JP4066005B2 - PC plate laying method and apparatus for paving roads, etc. - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and an apparatus for laying a precast concrete pavement plate (hereinafter referred to as a PC plate) used for pavement on roads, runways, etc. on roads and the like, and in particular, with the progress of road pavement work. The present invention relates to a method of manufacturing and laying a plate on a pavement laying surface and a device therefor.
[0002]
[Prior art]
Conventionally, there are asphalt pavement and concrete pavement for road pavement. Asphalt pavement is a method in which asphalt and aggregates are finished with a screed roller such as an asphalt spreader and the road surface is finished with a roller.
[0003]
On the other hand, after pavement drilling the roadbed, the concrete pavement arranges the reinforcing bars, installs the formwork, etc., puts concrete from the dump truck or truck mixer truck into the formwork and compacts it flat with a finisher etc. Curing and completing. Moreover, as a simplified construction of concrete pavement, there is a method in which a PC plate is manufactured at a factory, transported to a construction site by a pole trailer, and loaded and unloaded by a truck crane or the like.
[0004]
[Problems to be solved by the invention]
As in the above conventional example, asphalt pavement has a problem in road durability due to the recent increase in large vehicles and traffic volume, and the road surface is extremely high due to solar heat and frictional heat with tires as a problem of the material itself. Perishable.
[0005]
Concrete pavement, on the other hand, has high concrete strength and excellent road durability due to the passage of large vehicles, etc., but the construction work is prolonged due to preparation work for concrete placement and concrete curing. Closed or one-sided traffic is forced and it has a great impact on urban functions. Furthermore, the construction cost is much higher than that of asphalt pavement. In addition, the paving with the PC plate eliminates the preparatory work and concrete curing at the construction site and shortens the construction period. However, the pole trailer and stacking for transporting the large and heavy PC plate from the factory to the construction site can be shortened. Arranging a truck crane for unloading costs a lot of money.
[0006]
Furthermore, in urban areas, it causes a great deal of inconvenience to the surrounding residents, such as the noise and vibration caused by the passage of large transport vehicles and the securing of waiting areas at construction sites. In addition, when there is a three-dimensional crossing road girder or pedestrian bridge in the pavement construction section, an upper construction space such as a crane for loading and unloading the PC plate cannot be secured, and the construction is extremely difficult.
[0007]
Therefore, a highly durable PC version is manufactured on the pavement laying surface and laid as the road pavement progresses, contributing to a reduction in construction costs by greatly shortening the construction period and minimizing traffic regulations. The technical problem which should be solved in order to obtain the laying method of the PC plate and the apparatus to which it stops arises, and this invention aims at solving this problem.
[0008]
[Means for Solving the Problems]
The present invention has been proposed to achieve the above object, and in a paving method for roads and the like in which a PC plate is sequentially laid on a roadbed using a lifting device, along with the progress of the laying position of the PC plate. A moving carriage is installed on the roadbed near the PC plate laying surface, and a predetermined number of PC plate production apparatuses are placed on the floor beam of the carriage, and concrete is placed in the PC plate production apparatus, After further curing, the PC plate is laid at a predetermined position by a movable lifting device, and then the carriage is moved to the laying position of the next PC plate, and the PC plate is laid at a predetermined position. In a method of laying a PC plate in a road or the like paving a PC plate continuously while repeating the above, and a method of paving a road or the like in which a PC plate is laid in sequence on a roadbed using a lifting device. Laying a plate for temporary installation on the roadbed, and laying the PC plate on the plate A carriage that moves as the installation progresses is installed in the vicinity of the PC plate laying surface, and a predetermined number of PC plate manufacturing apparatuses are placed on the floor beam of the carriage, and concrete is placed in the PC plate manufacturing apparatus. After further curing, the plate body on the next PC plate laying position is removed, and the PC plate is laid on a predetermined position by a movable lifting device. The PC plate on a pavement such as a road, wherein the PC plate is moved to the laying position of the PC plate, and the PC plate is continuously arranged while repeating the removal of the plate-like body and the laying of the PC plate. In a pavement device such as a road in which a PC plate is sequentially laid on a roadbed using a laying method and a lifting device, a rotating body is disposed at the bottom of the carriage that moves with the progress of the laying position of the PC plate, On the floor beam of the carriage, the perimeter is made up of a formwork, and the upper part can carry in reinforcing bars and concrete. A predetermined number of PC plate manufacturing equipment provided with a mouth and a concrete curing device at the bottom are placed, and a lifting device that can move the PC plate to the laying position is installed above the carriage. The present invention provides a PC plate laying device for paving roads and the like.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. In FIG. 1, reference numeral 1 denotes a roadbed for which excavation work, roadbed work, etc. have been completed in advance, and a PC plate 2 is continuously laid from the left side to the right side of the drawing. Reference numeral 3 denotes a carriage for manufacturing the PC plate 2 and laying the PC plate 2 while moving sequentially.
