KR100599503B1 - Fiberboard with protrusions and waterproof and reinforcement method of old tunnel using the same - Google Patents

Abstract

In the present invention, a protrusion is formed at the edge of the reinforcement waterproofing fiber board and the reinforcement waterproofing fiber board to form a void formed between the concrete surface and the role of induction waterway or reinforcement adhesive resin injection space when attached to the concrete structure At the same time it also provides a seam fibreboard that forms voids that serve as guided water or serve as reinforcing adhesive resin injection spaces. In addition, it provides a waterproof tunnel and reinforcement method of the old tunnel by the reinforcement waterproof fiber board and the joint fiber board.

Tunnel, fiberboard, waterproof, reinforcement                  

Description

Fiber composite plates with projections and waterproofing and strengthening method of old tunnels by them}

1 is a perspective view showing an embodiment of the reinforcement waterproof fiber board and the joint fiber board of the present invention.

Figure 2 is a perspective view showing another embodiment of the reinforcement waterproof fiber board and the joint fiber board of the present invention.

Figure 3 is a perspective view showing another embodiment of the reinforcement waterproof fiber board and the joint fiber board of the present invention.

Figure 4 is a production process of the reinforcement waterproof fiber board and the joint fiber board of the present invention.

Figure 5a is a perspective view of a waterproof and repaired, reinforced tunnel using a fiberglass and joint fiberboard for reinforcement waterproofing of the present invention.

FIG. 5B is a cutaway view of a portion of FIG. 5A;

5C is an enlarged cross-sectional view of the cross section of FIG. 5B.

Figure 5d is a cross-sectional view of the tunnel simultaneously performed waterproofing, repair, reinforcement using the fiberglass and joint fiberboard for reinforcement waterproofing of the present invention.

(Explanation of symbols for the main parts of the drawing)

100: fiber board for reinforcement waterproofing

101: joint fiber board

111: upper projection 112: lower projection
113: lower protrusion

114a, 114b, 114c: voids

121: unidirectional fiber

122: fiber mesh

123: steel sheet

124 veil

125: resin

131: holder

132: resin impregnation tank

133: Guide

134: Mold

135: drawing machine

136: cutter

141: anchor bolt

142: anchor nut

143: Adhesive

150: concrete structure

The present invention relates to a method for waterproofing, repairing and reinforcing an aging tunnel. More specifically, it relates to a method of effectively waterproofing, repairing, and reinforcing concrete structures of aged tunnels using fiberboard.

There are many methods for waterproofing concrete structures in aged tunnels. However, the method of constructing the waterproof, repair and reinforcement effect at the same time has never been tried.

Normally, the waterproofing of tunnels is achieved by installing waterproof sheets on the outside of the concrete structures that make up the tunnels to prevent water from the underground from entering the concrete structures. However, the waterproof sheet is a very weak material, which is easily torn during the construction process and causes water leakage, and also causes a poor connection between the waterproof sheets and causes water leakage. If a crack occurs in the concrete structure of the tunnel while the water leaks in the waterproof sheet as described above, the water leaks into the tunnel. If the leak is severe, it may be ejected to such an extent that it immediately interrupts the use of the tunnel.

When water leaks in the tunnel as described above, water is injected by injecting a waterproofing material such as urethane into the water leaking part, or water is induced by induction waterproofing so that water does not flow into the tunnel by artificially opening a water channel. However, since the waterproof sheet on the outside of the concrete structure does not already play a role and the concrete structure is likely to be cracked again, it is common to leak to another part after a certain time.

Leaks in tunnels generally lead to weakening of the concrete structure. Therefore, it is very insufficient in terms of its effectiveness to apply only the waterproof method to leak. In addition, even if a leak of a certain part is indexed by a conventional waterproofing method, if a certain time passes, a leak occurs at another part, and if the leak is severe, that is, if the leak is ejected into the tunnel, May cause immediate disruption.

Therefore, the present invention overcomes the limitations of the conventional tunnel waterproofing method, to provide a method and a material used for the waterproof and reinforcing effect at the same time. In addition, even if water leaks again from the concrete structure constituting the tunnel after a certain period of time after the waterproofing work is performed, the water leak does not directly enter the tunnel, so that the leak does not immediately cause trouble to use the tunnel. And materials used therefor.

