JPH01250599A - Reinforcement automatic assembly, mounting and device - Google Patents

Abstract

PURPOSE:To make it possible to automatically assemble reinforcements and to mount them automatically by mounting reinforcing steel units on the wall surface of a tunnel successively by a positioning mounting device and coupling them as a unit after assembling the reinforcing steel units from reinforcements automatically by arrangement devices. CONSTITUTION:Main reinforcements and distribution bar arrangement devices 9, 10 and 11 are provided on traveling rails 7 inside of a tunnel after completion of a primary lining 1 so that they are capable of running freely. A required length of reinforcements to which a bend machining is applied according to the curvature of the tunnel in advance are transferred to each of arrangement devices 9-11, and reinforcing steel units are automatically assembled from those reinforcements by each of arrangement devices 9-11. The reinforcing steel units are successively mounted on the wall surface of the tunnel by a positioning device 14 to couple them as a unit.

Description

[Detailed Description of the Invention] [Industrial Application Field 1] The present invention provides a method and method for automatically and continuously assembling reinforcing bars in a tunnel after the completion of primary lining and installing the assembled reinforcing bars. This is related to equipment.

[Prior Art] In the conventional reinforcing bar assembly and installation work during secondary tunnel lining, workers carry brought in reinforcing bars one by one to the installation position.

[Problem to be solved by the invention] This kind of work that is done manually takes time,
In addition, the work area in the Inudokomen tunnel is at a high place,
As the diameter of reinforcing bars increases, some kind of solution is required from the standpoint of safety and efficiency.

This invention was developed in view of the above circumstances, and
The purpose is to develop a new method and device for automatically assembling reinforcing bars that can automatically assemble processed reinforcing bars brought into a tunnel into the required reinforcing bar units using a device, and then automatically attach the reinforcing bar units to predetermined positions. Our goal is to provide the following.

[Means for Solving the Problems] One of the inventions according to the above-mentioned object is to install the main reinforcement and the distribution reinforcement reinforcement arrangement device on the moving rail so that they can run freely inside the tunnel after the primary lining is completed, and to install the main reinforcement and the distribution reinforcement arrangement device in advance in the tunnel. Reinforcement bars of the required length that have been curved according to the curvature are transported to each reinforcement arrangement device, and after these reinforcement bars are automatically assembled into a reinforcing bar unit by each reinforcement arrangement device, the positioning and mounting device provided in each reinforcement arrangement device is installed. According to
The method is to attach each reinforcing bar unit to the tunnel wall one after another, starting with the reinforcing bar unit at the bottom of the tunnel, and quickly connect them together.

Another aspect of the present invention is an automatic reinforcing bar assembly/installation device that can be used in the above method, which includes a running truck for a moving rail installed inside a tunnel after completion of primary lining;
A reinforcement bed for distribution bars or main reinforcements provided on the top of the traveling platform together with a stock space, a positioning and mounting device installed on one side of the reinforcement bed, and a control installed on the other side of the reinforcement bed. It consists of a chamber, a power room, a material lifting device, and a reinforcing bar tying machine, and the positioning and mounting device includes a support body placed on the traveling truck, and a pinion installed in an arch-shaped guide groove provided inside the support body. and a moving device for moving the rack and the rack.
A bendable arm with a multilayer structure is rotatably attached to the side of the movable member that moves along the guide groove, and a reinforcing bar unit is rotatably supported on the arm and has a reinforcing bar unit at both ends.
It consists of a main reinforcement and distribution reinforcement reinforcement arrangement device made up of a plurality of devices of the same structure, each consisting of a mounting plate with a vertically movable holder.

Further, according to the present invention, the reinforcement at the lower part of the tunnel can be arranged in advance by the lower main reinforcement and the lower distribution reinforcement reinforcement arrangement device, which are composed of two devices having the same structure. The two devices each have a rectangular frame that runs on rails laid on the bottom of the tunnel,
A positioning and mounting device includes a rotating mechanism consisting of a pinion and a rack that are movably suspended horizontally within the frame, and a support member that is attached to the movable member of the rotating mechanism so as to be able to move vertically. A device consisting of a stock space and a reinforcement bed of lower distribution reinforcements or lower main reinforcements installed off-centered [Function 1] The above device has main reinforcements of the required length that are curved to match the curvature of the tunnel, When the reinforcing bars are conveyed into the tunnel by endless wheel handling, the reinforcing bars are received by each type of reinforcing bar arrangement device and stocked in the stock space.

Each reinforcing device takes out reinforcing bars from the stock space,
After arranging the reinforcing bars at a specified pitch on the reinforcement bed, they are mechanically tied together to assemble the reinforcing bar unit, and then the reinforcing bar unit is installed inside the primary lining of the tunnel toward the face side using a positioning and mounting device. go.

[Example 1] As shown in Fig. 1, lower reinforcing bars 2 in which distribution bars 2C are arranged for each of the outer main reinforcements 2a and the inner main reinforcements 2b are installed in the lower part of the tunnel to which the -method lining 1 has been applied. 1, and after constructing the invert part 3, as shown in Fig. 2, concrete is poured to the lower end of the floor slab 4, and the lower secondary lining 5 is completed first. .

The above-mentioned floor slab 4 is constructed by installing the PC floor slab brought in after the completion of the lower secondary lining 5 over the end of the lower secondary lining 5 and the PC inner wall 6 provided on the invert part 3, and A prestress force is applied to each plate piece, and the PC inner wall and PC floor plate are tightly connected in the shield axis direction.

As shown in Figures 3 and below, a moving rail 7 is laid on the floor slab 4, and the main reinforcing bars and the distribution bar arrangement device 8 move on the rail in the direction of the face! 71.

The above-mentioned main reinforcement and distribution reinforcement reinforcement arrangement device 8 includes an outer main reinforcement reinforcement arrangement device 9,
It consists of three devices with the same structure, arranged in this order: a distribution reinforcement reinforcement arrangement device 10 and an inner main reinforcement reinforcement arrangement device 11.

These devices include a cart 12 that runs on rails, a reinforcement bed 13 provided in the center of the cart, a positioning and mounting device 14 installed on the side of the reinforcement bed 13, and a fourth
As shown in the figure, it is comprised of a control room 15 and a power room 16 installed on the other side of the reinforcement bed 13, a material S type device 17, and a reinforcing bar binding machine 18.

The positioning and mounting device 14 has six gate-shaped supports 19 provided at one end of the traveling carriage 12, an arch-shaped guide groove 20 provided inside the support, and a guide groove 20 in the guide groove (not shown). A moving device consisting of a movable member 21 which houses a binion engaged with a rack and its motive power and which moves along a guide groove 20, and an arm 22 with a multi-folding structure rotatably connected to the movable member 21. and a mounting plate 24 which is rotatably supported on the tip of the arm and has reinforcing bar unit holders 23 at both ends thereof so as to be movable up and down.

The surface of the reinforcement bed 13 is formed into a convex curved surface having the same curvature as the tunnel, and the reinforcing bar binding machine 18 is movably disposed on the side thereof. Further, the material lifting device 17 is located in a stock space provided together with the reinforcement bed 13.

Reference numeral 25 denotes an unmanned transport vehicle installed on one side of the floor slab 4, which is installed on the induction cable 26 and detects the signal of a signal generator (not shown) installed on each reinforcing device side. The reinforcing bars 27 are transported to a reinforcement arrangement device that requires them.

Next, the assembly and installation of reinforcing bars will be explained.

First, the required length of reinforcing bars 27, which have been curved in advance to match the curvature of the tunnel at a rebar processing factory or the like, are transported from the outside and stocked in the stock space of each reinforcement arrangement device.

Each reinforcing bar is assembled on each reinforcing bed, but before that, each reinforcing device operates its respective positioning and mounting device 14 to lower the mounting plate 24 to the reinforcing bed 13. Unit holders 23 are placed on both sides of the reinforcement bed.

Next, the iron B27 serving as distribution bars and main bars are taken out one by one and arranged on each reinforcement bed 13 at a predetermined pitch. In addition, pitch adjustment is possible using a chain conveyor (
(Figure omitted). After the reinforcement is placed, each reinforcement device places an auxiliary plate for binding the reinforcing bars under the placed reinforcing bars 27.
It is inserted by the reinforcing bar binding machine 27.

5 and 7 show a state in which the reinforcing bars 27 and 27 on the bed are unitized by an auxiliary plate 28 and a reinforcing bar fixing jig 29. A fitting hole 30 is drilled for each reinforcing bar arrangement, and the U-shaped reinforcing bar fixing jig 29 made of metal or reinforced resin is fitted into the fitting hole 30 from above the reinforcing bar 27. Each reinforcing bar is fixed to a plate and assembled into a blind-shaped reinforcing bar unit, that is, a distribution bar unit 31 and a main bar unit 32, respectively.

These reinforcing bar units are attached to the reinforcing bar unit holder 23.
is maintained. A gripper 33 made of reinforced resin or the like is attached to the surface of the holder along the reinforcement direction. As shown in FIG. 8, this gripper 33 consists of a spring plate 33a formed in an arc shape, and a pair of holding arms 33b whose inner ends are connected by a hinge and whose outer ends abut against each other so as to be openable and closable. The holding arm 1144b is integrally connected to both ends of the spring plate 33a by hinges RΩ, and when the reinforcing bar is pushed into the open holding arm, it closes due to spring pressure, and when the reinforcing bar is pulled outward after opening, the reinforcing bar closes. The gripper 33 opens against the spring pressure due to the tensile force, and therefore, due to the weight a on the reinforcing bar unit, the gripper 33 automatically closes and holds the reinforcing bar unit.

Reinforcement unit 1-31 held in the above-mentioned rebar holder 23
The main reinforcing unit 32 is carried to a predetermined position on the primary lining 1 by the running movement of each reinforcing device and various operations such as movement, rotation, bending and stretching of the members in the positioning and mounting device 14,
Installed after positioning.

9 and 10 show the positioning and mounting of the distribution reinforcement unit 31. As shown in FIG. 9, when the distribution reinforcement unit 31 is assembled on the reinforcement bed 13,
The arm 22 of the positioning and mounting device 14 moves upward, and the distribution bar unit 31 held by the reinforcing bar knit holder 23 together with the mounting plate 24 is lifted above the bed. Next, the movable member 21 moves through the arch-shaped guide groove 20 of the support body 19, and as shown in FIG.
1 to a predetermined position on the primary lining 1. As a result of this movement, the distribution reinforcement unit 31 is located at the main reinforcement unit previously attached to the inside of the primary lining 1, although it is omitted in the drawing, and is further brought into contact with the main reinforcement unit by the extension of the arm 22, and then It is installed integrally in a grid pattern.

Automatic assembly and installation of reinforcing bars 1 is performed from the main reinforcing bar unit 32. In the main reinforcement and distribution reinforcement reinforcement arrangement device 8 shown in FIG. It is installed inside 1. Next, the three devices are moved simultaneously, the distribution reinforcement reinforcement device 10 is moved to the position where the installation of the main reinforcement units is completed, and the assembled distribution reinforcement unit 31 is used as the outer distribution reinforcement unit to move the distribution reinforcement reinforcement device 10 to the main reinforcement unit 32 as the outer distribution reinforcement unit. Attach to. Furthermore, after attaching the same distribution reinforcement unit as the inner distribution reinforcement unit to the outer distribution reinforcement unit at a predetermined interval, move the entire device again and replace the inner main reinforcement reinforcement unit 11 with the distribution reinforcement unit. Move it to the location where the installation is completed. Then, the main reinforcement unit 32 assembled using the apparatus is mounted as an inner main reinforcement unit by stacking it on the inner distribution reinforcement unit. These steps are repeated in the face direction to complete the double secondary lining reinforcement 34 as shown in FIG. 11.

The reinforcing bar units are installed on both sides alternately and sequentially upward. Therefore, the ceiling reinforcement unit will be installed last. In addition, the inner and outer main reinforcement units to be installed first are connected to the ends of the outer reinforcing bars 2a and the inner reinforcing bars 2b of the lower reinforcing bars 2 placed protruding from both sides of the floor slab 4, respectively.

In this case, since the reinforcing bars are thick and self-supporting, and because they are assembled in a circular shape, there is no need to support them with other members except in special cases.

After completing the reinforcement 34, the interior of the tunnel is framed by an automatic formwork setting/concreting device 35 running on the moving rail 7, as shown in Figs. After pouring, the secondary lining 36 is completed.

14 to 16 show an embodiment in which the lower reinforcing bars 2 are assembled and attached automatically.

A rail 40 for movement is laid on the bottom of the tunnel below the floor slab 4, that is, on the inner bottom surface of the lining 1. On the face side of this rail 40, a lower reinforcement arrangement device 41 that runs on the rail in the face direction is attached to the main reinforcement reinforcement bag @ on the floor slab 4.
It is located in front of 9.

This lower reinforcement arrangement device 41 consists of two units, a lower main reinforcement reinforcement arrangement device 42 and a lower distribution reinforcement reinforcement arrangement device 43, which have the same structure. These devices have, inside a running rectangular frame 44, a positioning and mounting device 45 for a reinforcing bar unit. This positioning and mounting device 45 includes a pair of base plates 46 horizontally suspended so as to be movable in the longitudinal direction, a rotation mechanism 47 provided between the base plates so as to be movable in the lateral direction, and a movable member 48 of the rotation mechanism 47. , and a pair of lateral support members 50 which are attached to be vertically movable with a hydraulic cylinder 49.

The rotation mechanism 47 consists of an arc-shaped guide groove 51 provided to match the tunnel curvature, and a pinion on the movable member side that meshes with a rack in the guide yard, although it is omitted in the drawing. The movable member 48 is rotated on the rack by power (not shown) and moves along the bottom surface of the primary lining 1 together with the support member 50.

Further, on the lower rear side of the frame 44, a stock space 52 for lower reinforcing bars 55 and a reinforcement bed 53 are provided on one side. The surface of this reinforcement bed 53 is formed into a concave curved surface having the same curvature as the tunnel curvature.
3, the lower main reinforcement unit 54 can be automatically assembled in the lower main reinforcement reinforcement arrangement device 42 at the front, and the lower main reinforcement unit (not shown) can be automatically assembled in the lower main reinforcement reinforcement arrangement device 43 at the rear. It is now possible to do so.

The lower main reinforcement unit 54 on the reinforcement bed 53 is assembled in the same manner as the upper main reinforcement unit 32, and then held by the positioning and mounting device 45 and positioned alternately on both sides from the center of the bottom surface. It is installed inside the workpiece 1. Although not shown in the drawings, a similarly assembled lower distribution reinforcement unit 40 is attached so as to overlap the lower main reinforcement unit 54, so that the interlocking reinforcing bar unit becomes lattice-like.

The lower reinforcing bar unit is installed to the position shown in Figure 1 of the base, and parallel to this, the reinforcing bars above the floor slab 4 are arranged as described above.

In the above embodiment, the distribution reinforcement unit and the main reinforcement unit are assembled separately, but the reinforcement bed can also be configured so that it can be used in common for both the distribution reinforcement unit and the main reinforcement unit. Can be installed as a reinforcing unit. Therefore, the present invention is not limited to assembling reinforcing bars in the form of blinds and attaching them to the primary lining.

[Effect of the Invention 1] As described above, the present invention provides reinforcing bars of a required length, which are curved in advance to match the curvature of the tunnel, to each reinforcing device in which the reinforcing bars are arranged so as to be freely movable inside the tunnel after the completion of the primary lining. After transporting the reinforcing bars and automatically assembling them into reinforcing bar units using each reinforcing device, each reinforcing bar unit is sequentially attached to the tunnel wall using the positioning and mounting device provided in each reinforcing device and connected together. Therefore, it is safer because there is no need to set up scaffolding like in the past, and workers do not have to work at heights. Furthermore, since the reinforcing bars are assembled at the installation location, the previously used system can be used for transporting materials, etc., and the reinforcing bars can be assembled automatically by machine on a horizontal plane, and can be installed as a reinforcing bar unit. , it has the advantage of significantly improving work efficiency and saving labor compared to when it is done manually.

[Brief explanation of the drawing]

The drawings show an embodiment of the automatic reinforcing bar assembly and attachment method and device according to the present invention, and FIGS. 1 and 2 are explanatory diagrams of lower reinforcement arrangement, and FIG. 3 is a schematic longitudinal sectional side view showing an outline of the device. , Fig. 4 is a perspective view of the two devices, Fig. 5 is a side view showing the binding state of the distribution bars, Fig. 6 is a perspective view of the auxiliary plate and fixing jig for bundling, and Fig. 7 is the main bar. 8 is a perspective view of the clipper, FIGS. 9 and 10 are perspective views showing the installation process of the distribution reinforcement unit, and FIGS. 11 and 12 are
The figure is an explanatory diagram showing the reinforcing reinforcement and the framework state, Fig. 13 is an explanatory diagram of the secondary lining, Fig. 14 is a schematic longitudinal sectional side view showing the outline of the device of the second embodiment, and Fig. 15 is an A- A sectional view and FIG. 16 are perspective views of the lower main reinforcement reinforcement arrangement device. 1... - Next lining 4... Floor slab 7... Moving rail 8... Main reinforcement and distribution bar arrangement device 9.11...・
... Main reinforcement reinforcement arrangement device 10 ... Distribution reinforcement arrangement device 12 ... Traveling trolley 13 ... Reinforcement bed 14 ... Positioning and mounting device 17 ......Material lifting device 18...Reinforcement bar bundling I11 19...
・Support body 20... Guide groove 21...
...Movable member 22...Arm 23...Reinforcement unit holder 24...
・Mounting plate 25...Transportation platform 27...
...Reinforcement bar 28...Two auxiliary plates...Reinforcement bar fixing jig 31...Distribution bar unit 32...Main bar unit 33... ... Gripper 40 ... Lower moving rail 41 ... Lower reinforcement arrangement device 42 ... Lower main reinforcement reinforcement arrangement device 43 ... Lower distribution reinforcement Reinforcement arrangement device 44...Frame 45...Positioning and mounting device 54...Lower main reinforcement unit Patent applicant Shimizu Corporation

Claims (5)

[Claims] (1) At the bottom of the tunnel after the primary lining is completed, main reinforcement and distribution reinforcement reinforcement devices are installed on moving rails so that they can run freely, and reinforcing bars of the required length that have been curved in advance to match the curvature of the tunnel are placed in each reinforcement device. After the reinforcing bars are automatically assembled into reinforcing bar units using each reinforcing device, each reinforcing bar unit is attached to the tunnel wall in sequence, starting with the reinforcing bar unit at the bottom of the tunnel, using the positioning and mounting device of each reinforcing device. A method for automatically assembling and attaching reinforcing bars, characterized in that the reinforcing bars are integrally connected. (2) After the primary lining is completed, the lower reinforcement arrangement device is movably placed at the bottom of the tunnel toward the face side, and the floor slab is laid behind the upper part of the lower reinforcement arrangement device, and the main reinforcement and distribution reinforcement reinforcement device are installed. The reinforcing bars of the required length were installed on a moving rail so that they could run freely and were curved in advance to match the curvature of the tunnel, and were transported to each reinforcing device, and the reinforcing bars were automatically assembled into reinforcing bar units by each reinforcing device. A method for automatically assembling and attaching reinforcing bars, characterized in that each reinforcing bar unit is then sequentially attached to the tunnel wall surface starting from the reinforcing bar unit at the bottom of the tunnel and connected together using a positioning/attachment device provided in each reinforcing device. (3) Consisting of a main reinforcement and a distribution reinforcement reinforcement device of the same structure, which are movably installed on the moving rail on the floor slab inside the tunnel after completion of the primary lining, and the main reinforcement reinforcement device and the distribution reinforcement reinforcement device described above. The distribution reinforcement reinforcement arrangement device consists of a traveling trolley, a reinforcement bed for distribution reinforcement or main reinforcement installed on the traveling vehicle along with a stock space, a positioning mounting device installed on one side of the reinforcement bed, and a reinforcement reinforcement arrangement bed. It consists of a control room and a power room installed on the other side of the bed, a material lifting device and a reinforcing bar tying machine, and its positioning and mounting device is installed on a support mounted on a traveling cart and on the inside of the support. A moving mechanism having an arch-shaped guide groove, a bendable arm with a multi-layered structure rotatably attached to the side of a movable member that moves along the guide groove, and a rotatable arm attached to the arm. An automatic reinforcing bar assembly and mounting device characterized by comprising a mounting plate which is supported on a shaft and has reinforcing bar unit holders movable up and down at both ends. (4) After the completion of the primary lining, the main reinforcement and distribution reinforcement reinforcement arrangement device of the same structure are movably installed on the moving rail on the floor slab inside the tunnel, and the lower part of the tunnel on the face side under the floor slab. It consists of a lower main reinforcement and a lower distribution reinforcement reinforcement arrangement device which are movably arranged, and the lower main reinforcement and lower distribution reinforcement reinforcement arrangement device are:
A positioning and mounting device consisting of a rectangular frame that runs on rails laid on the bottom of the tunnel, a rotating mechanism movably suspended horizontally within the frame, and a support member attached to the movable member of the rotating mechanism so as to be movable up and down. An automatic reinforcing bar assembly/installation device comprising two devices of the same structure, comprising a reinforcement bed for lower distribution reinforcements or lower main reinforcements provided on one side along with a stock space in the lower part of the interior of the frame. (5) The automatic reinforcing bar assembly and attachment apparatus according to items 3 and 4, wherein the rotating mechanism and the moving mechanism are comprised of a pinion and a rack.