CN108625881A - Two grommets with mobile arc track are to reinforcing steel bar laying trolley and laying method - Google Patents
Two grommets with mobile arc track are to reinforcing steel bar laying trolley and laying method Download PDFInfo
- Publication number
- CN108625881A CN108625881A CN201810727032.XA CN201810727032A CN108625881A CN 108625881 A CN108625881 A CN 108625881A CN 201810727032 A CN201810727032 A CN 201810727032A CN 108625881 A CN108625881 A CN 108625881A
- Authority
- CN
- China
- Prior art keywords
- trolley
- arc track
- reinforcing bar
- laying
- main body
- 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.)
- Granted
Links
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
- E21D11/04—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
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- 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
- E21D11/14—Lining predominantly with metal
-
- 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Road Paving Structures (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Have two grommets of mobile arc track to reinforcing steel bar laying trolley and laying method the invention discloses a kind of, trolley includes feasible vehicle main body of walking on stage；Trolley main body carries the arc track of imitative Tunnel wall by vertically moving trolley, and arc track, which is equipped with, pulls trolley；Arc track vertical or extend obliquely downward, is equipped with carrying roller by vault to both sides arch springing between two parallel guide rails of arc track；It pulls trolley to be connected on the flexible drawing component driven by traction drive, flexible drawing component is supported by multiple directive wheels and guiding forms ring seal structure, is pulled trolley and is moved back and forth by arc track by flexible drawing component pulling edge.Two lining circumferential reinforcements are laid with based on aforementioned laying trolley.The invention has the advantages that laying trolley structure is simple, compact in design, convenient for safeguarding；And two lining circumferential reinforcement be laid with it is efficient, mechanization degree is high, labor intensity is low, and working security is easier to be guaranteed.
Description
Technical field
The present invention relates to tunnel construction technologies, more particularly to have two grommets of mobile arc track to reinforcing steel bar laying trolley
And laying method.
Background technology
With the quickening of domestic high ferro construction speed, high ferro constructing tunnel facility demand sharp increase.In constructing tunnel
Tunnel-liner after the completion of need to carry out waterproof and consolidation process, including be laid with after splash guard carries out waterproof and be laid with two lined steel muscle
It carries out concreting and forms second consolidation.Although also to carry out cement mortar spraying after the completion of tunnel-liner, after spraying
Surface still has rough and uneven in surface phenomenon.To avoid splash guard from being laid on scraggly surface, therefore, splash guard with
Also need setting geotextiles to form cushion between sprayed coating.Two lined steel muscle include circumferential reinforcement and longitudinal reinforcement, existing skill
In art, after the completion of splash guard is laid with, is first laid with the circumferential reinforcement being relatively large in diameter, re-lays longitudinal reinforcement, with using diameter compared with
Big steel hoop forms the supporting member of longitudinal reinforcement, then laying diameter is relatively small and full after the completion of longitudinal reinforcement is laid with
Foot two serves as a contrast the circumferential reinforcement of pouring layer intensity requirement, and there is only two lined steel muscle to intersect laying for this paving mode, also because of conduct
In advance the larger diameter circumferential reinforcement of supporting member and lead to waste of material.
For high ferro tunnel, since running velocity is fast, tunnel cross-section is big.Therefore, it is necessarily required to big specification
The two lined steel muscle that geotextiles and splash guard and length and diameter dramatically increase.In addition, since high ferro design specification and construction are advised
Model requirement, two lined steel muscle outsides must have the cement layer protection of setting thickness.But in existing construction method, since reinforcing bar has
Elasticity, circumferential reinforcement both ends are not limited well, are easy to poke splash guard in process of deployment, are influenced waterproof effect；And
And be in short abutment wall reserved steel bar welding process, the setpoint distance between splash guard is difficult to ensure, there are protective layer be thinned it is hidden
Suffer from.
Although present inventor has carried out larger improvement to these construction technologies before this, and in May, 2017
It rises and has submitted a series of patent applications successively, and solve a large amount of technical problems above-mentioned.But it invents in actual application
People also found that needs further solve the problems, such as.For this purpose, the problem of inventor is to having found proposes further improved technical side
Case.
Invention content
The first object of the present invention provides a kind of two linings with mobile arc track aiming at the deficiencies in the prior art
Circumferential reinforcement is laid with trolley, and the trolley in trolley main body by being arranged mobile arc track, and operates in arc track
On pulling trolley pull reinforcing bar, it is during pulling trolley travelling that reinforcing bar is gradually curved using the elastic deformation characteristic of reinforcing bar
Song realizes that two lining circumferential reinforcements are laid at arc arch shape arcuation, then by arc track longitudinal movement.Its simple in structure, laying side
Just it, is laid with efficient.The second object of the present invention be to provide it is a kind of based on aforementioned two grommets with mobile arc track to steel
Muscle is laid with two lining circumferential reinforcement laying methods of trolley.To realize that efficient, high quality is laid with the purposes of two lining circumferential reinforcements.
To realize that the first purpose, the present invention adopt the following technical scheme that.
It is a kind of to have two grommets of mobile arc track to reinforcing steel bar laying trolley, including can be along the truss that tunnel is longitudinally walked
Formula trolley main body；The trolley main body is equipped with long rails, and long rails are equipped with moveable longitudinal movement trolley, longitudinal
The arc track of imitative Tunnel wall is carried in moving trolley, arc track, which is equipped with, pulls trolley；Arc track by vault extremely
Both sides arch springing extends downwardly in perpendicular, alternatively, being extended downwardly in the inclined surface in a certain angle with perpendicular；Institute
It states pulling trolley to be connected on the flexible drawing component driven by traction drive, flexible drawing component passes through multiple directive wheels
Formation ring seal structure in arc track is supported and be directed at, trolley is pulled and round-trip is pulled by flexible drawing component；
Multiple reinforcing bar carrying rollers are equipped with along the arc track, the reinforcing bar that multiple reinforcing bar carrying rollers are constituted pulls raceway, which pulls raceway
It is relatively fixed outside arc track side, and with arc track formation.
