CN109441483A - The electromagnetism template poured is sprayed for tunnel mould - Google Patents
The electromagnetism template poured is sprayed for tunnel mould Download PDFInfo
- Publication number
- CN109441483A CN109441483A CN201811419862.2A CN201811419862A CN109441483A CN 109441483 A CN109441483 A CN 109441483A CN 201811419862 A CN201811419862 A CN 201811419862A CN 109441483 A CN109441483 A CN 109441483A
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- template
- unit
- electromagnetism
- poured
- spray
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- 239000007921 spray Substances 0.000 claims abstract description 66
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 231100000241 scar Toxicity 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 25
- 239000011378 shotcrete Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 14
- 238000010276 construction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 210000000245 forearm Anatomy 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses the electromagnetism template poured is sprayed for tunnel mould, electromagnetism template is the rollable structure of curtain, and is made of several modular units, the chain connection that all modular units are parallel to each other by two or more of back；Each modular unit is mounted on independent electromagnet, and has independent current supply circuit, and after the electromagnet of each modular unit is powered, both ends can be adsorbed on simultaneously on two adjacent steel arch-shelfs.The curtain electromagnetism template can cooperate with the mould spray apparatus, integral installation is on mould spray booth vehicle, curtain electromagnetism template can be adsorbed on tunnel steel arch frame, the die cavity poured is formed between electromagnetism template, steel arch-shelf and scar, so that spray head is in gunite concrete, the rebound path that concrete can effectively be stopped, solves the technical issues of concrete springback.
Description
Technical field
The one kind developed the invention belongs to Tunnel Engineering equipment technology field, in particular to gib whitewashing is used for tunnel
Road mould sprays the electromagnetism template poured.
Background technique
It is needed in the engineering construction that excavation face carries out gib in traditional tunnel etc., whitewashing mechanical arm mostly uses
The form of construction work directly sprayed in excavation face, in order to guarantee that concrete supporting can satisfy intensity requirement within a certain period of time,
Need to fill a large amount of additive or accelerator in concrete, and the concrete springback rate sprayed is high, whitewashing will have much
In 20% mixed mud spring back, cause the huge waste of construction material, be degrading scene construction environment, improve engineering at
This, while the temporary support structures directly whitewashed can have the intensity technical problems such as not enough.And its any surface finish after supporting molding
Degree is poor also to be needed to do Shape correction to its surface, extends construction period.Therefore developing a kind of can be effectively reduced guniting bounding
Rate, and the device for improving site operation environment seems very urgent.
Summary of the invention
It is an object of the invention to: it is directed to above-mentioned technical problem of the existing technology, is provided a kind of for tunnel mould
The electromagnetism template poured is sprayed, the concrete springback problem during whitewashing is effectively prevented.
The technical solution of the technology of the present invention is achieved in that including several modular units and connector, the template list
Member is parallel to each other, and is connected to become the rollable electromagnetism template of curtain by connector；Each modular unit is mounted on independence
Electromagnet, and there is independent current supply circuit, after the electromagnet of each modular unit is powered, both ends can be adsorbed on phase simultaneously
On two or more adjacent steel arch-shelfs so that be adsorbed in the modular unit on steel arch-shelf, steel arch-shelf and tunnel scar formed it is to be poured
The die cavity built.
It is of the present invention to spray the electromagnetism template poured, contact of each modular unit with steel arch-shelf for tunnel mould
Section is separately installed with electromagnet, and the electromagnet on same modular unit has independent control circuit, can control same template list
Electromagnet in member is connected to or disconnects simultaneously.
Of the present invention to spray the electromagnetism template that pours for tunnel mould, modular unit has corresponding more than two-part
Structure, and that can be connected by way of swing between adjacent segment.
Of the present invention to spray the electromagnetism template poured for tunnel mould, modular unit is three stage structure, including template
Master unit and the template pair unit for being connected to template master unit both ends, the electromagnet are mounted on the template pair unit at both ends.
