JP2001032689A - Tunnel interior plate direct-placing construction method and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fix a tunnel interior plate to a form and to execute work simultaneously with placing of secondary lining concrete. SOLUTION: In this construction method and device for fitting a tunnel interior plate 18 to the surface of secondary lining concrete 14 placed in a tunnel, the tunnel interior plate 18 is made to abut on the outer peripheral surface of a form 16, and a drawing body 30 of a fixture 28 is inserted in a fastening hole of the tunnel interior plate 18 from the inside of the form 16. The drawing body 30 is then tilted and locked to the tunnel interior plate 18, and drawn to the inside of the form 16 and fixed in close contact with the form 16. After concrete is placed, the drawing body 30 is separated from the fixture 28, and the form 16 is removed. The drawing body 30 is thereby embedded in the concrete 14, and the tunnel interior plate 18 is directly fitted to the surface of the concrete 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the simultaneous construction of a tunnel interior plate for protecting the surface of a secondary lining concrete placed in a tunnel and improving the appearance of the tunnel at the same time as the concrete placing for a secondary lining. The present invention relates to a method and a device for directly placing a tunnel interior plate. In the present specification, “placement” refers to filling fluid concrete that has not been cured and hardened between the formwork and the inner wall surface of the tunnel or the concrete for primary lining.

[0002]

2. Description of the Related Art Originally, a gaze guidance is promoted from a luminance difference from a tunnel wall surface (the surface of a secondary lining concrete) to improve a driver's visibility, support a stable driving of a car, and enhance a tunnel wall surface. As a measure to improve the protection and aesthetics of the tunnel wall by covering the water leakage of the pipe, the exposure of the pipes, and the irregularity of the tunnel wall, a white interior painted tunnel interior plate is usually installed below the tunnel wall (installation). ).

[0003] In that process, first, after fixing metal fittings are fixed to the surface of the secondary lining concrete, which is the tunnel wall surface,
Fixing the tunnel interior plate to each fixing bracket,
Alternatively, the tunnel interior board was directly fixed to the surface of the concrete for secondary lining via a mortar for attaching without using a fixing bracket.

[0004]

Conventionally, the construction of a tunnel interior board has been performed separately after the concrete for secondary lining has been cast. Therefore, the longer the total length of the tunnel, the longer the construction period, and it takes nearly one year. In some cases, a long construction period was a problem.

[0005] Further, since a tunnel interior plate is individually fixed to each fixing metal, or a tunnel interior plate is individually fixed via a mortar to be attached, there has been a problem that work efficiency is not good.

[0006] In addition, since the inside of the tunnel has spring water, high humidity, anti-freezing agent in winter, exhaust gas from automobiles, etc., it is easily polluted, and metal fittings are corroded. In addition, the mortar to be attached deteriorates, and the surface of the tunnel interior plate becomes dirty due to the impact from the car, the pressure of the cleaning tool during cleaning work, etc. It is necessary to perform such operations many times, and a great burden is imposed on this maintenance.

Further, in repair work such as replacement of fixing brackets, cleaning and replacement of a tunnel interior board, it is necessary to stop one side of the lane in the tunnel, which results in traffic congestion, and when repair work of the tunnel interior board is required. There is a strong demand for a construction method that can be easily constructed.

