JP6496440B1 - Tiling method for tunnel wall - Google Patents

Abstract

[PROBLEMS] To reduce the required number of workers and improve the construction quality and workability of tile attachment in the tile attachment work process on the inner wall surface of a tunnel.
SOLUTION: A plurality of square tiles are formed by forming a strip-shaped tile sheet in which a flexible long and narrow tape is attached to the back surface thereof and arranged in a vertical row with a gap corresponding to a joint interposed therebetween. The sheet is attached so that the back surface of the tile adheres to the adhesive-coated surface formed on the inner wall surface of the tunnel.
[Selection] Figure 4

Description

The present invention relates to a tile attaching method for a tunnel inner wall surface.

Conventionally, the tile pasting method for the inner wall surface of a tunnel is mainly composed of the following operations.
[1] As the pre-treatment work, the work of inking the tile attachment height, the covering of the tile attachment surface, and the cleaning of the tunnel inner wall surface.
[2] Primer application work as a ground treatment and ground preparation work to make the surface uniform.
[3] Tile attachment preparation work: pier installation work, piercing tape curing work, and adhesive application work to the lower side of the sash body drawing position.

  [4] Tiles are placed on the mask plate with a partition plate as a tile pasting operation, the mask plate with the partition plate is pasted together with the tile on the adhesive coating part of the tunnel wall, and the tile is vibrated. Gluing with a gun, removing a mask with a partition plate, and adjusting the joint gap between tiles uniformly.

[5] As joint treatment work, the work of applying joint material with a trowel, the work of wiping off the joint material adhering to the tile surface, and the work of washing the tile surface.
[6] Cleaning the entire tile surface.
[7] Work to fill the top of the pasted tile with sealant.
[8] Work to remove the pier.

  In the above series of work, [1] to [3] and [4] to [8] are generally different in the group of workers, but in order to perform any work efficiently, familiarize each work. A lot of highly skilled workers are required. Therefore, in order to reduce the level and amount of these series of work as much as possible, there is a method to attach tiles to the inner wall of the tunnel with anchors etc. after pasting tiles on a 90 cm x 190 cm panel etc. in advance at the factory. Known (for example, see Patent Document 1).

  In addition, in the above work [4], the size of the tile is doubled to reduce the work of attaching the tile and the joint work (for example, see Patent Document 2).

JP2016-037758 JP2009-235839

  However, the method of attaching the tile to the panel etc. in the factory in advance and performing the joint treatment and then attaching it to the inner wall surface of the tunnel with the anchor etc. may cause the tile to fall together with the panel when the anchor comes off. There is a problem that the tile protrudes to the road side as compared with the case where the tile is directly attached. In addition, even if the size of the tile is doubled, it has not yet been possible to reduce on-site personnel and processes that do not require a work group.

  The present invention has been made in consideration of such circumstances, and it is possible to reduce the number of man-hours required for tile attaching work and to reduce the number of workers involved in the tile attaching on the inner wall surface of the tunnel. It provides an attachment method.

The present invention relates to a method for attaching tiles to the inner wall surface of a tunnel, in which a plurality of rectangular tiles are arranged in a vertical row with a flexible thin tape attached to the back surface, with gaps corresponding to joints sandwiched between each other. Forming a strip-shaped tile sheet and forming a protruding end of the tape protruding a predetermined length from one end in the tile arrangement direction of the tile sheet; and forming the formed tile sheet into a protruding end of the tape. The tile arrangement direction along the direction of gravity so that the end portion having the upper side is on the surface , and the tile back surface is adhered to the adhesive application surface formed on the inner wall surface of the tunnel, and the attached tile sheet , der provides a end with a protruding end of the tape, the tile paste method of tunnel wall, characterized in that it comprises a step of covering with a sealing material including the projecting end of the tape .

  The tape is preferably composed of a plurality of tapes, particularly 2 to 3 tapes, and is arranged in parallel to the tile arrangement direction.

  The present invention relates to a method for attaching tiles to the inner wall surface of a tunnel, in which a plurality of rectangular tiles are arranged in a vertical row with a flexible thin tape attached to the back surface, with gaps corresponding to joints sandwiched between each other. The strip-shaped tile sheet is formed, and the formed tile sheet is attached so that the back surface of the tile adheres to the adhesive application surface formed on the inner wall surface of the tunnel.

  Therefore, a flexible thin tape is attached to the back of the tile, and the tiles are arranged in a vertical line with the gaps corresponding to the joints sandwiched between each other. Therefore, many tiles are placed on the curved surface of the tunnel inner wall having a curvature. It becomes easy to perform a bonding operation by arranging them in the vertical direction with a uniform separation, and the number of man-hours in the tile attaching work can be reduced and the number of workers can also be reduced.

  In addition, the tape has a protruding end that protrudes by a predetermined length from one end in the tile arrangement direction of the tile sheet, so that the protruding end of the tape is fixed to the inner wall surface of the tunnel with a joint material or a sealant. It is possible to effectively prevent the tile from peeling off or falling.