Of the present invention to spray the electromagnetism template poured for tunnel mould, the template master unit and template pair unit are
Rectangular parallelepiped structure, and connected by bulb.
Of the present invention to spray the electromagnetism template poured for tunnel mould, the template pair unit includes opening pair facing forward
Unit U-board, and it is connected to the ball stud of pair unit U-board connecting pin, ball stud includes bulb plate and is fixed on bulb plate
Bulb, the bulb plate can be fixed on by welding in the end slot of pair unit U-board.
Of the present invention to spray the electromagnetism template poured for tunnel mould, the both ends of the pair unit U-board are further fixed on L
The fixed base plate of shape；The electromagnet is fixed on fixed base plate by dormant bolt.
Of the present invention to spray the electromagnetism template poured for tunnel mould, the template master unit includes opening master facing forward
Unit U-board is provided with hemisphere headstock in two end slots of master unit U-board, can be fixed bulb by bulb FE Tiler.
Of the present invention to spray the electromagnetism template poured for tunnel mould, the open side of master unit U-board is located at both ends
The master unit cover board for covering opening is provided between hemisphere headstock.
Of the present invention to spray the electromagnetism template poured for tunnel mould, all modular units pass through two or more of back
The chain connection being parallel to each other, the length of master unit U-board are greater than the length of pair unit U-board；Master unit U-board and pair unit
The back of U-board is respectively arranged with chain fixation hole, and the chain includes the chain unit equal with modular unit quantity, often
A chain unit is fixed with chain fixed plate, and chain fixed plate is fixed on corresponding chain fixation hole by bolt by chain unit
On.
The invention has the benefit that spray the electromagnetism template poured for tunnel mould by provided, and with the mould
Spray apparatus cooperation, can integral installation on mould spray booth vehicle, curtain electromagnetism template can be adsorbed on tunnel steel arch frame, electromagnetism template
The die cavity poured is formd between steel arch-shelf, so that spray head in gunite concrete, can effectively stop the rebound of concrete
Path solves the technical issues of concrete springback, significantly reduces constructing tunnel cost, and improves the construction of gib
Quality.
Detailed description of the invention
Fig. 1 is the whole stereoscopic schematic diagram of mould spray apparatus of the present invention；
Fig. 2 is the main view of mould spray apparatus of the present invention；
Fig. 3 is the connection stereoscopic schematic diagram that support frame of the present invention and template shore frame；
Fig. 4 is the connection top view that support frame of the present invention and template shore frame；
Fig. 5 is the stereoscopic schematic diagram of curtain electromagnetism template of the present invention；
Fig. 6 is the stereoscopic schematic diagram one of modular unit of the present invention；
Fig. 7 is the stereoscopic schematic diagram two of modular unit of the present invention；
Fig. 8 is the explosive view of template pair unit of the present invention；
Fig. 9 is the schematic diagram of mould spray booth vehicle of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The technology of the present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention.
As shown, having the mould spray apparatus of electromagnetism template, the mould spray apparatus includes preceding arm mechanism 1, support frame 2, mould
Plate shores frame 3, electromagnetism template 4 and spray head 5, and the preceding arm mechanism 1 is for being rotatably mounted to trolley revolution large arm, support
The front end of arm mechanism 1, template shore the top that support frame 2 is arranged in frame 3 before frame 2 is fixed on, and electromagnetism template 4 is equipped with electromagnet
43, can be adsorbed on tunnel steel arch frame by electromagnet in the energized state so that electromagnetism template 4 and steel arch-shelf and scar it
Between form die cavity, spray head 5 can be to the die cavity ejection supporting concrete formed between electromagnetism template 4 and steel arch-shelf.
