JPH083200B2 - Repair structure and repair method for inner wall surface of concrete tank - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair structure and a repair method for covering an inner wall surface of a concrete structure tank such as a sewerage facility with a lining plate.

[0002]

2. Description of the Related Art Sewage treatment tanks such as sewer facilities and tanks such as septic tanks are generally made of concrete. Further, these tanks have a sealed structure so that gas and the like generated from dirty water in the tanks do not leak out. However,
Due to the chemical change caused by bacteria in sewage and sewage sludge, concrete on the inner wall of the tank will be corroded and damaged. Therefore, in order to re-form the inner wall surface of the tank, repair work was performed by spreading a plastic lining plate on the inner wall surface of the tank.

[0003]

However, in the repair structure in which the above-mentioned conventional lining plate is expanded, a large number of substantially rectangular plates are used, and these are joined at the edge portions by adhesion or the like to cover the front surface of the inner wall. However, since the joints of each plate and joints such as projecting corners and entering corners due to the beams in the tank are joints with a gap, use a filler such as resin to cover the joints. It had to be closed, the work was complicated, and there was the disadvantage that construction time was required.

Further, when the lining plate is stretched on the concrete inner wall surface, the lining plate is temporarily fixed to an anchor bolt which is preliminarily driven into the concrete inner wall surface. However, the distance between the lining plate and the inner wall surface depends on the anchor bolt. Since it is set by the nut to be screwed, if the position of the nut to be screwed to each anchor bolt is not constant, the covering state with the lining plate may not be smooth, and it takes time and labor to process the joints mentioned above. There is a drawback that.

Therefore, in order to solve the above problems, the present invention provides a method for easily repairing the inner wall surface of concrete of a tank which is corroded and damaged by sewage in a sewerage facility and the like, and covering it with a lining plate. It is an object of the present invention to provide a repair structure for the inner wall surface of a concrete structure tank that can reliably prevent recurrence such as corrosion.

[0006]

Means for achieving the above object will be described below with reference to the drawings corresponding to the embodiments. The repair structure 1 for the inner wall surface of the tank of the concrete structure according to the present invention comprises a large number of rib pieces 3 having a bulge 3a at the tip.
Is a plastic lining plate 2 integrally formed on one surface 2a facing the inner wall surface W of the concrete-structured tank T in parallel with each other, and an insertion groove 7 is formed at least on opposite side edges. A connecting plate 6 that connects the lining plates 2 to each other while the edge portion of the lining plate 2 is inserted, anchor bolts 12 that are multiply planted on the inner wall surface W at predetermined intervals, and are attached to the anchor bolts 12. A support member 10 including a support piece 13 for supporting the lining plate 2 at a predetermined distance from the inner wall surface W;
It is characterized by comprising a filler 14 filled in a gap between the inner wall surface W formed by the support member 10 and the lining plate 2.

The lining plate 2 may be formed of a colored or transparent resin, and the bulging portion 8 at the tip is formed on one surface 6a of the connecting plate 6 facing the inner wall surface W.
The rib piece 8 having a may be integrally formed, and the connecting plate 6 includes a flat connecting plate 6A and a corner connecting plate 6B whose central portion is bent at a predetermined angle. May be composed of Further, at the edge portion on the side of the one surface 6a facing the inner wall surface W of the insertion groove 7 of the connection plate 6,
The receiving piece 9 may be integrally formed so as to extend continuously from the edge portion.

Further, according to the method of repairing the inner wall surface W of the concrete-structured tank of the present invention, a large number of support members 10 are planted at predetermined intervals on the inner wall surface W of the concrete-structured tank T, and the bulging portion 3a is formed at the tip. A plurality of rib pieces 3 each having one side 2a parallel to each other and integrally formed with a plastic lining plate 2, and the rib pieces 3 are opposed to the inner wall surface W, and the lower side of the inner wall surface W And tentatively fixing it to the support member 10, and filling the gap between the inner wall surface W of the support member 10 and the lining plate 2 with the filling material 14 from the upper edge side of the lining plate 2 to bury the rib piece 3. After that, the connecting plate 6 is inserted into the upper edge of the lining plate 2, and the lining plate 2 is further connected to the connecting plate 6 to form the inner wall surface W.
The rib pieces 3 are made to oppose each other on the upper side of the rib and temporarily fixed to the support member 10, and then a filling material 14 is filled in the gap between the inner wall surface W and the lining plate 2 by the support member 10 to form the rib pieces. 3 is buried, the filling of the filling material 14 is repeated while sequentially inserting the connecting plate 6 and connecting the lining plate 2 to cover the entire inner wall with the lining plate 2 and cure the filling material 14. Therefore, the concrete inner wall surface W is repaired.