Using the present invention of aforementioned schemes, trolley is vertically moved by being arranged in trolley main body, and by vertically moving
The arc track of trolley carrying, and, the pulling trolley operated on arc track pulls reinforcing bar, special using the flexible deformation of reinforcing bar
Property, reinforcing bar is gently curved to arc arch shape arcuation during pulling trolley travelling, then arc is carried by vertically moving trolley
Track is vertically moved along tunnel, to realize that circumferential reinforcement is laid with.Wherein, two kinds of structure types can be used in arc track, when
Arc track is extended downwardly by vault to both sides arch springing in perpendicular, second is that by vault to both sides arch springing with perpendicular
It is extended downwardly in inclined surface in a certain angle, and is equipped with carrying roller between two parallel guide rails of arc track.Reinforcing bar passes through
Outside arc track side, and the arcuately reinforcing bar carrying roller support of the arc distribution of track, to avoid reinforcing bar during dragging
Fretting wear is formed to arc track, support wheel or reverse wheel, avoids damaging track and supporting member.Due to being laid
Reinforcing bar is generally in lying status before entering arc track, so that reinforcing bar front end is upwarped by artificial, boom hoisting, is convenient for and drawing
Trolley is dragged to be fixedly connected.To ensure to pull trolley trouble-free operation under conditions of pulling reinforcing bar, it is relatively large in diameter reinforcing bar and needs arc
Track inclination certain angle enters the obstruction that reinforcing bar pulls raceway to reduce to reinforcing bar, it is ensured that reinforcing bar is subsequently pulling trolley
It can smoothly enter into reinforcing bar under pulling and pull raceway.Obviously, in the case where bar diameter is smaller, flexural deformation power is small, even if
When arc track is in vertical extended structure, reinforcing bar also smoothly can be pulled in reinforcing bar and pulled in raceway by smaller drag force.Conversely,
When bar diameter is larger, after arc track needs are tilted a certain angle, reinforcing bar can just can smoothly enter into reinforcing bar and pull raceway.Its
In, chip haulage chain or annulus haulage chain can be used using forms, haulage chains such as pull-cord or haulage chains in flexible drawing component
Deng.Traction drive can be made of rotating driving devices such as hoist engine or drive sprockets.Traction drive can be by individually just
The rotating driving device of reverse rotation is constituted, two rotating driving devices that can be also moved back and forth by respectively driving flexible drawing component
It constitutes, wherein when a conduct driving, another is for commutating.This trolley structure is simple, and mechanization degree is high, is laid with efficiency
It is high.Big quantity two especially suitable for big cross section high ferro tunnel serves as a contrast circumferential reinforcement and is laid with.
It is pulled for convenience of reinforcing bar, preferably, the arch springing section that arc track is located to one end is set as boot segment of entering the orbit, this is entered the orbit
Boot segment is from top to bottom along the inflection point that tunnel is longitudinal to be extended towards the direction far from trolley main body, and arc track formation is made to bend.
Wherein, arc track rest in trolley main body set end when, circumferential reinforcement can by manually praise so that pulling end is upwarped by
Raceway is pulled into reinforcing bar.Raceway is pulled to ensure that reinforcing bar can smoothly enter into reinforcing bar, it is also contemplated that is leaned in the trolley main body
The position setting boom hoisting of nearly boot segment of entering the orbit.Boom hoisting is using hoist engine as preferred plan, certainly, hoist can also be used
Equal simple liftings equipment is connected with being lifted the reinforcing bar front end to lie low by the pulling of lifting method to be fixed with pulling trolley
It connects, then enter the orbit boot segment and arc track main paragraph are sequentially entered by pulling trolley pulling.
Preferably, the trolley main body is equipped with two long rails；The arc track is by right on two long rails
The two longitudinal movement trolleies carrying answered, two longitudinal movement trolleies are carried on the dome portions and two arch springings of arc track respectively
Portion.To ensure that vertically moving trolley ensures the stationarity of arc track movement by two, preferably, traction drive is located at arc
The dome portions of shape track, mounting base are carried on after being fixedly connected with arc track on the longitudinal movement trolley of dome portions.With
Ensure the stationarity of arc track integrally-built fastness and overall movement.
It is further preferred that two longitudinal movement trolleies are connected on corresponding longitudinal movement driving component,
Any longitudinal movement driving component is driven by corresponding vertical movable driving equipment and is moved back and forth.Two vertical movable driving equipments
Same control system can be used and be uniformly coordinated control, to realize synchronous driving, meet the steady movement requirement of arc track, to avoid
The synchronous purpose of the two is realized using mechanical component, to effectively simplify structure.Even if the two there are the fine difference of synchronization aspects,
It is offseted automatically using the elastic deformation characteristic of arc track itself longspan structure, without the coordination for influencing to move integrally
Property.
Preferably, the boot segment of entering the orbit of the arc track front end forms polyline shaped with main paragraph by turning point, this enters
Rail boot segment is longitudinal towards the direction inclination far from trolley main body along tunnel from top to bottom；The reinforcing bar pulls to be set above raceway both ends
It is useful for the end limiting device opened outside limitation reinforcing bar end；The end limiting device of raceway input end is pulled positioned at the reinforcing bar
Reinforcing bar is also constituted to enter the orbit the part of guider.Reinforcing bar enter the orbit guider can effectively by reinforcing bar guide to reinforcing bar pull raceway
It is interior；And end reinforced limiting device can be by end reinforced restriction, effectivelying prevent end reinforced outer and poking and be laid with
Splash guard, to be formed to the good protection of previous process quality.
