JP2806267B2 - Rehabilitation lining method and rehabilitation lining structure of concrete frame wall - 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 lining method and a repair lining structure for concrete concrete walls such as sewage collection tanks and sludge treatment tanks and concrete frame walls such as pipes.

[0002]

2. Description of the Related Art A liquid tank such as a large-capacity sewage treatment tank, a pipe, and the like are generally constructed of reinforced concrete and buried under the ground. Such a liquid tank and the like, due to the effects of volatile components from sewage and the like stored therein, particularly sulfuric acid and other oxide components generated by bacteria, etc., cause internal corrosion within a shorter period than expected, Walls and ceilings have become ragged and structural strength has been impaired, and the problem of corrosion has recently been greatly highlighted.

[0003] The concrete liquid tank or the like which has been corroded as described above is strongly required to be repaired later for safety and desirably to be able to permanently prevent the subsequent corrosion. .

Conventionally, the following method has been adopted as a method of repairing a corroded concrete liquid tank or the like. That is, after removing the corroded portion of the concrete frame wall (used to include the ceiling surface), form a frame with wood or plywood panel on the surface side of the frame, inject concrete into the frame and cure. After curing, the formwork is removed to form a new concrete layer, and the surface of the new concrete layer is coated with a chemical-resistant anticorrosive paint such as a tar-based paint to finish or A method of adhering and fixing a chemically resistant plywood resin plate to the surface of a concrete layer and lining the surface of the concrete layer has been adopted.

[0005]

However, the above-mentioned conventional repair method involves a new concrete layer building process,
Since two steps including a finishing step of the concrete layer surface are required, the former step requires much labor and time, and is not preferable in terms of both the construction period and the construction cost.

Moreover, when the surface of the concrete layer is lined with a resin plate or the like, the strength of the skeleton is secured only by the strength of the concrete layer, so that it cannot sufficiently cope with external vibration such as an earthquake. This left a problem in terms of durability.

[0007] Further, in the case of applying a paint finish with an anticorrosive paint, there is a problem in the chemical resistance and durability of the paint layer itself, and corrosion is likely to occur again on the surface of the underlying concrete layer in a relatively short period of time. There was a problem that it could not be made permanent.

<Background of the Invention> On the other hand, in recent years, the present inventors have proposed a modified lining method (Japanese Patent Application No. 5-18521) capable of solving the above-mentioned problems. In this method, an anchor bolt is fixedly planted on a concrete frame wall to be repaired, and a rigid metal frame arranged at a distance from the frame wall is fixed using the anchor bolt, and then the metal frame is fixed. The hard synthetic resin lining panel arranged on the surface is fixed to the metal frame with bolts and nuts, and then bar-shaped restraining bars are arranged in a grid on the surface side of the lining panel, and this is fixed on the lining panel surface. Then, a backing material such as concrete is injected and filled into the space between the skeleton panel and the lining panel, and after the backing material has cured and hardened, the restraining bars and the like are removed.

According to this method, since it is not necessary to separately form a mold and inject the backing material, it is possible to shorten the construction period and to reduce the construction cost, and to reduce the time required for the newly formed concrete layer. Because the rigid metal frame is buried, the strength of the entire renovated building is increased, sufficient durability can be obtained, and since it is covered with a lining panel made of hard synthetic resin, Excellent corrosion protection can be obtained permanently.

As described above, this method can solve the conventional problems, but leaves room for improvement.
That is, in this modified lining method, since the rigid metal frame and the lining panel are also structural members that receive the injection pressure of the backing material, it is necessary to impart a predetermined pressure resistance or more, and to simplify the shape. Not be able to
The cost is increased, the weight is further increased, and the burden on the worker when assembling these members is increased, which causes a problem that the repair work cannot be easily performed. Furthermore, since the lining panel is a structural member, it is necessary to firmly fix the panel with bolts and nuts, and the fixing work is complicated, which also complicates the renovation work. ,
Since nuts or bolts are present on the surface, troublesome work of covering them with a cap or the like is also required, causing problems such as further complicating repair work, and it is desired to eliminate these problems. .

The present invention has been made in view of the above circumstances, and can prevent a prolonged construction period and an increase in construction cost due to assembling and removing a formwork. Renovation lining method and lining structure for concrete skeleton walls that can achieve higher strength and eliminate the possibility of corrosion, further reduce costs and facilitate repair work The purpose is to provide.