In order to achieve the above object, in the present invention, a protrusion is formed on the edge and the reinforcement waterproof fiberboard and the subsequent connection are formed to form a gap between the concrete surface and the role of guide water or reinforcement adhesive resin injection space when attached to the concrete structure It provides a jointed fiber board which combines the constructed reinforcement waterproof fiber boards and at the same time also forms voids that serve as guide water or serve as reinforcing adhesive resin injection space. In addition, it provides a waterproof tunnel and reinforcement method of the old tunnel by the reinforcement waterproof fiber board and the joint fiber board.

1 is a perspective view showing an embodiment of the reinforcing waterproof fiber board and the joint fiber board of the present invention, Figure 1a is a reinforcing waterproof fiber board 100, Figure 1b is a joint fiber board 101 used for connection between the reinforcing waterproof fiber board 100 ) Is shown.

The reinforcing waterproofing fiber board 100 of FIG. 1A is a steel plate 123 layer in a central portion, a unidirectional fiber 121 layer on an upper surface of the steel sheet 123 layer, and a fiber mesh 122 on an upper surface of the unidirectional fiber 121 layer. Layer, the one-way fiber 121 layer on the upper surface of the fiber mesh 122 layer, the veil 124 layer is laminated on the upper surface of the one-way fiber 121 layer, and the one-way fiber on the lower surface of the steel plate 123 layer. 121) layer, a fiber mesh 122 layer on the lower surface of the unidirectional fiber 121 layer, a unidirectional fiber 121 layer on the lower surface of the fiber mesh 122 layer, and a veil on a lower surface of the unidirectional fiber 121 layer ( 124) The stacked structure. The unidirectional fibers 121, the fiber mesh 122, and the veil 124 are laminated in a state impregnated with resin, respectively, and the respective layers are integrated with each other, including a steel sheet layer.

The upper direction 111 is formed on both edges of the unidirectional fiber 121 layer forming the uppermost surface, and the veil 124 layer is a unidirectional fiber 121 layer between portions of the upper protrusions 111. Laminated on the top surface. The one-way fiber 121 layer forming the bottom surface has a lower protrusion 112 formed along the fiber direction at both edges, and the veil 124 layer has a one-way fiber 121 layer between the two lower protrusions 112. Laminated on the bottom surface.

When the reinforcing waterproof fiber board 100 of the present invention is attached to the outer surface of the concrete structure of the old tunnel, the surface of the lower protrusion 112 is in contact with the concrete surface, thereby unidirectional fibers 121 between both lower protrusions 112 A gap 114a is formed along the direction of. The voids 114a serve as induction channels or used as spaces to fill reinforcing adhesive resins, as described below.

The joint fiber plate 101 of FIG. 1B includes a steel sheet 123 layer at a central portion, a unidirectional fiber 121 layer on an upper surface of the steel sheet 123 layer, and a fiber mesh 122 layer on an upper surface of the unidirectional fiber 121 layer. The one-way fiber 121 layer is disposed on the upper surface of the fiber mesh 122 layer, and the one-way fiber 121 layer is stacked on the upper surface of the one-way fiber 121 layer, and the one-way fiber 121 is disposed on the lower surface of the steel sheet 123 layer. ) Layer, the fiber mesh 122 layer on the lower surface of the unidirectional fiber 121 layer, the unidirectional fiber 121 layer on the lower surface of the fiber mesh 122 layer, the veil 124 on the lower surface of the unidirectional fiber 121 layer ) Is a laminated structure. The unidirectional fibers 121, the fiber mesh 122, and the veil 124 are laminated in a state impregnated with resin, respectively, and the respective layers are integrated with each other, including a steel sheet layer.

The one-way fiber 121 layer forming the bottom surface has a lower protrusion 113 formed along the fiber direction at both edges, and the veil 124 layer has a one-way fiber 121 layer between the two lower protrusions 113. Laminated on the bottom surface.

The joint fiber board 101 is a fiber board used to connect the reinforcing waterproof fiber board 100 and is coupled to the upper surface 111 of the upper surface 111 of the reinforcing waterproof fiber board 100 which is subsequently attached to the old tunnel concrete surface. The joint fiber board 101 serves to couple the reinforcing waterproofing fiber board 100 which is subsequently constructed as described below, and may also be used as a space for filling an induction channel or reinforcing adhesive resin.

The reinforcement waterproof fiberboard 100 and the joint fiberboard 101 of FIG. 1 are mainly used in old tunnels when reinforcement is the main purpose, or when reinforcement and waterproofing are required at the same time, but there is a greater purpose for reinforcement.

