JPH09195690A - Removing method, removing device and removing scraping member for concrete stuck on form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a chaplet member from rupturing and positively scrap the concrete off the outside circumference of a form by causing the chaplet member fitted with a brush material on the outside circumferential side of a lengthy and flexible core material to make relative displacement with respect to the outside circumferential surface of the form. SOLUTION: A chaplet member 4 is provided with a plural number of chaplet member elements 31 connected to each other through a connecting means 32 and the respective chaplet member elements 31 are equipped with a core material 33 and a brush material 34. The core material 33, which is a metal formed in a coil, is capable of being extended to the shaft center direction and freely bent so as to bear a part of the length in the circumferential direction of the form. The brush material 34 is erectedly planted in a coil shape with certain width thickness from the outside circumference of the core material 33 by means of a groove shaped sandwiching section formed on the whole outside circumferential surface of the coil shaped core material 33. The upper part of the respective connecting means 32 is provided with a shaft bar 10 and the lower part is provided with a brush material 38. On the inside circumferential side of the chaplet member holding body, the chaplet member 4 is relatively displaced by being abutted on the outside circumferential surface of the form covering the whole circumferential direction of the chaplet member holding body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing a form-attached concrete, a device for removing a form-attached concrete, and a kelen member for removing the form-attached concrete.

[0002]

2. Description of the Related Art In a tunnel lining work, for example, a cylindrical form (centre) is fixed in the tunnel, and a concrete is placed in an annular space between the outer peripheral surface of the form and the inner surface of the tunnel. It has become. Then, when the tunnel lining work in that section is completed, the formwork is reduced in diameter and moved to the next adjacent section, where the formwork is re-expanded and the same work as above is carried out. Has become.

By the way, when the tunnel lining work in one work section is completed and the formwork is advanced to the next worksection, concrete adheres to the outer peripheral surface of the formwork, and the tunnel lining work is carried out in the next work section. It is necessary to remove the concrete on the outer peripheral surface of the formwork before the construction work. Therefore, in order to remove such concrete on the outer peripheral surface of the mold,
After moving the formwork to the next work section and before performing the tunnel lining work in the next work section, conventionally, a concrete adhering concrete removing device (so-called keren device) is used to make the concrete Tooth removal work (so-called keren work) is to be performed. As a method for removing the mold-adhesive concrete, generally, a rope as a kelen member is arranged on the outer peripheral surface of the mold endlessly in the circumferential direction, and the rope is
By sliding the mold in the circumferential direction of the mold, the concrete on the outer peripheral surface of the mold is scraped off with the rope, and when the work at the work place is finished, it is displaced in the extending direction of the mold, The above work is to be performed again at a new work location.

[0004]

However, in the above method for removing the mold adhering concrete, since the concrete on the outer peripheral surface of the mold is scraped off by the rope itself, the concrete on the outer peripheral surface of the mold is accurately removed. Not only can the concrete be scraped off, but the rope is rubbed during the work to remove the adhered concrete.
Is easy to tear.

The present invention has been made in view of the above circumstances. A first object of the present invention is that the concrete on the outer peripheral surface of the mold can be accurately scraped off and the keel member can be easily broken. It is an object of the present invention to provide a method for removing a mold adhering concrete which does not have the above. A second object is to provide a device for removing a mold adhering concrete used for carrying out the method for removing a form adhering concrete. Third
It is an object of the present invention to provide a keren member for removing a form-attached concrete used for carrying out the method for removing a form-attached concrete.

[0006]

In order to achieve the first object, the invention of claim 1 provides a keren member in which a brush material is attached to the outer peripheral side of a long flexible core material. The relative displacement of the keren member with respect to the outer peripheral surface of the mold,
The method is for removing the form-attached concrete, which is characterized in that

[0007] Further, as a preferable mode of the constitution of the above-mentioned claim 1, it is as described in claims 2 to 4.

In order to achieve the above second object, claim 5
In the invention, a kelen member to which a brush material is attached on the outer peripheral side of a long flexible core member, and the keren member in the axial direction of the mold along the outer peripheral surface of the mold. A first driving force applying means for applying a driving force for moving and a second driving force applying means for applying a driving force for generating a frictional force between the kelen member and the outer peripheral surface of the mold. It is configured as a device for removing a mold adhering concrete, characterized by including:

Further, as a preferable mode of the constitution of the above-mentioned claim 5, it is as described in claims 5-11.

[0010] To achieve the third object, a first aspect is provided.
According to the second aspect of the present invention, there is provided a long flexible core member, and a brush member attached to the outer peripheral side of the core member, the keren member for removing a mold adhering concrete. It is configured as

Further, as a preferable mode of the structure of the above-mentioned claim 11, it is as described in claims 13 to 16.