  Also, by arranging multiple (2-3) tapes parallel to the tile arrangement direction, when the tile sheet is supported in the vertical direction and bonded to the tunnel inner wall surface, the tile sheet is prevented from shaking left and right. Thus, the tile sheet can be easily positioned.

The top view of a tile used for embodiment of this invention, a back view, and an expanded sectional view are shown. The top view and partial expanded sectional view of an example of the tile-sheet shaping | molding die frame used for embodiment of this invention are shown. FIG. 3 is a plan view and a partially enlarged sectional view showing a state in which a plurality of tiles are fitted into the tile sheet forming mold shown in FIG. 2 and a tape is attached to the back surface of the tile. It is a top view which shows an example of the tile sheet | seat shape | molded by the tile sheet forming mold shown in FIG. It is a top view which shows the other example of the tile sheet shape | molded by the tile sheet forming mold shown in FIG. It is explanatory drawing which shows the condition which affixes a tile sheet | seat on the tunnel inner wall surface in embodiment of this invention. It is explanatory drawing which shows the condition which applied the joint material and the sealing material to the tile sheet in embodiment of this invention.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. The present invention is not limited to the embodiments.
1A is a top view of a tile used in the embodiment of the present invention, FIG. 1B is a back view of the tile shown in FIG. 1A, and FIG. 1C is A in FIG. -A cross-sectional view taken along arrow A is shown. As shown in these drawings, the tile 2 used in this embodiment is a porcelain tile having a rectangular shape of 195 mm × 96 mm and a thickness t = 7 mm.

  Then, on the back surface of the tile 2, as shown in FIGS. 1B and 1C, seven elongated projections parallel to the longitudinal direction and having a height of about 0.5 to 1 mm are formed. .

FIG. 2 (a) is a plan view showing an example of a tile sheet forming mold used in the embodiment of the present invention, and FIG. 2 (b) is an enlarged sectional view taken along the line BB in FIG. 2 (a).
As shown in these drawings, the tile sheet forming form 5 is made of rectangular wood or metal, and has tile positioning recesses 6 for accommodating and positioning a plurality of tiles 2 shown in FIG. Prepare.

  Further, the tile positioning recess 6 has a depth equivalent to the thickness t of the tile 2 (in this embodiment, t = 7 mm), and its bottom surface is Teflon (registered) in order to improve the releasability of the tile 2. Trademark) coating is applied.

  Note that the tile sheet forming form 5 shown in FIG. 2 has a maximum of 11 tiles 2 arranged in a vertical row, and the joint gaps corresponding to the horizontal joints 8 (FIG. 6) are arranged in each tile 2. The tile sheet 1 provided between them is obtained.

  FIG. 3A shows a state in which a maximum of 11 tiles 2 are fitted into the tile positioning recesses 6 of the tile sheet forming mold 5 shown in FIG. FIG. 3B is a cross-sectional view taken along the line CC of FIG. 3A, and FIG. 4 is a top view showing the tile sheet 1 formed in the embodiment of the present invention.

  FIG. 5 is a view corresponding to FIG. 4 showing another embodiment of the present invention, FIG. 6 is an explanatory view showing a situation in which a tile sheet is attached to a tunnel wall surface in the embodiment of the present invention, and FIGS. ) Is an explanatory diagram showing a situation where a joint material is applied to the joint gap of the tile sheet 2 and a sealing material is applied to the upper end portion of the tile sheet 2.

  Based on these drawings, the tile sheet attaching method in the embodiment of the present invention will be described.

  First, in the factory, the tile sheet forming mold 5 shown in FIG. 2 is installed on a suitable work table. Then, the tiles 2 (FIG. 1) are fitted into the tile positioning recesses 6 with the back surface (uneven surface) facing up as shown in FIG. 3, and arranged in one row.

  Thereby, in this embodiment, a lateral joint gap 8a (FIG. 4) of 4 mm is formed between the tiles 2.

  Next, as shown in FIG. 3, two tapes 3 are affixed to the back surface of the tile 2 symmetrically with an interval of 135 mm in the arrangement direction (vertical direction) of the tile 2. In this embodiment, a PET (polyethylene terephthalate) resin film having a thickness of 0.2 mm and a width of 10 mm is used for the tape 3.

  And after applying UV resin (ultraviolet curable resin) as an adhesive material in advance to the tape application planned position on the back surface of each tile 2, the tape 3 is brought into close contact with the UV resin application portion of the tile 2, and then the tape. The UV resin is cured by irradiating ultraviolet rays through 3.

  In addition, when the two tapes 3 are affixed on the back surface of the tile 2, each tape 3 has a tape protruding end portion 3a protruding from the front end in the longitudinal direction when the tile sheet 1 is completed as shown in FIG. Provided. The protruding length of the tape protruding end 3a is 4 to 3 mm including the lateral joint gap 8a.

  As described above, when the adhesive treatment of the tape 3 to the tile 2 is completed, the 11 tiles 2 connected by the tape 3 are taken out from the tile sheet forming form 5. Thereby, the tile sheet 1 shown in FIG. 4 is completed.

