Repair panel for tunnel shoulder structure and repair method

Abstract

To provide a repair panel for a tunnel roadside structure and a repair method that allow easy installation work of the panel.SOLUTION: A repair panel 31 used for an inspection road 3 having a vertical wall surface provided on a roadside of a roadway 2 in an existing tunnel, and filled with grout material between the vertical wall surface and itself comprises a panel body 32 made of high strength fiber reinforced mortar. Since the panel body 32 integrally includes a vertical surface portion 33 that covers a repaired vertical wall surface 5A side, and a leg portion 34 that is provided at a lower part of the vertical surface portion 33 and protrudes from an outer surface side of the vertical surface portion 33, and the leg portion 34 is integrally provided at the lower part of the vertical surface portion 33 that covers the repaired vertical wall surface 5A, the panel body 32 can be easily installed using the leg portion 34.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a repair panel and a repair method for a tunnel shoulder structure. [Background technology]

[0002] Conventionally, tunnel inspection roads, which are road shoulder structures inside tunnels, have had tiles attached to their exterior surfaces peel off due to aging, and where handrails are installed at the top end of the inspection road, water seeps into the interior through the handrail support post mounting holes, causing the reinforcing bars to corrode and requiring repairs. In such cases, a known repair method involves chipping away the concrete on the side where the tiles have peeled off as needed, placing a tile panel at a distance from the side, fixing the tips of fixing rods to the side to support the tile panel, and filling the space between the side and the tile panel with backfill material (see, for example, Patent Document 1).

[0003] In the above-mentioned conventional technology, the tip of the fixed rod is fixed to the side of the concrete, the tile panel is attached to the side, and the space between the side and the tile panel is filled with backfill material, which creates the problem of time-consuming installation of the tile panel.

[0004] In response to this, there is a repair method for the reinforced concrete vertical walls of tunnel guard passages (for example, Patent Document 2), which includes a first step of removing the concrete from the top end of the reinforced concrete vertical wall, a second step of chipping off the cover on the side of the reinforced concrete vertical wall, a third step of arranging a plurality of UFC panels that can also be used as formwork and have openings at their upper ends so that they are adjacent to each other at a specified distance from the chipping surface, and a fourth step of injecting anti-corrosion agent-containing non-shrink mortar into the gap between the UFC panels that can also be used as formwork and the chipping surface, and the use of panels improves workability on site.

[0005] In the above repair method, the bottom of the panel is fixed to the road surface with an L-shaped metal fitting, but the panel cannot stand on its own until it is fixed, so the top of the panel must be fixed to an anchor on the vertical wall with a lip groove steel, or the panel must be supported until the bottom is fixed, which can make the installation work complicated. Also, if a lip groove steel is installed on the road-facing surface of the panel or an L-shaped metal fitting is installed at the bottom of the panel, it may interfere with vehicle traffic. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-148825 [Patent Document 2] Japanese Patent Publication No. 2020-60012 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0007] SUMMARY OF THE INVENTION The present invention is intended to solve the above problems and has as its object to provide a repair panel for a tunnel shoulder structure and a repair method that allow panel installation work to be easily performed. [Means for solving the problem]

[0008] The invention of claim 1 is a repair panel used for a road shoulder structure having a vertical wall surface provided on the road shoulder of a road in an existing tunnel, and in which backfill material is filled between the vertical wall surface and the panel body, the panel body being made of a fiber-reinforced cement-based material, and the panel body being integrally provided with a vertical surface portion covering the vertical wall surface side and legs provided at the bottom of the vertical surface portion and protruding on the outer surface side of the vertical surface portion. A through hole is drilled in the leg portion to insert a mounting anchor member protruding from the panel leg mounting location of the existing tunnel, and the leg portion has a horizontal leg lower surface and a leg inclined outer surface that slopes diagonally upward from the center of the road toward the outer surface of the vertical surface portion, and is shaped so that it becomes thicker from the center of the road toward the vertical surface portion. A mounting recess is formed in the leg inclined outer surface, and the through hole is drilled in the bottom surface of the mounting recess. A fixing device is attached to the mounting anchor member inserted into the through hole, and the leg is attached to the panel leg mounting location by this fixing device, and the upper end of the mounting anchor member and the fixing device are stored in the mounting recess. It is characterized by:

[0009] Claim 2 The invention is side part The present invention is characterized in that longitudinal ridges are provided adjacent to each other in the longitudinal direction of the road on the outer surface of the road, and water channels are provided between these ridges.

[0010] Claim 3 The invention is side part The upper part of the road shoulder structure is provided with a connecting arm portion that connects to a fixing device provided at the top end of the road shoulder structure.

[0011] Claim 4 The invention is side part The upper edge of the water supply pipe is provided with a recess corresponding to the water channel.

[0012] Claim 5 The invention is 1st article The vertical side part It is characterized by having an eye-guiding paint applied to the exterior surface.

[0013] Claim 6 The invention is 1 The repair panel described above is used, and backfill material is filled between the vertical wall surface. Ruko It is characterized by the following.

[0014] Claim 7 The invention is 3 In a method for repairing a tunnel shoulder structure, in which the repair panel described above is used and backfill material is filled between the vertical wall surface and the panel, the connecting arm portions of the panel bodies adjacent in the longitudinal direction of the road are fixed to the top surface by the fixing device.

[0015] Claim 8 The invention is characterized in that reinforcing bars are buried in the panel leg attachment locations, a plurality of through holes are drilled on both sides of the leg in the road length direction, close to each other in the road length direction, a mounting hole is drilled in the panel leg attachment location corresponding to one of the plurality of through holes, the mounting anchor member is attached to this mounting hole, the mounting anchor member is inserted into the through hole, the fixing device is attached to the mounting anchor member, and the leg is attached to the panel leg attachment location.

[0016] Claim 9The invention is characterized in that the panel leg attachment point is a gutter having an inclined upper surface, a height adjustment layer with a flat upper surface is provided on the inclined upper surface, and the leg is placed on this height adjustment layer.

[0017] Claim 10 The invention is characterized in that the panel leg attachment location is a gutter having an inclined upper surface, and after the inclined upper surface is chipped, the attachment anchor member is attached to the chipped inclined upper surface, a height adjustment member is inserted into the attachment anchor member, and the leg is placed on the height adjustment member. [Effects of the Invention]

[0018] According to the configuration of claim 1, the legs are integrally provided at the lower part of the vertical surface portion that covers the vertical wall surface, so that the panel body can be easily installed using the legs.

[0019] Claim 1 According to this configuration, the panel body is installed so that the mounting anchor members are inserted into the through holes, and the legs are fastened by the anchors. Existing tunnel of panel leg It can be attached to the mounting location.

[0020] Furthermore, according to the configuration of claim 1, the leg portion has excellent strength, and furthermore, the upper end of the mounting anchor member and the fixing device can be stored in the mounting recess, so they do not protrude from the outer surface of the panel body.

[0021] Claim 2 According to the configuration, side part The water flowing down along the outer surface can be collected in the water channel and efficiently drained.

[0022] Claim 3 According to the configuration of (1), by connecting the connecting arm portion provided on the panel body to the fixing device, the upper part of the panel body can be fixed to the road shoulder structure.

[0023] Claim 4 According to this configuration, water running down the top surface of the road shoulder structure flows vertically from the recess. side part It flows down onto the outer surface.