Electromagnetism template 4 is the rollable structure of curtain, integrally can be similar to the state of rolling screen door.Electromagnetism template 4 is by several moulds
Plate unit composition, it is whole that two or more the chains 44 being parallel to each other that the modular unit passes through back are connected to become electromagnetism template 4
Body；Each modular unit is mounted on independent electromagnet 43, and has independent current supply circuit；When curtain electromagnetism template 4 is flat
Backrush is accommodated on driving roller 24, and after the electromagnet of each modular unit is powered, both ends can be adsorbed on adjacent two simultaneously
On steel arch-shelf more than root.
The modular unit includes template master unit 41 and the template pair unit 42 for being connected to 41 both ends of template master unit, institute
Electromagnet 43 is stated to be mounted on the template pair unit 42 at both ends.
The template master unit 41 and template pair unit 42 are rectangular parallelepiped structure, and are connected by bulb.
The template pair unit 42 includes pair unit U-board 421 and the bulb for being connected to 421 connecting pin of pair unit U-board
Pin 422, ball stud 422 include bulb plate 422a and the bulb 422b being fixed on bulb plate 422a, and the bulb plate 422a can
It is fixed in the end slot of pair unit U-board 421 by welding.
The both ends of the pair unit U-board 421 are further fixed on L-shaped fixed base plate 423, can be by being welded and fixed；It is described
Electromagnet 43 is fixed on fixed base plate 423 by dormant bolt.The absorption of the electromagnet 43 faces outwardly, and can directly adsorb in
On steel arch-shelf.
The template master unit 41 includes master unit U-board 411, and half is provided in two end slots of master unit U-board 411
Ball cup 412, and fixed bulb 422b by bulb FE Tiler 413.
The open side of master unit U-board 411, which is located between the hemisphere headstock 412 at both ends, is provided with master unit cover board 414.Institute
Stating master unit cover board 414 can be plate or be all U-board, and the opening for being flush to master unit U-board 411 is solid by welding
It is fixed.
The length of the template master unit 41 is greater than the length of the template pair unit 42.
The template master unit 41 of the curtain electromagnetism template 4 and the back of two Side Template pair units 42 are respectively arranged with chain
Fixation hole 45, the chain 44 are made of several chain units 441, and each chain unit 441 is welded with chain fixed plate 442,
And chain fixed plate 442 is fixed on corresponding chain fixation hole 45 by bolt.
Relative to modular unit be overall structure when, when two adjacent steel arch-shelfs have certain straggly, mould of monoblock type
Formation line contact between the electromagnet and steel arch-shelf at plate unit both ends, the active force of magnetic absorption reduce, and may be
Gap is formed between electromagnetism template 4 and steel arch-shelf, concrete is caused to reveal.And modular unit is arranged to three stage structure, and
On the template pair unit 42 that electromagnet 43 is installed to both ends, and pass through bulb between template pair unit 42 and template master unit 41
Connection, so that template pair unit 42 can have certain adjustment space relative to template master unit 41, accordingly even when adjacent steel arch
There is fluctuating straggly between frame, the adjustment of adaptability can also be done, so that electromagnet 43 keeps the face contact between steel bracket,
To increase adsorption capacity, and keep good leakproofness.
It includes two pieces or more the vertical top bracing plate|s 31 being parallel to each other that the template, which shores frame 3, and the front side of top bracing plate| 31 is along perpendicular
Several idler wheel 32 is shored to evenly spaced be provided with.
One or more support beam 33 is provided with after the vertical top bracing plate| 31, the support beam 33 and every piece erect
It is connected to compressed oil cylinder 331 is all passed through between top bracing plate| 31, while being also connected with counterbalance spring 332, counterbalance spring 332 is set in
On the piston rod of compressed oil cylinder 331.Two or more guiding crossbeams 34 are additionally provided with after the vertical top bracing plate| 31, every is led
The corresponding every piece of vertical top bracing plate| 31 of crossbeam 34 is provided with guide bearing 341, the guide bearing 341 is set in correspondence and is fixed on
On guiding axis 311 on vertical top bracing plate| 31.The support beam 33 is located at after guiding crossbeam 34, and the compressed oil cylinder
331 gaps being oriented between crossbeam 34 from adjacent two pass through.