Preferably, the trolley main body is equipped with multiple liftout attachments, and liftout attachment can be to the circumferential reinforcement shape of laying
At support.Reinforcing bar of the liftout attachment for being stretched out after the completion of circumferential reinforcement is arranged and in reinforcing bar both ends and the short abutment wall in tunnel
Gib is formed to steel hoop after welding, prevents reinforcing bar vault from collapsing concave deformation.Wherein, liftout attachment is preferably with mesh
It is preceding in the market being capable of firsthand double input end Worm gear feed screw elevator commodity.And multiple liftout attachments include along arched tunnel
At least two of distribution, and along the two or more of tunnel genesis analysis can be formed pair along at least two of arched tunnel distribution
The multiple of same root circumferential reinforcement hold a little, it is ensured that reinforcing bar arc is closer to tunnel cross-section arc；Genesis analysis is more than two, with
Just it is held while supporting one to hold beam jointly, and the two lining circumferential reinforcements parallel to more is formed by holding beam, to carry
Gao Duogen bis- serves as a contrast the consistency that circumferential reinforcement is laid with.Obviously, in the working condition of jack-up, arc track should be at pushing up liftout attachment
Go out other than region, and positioned at any one end of trolley main body, to avoid liftout attachment；And in arc track moving process, top
Go out the position that device should be at dropping to setting height, with for provide arc track movement space.
To realize that the second purpose, the present invention adopt the following technical scheme that.
One kind two serves as a contrast circumferential reinforcement laying method, based on two linings with mobile arc track for realizing the first invention purpose
Circumferential reinforcement, which is laid with trolley, to be implemented；Include the following steps：
The first step, two lining circumferential reinforcements are laid with and prepare：Arc track is rested in one end of trolley main body, trolley is pulled and stops
Entering the orbit on boot segment for arc-shaped guide rail is leaned against, the two lining circumferential reinforcement one end to be laid of to be laid at least one and pulling are small
Vehicle is fixedly connected；
Second step, two lining circumferential reinforcements pull in place：This is pulled by traction drive and flexible drawing component to wait spreading
If two lining circumferential reinforcements so that this two lining circumferential reinforcement by reinforcing bar pull raceway bend to arc arch shape；
Third step, the limit of reinforcing bar end：Two ends of the end limiting device to reinforcing bar at raceway both ends are pulled by reinforcing bar
Portion is limited, and is released two lining circumferential reinforcements and be fixedly connected with state with pulling trolley；
4th step, reinforcing bar arrangement and fixed one end：Arc track is moved from trolley main body one end to the other end；Alternatively,
To return in situ after arc track is moved to the other end or setpoint distance from trolley main body one end；It moves ahead or returns in arc track
During the continuous moving or interruption returned pauses, two lining circumferential reinforcements are taken from arc track by genesis analysis position and quantity
Under, and the reserved steel bar stretched out in remove two lining circumferential reinforcement one end and the short abutment wall in respective side tunnel is spliced and is fixed, arch
Top top is supported by multiple liftout attachments, the reserved steel bar sliding sleeve stretched out in the other end and the short abutment wall in other side tunnel of reinforcing bar
It connects；
5th step, the fixed steel bars other end：More two lining circumferential reinforcements of genesis analysis are divided by multiple liftout attachments
Section is upward and outward jacked up to setting position, and one by one splices the other end of two lining circumferential reinforcements admittedly with corresponding reserved steel bar
It is fixed.
Using the present invention of preceding solution, two grommets for realizing that the first invention purpose has mobile arc track are utilized
Implement to reinforcing steel bar laying trolley.In specific implementation process, arc track rests in one end of trolley main body, two lining circumferential reinforcements
In the case where pulling the pulling traction of trolley, gradually extended from the side of trolley to the other side, and utilize the arc along imitative Tunnel wall
The elastic deformation characteristic for the reinforcing bar carrying roller and bar material that track is laid, arc arch shape arced configuration is gently curved to by reinforcing bar.Again
Circumferential reinforcement is transported by the longitudinal movement of arc track, to complete longitudinally to carry out circumferential reinforcement arrangement and reinforcing bar one end along tunnel
Bind fix, be then laid with height from liftout attachment top to tunnel wall to setting again, and the bind for completing the reinforcing bar other end is solid
It is fixed.This method is laid with especially suitable for the big quantity circumferential reinforcement in high ferro tunnel, and laying speed is fast, efficient.Wherein, bundled
Or several two lining longitudinal reinforcements can be transported to by load wagon near trolley.Reinforcing bar can be pulled by manpower or boom hoisting is drawn
It drags, reinforcing bar front end is fixedly connected with trolley is pulled.Boom hoisting is using hoist engine as preferred plan, certainly, hoist can also be used
Equal simple liftings equipment.
This laying method further include circumferential reinforcement along its length, bar material is spliced into and meets circumferential reinforcement total length
It is required that circumferential reinforcement component；Reinforcing bar to be laid is lifted upwards with the connecting pin that trolley is connect is pulled by artificial or boom hoisting
It rises；The splicing is using the method spliced when pulling；Alternatively, before the connecting pin that reinforcing bar is connect with pulling trolley is lifted up
Complete splicing.I.e. splicing can carry out before two lining circumferential reinforcements are laid with preparation, also can pull process in place in two lining circumferential reinforcements
Middle progress, pull it is in place during carry out when, should enter reinforcing bar in splice sections and enter the orbit and complete before guider.Connecting method
Including bind and socket, socket refers to being set in together the splice sections of two bar materials to be spliced by sleeve.Using set
When connecing, preferably after sleeve enters the orbit guider by reinforcing bar, the movement that can be moved on arc track is installed additional on sleeve
Holder, mobile holder, which can be used, pulls the identical structure of trolley, to reduce the frictional resistance of mobile holder operation.
The invention has the advantages that laying trolley structure is simple, compact in design, convenient for safeguarding；And two serve as a contrast circumferential reinforcement
It is laid with that efficient, mechanization degree is high, labor intensity is low, and construction quality and safety are easier to be guaranteed.
Description of the drawings
Fig. 1 is the structural representation front view of trolley of the present invention.
Fig. 2 is the trolley part-structure diagrammatic side view that the present invention implements 1.
Fig. 3 is the part-structure diagrammatic side view that trolley and arc track are pulled in the present invention.
