JP7283254B2 - Long material supply system and long material erection method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long material supply system for erecting a long material transported to a construction site at a planned erection position, and a long material erection method using the long material supply system.

Conventionally, when erecting long materials such as pile materials and column materials transported to the construction site at the planned erection position, first, a plurality of long materials in a lying down position loaded on the loading platform of the transport vehicle Unloading work is carried out by suspending the materials one by one using a crane and temporarily placing them in a temporary storage area. After that, using a crane again at the temporary storage site, the long material in the lying down position is erected and converted to the standing position, the long material in the standing position is lifted and moved, and erected at the planned erection position. there is

Under such circumstances, for example, Cited Document 1 discloses a method of using a pillar erecting device when erecting a pillar in a sideways posture at a temporary storage site. Specifically, the column erecting device is configured to include an L-shaped rotating body that can be attached to the lower end and the lower end surface of the column, and an expansion device that gently rotates the rotating body, This is installed in a temporary storage place in advance.

Then, in a temporary storage place, the pillar in a sideways posture is moved to the pillar erecting device, and the lower end of the pillar is fixed to the rotatable body of the pillar erecting device so as to be in a horizontal posture. After that, the pillar is gently changed from the horizontal posture to the vertical posture by using the rotating body and the extension device of the pillar erecting device, and the pillar in the vertical posture is installed at a desired location.

JP-A-2004-251039

According to Patent Literature 1, a pillar placed in a temporary storage area lying down can be gently erected via a platform, so slipping and rolling that tend to occur when changing the posture of the pillar can be prevented. This can be reliably prevented and work can be performed efficiently.

However, the work of unloading the pillars from the transport vehicle to the temporary storage site, and the work of placing the pillars on the pillar erection equipment at the temporary storage site, are all done while lifting the pillars with a crane. Need to implement. For this reason, workers use intermediary ropes attached to the pillars to control the suspended pillars. , it tends to be difficult to suppress behavior such as crossing the border or jumping out of the construction site.

Also, in many cases, long materials such as pillars are generally piled up on the carrier of a transport vehicle in a sideways posture and tied up to be carried into a construction site. For this reason, the long materials are likely to collapse or roll during unpacking work when temporarily placing them in a temporary storage area.

In this way, the erection work of long materials, which includes many processes in which work is carried out while being lifted by a crane, must be carried out while considering various dangers and taking countermeasures, and the work tends to become complicated. Poor workability.

The present invention has been made in view of such problems, and its main object is to provide a long material supply system and a long material supply system capable of efficiently performing erection work of long materials. Provide a method for erecting the long material used.

In order to achieve such an object, the long material supply system of the present invention is a long material supply system for erecting a long material in a laterally lying posture and erecting it in a planned erection position. a device for preventing overturning of a long material, comprising a pallet on which the long material is placed; and a plurality of upright members provided on the pallet for suppressing behavior of the long material in a direction orthogonal to an axis line; A long-material receiving device provided in the vicinity of a planned position and provided with a frame on which the long-sized material to which the long-sized overturning prevention device is attached is temporarily placed; and a long material erecting device installed between and for assisting the erection behavior of the long material temporarily placed on the pedestal, wherein the long material erecting device has a vertical direction The rotation assisting tool is provided for rotating the elongated material temporarily placed on the pedestal , and the elongated material is in a state in which the restraint in the overturn prevention device for the elongated material is released. is attached near one end of the

According to the long material supply system of the present invention, the behavior of the long material in the direction perpendicular to the axis line is suppressed by the long material overturning prevention device while the long material is lying down, and the long material is converted from the lying down posture to the standing posture. During the period, behavior other than rotation in the vertical direction is restrained by the erection device for the long material. As a result, the long member is always kept stable in any posture until it is erected at the planned erection position.

For this reason, there is a risk of long materials collapsing or rolling, or jumping out of the construction site or crossing the border, etc., which were likely to occur in the erection method, which includes many processes in which work is carried out while being lifted by a conventional crane. events can be suppressed. Therefore, it is possible to greatly improve the efficiency of the entire series of operations from transporting the long material to erecting the long material at the planned erection position.