More specifically, in the present embodiment, it includes 4 pieces of vertical top bracing plate|s 31 that the template shores frame 3 altogether, wherein intermediate
Two pieces of adjacent vertical top bracing plate|s 31 top and bottom between be respectively connected with connection roll shaft 312 and lower connection roll shaft 313,
Guide roller 312a is installed on the upper connection roll shaft 312, lower steering roll 313a is installed on lower connection roll shaft 313, and
The outer diameter of the lower steering roll 313a is equal to the outer diameter of the idler wheel 32, and the outer diameter of the upper guide roller 312a is greater than described shore
The outer diameter of idler wheel 32, but the guide roller 312a and the front end cambered surface for shoring idler wheel 32 on same top bracing plate| 31 keep neat
It is flat.The two pieces of adjacent vertical top bracing plate|s 31 in centre are connected to become entirety in this way, formation is intermediate to shore unit, is mainly used for shoring
The template master unit 41 of electromagnetism template 4；And the vertical top bracing plate| 31 of two sides forms the side for shoring unit independently of centre and shores list
Member is respectively used to shore the template pair unit 42 of electromagnetism template 4.Purpose is, is adapted between adjacent two steel arch-shelfs
When with certain dislocation, unit is shored in side still can withstand on phase for the template pair unit 42 at 4 both ends of electromagnetism template of curtain
On two adjacent steel arch-shelfs, to form strong support, so that the magnetic adhesive plaster between electromagnetism template 4 and steel arch-shelf is closer
With it is firm, avoid the appearance of " quick-fried mould ", concrete will not be from both ends side leakage；And unit is shored then in electromagnetism template 4 in centre
The template master unit 41 of center portion point forms powerful support, so that the die cavity stability formed is stronger.
It is respectively arranged with identical guiding big roller 321 at the top of two pieces of vertical top bracing plate|s 31 in the outside, it is described
The outer diameter for being oriented to big roller 321 is identical as the outer diameter of the upper guide roller 312a.
Preferably, the front side of the vertical top bracing plate| 31 is equipped with the arc being adapted with steel arch-shelf；Two pieces of outside are vertical
The spacing between two column support idler wheels 32 on top bracing plate| 31 is equal to the spacing between adjacent two steel arch-shelfs.
Preferably, annular groove 312b is respectively arranged in the middle part of upper guide roller 312a and lower steering roll 313a and annular is recessed
Slot 313b, for accommodating the chain 43 of centre one at 4 back of electromagnetism template, and two chains at 4 both ends of electromagnetism template are positioned at outer
In gap between the vertical top bracing plate| 31 in two pieces of side and adjacent vertical top bracing plate| 31.
Preferably, the chain 43 on the guide pulley 26 corresponding to electromagnetism template 4 is provided with annular groove and (does not show in figure
Out).
Support frame as described above 2 includes a connecting cross beam 21 in the front lower portion connection of the preceding arm mechanism 1, connecting cross beam
21 are connect by being fixed on the rotary hinged seating 211 of its top center with preceding arm mechanism 1, any side of the connecting cross beam 21
With preceding 1 front end of arm mechanism is ipsilateral is connected with lateral rotary oil cylinder 212, lateral rotary oil cylinder 212 can be used to adjust the side of support frame 2
To angle；Support frame as described above 2 further includes two longitudinal girders 22 being parallel to each other, and the rear end of two longitudinal girders 22 with it is described
Two end sides of connecting cross beam 21 are connected by shaft 213；The front top of the longitudinal girder 22 of two of support frame as described above 2 is also respectively set
It is equipped with the support vertical beam 23 being parallel to each other, the both ends of the support beam 33 are directly anchored on support vertical beam 23, described
The both ends of guiding crossbeam 34 are separately fixed on the front supported beam 231 for being welded in support 23 front end face of vertical beam；In longitudinal 22 He of girder
It is connected between support vertical beam 23 and reinforces inclined strut beam 221.
