JPH08170497A - Tunnel water leakage repairing method - Google Patents

Abstract

PURPOSE: To facilitate construction in a tunnel water leakage repairing method for preventing leakage generated in a tunnel and draining appropriately. CONSTITUTION: The inner wall surface of a tunnel 1 is covered with plural rectangular leakage repairing panels 2 connected vertically and laterally, and the leakage repairing panels 2 are covered with a cement composition 6. In the leakage repairing panel 2, a net body 4 is fitted and integrated on the surface of a waterproof sheet 3. The end parts of the adjacent leakage repairing panels 2 are overlapped with the lower edge 31 and side edge 32 of the waterproof sheets 3 protruding from the end parts of the leakage repairing panels 2, and at least the side edge 32 and the end parts, overlapped with the side edge 32, of the adjacent leakage repairing panels are bonded. Water leaking from the inner wall surface of the tunnel 1 thereby flows between the waterproof sheets 3 and the inner wall surface of the tunnel 1 so as to be led downward without exuding from the connected part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel water leakage repair method for preventing water leakage in a tunnel and appropriately draining water.

[0002]

2. Description of the Related Art Conventionally, as a method for repairing water leakage from an inner wall surface of an existing tunnel due to deterioration, an inner wall surface of the tunnel is covered with a waterproof sheet, and then cement such as concrete or mortar is overlaid thereon. The composition is coated by plastering with a plaster iron or by applying it with a spray gun, or as another method, first the inner wall surface of the tunnel is covered with a waterproof sheet, and then the metal sheet is applied from the outside of the sheet. The mesh of the sheet and the metal mesh are in close contact with the inner wall surface of the tunnel, and the metal mesh is held by a plurality of strip steels, and the sheet and the metal mesh are connected by a binding metal fitting. ,
There has been a method in which a strip steel is fixed to an inner wall surface of a tunnel at a plurality of points, and a cement composition is coated on the steel strip.

[0003]

However, in the above-mentioned method for repairing water leakage, the former is not easy to handle at the construction site because a thin synthetic resin sheet having flexibility is usually used as the waterproof sheet. Also, there is a risk of breakage, such as tearing, depending on handling. Further, in the latter method, the waterproof sheet is brought into contact with the inner wall surface of the tunnel, and then the metal net is put on the sheet, and at the same time, it is fixed by the binding metal fittings. The net made was not easy to handle and each work was site-friendly, so the construction was complicated and time consuming, and many workers were required. Furthermore, since the waterproof sheet and the metal net are not originally integrated, and are only fixed only near the binding metal fittings, the waterproof sheet and the metal netting may be separated from the binding metal fittings. It does not necessarily adhere to the inner wall surface of the tunnel and tends to hang down. Therefore, it is difficult to control the thickness of the cement composition obtained by coating the cement composition on these, and it is also possible to coat thickly at once. I was forced to cover it twice because I could not.

Therefore, the present invention is intended to solve the above problems and provide a method for repairing water leakage in a tunnel which is easy to construct.

[0005]

In order to achieve the above object, the present invention has the following constitution. That is, the tunnel leakage repair method according to claim 1 of the present invention is
A tunnel in which a plurality of rectangular water leakage repair panels are connected and covered vertically and horizontally on the inner wall surface of the tunnel, and then the cement composition is coated on the water leakage repair panels to repair water leakage generated from the inner wall surface of the tunnel. The water leakage repair panel, wherein the water leakage repair panel comprises a waterproof sheet with a net body adhered to and integrated with the surface of the water leak repair panel, and the bottom edge of the waterproof sheet from the end of the water leak repair panel, One of the side edges is projected, and the edges of the water leakage repair panel adjacent to the projected lower edge and side edges are polymerized, and at least the side edges and the side edges are polymerized. It is characterized in that the ends of adjacent panels for repairing water leakage are adhered to each other.