[0024] Claim5 According to the configuration of (1), there is no need to paint the line-of-sight guiding paint on-site.

[0025] According to the configuration of claim 6, Backfilling material can be filled between the panel body and the vertical wall surface.

[0026] According to the configuration of claim 7, the connecting arms of adjacent panel bodies can be fixed to the top end surface by a common fixing device.

[0027] Claim 8 According to the configuration of (1), when drilling the mounting hole at the mounting location of the panel leg, if the mounting hole hits a reinforcing bar, the drilling position of the mounting hole can be changed and the mounting anchor member can be attached.

[0028] Claim 9 According to the configuration of (1), by providing a height adjustment layer on the inclined upper surface, the legs can be placed on the height adjustment layer, which has a flat upper surface.

[0029] Claim 10 According to this configuration, after chipping off the inclined upper surface, the height adjustment member is inserted into the mounting anchor member, and by adjusting the height of the height adjustment member, the panel body can be installed with the height of the legs aligned. [Brief explanation of the drawings]

[0030] [Figure 1] 1 is a cross-sectional view of one of the existing road shoulder structures showing a first embodiment of the present invention. [Figure 2] FIG. 10 is a cross-sectional view of the other existing road shoulder structure. [Figure 3] FIG. 10 is a perspective view of the same as above, in which a vertical wall surface of the road shoulder structure has been removed by a predetermined thickness. [Figure 4] FIG. 10 is a perspective view of the same as above, showing the state in which anchor means are attached to the panel leg attachment locations and a height-adjusting mortar layer is formed. [Figure 5] FIG. 10 is a perspective view illustrating the installation of the repair panel. [Figure 6] FIG. 10 is a perspective view of a main part of the leg of the repair panel. [Figure 7] FIG. 10 is a perspective view of the essential parts of the leg of the repair panel, showing the leg fixed to the panel leg attachment location. [Figure 8] FIG. 10 is a perspective view of the repair panel with a fully threaded bolt inserted therein. [Figure 9] FIG. 10 is a perspective view of the same as above, showing the state in which the pressing structure is attached to the repair panel. [Figure 10] FIG. 10 is a perspective view of the same as above, showing a state in which the fully threaded bolt is cut. [Figure 11] FIG. [Figure 12] FIG. 10 is an explanatory diagram of the grip anchor. [Figure 13] FIG. 10 is a cross-sectional view of the positioning means and its surroundings. [Figure 14] FIG. [Figure 15] FIG. 10 is a perspective view showing a state in which a repair panel according to a second embodiment of the present invention is installed. [Figure 16] FIG. 10 is a cross-sectional plan view of the repair panel with the retaining structure attached. [Figure 17] FIG. 10 is a perspective view of a repair panel showing a third embodiment of the present invention. [Figure 18] FIG. [Figure 19] FIG. 10 is a perspective view of the same after repair. [Figure 20] FIG. 10 is a perspective view of the main part after the panel leg attachment portion has been chipped off. [Figure 21] FIG. 10 is a perspective view of the main part illustrating the installation work of the repair panel. [Figure 22] FIG. 10 is an explanatory perspective view of the main part illustrating the installation work of the repair panel. [Figure 23] FIG. 10 is a perspective view showing a fixing structure of the connecting arm portion using a fixing device. [Figure 24] FIG. 10 is a perspective view showing Example 4 of the present invention after repair. [Figure 25] FIG. 10 is a perspective view of the upper part of the inspection path after repair. DETAILED DESCRIPTION OF THE INVENTION

[0031] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the embodiments described below do not limit the content of the present invention as defined in the claims. Furthermore, not all of the configurations described below are necessarily essential requirements of the present invention. [Example]

[0032] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. FIGS. 1 to 14 show an embodiment 1 of the present invention. In an existing tunnel 1, road Existing road shoulder structures, inspection paths 3 and 4, are provided on both sides of the roadway 2. These inspection paths 3 and 4 have a vertical wall surface 5 in the center of the path, and above this vertical wall surface 5 there is a path 6, which is a flat top surface, and this path 6 is connected to the tunnel side wall 7, which is the inner surface of the tunnel.

[0033] One of the inspection paths 3 has a vertical concrete wall section 13 with multiple pipelines 12, 12... buried on the roadway 2 side on a concrete foundation 11 serving as a foundation, and tiles 14 serving as surface members are provided on the vertical wall surface 5, which is the outer surface of this vertical concrete wall section 13. In addition, between the vertical concrete wall section 13 and the tunnel side wall 7, a supporting concrete section 16 that supports the pipelines 15 from below, a backfill section 17 filled with backfill material such as sand, and a top concrete section 18 are provided on the concrete foundation 11, and the upper surfaces of the vertical concrete wall section 13 and the top concrete section 18 form the passage 6, which serves as the top surface.

[0034] A substantially inverted U-shaped reinforcing bar 19 is buried in the vertical wall concrete portion 13 of one of the inspection roads 3 so as to surround the plurality of pipelines 12, and this reinforcing bar 19 consists of a horizontal reinforcing bar 19Y at the top of the pipelines 12 and vertical reinforcing bar portions 19T, 19T that are bent on both sides of this horizontal reinforcing bar portion 19Y and then extended downward, and the lower ends of these vertical reinforcing bar portions 19T, 19T on both sides are buried in the concrete foundation 11. Furthermore, a plurality of the reinforcing bars 19 are arranged at intervals in the lengthwise direction of the road, and a plurality of longitudinal reinforcing bars 20 are arranged along the lengthwise direction of the road along these plurality of reinforcing bars 19, 19.

[0035] The other inspection path 4 has a vertical wall concrete portion 13A provided along the tunnel side wall 7, and this vertical wall concrete portion 13A has tiles 14 provided on the vertical wall surface 5, which is the outer surface of this vertical wall concrete portion 13A, and the upper surface of this vertical wall concrete portion 13A is the top surface 6A. Furthermore, multiple pipes 12A, 12A and reinforcing bars 19A are buried in the vertical wall concrete portion 13A. Furthermore, the top surface 6A of the other inspection path 4 is formed to have a smaller width in the road width direction than the passage 6, which is the top surface of one inspection path 3.

[0036] A circular gutter 21 is provided between the lower ends of the inspection paths 3, 4 and the roadway 2. The circular gutter 21 is made of reinforced concrete with reinforcing bars (not shown) arranged inside, and its upper surface 22 is provided slightly lower than the upper surface of the roadway 2. The circular gutter 21 also has a circular water passage 23 inside, and a vertical groove-shaped water collection port 24 installed vertically in the center of the upper surface 22 communicates with the water passage 23.

[0037] The upper surface portion 22 is provided with the water collection port 24. Existing The central and outer sides of the tunnel 1 are divided into an upper surface central side portion 22C and an upper surface outer portion 22S, and these upper surface central side portion 22C and upper surface outer portion 22S are inclined slightly downward toward the water collection port 24. The circular gutter 21 is provided on a foundation 25.

[0038] Further, handrails 27 are provided on the inspection path 3. The handrails 27 are formed by erecting a plurality of posts 28 at intervals in the road length direction on the road side of the passage 6 of the inspection path 3, and connecting the upper parts of the plurality of posts 28, 28... by handrail bars 29 in the road length direction. The posts 28 are provided with a substantially O-shaped bent portion 28A at the center in the height direction so that the upper part is closer to the roadway 2 than the lower end.

