JP6301585B2 - Fall prevention mechanism of tile panel for tunnel wall covering. - Google Patents

Description

  The present invention relates to a fall prevention mechanism for a tunnel wall covering tile panel, and more specifically, a panel drop that prevents a tile panel from falling immediately even if an anchor for fixing the tile panel to the wall surface comes off. This relates to a prevention structure.

  Although a structure for preventing the fall of the tunnel wall covering tile panel is not proposed, for example, a mechanism that prevents the sound insulation board or the like of the elevated road from falling immediately after it is detached from the column is disclosed in, for example, JP-A-2002-227141. It is described in.

  A number of sound insulation plates are arranged on the left and right sides, but usually they are fitted in, for example, dents in an H-shaped steel column provided upright at both ends of each sound insulation plate. However, it falls when the sound insulation board is removed from the column due to a strong wind or earthquake, or it scatters when it is hit by the wind. In order to avoid such a situation, in Japanese Patent Application Laid-Open No. 2002-227141 as Patent Document 1, the sound insulating plate is moored with a wire rope so as not to be separated from the support column.

  Since the sound insulation board is usually a one-stage structure, the wire rope is stretched so that it is almost horizontal on the front, back, or both sides of the sound insulation board, and a securing tool is provided on the sound insulation surface at an appropriate location. It is assumed that there is flexibility. Since the end of the rope is fixed to the support column, the sound insulation plate will not be separated from the support column as long as the position of the support column is maintained.

JP 2002-227141 A

  A tile panel that covers a tunnel wall is formed by bonding a large number of tiles arranged vertically and horizontally on a substrate, as described in, for example, JP-A-2001-73531. In order to contribute to improving the aesthetics of the concrete wall of the vehicle traffic tunnel and facilitating washing with water, such tile panels are arranged so that a large number are continuously arranged in the vertical and horizontal directions. As described below, it is fixed directly or indirectly by a concrete anchor (an anchor for panel support).

  To attach the tile panel to the wall, place an anchor at the intersection of the tile joints (the gap created between the tiles) (direct tension method) or support it with the protruding receiving surface of the mounting bracket anchored to the wall In any case, stainless steel is used as the concrete anchor, and consideration is given to the suppression of rust generation. However, the deterioration of the anchor and the wall surface can be caused by the passage of years, etc. Even if the anchor does not lose its fixing ability at the same time, if the anchoring effect is reduced at a certain point, the burden of other anchors Will increase. If the anchor is loosened or pulled out in a chain reaction, the tile panel falls. This does not have to be scattered on the road surface.

  However, when the wire rope is suspended from the tile panel, a hook or eye for hooking or passing the wire rope is required, and it is provided on the back surface of the tile panel. This is because it is difficult to attach obstacles or foreign objects to the tile surface in order to maintain the light reflecting function of the headlamp. Since there is no support as in the case of the sound insulation board, it is virtually impossible to stretch the rope horizontally.

  The present invention has been made in view of the above-mentioned problems. The purpose of the present invention is to install a tile panel composed of tiles arranged in rows and columns and a substrate holding the tiles on a tunnel wall in a conventional manner, such as direct tension or floating tension. However, when the support structure fails, the tile panel should not fall or scatter, and even if the wall support structure is damaged, the tile panel dropping mechanism will not be subjected to a sudden load. Thus, it is an object to provide a fall prevention mechanism for a tunnel wall covering tile panel capable of slowing the inclination and falling of the tile panel and delaying the progress of destruction of the tile panel itself.