Further, in this repairing method, a large number of supporting members 10 are planted at predetermined intervals on the inner wall surface W of the concrete structure tank T, and a large number of rib pieces 3 having bulged portions 3a at one end are provided on one surface. After connecting the connecting plate 6 to the upper edge of the plastic lining plate 2 integrally formed in parallel with 2a, the lining plate 2 is made to face the inner wall surface W with the rib pieces 3 facing each other, and The lining plate 2 is spread on the lower side of the wall surface W and temporarily fixed to the support member 10, and the lining plate 2 is provided in the gap between the inner wall surface W and the lining plate 2 by the support member 10.
After filling the filling material 14 from the upper edge side and burying the rib piece 3, the lining plate 2 having the rib piece 3 is further connected to the connection plate 6, and the rib is provided on the upper side of the inner wall surface W. After the pieces 3 are opposed to each other and stretched, and temporarily fixed to the support member 10, a filling material 14 is filled in a gap between the inner wall surface W and the lining plate 2 by the support member 10 so that the rib pieces 3 are buried, and sequentially. The filling of the filling material 14 is repeated while the connection plate 6 is inserted and the lining plate 2 is connected.
The inside wall surface W of the concrete may be covered with the lining plate 2 and the inner wall surface W of the concrete may be repaired by hardening the filling material 14.

[0010]

First, a large number of anchor bolts 12 forming the support member 10 are planted at predetermined intervals on the inner wall surface W of the concrete structure tank T, and the support pieces 13 are attached to these anchor bolts 12. Next, for these support members 10,
A large number of rib pieces 3 having a bulge 3a at one end are provided on one surface 2
The rib pieces 3 are made to face the inner wall surface W so as to be temporarily fixed to the plastic lining plates 2 that are integrally formed so as to be parallel to each other and are extended to the lower side of the inner wall surface W. The lining plate 2 is formed in the gap between the inner wall surface W formed by the support member 10 and the lining plate 2.
The filling material 14 is filled from the upper edge side to bury the rib piece 3.

Next, a connecting plate 6 is inserted into the upper edge of the lining plate 2, the lining plate 2 is further connected to the connecting plate 6, and the rib piece 3 is opposed to the upper side of the inner wall surface W. Then, the lining plate 2 is expanded and temporarily fixed to the support member 10. Then, the gap between the inner wall surface W formed by the support member 10 and the lining plate 2 is filled with the filling material 14 to bury the rib piece 3.

Then, the filling of the filling material 14 is repeated while sequentially inserting the connecting plate 6 and connecting the lining plate 2 to cover the entire surface of the concrete inner wall with the lining plate 2.
The inner wall surface W is completely repaired by covering the inner wall surface W and hardening the filling material 14.

In the above-described construction procedure, the connecting plate 6 is previously attached to the lining plate 2 before the lining plate 2 is expanded.
The procedure may be such that the concrete inner wall surface W is expanded after being inserted and attached to the upper edge of the concrete.

Further, the corner connecting plate 6B having a bent central portion is used to correspond to the uneven portion such as a beam on the concrete inner wall surface W of the tank T.

[0015]

FIG. 1 is a schematic side sectional view showing an embodiment of a structure for repairing the concrete inner wall surface of a tank according to the present invention. The repair structure 1 of the present invention includes a lining plate 2, a connecting plate 6, and
The support member 10 and the filler 14 are included.

First, the lining plate 2 is made of hard plastic such as vinyl chloride resin, for example, 300 mm × 1.
It is formed in a substantially strip shape of 960 mm, and as shown in FIG.
A large number of rib pieces 3 parallel to each other are integrally formed on one surface 2a. The forming direction of each rib piece 3 is formed along the longitudinal direction of the plate surface, and the tip end of each rib piece 3 is formed with a bulging portion 3a having a substantially elliptical cross section.