According to a second aspect of the present invention, there is provided a method for repairing water leakage from a tunnel, wherein a plurality of rectangular water leakage repair blocks are vertically and horizontally connected to each other on the inner wall surface of the tunnel so as to cover the inner wall surface of the tunnel. A method for repairing water leakage in a tunnel for repairing water leakage, wherein the water leakage repair block comprises a mesh composition adhered to and integrated with a cement composition on the surface of a waterproof sheet and a cement composition on the surface of the mesh object. Object is covered, the lower edge of the waterproof sheet and one of the left and right side edges are projected from the end of the water leakage repair block, and the projected lower edge and the side edge respectively correspond to each other. It is characterized in that an end portion of an adjacent water leak repair block is polymerized, and at least the side edge and the end portion of the adjacent water leakage repair block superposed thereon are adhered.

[0007]

According to the method for repairing water leakage in a tunnel according to the present invention, a panel for water leakage repair in which a mesh is adhered and integrated on the surface of a waterproof sheet is used. The waterproof mesh sheet improves the strength of the waterproof sheet and is easy to handle, and when the cement composition is coated on the waterproof sheet, the cement composition tends to adhere.

In addition, the edges of the water leakage repair panel adjacent to the lower edge and the side edge of the protruding waterproof sheet are polymerized, and at least the side edge and the adjacent water leakage superposed thereon are polymerized. Since the end of the repair panel is adhered, a waterproof sheet is also interposed between each connecting part and the tunnel inner wall surface, and leaked water does not seep out from each connecting part. Water leaks that occur in tunnels can be effectively prevented and proper drainage can be performed.

That is, between the upper and lower water leakage repair panels, the upper edge of the lower water leakage repair panel is superposed on the lower edge of the waterproof sheet protruding from the upper water leakage repair panel. Leaked water does not seep out from the upper and lower connecting parts, is guided downward through the waterproof sheet and the inner wall surface, and between the left and right connected water leakage repair panels, one of the water leakage repairs is performed. The side edge of the other water leakage repair panel is polymer-bonded to the side edge of the waterproof sheet protruding from the panel for water leakage, and the leaked water does not seep out from its left and right connecting portions.

According to the second aspect of the present invention, there is provided a method for repairing water leakage in a tunnel, in which a mesh body is adhered and integrated on the surface of the waterproof sheet via a cement composition, and the surface of the mesh body is also integrated. Since the block for water leakage repair coated with the cement composition is used in the above, the strength of the waterproof sheet is improved and is easy to handle as compared with the panel for water leakage repair used in the invention of claim 1 above. Since it is not necessary to further coat the cement composition on it, the construction is easy and the construction can be made uniform.

Further, the ends of the water leakage repair block adjacent to the lower edge and the side edge of the protruding waterproof sheet are polymerized, and at least the side edge and the adjacent water leakage superposed thereon are polymerized. Since the end portion of the repair block is adhered, water leaking from the tunnel inner wall surface does not seep out from the upper and lower connecting portions, as in the case of the above-mentioned first aspect of the invention.
It is guided down between the waterproof sheet and the inner wall surface of the tunnel, and does not exude from the left and right connecting parts.
Water leaks that occur in tunnels can be effectively prevented and proper drainage can be performed.

[0012]

Embodiments of the present invention will now be specifically described with reference to the drawings. First, FIGS. 1 to 3 will be described. FIG. 1 is a cross-sectional view showing an embodiment of the method for repairing water leakage of a tunnel according to the present invention described in claim 1, FIG. 2 is a partially enlarged cross-sectional view of FIG. 1, and (a) shows left and right connecting portions. A cross-sectional view, (b) is a cross-sectional view showing the upper and lower connecting portions.
FIG. 2 is a perspective view of the water leakage repair panel used in FIG. 1.

Referring to FIGS. 1 to 3, reference numeral 1 denotes a tunnel for repairing water leaks. A plurality of rectangular water leak repairing panels 2 are provided on the inner wall surface of the tunnel 1 so as to be vertically and horizontally connected and covered.
The cement composition 6 is coated on the water leakage repair panel 2. As shown in FIG. 3, the water leakage repair panel 2 is formed by integrally adhering a mesh body 4 which is slightly smaller than the waterproof sheet 3 on the surface of a rectangular waterproof sheet 3.
Further, the lower end edge 31 of the waterproof sheet 3 and one of the left and right side edge 32 are projected from the edge of the water leakage repair panel 2, and the adhesive 5 or the adhesive 5 is applied to the projected side edge 32. Adhesive or the like is applied.