[0039] The repair panel 31 used to repair the inspection paths 3, 4 is made of a cement-based material reinforced with fibers, such as high-strength fiber-reinforced mortar or ultra-high-strength fiber-reinforced concrete. The panel body 32 made of high-strength fiber-reinforced mortar integrally comprises a flat vertical surface portion 33 provided on the vertical wall surface 5 and a leg portion 34 provided below the vertical surface portion 33 and protruding toward the center of the tunnel (outside the panel 31) corresponding to the upper surface outer portion 22S. The high-strength fiber-reinforced mortar is made of a fiber-reinforced cement-based high-strength material that does not use coarse aggregate but has high physical properties by mixing in fibers such as high-strength steel fibers or organic fibers.

[0040] Furthermore, the panel body 32 may be made of the high-strength fiber reinforced concrete. In this case, the panel body 32 is made of ultra-high strength fiber reinforced concrete molded into a panel shape. For example, the panel body 32 may be manufactured using the ultra-high strength fiber reinforced concrete specified in the "Guidelines for the Design and Construction of Ultra-High Strength Fiber Reinforced Concrete (Draft)" (hereinafter referred to as the "UFC Guidelines"), or ultra-high strength fiber reinforced concrete having the same physical properties related to mass transfer (air permeability coefficient, chloride ion diffusion coefficient) as those specified in the UFC Guidelines.

[0041] The leg 34 is perpendicular to the inner surface of the vertical surface 33 and has a leg lower surface 34A which is a horizontal installation surface, a vertical leg tip surface 34B provided at the tip of the leg lower surface 34A, and a leg tip surface 34B. 4 The inclined outer surface 33 of the leg is inclined obliquely upward from the upper edge of B toward the outer surface of the vertical surface portion 33. 4 C, and the leg inclined outer surface 3 4C is inclined at about 45 degrees, and the leg 34 is shaped so that it becomes thicker from the leg tip surface 34B on the road center side toward the vertical surface 33 on the road outer side. As an example, the thickness of the vertical surface 33 is about 20 mm, and the thickness of the leg tip surface 34B is also about 20 mm. leg outside slope face 34 C forms an angle of 30 to 60 degrees with respect to the vertical surface portion 33, and in this example, 45 degrees.

[0042] Leg inclination of the leg 34 outside The surface 34C has a plurality of recesses 41, 41A (two recesses) formed on each side, spaced apart in the road length direction, and the two recesses 41, 41A are arranged close to each other on both sides in the road length direction. The recesses 41, 41A have the same shape, and the recess 41 is located closer to the end of the panel 31 in the road length direction (left-right direction of the panel) than the recess 41A.

[0043] The bottom surface 42 of the recesses 41, 41A is parallel to the leg lower surface 34A and has a substantially rectangular shape that is long in the road width direction in a plan view. outside Between the surface 34C and the vertical inner surface portion 43, a vertical inner surface portion 43 is formed vertically on the inner surface side of the panel, and oblique vertical inner surface portions 44, 44 are formed vertically on both sides of the left and right direction of the panel. outside It is formed in the inclined direction of the surface 34C (road width direction).

[0044] A through hole 45 is drilled in the bottom surface portion 42, and a male threaded rod 52 of a bolt anchor 51 serving as anchor means is loosely inserted into this through hole 45, and this male threaded rod 52 is a rod-shaped mounting anchor member. The through hole 45 is elongated in the road width direction (inside and outside the panel). The male threaded rod 52 is inserted into a through hole 59T of a square fixing plate 59 made of metal, and double nuts 60, 60, which serve as locking nuts, are screwed onto the male threaded rod 52, thereby fixing the lower part of the repair panel 31 to the male threaded rod 52.

[0045] As shown in Figure 11, an enlarged head 53 that tapers toward the tip is integrally formed at the tip of the male threaded rod 52. The bolt anchor 51 also has a hollow cylinder 54, at the tip of which a plurality of notches 55 are formed in the length direction of the hollow cylinder to form a plurality of enlarged tip pieces 56. The base end of the male threaded rod 52 is inserted into the tip of the hollow cylinder 54 and set. The maximum diameter of the enlarged head 53 is larger than the inner diameter of the hollow cylinder 54.

[0046] In this case, the male threaded rod 52 of the bolt anchor 51 is usually fixed to the circular gutter 21 by aligning it with the position of the through holes 45, 45 of the recesses 41, 41 at both ends of the panel in the left-right direction. Specifically, a vertical mounting hole 73 is drilled in the upper outer portion 22S of the circular gutter 21 with a drill (not shown), the bolt anchor 51 is inserted into this mounting hole 73, and the base end of the hollow cylinder 54 is driven in with a jig 58 (not shown). This causes the enlarged head 53 to expand the tip enlarged piece 56, and the bolt anchor 51 is fixed to the mounting hole 57 (Figure 4) of the circular gutter 21.

[0047] As described above, bolt anchor mounting holes 73 are generally drilled to align with the through holes 45, 45 of the recesses 41, 41 on both sides. However, there are cases where drilling the mounting holes 73 is not possible due to the rebar in the circular gutter 21. In this case, mounting holes 57 are drilled in the circular gutter 21 to align with the through holes 45, 45 of the central recesses 41A, 41A. In this case, it is sufficient to install a bolt anchor 51 in one of the through holes 45, 45 of a pair of left and right recesses 41, 41A. The possible combinations are left and right recesses 41, 41; left and right recesses 41A, 41; left and right recesses 41A, 41; and left and right recesses 41A, 41A. As shown in FIG. 7, grout material 96A is filled into the through holes 45 that do not have male threaded rods 52 inserted therethrough.

[0048] When repairing the inspection paths 3 and 4, the vertical surface portion 33 of the repair panel 31 is placed on a repair vertical wall surface 5A from which a portion of the tiles 14 and the vertical wall concrete portion 13 of the vertical wall surface 5 has been removed. As an example, in order to remove the surface of the vertical wall concrete portion 13 together with the tiles 14, the vertical wall surface 5 is removed by a predetermined thickness of about 30 mm, and the tiles 14 are chipped off by 20 mm and the vertical wall concrete portion 13 is chipped off by about 10 mm to form the repair vertical wall surface 5A.

[0049] If the vertical wall concrete portion 13 has deteriorated beyond 10 mm from the surface, it is chipped further than 10 mm and reinforced with mortar or the like to form the repaired vertical wall surface 5A. The repair panel 31 is installed so that the outer surface of its vertical surface portion 33 is positioned at the outer surface of the existing vertical wall surface 5.

[0050] A plurality of through holes 36 are drilled in the vertical surface portion 33 of the repair panel 31, and full-thread bolts 72 of grip anchors 71 serving as anchoring means are inserted through the through holes 36. In this example, three through holes 36 are drilled at equal intervals in the left-right direction on the upper side of the vertical surface portion 33. In addition, large-diameter hole portions 37 with a larger diameter than the through holes 36 are formed on the outer surface side of the vertical surface portion 33 of the through holes 36.