It is additionally provided with a driving roller 24 between the front end of the longitudinal girder 22 of two of support frame as described above 2, drives roller
24 can rotate forward or backwards under the action of drive motor 241.Driving roller 24 can be used for storing curtain when rotating in the forward direction
Electromagnetism template 4, when reverse rotation, can be used for discharging the electromagnetism template 4 of curtain.
Perpendicular to two longitudinal girders 22, and it is located at the support vertical beam 23 and is respectively arranged with two courts that are parallel to each other later
On secondary support vertical beam 25, be provided with a guide pulley 26, the orienting roll between the tops of two secondary support vertical beams 25
The two sides of cylinder 26 are fixed with two pieces of annular baffles 261, the orientation of the electromagnetism template 4 for correcting curtain, avoid becoming in its traveling
It obtains crooked.
Two front and back rotary oil cylinders 27 are also connected between the connecting cross beam 21 and secondary support vertical beam 25, for adjusting branch
The pitch angle of support 2, to be adapted to the laying of the electromagnetism template 4 at different height steel arch-shelf.Specifically, close to connecting cross beam
21 liang of lower end surfaces are provided with two downward under support beams 214, and the middle part of two secondary support vertical beams 25 is provided with opposite two inwardly
The collateral beam 251 of root, and the both ends of the front and back rotary oil cylinder 27 are connected under support beam 214 and collateral beam 251.
The upper end of the preceding arm mechanism 1 is equipped with head cartridge 6, and the spray head 5 is mounted on head cartridge 6, and is sprayed
First 5 can slide back and forth and horizontally slip automatically, can also adjust automatically pitch rotation angle and rotate left and right angle, specifically
, the top of the preceding arm mechanism 1 is provided with longitudinal slide rail 11, and head cartridge 6 passes through longitudinal slide 61 and is fixed on the longitudinal direction
On sliding rail 11.
The head cartridge 6 also includes horizontal slide rail 62 and longitudinally disposed nozzle arm 63, and the nozzle arm 63 passes through
Cross slide 631 is fixed in horizontal slide rail, and spray head 5 passes through the rotatable front end for being fixed on nozzle arm 63 of spray head supporting plate 51.
It is provided with spray head rotary oil cylinder 53 on the specific nozzle arm 63, is provided in the shaft of spray head rotary oil cylinder 53
Spray head supporting plate 51, the spray head 5 are hinged on spray head supporting plate 51, are also connected with spray head between the spray head supporting plate 51 and spray head 5
The cylinder body of pitching oil cylinder 52, the spray head pitching oil cylinder 52 is hinged on spray head supporting plate 51, and piston rod joins after spray head 5
Portion, to realize that the pitch angle to spray head 5 adjusts, 53 overall control spray head 5 of the spray head rotary oil cylinder rotation, to adjust spray head
5 penetrating angle/direction relative to die cavity.
Fig. 9 be mould spray booth vehicle specific structure, including trolley vehicle frame I, sliding rack II, sliding trolley III, large arm turntable IV,
Turn round large arm V, pumping mechanism VI.The preceding arm mechanism 1 is rotatably mounted to revolution large arm V by forearm attachment base 12
Front end, under the drive of revolution large arm V, by the effect of preceding arm mechanism 1, spray head 5 can be synchronous with electromagnetism template 4
It is mobile.
The tail end of the revolution large arm V is mounted on large arm turntable IV, and large arm turntable IV includes vertical rotary components, energy
Drive the front and back rotation in perpendicular of revolution large arm V；The large arm turntable IV further includes rotating horizontally component, can be driven
Large arm V is turned round to rotate horizontally.