[0012]

Means for Solving the Problems In order to achieve the above object, a method for repairing and lining a concrete skeleton wall according to the first invention of the present application is to solidify a large number of anchor bolts in a predetermined arrangement on the concrete skeleton wall, Using the anchor bolts, a number of lining panel mounting metal frames are fixed on the skeleton wall, and then, a number of lining panels made of a hard synthetic resin having embedded fixing pieces protruding on the back side, By engaging with the metal frame, it is mounted side by side in a plane at an interval from the skeleton wall, and then the respective lining panels are held in a state where they are restrained on the skeleton wall side by temporary restraining means, and in the restrained state. A backing material such as concrete is filled in the space between the skeleton panel and the lining panel, and the buried fixing pieces are filled with the backing material. Unnecessarily injected filling and, after curing cured Urakomizai is for summarized in that the removal of the temporary inhibiting means.

[0013] In the first invention, the metal frame is constituted by a long member arranged vertically, and a large number of lining panel mounting openings are formed in the metal frame at predetermined intervals along the longitudinal direction. Part is formed, and a part of the embedded fixing piece of the lining panel is
It is preferable to adopt a step of attaching the lining panel by fitting into the opening for attaching the lining panel and engaging with the lower edge of the opening.

Further, in the first invention, as the temporary restraining means, a plurality of metal-made restraining panels with a frame, a plurality of metal bar-shaped restraining bars, and a plurality of metal bar-shaped restraining bars fixed to the wall surface of the frame are provided. A large number of connecting bolts are detachably connected to the anchor bolts for fixing the crosspieces, and the above-mentioned restraining panels with frames are arranged side by side on the surface of the lining panel, and the front side of the restraining panels with frames is prepared. The nuts are screwed into the lining panel, the frame-inhibited panel, and the connection bolts penetrating the restraint bar from the front side, and the frame-inhibited panel and the restraint bar are attached to the lining panel. It is preferable to adopt a step of holding the lining panel on the skeleton wall side in a restrained state by pressing.

In order to achieve the above object, the second invention of the present application is directed to a metal frame for mounting a large number of lining panels on a wall of the concrete frame by means of a number of anchor bolts fixedly arranged on the wall of the concrete frame. A number of lining panels made of a hard synthetic resin having embedded fixing pieces protruding on the back side are attached to the metal frame so as to be arranged in a plane at an interval from the body wall surface. A backing material such as concrete is filled and hardened between the body wall surface and the lining panel, and the embedded fixing piece is embedded and fixed inside the backing material.

In the second aspect of the present invention, it is preferable that the buried fixing piece is formed of a hook.

Further, in the second invention, it is preferable that the lining panel has a configuration in which the embedded fixing piece is made of a hard vinyl chloride resin integrally molded.

Further, in the second invention, the metal frame is provided with a mounting flange having a long hole for inserting a bolt, and a belt-shaped mounting washer having a long hole for inserting a bolt is fixed to the anchor bolt. In a state where the mounting flange and the mounting washer are overlapped so that the respective bolt insertion slots are orthogonal to each other, by fastening a nut to the bolt inserted into both bolt insertion slots,
It is preferable to adopt a configuration in which the metal frame is fixed so as to be adjustable in position.

As the backing material used in the present invention, in addition to general ordinary concrete, synthetic cements such as aqueous cement cements, polymer cements such as water-soluble polymer cements, mortars, and epoxy resins. Resin compositions and the like can be exemplified as usable ones.

[0020]

According to the first aspect of the present invention, in the lining method for repairing a concrete frame wall, a metal frame is fixed to the concrete frame wall, and the lining panel is engaged with the metal frame so that the lining is attached at a distance from the frame wall. Since the wall is formed and the lining wall is used as a backing material formwork such as concrete and the backing material is injected and filled, it is not necessary to form a separate formwork with wood or the like, and furthermore, the skeleton wall surface is Covered by lining wall. Further, the metal frame is buried in the backing material wall newly formed by the injection of the backing material, and the strength of the entire renovated building is increased.

In addition, since the backing material is injected and filled in a state where the lining panel is restrained on the side of the body wall by the temporary restraining means, the injection pressure of the backing material can be received by the temporary restraining means. It is not necessary to receive the backing material injection pressure by the metal frame and the lining panel, and it is not necessary to form them as structural members having a predetermined or higher pressure resistance.

Further, the lining panel can be easily attached simply by engaging with the metal frame, and a buried fixing piece protruding from the back side of the lining panel is provided.
Since it is embedded in the backing material wall and structurally fixed, the lining panel can be attached with high strength.