In the long material supply system of the present invention, the long material overturn prevention device is provided with a traveling body, and the long material receiving device is provided with a height adjuster for adjusting the height of the pedestal. It is characterized by being

According to the long material supply system of the present invention, by adjusting the height of the pedestal to the height of the platform of the transport vehicle that transports the long material via the height adjuster, the long material overturn prevention device can be used. Using the provided traveling body, the long material can be moved from the loading platform of the transport vehicle to the pedestal and temporarily placed on the pedestal. As a result, the long material can be temporarily placed on the gantry without being suspended using a crane, so that the efficiency of erecting the long material can be further improved.

In the method for erecting long materials according to the present invention, the long materials carried in with the device for preventing overturning of long materials mounted thereon are temporarily placed on the pedestal of the load receiving device for long materials. In the vicinity of one end side of the elongated material, the rotation assisting tool of the elongated material erecting device is attached, and the other end side of the elongated material to which the rotation assisting tool is attached is lifted to raise the elongated material. is erected, the elongated material in the erected posture is lifted, and erected at the planned erection position.

According to the method for erecting a long material of the present invention, the long material is held in a stable state by using the long material overturn prevention device, the long material receiving device, and the long material erecting device. After changing from the lying down position to the standing position, the long material in the standing position is lifted and erected at the planned erection position. can.

As a result, it is possible to greatly reduce the amount of work that workers have to do to control the suspended pillars using intermediary ropes, which not only makes it possible to greatly improve workability, but also makes it possible to work in narrow construction areas. Even when the construction site is located in the vicinity of the construction site or when there is a roadway or the like, it is possible to suppress phenomena such as the pillar material crossing the border or jumping out from the construction site, so that the erection work can be carried out safely.

According to the present invention, regardless of the posture of the long material, a stable state can be maintained using the long material supply system, and the long material is erected at the planned position after the long material is conveyed. It is possible to greatly improve the efficiency of the entire series of work up to.

1 is a plan view of a long material supply system according to an embodiment of the present invention; FIG. It is a figure which shows the side surface of the long material supply system in embodiment of this invention. It is a figure which shows the state which made the steel pipe pile erect using the long material supply system in embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the erection method of the steel pipe pile using the long material supply system in embodiment of this invention (part 1). It is a figure which shows the erection method of the steel pipe pile using the long material supply system in embodiment of this invention (part 2). It is a figure which shows the erection method of the steel pipe pile using the long material supply system in embodiment of this invention (the 3).

The long material supply system and long material erection method using the long material supply system of the present invention can be applied to any long material such as a building pillar material, a core material of a continuous underground wall, a pile material, etc. Although it can be adopted, in the present embodiment, a case where a steel pipe pile is adopted as a long material will be taken as an example, and the details will be described below.

≪Long Material Supply System≫
As shown in FIG. 1, the long material supply system 100 includes a long material overturn prevention device 10 that restrains the steel pipe pile P, a long material receiving device 20 installed at the construction site, and a long material erection device. A device 30 and a long material feeding guide 40 are provided.

<Overturn prevention device for long materials>
As shown in FIGS. 1 and 2, the device 10 for preventing overturning of a long material includes a pallet 11 on which steel pipe piles P lying sideways are placed, and a plurality of standing members 12 installed on the upper surface of the pallet 11. , a plurality of running bodies 13 installed on the lower surface of the pallet 11, and a restraining belt 14 for restraining the steel pipe pile P to the pallet 11.

The pallet 11 is formed of a rectangular plate material having a length L1 shorter than the steel pipe pile P and a width W1 approximately equal to or slightly larger than the cross-sectional diameter of the steel pipe pile P. Located in the middle of the direction.

Moreover, a plurality of standing members 12 are installed on the upper surface of the pallet 11 to prevent the steel pipe piles P on the pallet 11 from rotating or rolling in the direction perpendicular to the axis. The upright members 12 may be of any shape and quantity, such as wall members and pillar members.

Further, the traveling body 13 may be of any type as long as it can move the pallet 11 on which the steel pipe piles P are placed. are installed in the direction perpendicular to the axis of the steel pipe pile P, one at each of the four corners of the lower surface of the pallet 11, a total of four.

The restraint belt 14 is a belt-shaped member that restrains the behavior of the steel pipe pile P rotating or rolling in the direction perpendicular to the axis line together with the upright member 12, and is capable of restraining the steel pipe pile P with respect to the pallet 11 and making it detachable. Any member may be adopted as long as it can be used. Moreover, the installation position may be directly installed on the pallet 11 or may be installed using the standing member 12 . Note that the restraint belt 14 may not necessarily be provided when the behavior of the steel pipe pile P moving in the direction orthogonal to the axis line can be suppressed only by the standing member 12 .

<Long Material Receiving Device>
As shown in FIGS. 1 and 2, the long material receiving device 20 includes a pedestal 21 that serves as a temporary storage place for the steel pipe pile P to which the long material overturn prevention device 10 is mounted, and a plurality of heights that support the pedestal 21. and an adjuster 22 .

The pedestal 21 is formed to have a width W2 in a plan view such that two long-material overturn prevention devices 10 having steel pipe piles P mounted thereon can be arranged in parallel, and a guide rail 25 is installed on the upper surface thereof. The guide rails 25 guide the moving direction of the traveling body 13 provided in the device 10 for preventing overturning of long materials, and are arranged in parallel in two rows extending in the width direction of the base 21 . The width W2 of the frame 21 is not limited as long as it is large enough to accommodate at least one device 10 for preventing overturning of long materials.

A projecting plate 24 is attached to one end of the pedestal 21 in the width direction so as to be retractable. The protruding plate 24 may be detachably attached to the pedestal 21 or may be provided to be retractable with respect to the pedestal 21 . 25 are provided.

On the other hand, a stopper 23 is installed on the other end side of the pedestal 21 in the width direction to prevent the overturning prevention device 10 for long materials traveling on the guide rail 25 from running away. As a result, when the transport vehicle T is laid on one end side of the gantry 21 in the width direction, and the projecting plate 24 is installed so as to straddle the transport vehicle T and the gantry 21, the overturn prevention device for the long material on which the steel pipe pile P is mounted. 10 moves on the guide rail 25 of the projecting plate 24 and is intercepted by the frame 21. - 特許庁

Then, the device 10 for preventing overturning of the elongated material, which has been intercepted on the pedestal 21, is movable on the guide rail 25 until it abuts against the stopper 23, that is, to the other end of the pedestal 21 in the width direction.

The height adjuster 22 adjusts the installation height of the pedestal 21. Any device such as a hydraulic jack or pantograph that can adjust the height of the pedestal 21 to be substantially equal to the height of the carrier of the transport vehicle T can be used. Either can be adopted. Moreover, any quantity may be used, and as long as it is possible to support the pedestal 21 in a state where the steel pipe pile P on which the device 10 for preventing overturning of the long material is temporarily placed is supported, there is no limitation.

The long material receiving device 20 is installed on a support plate F laid on the ground surface. The support plate F is a so-called laying iron plate that disperses the load transmitted from the pedestal 21 and the height adjuster 22, and secures a sufficiently larger area than the pedestal 21 in plan view. In addition, the mode of installation may be directly placed on the ground surface, or may be placed on the ground surface via an unevenness adjusting member.

<Long material erection device>
As shown in FIGS. 1 and 2, the long-material erecting device 30 is installed on the support plate F in the same manner as the long-material receiving device 20. It is composed of a horizontal shaft 32 that spans across and a rotation assisting tool 33 that rotates in the vertical direction about the horizontal shaft 32 as an axis.

The pair of pillars 31 are erected at intervals along one side end parallel to the width direction of the pedestal 21 , so that the horizontal shaft 32 supported by the pair of pillars 31 extends across the width of the pedestal 21 . It is placed parallel to the direction and rotates vertically.

The rotation assisting tool 33 contacts the bottom plate 331 that contacts the end surface of the tip side Pt of the steel pipe pile P that is temporarily placed on the frame 21 with the device 10 for preventing overturning of the long material attached, and the side peripheral surface. It is formed into an L-shaped member made up of a support plate 332 in contact therewith.

A horizontal shaft 32 is installed on the splint plate 332, and when the auxiliary rotation tool 33 rotates around the horizontal shaft 32, the bottom plate 331 perpendicular to the frame 21 of the long-material receiving device 20 is rotated as shown in FIG. Move to a parallel state as shown.

A rotation stop 333 is provided on the support plate F so as to stop the rotation of the auxiliary rotation tool 33 when the bottom plate 331 becomes parallel to the base plate 21 . Further, the splint plate 332 is provided with a fixing band 34 for fixing the steel pipe pile P by pressing it against the splint plate 332 .

<Long material supply guide>
As shown in FIGS. 1 and 3, the long material supply guide 40 is intended to pass between the long material erection device 30 and the steel pipe press-in machine M while the steel pipe pile P is suspended. A pair of protective fences 41 defining a passage 43 and a connecting member 42 connecting them are provided.

A pair of protective fences 41 are installed on the upper surface of the support plate F, and the suspended steel pipe pile P may accidentally fall between the long material erection device 30 and the steel pipe press-in machine M. Any shape or material may be used as long as it has enough strength to prevent the deviation of the steel pipe pile P without breaking even if it collides with it when it is swayed in a direction orthogonal to the passage 43 .

The pair of protective fences 41 may be fixed to the support plate F, or may be installed detachably, and the size thereof may be made variable. For example, the accordion fence may be made very stretchable, or the protective fence 41 may be made into a modular shape so that the required number can be increased.

≪Position of long material supply system≫
In the long material supply system 100 described above, a case where the installation position of the steel pipe press-in machine M (the planned erection position of the steel pipe pile P) is in the center of the road in service is taken as an example, and referring to FIG. The arrangement position will be described below. First, the long material receiving device 20 is arranged between the steel pipe press-in machine M and the crane C used when the steel pipe pile P is hoisted into the steel pipe press-in machine M.

At this time, the frame 21 is arranged so that the width direction in which the guide rails 25 extend is perpendicular to the imaginary line V connecting the steel pipe press-fitting machine M and the crane C. As shown in FIG. On the imaginary line V and between the long material receiving device 20 and the steel pipe press-fitting machine M, the long material erecting device 30 and the long material supply guide 40 are arranged. A stop S for transport vehicles is arranged on one end side of the material receiving device 20 in the width direction.

<<Method of erecting a long material using a long material supply system>>
Next, at the position where the steel pipe press-in machine M is placed in the center of the road in service (the planned position for erecting the steel pipe pile P), the method for erecting the long material using the long material supply system 100 is performed. The procedure is described below.

First, as a preliminary preparation, as shown in FIG. 4, the steel pipe press-in machine M and the crane C are brought into a predetermined position by restricting lanes in the vicinity of the range where the steel pipe pile P is to be erected. Before or after these operations, the support plate F is laid between the steel pipe press-in machine M and the crane C.

The long-material receiving device 20 is installed on the support plate F, and a stop S is set adjacent to one end in the width direction of the frame 21 of the long-material receiving device 20 so that the transport vehicle T can be brought sideways. Also, the long material erecting device 30 and the long material supply guide 40 are installed on the support plate F. As shown in FIG. After that, the erection work of the steel pipe pile P is started.

The steel pipe pile P in the lying down position is loaded on the transport vehicle T in a state in which the overturning prevention device 10 for the long material is attached, and the behavior of moving in the direction perpendicular to the axis is suppressed by the upright member 12 and the restraint belt 14. transported to the construction site.

At the construction site, the transport vehicle T loaded with the steel pipe piles P is stopped at the stop S and placed alongside the frame 21 of the long material receiving device 20 . Next, the height of the platform 21 is adjusted using the height adjuster 22 so as to be substantially equal to the height of the platform of the transport vehicle T, and a spring plate 24 is placed between the platform 21 and the platform of the transport vehicle T. bridge over.

After that, the wheel stop 15 on the loading platform of the transport vehicle T is removed, and as shown in FIG. It is taken over on the mount frame 21 . In addition, when the steel pipe pile P is temporarily placed on the frame 21, the front end side Pt is arranged toward the side where the steel pipe press-fitting machine M is installed.

At this time, the device 10 for preventing overturning of the long material moves along the guide rails 25 provided on the projecting plate 24 and the frame 21 via the traveling body 13, so that the steel pipe pile P can be smoothly moved from the loading platform of the transport vehicle T. It can be moved onto the pedestal 21 that serves as a temporary storage place.

Therefore, on the loading platform of the transport vehicle T, the steel pipe piles P do not collapse or roll, and the swinging of the load, which is likely to occur when temporary placement is performed by the crane C, which has been conventionally carried out, can be prevented. never occur. For this reason, the control of the steel pipe pile P using an intervening rope by the operator becomes unnecessary.

In addition, since the steel pipe pile P in the laterally lying posture is restrained by the long material overturn prevention device 10 via the standing member 12 and the restraining belt 14, it is transported by the transport vehicle T before being carried into the site, and The steel pipe pile P does not overturn during any period of temporary placement on the pedestal 21 after being moved on the pedestal 21, and can always maintain a stable state.

Next, as shown in FIG. 5, the long material overturn prevention device 10 is moved to the other end side in the width direction of the frame 21, and the end surface of the tip side Pt of the steel pipe pile P and the bottom plate 331 of the rotation auxiliary tool 33 abut. Also, the side peripheral surface of the steel pipe pile P is brought into contact with the splint plate 332 of the rotation assisting tool 33 , and the fixing band 34 is used to press the steel pipe pile P against the splint plate 332 to fix it.

Simultaneously with or before or after this work, a lifting member H for lifting with a crane C is attached near the end of the head side Ph of the steel pipe pile P. In addition, the restraining belt 14 restraining the steel pipe pile P to the overturning prevention device 10 for the long material is removed.

After that, as shown in FIG. 6, the head side Ph of the steel pipe pile P is lifted by the crane C, and the steel pipe pile P is erected until the support plate 332 of the rotation assisting tool 33 contacts the rotation stopper 333. wake up

As a result, the posture of the steel pipe pile P is changed from the lateral lying posture to the standing posture while being assisted by the long material erecting device 30 . In addition, a counterweight 35 is placed in advance on the support plate F as necessary to prevent the lifting of the long material receiving device 20 that may occur when the steel pipe pile P is changed from the lying posture to the standing posture. should be taken.

At this time, in the vicinity of the end of the tip side Pt of the steel pipe pile P, only the behavior of rotating in the vertical direction is permitted by the rotation auxiliary tool 33, and other behaviors are restrained, so the attitude of the steel pipe pile P To prevent the steel pipe pile P from crossing the outside of the construction area and coming into contact with workers without slipping or swaying, etc. be able to.

In parallel with the operation of converting the steel pipe pile P from the lying posture to the standing posture, the new steel pipe pile P transported from the transport vehicle T is temporarily placed in an empty space on the frame 21. may

Finally, the fixing band 34 of the rotation assisting tool 33 is removed, the steel pipe pile P is lifted using the crane C, passed through the passage 43 from the long material erection device 30 and moved to the steel pipe press-in machine M, and the steel pipe press-in is carried out. Built in machine M.

When moving the steel pipe pile P from the long material erection device 30 to the steel pipe press-in machine M, the steel pipe pile P moves through the passage 43 regulated by the long material supply guide 40, so an unforeseen situation such as a strong wind may occur. However, the steel pipe pile P does not cross the outside of the construction area by colliding with the long material supply guide 40 or the like.

According to the above-described long material supply guide 40 and the long material erection method using the long material supply guide 40, the steel pipe pile P in the horizontal laying posture is moved in the direction orthogonal to the axis line by the long material overturn prevention device 10. It is carried into the construction site in a state in which movement behavior is suppressed, and is temporarily placed on the frame 21 of the long material receiving device 20 . Further, when the lying posture is changed to the standing posture, the behavior of the tip side Pt of the steel pipe pile P, which is on the lower side when standing, is regulated using the long material erection device 30 .

Then, the steel pipe pile P, which has been converted to a standing posture near the steel pipe press-in machine M, is lifted by the crane C and moved toward the steel pipe press-in machine M, which is the planned erection position. , the range of which is regulated by the long material supply guide 40 .

In this manner, the steel pipe pile P is always held in a stable state in any posture until it is erected in the steel pipe press-in machine M. For this reason, there is a risk that the steel pipe pile P will collapse or roll, or it will jump out of the construction site or cross the border, which may occur in the erection method that includes many processes in which work is performed while being lifted by a conventional crane C. Such events can be suppressed. Therefore, the efficiency and safety of the entire series of operations from transporting the steel pipe pile P to erecting the steel pipe pile P in the steel pipe press-in machine M can be significantly improved.