Further, as shown in FIG. 2, both left and right edges of the lining plate 2 are bent in the same direction as the rib pieces 3 are formed, and the tips are hooked on the outer side surfaces thereof. The connecting piece 4 formed in a shape is formed to extend to the other surface side 2b. Then, as shown in FIG. 3, this lining plate 2 is connected to other lining plates 2 by connecting pieces 4 at both end edges.
Connected to

For connection, the connection piece 4 is fitted and inserted into a joint member 5 having a substantially U-shaped cross section and having a groove widening as shown in FIG. The plates 2 are connected in the width direction to obtain a lining plate 2 having a desired width. According to this joint member 5, connection can be performed from the surface side which is the surface of the lining plate 2.

As shown in FIG. 4, the left and right edges of the lining plate 2 are bent in the same direction as the rib pieces 3 are formed, and the tips thereof are hooked. Alternatively, the connection piece 4'formed in the above may be used. This connection piece 4 '
In this case, as shown in FIG. 5, a joint member 5 ′ having a substantially U-shaped cross section, which has a groove that widens in the interior and in which a sealing material 5a ′ is mounted, is used to connect to each joint member 5 ′. The lining plates 2 are connected to each other in the width direction by fitting the respective connection pieces 4'of the lining plates 2 into each other.

Next, the connecting plate 6 is made of plastic such as vinyl chloride resin like the lining plate 2 and is composed of a flat connecting plate 6A and a corner connecting plate 6B. The plane connecting plate 6A is formed in a flat plate shape, and
As shown in FIG. The flat connecting plate 6A has insertion grooves 7 formed in a substantially U-shaped cross section on both side edges in the longitudinal direction. This insertion groove 7
Has a step portion formed in the groove, and the groove width thereof is set to be substantially equal to or slightly smaller than the thickness of the lining plate 2.

Further, a rib piece 8 having a bulge 8a at the end similar to the lining plate 2 is integrally formed on one surface 6Aa of the flat connecting plate 6A facing the concrete inner wall surface W. The rib pieces 8 are formed along the longitudinal direction of the flat connecting plate 6A.

As shown in FIG. 7, the corner connecting plate 6B is formed by bending two 45 ° portions at the central portion in the width direction.
It has a cross-sectional shape with the direction of both insertion grooves 7 set to 90 °,
This bending direction, which is formed in a substantially strip shape in which the cross-sectional shape is continuous, is the projected corner portion connection plate 6B1 when the side 6Ba on which the rib piece 8 is formed is formed, and the rib piece 8 is formed. In the case where it is bent and formed on the other surface 6Bb side which is not formed, it becomes the entry corner connection plate 6B2. If the rib pieces 8 are not formed, these projected corner and incoming corner connection plates serve as both projected corners and incoming corners.

As shown in FIGS. 1 and 7, the connecting plates 6A and 6B are formed by inserting the both insertion grooves 7 on one surface side 6Aa, 6Ba facing the concrete inner wall surface W or one insertion groove. The receiving piece 9 may be integrally formed so as to extend continuously from the edge portion.

Next, the support member 10 has the embedded nut 11
, An anchor bolt 12, and a support piece 13. The embedded nut 11 is driven and embedded in the concrete inner wall surface W of the tank T at predetermined intervals. The anchor bolt 12 has a thread groove formed over the entire length,
It is screwed to the embedded nut 11 and fixed so as to extend substantially perpendicularly to the concrete inner wall surface W. Also, support piece 1
3 is formed in a substantially cylindrical shape with flanges 13a formed at both ends, and a hole passing through the center is formed with a female screw. Then, it is screwed to the anchor bolt, and the flange portion 13a at one end contacts the concrete inner wall surface W. In addition,
The length of the support piece 13 is set to a length that is the thickness of the filling material 14 described later.

As the filler 14, a low-viscosity material such as mortar or cement milk, which has good adhesion to the concrete which is the inner wall surface W of the tank T, is used.

Next, a method of repairing the repair structure 1 having the above structure, that is, a procedure for repairing the inner wall surface W of the concrete structure tank T will be described.

First, the surface of the inner wall of the concrete of the tank T is shaved to remove the corroded portions and the like to form a substantially flat surface.

Next, the embedding nut 11 of the supporting member 10 is driven into the concrete inner wall surface W to embed it. The embedded nuts 11 are arranged at substantially equal intervals from each other, for example, in the vertical and horizontal directions 30.
A large number are continuously embedded in the inner wall surface W so as to be every 0 mm.