[0051] The pavement layer 8 of the roadway 2 is provided on the central side portion 22C of the upper surface of the circular gutter 21, and an end portion 8T of the pavement layer 8 in the road width direction is close to the water collection outlet 24. In addition, a white line 9 that functions as a road dividing line is provided on the side of the end portion 8T of the pavement layer 8, and this white line 9 is located on the central side portion 22C of the upper surface. Therefore, the end portion 9T of the white line 9 in the road width direction is the end portion of the roadway 2 in the road width direction, and the area between the ends 9T, 9T of the white lines 9, 9 on both sides in the road width direction is the normal driving range of vehicles.

[0052] Next, a method for repairing the inspection roads 3, 4, which are road shoulder structures, will be explained using the inspection road 3 as an example. First, as an example, the vertical wall surface 5 is removed to a predetermined thickness of about 30 mm. The predetermined thickness is 20 mm for the tiles 14 and about 10 mm for a portion of the vertical wall concrete portion 13, and a portion of the vertical wall concrete portion 13 is chipped and removed to form a repaired vertical wall surface 5A. If rusted rebar or the like is exposed after chipping off a portion of the vertical wall concrete portion 13, the rust is removed from the rebar, and the repaired vertical wall surface 5A is reinforced by applying mortar before placing the repair panel 31.

[0053] The upper outer surface 22S of the circular gutter 21 is the mounting location for the panel legs. Before placing the repair panel 31, the bolt anchor 51 is attached to the upper outer surface 22S of the circular gutter 21, and the male threaded rod 52 of the bolt anchor 51 is erected on the upper outer surface 22S. After erecting the male threaded rod 52, adjustment mortar is poured on the upper surface and upper outer surface 22S of the concrete foundation 11 between the repair vertical wall surface 5A and the leg tip surface 34B of the repair panel 31, forming an adjustment mortar layer 81 with a thickness of approximately 20 mm. As described above, the upper central side portion 22C is inclined slightly downward toward the water collection outlet 24, while the upper surface of the adjustment mortar layer 81 is horizontal in the road width direction. The gradient of the adjustment mortar layer 81 in the road length direction is the same as that of the roadway 2 or the walkway 6.

[0054] Before placing the repair panel 31, a grip anchor 71 is attached to the vertical wall surface 5A to be repaired. As shown in Figure 12, the grip anchor 71 has the enlarged head portion 53 and a hollow cylinder 54, and a female screw portion (not shown) is formed inside the hollow cylinder 54. The grip anchor 71 is set by inserting the enlarged head portion 53 into the tip of the hollow cylinder 54.

[0055] Then, a horizontal mounting hole 73 is drilled in the vertical wall surface 5A to be repaired, and the hollow cylinder 54 with the enlarged head 53 inserted into the tip is inserted into this mounting hole 73. When the base end of the hollow cylinder 54 is driven in with a jig (not shown), the enlarged head 53 expands the diameter of the tip enlarged piece 56, and the enlarged head 53 and hollow cylinder 54, which serve as the anchor mounting portion, are fixed in the mounting hole 73. After the male threaded rod 52 of the bolt anchor 51 is inserted into the through hole 45, a fully threaded bolt 72 is screwed into the hollow cylinder 54.

[0056] After forming the adjusting mortar layer 81 and attaching the anchor attachment portion of the grip anchor 71 to the repair vertical wall surface 5A, the repair panel 31 is attached. The repair panel 31 is lifted by a self-propelled transport and lifting means (not shown). Existing The repair panel 31 is transported to the installation position inside the tunnel 1, lifted from a loading platform (not shown), and then lowered, and the corresponding male threaded rods 52, 52 are inserted into the through holes 45, 45, and the underside 34A of the leg is placed on the adjustment mortar layer 81.

[0057] The thickness of the vertical surface portion 33 of the panel body 32 is 20 mm, and the predetermined thickness is approximately 30 mm, so the repair panel 31 is positioned so that the gap between the repair vertical wall surface 5A and the vertical surface portion 33 is approximately 10 mm. In this case, since the through-hole 45 is an elongated hole that is long in the road width direction, the position of the repair panel 31 in the road width direction can be adjusted, and for this purpose, positioning means 83 is used.

[0058] 13 and 14 show an example of the positioning means 83. A plate 84 serving as an attachment member is inserted into the water collection outlet 24 of the circular gutter 21, and a plurality of wedge-shaped plate pieces 85 serving as positioning members are used to position the outer surface 84G of the plate 84 on the road shoulder side to the inner surface 24N of the water collection outlet 24 on the outside in the road width direction. In this case, the wedge-shaped plate pieces 85 are driven into the gap between the plate 84 and the water collection outlet 24, thereby positioning the plate 84 to the water collection outlet 24.

[0059] One side 86A of a spacing member 86 such as a square timber is fixed to the outer surface 84G of the plate 84, and the distance K between the other side 86B of the spacing member 86 facing the one side 86A and the outer surface 84G is adjusted to match the design dimensions of the inner surface 24N of the water collection outlet 24 and the leg tip surface 34B. For one repair panel 31, multiple spacing members 86 are provided on the outer surface 84G of the plate 84 at intervals in the length direction of the road. The plate 84 and spacing members 86 can be made of wood.

[0060] Therefore, after inserting the male screw rod 52 into the through hole 45, the leg tip surface 34B of the repair panel 31 can be abutted against the other side surface 86B of the positioning means 83, thereby positioning the repair panel 31 in the road width direction.

[0061] After the repair panel 31 is positioned in the road width direction, the double nuts 60, 60 are tightened to fix the lower part of the repair panel 31 to the circular side gutter 21.

[0062] Furthermore, when filling the inner surface of the repair panel 31 with backfill material, a retaining structure 91 is used to prevent the vertical surface portion 33 from bending outward, and this retaining structure 91 has the following configuration. As shown in Fig. 8, a fully threaded bolt 72 is inserted into the through hole 36 of the vertical surface portion 33, and the tip of this fully threaded bolt 72 is screwed into the hollow cylinder 54 of the repair vertical wall surface 5A. Furthermore, as shown in Fig. 9, horizontal rods 92, 92 serving as retaining members are arranged above and below the multiple fully threaded bolts 72, and these horizontal rods 92, 92 abut against the outer surface of the vertical surface portion 33. The upper and lower horizontal rods 92, 92 are held by a roughly U-shaped retainer 94, the fully threaded bolt 72 is inserted into a through hole 94T of the retainer 94, a nut 95 (Fig. 9) is screwed onto the fully threaded bolt 72, and the retainer 94 is fixed with the nut 95 to support the horizontal rods 92, 92. In Fig. 9, the horizontal rod 92 has a length corresponding to one repair panel 31, but it may have a length greater than one panel.

[0063] A plurality of repair panels 31 are lined up in the lengthwise direction of the road, the lower parts of the repair panels 31 are fixed with bolt anchors 51, and the upper sides of the repair panels 31 are held by retaining structures 91. Then, grout material 96, which serves as a backfill material, is filled from above into the filling space 100 between the inner surface 33N of the vertical surface portion 33 of the repair panel 31, which serves as a formwork, and the vertical wall surface 5A to be repaired. In this case, the grout material 96 is filled from the gap between the upper end of the vertical wall surface 5A to be repaired and the upper inner surface of the repair panel 31. The grout material 96 is also filled on the inner surfaces of the plurality of repair panels 31, 31...