Figure 2 is a perspective view showing another embodiment of the reinforcement waterproof fiber board and the joint fiber board of the present invention, Figure 2a is a reinforcement waterproof fiber board 100, Figure 2b is a joint fiber board used for connection between the reinforcement waterproof fiber board 100 ( 101 is shown.

The reinforcing waterproofing fiber board 100 of FIG. 2A is a steel sheet 123 layer in a central portion, a unidirectional fiber 121 layer on an upper surface of the steel sheet 123 layer, and a veil 124 layer on an upper surface of the unidirectional fiber 121 layer. The laminate is formed, and the unidirectional fiber 121 layer is disposed on the lower surface of the steel plate 123 layer, and the bail 124 layer is laminated on the lower surface of the unidirectional fiber 121 layer. Instead of the steel sheet 123 layer, the fiber mesh 122 layer may be formed as a central portion. The unidirectional fibers 121 and the veil 124 are respectively laminated in the state of being impregnated with a resin so that each layer is integrated with each other by resin.

The one-way fiber 121 layer constituting the upper surface is formed with the upper protrusion 111 along the fiber direction at both edges, the veil 124 layer is a one-way fiber 121 layer between the two upper protrusions 111 It is stacked on the top surface. In the unidirectional fiber 121 layer forming the lower surface, lower protrusions 112 are formed at both edges along the fiber direction, and the veil 124 layer is a unidirectional fiber 121 layer between portions of the lower protrusions 112. Laminated on the bottom surface.

The reinforcement waterproof fiber board 100 having the above configuration is used as a substitute for the reinforcement waterproof fiber board 100 of FIG. 1A. That is, when the reinforcing waterproof fiber board 100 of FIG. 2A is attached to the concrete structure outer surface of the old tunnel, the surface of the lower protrusion 112 is in contact with the concrete surface, thereby unidirectional fibers between both lower protrusions 112. A gap 114a is formed along the direction of. The voids 114a serve as induction channels or used as spaces to fill reinforcing adhesive resins, as described below.

The joint fiber plate 101 of FIG. 2B has a steel sheet 123 layer at a central portion thereof, a unidirectional fiber 121 layer at an upper surface of the steel sheet 123 layer, and a veil 124 layer at an upper surface of the unidirectional fiber 121 layer. Laminated, the unidirectional fiber 121 layer on the lower surface of the steel plate 123 layer, the veil 124 layer is laminated on the lower surface of the unidirectional fiber 121 layer. Instead of the steel sheet 123 layer, the fiber mesh 122 layer may be formed as a central portion. The unidirectional fibers 121 and the veil 124 are respectively laminated in the state of being impregnated with a resin so that each layer is integrated with each other by resin.

The lower protrusions 113 are formed on both edges of the unidirectional fiber 121 layer forming the lower surface, and the veil 124 layer is a unidirectional fiber 121 layer between the lower protrusions 113. Laminated on the bottom surface.

The joint fiber board 101 of FIG. 2B is a fiber board used to connect the reinforcement waterproof fiber board 100 of FIG. 2A, and the upper projection 111 of the upper surface of the reinforcement waterproof fiber board 100 which is successively attached to the old tunnel concrete surface. ) Is combined. The joint fiber board 101 serves to couple the reinforcement waterproof fiber board 100 successively constructed as described below, and may also be used as a space for filling an induction channel or reinforcing adhesive resin.

The reinforcement waterproof fiber board 100 and the joint fiber board 101 of FIG. 2 may be used as a substitute for the reinforcement waterproof fiber board 100 and the joint fiber board 101 of FIG. 1, and are mainly used in an old tunnel requiring reinforcement and waterproofing at the same time. Used.

Figure 3 is a perspective view showing another embodiment of the reinforcement waterproof fiber board and the joint fiber board of the present invention, Figure 3a is a reinforcement waterproof fiber board 100, Figure 3b is a joint fiber board used for the connection between the reinforcement waterproof fiber board 100 101 is shown.

In the reinforcing waterproofing fiber plate 100 of FIG. 3A, a unidirectional fiber 121 layer is disposed at a central portion thereof, and a layer of veil 124 is stacked on an upper surface of the unidirectional fiber 121 layer, and a veil is disposed on a lower surface of the unidirectional fiber 121 layer. (124) It is a laminated structure. The unidirectional fibers 121 and the veil 124 are laminated in the state of being impregnated with a resin so that each layer is integrated with each other by resin.