Then, as shown in FIG. 2, the lower edge 3 of the waterproof sheet 3 which is projected from the one water leakage repair panel 2.
1 and the side edge 32 are adjacent to each other, and a panel 2 for repairing water leakage is provided.
The side edges 32 and the edges of the adjacent water leakage repair panel 2 that are overlapped with the side edges 32 are bonded together while the edges of the above are overlapped. That is, the adjacent upper and lower water leakage repair panels 2 are sequentially connected from the upper side to the lower side, so that the lower edge 3 of the waterproof sheet 3 projected from the upper water leakage repair panel 2 is connected.
1, the upper end portion of the lower water leakage repair panel 2 is superposed, and the adjacent left and right water leakage repair panels 2 are sequentially connected in the direction of the protruding side edge 32, thereby The side edge portion 32 of the waterproof sheet 3 protruding from the water leakage repair panel 2 is polymer-bonded to the side edge portion of the other water leakage repair panel 2.

The water leakage repair panel 2 is pre-marked with a fixing metal fitting fixing position for fixing the water leakage repair panel 2 to the inner wall surface of the tunnel 1, and the water leakage repair panel 2 is attached to the tunnel 1. Along the inner wall of
Fixing metal fittings (not shown) such as anchor bolts and concrete nails are driven from the position of the marking 21, and the anchor bolt is fixed by screwing a nut to the bolt.

Examples of the waterproof sheet 3 include polyethylene, polypropylene, polyurethane, vinyl chloride, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, synthetic resin sheet such as polystyrene, synthetic rubber sheet, metal sheet, etc. The sheet is not particularly limited as long as it has a property, but a synthetic resin sheet or a synthetic rubber sheet which is excellent in durability, easy to manufacture and inexpensive is generally used. As the mesh body 4, a metal wire mesh such as expanded metal is generally used because it is lightweight and easy to shape along the inner wall surface of the tunnel 1. However, a metal plate is pressed. It may be a punching metal having a large number of holes formed therein and is not particularly limited, and may be made of synthetic resin. The waterproof sheet 3 and the net-like body 4 are integrated by welding or by an appropriate method such as adhesion with an adhesive or a pressure-sensitive adhesive.

The cement composition 6 coated on the water leakage repair panel 2 is not particularly limited as long as it contains cement, such as concrete, mortar, polymer concrete, and polymer mortar. Known ones are widely used. In addition, a paint may be applied to the surface of the cement composition 6 in order to impart gloss or the like.

Next, FIGS. 4 to 6 will be described. FIG. 4 is a sectional view showing an embodiment of the method for repairing water leakage of a tunnel according to the present invention described in claim 2, and FIG. 5 is a partially enlarged sectional view of FIG. 4, in which (a) shows left and right connecting portions. A sectional view, (b) is a sectional view showing the upper and lower connecting portions, and FIG. 6 is a perspective view of the water leakage repair block used in FIG.

In this embodiment, as shown in FIG. 6, the mesh body 4 is adhered and integrated on the surface of the waterproof sheet 3 via the cement composition 6, and the cement composition 6 is formed on the surface of the mesh body 4. The water leakage repair block 7 coated with is used, and the lower end edge 31 of the waterproof sheet 3 and either the left or right side edge 32 are projected from the end of the water leakage repair block 7, and the projection The side edge 32 thus formed is coated with an adhesive 5, an adhesive or the like. The ends of the water leakage repair block 7 adjacent to the projecting lower end edge 31 and the side edge 32 are polymerized, and the side edge 32 and the adjacent water leakage repair block 7 superposed thereon are superposed. The edges are glued together.

Therefore, in the embodiment shown in FIGS. 1 to 3, the leak repair panel 2 as shown in FIG. 3 is used, but in this embodiment, the leak repair block 7 as shown in FIG. 6 is used. In this case, the strength of the waterproof sheet 3 is improved more easily than the panel 2 for repairing water leakage shown in FIG. 3 and is easy to handle, and it is not necessary to coat the cement composition. The construction is easy, and the construction can be made uniform.

