JP2020133316A - Construction method of concrete structure and the like using water jet - Google Patents

Abstract

To attach a water jet to various construction surfaces securely, simply and quickly.SOLUTION: In this method, a plurality of electric vacuum suction pads A are attached to a plurality of predetermined places of an attaching surface of a Y-direction rail R1 so as to support the Y-direction rail R1 at an installation position of the Y-direction rail R1 together with an X-direction guide rail R2, a travel device D, and a water jet J. The Y-direction rail R1 is laid via each vacuum suction pad A so as to be attached/detached by one-touch operation of a switch of each vacuum suction pad A.SELECTED DRAWING: Figure 3

Description

The present invention relates to a method for constructing a concrete structure or the like using a water jet, which performs various constructions such as hanging, cutting, cutting, and cleaning on a construction surface such as a wall surface of a concrete structure or a steel structure using a water jet. ..

In general, when repairing, remodeling, or remodeling various concrete structures such as buildings, roads, tunnels, and bridges, concrete chipping work is involved. In the past, this fishing work was performed by applying a mechanical impact using a rock drill or breaker, but since there is a problem that noise and vibration are generated during the fishing work, noise and vibration are replaced. A method using a water jet, which makes it easy to take measures against vibration, is becoming established as an indispensable construction method. Patent Documents 1 and 2 propose a method for constructing a concrete structure or the like using this type of water jet.

Patent Document 1 relates to a wall surface lifting method. In this method, brackets are used with anchor bolts at predetermined intervals along the longitudinal direction of the rail track of a predetermined gauge directly with respect to the wall surface to be suspended. A pair of I-shaped steel rails are fixed to the bracket with bolts so as to form a predetermined gauge to form a long rail track, and a pair of water jet injection devices are used hydraulically. The movable nozzle part of the water jet injection device is reciprocated along a pair of beams straddling between the I-shaped steel rails of a predetermined gauge by using hydraulic pressure, and the movable nozzle part of the movable nozzle part. The water jet injection device is repeatedly run along the I-shaped steel rail for a predetermined pitch when switching between forward and backward movements along the beam. By doing so, although it is a method of laying rail tracks, it does not require a permanent scaffolding for track rail laying by laying directly on the hanging wall surface, and the hanging area can be increased by easily relocating the rail tracks. It can be easily expanded.

Patent Document 2 relates to a water jet cutting method. In this method, a traveling device is attached to a box-shaped suction support device, and a water jet is attached to the traveling device, and the suction support device is placed at a cutting position of a structure. Air is sucked from the inside of the suction support device by sucking air, and the water jet is driven by the traveling device on the suction support device, and the cutting position of the structure is cut by the water jet. By doing so, the water jet can be easily attached and detached, and the setup time before the cutting work can be shortened.

Japanese Unexamined Patent Publication No. 2012-2047 Japanese Unexamined Patent Publication No. 1-222899

However, the construction method for concrete structures and the like according to Patent Documents 1 and 2 has the following problems.
(1) Regarding Patent Document 1 In the chipping method of Patent Document 1, a water jet is attached to an X-direction guide rail that is movably installed on a pair of Y-direction rails, and the water jet is XY on the construction surface. It is driven in the direction and the construction surface is lifted, which is generally practiced.
In this type of lifting method, even in the hanging method of Patent Document 1, "a bracket using anchor bolts directly with respect to the wall surface to be hung, along the longitudinal direction of the rail track of a predetermined gauge, at a predetermined interval. To form a long rail track by bolting a pair of I-shaped steel rails to a bracket with bolts so as to form a predetermined gauge to form a long rail track. " Since the rail is attached to the construction surface via anchor bolts, the rails are damaged in places other than the removal points on the construction surface, and in the case of porous and brittle materials such as fireproof materials, they cannot be fixed by anchors. Further, in the case of a steel structure, a guide rail may be fixed to the construction surface by welding instead of an anchor, but even in this case, damage is given to a place other than the removal portion of the construction surface, which is not preferable. If the object to which the guide rail is fixed is fragile, or if permission to use the anchor cannot be obtained, attach a water jet to the temporary scaffolding to make a copy, or attach a water jet to heavy machinery. I have no choice but to do it. However, in the former case, there is a problem that time loss occurs due to carrying in and assembling the temporary scaffolding, and in the latter case, a space for installing heavy machinery is required and the work place is limited. In the work using a water jet, it is desired to simplify the installation work of the water jet and reduce the time loss due to the installation of the water jet, and a new solution is required.

(2) Regarding Patent Document 2 In the method of Patent Document 2, a traveling device is attached to a box-shaped suction support device, a water jet is attached to the traveling device, and the suction support device is sucked to a cutting position of a structure. Since the water jet is driven by the traveling device on this suction support device, as described in Patent Document 2, the entire device is made compact and a narrow place where the (general) traveling device cannot be brought in. If you try to use this for construction such as driving a water jet on the construction surface in the XY directions to lift the construction surface, the length of the rail used will be long. The larger the suction support device becomes, the larger the suction support device becomes, the larger the suction amount of air increases, and the larger the blower also becomes, which makes the whole device inevitably a large-scale device. In addition to the wiring and piping extending from the water jet, the number of large piping extending from the suction support device will increase, so the installation work of the water jet will have to be complicated along with the loading and unloading work of incidental equipment.