In the first invention, when the lining panel is attached by fitting the embedded fixing piece of the lining panel into the opening formed in the metal frame and engaging with the lower edge of the opening, The lining panel can be securely mounted.

Further, in the first invention, when a temporary restraint means including a restraint panel with a metal frame and a restraint bar is used, the restraining of the lining panel toward the frame wall surface can be surely performed. Things.

On the other hand, the modified lining structure of the concrete skeleton wall of the second invention of the present application specifies the structure realized by the implementation of the method of the first invention, and thus performs the same operation as above. Things.

In the second aspect of the present invention, when the embedded fixing piece is formed of a hook, the embedded fixing piece can be securely embedded and fixed in the backing material.

Further, in the second invention, when a lining panel made of hard vinyl chloride having an embedded fixing piece integrally formed is used, it is possible to obtain a reliable corrosion protection and further reduce the cost. Can be achieved.

In the second aspect of the present invention, the belt-like mounting washer fixed by the anchor bolt and the mounting flange of the metal frame are overlapped with each other so that the bolt-inserting slots are orthogonal to each other. When adopting a configuration in which the metal frame is fixed by fastening a nut to a bolt inserted into the hole, by loosening the fastening of the bolt and nut, the mounting flange can be freely moved along the body wall direction. You can move,
By firmly fastening bolts and nuts at any moving position, the mounting flange can be securely fixed at that position,
The mounting position of the metal frame can be finely adjusted.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will now be given, with reference to the drawings, of a case in which a sewage treatment tank or the like is repaired by using a repair lining method according to an embodiment of the present invention.

First, as shown in FIGS. 1 to 4, the wall (2) of the corroded concrete skeleton (1) is often in a rough state in the liquid tank to be repaired.
After the corrosion defect is removed using a suitable scraping tool or the like, the surface is subjected to substrate adjustment.

Next, as shown in FIG. 1 to FIG. 4, a pair of two pieces are arranged on the wall surface (2) at a predetermined arrangement pitch, that is, corresponding to a mounting position of a metal frame (30) for mounting a lining panel described later. And many anchor bolts (1
0) is planted. For example, a hole (3) is formed in the concrete frame (1) from the wall surface side, and an anchor bolt (1) is formed in the hole.
0), insert the first nut (1) into the male thread.
The anchor bolt (10) is firmly erected and fixed by forcibly expanding the skirt of the anchor part by screwing in (3).

Next, two anchor bolts (1
The band-shaped mounting washers (20) are attached so as to bridge over 0). The mounting washer (20) is formed with an elongated hole (21) extending in the length direction (left-right direction), and two pairs of bolt inserting elongated holes (21) are provided at both ends. The male thread of the anchor bolt (10) is inserted, and the second nut (14) is inserted into the male thread of the anchor washer (2).
0), the mounting washer (2)
0) is provided. When vertical position adjustment is required for the wall surface (2) of the mounting washer (20), a position adjusting nut is interposed between the mounting washer (20) and the first nut (13). The position of the mounting washer (20) may be adjusted by adjusting the screwing position of the position adjusting nut.

Subsequently, a number of lining panel mounting metal frames (30) are mounted using the mounting washers (20). As shown in FIG. 12, the metal frame (30) is made of a U-shaped elongate member having a length of 1800 mm, and has a front wall (31) and both side bent pieces (32). ing. The metal frame (30) has a lining panel mounting opening extending from a substantially middle portion of the one-side bent piece (32) to a substantially middle portion of the other-side bent piece (32) through the front wall (31). A large number of (33) are formed at predetermined intervals (100 mm intervals) along the metal frame length direction, and the lower edge of the lining panel mounting opening (33) of the front wall (31) extends upward. Thus, a retaining piece (34) is formed.

A plurality of mounting flanges (35) connected to the both-side bent pieces (32) are provided at predetermined intervals (intervals of 566 to 567 mm) along the length of the metal frame. Each of the mounting flanges (35) has an elongated bolt insertion hole (36) extending along the length of the metal frame. In this embodiment, the mounting flange (35) is a metal frame (30).
Are provided on one side, that is, eight in total.