In order to address this demand, the present invention provides a method for directly installing a tunnel interior board to a formwork which can be easily fixed to a formwork and which can be simultaneously installed with concrete for secondary lining. It is intended to provide such an apparatus.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a method and an apparatus for mounting a tunnel interior plate on a surface of a concrete for secondary lining cast in a tunnel, wherein the concrete for secondary lining is cast in a tunnel. On the outer peripheral surface of the formwork, a number of interior boards are fixedly attached to the substrate, and a tunnel interior plate formed by passing through a fixing hole at an appropriate position on the substrate is brought into contact with the surface of the tunnel interior plate to the formwork. After inserting the retractable fastener with the tiltable retractable body detachably attached to the tip from the inside of the formwork in the fastening hole of the interior plate, insert the retractor and tilt the retractor vertically by its own weight. To the tunnel interior plate,
After the fastener is pulled inside the mold and the tunnel interior plate is brought into close contact with the mold, the fastening metal is fixed to the interior of the mold to fix the tunnel interior plate to the mold, and then the tunnel By casting concrete for secondary lining through a mold inside, curing and curing the concrete for secondary lining, separating the attracting body from the tip of the fastener and removing the mold , With the buried body buried in the secondary lining concrete and the tunnel interior panel being directly attached to the surface of the secondary lining concrete, or the tunnel interior panel being stopped from the inside of the formwork. In the insertion of the fastener of the fastener into the hole,
After inserting the fastening fitting into the insertion tube, after inserting the drawer together with the insertion tube into the fastening hole of the tunnel interior plate, by pulling out only the insertion tube from the fastening hole of the tunnel interior plate, Characterized in that the attracting body is tilted in the vertical direction by its own weight, or when the tunnel interior plate abuts on the outer peripheral surface of the mold, the tunnel interior plate is placed on a protruding plate arranged below the outer periphery of the mold. After being placed, the tunnel interior boards are sequentially stacked on top of the tunnel interior boards, and after fastening each tunnel interior board to the formwork, concrete for secondary lining is poured, or At the time of contact of the tunnel interior plate with the outer peripheral surface of the formwork, the tunnel interior plate is placed in each section of the projecting plate arranged in a substantially lattice shape on the outer periphery of the mold, and then each tunnel interior plate is attached to the formwork. After fixing to the ground, concrete for secondary lining is poured Or the substrate of the tunnel interior plate is molded from a flexible material to improve the adhesion to the outer peripheral surface of the formwork, and to the surface of the cast secondary lining concrete for the tunnel interior plate. It is characterized by preventing leaching of water.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A direct installation device for a tunnel interior plate according to the present invention comprises a formwork 16, a tunnel interior plate 18, and a fastening member 28, as shown in FIGS. The structure will be described in detail below.

The formwork 16 is for placing concrete 14 for secondary lining into the tunnel 12 and has a substantially semicircular front face and is equipped with a moving mechanism (not shown).

The tunnel interior plate 18 has a large number of interior plates 22 adhered to the surface of the substrate 20, and a fixing hole 24 penetrates at an appropriate position on the substrate 20.

In the present embodiment, the tunnel interior board 18 is such that the substrate 20 is a flexible concrete board mixed with glass fibers, the interior board 22 is a tile, and the adjacent interior boards 22 are tiles.
Joints 26 are formed between the joints 26, and the fixing holes 24 are formed on the joints 26.
Through.

The fastening fitting 28 has a tipping body 30 detachably attached to the tip thereof.

In this embodiment, the drawer 30 is a flat plate,
By attaching it to the tip of the fastening member 28, it can be tilted in the vertical direction by its own weight, and the attachment / detachment means of the attracting body 30 is provided by a screw mechanism 32.

Further, the attracting member 30 of the fastening member 28 is inserted into the fastening hole 24 of the tunnel interior plate 18, and after the insertion, the attracting member 3 is inserted.
In order to make it easy to incline 0 vertically by its own weight, a fastening tube 28 is provided for inserting the fastening member 28 and inserting it into the fastening hole 24 together with the fastening member 24.

By adopting the insertion tube 34, after the fastening fitting 28 is inserted in advance, the tunnel interior plate 1
8 together with the fastening fitting 28 into the fastening hole 24 of FIG.
By inserting only the insertion tube 34 into the inside of the mold 16 after the insertion, the pulling body 30 can be easily tilted vertically by its own weight and locked to the tunnel interior plate 18.

In order to efficiently attach the tunnel interior plate 18 to the mold 16, a protruding plate 36 is provided below the outer periphery of the mold 16 so as to be freely retractable.

The projecting plate 36 is made to project outward when the tunnel interior plate 18 is brought into contact with the formwork 16 and then placed on the projecting projecting plate 36 at the lowermost level of the tunnel which serves as a reference for the vertical position. The interior panel 18 is placed, and the tunnel interior panel 18 is sequentially stacked on the tunnel interior panel 18 to form the form 1
6 and the tunnel interior plate 18 is brought into contact with each other.
It is stored inside and ready for the next step of placing concrete for secondary lining.

After the fastening operation of the tunnel interior plate 18 is completed, the projecting plate 36 is housed in the form 16 by the form 16
When the secondary lining concrete 14 is cast in a state where the protruding plate 36 is protruded outward, after curing and curing, the traces of the protruding plate 36 remain as recesses on the surface of the secondary lining concrete when the mold 16 is removed from the mold. However, since it not only impairs the appearance but also causes a decrease in strength, it is stored in the formwork 16 before the concrete for secondary lining is cast, and the surface of the concrete for secondary lining is smoothed. This is for preventing a decrease in strength.