In addition, although the two tapes 3 are used for the tile sheet 1 shown in FIG. 4, as shown in FIG. 5, the tile sheet 1 using the three tapes 3 is prepared as shown in FIG. Also good.
Moreover, although 11 tiles 2 are used in the tile sheet 1 shown in FIGS. 4 and 5, the length of the tile sheet 1 can be arbitrarily set by increasing or decreasing the number of tiles 2 used as necessary. Can be adjusted.
In this embodiment, a tile sheet 1 created using ten tiles is used as a “short tile sheet 1” as will be described later.

  As shown in FIG. 6, the inner wall of the tunnel for a highway 2 lane, which is an example of this embodiment, is an upper tile that extends parallel to the upper side of the step of the supervisor passage 13 as shown in FIG. 6. A pasting area 14a and a lower tile pasting area 14b are provided.

  The upper tile attaching area 14a has a width of 1000 mm and a radius of curvature of 5300 mm, and the lower tile attaching area 14b has a width of 1100 mm and a radius of curvature of 7950 mm. Note that an adhesive for pasting the tile sheet 1 is applied to the upper tile pasting area 14a and the lower tile pasting area 14b in advance in a previous step.

Therefore, first, the tile sheet 1 composed of 11 tiles is carried into the tunnel 4 shown in FIG. 6 together with the short tile sheet 1 composed of 10 tiles.
Next, as shown in FIG. 6, a short tile sheet 1 is placed in the longitudinal direction on the upper tile pasting area 14a of the tunnel inner wall 4a with reference to the brushed line 12 drawn on the tunnel inner wall surface 4a in the previous step. Are attached in the horizontal direction so that the back surface of the tile 2 adheres while supporting the tape so that the tape protruding end portion 3 faces upward.

  At this time, a joint gap (5 mm) corresponding to the vertical joint 9 (FIG. 6) is secured between the tile sheets 1 by the operator.

  Next, with reference to the lower end of the tile sheet 1 attached to the upper tile attaching area 14a, the tile sheet 1 is supported on the lower tile attaching area 14b so that the tape protruding end 3 is on the upper side. In the same manner as described above, the tapes are sequentially pasted in the horizontal direction.

  In the tile sheet attaching step, the tile sheet 1 attached as described above is pressed against the tunnel inner wall surface 4a using a vibrator gun (commercially available), and the tile 2 is bonded to the tunnel inner wall surface 4a. The area is increased and the adhesive strength between the two is enhanced.

  When the pasting operation of the tile sheet 1 is completed, after a predetermined curing period, in order to form the horizontal joint 8 and the vertical joint 9 shown in FIG. It is painted as shown in FIG. 7 using a trowel.

  Moreover, as shown in FIG.7 (b), the sealing material 11 is apply | coated to the upper end of the tile sheet 1 affixed on the upper adhesion area | region 14a. Here, white cement is used as the joint material and a polyurethane-based sealing agent is used as the sealing material.

  Thus, the tape protruding end 3a protruding from the upper end of the tile sheet 1 attached to the lower application region 14b is fixed to the tunnel inner wall surface 4a by the joint material 10 as shown in FIG. The tape protruding end 3a protruding from the upper end of the tile sheet 1 bonded to the upper bonding region 14a is fixed to the tunnel inner wall surface 4a by the sealing material 11 as shown in FIG. The peeling of 1 and the falling of the tile 2 are effectively prevented.

DESCRIPTION OF SYMBOLS 1 Tile sheet 2 Tile 3 Tape 3a Tape protrusion edge 4 Tunnel 4a Tunnel inner wall surface 5 Tile sheet molding form 6 Tile positioning recessed part 7 Protrusion 8 Lateral joint 8a Lateral joint gap 9 Vertical joint 10 Joint material 11 Sealing material 12 Inscription line 13 Monitor passage 14a Upper pasting area 14b Lower pasting area

Claims (3)

In the step of attaching tiles to the inner wall surface of the tunnel, a plurality of square tiles are attached in a vertical row with a flexible thin tape attached to the back surface and a gap corresponding to the joints sandwiched between each other. Forming a sheet and forming a protruding end of the tape protruding a predetermined length from one end in the tile arrangement direction of the tile sheet; and an end having the protruding end of the tape. There and along the tiling direction to overlie the direction of gravity, a step of attaching to the backside of the tile is bonded to the adhesive coated surface formed on the tunnel inner wall surface, each tile of the tile sheet pasted a step of pressing using a vibrator gun towards the tunnel wall, the sealing material to the end with the protruding end of the tape with a protruding end of the tape pasted stylesheet Tile Paste method of tunnel wall, characterized in that it comprises starts selling process. The tape is made of a plurality of tapes, tiled with method of tunnel wall of claim 1 Symbol placement are arranged parallel to the tile array direction. The said tape consists of 2-3 tapes, The tile sticking method of the inner wall surface of a tunnel as described in any one of Claims 1-2 characterized by the above-mentioned.

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