Then, as shown in FIG. 1, the mounting flange (35) is superimposed on the front surface of the mounting washer (20) so that the metal frame (30) is arranged in the vertical direction. (22) to the mounting washer (20)
Bolt holes (21) and metal frames (3
The metal frame (30) is fixed by inserting the nuts (23) into the bolts (22) by inserting the nuts (23) into the bolt insertion slots (36) from the back side respectively. In this fixed state, by loosening the fastening of the bolt (22) and the nut (23), the mounting flange (35) is allowed to move up, down, left, and right (in the direction of the body wall surface), and the bolt (22) is moved at an arbitrary moving position. By firmly fastening the nut 22) and the nut 23, the mounting flange 35 is fixed at that position. Therefore, the fixing position of the mounting flange (35), that is, the fixing position of the metal frame (30) can be finely adjusted.

Next, as shown in FIGS. 3 and 9, between the metal frame (30) on the wall surface (2) of the concrete frame (1), a lining panel (4) to be described later is formed.
A large number of anchor bolts (5) for fixing the restraining bars are fixedly planted so as to correspond to almost the respective mounting positions of (0). That is, a hole (6) is formed from the wall surface side of the concrete body (1), and the hole (6) is filled with a hardening material such as a chemical anchor (7), and then the anchor bolt (5) is formed.
Is inserted, and the chemical anchor (7) is hardened, so that the restraining beam fixing anchor bolt (5) is erected and fixed.

On the other hand, a large number of lining panels (40) attached using the metal frame (30)
Is made of hard vinyl chloride resin and has a width of 744 mm and a height of 29 as shown in FIGS.
A rectangular panel main body (41) of 4 mm and a rear surface of the panel main body (41) are spaced apart from each other by a predetermined distance in the vertical direction.
The metal frame (30) is provided with a buried fixing piece (42) that can be fitted into and detached from the lining panel mounting opening (33) of the metal frame (30).

The embedded fixing piece (42) is attached to the panel body (4).
1) A hook-shaped member having a horizontal portion (42a) having a length of 20 mm protruding from the rear surface side in the rear direction and a vertical portion (42b) having a height of 20 mm and extending upward from the front end of the horizontal portion. I have.

Further, the embedded fixing piece (42) is formed along the panel width direction, and both end portions are formed to be slightly inside the both side edges of the panel body (41). A slit (4) for inserting the retaining piece (34) into which the retaining piece (34) of the metal frame (30) can be inserted between the both sides of the fixing piece (42) and the panel body (41).
3) is formed.

As shown in FIGS. 14 and 15, a packing insertion groove (44) is formed on the upper edge and the lower edge of the panel body (41), and the panel body (4) is formed.
A step (45) for packing insertion is formed on both side edges of the back side of 1).

In the present invention, the material of the lining panel (40) is not particularly limited, and any material having excellent chemical resistance can be used. In this case, it is preferable to use the above-mentioned hard vinyl chloride resin.

The lining panel (40) having the above structure
Are mounted as follows. That is, as shown in FIGS. 2 and 5, both ends of the embedded fixing piece (42) of the lining panel (40) are inserted into the corresponding lining panel mounting opening (33) of the metal frame (30) on the front side. , And the lining panel (40) is slid downward in the fitted state. Thereby, as shown in FIG. 6 and FIG.
The retaining piece (34) on the metal frame (30) side is inserted into the retaining piece inserting slit (43) on the 0) side, and
The lower surfaces of both sides of the embedded fixing piece (42) of the lining panel (40) engage with the lower edge of the lining panel mounting opening (33) in the both-side bent piece (32) of the metal frame (30), and the lining is formed. Panel (40) is the skeleton wall (2)
Are arranged at a predetermined distance from each other.

In the same manner, a large number of lining panels (40) are sequentially attached and arranged in a plane in a vertical and horizontal arrangement. At this time, the lining panels (4
0), a rubber packing (47) is interposed so as to be accommodated in the packing insertion groove (44) (see FIG. 3), and the packing is inserted between the left and right lining panels (40). A rubber packing (46) is interposed so as to be arranged on the wearing step (45) (see FIG. 7).

Next, as shown in FIGS. 3, 8 and 9,
A bolt insertion hole (40a) is formed in the lining panel (40) at a position corresponding to the anchor bolt (5) for fixing the restraining bar.

Subsequently, the sea bolt (5) is inserted into the hole (40a).
a) and other connecting bolts are inserted and arranged, and fastened to the anchor bolts (5). Thereby, a part of the sieve bolt (5a) is arranged so as to protrude toward the surface side of the lining panel (40).