Also, the fastening holes 24 of each tunnel interior plate 18
Are respectively penetrated to predetermined positions, and the lowermost tunnel interior plate 18 serving as a reference for the vertical position on the protruding plate 36 is provided.
Since the mounting hole is placed, no vertical displacement of the fastening hole 24 occurs, but the following adjusting mechanism 38 is provided inside the formwork 16 to adjust the horizontal displacement of the fastening hole 24. Have been.

The tunnel interior plate 1 is previously provided on the peripheral surface of the mold 16.
8, a support plate 44, which penetrates the insertion hole 42 of the fastening fitting 28, is movably disposed inside the mold 16 corresponding to the long hole 40. The adjusting mechanism 38 is constituted by the provision.

First, the support plate 44 is adjusted by the adjusting mechanism 38.
Is moved in the long hole 40 of the mold 16 in the left-right direction, and the mold 1 is moved.
6 and the fixing hole 2 of the tunnel interior plate 18 which is in contact with the outer peripheral surface
4, the insertion hole 42 of the support plate 44,
6 and the fastening holes 24 of the tunnel interior plate 18 are aligned, and then the fastening fitting 28 can be inserted into the fastening holes 24 of the tunnel interior plate 18 from inside the formwork 16. Insertion of the fitting 28 into each of the holes 42, 40, 24 becomes extremely easy.

At this time, the elongated hole 40 formed in the outer peripheral surface of the mold 16 is completely covered by the tunnel interior plate 18 when the tunnel interior plate 18 is fixed to the mold 16.
The poured secondary lining concrete 14 does not enter the inside of the formwork 16.

In the drawing, reference numeral 46 denotes a sealing member attached to the outer peripheral edge of each tunnel interior plate 18, reference numeral 48 denotes a protection sheet attached to the surface of the interior plate 22, and reference numeral 50 denotes an outer peripheral surface of the fastening fitting 24. The screw portion 52 is a screw portion 50 of the fastening fitting 24.
A fixing nut 54 corresponding to the fixing plate 24 supports the fixing fitting 24.
Reference numeral 56 denotes a seat plate for supporting the inner wall surface of the tunnel.

A method for directly attaching the tunnel interior plate 18 to the surface of the secondary lining concrete 14 in the tunnel 12 using the present apparatus will be described in detail below.

First, the mold 16 is moved to a predetermined position in the tunnel 12.

At this time, the tunnel entrance side (the side opposite to the tunnel excavation side) of the formwork 16 is overlapped with a concrete placing part (not shown) for the secondary lining.

Next, the protruding plate 36 on the lower side of the outer periphery of the formwork 16 is protruded outward, and the protruding plate 36 on which the tunnel interior plate 18 previously carried near the inner wall surface 56 of the tunnel 12 is protruded is projected. It is placed on top, and the tunnel interior plate 18 is brought into contact with the outer peripheral surface of the formwork 16.

Next, the tunnel interior plates 18 are sequentially stacked on the lowermost tunnel interior plate 18 serving as a reference.

At this time, the space between the tunnel interior plates 18 adjacent vertically and horizontally is surely sealed by the seal member 46, and the secondary lining concrete 14 to be poured is leached into the surface of the tunnel interior plate 18 and Intrusion into the mold 16 can be prevented.

Next, the support plate 44 inside the mold 16 is moved so that the insertion hole 42 of the support plate 44 matches the fastening hole 24 of each tunnel interior plate 18 which is in contact with the outer peripheral surface of the mold 16. Let it be positioned.

The operation of adjusting the positions of the insertion hole 42 of the support plate 44 and the fastening hole 24 of the tunnel interior plate 18 is performed individually for each tunnel interior plate 18.

Next, the insertion tube 3 is inserted from the inside of the mold 16.
4 is inserted into the through hole 4 of the support plate 44.
2. After being inserted into the fastening hole 24 of the tunnel interior plate 18 through the long hole 40 of the mold 16, only the insertion tube 34 is pulled out to the inside of the mold 16, and the pulling body 30 at the tip of the fastening fitting 28 is removed. It is tilted vertically by its own weight and locked to the tunnel interior plate 18.