Fig. 4 is the left view of Fig. 3 of the present invention.
Fig. 5 is the connection relation structural schematic diagram of same longitudinal multiple liftout attachments in the present invention.
Fig. 6 is the part-structure of the longitudinal movement trolley and longitudinal movement track in the present invention positioned at arc track arch feet
Schematic diagram.
Fig. 7 is the structural schematic diagram of flexible drawing component memory in the present invention.
Fig. 8 is the part-structure diagrammatic side view of the embodiment of the present invention 2.
Specific implementation mode
The present invention will be further described below with reference to the drawings, but does not therefore limit the present invention to the implementation
Among example range.
Embodiment 1, it is a kind of to have two grommets of mobile arc track to reinforcing steel bar laying trolley referring to Fig. 1, Fig. 2, including can
The truss-like trolley main body 1 longitudinally walked along tunnel；The trolley main body 1 is equipped with long rails, and long rails are equipped with can
Mobile longitudinal movement trolley 11 vertically moves and carries the arc track 2 of imitative Tunnel wall on trolley 11, on arc track 2
Equipped with pulling trolley 3；Arc track 2 is extended downwardly by vault to both sides arch springing in perpendicular；The pulling trolley 3 connects
On the flexible drawing component 5 driven by traction drive 4, flexible drawing component 5 is supported and is oriented to by multiple directive wheels 6
Ring seal structure is formed in arc track 2, is pulled trolley 3 and is pulled in the shifting back and forth of arc track 2 by flexible drawing component 5
It is dynamic；Multiple reinforcing bar carrying rollers 20 for lifting two lining circumferential reinforcements are equipped with along the arc track 2, and reinforcing bar carrying roller 20 is located at arc
Outside 2 side of shape track, multiple reinforcing bar carrying rollers 20 constitute reinforcing bar and pull raceway；Pull trolley 3 have it is protruding, and be used for steel
The pulling portion 3a that muscle is fixedly connected, pulling portion 3a are located at reinforcing bar and pull above raceway.Wherein, flexible drawing component is using traction
Hawser or haulage chain.As shown in Figures 3 and 4, it pulls trolley 3 to run on the I-shaped rail of arc track 2, I-shaped rail can
Using i shaped steel, can also be used plank be welded into it is I-shaped；Pulling trolley 3 is tumbled before and after being prevented by front and rear rolling wheel group, is led to
It crosses left and right pair of rollers to be clamped on I-shaped rail, to prevent anti-avulsion rail.The front end of arc track 2 is entered the orbit boot segment 2a and main paragraph
Polyline shaped is formed by turning point, which from top to bottom inclines along the longitudinal direction towards separate trolley main body 1 in tunnel
Tiltedly.
Wherein, the trolley main body 1 is equipped with two long rails；The arc track 2 is by right on two long rails
Two longitudinal movement trolleies 11 carrying answered, two longitudinal movement trolleies 11 are carried on the dome portions and two of arc track 2 respectively
A arch feet.Traction drive 4 is located at the dome portions of arc track 2, and mounting base is fixedly connected with arc track 2, and is led
Draw driving device 4 to be carried on the longitudinal movement trolley 11 of dome portions by its mounting base, the longitudinal movement trolley of the dome portions
11 corresponding long rails are I-rail, and the longitudinal movement trolley 11 is rolled with I-rail using the idler wheel of trough of belt and connected.Two
Described in platform vertically move trolley 11 be connected on corresponding longitudinal movement driving component, any longitudinal movement driving component by
The driving of corresponding vertical movable driving equipment 14 moves back and forth.Two vertical movable driving equipments 14 are united using same control system
One coordinates control, with the synchronous driving of realization, meets the steady movement requirement of arc track, the two is realized to avoid using mechanical component
Synchronous purpose, to effectively simplify structure.Wherein, traction rope or traction chain structure can be used in longitudinal movement driving component, wherein
Haulage chain includes chip chain and round-link chain.
Referring to Fig. 2, in conjunction with Fig. 3 and 4, feeding anchor point of 1 left end of trolley main body as arc track 2 is stopped in feeding
It is equipped with boom hoisting by point, and close to the position of 2 turning point of arc track, the boom hoisting is by letters such as hoist engine 18 or hoists
Easy lifting appliance is constituted, to be lifted the reinforcing bar front end to lie low by the pulling of lifting method, alternatively, reinforcing bar front end is pulled in steel
Muscle pulls in raceway.Gear protection roll 21 is equipped with above one end of reinforcing bar carrying roller 20, gear protection roll 21 is vertical with reinforcing bar carrying roller 20, reinforcing bar support
20 other end of roller is equipped with block plate 22, keeps off protection roll 21 and block plate 22 and dragged circumferential reinforcement is limited in reinforcing bar dragging raceway；
Reinforcing bar pull raceway rear and front end be equipped with end reinforced limiting device, with by end reinforced limiting device to end reinforced
It limits, effectively prevent end reinforced outer and poke the splash guard being laid with, to form the good guarantor to previous process quality
Shield.End reinforced limiting device is mainly made of the limit component 23 for being parallel to reinforcing bar carrying roller 20, and limit component 23 passes through trolley
Main body 1 is arranged, and has the space smoothly passed through for pulling trolley 3 between limit component and arc track 2, is located at reinforcing bar and pulls rolling
The limit component 23 of road inlet is made of guiding roller, which constitutes reinforcing bar with neighbouring gear protection roll 21 and enter reinforcing bar
Pull the guider of entering the orbit of raceway；The guider of entering the orbit of this structure can also again be added near the inflection point of arc track 2
One；It keeps off protection roll 21 and raceway support setting is pulled by reinforcing bar, the mounting base that reinforcing bar pulls raceway support and arc track 2 is fixed
Connection；Wherein, block plate 22 is close to arc-shaped guide rail 2.