[0010]
The carriage 3 has a tire 9 attached as a rotating body for enabling movement under the floor beam (including a floor, a single unit of the floor beam, and a combination of the floor and the floor beam) 15, 15. Then, the cart 3 is pulled on a self-propelled vehicle (not shown) such as a truck via a towing device (not shown) to move on the roadbed 1. A plurality of attachment positions of the tire 9 are arranged on the left and right sides in the width direction in consideration of the balance of the carriage 3. Although not shown, the tire 9 may be replaced by a roller such as an air roller, or a track is laid on the roadbed 1 and a motor is mounted on the carriage 3 and linked to the motor. Then, it may be used for construction in a tunnel so that it can be self-propelled by a rotating drive wheel.
[0011]
Two PC plate manufacturing apparatuses 4 are arranged in two rows on the floor beams 15, 15..., And the length of the road beams 15, 15. Including three times the length of the PC plate 2 is required. A small beam (not shown) is passed between the floor beams 15, 15... If necessary, and an expanded metal (not shown) or the like is stretched on the upper part to keep safety. Further, main pillars 11, 11... Are erected on the floor beams 15, 15. As shown in FIG. 2, the main pillars 11, 11... Are erected along the left and right sides of the road width, and are lifted by a traveling beam 22 and a lifting device 20 described later between the left and right main pillars 11, 11.. The PC plate 2 is configured to be able to pass through.
[0012]
And the girder 10 is constructed in the upper part between the main pillars 11 and 11, and a cross-sectional shape comprises a square shape. The girder 10 is also installed in the longitudinal direction of the carriage 3. Further, receiving beams 12 and 12 for allowing the trolleys 21 and 21 of the lifting device 20 to run in the longitudinal direction are disposed in the vicinity of the upper portions of the left and right main pillars 11 and 11 in parallel with the longitudinal beams 10. 11 is installed in contact with the inside. The receiving beams 12, 12 are supported from the main columns 11, 11 by support members 12a, 12a.
[0013]
The longitudinal lengths of the girders 10, 10... And the receiving beams 12, 12... Are made longer than the floor beams 15, 15. Facilitates PC plate laying work. Further, the beam 10 and the receiving beam 12 at both ends are joined by a longitudinal member 11a, and further, the lower part of the longitudinal member 11a and the floor beam 15 are joined by an oblique member 13 to achieve stability. Furthermore, a diagonal member 14 is inserted into a cross between the main pillars 11 in the longitudinal direction and is reinforced. The outer shape of the carriage 3 is determined by the size of the PC plate 2 and the situation at the construction site. The one shown in FIG. 1 is symmetrical with respect to the center in the longitudinal direction, and construction in any direction is performed. Can also be supported. It is divided into a predetermined shape to the construction site and assembled by bolts / nuts or on-site welding after loading.
[0014]
On the other hand, the lifting device 20 attaches a chain block to the traveling beam 22 of the trolleys 21, 21 traveling on the receiving beams 12, 12, and hangs a wire 24 with a base on a hook 23 at the end of the chain. Lift or suspend. The chain block may traverse the lower part of the traveling beam 22.
[0015]
Furthermore, if the upper construction space is limited in place of the chain block lifting device 20 and the PC plate 2 cannot be hung, the entire height of the carriage 3 needs to be lowered. A telescopic jack (not shown) that expands and contracts by hydraulic pressure or the like is used, and an eyebolt (not shown) is screwed into a screw part (not shown) of a grout hole of the PC plate 2 to lower the lower end of the telescopic jack. It may be lifted and hung by connecting with a part and a shackle (not shown).
[0016]
The grout hole is for injecting a grout material such as mortar into a gap due to unevenness with the roadbed 1 when the PC plate 2 is laid on the roadbed 1. A nipple (not shown) is embedded in the surface. One lifting device 20 is provided on each of the left and right sides in the longitudinal direction, and is operated efficiently by a PC plate laying work cycle described later. Also good.
[0017]
Next, FIG. 3 shows details of the PC plate manufacturing apparatus 4. The PC plate 2 incorporates a rebar 5 processed at a construction site in a box of a predetermined size in which a mold 30 that can be disassembled is formed by a foam tie (not shown), and the upper part is placed in the mold 30. The ready-mixed concrete 6 is cast from the opening 30a, the upper part is covered with a vinyl sheet 31 or the like, and the cured product is cured with a curing device 32. The mold 30 is made of steel, plastic, wood or the like. In addition, formation of the joint part for coupling | bonding the said PC plate 2 and embedding of the slit material for preventing generation | occurrence | production of a crack are suitably formed according to design.
[0018]
The size of the PC plate 2 is, for example, a length of 5 m in the road longitudinal direction, a length of 3.25 m (maximum) in the road width direction, a thickness of 25 cm, and a weight of about 11 tons. Assuming that the length of one paving operation is about 20 m, four PC plate manufacturing apparatuses 4 for manufacturing four PC plates 2 in one operation are required. Therefore, there is a problem of how quickly the PC plate 2 is cured to produce a strong PC plate 2. The strong concrete 6 is determined by how the amount of water W relative to the cement C is reduced. That is, increasing the C / W increases the concrete strength in proportion.
[0019]
In the conventional cast-in-place concrete, the concrete slump is about 18cm, and the compressive strength is about 21N / mm. ² (28 days have passed). However, when the PC plate 2 is manufactured using the mold 30, it is possible to use hard concrete with a slump of about 3 cm, and when the curing device 32 described later is used, the heating temperature is raised and the curing is performed. The curing time can be shortened and the concrete strength is about 50 N / mm. ² (28 days have passed) and more than twice as much as cast-in-place concrete. Furthermore, since the concrete strength increases, the thickness of the PC plate can be reduced compared with the conventional case, and the material cost can be reduced. The curing device 32 is performed by placing the mold 30 of the PC plate 2 on a curing bed 34 and heating from below with electricity.
[0020]
Fixing tools 38, 38 are attached to the left and right sides of the support members 33, 33 of the curing bed 34, a heat insulating material 37 is stretched over the fixing tools 38, 38, and far-infrared rays using carbon fibers are provided thereon. The ready-mixed concrete 6 in the mold 30 is directly and uniformly heated through the buffer material 35 using the planar sub-projector 36 having the wavelength as a heat source.
[0021]
By using electricity, the curing device 32 can reduce the cost by about 1/4 compared with the conventional steam curing kerosene. Furthermore, if cheap late-night power is used, the cost is reduced to about 1/6, and it is optimal for a construction site where there is no need for a boiler manager and no noise and exhaust gas countermeasures are required.
[0022]
Next, the laying operation of the PC plate 2 will be described with reference to FIGS. FIG. 4 shows a state in which the ready-mixed concrete 6 is placed on the previous day by the PC plate manufacturing apparatus 4 and the cured PC plate 2 is lifted by the lifting device 20 and laid at a predetermined position. The PC plate 2 needs to be demolded from the mold 30 using the lifting device 20, and a keren operation is performed to scrape off the mortar adhering to the inside of the mold 30 after demolding. In order to facilitate demolding, a release agent may be applied to the mold 30 before the ready-mixed concrete 6 is placed. The PC plate 2 is laid out by repeating the demolding operation and the cleansing operation of the mold 30 sequentially from the PC plate manufacturing apparatus 4.
[0023]
FIG. 5 shows the work of the rebar material on the work space 15a on the carriage 3 and the use of the lifting device 20 in the PC plate manufacturing apparatus 4 to assemble the mold 30 and the processed pre-assembled rebar 5 therein. Indicates the state to be set. Since four PC plate manufacturing apparatuses 4 are required as described above, two sets are stacked in two in the longitudinal direction by using the two lifting apparatuses 20 and 20 and the work space 15a.
[0024]
FIG. 6 shows a state in which the ready-mixed concrete 6 is placed by the concrete bucket 7 suspended in the lifting device 20 in the PC plate manufacturing apparatus 4. The concrete bucket 7 is prepared by temporarily stocking ready-mixed concrete 6 from a truck mixer truck in the bucket, opening the lower gate on the PC plate manufacturing apparatus 4 and inserting it through the opening 30 a at the upper part of the mold 30. . Instead of the concrete bucket 7, the ready-mixed concrete 6 may be directly placed from a concrete pump truck.
[0025]
Further, compaction of the ready-mixed concrete 6 placed in the mold 30 is performed by the vibrator 8 installed on the floor beam 15 of the carriage 3, but it is also performed supplementarily by a rod-shaped vibrator. After placing the ready-mixed concrete 6, the upper part of the PC plate manufacturing apparatus 4 is covered with a vinyl sheet 31 or the like, and curing is started by the curing apparatus 32. As described above, the PC plate 2 is efficiently manufactured using the work space 15a and the two lifting devices 20 and 20. During each operation, several outriggers (not shown) for preventing shaking of the carriage 3 are installed and fixed to the roadbed 1 for safety.
[0026]
When the carriage 3 moves, the fixing by the outrigger is released.
[0027]
Here, the daily work cycle of the above-described PC plate laying work is schematically illustrated. Curing from the previous day is finished at 8 am, mold removal and keren work from 8 am to 9 am, and 12 from 9 am PC laying work until time, rebar assembling work from 13:00 to 14:00, rebar setting work from 14:00 to 15:00, ready concrete in the formwork from 15:00 to 18:00 From 18 o'clock to 8 o'clock in the next morning, concrete curing is performed over 14 hours with a demolding strength of 15 N / mm ² To enter the next work cycle.
[0028]
Although the illustrated work cycle shows the process of curing at night and laying the PC plate during the day, the PC plate laying work may be performed at night due to traffic conditions at the construction site. In this case, the work time is appropriately changed. Moreover, since the curing time can be completed in 8 hours by raising the heating temperature in the device using the curing device 32, the work cycle can be further increased and the entire process can be shortened.
[0029]
By the way, since the mobile carriage 3 on which the PC plate manufacturing apparatus 4 described so far is moved moves on one side in the longitudinal direction, road traffic alternates on the other side.
[0030]
Therefore, as shown in FIG. 7, movable jet piers 17 and 18 on which the automobile can pass are also installed on both sides of the PC plate manufacturing apparatus 4 so that the entire road can pass. On the left side of the figure, there is a moving pier 17 that connects the roadbed 1 and the parallel bridge 16 with a slope so that it can pass from the roadbed 1 to the PC plate manufacturing apparatus 4, and also on the right side of the figure the bridge 16 and the roadbed. A moving pier 18 connecting 1 and the slope 1 is provided. Further, the slope of the moving piers 17 and 18 needs to be about 10%. Further, the movable piers 17 and 18 support the upper inclined traveling surfaces with main columns 17 a and 18 a, and the main columns 17 a and 18 a are reinforced with diagonal members 14. The moving means is a self-running on a track (not shown) previously arranged on the roadbed 1 by disposing a carriage (not shown) with a motor driven wheel attached to the lower part.
[0031]
Also, a carrier car (not shown) for transporting the automobile may be disposed in the moving piers 17 and 18, respectively, and the carrier car may carry the mobile piers 17 and 18 on its back so that it can be self-propelled by the carrier car. . The movement is carried out continuously for every laying length (5 m) of the PC plate 2, and the PC plate 2 to be laid next is manufactured with the PC plate manufacturing apparatus 4 installed on the laying surface while eliminating the road blocking on one side of the road. can do.
[0032]
FIG. 8 shows a state in which materials such as reinforcing bars are carried in and out of the cart 3. When materials are loaded from the right side of the figure, the vicinity of the right end of the moving pier 18 is raised by a jack 19 to create a space between the roadbed 1 and the upper portion of the moving pier 18, and a truck or the like is allowed to enter the space. Do it. When carrying in from the right side of the figure, the moving pier 17 is raised by the same method. In this case, the upper passage is temporarily closed. After carrying-in work, the jack 19 is removed and the mobile piers 17 and 18 are returned to their normal positions. Thus, when the moving piers 17 and 18 are installed and road pavement work is performed, traffic regulation is relaxed compared to the operation of the mobile carriage 3 alone.
[0033]
Next, a second embodiment will be described with reference to FIGS. The movable carriage 3 is composed of a truck tractor 40 and a semi-trailer 15a that provides the truck tractor 40 with a substantial portion of the load via a connecting device, and the PC plate manufacturing apparatus 4 is placed on the semi-trailer 15a. It is self-propelled with a base.
[0034]
On the floor beam 15 of the semi-trailer 15a, an intermediate outrigger 41, 41 is erected on the front part of the semi-trailer 15a in the vicinity of the rear axle of the rear part, and the upper part in the longitudinal direction is the receiving beam 12, 12 And the traveling beams 22, 22 on which the trolley 21 of the lifting device 20 travels are supported.
[0035]
The intermediate outriggers 41, 41 are arranged so as to be shifted from side to side in the longitudinal direction so that the PC plate 2 can be pulled out in the width direction of the road so that the PC plate 2 can pass through. The load at the time of laying the PC plate 2 is supported so that it can move.
[0036]
Further, the traveling beams 22 and 22 are pulled out from the semi-trailer 15a on the receiving beams 12 and 12 so that the lifting device 20 can be disposed at a predetermined position in the longitudinal direction when the PC plate 2 is laid. In addition, racks 43 and 43 for running the trolley 21 are provided on the upper surface.
[0037]
Rear outriggers 42, 42 that support the lifting device 20 when the PC plate 2 is installed are erected at the rear ends of the traveling beams 22, 22.
[0038]
Telescopic jacks (not shown) are provided inside the rear outriggers 42, 42, and can be moved in the vertical direction. When the carriage 3 is traveled, it is shrunk and mounted on the semi-trailer 15a, and when the PC plate 2 is installed. Extend and support the lifting device 20.
[0039]
Further, the trolley 21 is mounted on the traveling beams 22 and 22. The trolley 21 meshes with the racks 43 and 43 by pinions 44 and 44 rotated by motors 45 and 45 and travels in the longitudinal direction.
[0040]
The reason why the trolley 21 is driven by the racks 43 and 43 and the pinions 44 and 44 is that the trolley 21 can travel without slipping even when the road has a slope.
[0041]
Further, the trolley 21 is suspended below the traveling beams 22, 22, and the lifting device 20 is horizontally disposed at the lower end thereof so that the lifting device 20 can be lifted and lowered smoothly. Guides 46, 46, 46, 46 are provided, and an elevating jack 47 for elevating the lifting device 20 up and down is provided in the longitudinal direction parallel to the traveling beams 22 and 22 at the upper end.
[0042]
The upper central portion of the lifting device 20 and the lifting jack 47 are coupled by a rope 48 guided by sheaves 49, 49 disposed on the trolley 21, and the PC is mounted on the lower portion of the lifting device 20. The plate 2 is gripped and the PC plate 2 is disposed at a predetermined position.
[0043]
Next, the laying operation of the PC plate 2 will be described.
[0044]
After the roadbed 1 is formed, a lining plate 39 is laid on the roadbed 1 with a forklift 50 as a plate-like body for preventing wrinkles of the tires 9, 9. The size of the lining plate 39 is determined by the carriage 3 or the like, and for example, the length in the longitudinal direction is 1 m and the length in the road width direction is 3 m.
[0045]
As shown in FIG. 9, the carriage 3 moves backward on the lining plates 39, 39... To the vicinity of the laying position of the PC plate 2. Then, when the size of the PC plate 2 is, for example, 5 m in the longitudinal direction and 3.25 m in the road width direction, the lining plates 39, 39. Remove 5 sheets with the forklift 50.
[0046]
Next, as shown in FIG. 10, after the carriage 3 is stopped at a predetermined position, the intermediate outriggers 41 and 41 are pulled out in the width direction of the road and the receiving jacks 39 are placed on the lining plate 39 by internal extension jacks. The beams 12 and 12 are fixed.
[0047]
Next, as shown in FIG. 11, the traveling beams 22 and 22 are pulled out to the rear of the carriage 3 to a position where the laying space for the PC plate 2 is secured, and the extension jacks built in the rear outriggers 42 and 42 are used. It is fixed on the existing PC plate 2.
[0048]
Next, as shown in FIG. 12 to FIG. 14, the PC plate 2 manufactured by the PC plate manufacturing apparatus 4 is gripped by the lifting device 20 and is moved onto the traveling beams 22 and 22 by the trolley 21. And move to the laying position of the PC plate 2.
[0049]
Thereafter, the PC plate 2 is disposed at a predetermined position by the lifting operation of the lifting jack 47.
[0050]
After the PC plate 2 is laid, each device on the carriage 3 is stored for the next PC plate 2 laying, and then the carriage 3 is moved forward to create a place for laying the next PC plate 2. .
[0051]
9 to 12 are repeated, and the PC plates 2, 2,... Are continuously arranged.
[0052]
Next, a third embodiment will be described with reference to FIGS. As in the second embodiment, the movable carriage 3 is composed of the truck tractor 40 and the semi-trailer 15a via a coupling device. However, the semi-trailer 15a coupling device is used in place of the trolley 21 type lift. The crane main body 51 of the truck crane is mounted on the top and the lifting work is performed.
[0053]
A telescopic jack 53 for horizontally swinging the crane boom 52 is installed at the lower part of the crane body 51, and the swing angle θ is expanded by the expansion and contraction of the telescopic jack 53. ₁ Is approximately 20 °. The crane boom 52 is composed of a multistage boom, and each boom is expanded and contracted by a predetermined length by a built-in extension jack (not shown). Furthermore, the undulation angle θ of the crane boom 52 ₂ Telescopic jacks 54 and 54 that can be set to approximately 10 ° are installed on the crane body 51.
[0054]
The lifting device 20 for gripping the PC plate 2 is attached to the most advanced boom of the crane boom 52. During traveling of the carriage 3, the crane boom 52 is accommodated to a minimum length, and the lifting device 20 is installed at a substantially central position of the semi-trailer 15a.
[0055]
Next, the laying operation of the PC plate 2 will be described with reference to FIG. The front outriggers 55 and 55 and the rear outriggers 56 and 56 of the carriage 3 are pulled out from the semi-trailer 15a in the road width direction and are laid on the roadbed 1 by a built-in telescopic jack (not shown). The carriage 3 is fixed on the lining plate 39.
[0056]
Thereafter, the PC plate 2 manufactured by the PC plate manufacturing apparatus 4 is gripped by the lifting device 20, and the telescopic jacks 54 and 54 are extended and lifted. Further, after the crane boom 52 is fully extended to the laying position of the PC plate 2, the turning angle θ due to the expansion / contraction of the expansion jack 53 is obtained. ₁ And the undulation angle θ by reducing the extension jacks 54, 54 ₂ The PC plate 2 is arranged at a predetermined laying position by the adjustment. 57 shows the drive part and counterweight of each expansion-contraction jack.
In addition, the size of the PC plate, the size of the lining plate, the number of PC plate manufacturing apparatuses, the number of carriages, etc. shown in the embodiment are not limited to this, and the road design of the PC plate laying As appropriate.
[0057]
Thus, the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.
[0058]
【The invention's effect】
As described in detail in the above embodiment, the invention according to claim 1 uses a lifting device immediately after curing because a PC plate is manufactured on a carriage moving on a road pavement laying surface. Since the PC plate can be laid continuously according to the pavement laying direction, the construction period can be greatly shortened, and one side of the road can always pass.
[0059]
Moreover, after laying the PC plate, it can immediately move to the traffic opening or asphalt surface.
[0060]
In the invention according to claim 2, since the plate-like body for temporary installation is laid after the roadbed is formed, it is possible to prevent wrinkles due to the rotating body of the moving carriage on which the heavy load is mounted, and to smoothly prevent the roadbed from being damaged. Can be moved to.
[0061]
In the invention of claim 3, since the rotating body is disposed at the lower part of the movable carriage, it can be easily moved, and the PC plate is manufactured with the mold and the curing device on the carriage, so that the strength is strong. A PC plate having excellent durability can be produced.
[0062]
Furthermore, since a series of operations such as form setting, concrete placement, curing, and PC plate laying are performed on the cart based on the process cycle, it is possible to efficiently manage the PC plate laying work and shorten the construction period. It is an invention that has various remarkable effects, such as greatly reducing construction costs.
[Brief description of the drawings]
FIG. 1 is a side view of a mobile trolley for laying a PC plate, showing an embodiment of the present invention.
FIG. 2 is a front view of FIG.
FIG. 3 is an enlarged vertical side view of the PC plate manufacturing apparatus.
FIG. 4 is a side view of a carriage showing PC plate laying work.
FIG. 5 is a side view of the carriage showing the setting work of the prefabricated reinforcing bars in the PC plate manufacturing apparatus.
FIG. 6 is a side view of a carriage showing concrete placing work in a PC plate manufacturing apparatus.
FIG. 7 is a schematic side view of installation of a moving jetty.
FIG. 8 is a schematic side view showing a rising state of a moving jetty.
FIG. 9 is a side view showing an installation state of a mobile carriage according to another embodiment.
FIG. 10 is a side view of a movable carriage showing an installation state of an intermediate outrigger.
FIG. 11 is a side view of a movable carriage showing a state in which a traveling beam is pulled out.
FIG. 12 is a side view of the moving carriage showing the lifted state of the PC version.
13 is a view taken along arrow XX in FIG.
14 is a view taken in the direction of arrows YY in FIG.
FIG. 15 is a side view showing an installed state of a mobile carriage according to still another embodiment.
FIG. 16A is a plan view of a carriage showing a PC plate laying operation.
(B) A side view of FIG.
[Explanation of symbols]
1 Roadbed
2 Precast concrete paving plate (PC version)
3 carts
4 PC plate manufacturing equipment
9 Rotating body (tire)
15 Floor beams
20 Lifting device
30 formwork
32 Curing equipment
39 Plate body (lining plate)

Claims (3)

In a paving method such as a road in which a PC plate is sequentially laid on a roadbed using a lifting device, a carriage that moves with the progress of the laying position of the PC plate is installed on the roadbed near the PC plate laying surface, In addition, a predetermined number of PC plate manufacturing devices are placed on the floor beam of the carriage, concrete is placed in the PC plate manufacturing device, and after curing, the PC plate is moved by a lifting device that can move the PC plate. The PC plate is continuously disposed while repeatedly moving the carriage to the laying position of the next PC plate and repeatedly laying the PC plate at a predetermined position. PC laying method on the road paving. In a road paving method in which PC plates are sequentially laid on a roadbed using a lifting device, a plate-like body for temporary installation is laid on the roadbed, and the PC plate is laid on the plate-like body A carriage that moves as the position progresses is installed in the vicinity of the PC plate laying surface, and a predetermined number of PC plate manufacturing apparatuses are placed on the floor beam of the carriage, and concrete is placed in the PC plate manufacturing apparatus. After further curing, the plate body on the next PC plate laying position is removed, and the PC plate is laid on a predetermined position by a movable lifting device. The PC plate on a pavement such as a road, wherein the PC plate is moved to the laying position of the PC plate, and the PC plate is continuously arranged while repeating the removal of the plate-like body and the laying of the PC plate. Laying method. In a pavement device such as a road that sequentially lays PC plates on a roadbed using a lifting device, a rotating body is disposed at the bottom of the carriage that moves with the progress of the laying position of the PC plates, and the floor of the carriage On the beam, the periphery is made up of a formwork, the upper part is provided with an opening through which rebar and concrete can be carried, and the lower part is provided with a predetermined number of PC plate manufacturing apparatuses provided with a concrete curing device, and A PC plate laying apparatus for pavement on a road or the like, wherein a lifting device capable of moving the PC plate to a laying position is installed on an upper portion of the carriage.

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