[0012]

According to the invention of claim 1, since the core material has flexibility, the kelen member has flexibility. Even a concrete pouring formwork having a cross-sectional shape can be arranged on the outer peripheral surface of the formwork along the circumferential direction of the formwork, and by using the keren member, removal of the formwork-attached concrete You will be able to work. On the other hand, since the brush material comes into contact with the outer peripheral surface of the mold and the core material itself does not directly contact the outer peripheral surface of the mold, in the work of removing the concrete adhering concrete, the brush material is The concrete adhered to the surface will be scraped off accurately, and the core material will be protected to prevent breakage of the keren member. Therefore, it is possible to provide a method for removing the mold adhering concrete in which the concrete on the outer peripheral surface of the mold can be accurately scraped off and the keren member is not easily broken.

According to the second aspect of the invention, since the core material is made of metal, the strength and durability of the core material itself can be improved and the breakage of the keren member can be prevented more reliably. You can do it.

According to the third aspect of the present invention, in order to remove the concrete on the outer peripheral surface of the mold, the outer peripheral surface of the mold is rubbed in the peripheral direction by the keren member and sequentially moved in the extending direction of the mold. Even in this case, it is possible to obtain the same effect as that of the first aspect.

According to the fourth aspect of the present invention, on the outer peripheral surface of the mold, the kelen member is rotated about the axis of the kelen member to rub the adherent concrete and extend in the extending direction of the mold. Even if it is moved, it is possible to obtain the same effect as that of the first aspect.

According to the fifth aspect of the present invention, by using the keren member to which the brush material is attached on the outer peripheral side of the long flexible core member, the kelen member is formed on the outer peripheral surface of the mold based on its flexibility. Therefore, it is possible to apply an appropriate frictional force (rubbing force) to the concrete attached to the mold based on the brush material and protect the core material. Then, the driving force for moving the kelen member is secured by the first driving force imparting means, and the driving force for imparting the frictional force is secured by the second driving force imparting means. This makes it possible to scrape off the concrete on the outer peripheral surface of the frame and prevent the skeletal member from easily breaking. As a result, it is possible to provide the apparatus for removing the mold adhering concrete used for carrying out the method for removing the mold adhering concrete according to the first aspect.

According to the invention of claim 6, the second driving force applying means rubs the outer peripheral surface of the mold so that the kelen member is displaced in the circumferential direction of the mold. An apparatus used for carrying out the invention of Item 3 can be provided.

According to the seventh aspect of the present invention, since it is sufficient to drive the endless keren member to rub the outer peripheral surface of the mold, a highly versatile rotation driving means is used as the second driving force applying means. It can be used.

According to the invention of claim 8, there is provided contact state adjusting means for adjusting the contact state of the kelen member with respect to the outer peripheral surface of the mold, and the second driving force applying means includes the kelen member and the shaft of the kelen member. Since it is set to rotate about the center of the heart, it is possible to appropriately apply an appropriate frictional force (rubbing force) to the concrete attached to the mold based on the rotation of the keren member. Therefore, it is possible to provide the device used for carrying out the invention of claim 4 described above.

According to the ninth aspect of the present invention, the contact state adjusting means presses the kelen member against the outer peripheral surface of the mold and omits the first driving force applying means. At the time of shifting to, the frictional force is applied to the adhesion concrete based on the restoring force of the brush material which is bent during the pressure contact or the force to restore the same, and the adhesion concrete is removed. On the other hand, based on the rotation of the keren member in the pressed state, the kelen member itself is rolled,
The movement will be secured. Therefore, in the work of removing the adhered concrete, the second driving force applying means can also be used as the first driving force applying means, and the number of driving means can be reduced.

According to the tenth aspect of the present invention, the first driving force applying means moves the kelen member in the extending direction of the mold, while the friction force is generated based on the slip rotation of the kelen member with respect to the outer peripheral surface of the mold. Can be applied to the concrete attached to the mold and the concrete can be removed, and the apparatus used for carrying out the invention of claim 4 can be provided.

According to the eleventh aspect of the invention, the first driving force applying means is the vibrating force applying means for generating the vibration for moving the kelen member in the extending direction of the mold.
The vibration applied by the first driving force applying means is used not only for moving the kelen member, but also for applying an effective external force to the concrete attached to the mold, Combined with the frictional force due to the slip of the keren member against the outer peripheral surface of the mold, the ability to remove the concrete adhering to the mold can be further enhanced.

According to the twelfth aspect of the invention, since the keren member includes the elongated flexible core member and the brush member attached to the outer peripheral side of the core member, the flexibility of the core member is improved. Based on the brush, it can easily follow the outer peripheral surface of the form, and based on the brush material, it can give an accurate frictional force (rubbing force) to the concrete attached to the form and protect the core. As a result, the concrete on the outer peripheral surface of the mold can be accurately scraped off, and the kelen member can be easily prevented from breaking. As a result, the mold attachment concrete according to the above-mentioned claim 1
Therefore, it is possible to provide the keren member for removing the form-attached concrete used for carrying out the method for removing the mold.

According to the thirteenth aspect of the present invention, the core material is made into a coil shape to allow the kelen member to have flexibility, and the core material is made of metal to utilize its strong strength. The durability of the keren member can be improved, and the kelen member for removing the mold adhering concrete used for carrying out the method for removing the form adhering concrete according to claim 1 or 2 is provided. You can do it.