At this time, the fitting 28 is inserted into the insertion tube 34.
, It is easy to insert the fastening fitting 28 into the insertion hole 42, the long hole 40, and the fastening hole 24, and only the insertion tube 34 is extracted from each of the holes 44, 40, and 24. Thus, the pulling body 30 at the tip of the fastening member 28 can be easily tilted in the vertical direction by its own weight.

Next, the tunnel interior plate 18 is attached to the fastening fitting 2.
8 to the inside of the mold 16 so that the mold 1
The tunnel interior plate 18 is brought into close contact with the outer peripheral surface of 6.

At this time, since the substrate 20 of the tunnel interior plate 18 is a flexible concrete plate, the substrate 20 is securely adhered to the outer peripheral surface of the formwork 16 and adheres to the surface of the tunnel interior interior plate 18 of the concrete 14 for secondary lining. Leaching can be more effectively prevented.

Next, on the inner side of the mold 16, the fastening fitting 2 is mounted.
8 is screwed to the support plate 44 via the seat plate 54 and the fixing nut 52 is screwed to the screw portion 50 of the fixing metal fitting 28.
Support and fix.

Next, after the work of fixing each tunnel interior plate 18 to the formwork 16 is completed, the projecting plate 36 is attached to the formwork in order to smooth the surface of the cast concrete for secondary lining and prevent the strength from being reduced. 16 and stored.

Next, the peripheral edge of the formwork 16 on the tunnel wive side (tunnel excavation side) is securely covered (wife stop).

Next, the concrete for secondary lining 14 is poured between the inner wall surface 56 of the tunnel and the formwork 16 and cured and cured.

Next, the fastening fitting 28 is attached to the tip of the attracting body 30.
By releasing the screw mechanism 32 which is the attaching / detaching means, the member is separated from the attracting body 30.

The pulling body 30 is separated from the tip of the fastening member 28 because the pulling body 30 is buried together with the tunnel interior plate 18 in the cured and hardened secondary lining concrete 14. In this state, the mold 16 cannot be removed, and this removal is performed.

Also, the fastening 2 from which the attracting body 30 is separated.
8 removes from the support plate 44, and attaches a new delivery body 30 for the next use.

Next, the mold 16 is removed.

At this time, since the tunnel interior plate 18 is fixed to the outer peripheral surface of the formwork 16, when the secondary lining concrete 14 is cast, the substrate 20 side of the tunnel interior plate 18 is placed on the secondary lining concrete. After curing and curing of the secondary lining concrete 14 is completed, the tunnel interior plate 18 is fixed to the surface of the cast secondary lining concrete 14.

Further, when the mold 16 is removed from the mold, the tunnel interior plate 18 fixed to the outer peripheral surface of the mold 16 is fixed to the secondary lining concrete 14 in which the substrate 20 has been cured and hardened. Is strong, the tunnel interior plate 18 is
6 easily peels off.

Next, the protective sheet 48 on the surface of the interior panel 22 of the tunnel interior panel 18 fixed to the surface of the secondary lining concrete 14 is removed, and the tunnel interior panel 1 is removed.
8 is cleaned.

According to the above-described process, the construction of the tunnel interior plate 18 is completed together with the placement of the secondary lining concrete 14 at the place where the formwork 16 is installed.

The construction of the tunnel interior plate 18 is performed by sequentially moving the form 16 toward the tunnel wife, and is performed over the entire length of the tunnel 12.

FIGS. 9 to 11 show another example of the apparatus according to the present invention.

In this embodiment, the triangular ridge-shaped projecting plate 36 is attached to the form 1
6 are arranged in a substantially lattice shape on the outer periphery of the inner wall 6. When the tunnel interior plate 18 abuts on the outer peripheral surface of the formwork 16, the tunnel interior plate 18 is placed in each section 58 formed by the projecting plate 36. After each of them is placed, each tunnel interior plate 18 is fastened to the mold 16 via a fastening fitting 28, and then the secondary lining concrete 14 is cast.

At this time, in the same manner as in the previous example, in order to smooth the surface of the cast concrete for secondary lining and prevent the strength from being reduced, after the work of fastening the tunnel interior plate 18 to the formwork 16 is completed, the projecting plate 36 It is desirable that the projecting plate 36 be able to be retracted and retracted in order to be accommodated in the formwork 16. However, the projecting length of the protruding plate 36 from the formwork 16 is shortened, and the tunnel interior plate 18 and By taking care to minimize damage to the lining concrete surface, the protruding plate 36 does not necessarily have to be freely retractable.