In addition, by greatly omitting the process of carrying out the suspension using the crane C, it is possible to greatly reduce the work of the operator to control the suspended steel pipe pile P using an intermediary rope. , Even when the construction area is located in a narrow place or when there is a roadway etc. adjacent to it, the phenomenon such as the steel pipe pile P crossing the border or jumping out from the construction site is suppressed, and the erection work is safely carried out. becomes possible.

The long material supply system and long material erection method using the long material supply system of the present invention are not limited to the above-described embodiments, and various modifications are possible without departing from the scope of the present invention. is.

For example, in the present embodiment, a guide rail 25 for guiding the running direction of the running body 13 provided in the long material overturn prevention device 10 is provided on the frame 21, and the steel pipe pile P restrained by the long material overturn prevention device 10 is provided. was taken from the loading platform of the transport vehicle T to the pedestal 21 of the long material receiving device 20, but the method of temporarily placing the steel pipe pile P on the pedestal 21 is not necessarily limited to this.

In other words, if the steel pipe pile P restrained by the long material overturn prevention device 10 can be appropriately moved on the frame 21 and temporarily placed with the axial direction of the steel pipe pile P facing the long material erection device 30 For example, omnidirectionally movable casters may be employed for the running body 13, and the guide rails 25 on the frame 21 may be eliminated. In this case, since the steel pipe pile P does not need to be intercepted from the loading platform of the transport vehicle T, the stop S of the transport vehicle may be arranged at any position with respect to the frame 21 .

Further, in the present embodiment, when the steel pipe pile P is erected, the crane C is used to lift the head side Ph of the steel pipe pile P to raise it, but the method of raising the head of the steel pipe pile P is not necessarily It is not limited to this, and any means may be adopted.

100 Long material supply system 10 Long material overturn prevention device 11 Pallet 12 Standing member 13 Traveling body 14 Restraint belt 15 Wheel stopper 20 Long material receiving device 21 Stand 22 Height adjuster 23 Stopper 24 Bounce plate 25 Guide rail 30 Long material erection device 31 Pair of pillars 32 Horizontal shaft 33 Rotation aid 331 Bottom plate 332 Attachment plate 333 Rotation stop 34 Fixing band 35 Counterweight 40 Long material supply guide 41 Protective fence 42 Connecting material P Steel pipe pile (long material material)
Ph head side Pt tip side (one end side)
T Transportation vehicle M Steel pipe press-in machine C Crane S Station F Support plate

Claims (3)

A long material supply system for erecting a long material in a lying down position and erecting it at a planned erection position,
A device for preventing overturning of a long material, comprising: a pallet on which the long material lying down is placed; and a plurality of standing members provided on the pallet for suppressing behavior of the long material in a direction orthogonal to an axis line. ,
a long-material receiving device that is installed in the vicinity of the scheduled erection position and has a frame on which the long-length material to which the long-material overturn prevention device is attached is temporarily placed;
a long material erecting device installed between the long material receiving device and the planned erection position, and assisting the erection behavior of the long material temporarily placed on the pedestal;
The long material erection device is equipped with a rotation aid that rotates in the vertical direction,
The rotation assisting tool is the long material temporarily placed on the long material receiving device , and is attached near one end of the long material in a state in which restraint in the long material overturn prevention device is released. A long material supply system characterized by being. In the long material supply system according to claim 1,
The device for preventing overturning of long materials is provided with a traveling body,
A long material supply system, wherein the long material receiving device is provided with a height adjuster for adjusting the height of the pedestal. A long material erecting method using the long material supply system according to claim 1 or 2,
Temporarily placing the long material carried in with the device for preventing overturning of the long material on the pedestal of the receiving device for receiving the long material,
Attaching the rotation aid of the device for erecting the long material near one end of the temporarily placed long material,
After raising the other end side of the elongated material with the rotation assisting tool attached to stand up the elongated material,
A method for erecting a long material, comprising lifting the long material in a standing posture and erecting it at the planned erection position.

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