The upper surface 111 of the one-way fiber 121 layer is formed on both edges along the fiber direction, and the veil 124 layer is formed on the upper surface of the one-way fiber 121 layer between the two upper protrusions 111. Are stacked on. Lower projections 112 are formed at both edges of the lower surface of the one-way fiber 121 layer along the fiber direction, and the veil 124 layer has a lower surface of the one-way fiber 121 layer between the two lower protrusions 112. Are stacked on.

When the reinforcing waterproof fiber board 100 of FIG. 3A is attached to the outer surface of the concrete structure of the old tunnel, the surface of the lower protrusion 112 is in contact with the concrete surface, thereby unidirectional fibers (between the lower protrusions 112). A gap 114a is formed along the direction of 121. The air gap 114a is mainly used as a space for filling an induction channel or reinforcing adhesive resin as described below.

3B, the joint fiber plate 101 of FIG. 3B has a unidirectional fiber 121 layer at a central portion thereof, a layer of a veil 124 stacked on an upper surface of the unidirectional fiber 121 layer, and a veil at a lower surface of the unidirectional fiber 121 layer. 124) The stacked structure. The unidirectional fibers 121 and the veil 124 are laminated in the state of being impregnated with a resin so that each layer is integrated with each other by resin.

Lower projections 113 are formed on both edges of the lower surface of the one-way fiber 121 layer along the fiber direction, and the veil 124 layer has a lower surface of the one-way fiber 121 layer between the two lower protrusions 111. Are stacked on.

The joint fiber board 101 of FIG. 3B is a fiber board used to connect the reinforcement waterproof fiber board 100 of FIG. 3A as the upper surface protrusion 111 of the reinforcement waterproof fiber board 100 which is successively attached to the old tunnel concrete surface. Is coupled to. The joint fiber board 101 serves to couple the reinforcement waterproof fiber board 100 subsequently constructed as described below, and may also be used as a space for filling an induction channel or adhesive resin.

The reinforcement waterproof fiber board 100 and the joint fiber board 101 of FIG. 3 are mainly used in an old tunnel that requires waterproofing, unlike the reinforcement waterproof fiber board and the joint fiber board of FIG. 1 or 2.

When the reinforcement waterproof fiberboard 100 and the joint fiberboard 101 is used for reinforcement, it is possible to improve the adhesion effect with the concrete surface by attaching particles to the outer surface using an adhesive. As the particles, any one kind of particles such as silica sand, blast furnace slag, garnet, or the like may be used, or two or more kinds thereof may be mixed and used.

As the unidirectional fibers 121 and the fiber mesh 122, fibers such as glass fibers, aramid fibers, and carbon fibers are used. Any one type of the fibers may be used or two or more kinds thereof may be mixed. The veil 124 is selectively used among polyester veil, glass veil, aramid veil, carbon veil and nylon veil.

As the steel sheet 123, a steel sheet, a stainless steel sheet, or the like, which is not plated or painted, or plated or painted, may be used. Instead of the steel sheet, an aluminum plate or a copper plate may be used. In order to improve the integration between the layer integrated on the upper and lower surfaces of the steel sheet 123 and the steel sheet 123, a hole may be used in a state in which a portion of the steel sheet 123 is processed. That is, the upper and lower layers of the steel sheet are connected to each other by a resin through a hole formed in the steel sheet 123.

By providing the bale layer 124 on the outer surface as described above, the outer surface becomes a more rich layer of resin serves to better protect the fibers stacked therein from moisture or ultraviolet rays, and further improve the color of the fiber board I can process it beautifully.

Since the color of the fiber board can be produced in various ways, in the case of an old and darkly discolored tunnel, the fiber board of light color, for example, white, has the advantage of doubling the lighting effect.

Figure 4 is a process diagram showing the production process of the reinforcing waterproof fiber board 100 and the joint fiber board 101 of the present invention. The holder 131, the resin impregnation tank 132, the guide 133, the mold 134, the drawer 135, and the cutter 136 are configured. Cradle 131 is selectively used according to the material to be injected.

The material corresponding to the holder 131, that is, the one-way fiber 121, the fiber mesh 122, the veil 124, the steel plate 123 is mounted, and each of the above materials is placed in the resin impregnation tank 132 in the resin 125 After impregnation), the drawer 135 is arranged through the guide 133 and the mold 134, and then the drawer 135 is advanced while supplying a heat source to the mold 134. The waterproof fiber board 100 or the joint fiber board 101 is produced and discharged, and used to cut to the required length with a cutter 136.

In the case of the reinforcing waterproofing fiber board 100 and the joint fiber board 101 of FIG. 1, the steel plate 123, "C", "E", "F", and "H" are mounted on a cradle designated as "A" in the cradle 131. One-way fiber 121 in the cradle, the "D", "G" in the cradle, and the fiber mesh 122, "B", "I" through the bail 124 to the cradle, through the resin impregnation tank It is put into the mold.

In the case of the reinforcing waterproofing fiber board 100 and the joint fiber board 101 of FIG. 2, the steel plate 123 or the fiber mesh 122, "E", "F" on the cradle 131 denoted by "A" The one-way fiber 121, the "D", the "G" to the cradle mounted on the cradle 124 is put through the resin impregnation tank and introduced into the mold.

In the case of the reinforcement waterproof fiber board 100 and the joint fiber board 101 of FIG. 3, the one-way fiber 121 in the cradle 131 denoted by "A", the bale 124 in the cradle denoted by "E", "F". It is injected into the mold through the resin impregnation tank.

In addition, the production of the reinforcement waterproof fiber board 100 and the joint fiber board 101 is achieved by manufacturing and using the shape of the mold 134 to be used in the form corresponding to the shape of the fiber board.

5A is a perspective view of a tunnel waterproof, repaired, and reinforced by using the reinforcement waterproof fiber board 100 and the joint fiber board 101 of the present invention. The reinforcement waterproof fiber board 100 is successively attached to the concrete structure 150 of the old tunnel, and the joint fiber board 101 is fixedly coupled to the anchor bolt 141 and the anchor nut 142 by the subsequent construction site. to be.

FIG. 5B is a cutaway view showing a cutaway portion of FIG. 5A, and a cross-sectional view showing a state in which a reinforcement waterproof fiber board 100 and a joint fiber board 101 are constructed in a concrete structure 150 of an old tunnel. The incision section cross section is again enlarged in FIG. 5C.

The method of waterproofing and reinforcing the old tunnel by using the reinforcement waterproof fiber board 100 and the joint fiber board 101 includes the following steps.
(1) reinforcing waterproofing fiber board bonding step of attaching the lower protrusion 112 of the reinforcing waterproofing fiber board 100 to the concrete structure 150 of the old tunnel using an adhesive;
(2) tableting the anchor bolt 141 to penetrate the lower protrusion 112 in the upper protrusion 111 of the reinforcement waterproofing fiber plate 100 to reach the interior of the concrete structure 150 of the old tunnel and anchor nut 142 A first anchor installation step of fastening;
(3) a joint fiber plate bonding step of inserting the upper protrusion 111 of the adjacent reinforcing waterproofing fiber plate 100 by using an adhesive to the groove between the lower protrusions 113 of the joint fiber plate 101;
(4) anchors to reach the interior of the concrete structure 150 of the old tunnel through the lower projection 113 and the reinforcing waterproof fiber plate 100 of the joint fiber plate 101 from the upper surface of the joint fiber plate 101 A second anchor installation step of tableting the bolt 141 and fastening the anchor nut 142;
(5) reinforce the voids 114a between the reinforcing waterproofing fiber board 100 and the concrete structure 150 of the old tunnel, or the voids 114b between the reinforcing waterproofing fiber board 100 and the joint fiberboard 101, respectively. Resin injection step of injecting the adhesive resin;
The construction process will be described again with reference to FIGS. 5B and 5C. The anchor bolt 141 and the anchor nut 142 to the concrete structure 150 of the old tunnel is successively attached to the reinforcing waterproof fiber plate 100. At this time, the contact portion of the lower protrusion 112 and the concrete structure 150 by applying an adhesive adhesive contact, the anchor bolt 141 is a lower protrusion 112 at the upper surface of the upper projection 111 of the reinforcing waterproof fiberboard 100 Penetrating to the lower surface, it is inserted into the concrete structure 150 is installed. Next, the joints are joined to the joint fiber plate 101 such that the upper protrusion 111 of the subsequently constructed site is inserted into the groove between the lower protrusions 113 of the joint fiber plate 101, and the anchor bolt 141 is connected to the joint fiber plate 101. It is inserted into the concrete structure 150 to be fixed so as to penetrate the lower protrusion 113 in the upper surface of the). At this time, the contact portion of the lower protrusion 113 and the reinforcing waterproofing fiber plate 100 is applied by applying an adhesive close contact construction.

When the reinforcing waterproofing fiber board 100 and the joint fiber board 101 are constructed as described above, a void 114a is formed between the reinforcing waterproofing fiber board 100 and the concrete structure 150, and the joint fiberboard 101 and the reinforcing waterproofing are formed. A gap 114b is formed between the upper protrusions 111 of the fiber plate 100. When the old tunnel requires reinforcement, adhesive resin is injected into the pores 114a and the pores 114b to integrate the reinforcement waterproof fiberboard 100 and the concrete structure 150.

If the old tunnel only needs waterproofing, after completion of the first waterproofing by conventional waterproofing methods such as induction waterproofing and waterproofing by crack repair, construct the reinforcement waterproofing fiber board 100 and the joint fiber board 101 as described above. And the space | gap 114a and the space | gap 114b are kept empty. In this way, when water leaks in a specific part in the future, water leaked only to the pores 114a or 114b adjacent to the part flows, so that the leaked part can be easily confirmed, and only the part can be repaired if necessary. In addition, even if a leak occurs, the leaking water is blocked by the fiber board and does not directly enter the inside of the tunnel, and thus does not directly affect the use of the tunnel.

5d is a cross-sectional view of a tunnel in which waterproofing, repairing, and reinforcing are simultaneously performed using a reinforcement waterproof fiber board 100 and a joint fiber board 101 as another construction example of the present invention. After the reinforcement waterproof fiber board 100 and the joint fiber board 101 are constructed in the same manner as above, the adhesive resin is injected into the voids 114a, and the voids 114c are kept empty. The portion of the pore 114a into which the adhesive resin is injected is a portion that mainly requires reinforcement, and the portion of the pore 114c that is maintained in an empty state is a portion that does not need much reinforcement and is mainly intended for waterproofing. As described above, it is possible to divide the inside of one tunnel into a part requiring reinforcement and a part requiring waterproofing, and construction accordingly is possible. 5D is a construction example, which of the various pores can be changed as many as possible depending on the field situation to use the reinforcement or waterproof. The pore size can also be varied to suit the site situation.

As described above, the present invention overcomes the limitations of the conventional tunnel waterproofing method, and provides a method for simultaneously exhibiting waterproofing and reinforcing effects, and a material used therein, and a predetermined time after the waterproofing work is performed, the tunnel Even if a leak occurs in the concrete structure constituting the structure, the leak is not prevented from directly entering into the tunnel, and it is possible to waterproof the old tunnel without causing an immediate obstacle to the tunnel use due to the leak. Reinforcement could also be provided. In addition, in one tunnel, the parts that need waterproofing and the parts that need reinforcement were selected, and the waterproofing method and the reinforcing method were applied respectively, so that they could be carried out simultaneously in one construction.

Claims (10)