In addition, the trolley main body 1 is equipped with multiple liftout attachments 10, liftout attachment 10 can be to the circumferential reinforcement of laying
Form support.Wherein, more than two liftout attachments 10 along the same longitudinal Latitudinal section in tunnel constitute one group, and support one jointly
Root holds beam 10a, to be held while forming the two lining circumferential reinforcement to more parallelly distribute ons by holding beam 10a；Along tunnel
Arc is distributed minimum two groups of liftout attachments 10, and Fig. 3 of the present invention show 7 groups, to form multiple tops to same root circumferential reinforcement
It holds a little；And multigroup liftout attachment 10 positioned at 1 middle part of trolley main body and top ejects straight up, is located under trolley main body 1
Multigroup liftout attachment 10 in portion horizontally outward ejects.
Referring to Fig. 5, liftout attachment 10 is in the Worm gear feed screw elevator structure of double input end.In same longitudinally extending line
Multiple liftout attachments 10 driven by same Dual-output shaft motor 19.With pair of 19 adjacent liftout attachment 10 of Dual-output shaft motor
Input terminal is answered to pass through the output axis connection corresponding with Dual-output shaft motor 19 of shaft coupling 12；With Dual-output shaft motor 19 close to, but
Liftout attachment 10 apart from each other passes through shaft coupling 12 and transmission shaft 13, output axis connection corresponding with Dual-output shaft motor 19；With
The alternate liftout attachment 10 of Dual-output shaft motor 19, by shaft coupling 12, transmission shaft 13 with close to the top of Dual-output shaft motor 19
Go out another input terminal connection of device 10.Wherein, the use of liftout attachment 10 currently on the market being capable of firsthand double input end
Worm gear feed screw elevator commodity.
Referring to Fig. 2, in conjunction with Fig. 6, the longitudinal movement trolley 11 for carrying arc track 2 from 2 arch feet of arc track can
Mobile cooperation is on longitudinal movement track 16.Longitudinal movement track 16 is made of side T-slot, the opening of the side T-slot
Outwardly, longitudinal movement trolley 11 passes through cooperation to level by coordinating the traveling wheel 11a carrying walkings in the T-slot narrow slot of side
Support wheel 11b in the T-slot sipes of side prevents from overturning.Two longitudinal movement trolleies 11 of two arch springings and vault carry jointly
Arc track 2, the two cooperation are moved along trolley main body 1, carry out the longitudinal arrangement of circumferential reinforcement, are moved in arc track 2
In the process, liftout attachment 10 needs to drop to appropriate height, so that 2 arch of arc track passes through above liftout attachment 10, row
After the completion of cloth, liftout attachment 10 lifts again forms jacking and support to circumferential reinforcement.
In the present embodiment, for drawing the flexible drawing component 5 for pulling trolley 3 by driving wheel, reverse wheel and multiple leading
Ring seal structure is formed to wheel 6；The traction drive 4 has forward and reverse rotation driving structure.Traction drive 4 can
It is made of the rotating driving devices such as hoist engine or the drive sprocket driven by motor, speed reducer.Wherein, traction drive 4
It can be constituted by respectively driving two rotating driving devices that flexible drawing component 5 moves back and forth, one is driven as active wherein
When dynamic, another constitutes driven reverse wheel.
Referring to Fig. 1, the ring seal structure of flexible drawing component 5 includes top section and lower section section in this implementation, under
Flexible drawing component memory 17 is connected in square section.Referring to Fig. 7, which is in pulley block structure,
Including pulley yoke 17a and the fixed pulley 17b being located on pulley yoke 17a and movable pulley 17c, pulley yoke 17a fixations are hung in curved track
On road 2, the movable pulley wheel shaft of setting movable pulley 17c is movably located at by closed bar shaped sliding slot on pulley yoke 17a, is moved and is slided
It is also connected by tensioning spring 17d between wheel wheel shaft and arc track 2.In flexible drawing component 5 two are pulled by pulling trolley 3
Under the operating mode for serving as a contrast circumferential reinforcement, movable pulley 17c is pulled to one end of sliding slot by elastic force by tensioning spring 17d, to formation pair
The auto-tensioning of flexible drawing component 5.In pulling 3 return of trolley, it is another that movable pulley 17c by flexible drawing component 5 pushes sliding slot to
One end, and limited by pulley yoke 17a forming position.Meanwhile 5 length of flexible drawing component can also be led in length by flexibility
Primer component memory 17 forms certain storage level, to carry out length adjustment as needed.
Embodiment 2, referring to Fig. 8, arc track 2 is by vault to both sides arch springing in the inclination in a certain angle with perpendicular
It is extended downwardly in face, wherein boot segment 2a inclined directions of entering the orbit are consistent with the inclined direction of 2 main paragraph of arc track, tilt
Angle is significantly greater than the angle of inclination of 2 main paragraph of arc track；Reinforcing bar carrying roller 20 keeps axis horizontal.
Remaining structure of the present embodiment is same as Example 1, and details are not described herein.
In the present embodiment, the identical angle of inclination of 2 main paragraph of arc track can also be used in the boot segment 2a that enters the orbit, that is, enters the orbit and draw
It leads section 2a and does not form bending inflection point relative to 2 main paragraph of arc track.This scheme is suitable for the angle of inclination energy of arc track 2
Enough meet under conditions of reinforcing bar to be laid can smoothly enter into reinforcing bar dragging raceway requirement and uses.