The present invention comprises a tile panel attached to a tunnel wall by direct or floating tension, and a tile on which a large number of tile panels are bonded side by side on the upper surface thereof, and the posture of the tile panel attached to the tunnel wall is always Is applied to a tunnel wall covering structure maintained by a panel support anchor placed in the tunnel wall. Referring to FIG. 1, the characteristic feature is that a wire rope 6 that extends by being fitted to the joint of the tile panel 2 is inserted so as to come out from the back or front at the joint intersection 2 k, and the wire rope that has come out to the front is The wire rope that has come out on the back along the vertical joint is wound on the back of the panel, the wire rope 6 that has come out to the front is along the vertical joint 2t, and the wire rope 6 that has come out on the back is twisted on the back of the panel. In the lower part of the joint, open and closed loops 7A and 7B formed by folding at the intersection 2k in the joints of the other rows are formed, and the end 6e thereof is secured by a holding tool 8 fixed to the tunnel wall 1. It is that you are.

  According to the present invention, since the wire rope is hung on the tile panel, the wire rope prevents the panel from dropping even if the function of the panel support anchor forming the tunnel wall mounting structure of the tile panel is remarkably deteriorated. In addition, the loop with a space on the back of the substrate not only avoids a sudden fall, but also facilitates the gradual increase of the load acting on the lifting device, thereby delaying the drop of the tunnel wall of the lifting device. Good.

  Since the wire rope is crushed using the dents formed by the tile joints, the presence of the wire rope hinders the reflection of the headlamps and promotes dirt on the glossy surface due to water drops etc. traveling along the tile surface. I will not let you. The wire rope runs along the joints on the front of the tile panel and crawls the back of the panel to the next predetermined joint intersection, so the wire rope can be inserted as if the tile panel was sewn. The stability of the suspension of the tile panel can be ensured for a long time.

It is a fall prevention mechanism of the tile panel for tunnel wall surface coverings which concerns on this invention, Comprising: The case where it is a direct tension multiple panel suspension form is a whole block diagram. The block diagram of an example of the hanging tool used for the fall prevention mechanism of the tile panel for tunnel wall surface coating, and its component. The suspension form at the time of forming a closed loop with a wire rope, and the whole block diagram at the time of making a return | turnback rope follow a joint or making a board | substrate back bend. FIG. 3 is an overall configuration diagram in a case where a plurality of panels are directly stretched and a backing spacer is employed. FIG. 3 is an overall configuration diagram in a case where a plurality of panels are suspended directly and mortar is adopted as a backing spacer. The whole block diagram which showed the case of the multiple panel suspension form of floating tension. The whole block diagram which showed the case of the single panel suspension form of floating tension.

  Below, the fall prevention mechanism of the tile panel for tunnel wall surface coatings concerning the present invention is explained in detail based on the drawing showing the embodiment. FIG. 1 is a case of a directly-pending multiple panel suspension form. A tile panel 2 attached to the tunnel wall 1 is composed of a substrate 3 and tiles 4 which are bonded in a large number in the vertical and horizontal directions on the upper surface thereof. The posture of the tile panel 2 attached to the tunnel wall 1 is always maintained by the panel support anchor 5 placed on the tunnel wall (see the end view taken along the line AA in the figure).

  In such a wall surface sticking mechanism of the tile panel 2, the wire rope 6 that extends by being fitted to the vertical joint 2 t of the tile panel 2 is inserted so as to come out to the back or front at the joint intersection 2 k. The wire rope 6 is leveled toward the joints in the other rows at the lower portion, and is folded back upward at a desired intersection 2k. The open loop 7A formed thereby has a space 9 in the tension. If the rope is left loose in this way, even if an abrupt force is applied to the wire rope 6, the tension of the wire rope 6 can be prevented from increasing rapidly until the clearance disappears. Needless to say, the space is taken behind the substrate. The end 6e of the loop located at the upper end is secured by a lifting tool 8 fixed to the tunnel wall. The hanging tool 8 will be described in more detail with reference to FIG.

  In the central diagram of FIG. 1, four color-coded tile panels 2 are drawn in a state of being attached to the tunnel wall 1. The wire rope 6 is arranged along the vertical joint 2t as in the right half of the wire rope 6, but is intentionally removed from the joint in the left half of the wire rope 6 so that it can be easily grasped whether it is the back or front of the insertion. . The rope of the solid line portion 6j is along the joint formed on the front surface of the tile panel 2, and the broken line portion 6h indicates that the rope turns around the back surface of the tile panel 2. The wire rope 6 sews only the substrate 3 so that it can be grasped from an exaggerated view of the left end thickness in FIG. 1 and a lower view.