According to the fourteenth, fifteenth and sixteenth aspects of the present invention, the same operational effect as that of the twelfth aspect can be obtained.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described. Before describing a method for removing a mold adhering concrete according to the embodiment, a form adhering concrete used for carrying out the method is explained. A device for removing a mold and a cleaning member for removing a concrete attached to a frame will be described.

In FIG. 1, reference numeral 1 denotes a concrete casting mold (centre) supported by a supporting mechanism (not shown) in the tunnel T. The mold 1 has, for example, a horseshoe-shaped cross section. It is supposed to extend in one direction. As is known, when the tunnel lining work is completed in a certain work area, the formwork 1 is reduced in diameter and moved to the next adjacent work area.

On the outer peripheral surface of the formwork 1, when the tunnel lining work in a certain work area is completed and the work is moved to the next adjacent work area, the adhesion concrete on the outer peripheral surface of the formwork 1 is transferred. As shown in FIGS. 1 and 2, a device for removing a form-attached concrete (so-called keren device) 2 for removing
Is arranged. Removal device 2 for this mold adhering concrete
Is a skeletal member holder 3, a skeletal member (a member for removing adhered substances) 4, a vibrator B as a first driving force applying means, and a motor 30 as a second driving force applying means.
Each of the elements 3, 4, B, and 30 effectively functions to exert the function (cleansing function) as the removing device 2 of the mold adhering concrete.

The keel member holder 3 is carried in from the outside of one end of the mold 1 onto the outer circumference of the one end, and is movable on the outer peripheral surface of the mold 1 in the extending direction X of the mold 1. Therefore, Figure 1
As shown in FIG. 5, it includes a pair of outer frame members 5, a plurality of pairs of connecting members 6 that couple the pair of outer frame members 5, and a plurality of wheels 7. The pair of outer frame members 5 are arranged in parallel in the extending direction X of the mold 1 at regular intervals,
In the present embodiment, both of the outer frame members 5 have a slightly horseshoe-shaped cross-section that is slightly larger than the mold 1, and
It is supposed to follow the circumferential direction of the mold 1 while being separated from the outer peripheral surface by a certain distance. The pair of connecting members 6 of the plurality of sets are arranged at a predetermined interval in the circumferential direction of the pair of outer frame members 5, and the pair of connecting members 6 of each set.
Also, a fixed interval is provided in the circumferential direction of the outer frame member 5.
As shown in FIGS. 3 and 4, the plurality of wheels 7 are rotatably supported by a pair of connecting members 6 in some of the plurality of sets via a support mechanism 8. 2, the plurality of wheels 7 are symmetrically arranged as shown in FIG. 2, and as shown in FIG. 3, are provided at both ends in the extending direction of each corresponding pair of connecting members 6. ing. As is clear from FIG. 2, the wheels 7 are arranged so that their rotation axes extend in the tangential direction of the mold 1, and the rotation directions of the wheels 7 are determined. As a result, the kelen member holder 3 can move only in the extending direction X of the mold 1 and cannot move in the circumferential direction of the mold 1.

The above-mentioned keren member 4 is shown in FIGS.
As shown in FIG. 7, on the inner peripheral side of the kelen member holding body 3, the keren member holding body 3 is disposed so as to come into contact with the outer peripheral surface of the mold 1 over the entire circumferential direction. In the present embodiment, the skeletal member 4 is the same as that shown in FIGS.
As shown in FIG. 7, a plurality of keren member elements 31 are provided (in FIG. 2, for convenience, three kelen member elements 3 are provided.
1 is shown, but the Keren member element 31 is appropriately provided),
Each of the kelen member elements 31 is to be connected via a connector 32, and each of the kelen member elements 31 is
A core material 33 and a brush material 34 are provided. Core material 33
Is formed of metal into a coil shape, and the coil-shaped core member 33 is long in the axial direction of the coil-shaped core member 33 so as to bear a part of the circumferential length of the mold 1. It has been postponed. Thereby, the core material 33 has flexibility and can be freely bent. Further, the coil-shaped core member 33 has a through-hole cross-sectional shape inside which is circular on the inner side in the axial direction,
As shown in FIG. 7, the end portion connected via the connecting tool 32 is non-circular (semi-circular in the present embodiment).

The brush material 34 is a coil-shaped core material 33.
It is attached by being sandwiched by a groove-shaped sandwiching portion (not shown) formed over the entire outer peripheral surface of the core material 33 and is planted with a constant thickness width from the outer peripheral surface of the core material 33. Thus, the brush material 34 is formed into a coil shape corresponding to the coil shape of the core material 33.