Next, an anchor bolt 12 is screwed into the embedded nut 11, and the anchor bolt 12 is planted substantially perpendicular to the concrete inner wall surface W. And
A support piece 13 is screwed onto the anchor bolt 12. In addition, the support piece 13 is provided in advance of the anchor bolt 1 before the anchor bolt 12 is screwed to the embedded nut 11.
It may be screwed to the second.

The support piece 13 is attached so that the flange portion 13a at one end contacts the concrete inner wall surface W.

Next, the lining plate 2 is connected to another lining plate 2 in the width direction at the joint member 5 by the connecting piece 4 at the edge, and the desired width, that is, the inner wall surface W of the tank T is obtained.
Is formed to have a substantially width.

A through hole 2c is formed in the lining plate 2 at a position corresponding to the position of the support member 10.

Next, the connected lining plate 2 is stretched from the lower side of the concrete inner wall surface W so that the rib pieces 8 are in the vertical direction. During expansion, the anchor bolt 1 of the support member 10 is inserted into the through hole 2c formed in the lining plate 2.
2 is penetrated and stretched so as to abut each support piece 13 of the support member 10.

Next, as shown in FIG. 8, a supporting member 20 is appropriately arranged on the other surface 2b side which is the surface side of this lining plate 2, and a temporary fixing member 21 is screwed to the anchor bolt 12. Then, the lining plate 2 is temporarily fixed by the support member 20.

Next, a filler 14 such as mortar is injected into the gap between the inner wall surface W of the concrete by the support piece 13 of the support member 10 and the lining plate 2 from the upper edge side of the lining plate 2. At the time of this injection, the filling material 14 easily flows along the rib pieces 8 by the rib pieces 8 formed on the lining plate 2, and filling without voids is performed. In the filled state, the rib pieces 8 of the lining plate 2 are all buried.

Next, the flat connecting plate 6A of the connecting plate is attached to the upper edge of the lining plate 2. At the time of mounting, the plane connecting plate 6A is performed by setting the surface 6Aa on which the rib pieces 8 are formed on the concrete inner wall surface W side and inserting the upper edge of the lining plate 2 into the insertion groove 7 of the connecting plate 6A.

Next, as in the case of the lining plate 2 described above, the joint members 5 are connected in the width direction, and the lining plates 2 having the through holes 2c formed at the positions corresponding to the positions of the supporting members 10 are planarly connected. It is connected to the plate 6A and is spread on the upper side of the concrete inner wall surface W. In spreading the lining plate 2, the lower edge of the lining plate 2 is connected to the flat connecting plate 6
While being inserted and connected in the insertion groove 7 of A, the anchor bolt 12 of the support member 10 is inserted into the through hole 2c formed in the lining plate 2 in the same manner as the above-described expansion of the lower lining plate 2. , So that the support pieces 13 are brought into contact with each other.

Next, similarly to the lower side lining plate 2 described above, as shown in FIG. 8, the supporting member 20 is appropriately disposed on the other surface 2b side which is the surface side of this lining plate 2 and temporarily The fixing member 21 is screwed onto the anchor bolt 12, and the lining plate 2 is temporarily fixed by the support member 20.

Next, a filling material 14 such as mortar is injected into the gap between the concrete inner wall surface W of the support member 10 and the lining plate 2 from the upper edge side of the lining plate 2 by filling. By this injection, the filling material smoothly flows in by the rib pieces 8 formed on the lining plate 2, and the filling material 14 filled on the lower side is continuously filled and formed. In addition, when the filling material 14 is filled, all the rib pieces 8 of the lining plate 2 are buried.

Then, the above procedure is followed by another inner wall surface W of the tank T.
As shown in FIG. 9, the concrete inner wall surface W of the tank T is entirely covered with the lining plate 2, and the filler 14 is filled in the gap between the lining plate 2 and the inner wall surface W. The filler 14 is hardened.