The vertical rotary components of large arm turntable IV are gear rotary components, can drive revolution large arm V in perpendicular
Rotational angle can be more than 240 degree.Compared with the large arm of traditional engineering truck is supported by hydraulic cylinder and provides rotary power,
Traditional large arm can only achieve 60 degree or so in unilateral rotation angle, is unable to satisfy this mould spray booth vehicle at all and needs in tunnel
The mould that each section carries out full angle sprays demand.
It is longitudinally provided with sliding rack II along car body on the trolley vehicle frame I, sliding trolley III, institute are installed in sliding rack II
Large arm turntable IV is stated to be rotatably mounted on sliding trolley III；Sliding trolley III carries large arm turntable IV can be along sliding rack II
Longitudinal sliding motion.
The sliding trolley III in sliding rack II can the distance of straight skidding be greater than distance between adjacent two rows of steel arch-shelfs
III-IV times.Specifically, the length of sliding rack II can be equal to the width of three Pin steel arch-shelfs, namely be equal to adjacent four steel arches
(for engineering reality, the distance between adjacent two steel arch-shelfs are generally 1 to the distance between two steel arch-shelfs in outside of frame
Rice, then the length of sliding rack II is just 3 meters), it can guarantee moving distance of the sliding trolley III in sliding rack II so at least
It can reach the distance between two steel arch-shelfs in outside of adjacent three steel arch-shelfs.The width of this main needle electromagnetism template 4 can only be horizontal
It is wet can to meet continuous three Pin in the case where not moving vehicle in this way in conventional constructing tunnel to adjacent two steel arch-shelfs of covering
The mould of jet mould plate sprays work, avoids and frequently moves vehicle, influences the progress of construction.And it is directed to wider wet shot template, such as applicant
The three Pin wet shot templates invented can cover adjacent continuous four rows steel arch-shelf and be formed by three transverse mode controls, such to set
Meter is not just very necessary.Certainly, the length of sliding rack II does not limit the width equal to three Pin steel arch-shelfs, theoretically can be with platform
The length of vehicle carriage I is processed longer, is realized that single moves vehicle, can be sprayed the purpose for pouring broader tunnel face.The mould spray booth vehicle
It further include pumping mechanism VI, it can be from 5 delivering concrete wet shot material of trend spray head.
The workflow of above-mentioned mould spray apparatus are as follows: during construction, arm mechanism and electromagnetism template, template before adjusting
Frame etc. is shored, is adsorbed onto electromagnetism template on steel arch-shelf, forms the die cavity of height about one meter (height that template shores frame) left and right,
The angle for adjusting spray head starts to gunite concrete inside die cavity, and during injection, concrete is cumulative, forearm machine
Structure starts to move along steel arch-shelf, while preceding arm mechanism is mobile, drive motor rotation, while discharging the electromagnet mode on reel
Plate, by compressed oil cylinder, top bracing plate|, the devices such as spring-compensating are pressed to electromagnetism template on steel arch-shelf, while electromagnetism template obtains
Electricity is adsorbed on steel arch-shelf, forms new die cavity again.In the way of this movement, continuous moving support frame discharges template,
New die cavity is gradually formed, the continuous gunite concrete of spray head continuously carries out mould and sprays supporting, when reaching vault, stops
Gunite concrete, concrete to be sprayed is all after solidification, and electromagnet is by vault to lower end power loss, while drive motor one by one
It reversely rotates, cantilever crane, which synchronizes, to be moved down, and the recycling to electromagnet template is completed, and is realized without rebound, non-dusting continuous preliminary bracing.