As shown in FIG. 6, the connecting member 32 includes an outer race 35 and an inner race 36 accommodated in the outer race 35.
Are rotatable relative to the outer race 35. The connecting shaft 3 is attached to the inner race 36 of the connecting tool 32.
7 are fitted so as not to rotate relative to each other, and the connecting shafts 37 thereof project outward from both sides in the axial direction of the connecting tool 32. As shown in FIG. 7, both projecting end portions of the connecting shaft 37 are formed so that the cross section of the tip end portion thereof is a semicircle as a non-circular shape. Penetration hole of core member element 31 to be formed (penetration hole of core material)
Has been pressed into. As a result, the connecting shaft 37 becomes unrotatable relative to the kelen member element 31 to be connected in the rotational direction about the shaft center of the kelen member element 31, and the axial direction of the kelen member element 31 is not allowed. In, the relative displacement is impossible. Further, as shown in FIGS. 5, 6 and 8, the shaft rod 10 is provided on the upper part of each of the connecting members 32 so as to extend outward in the radial direction of the kelen member holding body 3, respectively. A brush member 38 is provided below each connector 32.

As shown in FIGS. 5 and 8, the kelen member 4 is attached to the kelen member holder 3 via an attaching mechanism 11. The mounting mechanism 11 has a plurality of mounting portions 11a and a support cylinder 11b fixed to each mounting portion 11a. The plurality of mounting portions 11a are appropriately arranged in the circumferential direction of the kelen member holding body 3 so as to correspond to the shaft rods 10 of the respective connecting tools (illustrated only in FIGS. 2 and 5, FIG. (Not shown in FIG. 3), each mounting portion 11a connects a pair of outer frame members 5 as shown in FIGS. 2 and 5 by utilizing the space between the pair of connecting members 6 in each set. ing. Each support cylinder 11b
Each have a through hole 12 whose axis is perpendicular to the outer peripheral surface of the mold 1, and the above-mentioned shaft rods 10 are slidably passed through the through holes 12, respectively. There is. The outer ends of the shafts 10 are respectively extended to the outside of the support cylinder 11b, and nuts 13 are screwed into the respective extended outer ends, and the nuts 13 cooperate with the outer surface of the support cylinder 11b. It works and plays a role as a stopper. still,
In the present embodiment, the connector 32 is also connected to one end (the left end in FIG. 2) in the extending direction of the kelen member 4 based on the above-described configuration, and the connector 32 is also attached to the attachment mechanism 1 described above.
It is attached to the cleaning member holder 3 by means of 1 (see FIG. 2).
reference).

On the other hand, as shown in FIG. 8, a coil spring 14 is interposed between each connector 32 and each support cylinder 11b. The coil spring 14 urges the nut 13 in a direction to be seated on the outer surface of the support cylinder 11b, so that each connecting tool 32 moves from the inner surface (lower surface) of the support cylinder 11b toward the inside of the mold 1. A certain distance apart,
The kelen member 4 is to be brought into contact with the outer peripheral surface of the mold 1 over the entire circumference in the circumferential direction. By adjusting the screwing of the nut 13, the height of the kelen member 4 with respect to the outer peripheral surface of the mold 1 and the biasing force of the outer peripheral surface of the mold 1 at the time of contact with the kelen member 4 are to be adjusted.

The vibrator B is shown in FIGS.
As shown in FIG. 2, the wheels 7 are attached to the remaining pair of connecting members 6 not provided with the wheels 7 with a symmetrical arrangement (see FIG. 2) via the attachment frame 15. In the present embodiment, as the vibrator B, a known one is used in which fan-shaped eccentric weights 17 are attached to both ends of the drive shaft 16 as shown in FIG. Force vibration is to be obtained. Mounting frame 15
As shown in FIGS. 11 and 12, two types are prepared depending on the inclination direction of the mounting lower surface (see also FIGS. 1 and 2). The mounting lower surface 18a of the one mounting frame 18
Has its front part (the left part in FIG. 11) its rear part (FIG. 11).
(The middle part, the right part), the mounting lower surface 19a of the other mounting frame 19 is inclined so as to be lower than the one mounting frame 1
Contrary to the mounting lower surface 18a in Fig. 8, the front portion (left side in Fig. 12) of the mounting lower surface 19a is the mounting lower surface 19a.
It is inclined so as to be higher than the rear part (a right part in FIG. 12) of a. And such two kinds of mounting frames 15
The vibrators B are fixed to the mounting lower surfaces 18a (19a) of (18, 19), and each vibrator B (the extending direction of the drive shaft 16 of the vibrator B) is
As shown in FIGS. 11 and 12, each mounting surface 18a thereof
It is supposed to incline according to (19a). Accordingly, by operating either of the vibrators B in the mounting frame 18 or 19, the radial component of the mold 1 and the mold 1 are generated based on the centrifugal force F of each vibrator B. Is obtained, the skeletal member 4 and the skeletal member holder 3 can move to the other end side or one end side of the mold 1 while vibrating.