Thereafter, a large number of metal frame-inhibited panels (50) are arranged side by side on the entire surface side of the lining panel (40). That is, the suppression panel with frame (50)
As shown in FIG. 16, a rectangular frame (51) having a length of 300 mm and a width of 750 mm, a panel body (52) attached to one surface of the rectangular frame (51), and the inside of the rectangular frame (51) And a reinforcing plate (53) stretched vertically and horizontally. The rectangular frame (51) has a large number of openings (5
4) is formed, and a bolt insertion hole (55) is formed in the panel body (52) so as to correspond to the position of the restraining bar fixing anchor bolt (5).

As shown in FIG. 8 and FIG. 9, the above-mentioned sheet bolts (5a) are inserted through the plurality of frame-equipped restraining panels (50) into the respective bolt insertion holes (55). In this manner, the lining panel (40) is stacked in a plane in a vertical and horizontal arrangement, and the suppression panel with frame (50) is arranged on the entire surface of the lining panel (40).

When stacking the framed suppression panels (50), the opening (54) of the rectangular frame (51) (FIG. 16)
(See FIG. 2) to connect adjacent suppression panels with frames (50).

Next, on the front side of the restraining panel with frame (50), a plurality of restraining bars (60) made of lip channel steel are fixed. That is, a pair of restraining bars (60) are arranged along the upper surface of the restraining panel (50) such that the sea bolts (5a) are positioned therebetween.

Subsequently, the metal holding plate (61) is placed on the restraining bar (60) so that the sea bolt (5a) is inserted into the center hole thereof, and then the metal holding plate (61) is inserted.
By screwing a nut (9) into a),
0) and the suppression panel (50) with the lining panel (4
0).

Here, in the present embodiment, the temporary restraint is provided by the restraining panel with frame (50), the restraining bar (60), the holding plate (61), the anchor bolt (5), the sea bolt (5a) and the nut (9). Means are configured.

In this embodiment, the arrangement pitch of each pair of the restraining bars (60) provided in pairs is 750.
mm, and the mounting pitch by the sea bolts (5a) in each set of restraining bars (60) is 300 mm.
It is preferable to set That is, by setting such a pitch, each of the suppression panels with frames (50) can be fixed almost at one location for each panel, and the suppression panel with frames (50) can be securely fixed.

Subsequently, as shown in FIG. 9, in a state where the lining panel (40) is pressed by the temporary restraining means as described above, the space between the concrete frame (1) and the lining panel (40) is The backing material (70) such as concrete is injected and filled. At this time, the lining panel (40) is provided inside the filled backing material (70).
The embedded fixing piece (42) is embedded.

Subsequently, after the injection backing material (70) cures and hardens, as shown in FIG. 11, the nut (9) of the sea bolt (5a) is loosened and removed, and the holding plate (61) and the holding bar (60) are removed. ) And the restraining panel with frame (50) are removed, and the seabolts (5a) are further removed and removed from the anchor bolts (5).

Finally, as shown in FIG. 11, the cap (80) made of polyvinyl chloride is fitted into the bolt insertion hole (40a) of the lining panel (40), and the anchor bolt (5) for fixing the restraining bar is provided. To be crowned.

Thus, the repair work of the concrete skeleton wall surface (2) in this embodiment is completed, and the repair lining structure in this embodiment is formed.

According to this modified lining method, the lining panel (4) is spaced apart from the skeleton wall (2).
0) is attached to form a lining wall, and the lining wall is also used as a formwork of the backing material (70), and
Since the filling and filling of step (0) is performed, it is possible to reduce the amount of material, shorten the construction period, and reduce labor compared to the case where the backing material is poured by separately forming a formwork with wood or the like. Furthermore, since the skeleton wall (2) is covered with the lining wall, it is possible to obtain permanent excellent corrosion protection, and the lining wall can have excellent surface smoothness. Of the liquid stored in the tank or the flowing liquid can be prevented, and the flow-down characteristics can be improved.

Further, the metal frame (30) is buried in the backing material wall newly formed by the injection of the backing material (70), so that the strength of the entire renovated building is increased, and Sufficient durability can be obtained as a tank or the like.

Moreover, since the injection pressure of the backing material (70) is received by the restraining panel with frame (50) and the restraining bar (60), in other words, the metal frame (3)
0) and the lining panel (40) do not need to receive the injection pressure of the backing material (70), so that the metal frame (30) and the lining panel (40)
It is not necessary to form a structural member having a predetermined pressure resistance. For this reason, the restriction on the pressure resistance is relaxed, and the metal frame (30) and the lining panel (40) can be formed into a simple shape. The burden on the user can be reduced, and better workability can be obtained.