Incidentally, the four corners in the tank T, the beam portions formed on the ceiling surface, and the like are made to correspond by bending and deforming the lining plate 2 by heating as shown in FIG.
As shown in FIG. 7, the lining plates 2 are connected to each other by using the connecting plate 6B at the inside corner and the outside corner. Also, each connection plate 6
At the intersections of the two, or at the intersections of the joint member 5 and the connecting plate 6 that connect the lining plates 2 to each other, a part of the connecting plate 6 is cut off and connected so as to mesh with each other. Furthermore, when connecting the lining plates 2 with the joint member 5 to form the inner wall width in the same manner, if a multiple of the width length of each lining plate 2 is insufficient, that is, even if a plurality of lining plates are connected. When the length in the width direction does not reach the inner wall width, the adjustment plate 15 as shown in FIG. 11 is connected by the connection plate 6 and adjustment is performed. In this case, a band-shaped sealing material 16 is attached and covered at the joint portion.

After the filling material 14 is hardened, the temporary fixing member 2 screwed to the anchor bolt 12 of the supporting member 10 is attached.
1 is removed, the support material 20 that supports the lining plate 2 is removed, and the anchor bolts 12 projecting from the surface (the other surface 2b) of the lining plate 2 are cut.

A female screw portion 17a is formed at the center of the back surface of the cut anchor bolt 12, and a cap 17 having a spherical surface is screwed on the anchor bolt 1.
The cut end surface of No. 2 is covered up and the repair work is completed. In addition,
The cap 17 is preferably adhesively fixed.

In the above-mentioned embodiment, an example in which the connecting plate 6 is formed in a strip shape has been described, but the connecting plate 6 is not limited to the strip shape. Also, this connecting plate 6
Although the insertion grooves 7 each having a substantially U-shaped cross section are formed on both side edges in the longitudinal direction, the insertion grooves may be formed on both side edges of the longitudinal direction.

Further, in the construction procedure in the above-mentioned embodiment, an example in which the connecting plate 6 (6A) is inserted and connected to the upper edge of the lining plate 2 after the lining plate 2 is expanded and filled with the filling material 14 has been described. However, before the lining plate 2 is expanded, the connection plate 6 may be attached to the upper edge in advance, and the lining plate 2 may be expanded and filled. In this case, the connection plate 6 to be connected in advance is connected to the both insertion grooves 7 on the one surface 6Aa, 6Ba side facing the concrete inner wall surface as shown in FIG. 1 or the edge portion of the one insertion groove 7. If the receiving plate 9 is formed integrally with the connecting plate 6, the receiving plate 9 serves as a guide to the lining plate 2, so that the connecting plate 6 can be easily connected. Since the connection member 6 is also supported by the support member 10 and temporarily fixed and fixed,
The lining plate 2 is securely fixed, and the workability is also improved.

In the above embodiment, the left and right edges of the lining plate 2 are bent in the same direction as the rib piece 8 is formed, and the tip end is formed in a hook shape on the outer side surface thereof. An example of the configuration in which the connected connection piece 4 is formed to extend to the other surface 2b side and the lining plates 2 are connected in the width direction using the joint member 5 having a substantially U-shaped cross section is described.
As shown in FIG. 2, one end edge of the lining plate 2 is bent in the same direction as the rib piece 8, and the hook-shaped connecting piece 4 is formed on the outer surface thereof.
Is formed so as to extend to the other surface 2b side, and the other end edge is formed by the rib piece 8
It is bent in the same direction as and it has a hook-shaped connecting convex piece 4 at the tip.
A may be formed, and the connecting piece 4 and the connecting convex piece 4A may be fitted and connected. In this case, since the joint member 5 is unnecessary, the number of constituent parts can be reduced. The sealing material 4a is mounted in the recess of the connection piece.

Further, in the above embodiment, an example in which the material of the lining plate 2 is a hard vinyl chloride resin has been described, but a hard plastic such as an acrylic resin may be used. When acrylic resin is used as the material, the lining plate 2 can be molded transparently, and it is possible to visually confirm whether the filler has corroded again.

Further, in the above embodiment, the corner connecting plate 6B is used.
In the above description, an example in which the direction of both insertion grooves 7 is set to 90 ° has been described, but the shape is not limited to this angle, and it may be formed by bending at 135 ° as shown in FIG. 13, for example.
In this case as well, it is preferable to form the rib pieces 8 and the receiving pieces 9.