In this embodiment, the tunnel interior plate 18
Are placed one by one in each section 58 formed by the protruding plate 36, so that there is no displacement of the tunnel interior plate 18 in the vertical and horizontal directions of the formwork 16 and the tunnel interior plate 18 The casting operation can be performed, and there is no need to provide the adjusting mechanism 38 on the formwork 16 as in the previous example.

In both examples, the tunnel interior plate 18
Is not limited to a concrete board having no flexibility, and the interior board 22 is not limited to a tile, and a board material such as a wall panel can be used freely.

The fastening fitting 28 is inserted into the fastening hole 24 of the tunnel interior plate 18 by inserting it into the insertion tube 34, but the insertion tube 34 is omitted and the fastening fitting 28 is omitted. To the fastening hole 2 of the tunnel interior plate 18
Inserting into 4 is self-evident.

Further, by suspending the tunnel interior plate 18 from above the outer periphery of the form 16 using a wire or the like,
It is obvious that the projecting plate 36 can be omitted.

Further, the tunnel interior plate 1 on the outer periphery of the
The fastening of the mold 8 is performed by a fastening metal fitting 28 having a tipping body 30 which can be freely attached and detached at the tip thereof.
A bolt can be used instead of the fastening fitting 28 by allowing a bolt to penetrate through the tunnel interior plate 18 from the inside and fastening a nut to the bolt between the formwork 16 and the tunnel inner wall surface 56 by an operator. It becomes possible.

Further, in the previous example, the work of abutting the tunnel interior plate 18 on the form 16 utilizes the projecting plate 36 protruding below the outer periphery of the form 16 so as to be able to protrude and retract.
The length of the projecting plate 36 protruding from the formwork 16 is shortened, and consideration is given to minimizing damage to the tunnel interior plate 18 and the surface of the concrete 14 for secondary lining when the formwork is removed. However, the projecting plate 36 does not necessarily have to be able to come and go.

The place where the tunnel interior plate 18 is fixed to the mold 16 is mainly a lower portion of the mold 16.
It is free to stop at other places.

In the later example, the protruding plate 36 is a triangular ridge, but may be a ridge of other shapes such as a rectangular shape, and may be linearly arranged in the vertical and horizontal directions. However, it is obvious that they are scattered at predetermined intervals.

[0062] In both cases, the concrete casting of a semi-circular tunnel or the like is performed.
For example, it can be used for underwater tunnels, sewers, and the like.

[0063]

According to the method and the apparatus for directly placing a tunnel interior board according to the present invention, a tunnel interior board is formed on the outer peripheral surface of a mold for placing concrete for secondary lining. Insert a fastener with a tiltable pulling body at the tip from the inside into the fastening hole of the tunnel interior plate, tilt the pulling body vertically by its own weight and lock it, and mold the fastener By pulling it to the inside of the frame to make it closely adhere, and to install the tunnel interior board at the same time as placing concrete for secondary lining,
The work of fastening the tunnel interior board to the formwork is extremely easy, and there is no need to perform the tunnel interior board separately from the secondary lining, so that the construction period of the tunnel interior board can be greatly reduced.

In addition, by directly attaching the tunnel interior plate to the surface of the concrete for secondary lining, it is possible to omit the fixing bracket and the mortar to be used conventionally. Not only is there no damage to the tunnel interior plate due to the deterioration of the tunnel, but also the number of repair work such as replacement of fixing brackets and replacement of the tunnel interior plate is drastically reduced, and the burden on maintenance can be drastically reduced.

In addition, in inserting the drawer of the fastener into the fastening hole of the tunnel interior plate, the fastener is inserted into the insertion tube so that the fastening hole of the tunnel interior plate can be inserted into the fastening hole.
Insertion of the fastener is facilitated, and by pulling out only the insertion tube from the fastener hole, the attracting body of the fastener can be easily tilted vertically by its own weight.

Further, when the tunnel interior plate abuts on the outer peripheral surface of the mold, the tunnel interior plate is placed on a projecting plate disposed below the outer periphery of the mold, and the tunnel interior plate is sequentially placed above the tunnel interior plate. After stacking and fixing each tunnel interior board to the formwork, by casting concrete for secondary lining, the lowermost tunnel interior board, which is a reference for the vertical position, is placed on the protruding board Therefore, there is no displacement of the fastening hole of the tunnel interior plate in the vertical direction.