Specifically, the above contents are applied to one mounting frame 1
Using the vibrator B (shown in FIG. 11) in FIG. 8 as an example, the most understandable state will be described as an example with reference to FIGS. 9 and 10. In this case, the drive shaft 16 of the vibrator B is inclined with the other end portion side (left side in FIG. 9) of the mold 1 being lowered, and the centrifugal force F generated by the fan-shaped eccentric weight 17 is increased.
Forms a centrifugal force circle C in which the upper side of the drive shaft 16 is tilted to the other end side of the mold 1. Therefore, in the upper Cu of the centrifugal force circle C, the centrifugal force Fu
When (= F) is generated, as is clear from FIG. 9, as the component force of the centrifugal force Fu, the component force Fu1 outward in the radial direction of the mold 1 and the other end portion side of the mold are formed. Component force Fu2
Will be taken out. On the other hand, in the lower part Cd of the centrifugal force circle C, as shown in FIG. 9, the centrifugal force Fd (= F
When u) is generated, as shown in FIG. 10, the centrifugal force Fd causes a component force Fd2 toward one end of the mold 1, but at the same time, the centrifugal force Fd causes a radial direction of the mold 1. An inward component force Fd1 is also generated, and the component force Fd1 increases the frictional force with respect to the outer peripheral surface of the mold 1 and suppresses the movement of the kelen member 4 and the kelen member holding body 3 toward the one end portion side. It will be. Therefore, one mounting frame 18
When the vibrator B in FIG. 2 operates, the kelen member 4 and the kelen member holder 3 are centrifugal force F (Fu, F).
Based on d), while vibrating, it moves to the other end side (leftward in FIG. 11) of the mold 1 as a whole. The same analysis is applied to the case of the vibrator B in the other mounting frame 19, and when the vibrator B in the other mounting frame 19 operates, the skeletal member 4
Also, the kelen member holder 3 vibrates based on the centrifugal force F (Fu, Fd) and moves to the one end side (rightward in FIG. 12) of the mold 1 as a whole, while vibrating.

The vibrator B on the one mounting frame 18 and the vibrator B on the other mounting frame 19
And are to be selectively driven. Therefore, it is possible to manually or automatically switch to any of the vibrators B by not only stopping the drive but also by combining a switch or sensors (not shown) with the control device.

As shown in FIG. 2, the motor 30 is attached to the other end portion (the right end portion in FIG. 2) of the keren member holder 3 in the extending direction. The rotation axis of this motor 30 is directed to the end of the kelen member 4, and the rotation axis of the motor 30 is based on the press-fitting relationship shown in FIG. It is pressed into the hole) so that it cannot rotate relative to it. As a result, based on the rotational force of the motor 30, each of the kelen member elements 31 is supposed to integrally rotate about each axis thereof. The motor 30
The driving force (rotational force) is caused by slip rotation of the keren member 4 with respect to the outer peripheral surface of the mold 1 to impart a frictional force (rubbing force) to the adhesion concrete, and the frictional force causes the adhesion. It is used to remove the concrete, and therefore the rotation direction, rotation speed, etc. of the motor 30 should be considered in consideration of various conditions such as the moving speed of the kelen member holder 3 based on the vibrator B. It is to be decided from the viewpoint of effective removal of the adhesion concrete.

Further, in this embodiment, FIGS.
As shown in FIG. 13, a backup drive motor 20 is mounted on the top of the kelen member holder 3. The drive motor 20 is connected to the wheels 7, which are adjacent to each other on both sides in the circumferential direction of the kelen member holder 3, through a drive shaft 21, a universal joint 22 and the like. The drive force of the drive motor 20 is transmitted to each wheel 7 when the vibrator B fails, and based on the drive force of the drive motor 20, the kelen member is driven through the wheel 7. The holder 3 can move on the outer peripheral surface of the mold 1 in the axial direction of the mold 1.

Next, the method for removing the mold-attached concrete according to the present embodiment will be described while using the above-described apparatus 2 for removing the mold-attached concrete.

After completing the tunnel lining work in a certain construction area,
When the formwork 1 is advanced to the next adjacent construction section, as shown in FIG. 1, from one axial end of the formwork 1 in the axial direction (for example, the end side) to the outer peripheral surface of the one end of the formwork 1. The removing device 2 for the mold adhering concrete is carried in, and thereafter, the vibrator B in the one mounting frame 18 is operated and the motor 30 (see FIG. 2) is driven. As a result, based on the vibration of the vibrator B in the one mounting frame 18, the kelen member 4 and the kelen member holder 3 are formed.
Is vibrated on the outer peripheral surface of the mold 1 while being vibrated.
While being moved toward the other end side of the mold 1 along the outer peripheral surface of each of the molds, each kelen member element 31 integrally rotates on the basis of the driving force of the motor 30 about each axis thereof. Then, based on the rotation, the frictional force is applied to the adhesion concrete, and the concrete removing work on the outer peripheral surface of the mold 1 is started.

When the kelen member 4 and the kelen member holder 3 reach the other end of the mold 1, the vibrator B and the motor 3 in one mounting frame 18 are automatically or manually operated.
0 is stopped, and then the vibrator B in the other mounting frame 19 is operated so that the moving direction of the kelen member 4 and the kelen member holding body 3 is from the other end of the mold 1 to one end of the mold 1. And the rotation direction of the motor 30 is reversed. As a result, even after the moving directions of the skeletal member 4 and the skeletal member holder 3 are changed, the concrete removing operation described above is continued.

When the kelen member 4 and the kelen member holder 3 reach the one end of the mold 1 again, the concrete removing work on the outer peripheral surface of the mold 1 is completed, and the vibrator of the other mounting frame 19 is completed. B and the motor 30 are stopped. Then, after this, the kelen member 4 and the kelen member holder 3 are carried out from the outer peripheral surface of the form 1, and the tunnel lining work is started.

Therefore, according to the above method, the apparatus 2 for removing the mold adhering concrete used for carrying out the method, and the kelen member 4 used for carrying out the method, the kelen member 4 is used.
Since the coiled core material of 1 has flexibility, the kelen member 4 has flexibility, and the keren member 4 is
As a premise, like the conventional rope, it can be arranged on the outer peripheral surface of the concrete casting formwork 1 along the circumferential direction of the formwork 1, and how to remove the formwork adhered concrete It can be applied to the mold 1 having a different cross-sectional shape.

On the other hand, the adhesion concrete on the outer peripheral surface of the mold 1
In the removal work of the mold, not only the brush material 34 is used, but also the mold adhered concrete is rubbed by the frictional force based on the slip rotation of the brush material 34 (keren member 4) against the outer peripheral surface of the mold 1. Therefore, an effective external force can be applied to the adhesion concrete. Moreover,
In the present embodiment, since the vibrator B is used as a means for moving the kelen member 4 and the kelen member holder 3 in the extending direction of the mold 1, the vibration of the vibrator B is caused by the keren. It will be used not only for moving the member 4 etc., but also for giving an effective external force by repeatedly giving a fine vibration with a sharp change to the concrete attached to the mold 1. The concrete on the outer peripheral surface of the frame 1 is removed with an extremely high removal rate.

Further, in the kelen member 4, since the brush material 34 comes into contact with the outer peripheral surface of the mold 1 and the core material 33 itself does not directly come into contact with the outer peripheral surface of the mold 1, the mold adhering concrete. In the removal work of (1), the core material 33 is protected by the brush material 34 and is not rubbed by the outer peripheral surface of the mold 1. Moreover, in the present embodiment, the core material 33 is made of metal, and the strength, durability, etc. of the core material 33 itself are improved. For this reason, the kelen member 4 is not easily broken, and the durability of the kelen member 4 is improved.

Further, in the present embodiment, when the vibrator B is out of order, the kelen member 4 is slip-rotated in the same manner as described above, and the frictional force based on the rotation is applied to the attachment concrete, while the backup is performed. Drive motor 20
Is newly driven, and the drive causes the kelen member 4 and the kelen member holder 3 to move. For this reason,
Even if the vibrator B breaks down, it can be dealt with promptly without causing any problems. Of course, the above-mentioned work form is not limited to the case where the vibrator B is out of order, and may be adopted in a normal case.

14 to 16 show the second embodiment, FIG. 17 shows the third embodiment, and FIGS. 18 to 20 show the fourth embodiment. In each of the embodiments, the same components as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the second embodiment, the same skeletal member 4 as in the first embodiment is integrally formed, and the skeletal member 4 is pressed against the outer peripheral surface of the mold 1, and the skeletal member 4 is attached to the shaft. By rotating the motor 30 around the center, the adhered concrete is removed and the skeletal member 4 and the skeletal member holder 3 are moved. That is, as shown in FIG.
One end in the extending direction of the kelen member holding body 3 is rotatably connected to one end in the extending direction of the kelen member holding body 3 via a connecting tool 32, and the other end in the extending direction of the kelen member 4 is the other end in the extending direction of the kelen member holding body 3. It is connected to a rotating shaft of a motor 30 attached to the section. In this case, one end of the keren member 4 in the extending direction and the connector 32 (kelen member holder 3) and the other end of the keren member 4 in the extending direction and the rotating shaft of the motor 30 are firmly connected by caulking or the like. Are linked to.

Further, as shown in FIG. 14, the motor 30 has a base at the other end in the extending direction of the kelen member holder 3.
As shown in FIGS. 15 and 16, the base 39 is fixed via a plate 39, and a plate-shaped main body 40 and an inner side of the main body 40 in the extending direction of the kelen member holder 3. And a standing wall 41 that stands upright. In the main body 40,
Four bolt insertion holes 43 of the motor fixing bolt 42 are formed, and each of the bolt insertion holes 43 is an elongated hole extending in the extending direction of the kelen member holding body 3. A position adjusting bolt 44 is screwed into the standing wall 41,
The tip of the bolt 44 crosses the standing wall 41 and the main body 4
0, the motor 30 can be pushed to the other end side (left side in FIG. 16) in the extending direction of the kelen member holder 3.

Accordingly, if the fixing position of the motor 30 is adjusted by the bolt 44 and the motor 30 is fixed by the bolt 42 or the like, the kelen member 4 can be easily put into a tensioned state. , Keren member 4, form 1
It is possible to press-contact the outer peripheral surface of the in the circumferential direction. When the motor 30 is driven under this condition, the kelen member 4 and the kelen member holder 3 move on the outer peripheral surface of the mold 1 based on the rotation of the kelen member 4 (the moving direction is the motor 30). Determined by the direction of rotation)
In addition, the portion of the brush material 34 that is bent between the kelen member 4 and the outer peripheral surface of the mold 1 during pressure contact is restored or attempted to be restored at the time of pressure contact or when shifting from the pressure contact state to the non-pressure contact state. A force is applied to the adhesion concrete as a frictional force, and thereby the concrete is removed.