Steel sheet layer; One-way fiber layer is impregnated with a resin laminated on the upper surface of the steel sheet layer; And, The unidirectional fiber layer is impregnated with a resin laminated on the lower surface of the steel sheet layer; Consists of including The stacked top surface further includes an upper protrusion protruding from both edges along the fiber direction, and a veil layer impregnated with resin and stacked on the top surface between the upper protrusions. The laminated bottom surface is provided with a lower protrusion protruding from both edges along the fiber direction; and the lower layer between the lower protrusion is the layer of the bale impregnated with a resin laminated; reinforcement waterproof fiber board further comprises. In claim 1, A fiber mesh layer impregnated with a resin and laminated on an upper surface of the unidirectional fiber layer laminated on the upper surface of the steel sheet layer; The unidirectional fiber layer is impregnated with a resin laminated on the upper surface of the fiber mesh layer; The fiber mesh layer is impregnated with a resin laminated on the lower surface of the one-way fiber layer laminated on the lower surface of the steel sheet layer; And, The unidirectional fiber layer is impregnated with a resin laminated on the lower surface of the fiber mesh layer positioned below the steel sheet layer; Reinforcement waterproof fiberboard characterized in that it further comprises. In claim 2, As the material of the unidirectional fiber and the fiber mesh, any one kind of glass fiber, aramid fiber, or carbon fiber is used, or two or more kinds thereof are mixed and used. Reinforcing waterproofing fiberboard, characterized in that the material of the bale is used any one of polyester veil, glass veil, aramid veil, carbon veil, or nylon veil. In claim 3, Particles made of any one of silica sand, blast furnace slag, or garnet, or a mixture of two or more kinds are integrally attached to the outer surface of the bale layer laminated on the upper surface or the lower surface of the reinforcement waterproof fiberboard. Reinforcement waterproof fiberboard characterized in that it is. Steel sheet layer; One-way fiber layer is impregnated with a resin laminated on the upper surface of the steel sheet layer; And, The unidirectional fiber layer is impregnated with a resin laminated on the lower surface of the steel sheet layer; Consists of including The stacked bottom surface further includes a lower protrusion protruding from both edges along the fiber direction; and a veil layer impregnated with resin and laminated on the bottom surface between the lower protrusions. The veil layer is further included; the bale layer is impregnated with a resin laminated on the laminated top surface. In claim 5, A fiber mesh layer impregnated with a resin and laminated on an upper surface of the unidirectional fiber layer laminated on the upper surface of the steel sheet layer; The unidirectional fiber layer is impregnated with a resin laminated on the upper surface of the fiber mesh layer; The fiber mesh layer is impregnated with a resin laminated on the lower surface of the unidirectional fiber layer laminated on the lower surface of the steel sheet layer; And, The unidirectional fiber layer is impregnated with a resin laminated on the lower surface of the fiber mesh layer positioned below the steel sheet layer; Joint fiberboard, characterized in that it is further included. In claim 6, As the material of the unidirectional fiber and the fiber mesh, any one kind of glass fiber, aramid fiber, or carbon fiber is used, or two or more kinds thereof are mixed and used. The material of the veil is a joint fiber board, characterized in that any one of polyester veil, glass veil, aramid veil, carbon veil, or nylon veil is used. In claim 7, Particles made of any one of silica sand, blast furnace slag, or garnet, or a mixture of two or more kinds are integrally attached to the outer surface of the bale layer laminated on the upper or lower surface of the joint fiber board. Joint fiberboard characterized in that. Steel sheet layer; One-way fiber layer is impregnated with a resin laminated on the upper surface of the steel sheet layer; And, The unidirectional fiber layer is impregnated with a resin laminated on the lower surface of the steel sheet layer; Consists of including The stacked top surface further includes an upper protrusion protruding from both edges along the fiber direction, and a veil layer impregnated with resin and stacked on the top surface between the upper protrusions. The laminated bottom surface is provided with a lower protrusion protruding from both edges along the fiber direction; and a lower layer between the lower protrusions, the veil layer impregnated and stacked in a resin; Steel sheet layer; One-way fiber layer is impregnated with a resin laminated on the upper surface of the steel sheet layer; And, The unidirectional fiber layer is impregnated with a resin laminated on the lower surface of the steel sheet layer; Consists of including The stacked lowermost surface further includes a lower protrusion protruding from both edges along the fiber direction; and a lower veil layer impregnated with resin and laminated on the lowermost surface between the lower protrusions. As a method of waterproofing and reinforcing an old tunnel by using a joint fiber board further comprising; Adhering the reinforcing waterproofing fiberboard to attach the lower protrusion of the reinforcing waterproofing fiberboard using an adhesive to the concrete structure of the old tunnel; A first anchor installation step of fixing the anchor bolts and fastening the anchor nuts to reach the interior of the concrete structure of the old tunnel through the lower projections from the upper projections of the reinforcement waterproof fiberboard; A joint fiber plate adhering step of inserting an upper protrusion of an adjacent reinforcing waterproofing fiber plate using an adhesive into a groove portion between the lower protrusion of the joint fiber plate; And, A second secondary anchor installation step of tableting the anchor bolt to fasten the anchor nut to reach the interior of the concrete structure of the old tunnel through the lower protrusion of the joint fiber board and the reinforcement waterproof fiber board at the upper surface of the joint fiber board; Waterproofing and reinforcement method of the old tunnel, characterized in that it comprises a. In claim 9, A resin injection step of injecting a reinforcing adhesive resin into a selected pore by selecting a place where reinforcement is required among the pores between the reinforcing waterproofing fiber board and the concrete structure of the old tunnel or the space between the reinforcing waterproofing fiber board and the joint fiber board; Waterproofing and reinforcement method of the old tunnel, characterized in that it further comprises.

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