When the tunnel interior plate abuts on the outer peripheral surface of the mold, the tunnel interior plate is placed in each section of the protruding plate disposed substantially in a lattice shape on the outer periphery of the mold. After the interior panel is fixed to the formwork, the concrete for the secondary lining is cast, so that one tunnel interior panel is placed in each section formed by the protruding plate. There is no positional deviation of the tunnel interior board in the up, down, left and right directions, and the direct installation work of the tunnel interior board can be performed accurately.

Also, by forming the substrate of the tunnel interior board from a flexible material, the adhesiveness to the outer peripheral surface of the formwork is improved, and the poured secondary lining concrete is leached into the surface of the tunnel interior board. Can be prevented.

[Brief description of the drawings]

FIG. 1 is an enlarged side view of a main part showing a direct installation device for a tunnel interior plate according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a front view of a tunnel interior plate.

FIG. 4 is a side view of the same.

FIG. 5 is an enlarged front view of a portion A in FIG. 4;

FIG. 6 is an exploded front view of the fastening fitting and the insertion tube.

FIG. 7 is a front view showing the process of fastening the tunnel interior plate to the formwork.

FIG. 8 is a simplified front view showing a step of directly placing a tunnel interior board according to the present invention.

FIG. 9 is an enlarged front view of a main part showing another example of a direct installation device for a tunnel interior plate according to the present invention.

FIG. 10 is a side view of the same.

FIG. 11 is an enlarged view of a portion B in FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Tunnel 14 Secondary lining concrete 16 Formwork 18 Tunnel interior board 20 Substrate 22 Interior board 24 Support hole 28 Fastener 30 Puller 34 Insert tube 36 Projection plate 56 Tunnel inner wall surface 58 Section

Continued on the front page. (72) Inventor Yuji Funahira 3141 in Hiramatsu, Aira-cho, Aira-gun, Kagoshima Prefecture Inside Infratec Co., Ltd. (72) Inventor Takeshi Aizaki 144 144, Shinjyo-machi, Masamitsu-gun, Motosu-gun, Gifu F-term in Gifu Industries Co., Ltd. (reference) 2D055 CA03 CA04

Claims (10)