  The wire rope 6 which is thicker and U-shaped in the center figure forms one open loop 7A. The left wire rope forms another open loop 7Aa (formed by a thinly drawn wire rope), but its left half is not drawn. Similarly, the right wire rope forms another open loop 7Ab, but its right half is not drawn. According to this open loop, the four adjacent tile panels 2 are connected.

  The hanging tool 8 may be any one as shown in FIG. 2, but in this example, it is composed of a stone-drawn anchor 8A and a bolt clip 8B. The stone pulling anchor has a rope insertion hole 8c in the head, and collects the rope end 6e. The two rope ends coming out of the rope insertion hole are sandwiched and secured by the bolt clip 8B. Incidentally, in the illustrated bolt clip 8B, a groove 8m in the longitudinal direction is cut in the screw portion of the bolt to secure a rope accommodating space, and when the nut 8n is screwed in, the two rope ends are firmly pressed by the bolt head 8h. Of course, not only such a configuration but also a known clip can be used. It goes without saying that known alternatives can also be used for the stone anchor. In addition, when the tile panel 2 is directly stretched as shown in FIG. 1, there is almost no space for installing the lifting tool, and therefore, the installation is performed at a position 10 higher than the upper edge of the tile panel 2 positioned above.

  As described above, the wire rope 6 is crushed by utilizing the recess formed by the joints of the tile 4, so that the presence of the wire rope 6 hinders the reflection of the light from the headlight of the car. It does not contribute to dirt on the tile glossy surface due to water drops traveling on the surface. In the table of the tile panel 2, the wire rope 6 runs along the vertical joint 2 t and crawls the panel back to the next predetermined joint intersection 2 k, so that the wire rope 6 is inserted as if the tile panel 2 was sewn. Therefore, it is possible to maintain the stability of the suspension of the tile panel 2 by the wire rope 6 for a long time.

  Thus, since the wire rope 6 supports the substrate 3 from inside and outside, it is necessary that the substrate 3 be able to withstand the wire rope 6. Achieving a suspended form that is avoided. Note that the wire rope 6 can be kept out of sight by applying a joint agent to the joint where the wire rope 6 crawls.

    FIG. 3 shows a suspension form when a closed loop is formed with a wire rope, and a case where the entire configuration is put on the right side and the entire configuration when the folded rope is put along the horizontal joint 2y is put almost horizontally on the back of the substrate. Shown on the left (left is intentionally drawn away from the joint as in FIG. 1 to make it easier to grasp the position of the wire rope). A wire rope 6 having a U shape with a tip (upper) in the middle view forms one closed loop 7B. In the case of the closed loop 7B, the upper and lower tile panels 2 and 2 are connected. The lower end portion of the wire rope 6 is routed along the back of the substrate in the left figure, but is arranged along the horizontal joint 2y in the right figure.

  FIG. 4 shows an overall configuration when a backing spacer 12 is employed in the form of a plurality of panels that are directly stretched. The backing spacer is, for example, a long wooden plate 12A and has a thickness of about 10 mm. This is for floating the tile panel 2 from the wall surface so that water droplets such as ground water traveling along the tunnel wall do not easily reach the tile panel 2. The panel support anchor 5 is struck through a wooden board extending in the vertical direction. As can be seen from the exaggerated thickness diagram on the left in the figure, the wire rope 6 that runs over the back side of the substrate 3 passes through the upper surface of the wooden board 12A.

  Each of the wooden boards 12A is preliminarily leaned against the tunnel wall at a predetermined height using a support (not shown). The tile panel 2 on which the wire rope 6 is sewed is pressed against the wooden board, and the anchor is struck at the joint intersection 2k of the part that penetrates the wooden board, so that the whole is fixed. The wire rope 6 has a diameter of 1.5 mm, for example, and does not affect the posture of the tile panel 2 even if it is positioned between the substrate 3 and the wooden board.