Embodiment 3, in conjunction with Fig. 1~8, one kind two serves as a contrast circumferential reinforcement laying method, has movement based on embodiment 1 or 2
Two grommets of arc track are implemented to reinforcing steel bar laying trolley；Include the following steps：
The first step, two lining circumferential reinforcements are laid with and prepare：Arc track 2 is rested in one end of trolley main body 1, pulls trolley
3 rest in the entering the orbit on boot segment 2a of arc-shaped guide rail 2；By artificial or boom hoisting by least two grommets to be laid to
The front end of reinforcing bar is lifted, and then, the two lining circumferential reinforcements to be laid of to be laid at least one is lifted end and are consolidated with trolley 3 is pulled
Fixed connection；
Second step, two lining circumferential reinforcements pull in place：This is pulled by traction drive 4 and flexible drawing component 5 to wait for
Two lining circumferential reinforcements being laid with, so that the two linings circumferential reinforcement is pulled in reinforcing bar after by guider of entering the orbit and is bent on raceway
At arc arch shape；
Third step, the limit of reinforcing bar end：Two ends of the end limiting device to reinforcing bar at raceway both ends are pulled by reinforcing bar
Portion is limited, and is released two lining circumferential reinforcements and be fixedly connected with state with pulling trolley 3；
4th step, reinforcing bar arrangement and fixed one end：Arc track 2 is moved from 1 one end of trolley main body to the other end；Or
Person, to return in situ after arc track 2 is moved to the other end or setpoint distance from 1 one end of trolley main body；Before arc track 2
During row or the continuous moving returned or interruption are paused, by genesis analysis position and quantity by two grommets from arc track 2
It is removed to reinforcing bar, and the reserved steel bar stretched out in remove two lining circumferential reinforcement one end and the short abutment wall in respective side tunnel is spliced admittedly
Fixed, arcade upper is supported by multiple liftout attachments 10, is stretched out in the other end and the short abutment wall in other side tunnel of reinforcing bar reserved
Slip of bar is socketed；
5th step, the fixed steel bars other end：After two lining circumferential reinforcements are paved with a mould, arc track 2 is rested in from platform
The jacking region of liftout attachment 10 is avoided in 1 end of vehicle main body, by multiple liftout attachments 10 by more two grommets of genesis analysis
It jacks up to setting height to reinforcing bar, and one by one splices the other end of two lining circumferential reinforcements admittedly with corresponding reserved steel bar upwards
It is fixed.
Wherein, this laying method further include circumferential reinforcement along its length, bar material is spliced into and meets circumferential reinforcement
The circumferential reinforcement component that total length requires.Splicing can two lining circumferential reinforcements be laid with prepare before carry out, also can be in two grommets to steel
Muscle pull it is in place during carry out, pull it is in place during carry out when, reinforcing bar should be entered in splice sections and entered the orbit guider
Preceding completion.Connecting method includes welding and socket, and socket refers to by sleeve by the splice sections set of two bar materials to be spliced
It is fitted together.When using socket, preferably after sleeve enters the orbit guider by reinforcing bar, being installed additional on sleeve can be in curved track
The mobile holder moved on road, mobile holder, which can be used, pulls the identical structure of trolley, to reduce the friction of mobile holder operation
Resistance.Bar material includes the remaining material etc. that reinforcing bar factory state reinforcing bar and length are less than factory state reinforcing bar.
For the method for the present invention in specific implementation process, arc track 2 rests in one end of trolley main body 1, pulls trolley 3 and stops
Lean against entering the orbit on boot segment 2a for arc-shaped guide rail 2；Two lining circumferential reinforcements are in the case where pulling the pulling traction of trolley, by the side of trolley
Gradually extend to the other side, and pull the elastic deformation characteristic of raceway and bar material using reinforcing bar, reinforcing bar is gently curved to
Arc arch shape arced configuration.Circumferential reinforcement is transported by the longitudinal movement of arc track again, it is circumferential to complete longitudinally to carry out along tunnel
Reinforcing bar is arranged and the fixation of reinforcing bar one end, is then laid with height from liftout attachment top to tunnel wall to setting again, and complete reinforcing bar
The other end is welded and fixed.
Wherein, bundled or several two lining longitudinal reinforcement can be transported to by load wagon near trolley.Reinforcing bar enters reinforcing bar and drags
After dragging raceway and being praised by manpower, connect by steel wire rope with trolley is pulled, reinforcing bar dragging raceway is pulled by pulling trolley, or
Person is directly lifted by crane pulling by boom hoisting and enters reinforcing bar dragging raceway.Boom hoisting is using hoist engine as preferred plan, certainly, also may be used
Using the simple liftings equipment such as hoist, the reinforcing bar to lie low is drawn from arc track injection point in a manner of the pulling that will pass through lifting
Enter in track, to facilitate subsequent pulling trolley to pull.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of have two grommets of mobile arc track to reinforcing steel bar laying trolley, including can be along the truss-like that tunnel is longitudinally walked
Trolley main body (1)；It is characterized in that, the trolley main body (1) is equipped with long rails, long rails are equipped with moveable vertical
To moving trolley (11), the arc track (2) of imitative Tunnel wall is carried on longitudinal movement trolley (11), on arc track (2)
Equipped with pulling trolley (3)；Arc track (2) is extended downwardly by vault to both sides arch springing in perpendicular, alternatively, with it is vertical
Plane extends downwardly in inclined surface in a certain angle；It is described pull trolley (3) and be connected to driven by traction drive (4)
On flexible drawing component (5), flexible drawing component (5) is supported and is directed at shape in arc track (2) by multiple directive wheels (6)
Enclosed construction is circularized, trolley (3) is pulled and round-trip is pulled by flexible drawing component (5)；It is set along the arc track (2)
There are multiple reinforcing bar carrying rollers (20), the reinforcing bar that multiple reinforcing bar carrying rollers (20) are constituted to pull raceway, which pulls raceway and be located at arc
Outside track (2) side, and it is relatively fixed with arc track (2) formation.
2. two grommets with mobile arc track according to claim 1 are to reinforcing steel bar laying trolley, which is characterized in that institute
It states trolley main body (1) and is equipped with two long rails；The arc track (2) is by corresponding two longitudinal directions on two long rails
Moving trolley (11) carries, and two longitudinal movement trolleies (11) are carried on the dome portions and two arch springings of arc track (2) respectively
Portion.
3. two grommets with mobile arc track according to claim 2 are to reinforcing steel bar laying trolley, which is characterized in that two
It vertically moves trolley (11) described in platform to be connected on corresponding longitudinal movement driving component, any longitudinal movement driving component
It is driven and is moved back and forth by corresponding vertical movable driving equipment.