[0064] Once the grout material 96 has hardened, the nuts 95 are loosened and the retainers 94 and horizontal rods 92, 92 are removed, after which the threaded bolts 72 are cut and removed from within the large diameter hole portions 37 so that the tips of the threaded bolts 72 do not protrude from the outer surface of the vertical surface portions 33, and these large diameter hole portions 37 are then sealed with grout material 96A such as mortar. Providing the large diameter hole portions 37 in the through holes 36 in this way makes it easier to fill the through holes 36 with grout material 96A.

[0065] As described above, in this embodiment, corresponding to claim 1, a repair panel 31 is used for inspection roads 3, 4 as road shoulder structures having vertical wall surfaces 5 provided on the road shoulder of a roadway 2 as a road in an existing tunnel 1, and a grout material 96 as a backfill material is filled between the vertical wall surfaces 5. The repair panel 31 includes a panel body 32 made of a cement-based material reinforced with fibers, and the panel body 32 is integrally provided with a vertical surface portion 33 covering the vertical wall surface 5 side and legs 34 provided at the bottom of the vertical surface portion 33 and protruding from the outer surface side of the vertical surface portion 33. A through hole 45 is drilled in the leg 34 to insert a male threaded rod 52 serving as an anchor member for mounting, which protrudes from the outer upper surface 22S of the circular side ditch 21, which is the panel leg mounting location of the existing tunnel 1. The leg 34 has a horizontal leg lower surface 34A and a leg inclined outer surface 34C that slopes obliquely upward from the center of the roadway 2 toward the outer surface of the vertical surface 33. The leg 34 is shaped so that it becomes thicker from the center of the roadway 2 toward the vertical surface 33. A mounting recess 41 is formed in the leg inclined outer surface 34C, and a through hole 45 is drilled in the bottom surface 42 of the mounting recess 41. A nut 60 serving as a fixing device is attached to the male threaded rod 52 inserted into the through hole 45, and the leg 34 is attached to the circular side ditch 21 by the nut 60. The upper end of the male threaded rod 52 and the nut 60 are housed in the mounting recess 41. Therefore, since the legs 34 are integrally provided at the lower part of the vertical surface portion 33 that covers the vertical wall surface 5, the panel main body 32 can be easily installed using the legs 34.

[0066] In this way, in this embodiment, claims 1 Correspondingly, the leg 34 ExistingA through hole 45 is drilled to insert a male screw rod 52, which serves as an anchor member for mounting, protruding from the upper outer part 22S of the circular gutter 21, which is the panel mounting location of the tunnel 1.The panel body 32 is installed so that the male screw rod 52 is inserted into the through hole 45, and the leg part 34 can be attached to the upper outer part 22S by the male screw rod 52.

[0067] In this way, in this embodiment, claims 1 In response to , male The panel body 32 is placed so that the threaded rod 52 is inserted into the through-hole 45, and the leg portion 34 can be attached to the upper surface outer portion 22S by attaching a nut 60 to the male threaded rod 52.

[0068] Furthermore, according to the configuration of claim 1, the leg portion 34 has excellent strength, and furthermore, the upper end of the male screw rod 52 and the nut 60 serving as a fixing device can be stored in the mounting recess 41, so that they do not protrude from the outer surface of the panel main body 32.

[0069] In this way, in this embodiment, claims 8 Corresponding to this, reinforcing bars are buried in the circular gutter 21 where the panel legs are attached, and a plurality of through holes 45, 45 are drilled close to each other in the direction of the road length on both sides of the leg 34 in the direction of the road length, and a mounting hole 57 is drilled in the upper surface outer part 22S corresponding to one of the plurality of through holes 45, 45, and a male screw rod 52 serving as a mounting anchor member is attached to this mounting hole 57. The male screw rod 52 is inserted into the through hole 45 and a nut 60 serving as a fixing device is attached to the male screw rod 52, and the leg 34 is attached to the male screw rod 52. Therefore, when drilling the mounting hole 57 in the upper surface outer part 22S, if a member that prevents drilling, such as reinforcing bars, is encountered, the drilling position of the mounting hole 57 can be changed and the male screw rod 52 can be attached.

[0070] In this way, in this embodiment, claims 9 Correspondingly, the panel leg attachment location is a circular gutter 21 which is a gutter having an upper outer surface 22S which is an inclined upper surface, and a height adjustment mortar layer 81 which is a height adjustment layer with a flat upper surface is provided on the upper outer surface 22S, and the leg 34 is placed on this height adjustment mortar layer 81.Therefore, by providing the height adjustment mortar layer 81 on the inclined upper outer surface 22S, the leg 34 can be placed on the height adjustment mortar layer 81 which has a flat upper surface.

[0071] As an effect of the embodiment, the leg portion 34 is not flat, but leg outside slope face 34 Since the angle C is 30 to 60 degrees with respect to the vertical surface portion 33 and the cross section is a substantially triangular shape, it has excellent strength. In addition, since the mounting recesses 41, 41A are provided in the leg portion 34, the upper end of the male screw rod 52, the fixing plate 59 and the washer 59W as the fixing member, Fixing tool The nuts 60 can be housed in the mounting recesses 41, 41A, and they do not protrude from the outer surface of the panel body 32.

[0072] Because the through-holes 45 are elongated in the road width direction (inside and outside the panel), it is possible to align the repair panel 31 in the road width direction. Furthermore, the positioning means 83 for positioning the repair panel 31 in the width direction includes a plate material 84 serving as a mounting member that is detachably and temporarily fixed to the water collection opening 24 of the circular gutter 21, and a spacing member 86 that sets the spacing between the outer surface 24G of the plate material 84 and the leg tip surfaces 34B that are the tips of the legs 34. Therefore, the repair panel 31 can be easily positioned using the water collection opening 24 of the circular gutter 21.

[0073] The provision of the retaining structure 91 prevents outward deflection of the vertical surface portion 33 when filling the inner surface of the repair panel 31 with backfill material. After the grout 96 has hardened, the nuts 95 are loosened, the retainers 94 and the horizontal rods 92 are removed, and the fully threaded bolts 72 are then cut and removed from within the large-diameter holes 37 so that the tips of the fully threaded bolts 72 do not protrude from the outer surface of the vertical surface portion 33. The large-diameter holes 37 are then sealed with grout 96A, such as mortar, eliminating any protrusions from the outer surface of the vertical surface portion 33. The large-diameter holes 37, which are larger in diameter than the through-holes 36, are formed on the outer surface of the vertical surface portion 33 near the through-holes 36. This facilitates filling the large-diameter holes 37 with grout 96A, thereby easily sealing the through-holes 36.

[0074] If the mounting holes 57 of the circular gutter 21 are drilled after forming the adjusting mortar layer 81, there is a risk that the adjusting mortar layer 81 will crack during drilling, but by forming a thin adjusting mortar layer 81 after fixing the bolt anchor 51 in the mounting hole 57 of the circular gutter 21, the occurrence of such cracks can be prevented. Also, since the grip anchor 71 is provided with a fully threaded bolt 72 that screws into the hollow cylinder 54, by screwing the fully threaded bolt 72 into the hollow cylinder 54 after hanging the repair panel 31, the fully threaded bolt 72 does not get in the way during hanging. [Example]

[0075] 15 and 16 show a second embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals and their explanations are omitted. In this embodiment, a drainage structure is provided in a repair panel 31.