[0049]

As described above, in the structure for repairing the inner wall surface of the concrete structure tank according to the present invention, since the lining plate having the rib pieces is used, the filling material is filled with the ribs. There is an effect that it smoothly flows along the piece and can be filled without forming a void, and that the rib piece has a bulge portion formed at the tip thereof, so that the rib piece is securely fixed to the filling material. Further, since the lining plates are connected to each other by the connection plate having the insertion groove formed therein, the work of connecting the lining plates can be easily performed, and the lining plates can be easily spread. Further, since the lining plate is supported by the support member, the lining plate is always supported at a constant distance from the concrete inner wall surface to be stretched, and the concrete inner wall surface becomes an uneven surface. There is no effect, and there is an effect that it can be formed smoothly. As a result, since the concrete inner wall surface in the tank is covered with the lining plate without any gaps for repairing, there is an effect that the corrosion of the inner wall surface due to sewage or the like is reliably prevented.

Further, if a rib piece having a bulge portion at the tip is integrally formed on one surface of the connection plate which connects the lining plates to each other, which is opposed to the concrete inner wall surface, this connection plate is also the same as the lining plate. In addition, it has the effect of being firmly fixed to the filler.

Further, when the lining plate is formed of a transparent resin, when the filler is corroded after the repair work, the corroded portion can be easily visually recognized and the repaired portion can be minimized. Is possible.

Further, if a corner connecting plate formed by bending this connecting plate at a central portion at a predetermined angle is constructed together with a flat connecting plate, the shape of the tank in which the lining plate is expanded is uneven due to beams or the like. Even if there is a projecting corner part or an entering corner part, by using this connecting plate at these corner parts, the lining plate can be easily expanded and the concrete in this tank can be completely covered by the lining plate. There is an effect that the inner wall surface can be covered.

Further, if the receiving piece is integrally formed at the edge portion on the one surface side of the insertion groove of the connecting plate, the receiving piece serves as a guide for the attachment to the lining plate, and this attaching work is performed. This can be performed easily and surely, and since the support piece can also support the connection plate by the receiving piece, there is an effect that workability is improved.

Further, according to the method for repairing the inner wall surface of the concrete-structured tank according to the present invention, the lining plate is expanded and the filler is filled from the lower side of the concrete inner wall surface in the tank, and then the connecting plate is attached. Since the procedure was to connect the lining plate to the upper side of the concrete inner wall surface through the expansion and fill the filling material, the filling work of the filling material can be divided into several times and the filling range is limited,
It is possible to surely fill the inside of the filled portion with the filling material, and since each rib piece of the lining plate is securely buried, there is an effect that the lining plate is firmly fixed after the filling material is cured. .

In this repairing method, after inserting the connection plate into the upper edge of the lining plate in advance, the lining plate is expanded and the filling material is filled from the lower side of the concrete inner wall surface in the tank, and thereafter, If the lining plate is connected to the upper part of the concrete inner wall surface and expanded, and the filling material is filled, the connection plate is already attached when the lining plate is expanded, so it is necessary to connect the next lining plate. The work is simplified and the construction is easy,
Similar to the method described above, the filling operation of the filling material can be divided into several times, so that the filling range is limited, and it is possible to surely fill the inside of the filling portion with the filling material. Since each rib piece of is surely buried,
There is an effect that the lining plate is firmly fixed after the filling material is cured.

[Brief description of drawings]

FIG. 1 is a schematic side sectional view showing an embodiment of a repair structure for a concrete inner wall surface of a tank according to the present invention.

FIG. 2 is a perspective view of a lining plate that constitutes the repair structure according to the embodiment.

FIG. 3 is a plan sectional view of the lining plate.

FIG. 4 is a perspective view of a lining plate having another shape which constitutes the repair structure according to the embodiment.

FIG. 5 is a plan sectional view of a lining plate having another shape.

FIG. 6 is a perspective view of a plane connection plate of the connection plate according to the embodiment.

FIG. 7 is a side sectional view showing a state where a corner connecting plate of the connecting plate according to the embodiment is attached.

FIG. 8 is a side sectional view illustrating a method of constructing a repair structure according to the embodiment.

FIG. 9 is a front view of the repair structure for the concrete inner wall surface according to the embodiment.

FIG. 10 is a side sectional view for explaining a method of constructing the repair structure according to the embodiment.

FIG. 11 is a side sectional view for explaining a method of constructing the repair structure according to the embodiment.

FIG. 12 is a side sectional view for explaining a method of constructing the repair structure according to the embodiment.