4. two grommets with mobile arc track according to claim 1 are to reinforcing steel bar laying trolley, which is characterized in that institute
Enter the orbit boot segment and the main paragraph for stating arc track (2) front end form polyline shaped by turning point, this enter the orbit boot segment by up to
It is lower longitudinal towards the direction inclination far from trolley main body (1) along tunnel；The reinforcing bar is pulled and is equipped with above raceway both ends for limiting
The end limiting device opened outside reinforcing bar end；The end limiting device that raceway input end is pulled positioned at the reinforcing bar also constitutes reinforcing bar
Enter the orbit the part of guider.
5. two grommets with mobile arc track according to claim 4 are to reinforcing steel bar laying trolley, which is characterized in that
At arc track (2) stop of described trolley main body (1) one end, and boom hoisting is equipped with close to the position of the turning point.
6. two grommets with mobile arc track according to claim 1 are to reinforcing steel bar laying trolley, which is characterized in that institute
It states reinforcing bar carrying roller (20) one end and is equipped with gear protection roll (21), the other end is equipped with block plate (22)；It keeps off protection roll (21) and the other end is equipped with gear
Disk (22) is used to reinforcing bar being limited in reinforcing bar and pull in raceway.
7. two grommets with mobile arc track according to claim 1 are to reinforcing steel bar laying trolley, which is characterized in that institute
It states trolley main body (1) and is equipped with multiple liftout attachments (10), liftout attachment (10) can form the circumferential reinforcement of laying and support.
8. one kind two serves as a contrast circumferential reinforcement laying method, which is characterized in that based on the tool described in any one of claim 1~7
There are two grommets of mobile arc track to implement to reinforcing steel bar laying trolley；Include the following steps：
The first step, two lining circumferential reinforcements are laid with and prepare：Arc track (2) is rested in one end of trolley main body (1), pulls trolley
(3) it rests on the boot segment of entering the orbit (2a) of arc-shaped guide rail (2)；By the two lining circumferential reinforcements to be laid of to be laid at least one
One end is fixedly connected with trolley (3) is pulled；
Second step, two lining circumferential reinforcements pull in place：It pulls this by traction drive (4) and flexible drawing component (5) and waits for
Two lining circumferential reinforcements being laid with, so that the two lining circumferential reinforcement pulls raceway by reinforcing bar and bends to arc arch shape；
Third step, the limit of reinforcing bar end：By reinforcing bar pull the end limiting device at raceway both ends to two ends of reinforcing bar into
Row limit, and release two lining circumferential reinforcements and be fixedly connected with state with pulling trolley (3)；
4th step, reinforcing bar arrangement and one end are fixed：Arc track (2) is moved from trolley main body (1) one end to the other end；Or
Person, to return in situ after arc track (2) is moved to the other end or setpoint distance from trolley main body (1) one end；In curved track
During the continuous moving or interruption that road (2) is moved ahead or returned pause, by genesis analysis position and quantity from arc track (2)
The reserved steel that two lining circumferential reinforcements are removed, and will be stretched out in remove two lining circumferential reinforcement one end and the short abutment wall in respective side tunnel
Muscle splicing is fixed, and arcade upper is supported by multiple liftout attachments (10), in the other end and the short abutment wall in other side tunnel of reinforcing bar
The reserved steel bar of stretching is slidably socketed；
5th step, the reinforcing bar other end are fixed：More two lining circumferential reinforcements of genesis analysis are divided by multiple liftout attachments (10)
Section is upward and outward jacked up to setting position, and one by one splices the other end of two lining circumferential reinforcements admittedly with corresponding reserved steel bar
It is fixed.
9. two linings circumferential reinforcement laying method according to claim 8, which is characterized in that in the first step, also wrap
It includes and bar material is spliced into circumferential reinforcement component by length requirement；It by reinforcing bar to be laid and is pulled by artificial or boom hoisting
The connecting pin of trolley (3) connection is lifted up；The splicing is using the method spliced when pulling；Alternatively, in reinforcing bar and pulling
Splicing is completed before being lifted up in the connecting pin of trolley (3) connection.
10. two linings circumferential reinforcement laying method according to claim 9, which is characterized in that the splicing include bind with
Socket；When using sleeve socket, the sleeve in reinforcing bar stitching section is entered the orbit by reinforcing bar after guider (7), then on sleeve
The mobile holder that installation is ridden on the arc track (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727032.XA CN108625881B (en) | 2018-06-29 | 2018-06-29 | Two-lining annular reinforcing steel bar laying trolley with movable arc-shaped track and laying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727032.XA CN108625881B (en) | 2018-06-29 | 2018-06-29 | Two-lining annular reinforcing steel bar laying trolley with movable arc-shaped track and laying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108625881A true CN108625881A (en) | 2018-10-09 |
| CN108625881B CN108625881B (en) | 2023-09-19 |
Family
ID=63689615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810727032.XA Active CN108625881B (en) | 2018-06-29 | 2018-06-29 | Two-lining annular reinforcing steel bar laying trolley with movable arc-shaped track and laying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108625881B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065462A (en) * | 2020-08-19 | 2020-12-11 | 中铁五局集团有限公司 | Karst cave section construction rack for construction of tunnel in karst cave and underground river environment |
| CN112196541A (en) * | 2020-09-15 | 2021-01-08 | 阿古达木 | Tunnel repairing device |