  Although FIG. 5 is also a directly stretched multiple panel suspension form, a mortar scale 12B is adopted as the backing spacer 12. The mortar height extends horizontally. All of the panel support anchors 5 are struck through the mortar plate 12B. As can be seen from the figure on the left side of the figure, the wire rope 6 that runs over the back side of the substrate 3 passes through the top surface of the mortar. In addition, the mortar pile is directly applied to the tunnel wall in advance by a troweling operation. The mortar as a backing spacer may extend in the vertical direction if possible, and the placement of the panel support anchor may be the same as in the case of a wooden board. Incidentally, when the backing spacer is a wooden board as shown in FIG. 4, it may extend in the horizontal direction unlike the figure. What is necessary is just to select the kind and attitude | position of a backing spacer suitably according to the condition of the tunnel wall in the position, such as some leaks.

  FIG. 6 shows the case of a suspended multi-panel suspension configuration. As shown on the right side of the figure, the floating tension is to fix the mounting bracket 14 to the tunnel wall 1 via the anchor 5. An example of the shape and function is disclosed in Japanese Patent Application Laid-Open No. 2001-73531, and detailed description thereof is omitted. Since the tile panel 2 is installed at a position separated from the tunnel wall, for example, 50 mm or 100 mm, the above-described backing spacer is not employed. Since the space 15 is secured on the back surface of the tile panel 2 in the case of this floating tension, a position 16 lower than the upper edge of the tile panel 2 located above can be seen by comparing the left two in the figure. It can also be set up.

  FIG. 7 shows a suspending single panel suspended form. In any of the previous examples, the wire rope 6 is connected to the adjacent tile panels 2 and 2, but as shown in this figure, the wire rope can be hung only by hanging one tile panel 2. . Also in this case, it goes without saying that the lifting tool 8 for each tile panel 2 may be above or below the upper edge of each tile panel 2.

  In any example, since the wire rope 6 is hung on the tile panel 2, even if the function of the panel support anchor 5 forming the tunnel wall mounting structure of the tile panel 2 is remarkably deteriorated, the wire rope 6 is not attached to the panel. Suppress the fall. In addition, the loop with a sufficient tension not only avoids a sudden fall, but also facilitates the gradual increase of the load acting on the lifting tool 8 to delay the drop of the tunnel wall of the lifting tool. Even if the deterioration of the function of the panel support anchor 5 and the deterioration of the anchor used in the lifting tool 8 may be in tune, the probability of the occurrence of anchor dropout is extremely low because a large number of them are used. Become. This is even more true if the anchor type or dimensions are different.

  DESCRIPTION OF SYMBOLS 1 ... Tunnel wall, 2 ... Tile panel, 2t ... Vertical joint, 2y ... Horizontal joint, 2k ... Joint joint part, 3 ... Board | substrate, 4 ... Tile, 5 ... Anchor for support, 6 ... Wire rope, 6e ... End of rope , 7A ... open loop, 7B ... closed loop, 8 ... hanging tool.

Claims (1)

The tile panel attached to the tunnel wall by direct tension or floating tension is composed of a board and tiles that are bonded side by side in the vertical and horizontal directions on the upper surface, and the posture of the tile panel attached to the tunnel wall is always the tunnel wall In the tunnel wall covering structure maintained by the anchoring panel support anchor, the wire rope that extends by being fitted to the vertical joint of the tile panel was inserted so as to come out from the back or front at the joint intersection, and then pulled out to the front The wire rope runs along the vertical joint, and the wire rope that passes through the back is wound on the back of the panel. At the lower part of the wire rope, an open or closed loop is formed by folding at the intersection of the joints in the other rows. A tile for covering a tunnel wall, characterized in that an end portion is secured by a holding fixture fixed to the tunnel wall. Panel of fall prevention mechanism.