FIG. 13 is a side cross-sectional view showing a corner connection plate mounting state of a connection plate according to another embodiment.

[Explanation of symbols]

 1 ... Repairing structure of concrete inner wall surface 2 ... Lining plate 2a ... One surface 3 ... Rib plate 3a ... Bulging part 6 ... Connection plate 6A ... Flat connection plate 6B ... Corner connection plate 6a (6Aa, 6Ba) ... One Surface 7 ... Insertion groove 8 ... Rib piece 8a ... Bulging portion 9 ... Receiving piece 10 ... Supporting member 12 ... Anchor bolt 13 ... Supporting piece 14 ... Filler T ... Tank W ... Concrete inner wall surface

Claims (7)

[Claims] 1. A plastic lining plate integrally formed with a plurality of rib pieces each having a bulge at the tip in parallel with one surface facing an inner wall surface of a tank having a concrete structure, and at least facing each other. Insertion grooves are formed on both side edges of the lining plate, and an edge portion of the lining plate is inserted, and a connecting plate that connects the lining plates to each other, and anchor bolts that are multiply implanted at the inner wall surface at predetermined intervals, A support member, which is attached to the anchor bolt and configured to support the lining plate at a predetermined distance from the inner wall surface, and a support member, and a gap between the inner wall surface formed by the support member and the lining plate is filled. A structure for repairing the inner wall surface of a concrete-structured tank, which comprises: a filler. 2. The repair structure for an inner wall surface of a concrete structure tank according to claim 1, wherein the lining plate is formed of a colored or transparent resin. 3. The concrete according to claim 1, wherein a rib piece having a bulge portion at a tip thereof is integrally formed on one surface of the connection plate facing the inner wall surface. Repair structure of the inner wall of the structure tank. 4. The connection plate is composed of a flat plate-shaped connection plate and a corner connection plate having a central portion bent and formed at a predetermined angle. Three
Repair structure for the inner wall of the concrete structure tank described. 5. A receiving piece is integrally formed so as to be continuous with the edge portion at the edge portion on the one surface side facing the concrete inner wall surface of the insertion groove of the connection plate. A repair structure for an inner wall surface of a tank having a concrete structure according to claim 1, 2 or 3 or 4. 6. A large number of supporting members are planted at predetermined intervals on the inner wall surface of a concrete-structured tank, and a large number of rib pieces each having a bulge at the tip are formed integrally on one surface in parallel with each other. A plastic lining plate, the rib pieces are opposed to the inner wall surface, and the rib piece is extended to the lower side of the inner wall surface and temporarily fixed to the support member, and the support member makes a gap between the inner wall surface and the lining plate. After filling the filling material from the upper edge side of the lining plate and burying the rib pieces, the connecting plate is inserted into the upper edge of the lining plate, and the lining plate is further connected to the connecting plate to form the inner wall surface. After the rib pieces are opposed to each other and extended on the upper side and temporarily fixed to the support member, a filling material is filled in a gap between the inner wall surface and the lining plate by the support member to bury the rib pieces, and the connecting plate is sequentially connected. Insert and lie Repeating the filling of the filling material while connecting the lining plate, covering the entire inner wall surface with the lining plate, and curing the filling material to repair the inner wall surface of the concrete structure. How to repair the inner wall of the tank. 7. A large number of support members are planted at predetermined intervals on the inner wall surface of a concrete-structured tank, and a large number of rib pieces having bulges at the tips are formed integrally on one surface in parallel with each other. After inserting the connection plate into the upper edge of the plastic lining plate, the lining plate is temporarily fixed to the support member by extending the lining plate to the inner wall surface with the rib pieces opposed to each other, After filling the gap between the inner wall surface of the support member and the lining plate with a filling material from the upper edge side of the lining plate to bury the rib pieces, a lining plate having rib pieces is further connected to the connection plate. Then, the rib pieces are opposed to each other and expanded on the upper side of the inner wall surface and temporarily fixed to the support member, and then a filling material is filled in a gap between the inner wall surface and the lining plate by the support member to form the rib piece. Submerge and connect the connecting plates one after another. Repeatedly filling the filling material while inserting and connecting the lining plate to cover the entire inner wall surface of the tank with the lining plate, and to cure the filling material to repair the inner wall surface. Method for repairing inner wall of concrete structure tank.