| CN113356883A (en) * | 2021-06-04 | 2021-09-07 | 中铁二十局集团有限公司 | Automatic installation and positioning trolley device and method for secondary lining circumferential steel bars of tunnel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199992A (en) * | 1995-01-20 | 1996-08-06 | Hazama Gumi Ltd | Device for assembling and arranging reinforcing bar |
| CN103939114A (en) * | 2014-05-14 | 2014-07-23 | 中铁二局股份有限公司 | Lining construction method for suspension rail type trolley |
| CN106050272A (en) * | 2016-07-25 | 2016-10-26 | 中车建设工程有限公司 | Multifunctional rack for installing lining steel bars and laying waterproof boards special for tunnels |
| JP2017031583A (en) * | 2015-07-29 | 2017-02-09 | 大成建設株式会社 | Invert construction method, tunnel construction method and tunnel telpher crane |
| CN107091102A (en) * | 2017-06-01 | 2017-08-25 | 山东大学 | A kind of semi-automatic tunnel bar-mat reinforcement laying apparatus and method based on chassis |
| CN107100651A (en) * | 2017-05-13 | 2017-08-29 | 山东佳信机械设备有限公司 | A kind of tunnel-liner is seamlessly connected reinforcing bar positioning, splash guard laying chassis |
| CN206987843U (en) * | 2017-05-19 | 2018-02-09 | 龚岗 | Geotextiles waterproof cloth and two lined steel muscle are plated in integrated bogie hearth |
| CN206987835U (en) * | 2017-05-19 | 2018-02-09 | 龚岗 | The positioning of tunnel double-lining reinforcing bar, laying and liftout attachment |
-
2018
- 2018-06-29 CN CN201810727032.XA patent/CN108625881B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199992A (en) * | 1995-01-20 | 1996-08-06 | Hazama Gumi Ltd | Device for assembling and arranging reinforcing bar |
| CN103939114A (en) * | 2014-05-14 | 2014-07-23 | 中铁二局股份有限公司 | Lining construction method for suspension rail type trolley |
| JP2017031583A (en) * | 2015-07-29 | 2017-02-09 | 大成建設株式会社 | Invert construction method, tunnel construction method and tunnel telpher crane |
| CN106050272A (en) * | 2016-07-25 | 2016-10-26 | 中车建设工程有限公司 | Multifunctional rack for installing lining steel bars and laying waterproof boards special for tunnels |
| CN107100651A (en) * | 2017-05-13 | 2017-08-29 | 山东佳信机械设备有限公司 | A kind of tunnel-liner is seamlessly connected reinforcing bar positioning, splash guard laying chassis |
| CN206987843U (en) * | 2017-05-19 | 2018-02-09 | 龚岗 | Geotextiles waterproof cloth and two lined steel muscle are plated in integrated bogie hearth |
| CN206987835U (en) * | 2017-05-19 | 2018-02-09 | 龚岗 | The positioning of tunnel double-lining reinforcing bar, laying and liftout attachment |
| CN107091102A (en) * | 2017-06-01 | 2017-08-25 | 山东大学 | A kind of semi-automatic tunnel bar-mat reinforcement laying apparatus and method based on chassis |
Non-Patent Citations (2)
| Title |
|---|
| 李湘陵;: "野马梁隧道防水板铺设台车的研制与应用" * |
| 闫艳辉;王柏松;: "一种新型防水板铺设台车" * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065462A (en) * | 2020-08-19 | 2020-12-11 | 中铁五局集团有限公司 | Karst cave section construction rack for construction of tunnel in karst cave and underground river environment |
| CN112196541A (en) * | 2020-09-15 | 2021-01-08 | 阿古达木 | Tunnel repairing device |
| CN113356883A (en) * | 2021-06-04 | 2021-09-07 | 中铁二十局集团有限公司 | Automatic installation and positioning trolley device and method for secondary lining circumferential steel bars of tunnel |
| CN113356883B (en) * | 2021-06-04 | 2022-09-13 | 中铁二十局集团有限公司 | Automatic mounting and positioning trolley device and method for secondary lining annular reinforcing steel bars of tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108625881B (en) | 2023-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108468554B (en) | Tunnel trolley, geotextile waterproof board and mechanical laying method of two-lining longitudinal steel bars | |
| CN108625881A (en) | Two grommets with mobile arc track are to reinforcing steel bar laying trolley and laying method | |
| CN101736703B (en) | 3000t special bridge girder erection machine for integrally erecting 120m-span double-layer four-line steel beam bridge for highway and railway | |
| CN108755718A (en) | High Slope on Expressway beats anchor shaft anchor cable apparatus for work | |
| CN107161891A (en) | A kind of handling machinery manually adjusts steering mechanism | |
| CN203441504U (en) | Construction platform used for hanging waterproof board in tunnel | |
| CN208416565U (en) | Tunnel double-lining circumferential reinforcement is laid with trolley | |
| CN208416564U (en) | Two grommets with mobile arc track are to reinforcing steel bar laying trolley | |
| CN208330406U (en) | Mechanical be laid with of earth water-proof plate and two lining longitudinal reinforcements uses tunnel trolley | |
| CN203684019U (en) | Height and span adjustable track laying machine for subway construction | |
| CN108868824A (en) | A kind of tunnel double-lining circumferential reinforcement is laid with trolley and laying method | |
| CN112031430A (en) | Post-cast constructional column concrete lifting device | |
| CN208416567U (en) | Earth water-proof plate machinery equipped with circumferential reinforcement machinery pulling device is laid with trolley | |
| CN209011837U (en) | A kind of steel arch rack trolley suitable for the micro- bench cut method in tunnel | |
| WO2023025325A1 (en) | Construction method for corrugated pipe to pass through pipeline by means of rail sliders in small underground space | |
| CN214573175U (en) | A distributing device for town road engineering curb | |
| CN102431907B (en) | Walking type tunnel carriageway plate crane | |
| CN112813777A (en) | Material distribution device for municipal road engineering kerbstone and kerbstone construction method | |
| CN108221512A (en) | Adjustable track laying machine | |
| CN208685629U (en) | High Slope on Expressway beats anchor shaft anchor cable apparatus for work | |
| CN111749708A (en) | Steel construction is used in tunnel excavation support | |
| CN110453564A (en) | Road surface expansion joint (E.J.) connector and auxiliary construction equipment for the road surface expansion joint structure | |
| CN201614550U (en) | 3000DWT bridge-erecting machine for full-span erection of steel truss bridge used for both double-layer four-track highway and railway | |
| CN113982645B (en) | Needle beam type steel strand full section construction operation trolley | |
| CN220559687U (en) | Waterproofing membrane gluing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |