with fortune with mixing, when jetting cement, more transport vehicles should replace haul；
Step 3: closing hole wall, is closed with the mode Jiang Dongbi of shotcrete and by the gap of face arch；
Step 4: mobile pouring forms are in place, construction trolley is moved to the position for needing to carry out bolt-spary supports, mobile adjustment
The position of good arc track is ejected arc track to certain perfusion position by ejecting mechanism, then will by driving mechanism
Slip form trolley is first moved to arc track one end；Driving mechanism includes the electric capstan being located in construction trolley, is located at curved track
Several directive wheels on road and the endless drive rope by electric capstan pulling, transmission rope connect slip form trolley；It is set on slip form trolley
There is the several groups pulley slided on arc track, pulley is three-dimensional wheel；Three-dimensional wheel makes slip form trolley walking stability high,
The pulley is equipped with support plate, and support plate is equipped with support, and support is extension type support, and seat supports have slip form trolley sheet
Body, slip form trolley ontology left and right ends are arc-shaped, and slip form trolley ontology upper end level is connected with to match with Tunnel wall shape
Punching block, arcuately track both ends slidably connect roller to slip form trolley ontology, and slip form trolley body peripheral is surrounded with rubber slab, rubber
Punching block and roller are wrapped in interior by offset plate；
Step 5: perfusion operation, first sprays between slip form trolley surface and arch, after waiting concrete to dry, passes through driving mechanism
Slip form trolley is driven successively to the mobile shotcrete of the arc track other end, to make the rubber slab of slip form trolley mobile while mobile
It separates, is demoulded with concrete, rubber slab is resetted under roller effect after demoulding, then carries out next section of shotcrete
Then supporting is repeated in above-mentioned movement, until this section of shotcrete is completed, then move arc track, carry out next section of shotcrete
Supporting is until complete；
Step 6: maintenance, after gunite concrete final set 2 hours, is conserved, curing time 14-16d, when temperature is lower than 0-5
DEG C when, must not sprinkling maintenance.
2. bolt-spary supports concrete trolley in tunnel according to claim 1 is existed with mobile pouring construction technique, feature
In: the arc track bottom in the 4th step is equipped with moving wheel of the walking on translation track.
3. bolt-spary supports concrete trolley in tunnel according to claim 2 is existed with mobile pouring construction technique, feature
In: the translation track is located at construction trolley two sides at the wall of hole, and the moving wheel position and quantity are and translation track phase
It is correspondingly arranged.
4. bolt-spary supports concrete trolley in tunnel according to claim 3 is existed with mobile pouring construction technique, feature
In: the arc track is equipped with arc inflating rubber film close to face side.
5. bolt-spary supports concrete trolley in tunnel according to claim 1 is existed with mobile pouring construction technique, feature
In: in the 5th step, in concrete perfusion, the storage period of concrete mix is 20-30min.
6. bolt-spary supports concrete trolley in tunnel according to claim 1 is existed with mobile pouring construction technique, feature
In: in the 5th step, in concrete perfusion, the temperature that the temperature and mixture of operation area enter wet-spraying machine is all larger than 5 DEG C.
7. bolt-spary supports concrete trolley in tunnel according to claim 1 is existed with mobile pouring construction technique, feature
In: in the 5th step, in concrete perfusion, the cobble-stone diameter in concrete is 13-16mm.
8. tunnel bolt-spary supports concrete monoblock type pouring construction technique according to claim 1, it is characterised in that: the 5th
In step, in concrete perfusion, clay content is in 2-3% in sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810160039.8A CN108194106B (en) | 2018-02-26 | 2018-02-26 | The mobile pouring construction technique of tunnel bolt-spary supports concrete trolley |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810160039.8A CN108194106B (en) | 2018-02-26 | 2018-02-26 | The mobile pouring construction technique of tunnel bolt-spary supports concrete trolley |
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| CN108194106A CN108194106A (en) | 2018-06-22 |
| CN108194106B true CN108194106B (en) | 2019-09-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538250B (en) * | 2019-01-28 | 2023-09-15 | 中南大学 | Device and method for quick construction of tunnel primary support with mould sprayed concrete |
| CN110030012B (en) * | 2019-05-08 | 2020-09-25 | 长沙泽和智能科技有限公司 | Foldable arch frame type tunnel milling and excavating machine |
| CN114320364A (en) * | 2021-12-21 | 2022-04-12 | 洛阳中铁强力机械有限公司 | Tunnel spouts anchor auxiliary trolley |
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| DE10242574A1 (en) * | 2002-09-11 | 2004-03-18 | Max Bögl Bauunternehmung GmbH & Co. KG | Method for cutting a tunnel and erecting an overhead railway has the supports for the railway track attached to reinforcing and embedded in the sprayed concrete lining of the tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206329348U (en) * | 2016-12-23 | 2017-07-14 | 湖南五新隧道智能装备股份有限公司 | A kind of minitunnel lining trolley |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306150A (en) * | 2000-06-11 | 2001-08-01 | 郭兰波 | Reinforcing bar netted chock and netted-shell bolting and shotcrete support |
| DE10242574A1 (en) * | 2002-09-11 | 2004-03-18 | Max Bögl Bauunternehmung GmbH & Co. KG | Method for cutting a tunnel and erecting an overhead railway has the supports for the railway track attached to reinforcing and embedded in the sprayed concrete lining of the tunnel |
| WO2007006428A3 (en) * | 2005-07-09 | 2007-03-29 | Skumtech As | Construction of superstructures and infrastructures |
| CN205078283U (en) * | 2015-09-29 | 2016-03-09 | 贵州省公路工程集团有限公司 | Tunnel geotechnique's cloth, waterproof board shop cloth machine |
| CN107355237A (en) * | 2017-08-15 | 2017-11-17 | 中国路桥工程有限责任公司 | Sliding formwork of going through the motions sprays concrete excavation multifunctional tunnel chassis |
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| CN108194106A (en) | 2018-06-22 |
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