[Claims] 1. A method of attaching a tunnel interior plate (18) to a surface of a secondary lining concrete (14) cast into a tunnel (12), wherein the secondary lining concrete (18) is placed in the tunnel (12). A large number of interior boards (22) are fixedly attached to the substrate (20) on the outer peripheral surface of the formwork (16) on which the 14) is cast, and the fixing holes (2
4) Insert the tunnel interior plate (18) through which the surface of the tunnel interior plate (18) comes into contact with the formwork (16), and insert it into the fastening hole (24) of the tunnel interior plate (18). A fastening fitting with a detachable body (30) that can be freely tilted attached to the tip from the inside of the frame (16)
After inserting the retracting body (30) of (28), the retracting body (30) is tilted vertically by its own weight and locked to the tunnel interior plate (18),
Pull the fastening fitting (28) inside the formwork (16) and place it inside the tunnel interior plate.
After the (18) is brought into close contact with the formwork (16), the fastening fitting (28) is attached to the formwork (1).
6) After fixing the tunnel interior plate (18) to the formwork (16) by fixing it inside, the concrete (14) for secondary lining (14) is inserted into the tunnel (12) via the formwork (16). After curing and curing of the concrete for secondary lining (14), the drawn body (30) is separated from the tip of the fastening fitting (28), and the mold (16) is removed from the mold. , Burying the delivery body (30) in the secondary lining concrete (14) and mounting the tunnel interior plate (18) directly on the surface of the secondary lining concrete (14). Direct installation of tunnel interior panels. 2. When inserting the pulling body (30) of the fastening member (28) into the fastening hole (24) of the tunnel interior plate (18) from the inside of the formwork (16), the fastening member (28). After inserting into the insertion tube (34),
Insert the delivery body (30) together with the insertion tube (34) into the tunnel interior plate (1
After the insertion tube (34) is inserted into the fastening hole (24) of (8), only the insertion tube (34) is pulled out from the fastening hole (24) of the tunnel interior plate (18), so that the pulling body (30) is pulled by its own weight. The method for directly placing a tunnel interior plate according to claim 1, wherein the tunnel interior plate is tilted in a vertical direction. 3. A protruding plate disposed below the outer periphery of the formwork (16) when the tunnel interior plate (18) abuts on the outer peripheral surface of the formwork (12).
After placing the tunnel interior board (18) on the (36), the tunnel interior boards (18) are sequentially stacked above the tunnel interior board (18), and each tunnel interior board (18) is 3. The method of claim 1 or 2, wherein the concrete for secondary lining (14) is cast after fixing. 4. When the tunnel interior plate (18) abuts on the outer peripheral surface of the formwork (12), each section (58) of the projecting plate (36) arranged in a substantially lattice shape on the outer periphery of the formwork (16). After placing the tunnel interior plate (18) in the), after fastening each tunnel interior plate (18) to the formwork (16),
The method according to claim 1 or 2, wherein concrete for secondary lining (14) is cast. 5. A method for forming a substrate (20) of a tunnel interior plate (18) from a flexible material to improve the adhesion to an outer peripheral surface of a formwork (16) and casting a concrete for secondary lining (20). 5. The method according to claim 1, wherein the leaching to the surface of the tunnel interior board (18) is prevented. 6. An apparatus for mounting a tunnel interior plate (18) on a surface of a secondary lining concrete (14) cast in a tunnel (12), wherein a number of interior plates (22) are fixed to a substrate (20). Let
A tunnel fitting plate (18) having a fastening hole (24) penetrated at an appropriate position on the substrate (20), and a fastening fitting (28) having a tipping freely retractable body (30) attached at its tip in a detachable manner. ) And a formwork (16) for placing concrete for secondary lining (14) in the tunnel (12), and placing concrete (14) for secondary lining in the tunnel (12). On the outer peripheral surface of the formwork (16) to be
The surface of the tunnel interior plate (18) is brought into contact with the formwork (16), and the fastening fitting (28) is drawn into the fastening hole (24) of the tunnel interior plate (18) from inside the formwork (16). After inserting the body (30), the attracting body (30) is tilted vertically by its own weight and locked to the tunnel interior plate (18), and the fastening metal fitting (28) is pulled inside the formwork (16) After the tunnel interior plate (18) is brought into close contact with the formwork (16), the fastening fitting (28)
By fixing the inside of the formwork (16),
After fixing (18) to the formwork (16), the formwork is placed in the tunnel (12).
Pour the secondary lining concrete (14) through (16), and after curing and curing of the secondary lining concrete (14), fastening fittings (28)
The drawn body (30) is separated from the tip of the concrete body, and the formwork (16) is removed from the form.
A device for directly placing a tunnel interior plate, wherein the tunnel interior plate is directly mounted on a surface of the concrete for secondary lining. 7. When inserting the pulling body (30) of the fastening member (28) from the inside of the formwork (16) into the fastening hole (24) of the tunnel interior plate (18), the fastening member (28). After inserting into the insertion tube (34),
Insert the delivery body (30) together with the insertion tube (34) into the tunnel interior plate (1
After the insertion tube (34) is inserted into the fastening hole (24) of (8), only the insertion tube (34) is pulled out from the fastening hole (24) of the tunnel interior plate (18), so that the pulling body (30) is pulled by its own weight. 7. The apparatus according to claim 6, wherein the apparatus is tilted in a vertical direction. 8. A protruding plate disposed below the outer periphery of the formwork (16) when the tunnel interior plate (18) abuts on the outer peripheral surface of the formwork (16).
After placing the tunnel interior board (18) on the (36), the tunnel interior boards (18) are sequentially stacked above the tunnel interior board (18), and each tunnel interior board (18) is 8.) The direct installation device for a tunnel interior plate according to claim 6 or 7, wherein a concrete for secondary lining (14) is cast after fixing to the tunnel interior plate. 9. When the tunnel interior plate (18) abuts on the outer peripheral surface of the formwork (12), each section (58) of the projecting plate (36) arranged in a substantially lattice shape on the outer periphery of the formwork (16). After placing the tunnel interior plate (18) in the), after fastening each tunnel interior plate (18) to the formwork (16),
8. The device for directly placing a tunnel interior plate according to claim 6, wherein a concrete for secondary lining is placed. 10. The substrate (20) of the tunnel interior plate (18) is formed of a flexible material to improve the adhesion to the outer peripheral surface of the formwork (16), and the concrete for secondary lining ( 10. The direct installation apparatus for a tunnel interior board according to claim 6, wherein the leaching to the surface of the tunnel interior board (18) of (14) is prevented.