The lining panel (40) can be easily mounted simply by fitting it into the opening (33) of the metal frame (30) and engaging with the lower edge of the opening. , Good workability can be obtained. In addition, since the embedded fixing piece (42) protruding from the back side of the lining panel is embedded in the backing material wall and structurally fixed, it is possible to obtain sufficient mounting strength on the lining panel (40). And no practical problems occur.

As a structure for mounting the metal frame (30) to the frame wall (2), the metal frame (30) is mounted on a mounting washer (20) fixed to the frame wall (2) with anchor bolts (10). The flanges (35) are overlapped, and the bolts (22) are inserted through the bolt holes (21) arranged in the horizontal direction and the bolt holes (35) arranged in the vertical direction. ) And nuts (2
3) is adopted, by loosening the bolts (22) and the nuts (23), the mounting flange (35) can be freely moved in the vertical and horizontal directions, and Bolt (2
By tightening 2) and the nut (23) firmly,
At that position, the mounting flange (35) can be fixed. Therefore, the fixing position of the metal frame (30) can be finely adjusted, and the lining panel (40) can be accurately attached.

Further, after the temporary restraining means such as the restraining panel with frame (50) and the restraining bar (60) are removed, a PVC-made restraining bar fixing bolt insertion hole (40a) formed in the lining panel (40) is made of PVC. Since the cap (80) is used to perform hole filling, the hole filling finishing operation can be easily performed. In addition, since the same material as that of the lining panel (40) made of PVC is used as the cap (80), the uniformity of the entire lining wall surface can be achieved, and the uniform corrosion prevention without unevenness over the entire wall surface. Can be obtained.

FIGS. 17 and 18 are views showing an example in which the modified lining method of the present invention is applied to a wall (102) of a concrete body (101) such as a pipe.

As shown in both figures, in this method, a metal frame (130) and a lining panel (14) are used.
0) is a curved one divided into a plurality of segments in the circumferential direction corresponding to the inner peripheral surface of the concrete body wall surface (102) such as a sewer. Panel (150) made of a curved plywood or other concrete panel divided into a plurality of segment units in the direction, and a plurality of ring-shaped restraints formed by bending angle steel into a ring shape along the inner peripheral surface of the sewer. A bar (160) and a number of turnbuckle-type jackies (161) arranged between the restraining panel (150) and the ring-shaped restraining bar (160), as described below, are prepared.

First, in the same manner as described above, a large number of anchor bolts (1) are arranged on the frame wall (102) in a predetermined arrangement.
10) are fixedly planted, and a large number of metal frames (130) are attached in a predetermined arrangement using the anchor bolts (110).

Subsequently, a number of lining panels (14
0) is engaged with the metal frame (130) and mounted and arranged on the inner peripheral surface at a distance from the body wall surface (102), and then a large number of restraining panels (150) are mounted on the surface of the lining panel (140). ) Are arranged on the inner peripheral surface.

Subsequently, inside the suppression panel (150),
A ring-shaped restraining bar (160) is arranged. The ring-shaped restraining bars (160) are arranged at predetermined intervals, for example, at intervals of 750 mm along the direction of the sewer flow path.

Subsequently, a turnbuckle-type jackie (161) is arranged between the ring-shaped restraining bar (160) and the restraining panel (150), and the jacking (160) is extended to operate the restraining panel. (150) shall be pressed against the lining panel (140).

Next, in this pressed state, for example, a backing material driving hole is formed in the lining panel (140) and the suppression panel (150) located at the lower part of the sewer,
An air vent hole is formed in the lining panel (140) and the restraint panel (150) located at the upper part of the sewer, and a backing material (170) such as concrete is injected from the backing material driving hole to form a wall (102) for the body. Lining panel (150)
Is filled in the space between.

The backing material driving hole and the air vent hole are previously formed in the lining panel (140) and the restraining panel (1).
Of course, it may be formed in 50).

After curing of the injection backing material (170), Jackie (161), ring-shaped restraining bar (161)
By removing the restraining panel (150) and filling the backing material driving hole and the air vent hole with a plug or the like,
Renovation work is completed.

Since the other items are the same as those of the above-described embodiment, the same or corresponding portions are denoted by the same or corresponding reference numerals, and duplicate description will be omitted.

As described above, the lining method of the present invention can be applied to repair of pipes and the like, and even in such a case, the same effect as that of the above embodiment can be obtained.

It should be noted that the present invention is not limited to the specific configuration described in each of the above embodiments, and the present invention allows any design change without departing from the configuration described in the claims. Things.