The present invention solves such a conventional problem, and in a method of constructing a concrete structure or the like using this type of water jet, the water jet is applied to various construction surfaces such as an anchor bolt or a box as in the conventional case. The purpose is to enable reliable, simple, and quick installation without using a mold suction support device, and to enable smooth execution of the original construction using a water jet on the construction surface.

In order to achieve the above object, the present invention lays a rail for running a water jet along the construction surface of a concrete structure or a steel structure, and mounts the water jet on the rail so as to be self-propelled by a running device. In the construction method of a concrete structure or the like using the water jet, the water jet is self-propelled on the rail and ultra-high pressure water is jetted from the water jet toward the construction surface. The rail can be supported together with the water jet and the traveling device at the laying position of the rail, and the board and the pads provided around the board are arranged on the board at a plurality of predetermined positions on the mounting surface of the rail. A plurality of electric motors provided, including a vacuum pump for exhausting air in a suction area surrounded by the pad, a battery for supplying power to the vacuum pump, and a switch for turning on / off the vacuum pump. The gist is that the vacuum suction pad of the type is attached, and the rail is laid detachably via each of the vacuum suction pads by one-touch operation of the switch of each of the vacuum suction pads.

In this method, it is preferable to attach the vacuum suction pad to the mounting surface of the rail so that the mounting angle of the vacuum suction pad can be adjusted. In this case, a mounting plate is provided on the substrate of the vacuum suction pad in parallel with the substrate, mounting bolts are erected on the mounting plate at a right angle, H-shaped steel is used for the rail, and the lower flange of the H-shaped steel is used. A bolt insertion hole is bored with a diameter larger than the outer diameter of the mounting bolt, and the mounting bolt of the mounting plate is mounted on the mounting plate of the vacuum suction pad from the mounting surface side. The angle between the mounting surface of the rail and the mounting plate of the vacuum suction pad is adjusted while changing the insertion direction of the mounting bolt in the bolt insertion hole through the bolt insertion hole, and the adjusted angle. It is desirable to fix the rail and the vacuum suction pad by fastening nuts to the mounting bolts at positions above and below the bolt insertion holes of the lower flange of the rail.

In this method, the following self-propelled type can be adopted for the water jet depending on the type of construction on the construction surface by the water jet (fishing, cutting, cutting, cleaning, etc.).
(1) A rail for running a water jet is composed of one rail, and a plurality of electric vacuum suction pads are attached to predetermined plurality of positions on the mounting surface of the rail, and the rail is mounted in the X direction or Y of the construction surface. The water jet is laid along the direction via each of the vacuum suction pads, and the water jet is self-propelled on the rail in the X direction or the Y direction of the construction surface by the traveling device.
(2) A rail for running a water jet is composed of a pair of rails and a water jet mounting stand spanned between the pair of rails, and a plurality of electric vacuums are applied to predetermined plurality of mounting surfaces of the pair of rails. A suction pad is attached, the rails are laid along the X direction or the Y direction of the construction surface via the vacuum suction pads, and the water jet mounting base can be self-propelled on each rail by a traveling device. At the same time, the water jet is fixedly attached to the water jet mounting base, and the water jet is self-propelled on each rail in the X direction or the Y direction of the construction surface via the water jet mounting base.
(3) A rail for running a water jet is composed of a pair of rails and a guide rail hung between the pair of rails, and a plurality of electric vacuum suction pads are provided at a plurality of predetermined positions on the mounting surface of the pair of rails. Is attached, the rails are laid along the X direction or the Y direction of the construction surface via the vacuum suction pads, and the guide rails are mounted on the rails so as to be self-propelled by a traveling device. A water jet is attached to the guide rail so as to be self-propelled by a traveling device, and the water jet is self-propelled on each rail via the guide rail in the X direction or the Y direction of the construction surface on the guide rail. Self-propelled in the Y direction or the X direction of the construction surface.

According to the construction method of a concrete structure or the like using the water jet of the present invention, the rail can be supported together with the water jet and the traveling device at the laying position of the rail, and a plurality of electric motors are provided at a plurality of predetermined locations on the mounting surface of the rail. A type of vacuum suction pad is attached, and the rail is laid detachably via each vacuum suction pad by one-touch operation of the switch of each vacuum suction pad, so the anchor bolt and box type suction support as in the past It has a special effect unique to the present invention that it can be installed reliably, easily and quickly without using an apparatus, and the original construction using a water jet can be smoothly carried out on the construction surface.

As a method for constructing a concrete structure or the like using a water jet according to an embodiment of the present invention, the water jet can be moved to a pair of Y-direction rails and these Y-direction rails on the construction surface (wall surface) of the concrete structure. The figure which shows the chipping method which performs the chipping of the construction surface by driving in the XY direction by the X-direction guide rail and the traveling device which are bridged to The figure which shows the Y direction rail used in the same construction method, and the electric vacuum suction pad attached to the Y direction rail. A diagram showing a part of the procedure in the same construction method, in particular, the procedure for attaching the equipment used in this construction method to the construction surface (wall surface). The figure which shows a part of the procedure by the same method, especially the procedure which attaches a vacuum suction pad to the rail mounting surface while adjusting the mounting angle of this vacuum suction pad.

Next, a mode for carrying out the present invention will be described with reference to the drawings.