Method is sprayed using the mould of electromagnetism template, described method includes following steps:
S1: mould spray booth garage enters the tunnel construction sections to be painted poured, and revolution large arm is opened in firing platform car exhibition, and revolution large arm takes support
Frame and curtain electromagnetism template excavation face wherein side close to the bottom of two adjacent steel arch-shelfs；
S2: electromagnetism template is located to one section before support frame and is close to two or more steel arch-shelfs, and and steel arch-shelf from bottom
Form die cavity to be poured；
S3: adjustment nozzle position and angle opens spray head and Open Side Down at the top of transverse mode control sprays into rapid hardening coagulation
Soil completes pouring for first section concrete；
S4: after section concrete solidification at the beginning of mold cavity bottoms, being affixed on of extending upwards of the modular unit of electromagnetism template is described
On steel arch-shelf, new die cavity is formed, when electromagnetism template extends, spray head is lasting to the modular unit and steel arch-shelf that newly release
Fast hardening concrete is sprayed into the die cavity newly formed, is poured with completing the preliminary bracing of this section unilateral excavation face.
It further include step S5, after top concrete solidification, revolution large arm is gradually moved down with support frame and electromagnetism template,
It drives roller to reversely rotate simultaneously, recycles curtain electromagnetism template；It turns round large arm to rotate horizontally with support frame and electromagnetism template, make
The other side of the electromagnetism template towards tunnel with section time is obtained, and repeats step S1-S4, completes the preliminary bracing of this section of tunnel other side
It pours.
In step S1 and S2, driving roller rotates in the forward direction under the action of drive motor, discharges curtain electromagnetism template, makes
The free end for obtaining electromagnetism template hangs down into its bottom and flushes with the bottom that template shores frame, adjusts the left-right position of support frame, with
Guarantee that the electromagnetism template of curtain can laterally cover the steel arch-shelf；Then the electromagnetism template being located at before support frame that will be released
Outer surface is tightly attached on steel arch-shelf, and guarantees that the bottom edge of electromagnetism template is contacted with tunnel excavation bottom surface, so that electromagnetism template, steel arch
Frame and tunnel bottom surface are enclosed with open-topped transverse mode control；
In step s 2: the power circuit of modular unit electromagnet is successively connected from the bottom up, so that contacting with steel arch-shelf
Modular unit magnetic absorption on steel arch-shelf；The pitch angle for adjusting support frame simultaneously, so that the outer surface of electromagnetism template is most
Limits are agreed with the radian of steel arch-shelf, and adjust revolution large arm template is made to shore frame and withstand electromagnetism template and steel arch-shelf
It is bonded section；
In step s 4, after section concrete solidification at the beginning of mold cavity bottoms, revolution large arm drives support frame gradually along steel arch-shelf
It moves up, while being again started up driving roller and continuously rotating in the forward direction, continuously to discharge the template list of curtain electromagnetism template
Member.
In step s 4, the rate of release with support frame of electromagnetism template move up that speed is equal, and guarantee newly to release
When modular unit and steel arch-shelf contact, institute's band electromagnet is powered immediately to be adsorbed on steel arch-shelf.
During support frame is moved up along steel arch-shelf, template is shored the idler wheel of shoring on frame and is rolled at the back of electromagnetism template
It crosses, while during scrolling, direct support is formed to electromagnetism template.
In the release of electromagnetism template and removal process, the central links in electromagnet mode backboard portion are from upper guide roller and lower steering roll
Annular groove in slip over；The chain of two sides is located at that unit is shored in centre and side is shored and slided between unit.
It is overlapped with the preliminary bracing concrete layer poured at left and right sides of section time tunnel in tunnel top, and in lap-joint
After tamping with template support, strike off, complete the supporting of described section time of tunnel contour.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. spraying the electromagnetism template poured for tunnel mould, it is characterised in that: including several modular units and connector, the template
Unit is parallel to each other, and is connected to become the rollable electromagnetism template of curtain by connector；Each modular unit is mounted on solely
Vertical electromagnet, and there is independent current supply circuit, after the electromagnet of each modular unit is powered, both ends can be adsorbed on simultaneously
On two or more adjacent steel arch-shelfs so that be adsorbed in the modular unit on steel arch-shelf, steel arch-shelf and tunnel scar formed to
The die cavity poured.