For example, the lining panel arranged on the inner peripheral surface of the sewer is held in a suppressed state by using the panel inhibiting method of the method of the above-described embodiment, and the lining panel arranged on the inner peripheral surface of the sewer is It is also possible to use a plurality of expanding rods arranged in the radial direction to maintain the restrained state.

[0076]

As described above, according to the concrete lining wall repairing method of the first invention of the present application, the metal frame is fixed to the concrete frame wall, and the lining panel is engaged with the metal frame to fix the metal frame wall. The lining wall is formed by attaching the lining wall at a distance from the lining material, and the lining wall is also used as a lining material for the backing material such as concrete. Compared to the case where the backing material injection is performed
It can save resources, shorten the construction period, and reduce labor. Furthermore, since the skeleton wall is covered with the lining wall, it is possible to obtain permanent excellent corrosion protection, and the lining wall can have excellent surface smoothness. When applied to a culvert or the like, stagnation of a fluid can be prevented, and flow characteristics can be improved. Also, in the backing material wall newly formed by injection of the backing material,
Since the metal frame is buried, the strength of the entire renovated building is increased, and sufficient durability can be obtained.

Further, since the injection pressure of the backing material is received by the temporary restraining means, in other words, it is not necessary to receive the injection pressure of the backing material by the metal frame and the lining panel. It is not necessary to form as a structural member having. As described above, the restriction on the pressure resistance is relaxed, and the metal frame and the lining panel can be formed in a simple shape. As a result, the weight can be reduced while the cost is reduced, and the burden on the worker during construction can be reduced. , Better workability can be obtained.

Further, the lining panel can be easily attached simply by engaging with the metal frame. In this respect, good workability can be obtained, and in addition to this, the embedded fixing projecting from the back side of the lining panel can be obtained. Since the pieces are embedded in the backing material wall and fixed structurally, the lining panel can be attached with sufficient strength for practical use.

In the first invention, when the lining panel is attached by fitting the embedded fixing piece of the lining panel into the opening formed in the metal frame and engaging with the lower edge of the opening, There is an advantage that the lining panel can be securely mounted.

Further, in the first aspect of the present invention, in the case where a temporary restraining means comprising a restraining panel with a metal frame and a restraining bar made of metal is used, the restraining of the lining panel toward the wall surface of the frame is ensured. There is an advantage that it can be performed.

According to the modified lining structure of the concrete frame wall of the second invention of the present application, since the structure realized by the implementation of the method of the first invention is specified, it is substantially the same as the above. The effect can be obtained.

In the second aspect of the present invention, when the embedded fixing piece is formed of a hook, there is an advantage that the lining panel can be securely fixed.

In the second aspect of the present invention, when the lining panel is made of hard vinyl chloride in which the embedded fixing pieces are integrally formed, reliable corrosion protection can be obtained and further cost reduction can be achieved. There is an advantage that can be achieved.

In the second aspect of the present invention, the belt-like mounting washer fixed by the anchor bolt and the mounting flange of the metal frame are overlapped with each other so that the bolt-inserting long holes are orthogonal to each other, and the two bolt-inserting lengths are set. When adopting a configuration in which the metal frame is fixed by fastening a nut to a bolt inserted into the hole, the mounting position of the metal frame can be finely adjusted, and the lining panel mounting work and, consequently, the repair work can be performed. There is an advantage that it can be performed smoothly.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a construction state of a metal frame in a repair lining method for a concrete frame wall according to one embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a lining panel is attached in the embodiment method.

FIG. 3 is a partially cutaway front view showing a state where a lining panel is attached in the embodiment method.

FIG. 4 is a side sectional view showing a lining panel mounting state in the embodiment method.

FIG. 5 is an enlarged side sectional view showing a state where a lining panel is attached in the example method.

FIG. 6 is an enlarged perspective view showing a state where the lining panel is attached in the embodiment method.

FIG. 7 is a horizontal cross-sectional view showing a lining panel mounting state in the example method.

FIG. 8 is an exploded perspective view showing a state in which the temporary restraining means is attached in the embodiment method.

FIG. 9 is a side cross-sectional view showing a state in which temporary restraining means is attached in the embodiment method.

FIG. 10 is a front view showing a state in which temporary restraining means is attached in the embodiment method.

FIG. 11 is a side sectional view showing a modified lining structure completed by the example method.

FIGS. 12A and 12B are views showing a metal frame used in the example method, in which FIG. 12A is a front view, FIG. 12B is a side view, and FIG. 12C is a bottom view.