The construction method of this concrete structure or the like (hereinafter, may be simply referred to as this method) is water along the construction surface of the concrete structure or the steel structure (these are collectively referred to as the concrete structure or the like). A rail for jet running is laid, a water jet is mounted on the rail so that it can run on its own, and while the water jet runs on the rail, ultra-high pressure water is injected from the water jet toward the construction surface. In this construction method, in particular, the rail is provided at a predetermined position on the mounting surface of the rail and around the board so that the rail can be supported at the laying position of the rail together with the water jet and the traveling device. It has a pad, a vacuum pump that is arranged on the substrate and discharges air in the suction area surrounded by the pad, a battery for supplying power to the vacuum pump, and a switch for turning on / off the vacuum pump. A plurality of electric vacuum suction pads were attached, and the rail was laid detachably via each vacuum suction pad by one-touch operation of the switch of each vacuum suction pad.

As shown in FIG. 1, as a method of constructing a concrete structure or the like using this water jet, the water jet J is movably bridged to a pair of Y-direction rails R1 and these Y-direction rails R1 on the construction surface P of the concrete structure. An example is a chipping method in which the construction surface P is chipped by being driven in the XY directions by the X-direction guide rail R2 and the traveling device D. FIG. 2 shows the Y-direction rail R1 used in this construction method and the electric vacuum suction pad A attached to the Y-direction rail R1, and FIG. 3 shows a part of the procedure in this construction method, particularly the equipment and equipment used in this construction method. The procedure for mounting the vacuum suction pad A on the construction surface (wall surface) is shown, and FIG. 4 shows a part of the procedure in this construction method, in particular, the vacuum suction pad A is attached to the mounting surface of the Y-direction rail R1 and the mounting angle of the vacuum suction pad A is adjusted. While showing the installation procedure. In this case, the construction surface P is a wall surface (vertical surface) long in the lateral direction (X direction). Hereinafter, in the description of this chipping method, the construction surface P is referred to as a wall surface P.

First, here, the equipment and equipment used in this chipping method will be described. In this chipping method, as shown in FIG. 1, a pair of Y-direction rails R1, a plurality of electric vacuum suction pads A, an X-direction guide rail R2, a traveling device D, and a water jet J are used.

As shown in FIG. 2, the pair of Y-direction rails R1 uses H-shaped steel having a predetermined length. Each of these Y-direction rails R1 is provided with a plurality of bolt insertion holes 10 at each portion of the lower flange F1 projecting on both sides of the web at both ends of the lower flange F1 facing the wall surface P when installed on the wall surface P. Ru. This point will be described later.

The electric vacuum suction pad A uses a tacho pad (registered trademark) manufactured by Stella Giken Co., Ltd. As shown in FIG. 2, the vacuum suction pad A is provided on a disk-shaped substrate 21 made of metal or resin and along the outer periphery of the substrate 21, and is provided on the inner side surface (suction side surface) side of the substrate 21. A vacuum pump and a vacuum built in a pad 22 made of a flexible elastic body that defines a suction area and a box-shaped case 23 installed on the outer surface of the substrate 21 (the surface opposite to the surface on the suction side). An electric motor that drives a pump, a battery that is a power source for the electric motor, a button-type switch 24 (see FIG. 4) that is arranged on the outer surface of the case 23 and turns on / off the connection between the battery and the electric motor, and inside the suction area. It is provided with a button-type vacuum break valve 25 (see FIG. 4) for breaking the vacuum of the above, and is configured in a substantially hat shape as a whole.

Further, the vacuum suction pad A will be supplemented. The pad 22 has a skirt shape with a double tip, and a donut-shaped flat portion is continuously formed on the base end side, and this flat portion is brought into contact with the inner side surface of the substrate 21 on the suction area side. A disk-shaped rubber sheet is provided inside the flat portion, and a disk-shaped pressing plate made of a material having a higher rigidity than the rubber sheet, such as metal or resin, is provided on the suction area side. The flat portion of the pad 22 and the rubber sheet are sandwiched between the substrate 21 and the three parties by screws. The vacuum pump has a diaphragm, and this diaphragm is driven by an electric motor to form a vacuum. An exhaust pipe and an intake pipe that connect the inside and outside of the vacuum forming chamber inside the pump via a check valve mechanism, respectively. And have. A joint is connected to the intake pipe, and this joint is connected to a vacuum drawing hole formed by penetrating a rubber sheet through the substrate 21. In this way, when the electric motor is driven by the on operation of the switch 24, the vacuum pump sucks the air in the suction area through the vacuum drawing hole, the joint and the intake pipe, and exhausts the air from the exhaust pipe to the outside. Keep the inside of the suction area in a vacuum. A vacuum break hole is formed in the substrate 21 through the rubber sheet, and a vacuum break valve 25 is provided in the vacuum break hole. The vacuum break valve 25 includes a valve portion that opens and closes a vacuum break hole, a rod portion that stands up in the center of the valve portion, and a spring receiving portion that is provided at an end portion of the rod portion that is opposite to the valve portion. The rod portion penetrates the vacuum break hole, and a compression spring is provided on the outer surface side of the substrate 21, and the valve portion normally closes the vacuum break hole by the spring force of the compression spring. .. In this way, when the vacuum break valve 25 is closed and the inside of the suction area is vacuum, when the spring receiving portion is pushed toward the suction area side against the spring force, the valve portion separates from the vacuum break hole and the vacuum breaks. Occurs. In this vacuum suction pad A, the substrate 21 is made of an aluminum plate having a diameter of 120 [mm], a battery of 6 [V], a vacuum pump, an electric motor, etc. are provided, and the total weight is about 500 [g]. It has become. Thus, when the switch 24 is turned on while pressing the vacuum suction pad A against the wall surface P, the vacuum pump is driven, the air in the suction area is discharged, and the tip of the pad 22 is raised as the degree of vacuum in the suction area increases. It spreads like a skirt toward the outside, adheres to the wall surface P, and the vacuum suction pad A is fixed to the wall surface P. Normally, the switch 24 is kept on during suction. Further, as described above, since the pad 22 is made of a flexible elastic body, it is more flexible than the case where it is made of a normal rubber member, and the pad 22 is also used for unevenness of mortar and joints of tiles. The tip penetrates and adheres, and high sealing performance is sufficiently maintained. Furthermore, by making the tip double, the flexibility of the tip side is enhanced while ensuring the strength of the waist on the base end side, and high sealing performance is exhibited. Further, when moving the fixed position of the vacuum suction pad A, the switch 24 is turned off, the valve is opened by the vacuum break valve 25, and the vacuum in the suction area is broken, so that the pad 22 can be easily moved from the wall surface P. It can be removed and the vacuum suction pad A can be moved quickly.

A plurality of such vacuum suction pads A are attached to each Y-direction rail R1 as shown in FIG. In this case, a pair of Y-direction rails R1 can be supported at the laying position of the wall surface P together with the X-direction guide rail R2, the traveling device D, and the water jet J, and the number of electric motors required for the mounting surface of each Y-direction rail R1 is electric. Attach the vacuum suction pad A. Here, a total of two electric vacuum suction pads A are attached to both ends of the lower flange F1 of each Y-direction rail R1. Further, in this case, even if each vacuum suction pad A attached to each Y direction rail R1 is fixed to the uneven portion of the wall surface P (for example, in an oblique state), each Y direction rail R1 is omitted with respect to the entire wall surface P. It is desirable to mount each vacuum suction pad A on the mounting surface of each Y-direction rail R1 so that the vacuum suction pads A can be laid in parallel so that the mounting angle of each vacuum suction pad A can be adjusted arbitrarily. Therefore, as shown in FIG. 4, a mounting plate 26 is provided on the substrate 21 of each vacuum suction pad A in parallel with the substrate 21, and a plurality of mounting bolts 27 are erected at right angles on the mounting plate 26 to form a Y-direction rail. A plurality of bolt insertion holes 10 are formed in the lower flange F1 of the H-shaped steel used for R1 so as to have a diameter larger than the outer diameter of each mounting bolt 27, and are formed on the mounting plate 26 of each vacuum suction pad A in each Y direction. While mounting the rail R1 from the mounting surface side, pass each mounting bolt 27 of the mounting plate 26 through each bolt insertion hole 10 of each Y direction rail R2, and change the insertion direction of each mounting bolt 27 in each bolt insertion hole 10. Adjust the angle between the mounting surface of the Y-direction rail R1 and the mounting plate 26 of the vacuum suction pad A, and at the adjusted angle position, position each mounting bolt 27 above and below each bolt insertion hole 10 of the lower flange F1. By fastening the nuts 11 together, the Y-direction rails R1 and the vacuum suction pads A are fixed. In this case, the mounting plate 26 is a square plate whose vertical and horizontal dimensions are larger than the width of the Y-direction rail R1, and the mounting plate 26 is bounded by the center of the horizontal direction (the same direction as the X direction). A total of four bolt mounting holes 270 are drilled at predetermined positions so as to correspond to the positions of the bolt insertion holes 10 provided on the Y-direction rail R1 side on both sides, and all four bolt mounting holes 270 are bored. Four mounting bolts are fixed to the mounting plate 26 by tightening nuts 271 at the upper and lower positions of each bolt mounting hole 270 to each mounting bolt 27 passed through each bolt mounting hole 270 through the screw mounting bolt 27. 27 is raised and mounted at a right angle (with respect to the mounting plate 26), and a plurality of support legs 29 are erected around the case 23 on the substrate 21 of the vacuum suction pad A, and these support legs 29 are erected. It is supported and fixed via the above, and is arranged in parallel with the substrate 21 directly above the case 23 on the substrate 21. Two vacuum suction pads A provided with such a mounting plate 26 are mounted on both ends of the lower flange F1 of each Y-direction rail R1. Each Y-direction rail R1 corresponds to the position of each mounting bolt 27 on the mounting plate 26 side of each vacuum suction pad A at each part of the lower flange F1 projecting on both sides of the web at both ends of the lower flange F1. As described above, bolt insertion holes 10 having a diameter larger than the outer diameter of each mounting bolt 27 by a predetermined dimension are drilled at two locations each at a total of four locations (eight locations in total at both ends). In this way, while mounting each Y-direction rail R1 on the mounting plate 26 of each vacuum suction pad A from the mounting surface side, the four mounting bolts 27 of the mounting plate 26 are inserted into the four bolt insertion holes of each Y-direction rail R1. While changing the insertion direction of each mounting bolt 27 in each bolt insertion hole 10, while adjusting the mounting angle of the mounting plate 26 of each vacuum suction pad A with respect to the mounting surface of each Y direction rail R1. , The nuts 11 are tightened to the mounting bolts 27 passed through the bolt insertion holes 10 at the upper and lower positions of the bolt insertion holes 10 of the lower flange F1, and the vacuum suction pad A is fixed to the mounting surface of the Y-direction rail R1. In this way, one vacuum suction pad A is attached to both ends of the mounting surface of each Y-direction rail R1 so that the mounting angle of each vacuum suction pad A can be adjusted. The vacuum suction pad A may be attached to the Y-direction rail R1 and the attachment angle may be adjusted at the construction site, but it is desirable to perform the attachment in advance before carrying the equipment to the construction site. ..

As shown in FIG. 3, the X-direction guide rail R2 uses a steel material such as a square steel pipe having a predetermined length that can be arranged as a rail member between the Y-direction rails R1.

As shown in FIG. 3, the traveling device D is provided at both ends of the X-direction guide rail R2, and slides by sandwiching the upper flange F2 of the H-shaped steel between the pair of Y-direction rails R1 with a plurality of guide rollers 30 from both sides. A pair of posably attached Y-direction sliders 3, a pair of sprockets 31 rotatably supported by each Y-direction slider 3 in the Y direction and connected via an operating connecting shaft (not shown), and one Y-direction slider 3. An electric or hydraulic motor 32 that is installed and actuated and connected to one sprocket 31, a pair of chains 33 that are arranged along each Y-direction rail R1 and meshed with each sprocket 31 of each Y-direction slider 3. The X-direction guide rail R2 is rotatably supported in the X-direction by the X-direction slider 4 and the X-direction slider 4 which are slidably engaged with the X-direction guide rail R2 sandwiched by a plurality of guide rollers 40 (see FIG. 1) from both side surfaces. 1 installed on the sprocket 41, the X-direction slider 4, arranged along the electric or hydraulic motor 42 operated and connected to the sprocket 41, and the X-direction guide rail R2, and meshed with the sprocket 41 of the X-direction slider 4. It is connected to the water jets J mounted on the motors 32, 42 and the X-direction slider 4 of the book chain 43, the Y-direction slider 3 and the X-direction slider 4 via separate cables 51 and 52 (see FIG. 1). The control box 5 (see FIG. 1), the generator 6 (see FIG. 1), and the like, and the X-direction slider 4 is normally assembled to the X-direction guide rail R2 (on the X-direction guide rail R2) so as to be reciprocating. Be done.

The water jet J is composed of a nozzle 71 for ejecting ultra-high pressure water, a gantry 72 for supporting the nozzle 71, and the like. Normally, the gantry 72 is connected to the X-direction slider 4, and the nozzle 71 is mounted on the X-direction slider 4. Will be done. A water jet pump 74 (see FIG. 1) installed at the construction site is connected to the nozzle 71 via an ultra-high pressure hose 73 (see FIG. 1).

Next, the chipping method will be described. In this chipping method, as shown in FIGS. 3 (1) and 3 (2), as a preparation before starting the chipping work, which is the original construction by the water jet J, first, the wall surface P is adjusted to the construction range of the wall surface P. The laying position of the pair of Y-direction rails R1 is marked out, and each Y-direction rail R1 is installed at the laying position of each Y-direction rail R1 on the wall surface P via a plurality of vacuum suction pads A. In the case of this hanging method, since the hanging work is sequentially carried out from one end side to the long wall surface P in the lateral direction (X direction), the wall surface P is divided into a plurality of work ranges from one end side to the other end side, and each of them is divided into a plurality of work ranges. Laying position of each Y-direction rail R1 toward the Y direction (vertical direction of the wall surface P) at predetermined positions on both the left and right sides for each work range (a pair of Y-direction rails R1 can be arranged at predetermined intervals from each other). Two Y-direction rails R1 are arranged along the two Y-direction rails R1 via the respective vacuum suction pads A, and by one-touch operation of the switch 24 of each vacuum suction pad A, that is, by the on operation of the switch 24. , The vacuum pump in the case 23 is driven to discharge the air in the suction area, the pad 22 is closely fixed to the wall surface P, and each Y-direction rail R1 is detachably laid on the wall surface P.

When it is necessary to fix each vacuum suction pad A attached to each Y-direction rail R1 to the uneven portion of the wall surface P (for example, in an oblique state), as shown in FIG. 4, each vacuum suction pad A is attached. When mounting the Y-direction rail R1 or even after mounting each vacuum suction pad A on each Y-direction rail R1, the Y-direction rail R1 is mounted on the mounting plate 26 of the vacuum suction pad A from the mounting surface side. From the state where each mounting bolt 27 of the plate 26 is passed through each bolt insertion hole 10 of the Y direction rail R1, while changing the insertion direction of each mounting bolt 27 in each bolt insertion hole 10, the mounting surface of the Y direction rail R1 Adjust the angle between the vacuum suction pad A and the mounting plate 26 (so that the Y-direction rail R1 is substantially parallel to the wall surface P), and at the adjusted angle position, attach the lower flange F1 to each mounting bolt 27. By tightening the nuts 11 at the upper and lower positions of the above, each Y-direction rail R1 and each vacuum suction pad A are fixed, so that each Y-direction rail A is laid substantially parallel to the entire wall surface P.

Next, as shown in FIG. 3, an X-direction guide rail R2 in which the traveling device D and the water jet J are mounted on the pair of Y-direction rails R1 is assembled. In this assembly, an X-direction guide rail R2 incorporating an X-direction slider 4 is bridged between the Y-direction rails R1, and each Y-direction rail is provided by the guide rollers 30 of the X-direction sliders 4 at both ends of the X-direction guide rail R2. R1 is sandwiched and the X-direction guide rail R2 is mounted on the pair of Y-direction rails R1 so as to travel. As a result, the water jet J (nozzle 71) mounted on the X-direction guide rail R2 is directed toward the wall surface P. Then, as shown in FIG. 1, the generator 6, the control box (control device) 5, the motors 32 and 42 of the Y-direction sliders 3 and the X-direction sliders 4 and the water jets are carried and installed near the wall surface P. An ultra-high pressure hose 73 is used to connect the water jet pump 74 and the water jet J (nozzle 71), which are connected to J via separate cables 51 and 52, mounted on a loading platform such as a truck, and carried in and installed near the construction site. Connect via. As a result, the preparation before the original fishing work is completed.

Then, the fishing work is started. Referring to FIGS. 1 and 3 (3), first, by operating the operation switch of the control box 5, the motors 32 of the pair of Y-direction sliders 3 are rotated at a predetermined rotation speed on the pair of Y-direction rails R1 on the wall surface P. The sprocket 31 of each Y-direction slider 3 is moved on the chain 33 arranged along each Y-direction rail R1, and each Y-direction slider 3 is driven in the Y direction on the pair of Y-direction rails R1. Then, by moving the X-direction guide rail R2 to a position close to the fishing start position, the water jet J (nozzle 71) is self-propelled to the fishing start position. Following this, by operating the operation switch of the control box 5, the motor 42 of the X-direction slider 4 is driven on the X-direction guide rail R2 at a predetermined rotation speed, and the chain is arranged along the X-direction guide rail R2. By moving on 43 and moving the X-direction slider 4 in the X-direction on the X-direction guide rail R2, the water jet J (nozzle 71) is self-propelled to the fishing start point.

From the fishing start point, the water jet pump 74 is driven, ultra-high pressure water is supplied from the water jet pump 74, the ball is sent to the nozzle 71 via the ultra-high pressure hose 73, and the ultra-high pressure water is ejected from the nozzle 71. At the same time, the control box 5 is operated, and the control of the control box 5 drives the motor 42 of the X-direction slider 4 at a predetermined rotation speed on the X-direction guide rail R2 to drive the sprocket 41 of the X-direction slider 4 to X. By moving on the chain 43 arranged along the direction guide rail R2 and running the X direction slider 4 in the X direction on the X direction guide rail R2, the water jet J (nozzle 71) is self-propelled in the X direction. Then, the wall surface P is struck along the X-direction guide rail R2 by the ultra-high pressure water ejected from the nozzle 71. In this way, when the wall surface P is finished at the fishing start position, the motors 32 of the pair of Y-direction sliders 3 are driven at a predetermined rotation speed on the pair of Y-direction rails R1 on the wall surface P. The sprocket 31 of the Y-direction slider 3 is moved on the chain 33 arranged along each Y-direction rail R1, and each Y-direction slider 3 is run on the pair of Y-direction rails R by a predetermined pitch in the Y direction. By moving the X-direction guide rail R2 to a position close to the next fishing position, the water jet J (nozzle 71) is self-propelled to the next fishing position, and the X-direction slider 4 is mounted on the X-direction guide rail R2. The motor 42 of the above is driven at a predetermined rotational speed to move the sprocket 41 of the X-direction slider 4 on the chain 43 arranged along the X-direction guide rail R2, and the X-direction slider 4 is moved on the X-direction guide rail R2. By traveling in the X direction, the water jet J (nozzle 71) is self-propelled, and the ultra-high pressure water ejected from the nozzle 71 follows the wall surface P along the X direction guide rail R2. In this way, the water jet P (nozzle 71) is repeatedly self-propelled in the XY directions on the entire wall surface P between the pair of Y-direction rails R1 or a necessary part of the fishing, and the fishing work is performed. Then, when the fishing work is completed in the work range on one end side of the horizontally long wall surface P, each Y direction rail R1 is removed from this work range together with the traveling device D and the X direction guide rail R2 equipped with the water jet J. , These devices and equipment will be installed in the next work area adjacent to the work area where the fishing work has been completed. In this case, when the switch 24 of each vacuum suction pad A of each Y direction rail R1 is turned off and the valve is opened by the vacuum break valve 25, the vacuum in the suction area is broken and the pad 22 is easily removed from the wall surface P. It is possible to quickly remove and move each Y-direction rail R1 from the work range where the lifting work of the wall surface P has been completed. After the removal of each Y-direction rail R1, these Y-direction rails R1 are arranged in the next working range in the same manner via the respective vacuum suction pads A of each Y-direction rail R1, and the switches of the respective vacuum suction pads A are arranged. By one-touch operation of 24, that is, by turning on the switch 24, the vacuum pump in the case 23 is driven to discharge the air in the suction area, the pad 22 is closely fixed to the wall surface P, and each Y-direction rail is fixed. R is laid detachably on the wall surface P. Then, in the same manner, the fishing work is carried out. This is sequentially repeated from the work range on one end side of the wall surface P to the work range on the other end side.

As described above, according to this chipping method, a pair of Y-direction rails R1 can be supported at the laying position together with the X-direction guide rail R2, the traveling device D, and the water jet J, at both ends of the mounting surface of each Y-direction rail R1. Two electric vacuum suction pads A are attached, and each Y-direction rail R1 is detachably laid via each vacuum suction pad A by one-touch operation of the switch 24 of each vacuum suction pad A, as in the conventional case. It can be installed reliably, easily, and quickly without using a proper anchor bolt or box-shaped suction support device, and the original fishing work using the water jet J on the wall surface P of the concrete structure should be carried out smoothly. Can be done.

Further, in this flange method, a mounting plate 26 is provided on the substrate 21 of each vacuum suction pad A in parallel with the substrate 21, and a plurality of mounting bolts 27 are erected on the mounting plate 26 at right angles to the Y-direction rail R1. A plurality of bolt insertion holes 10 are bored in the lower flange F1 of the H-shaped steel used so as to have a diameter larger than the outer diameter of each mounting bolt 27, and the Y-direction rail R1 is placed on the mounting plate 26 of each vacuum suction pad A. While mounting from the mounting surface side, each mounting bolt 27 of the mounting plate 26 is passed through each bolt insertion hole 10 of each Y direction rail R1, and while changing the insertion direction of each mounting bolt 27 in each bolt insertion hole 10, the Y direction rail By adjusting the angle between the mounting surface of R1 and the mounting plate 26 of the vacuum suction pad A, and fastening the nut 11 to each mounting bolt 27 at the upper and lower positions of the lower flange F1 at the adjusted angle position, Since each Y-direction rail R1 and each vacuum suction pad A are fixed, when each vacuum suction pad A attached to each Y-direction rail R1 is fixed to the uneven portion of the wall surface P (for example, in an oblique state). Even so, each Y-direction rail R1 is laid substantially parallel to the entire wall surface P by adjusting the angle between the mounting surface of each Y-direction rail R1 and the mounting plate 26 of each vacuum suction pad A. be able to.

In this embodiment, a pair of Y-direction rails R1 can be attached and detached on both sides of the wall surface P of the concrete structure to be constructed by the water jet J in the X direction via a plurality of electric vacuum suction pads A. The X-direction guide rail R2 is attached between the pair of Y-direction rails R1 so as to travel in the Y-direction via the pair of Y-direction sliders 3 and the drive device, and the X-direction slider 4 and the X-direction guide rail R2 are attached to the X-direction guide rail R2. A water jet J is attached so as to be able to travel in the X direction via a drive device, and while the water jet J is self-propelled in the XY directions on the wall surface P, ultra-high pressure water is injected from the water jet J to the wall surface P. Although it was decided to carry out the lifting work, a pair of X-direction rails were laid detachably on both sides of the wall surface of the concrete structure in the Y direction via a plurality of electric vacuum suction pads, and a pair of X-direction rails were laid. A Y-direction guide rail is attached between them so that it can travel in the X direction via a pair of X-direction sliders and a drive device, and a water jet can travel in the Y direction via the Y-direction slider and drive device on this Y-direction guide rail. It may be attached so that the water jet is self-propelled in the XY directions on the wall surface and ultra-high pressure water is jetted from the water jet to perform suspension work on the wall surface.
Even in this way, the same action and effect as those of the above-described embodiment can be obtained.

Further, as a form different from each of the above-described embodiments, a rail for running a water jet is configured by one rail, and a plurality of electric vacuum suction pads are attached to a plurality of predetermined locations on the mounting surface of the rail. A rail may be laid along the X or Y direction of the construction surface via each vacuum suction pad, and the water jet may be self-propelled on the rail in the X or Y direction of the construction surface by a traveling device. ..
In this case, X-direction or Y-direction rails are laid detachably in the X-direction or Y-direction of the wall surface of the concrete structure to be constructed by a water jet via a plurality of electric vacuum suction pads, and the X-direction is laid. The water jet is mounted directly on the rail in the direction or Y direction so as to travel in the X or Y direction of the wall surface by the traveling device, and the water jet is self-propelled in the X direction or Y direction on the wall surface on the rail in the X direction or Y direction. However, by injecting ultra-high pressure water from a water jet, various constructions such as hanging, cutting, cutting, and cleaning can be performed on the wall surface.
Even in this way, the same action and effect as those of the above-described embodiment can be obtained.

Further, as a form different from each of the above-described embodiments, the rail for running the water jet is composed of a pair of rails and a water jet mounting base spanned between the pair of rails, and a predetermined mounting surface of the pair of rails is formed. A plurality of electric vacuum suction pads are attached to a plurality of locations, each rail is laid along the X direction or the Y direction of the construction surface via each vacuum suction pad, and a water jet mounting stand is mounted on each rail. In addition to mounting the water jet so that it can run on its own, the water jet is fixedly mounted on the water jet mount and the water jet is run on each rail in the X or Y direction of the construction surface via the water jet mount. May be.
In this case, a pair of Y-direction or X-direction rails are laid detachably on both sides of the wall surface of the concrete structure to be constructed by a water jet via a plurality of electric vacuum suction pads. , A water jet mount is mounted between a pair of Y-direction or X-direction rails so as to travel in the Y-direction or X-direction via a pair of Y-direction or X-direction sliders and a drive device, and the water jet is mounted on the water jet mount. It can be fixed and the water jet can be self-propelled in the Y or X direction on the wall surface to inject ultra-high pressure water from the water jet, and various operations such as hanging, cutting, cutting, and cleaning can be performed on the wall surface. ..
Even in this way, the same action and effect as those of the above-described embodiment can be obtained.

Each of the above embodiments can be similarly applied not only to the wall surface of the concrete structure but also to the top surface, and can be similarly applied to the wall surface and the top surface of the steel structure.