Therefore, in this second embodiment, the motor 30 is used not only for driving the kelen member 4 but also for moving it, as in the vibrator B in the above-described embodiment. No moving drive means is required.

The kelen member 4 is arranged between the wheels 7 on both sides in the extending direction of the connecting member 6 and does not go out between the wheels 7. Therefore, due to some reason, Even if the kelen member 4 partially lags behind the other portion, that portion does not cause a large delay such that the keren member 4 extends outward in the width direction of the kelen member holding body 4.

In the third embodiment, the same keren member 4 as in the second embodiment is used, and the kelen member 4 is replaced by the mold 1
In the circumferential direction, the outer peripheral surface of the mold 1 is displaced so as to scrape. That is, in the third embodiment, as shown in FIG. 17, rails 45 are laid at the lower portions on both sides in the width direction of the mold 1 so as to extend in the extending direction of the mold 1, and each rail 45 thereof. Trolleys 46, 47 on top
Are supposed to be able to move in sync. A spring member 48 is provided on one of the carriages 46, and the other carriage 4 is provided.
7, a cylinder device 49 is provided, and the spring member 49 and the telescopic rod 49a of the cylinder device 49 are arranged on the outer peripheral surface of the mold 1 so as to extend in the circumferential direction. They are connected via the kelen member 4. Reference numeral 50 is a drive motor for the carriage 46 (47).

In the third embodiment, the spring member 4
The elastic rod 4 of the cylinder device 49 against the elastic force of 8
9a is supposed to be expanded and contracted, and along with this,
The kelen member 4 is reciprocated in the circumferential direction of the mold 1 with a predetermined stroke, and the keren member 4 scrapes the outer peripheral surface of the mold 1 to scrape off the adhered concrete. Further, in the present embodiment, at the same time, the two carriages 46 and 47 are synchronously moved in the extending direction of the mold 1, and the work of removing the adhered concrete on the outer peripheral surface of the mold 1 is performed. , Are to be sequentially finished in the extending direction of the mold 1. Of course, as another working mode, it may be possible to move both carriages 46 and 47 to move the kelen member 4 after determining that the adhered concrete has been removed.

Therefore, also in the third embodiment, since the kelen member 4 in which the brush material 34 is attached to the outer periphery of the long coil-shaped core material 33 is used, the same effect as that of the first embodiment is produced. It will be.

In the fourth embodiment, a plurality of keren member elements 3 are used.
1 is formed in an endless shape, and the outer peripheral surface of the mold 1 is rubbed by either the forward moving portion or the backward moving portion of each endless keren member element 31.

That is, in this embodiment, FIG.
As shown in FIG. 5, the core material is a chain 51 as the kelen member element 31, and a plurality of brush materials 34 are attached to the outer peripheral side of the chain 51 at predetermined intervals via brush attachment plates 52. A plurality of such keren member elements 31 are held by a kelen member holder (not shown) (basically the same as the above-described keren member holder 3) (in FIG. 18, the right half). Only the left half is shown, and the left half is omitted), and the cleaning member 4 is arranged on the outer peripheral surface of the mold 1 along the entire circumferential direction thereof.

More specifically, a rotating shaft 53 is rotatably supported by the kelen member holder at regular intervals in the extending direction of the kelen member holder, and two sprockets are provided on each rotating shaft 53. 54 are mounted respectively. Sprockets 54 on the adjacent rotating shafts 53
Each of the above-mentioned keren member elements 31 (chain 51) is wound around, and the plurality of keren member elements 31 are mechanically linked over the entire circumferential direction of the mold 1. There is.

Further, a motor 55 is attached to the kelen member holder as a second driving force applying means. The drive shaft 55a of the motor 55 also serves as one of the rotary shafts 53 as shown in FIG. 19, and the drive of the motor 55 drives all the keren member elements 31 as shown by the arrow in FIG. Is rotated, and the brush material 34 of the forward movement portion 56 or the backward movement portion 57 of each keren member element 31 rubs the outer peripheral surface of the mold 1.

Of course, also in the fourth embodiment, as in the above-described first embodiment, each of the keren members 4 (plurality of kelen member elements 31) is moved by the keren member holding body while performing the keren work, and The frame 1 is moved in the extending direction.

Therefore, in the fourth embodiment, in addition to the same effects as the first embodiment, the method of rubbing the outer peripheral surface of the mold 1 in the circumferential direction may be adopted. Instead, the motor 55 having high versatility can be used.

Although the embodiments have been described above, the present invention includes the following. Use one or a plurality of wire ropes as the core material 33. Use a metal flexible tube as the core material.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a removing device for a mold adhering concrete according to a first embodiment.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a view for explaining the support of wheels on the kelen member holder.