As the waterproof sheet 3 and the cement composition 6 forming the water leakage repair block 7, those exemplified in the water leakage repair panel 2 are used. Further, as described above, it is not necessary to further coat the surface of the water leakage repair block 7 with a cement composition such as mortar, but since the connecting portion of the water leakage repair block 7 appears in the appearance, the surface of the water leakage repair block 7 If necessary, the cement composition may be coated or a paint or the like may be applied in order to finish it even more smoothly and to impart gloss.

The block 7 for repairing water leakage is preliminarily formed with a hole 71 for fixing a fixture, and a fixture (not shown) is driven through the hole 71 for fixing the fixture on the inner wall surface of the tunnel 1. Then, the caulking agent is filled so that water leaking from the fixing metal fitting hole 71 does not seep out. The water leakage repair block 7 is preferably curved in advance along the inner wall surface of the tunnel 1.

[0023]

According to the method for repairing water leakage of a tunnel according to the first and second aspects of the present invention, water leaking from the inner wall surface of the tunnel does not seep out from the connecting portions on the upper and lower sides and the left and right sides.
The water is guided downward between the waterproof sheet and the inner wall surface of the tunnel, and the water leakage in the tunnel is effectively prevented, so that proper drainage can be performed. In addition, since the waterproof sheet uses a leak repair panel and a leak repair block protected by a mesh or cement composition,
The strength of the waterproof sheet is improved, the handling is easy, and the construction is easy, and the construction can be made uniform.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the method for repairing water leakage of a tunnel according to the present invention described in claim 1.

FIG. 2 is a partially enlarged sectional view of FIG. 1, in which (a) is a sectional view showing left and right connecting portions, and (b) is a sectional view showing upper and lower connecting portions.

3 is a perspective view of a water leakage repair panel used in FIG. 1. FIG.

FIG. 4 is a sectional view showing an embodiment of the method for repairing water leakage of a tunnel according to the present invention described in claim 2;

5 is a partially enlarged sectional view of FIG. 4, in which (a) is a sectional view showing left and right connecting portions, and (b) is a sectional view showing upper and lower connecting portions.

6 is a perspective view of the water leakage repair block used in FIG. 4. FIG.

[Explanation of symbols]

 1 Tunnel 2 Panel for Water Leakage Repair 3 Waterproof Sheet 31 Bottom Edge 32 Side Edge 4 Mesh 5 Adhesive 6 Cement Composition 7 Water Leak Repair Block

Claims (2)

[Claims] 1. An inner wall surface of a tunnel is provided with a plurality of rectangular water leakage repair panels which are vertically and horizontally connected to each other. Then, the water leakage repair panels are coated with a cement composition to generate water from the inner wall surface of the tunnel. A method for repairing water leakage in a tunnel for repairing water leakage, wherein the water leakage repair panel has a mesh-like body adhered to and integrated with the surface of a waterproof sheet, and the waterproof sheet is cut from an end portion of the water leak repair panel. The lower edge and one of the left and right side edges are projected, and the edges of the water leakage repair panel adjacent to the projected lower edge and the side edge are polymerized, and at least the side edge is formed. A method for repairing water leakage in a tunnel in which an edge and an end portion of an adjacent panel for water leakage repair overlapped with the edge are bonded. 2. A method for repairing leakage of water in a tunnel, wherein a plurality of rectangular blocks for water leakage repair are vertically and horizontally connected and covered on the inner wall surface of the tunnel to repair water leakage generated from the inner wall surface of the tunnel. The repair block is such that the mesh body is adhered and integrated on the surface of the waterproof sheet via the cement composition and the surface of the mesh body is coated with the cement composition, and the end portion of the water leakage repair block is used. The lower end edge of the waterproof sheet and the left or right side edge are projected,
The end portions of the water leakage repair block adjacent to the protruding lower edge and the side edge are overlapped with each other, and at least the side edge and the end portion of the adjacent water leakage repair block overlapped therewith. A method for repairing water leakage in a tunnel to which is adhered.