2. according to claim 1 spray the electromagnetism template poured for tunnel mould, it is characterised in that: each template list
Member and the contact-segment of steel arch-shelf are separately installed with electromagnet, and the electromagnet on same modular unit has independent control circuit,
It can control the electromagnet on same modular unit while being connected to or disconnecting.
3. according to claim 2 spray the electromagnetism template that pours for tunnel mould, it is characterised in that: modular unit has pair
The structure more than two-part answered, and that can be connected by way of swing between adjacent segment.
4. according to claim 3 spray the electromagnetism template poured for tunnel mould, it is characterised in that: modular unit is three sections
Formula structure, including template master unit and the template pair unit for being connected to template master unit both ends, the electromagnet is mounted on both ends
Template pair unit on.
5. according to claim 4 spray the electromagnetism template poured for tunnel mould, it is characterised in that: the template master unit
It is rectangular parallelepiped structure with template pair unit, and is connected by bulb.
6. according to claim 5 spray the electromagnetism template poured for tunnel mould, it is characterised in that: the template pair unit
Including the pair unit U-board facing forward that is open, and it is connected to the ball stud of pair unit U-board connecting pin, ball stud includes bulb plate
With the bulb being fixed on bulb plate, the bulb plate can be fixed on by welding in the end slot of pair unit U-board.
7. according to claim 6 spray the electromagnetism template poured for tunnel mould, it is characterised in that: the pair unit U-shaped
The both ends of plate are further fixed on L-shaped fixed base plate；The electromagnet is fixed on fixed base plate by dormant bolt.
8. according to claim 7 spray the electromagnetism template poured for tunnel mould, it is characterised in that: the template master unit
Including the master unit U-board facing forward that is open, it is provided with hemisphere headstock in two end slots of master unit U-board, bulb watt can be passed through
Lid fixes bulb.
9. according to claim 8 spray the electromagnetism template poured for tunnel mould, it is characterised in that: master unit U-board
Open side is located at the master unit cover board being provided between the hemisphere headstock at both ends for covering opening.
10. according to claim 9 spray the electromagnetism template poured for tunnel mould, it is characterised in that: all modular units
It is connected by two or more of the back chains being parallel to each other, the length of master unit U-board is greater than the length of pair unit U-board；
The back of master unit U-board and pair unit U-board is respectively arranged with chain fixation hole, and the chain includes and modular unit number
Equal chain unit is measured, each chain unit is fixed with chain fixed plate, and chain unit is consolidated chain fixed plate by bolt
It is scheduled on corresponding chain fixation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419862.2A CN109441483B (en) | 2018-11-26 | 2018-11-26 | Electromagnetic template for tunnel mould spray casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419862.2A CN109441483B (en) | 2018-11-26 | 2018-11-26 | Electromagnetic template for tunnel mould spray casting |
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| Publication Number | Publication Date |
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| CN109441483A true CN109441483A (en) | 2019-03-08 |
| CN109441483B CN109441483B (en) | 2024-02-13 |
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|---|---|---|---|
| CN201811419862.2A Active CN109441483B (en) | 2018-11-26 | 2018-11-26 | Electromagnetic template for tunnel mould spray casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396087A (en) * | 2020-04-02 | 2020-07-10 | 广东水电二局股份有限公司 | Device for reducing rebound rate of backfilled sprayed concrete |
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|---|---|
| CN109441483B (en) | 2024-02-13 |
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Effective date of registration: 20220104 Address after: No. 669, south section of Rongtai Avenue, Chengdu cross strait science and Technology Industrial Development Park, Wenjiang District, Chengdu, Sichuan 610000 Applicant after: SICHUAN BLUE OCEAN INTELLIGENT EQUIPMENT MANUFACTURING CO.,LTD. Address before: 643100 No. 2, floor 7, No. 92-3, North Street, Xuyang Town, Rong County, Zigong City, Sichuan Province Applicant before: Lan Chuanwen |
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