13A and 13B are diagrams showing a lining panel used in the example method, wherein FIG. 13A is a front view, FIG. 13B is a side view, and FIG. 13C is a plan view.

14 is an enlarged view of a portion surrounded by a dashed line P in FIG.

FIG. 15 is an enlarged view of a portion surrounded by a dashed-dotted line Q in FIG. 13;

FIG. 16 is a partially cutaway perspective view showing the restraint panel used in the example method.

FIG. 17 is a perspective view showing a metal frame and a lining panel used in a modified lining method according to another embodiment of the present invention.

FIG. 18 is a cross-sectional view showing a modified lining structure completed by the method of the other embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 101 ... Concrete frame 2,102 ... Frame wall 5 ... Anchor bolt for restraining beam fixing 5a ... Sea bolt (connection bolt) 9 ... Nut 10,110 ... Anchor bolt 20 ... Mounting washer 21 ... Long bolt insertion hole 22 ... Bolt 23 ... Nuts 30, 130 ... Metal frame 33 ... Opening for mounting lining panel 35 ... Mounting flange 36 ... Vertical bolt insertion hole 40, 140 ... Lining panel 42 ... Embedded fixing piece 50 ... Suppression panel with frame 60, 160 ... Suppression bar 70 … Backing material

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B28B 19/00 B65D 90/04 E02B 5/02 E03F 3/04 E03F 5/04

Claims (7)

(57) [Claims] 1. An anchor bolt is fixedly planted in a predetermined arrangement on a wall of a concrete frame, and a plurality of metal frames for attaching lining panels are fixed on the wall of the frame using the anchor bolt. A number of lining panels made of a hard synthetic resin with embedded fixing pieces protruding on the back side are engaged with the metal frame, and are attached in a planar manner at an interval from the body wall surface, Each lining panel is held in a state where the lining panel is restrained on the side of the skeleton wall by the temporary restraint means. In the restrained state, a backing material such as concrete is placed in a space between the skeleton panel and the lining panel, and After the filling material is injected and filled so as to embed the embedded fixing pieces, and the backing material is cured and cured, the temporary restraining means is removed. Renovation lining method of the REIT precursor wall. 2. The metal frame is constituted by a long member arranged in a vertical direction, and a large number of lining panel mounting openings are formed in the metal frame at predetermined intervals along the longitudinal direction. The lining panel is mounted by fitting a part of the embedded fixing piece of the lining panel into the lining panel mounting opening and engaging the lower edge of the opening. Renovation lining method for concrete body walls. 3. The temporary restraining means includes a plurality of metal-made restraining panels with a frame, a plurality of metal bar-shaped restraining bars, and a plurality of restraining bar fixing anchors fixedly planted on the frame wall. A large number of connecting bolts detachably connected to the bolts are prepared, and the above-described restraining panels with frames are arranged side by side on the surface of the lining panel, and the restraining bars are arranged on the surface side of the restraining panel with frames. Then, by screwing a nut from the front side to the connection bolt that penetrated the lining panel, the restraining panel with frame and the restraining bar, and pressing the restraining panel with frame and the restraining bar against the lining panel, The method according to claim 1 or 2, wherein the lining panel is held in a restrained state on the side of the skeleton wall. 4. A plurality of metal frames for lining panel attachment are fixed on the wall surface of the concrete frame by a plurality of anchor bolts fixedly arranged in a predetermined arrangement on the wall surface of the concrete frame. A large number of lining panels made of hard synthetic resin are attached side by side in a plane at an interval from the body wall by engaging with the metal frame, and concrete is provided between the body wall and the lining panel. A lining structure for repairing a concrete frame wall in which a backing material such as is filled and hardened, and the buried fixing pieces are buried and fixed inside the backing material. 5. The modified lining structure of a concrete frame wall according to claim 4, wherein the buried fixing pieces are formed of hooks. 6. The modified lining structure of a concrete frame wall according to claim 4, wherein the lining panel is made of a hard vinyl chloride resin into which the embedded fixing piece is integrally formed. 7. The metal frame is provided with a mounting flange having a long hole for inserting a bolt, and a belt-shaped mounting washer having a long hole for inserting a bolt is fixed to the anchor bolt, and the mounting flange and the mounting washer are provided. With the nuts screwed into the bolts inserted into the bolt insertion slots in a state where the bolt insertion slots are overlapped so that the bolt insertion slots are orthogonal to each other, the metal frame can be adjusted in position. The repair lining structure for a concrete skeleton wall according to any one of claims 4 to 6, which is fixed.