5 is a partially enlarged view of FIG.

FIG. 6 is a diagram illustrating a state in which kelen member elements are connected to each other via a connecting tool.

FIG. 7 is a view for explaining a press-fitting relationship between a kelen member element and a connecting shaft of a connecting tool.

FIG. 8 is a view for explaining the support of the connector with respect to the kelen member holder.

FIG. 9 is an explanatory view for explaining the operation of the vibrator.

FIG. 10 is an explanatory view for explaining the action of the vibrator on the kelen member holder.

FIG. 11 is a view showing one mounting frame for mounting the vibrator.

FIG. 12 is a view showing the other mounting frame for mounting the vibrator.

FIG. 13 is a view showing a mounting relationship between a backup drive motor and wheels.

FIG. 14 is a front view showing a removing device for a mold adhering concrete according to a second embodiment.

FIG. 15 is a plan view showing how the motor for driving the cleaning member is attached.

FIG. 16 is a side view of FIG.

FIG. 17 is a perspective view showing a device for removing a mold adhering concrete according to a third embodiment.

FIG. 18 is an explanatory view showing a device for removing a mold adhering concrete according to a fourth embodiment.

FIG. 19 is a view showing a mounting relationship between each cleaning member and a drive motor.

FIG. 20 is a perspective view showing a cleaning member according to a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Formwork 2 Device for removing concrete attached to formwork 4 Keren member 20 Backup drive motor 30 Keren drive motor 31 Keren member element 32 Connector 33 Core material 34 Brush material 39 Base 41 Standing wall 42 Motor fixing Bolt 43 Bolt insertion hole 44 Position adjustment bolt 46 One bogie 47 The other bogie 48 Spring member 49 Cylinder device 50 Bogie drive motor 51 Chain 55 Motor 56 Forward part 57 Return part B Vibrator X Form Extension direction

Claims (16)

[Claims] 1. A keren member having a brush material attached to the outer peripheral side of a long flexible core material is prepared, and the keren member is relatively displaced with respect to the outer peripheral surface of the mold. Method for removing concrete attached to formwork. 2. The method for removing a mold adhering concrete according to claim 1, wherein the core material is made of metal. 3. The relative displacement of the keren member according to claim 1, wherein the kelen member is moved in the extending direction of the mold while being displaced so as to scrape in the circumferential direction of the mold. A method for removing a form-attached concrete, which is characterized in that: 4. The extending direction of the mold according to claim 1, wherein the relative displacement of the mold member causes the mold member to rotate on the outer peripheral surface of the mold around the axis of the mold member. The method for removing a mold-adhesive concrete is characterized by: 5. A keren member to which a brush material is attached on the outer peripheral side of a long flexible core member, and for causing the keren member to move in the extending direction of the mold along the outer peripheral surface of the mold. And a second driving force applying means for applying a driving force for generating a frictional force between the kelen member and the outer peripheral surface of the mold. An apparatus for removing a mold adhering concrete, comprising: 6. The mold according to claim 5, wherein the second driving force applying means is set so as to apply a driving force for displacing the kelen member in a circumferential direction of the mold. Frame removal concrete remover. 7. The mold member according to claim 6, wherein the kelen member is formed in an endless shape, and one of the forward moving portion and the backward moving portion of the kelen member is on the outer peripheral surface of the mold in the circumferential direction of the mold. The second driving force applying means is a rotation driving means for applying a driving force for rotating the kelen member in the circumferential direction of the kelen member. Equipment for removing concrete attached to formwork. 8. The contact state adjusting means for adjusting the contact state of the kelen member with respect to the outer peripheral surface of the mold according to claim 5, wherein the second driving force applying means includes the kelen member. A device for removing a mold adhering concrete, which is set so as to apply a driving force for rotating the shaft center of the mold. 9. The contact state adjusting means according to claim 8, wherein the contact state adjusting means is set so as to bring the kelen member into pressure contact with the outer peripheral surface of the mold, and the first driving force applying means is omitted. A device for removing the concrete-framed concrete. 10. The mold adhering concrete according to claim 8, wherein the contact state adjusting means is set so as to cause the kelen member to slip and rotate with respect to the outer peripheral surface of the mold. Removal device. 11. The vibrating force applying means according to claim 10, wherein the first driving force applying means is a vibrating force applying means for generating a vibration for moving the kelen member in the extending direction of the mold. Formwork attachment concrete
Removal device. 12. A long flexible core member, and a brush member attached to the outer peripheral side of the core member.
A keren member for removing a form-attached concrete, which is characterized in that: 13. The removal of a mold adhering concrete according to claim 12, wherein the elongated flexible core member is a metal core member formed in a coil shape and extending. Keren member. 14. The skeletal member for removing a mold adhering concrete according to claim 12, wherein the elongated flexible core member is a chain. 15. The wire rope according to claim 12, wherein the long flexible core member is a wire rope.
A keren member for removing a form-attached concrete, which is characterized in that: 16. The skeletal member for removing a mold adhering concrete according to claim 12, wherein the elongated flexible core member is a metal flexible tube.