[0076] A recess 62 serving as a water-passing portion is formed in the center of the upper edge 61 of the repair panel 31, and a central upper edge 62A is formed at the bottom of this recess 62 so as to be flush with the passage 6. On both sides of this central upper edge 62A are raised edges 62B, 62B, and on both sides of these raised edges 62B, 62B are located left and right upper edges 63, 63, which are water-stopping portions that are one step higher than the central upper edge 62A. The top of the recess 62 may be closed to form the water-passing portion into a horizontally long slot-shaped opening.

[0077] Therefore, with the repair panel 31 attached, the upper edge 61 is located above the passage 6, and water on the passage 6 flows down from the recess 62 along the outer surface of the vertical surface 33.

[0078] The outer surface of the repair panel 31 is provided with a water conduit 65 that guides water flowing down the outer surface. This water conduit 65 consists of a pair of water conduit ridges 66, 66 provided in correspondence with the recesses 62 and the outer surface of the repair panel 31 between these water conduit ridges 66, 66, and these water conduit ridges 66, 66 are arranged adjacent to each other at a distance in the longitudinal direction of the road. Each pair of water conduit ridges 66, 66 includes a pair of upper ridges 67, 67 whose spacing narrows from top to bottom, and a pair of lower ridges 68, 68 that are continuous with the lower portions of the pair of upper ridges 67, 67. This pair of lower ridges 68, 68 are formed parallel to each other in the vertical direction, and the lower ends 68T, 68T of these lower ridges 68, 68 are located on the tip end surface 34B of the leg portion 34.

[0079] The distance between the upper ends of the upper protrusions 67, 67 is wider than the distance between the recesses 62, and the upper ends of the upper protrusions 67, 67 are located above the central upper edge 62A. The thickness of the recesses 62 is 0.25 to 0.5 times (0.25 times or more, 0.5 times or more) the thickness of the panel main body 32. . 5 times or less). The width of the recess 62 is approximately equal to the thickness of the panel main body 32.

[0080] Furthermore, as shown in Figure 16, when filling the inner surface of the repair panel 31 with backfill material, wooden spacers 93 such as square timbers are placed between the horizontal rods 92, 92 and the outer surface of the vertical surface portion 33, and the spacers 93 are positioned against the outer surface of the vertical surface portion 33 so that the horizontal rods 92, 92 and the spacers 93 do not come into direct contact with the water-conducting ribs 66.

[0081] The outer surface of the vertical surface portion 33 of the repair panel 31 is provided with a line-of-sight guidance paint at the factory to form a line-of-sight guidance portion 39. The water-guiding ribs 66, 66 are also provided with line-of-sight guidance portions 39. Examples of line-of-sight guidance paint include fluorescent paint, phosphorescent paint, fluorescent paint or phosphorescent fluorescent paint, retroreflective paint, and inorganic paint colored on a desired inorganic fiber layer. The line-of-sight guidance portion 39 has a superior visual recognition effect compared to before the paint was applied.

[0082] The upper edge of the line-of-sight guidance portion 39 is located below the large-diameter hole portion 37, and the upper end of the protrusion upper portion 67 is located below the large-diameter hole portion 37. The lower edge of the line-of-sight guidance portion 39 is located at the lower edge of the vertical surface portion 33.

[0083] In this way, the present embodiment provides the same functions and effects as the first embodiment.

[0084] In this way, in this embodiment, claims 2 Accordingly, water-conducting ridges 66, 66 which are vertical ridges adjacent to each other in the length direction of the road are provided on the outer surface of the vertical surface part 33, and a water conduit 65 is provided between these water-conducting ridges 66, 66, so that water flowing down along the outer surface of the vertical surface part 33 can be collected in the water conduit 65 and efficiently drained.

[0085] In this way, in this embodiment, claims 4 Accordingly, a recess 62 serving as a water passage portion is provided in the upper edge 61 of the vertical surface portion 33 in correspondence with the water conduit 65, so that water flowing along the upper surface of the inspection road 3 serving as a road shoulder structure can be guided to flow down from the recess 62 to the outer surface of the vertical surface portion 33.

[0086] In this way, in this embodiment, claims 5 Corresponding to the claim 1st article Since the repair panel 31 is used and the outer surface of the vertical surface portion 33 is coated with the eye-guiding paint in the factory, there is no need to paint the eye-guiding paint on site.

[0087] As an effect of the embodiment, a pair of upper ridges 67, 67 whose spacing narrows from top to bottom is provided above the water-conducting ridges 66, 66, and the spacing between the upper ends of the upper ridges 67, 67 is wider than the spacing between the recesses 62, and the upper ends of the upper ridges 67, 67 are located above the central upper edge 62A, so that the upper ridges 67, 67 can reliably guide water flowing down from the recesses 62 to the water conduits 65 within the upper ridges 67, 67. Furthermore, while providing a water conduit by a recess in a relatively thin panel body 32 reduces the strength, providing the water conduits 65 by the ridges 66, 66 makes it possible to provide the water conduits 65 without reducing the strength of the panel body 32.

[0088] Furthermore, spacers 93 are provided between the horizontal rods 92, 92 and the outer surfaces of the vertical surface portions 33 so that the horizontal rods 92, 92 and the spacers 93 do not come into direct contact with the water guide ribs 66, preventing problems such as the horizontal rods 92 coming into contact and the visual guidance paint on the ribs 66 being peeled off. Furthermore, compared to when the panel body 32 is made thick and the water guide channel 65 is formed as a recess, by providing the water guide ribs 66, 66 the water guide channel 65 is formed by the outer surface of the panel body 32 between them, making it possible to make the panel body 32 lighter. [Example]

[0089] Figures 17 to 23 show a third embodiment of the present invention, in which the same parts as those in the above-mentioned embodiments are given the same symbols and their explanations are omitted. In this example, the panel body 32 of the repair panel 31A used to repair the inspection paths 3, 4 is made of high-strength fiber-reinforced mortar or high-strength fiber-reinforced concrete, and is integrally provided with the flat vertical surface portion 33 provided on the vertical wall surface 5, and the leg portion 34 provided at the bottom of this vertical surface portion 33 and protruding toward the center of the tunnel corresponding to the upper surface outer portion 22S.

[0090] 17 and the like, the leg 34 integrally comprises a flat leg 101 perpendicular to the vertical surface 33 and a thick inclined leg 102 provided between the vertical surface 33 and the flat leg 101. Specifically, an inclined inner surface 102N of the inclined leg 102 is provided between the inner surface 33N of the vertical surface 33 and the leg lower surface 34A of the leg 34, and a leg inclined surface 102N is provided between the outer surface of the vertical surface 33 and the upper surface of the flat leg 101. outside The repair panel 31 is installed with the leg tip surface 34B positioned on the outer inner surface 24N of the water collection outlet 24 in the road width direction.

[0091] A plurality of (two) recesses 41, 41 are formed on the outer surface of the sloped leg 102, spaced apart in the road length direction. The bottom surface 42 of each recess 41 is parallel to the leg lower surface 34A and has a substantially rectangular shape in plan view. outsideBetween the surface 34C and the panel, four vertical inner surface portions 46, 46A, 46B, 46B are formed on the left and right sides of the inner and outer panels, and the inner vertical inner surface portion 46 is formed lower than the outer vertical inner surface portion 46A (FIG. 22).

[0092] As shown in FIG. 21, a through hole 45A is provided vertically in the bottom surface 42, into which the male screw rod 52 is loosely inserted. The through hole 45A is circular and larger than the male screw rod 52, and the position of the male screw rod 52 can be adjusted within the through hole 45A.

[0093] As shown in Figure 17, connecting arms 111 are provided at the upper left and right ends of the vertical surface portion 33 of the repair panel 31, protruding rearward perpendicular to the vertical surface portion 33. These connecting arms 111 are shaped like plates of a fixed height, with the thickness direction of the connecting arms 111 aligned along the length of the road. The outer surface 112 of the connecting arms 111 corresponds to the outer surface 112 of the connecting arm 111 of the adjacent panel 31, and a through hole 113 is drilled at the tip end. The outer surface 112 is perpendicular to the inner surface 33N of the vertical surface portion 33.

[0094] In addition, a diagonal padding portion 114 is formed between the inner surface 33N of the vertical surface portion 33 and the base end side of the inner surface of the connecting arm portion 111. Furthermore, a drainage portion 115 recessed upward is formed in the lower part of the base end side of the connecting arm portion 111.

[0095] The fixing device 121 is made of metal and fixes the connecting arms 111, 111 of adjacent repair panels 31, 31 to the upper surface of the vertical wall concrete portion 13. As shown in Fig. 18, the fixing device 121 has a plate-shaped base portion 122 having through holes 122T, 122T on the left and right, and a pair of clamping portions 123, 123 erected at the center of the upper surface of the base portion 122 and spaced apart on the left and right, and these clamping portions 123, 123 have through holes 123T drilled in the horizontal direction.

[0096] The connecting arms 111, 111, with their outer surfaces overlapping, are inserted between the pair of clamping portions 123, 123, and a bolt 124 is inserted through the through holes 123T, 123T of the clamping portions 123, 123 and the through holes 113, 113 of the connecting arms 111, 111, and a nut (not shown) is screwed onto this bolt 124, thereby fixing the pair of connecting arms 111, 111 to the fixing device 121.

[0097] Furthermore, by fixing an anchor bolt 126 with a head 126H inserted and fixed in the through hole 122T inside the passage 6, the fixing device 121 is fixed to the upper surface of the passage 6. In this embodiment, by using the connecting arm portion 111 and the fixing device 121, the holding structure 91 of the first embodiment is not necessary.

[0098] When repairing the vertical wall surfaces 5 of the inspection paths 3 and 4, the vertical wall surfaces 5 are removed by a predetermined thickness as in Example 1 to form the repaired vertical wall surfaces 5A. In addition, the outer upper surface portion 22S of the circular gutter 21, which is the upper surface facing the road and located below the repaired vertical wall surfaces 5A, is chipped by a predetermined thickness to form the chipped upper surface portion 22H. In this example, the predetermined thickness is about 40 mm, and is chipped using a water jet or the like.

[0099] Once the chipping of the outer upper surface portion 22S is complete, the bolt anchor 51 is attached to the uneven chipped upper surface portion 22H. A plurality of washers 127, which serve as height adjustment members with through holes 127T, are inserted into the male threaded rod 52 of the chipped upper surface portion 22H, and the height of the upper surface of the uppermost washer 127 is adjusted to a predetermined height by adjusting the number of washers 127. In this case, the flat upper surface 34J (FIG. 19) on the leg tip surface 34B side of the leg 34 is adjusted to the height of the outer upper surface portion 22S at the position of the water collection port 24.

[0100] Furthermore, a backup material 131 made of a sponge or the like is placed on the water collection port 24 side of the chipped upper surface 22H to prevent leakage of the grout material 96, which is the backfill material (FIG. 19). In this case, the backup material 131 can be attached to the chipped upper surface 22H or to the leg undersurface 34A, and the backup material 131 is placed between the chipped upper surface 22H and the leg undersurface 34A.

[0101] 21, the positioning means 83A in this example includes the plate material 84 and the wedge-shaped plate piece 85 (FIG. 13), and by aligning the outer surface 84G of the plate material 84 with the inner surface 24N of the water collection outlet 24 and abutting the leg tip surfaces 34B of the legs 34 against this outer surface 84G, the repair panel 31A is positioned in the road width direction, and the leg tip surfaces 34B of the legs 34 are positioned on the inner surface 24N of the water collection outlet 24. After this positioning, the fixing plate 59 and washer 59W are inserted into the male threaded rod 52 protruding into the recess 41, and the nut 60 is screwed in, thereby fixing the lower part of the repair panel 31A to the circular gutter 21.

[0102] Furthermore, after the connecting arms 111, 111 of adjacent repair panels 31, 31 are fixed to metal fixtures 121 that secure them to the upper surface of the vertical wall concrete portion 13, grout material 96, which serves as a backfill material, is filled from above between the inner surface of the repair panel 31A, which serves as the formwork, and the repair vertical wall surface 5A. In this case, since an oblique inner surface 102N with a notched corner is formed between the inner surface 33N of the vertical surface portion 33 and the leg lower surface 34A, the grout material 96 filled from above can be smoothly filled between the leg lower surface 34A and the chipped upper surface portion 22H.

[0103] In this example, the filling space 100 is the space between the inner surface 33N of the vertical surface portion 33 of the repair panel 31 and the repair vertical wall surface 5A, and the space connected thereto between the chipped upper surface portion 22H, the leg lower surface 34A, and the backup material 131. The chipped upper surface portion 22H formed by chipping is an uneven surface, but by closing the end of the filling space 100 with the elastically deformable backup material 131, leakage of the grout material 96 can be prevented.

[0104] In this way, this embodiment provides the same functions and effects as the above-described embodiments.

[0105] In this way, in this embodiment, claims 3 Corresponding to this, Surface part 33A connecting arm 111 is provided on the upper part of the panel body 32 to connect to a fixing device 121 provided on the passage 6 which is the top end of the inspection road 3 which is a road shoulder structure.Therefore, by connecting the connecting arm 111 provided on the panel body 32 to the fixing device 121, the upper part of the panel body 32 can be fixed to the inspection road 3 which is a road shoulder structure.

[0106] In this way, in this embodiment, claims 7 Correspondingly, in a method for repairing a tunnel shoulder structure in which a repair panel 31A as described in claim 4 is used and a grout material 96 as a backfill material is filled between the repair vertical wall surface 5A which is a vertical wall surface, the connecting arms 111, 111 of adjacent panel bodies 32, 32 in the longitudinal direction of the road are fixed to the passage 6 which is the top surface by fixing devices 121, so that the connecting arms 111, 111 of adjacent panel bodies 32, 32 can be fixed to the passage 6 by a common fixing device 121.

[0107] In this way, in this embodiment, claims 10 Correspondingly, the panel leg attachment location is a circular gutter 21 which is a gutter having an outer upper surface 22S which is an inclined upper surface, and after the outer upper surface 22S which is an inclined upper surface is chipped off, a male screw rod 52 which is an attachment anchor member is attached to this chipped outer upper surface 22S, a washer 127 which is a height adjustment member is inserted into this male screw rod 52, and the leg 34 is placed on this washer 127.Therefore, by inserting the washer 127 into the male screw rod 52 and adjusting the height of the washer 127, the panel main body 32 can be installed with the height of the leg 34 aligned.

[0108] As an effect of the embodiment, the lower edge of the connecting arm 111 is provided with a drainage section 115 recessed upward, so that water flowing due to the slope of the passage 6 in the longitudinal direction of the road can be diverted to the adjacent repair panel 31A side and drained from the recess 62 of the upper edge 61 to the outer surface side of the vertical surface section 33.

[0109] The flat upper surface 34J on the leg tip surface 34B side of the leg 34 is adjusted to the height of the upper outer surface part 22S at the water collection port 24 position, so that an area for vehicles to travel in the amount of the upper surface 34J can be secured, and the construction limit width can be secured.

[0110] An oblique inner surface 102N with a notched corner is formed between the inner surface 33N of the vertical surface portion 33 and the leg lower surface 34A, so that the grout material 96 filled from above is smoothly filled between the leg lower surface 34A and the chipped upper surface portion 22H.

[0111] Since the leg tip surfaces 34B of the legs 34 are positioned on the inner surface 24N of the water collection port 24, water flowing down the outer surface of the panel body 32 can be collected in the water collection port 24.

[0112] The positioning means 83A comprises a plate material 84 and a wedge-shaped plate piece 85 which serves as a fixing means for the plate material 84, and by aligning the outer surface 84G of the plate material 84 with the inner surface 24N of the water collection outlet 24 and abutting the leg tip surface 34B of the leg 34 against this outer surface 84G, the repair panel 31A can be positioned in the road width direction. [Example]

[0113] 24 and 25 show a fourth embodiment of the present invention, in which the same parts as those in the above-mentioned embodiments are designated by the same reference numerals and their explanations are omitted. In this embodiment, a drainage structure is provided on the repair panel 31A of the third embodiment.

[0114] As shown in the figure, the repair panel 31A is provided with a recess 62 and a water conduit 65. In this case, the lower ends of the lower ridge portions 68, 68 are located on the tip end surface 34B of the leg portion 34, and since this tip end surface 34B is on or close to the water collection port 24, water flowing down the water conduit 65 can be drained directly into the water collection port 24.

[0115] In this way, this embodiment provides the same functions and effects as the above-described embodiments.

[0116] The present invention is not limited to this embodiment, and various modifications are possible within the scope of the present invention. For example, two or more water conduits may be provided in one panel body, and a plurality of recesses 62 may be provided corresponding to the water conduits. Preferably, the number of water conduits and recesses 62 is the same. Also, although a pair of recesses is provided on one side of the panel body, three or more recesses may be provided. Furthermore, it goes without saying that the inspection channel 4 can be repaired in the same way as the inspection channel 3. Although not in accordance with the claims, if the repair panel is formed thick, the repair panel may be formed from a cement-based material that is not reinforced with fibers. [Explanation of symbols]

[0117] 1 Existing tunnel 2 Roadway (road) 3 Inspection road (shoulder structure) 4 Inspection road (shoulder structure) 5 Vertical wall 5A Repair vertical wall (vertical wall) 6 Passage (top end) 6A Top surface 21 Circular gutter (panel leg Mounting point (ditch) 22S Top outer part (sloped top surface) 31,31A Repair Panel 32 Panel body 33 Vertical section 34 Legs 34A Bottom surface of legs (installation surface) 34C Leg sloped outer surface 39 Eye guidance section 41 Recess 41A recess 45,45A through hole 51 Bolt anchor (anchor means) 52 Male threaded rod (mounting anchor part) 60 Nut (fixing device) 65 Waterway 66 Water guide ridge (ridge) 81 Height adjustment mortar layer (height adjustment layer) 96 Grout material (backfill material) 111 Connecting arm 121 Fixtures 127 Washer (height adjustment member)

Claims

1. A repair panel used for a road shoulder structure having a vertical wall surface provided on the road shoulder of a road in an existing tunnel, in which backfill material is filled between the vertical wall surface and the repair panel, A panel body made of a fiber-reinforced cement-based material, The panel body integrally includes a vertical surface portion covering the vertical wall surface side and a leg portion provided at a lower portion of the vertical surface portion and protruding toward an outer surface side of the vertical surface portion, A through hole is drilled in the leg portion to insert an attachment anchor member protruding from the panel leg attachment location of the existing tunnel, The leg has a horizontal leg lower surface and a leg inclined outer surface that is inclined obliquely upward from the center of the road toward the outer surface of the vertical surface, and is shaped so that it becomes thicker from the center of the road toward the vertical surface, A mounting recess is formed on the inclined outer surface of the leg portion, and the through hole is drilled in the bottom surface of the mounting recess, A fixing tool is attached to the mounting anchor member inserted into the through-hole, and the leg is attached to the panel leg mounting location by this fixing tool, A repair panel for a tunnel shoulder structure, characterized in that the upper end of the mounting anchor member and the fixing device are housed in the mounting recess.

2. 2. A repair panel for a tunnel shoulder structure according to claim 1, characterized in that longitudinal ridges are provided adjacent to each other in the longitudinal direction of the road on the outer surface of the vertical surface portion, and a water channel is provided between these ridges.

3. 2. A repair panel for a tunnel shoulder structure according to claim 1, characterized in that a connecting arm portion is provided on the upper part of the vertical surface portion to connect to a fixing device provided on the top end of the road shoulder structure.

4. 3. A tunnel shoulder structure repair panel according to claim 2, wherein a recess is provided in the upper edge of said vertical surface portion in correspondence with said water channel.

5. 2. A method for repairing a tunnel shoulder structure, comprising using the repair panel according to claim 1 and applying a visual guidance paint to the outer surface of said vertical surface portion in a factory.

6. A method for repairing a tunnel shoulder structure, comprising using the repair panel according to claim 1 and filling a backfill material between the repair panel and the vertical wall surface.

7. A method for repairing a tunnel shoulder structure, comprising using the repair panel according to claim 3 and filling a backfill material between the repair panel and the vertical wall surface, A method for repairing a tunnel shoulder structure, characterized in that the connecting arm portions of the panel bodies adjacent in the road longitudinal direction are fixed to the top end portion by the fixing device.

8. Reinforcement bars are embedded in the panel leg attachment points, A plurality of through holes are drilled on both sides of the leg in the road length direction, adjacent to each other in the road length direction, a mounting hole is drilled in the panel leg mounting location corresponding to one of the plurality of through holes, and the mounting anchor member is attached to this mounting hole; 7. A method for repairing a tunnel shoulder structure according to claim 6, characterized in that the mounting anchor member is inserted into the through-hole, the fixing device is attached to the mounting anchor member, and the leg is attached to the panel leg attachment location.

9. A method for repairing a tunnel shoulder structure as described in claim 6, characterized in that the panel leg attachment location is a gutter having an inclined upper surface, a height adjustment layer with a flat upper surface is provided on the inclined upper surface, and the leg is placed on this height adjustment layer.

10. 7. A method for repairing a tunnel shoulder structure according to claim 6, wherein the panel leg attachment location is a gutter having an inclined upper surface, and after chipping the inclined upper surface, the attachment anchor members are attached to the chipped inclined upper surface, height adjustment members are inserted into the attachment anchor members, and the legs are placed on the height adjustment members.

Images