As described above, according to the construction method of the concrete structure or the like using the water jet, the rail can be supported at the laying position of the rail together with the water jet and the traveling device, and at a predetermined plurality of places on the mounting surface of the rail. , Multiple electric vacuum suction pads are attached, and rails are laid via each vacuum suction pad so that they can be attached and detached by one-touch operation of the switch of each vacuum suction pad, so the anchor bolts and boxes as in the past It can be installed reliably, easily, and quickly without using a mold suction support device, and the original construction using a water jet on the construction surface can be smoothly carried out.

Further, according to this method, the vacuum suction pad is mounted on the rail mounting surface so that the mounting angle of the vacuum suction pad can be adjusted, so that the vacuum suction pad mounted on the rail is attached to the uneven portion of the wall surface (for example, diagonally). Even in the case of fixing (in the state of), the rail can be laid substantially parallel to the entire wall surface by adjusting the mounting angle between the mounting surface of the rail and the vacuum suction pad.

Construction surface of P concrete structure (wall surface (vertical surface))
R1 Y direction rail F1 Lower flange F2 Upper flange 10 Bolt insertion hole 11 Nut A Electric vacuum suction pad 21 Board 22 Pad 23 Case 24 Switch 25 Vacuum break valve 26 Mounting plate 27 Mounting bolt 270 Bolt mounting hole 271 Nut 29 Support leg R2 X-direction guide rail D Traveling device 3 Y-direction slider 30 Guide roller 31 Sprocket 32 Motor 33 Chain 4 X-direction slider 41 Sprocket 42 Motor 43 Chain 5 Control box 51, 52 Cable 6 Generator J Water jet 71 Nozzle 72 Stand 73 Super High pressure hose 74 water jet pump

Claims (6)

A rail for running a water jet is laid along the construction surface of a concrete structure or a steel structure, the water jet is mounted on the rail so as to be self-propelled by a traveling device, and the water jet is self-propelled on the rail. In the construction method of a concrete structure or the like using a water jet, the construction is carried out by injecting ultra-high pressure water from the water jet toward the construction surface.
The rail can be supported together with the water jet and the traveling device at the laying position of the rail, on the substrate, a substrate provided at a predetermined plurality of positions on the mounting surface of the rail, and pads provided around the substrate, and on the substrate. A plurality of arranged vacuum pumps having a vacuum pump for discharging air in a suction area surrounded by the pad, a battery for supplying power to the vacuum pump, and a switch for turning on / off the vacuum pump. An electric vacuum suction pad is attached, and the rail is laid detachably via the vacuum suction pads by one-touch operation of the switch of each vacuum suction pad.
A method of constructing a concrete structure, etc. using a water jet. The method for constructing a concrete structure or the like using a water jet according to claim 1, wherein the vacuum suction pad is attached to the mounting surface of the rail so that the mounting angle of the vacuum suction pad can be adjusted. A mounting plate is provided on the substrate of the vacuum suction pad in parallel with the substrate, mounting bolts are erected at right angles to the mounting plate, H-shaped steel is used for the rail, and bolt insertion holes are inserted in the lower flange of the H-shaped steel. Is bored with a diameter larger than the outer diameter of the mounting bolt, and the mounting bolt of the mounting plate is inserted into the bolt of the rail while mounting the rail on the mounting plate of the vacuum suction pad from the mounting surface side. While passing through the hole and changing the insertion direction of the mounting bolt in the bolt insertion hole, the angle between the mounting surface of the rail and the mounting plate of the vacuum suction pad is adjusted, and at the adjusted angle position, The concrete structure using the water jet according to claim 2, wherein the rail and the vacuum suction pad are fixed by fastening nuts to the mounting bolts at positions above and below the bolt insertion holes of the lower flange of the rail. Construction method of things, etc. A rail for running a water jet is composed of one rail, and a plurality of electric vacuum suction pads are attached to predetermined locations on the mounting surface of the rail, and the rail is mounted along the X direction or the Y direction of the construction surface. The water jet according to any one of claims 1 to 3, which is laid through each of the vacuum suction pads and causes the water jet to self-propell in the X direction or the Y direction of the construction surface by the traveling device directly on the rail. Construction method of the used concrete structure, etc. A rail for running a water jet is composed of a pair of rails and a water jet mounting stand that is hung between the pair of rails, and a plurality of electric vacuum suction pads are provided at a plurality of predetermined positions on the mounting surface of the pair of rails. After mounting, the rails are laid along the X or Y direction of the construction surface via the vacuum suction pads, and the water jet mounting base is mounted on the rails so as to be self-propelled by a traveling device. Claims 1 to 3 in which a water jet is fixedly attached to the water jet mounting base, and the water jet is self-propelled on each of the rails in the X direction or the Y direction of the construction surface via the water jet mounting base. Construction method for concrete structures, etc. using the water jet described in any of the above. The rail for running the water jet is composed of a pair of rails and a guide rail that is hung between the pair of rails, and a plurality of electric vacuum suction pads are attached to a plurality of predetermined positions on the mounting surface of the pair of rails. , The rails are laid along the X direction or the Y direction of the construction surface via the vacuum suction pads, and the guide rails are mounted on the rails so as to be self-propelled by a traveling device and attached to the guide rails. The water jet is self-propelled by a traveling device, and the water jet is self-propelled on each rail via the guide rail in the X direction or the Y direction of the construction surface, and the construction is performed on the guide rail. The method for constructing a concrete structure or the like using a water jet according to any one of claims 1 to 3, wherein the surface is self-propelled in the Y direction or the X direction.

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