JPH08246546A - Work execution method and structure of concrete body wall fitted with lining panel - Google Patents

Abstract

PURPOSE: To efficiently execute, at low cost, the work of a concrete body wall fitted with a lining panel, which can ensure enough corrosionproof property for a long period in wall face area, not to mention panel joint and prevent crack or breakage of a lining panel. CONSTITUTION: Out of a pair of sheathings 3 and 10 counterposed through a metallic spacer 30 in prop form, at least one sheathing 3 is constituted of a plurality of lining panels 10 which are joined together, with their edges set in both grooves 21 of a panel edge mating frame 20 made of synthetic resin H-shaped in cross section. In condition that a pair of sheathings 3 and 10 are retained by a temporary control means, it is charged with lining material 50, and after curing and hardening of the lining material 50, the temporary control means is removed in such mode as to leave the lining panel 10, the shank of a headed bolt is set through each lining panel 10 to be coupled with the spacer 30, and each lining panel 10 is pressed to the side of the lining material 50 by a bevel-shaped head and is retained there.

Description

Detailed Description of the Invention

[0001]

This invention relates to a sewage storage tank,
The present invention relates to a construction method and a structure of a concrete skeleton wall with a lining panel, which is applied when forming a concrete skeleton wall in a liquid tank such as a sludge treatment tank and an acidic chemicals tank.

[0002]

2. Description of the Related Art Liquid tanks such as sewage storage tanks are generally constructed and installed in the ground as being made of concrete. Such a tank or the like is corroded in a short period of time due to the influence of volatile components from sewage and the like stored therein, particularly sulfuric acid generated by bacteria, and the wall surface is deteriorated and the structural strength is impaired, Recently, the problem of this corrosion has been greatly highlighted.

Conventionally, as a general anticorrosion waterproof concrete skeleton wall, after the concrete wall is formed by a well-known method, a glass fiber reinforced plastic (FRP) or the like is lined on the wall surface, or a coating excellent in anticorrosion property is used. It is formed by coating.

[0004]

However, in order to construct the above-mentioned conventional concrete skeleton wall, there are roughly two steps, that is, a step of forming a concrete wall and a step of applying anticorrosion treatment to the wall surface. Therefore, there is a problem that it takes a lot of time and money. In addition, when performing anticorrosion treatment with FRP, hydrogen sulfide gas flows in from the fine holes of FRP and corrodes concrete, so sufficient durability cannot be obtained, and a coating with excellent anticorrosion properties is applied. In this case, the adhesion between the anticorrosion paint and the concrete cannot be sufficiently secured, and the anticorrosion property cannot be maintained for a long period of time such as the anticorrosion paint layer peeling off in a short period of time.

On the other hand, in Japanese Unexamined Patent Publication (Kokai) No. 5-132963, a large number of synthetic resin lining panels are fixed along the concrete wall surface by embedding and fixing anchor projections protruding from the back surface thereof in a concrete layer. Arranged structures are disclosed. In this structure, since the concrete wall surface is covered with a large number of synthetic resin lining panels, it can be said that the structure has sufficient corrosion resistance. However, in this structure, because the anchor projections of the lining panel are fixed in the state of being embedded in concrete,
The lining panel is easily affected by the stress on the concrete wall side. For example, if the concrete is cracked and distorted, the lining panel may be stressed and damaged. Further, since the adjacent lining panels are fixed to each other by welding, there is a problem that the welding work requires a great deal of labor, which requires a lot of labor and cost. In order to realize this structure, a temporary outer frame such as a concrete panel is required on the surface of the lining panel at the time of pouring concrete, and it is necessary to remove the outer frame after hardening the concrete. However, there is a problem that it takes a lot of time and money.

Further, Japanese Patent Laid-Open No. 6-193919 discloses a technique of placing concrete using a synthetic resin plate as a dam and leaving the synthetic resin plate even after the concrete is hardened to be used as a lining panel. . However, in this construction method, it is not possible to secure sufficient anticorrosion property in the joint part (panel joining part) between adjacent lining panels, and a soft vinyl chloride sheet or the like is provided, but the anticorrosion property is still insufficient. I have a problem.

The present invention solves the above-mentioned problems of the prior art, has a sufficient anticorrosion property not only on the panel joints but also on the entire wall surface, and can effectively prevent cracks and breakage of the lining panel. An object of the present invention is to provide a construction method and structure capable of efficiently forming an attached concrete skeleton wall at low cost.

[0008]

In order to achieve the above object, a method of constructing a concrete skeleton wall with a lining panel according to the first invention of the present application is such that a plurality of rod-shaped rigid members are opposed to each other via a strut-like member. Of the weir boards, at least one weir board is constituted by a plurality of synthetic resin lining panels that are fitted and joined together in both grooves of a synthetic resin panel edging frame whose edges are H-shaped in cross section,
In a state where the space between the pair of dams is held by the temporary restraining means, a backfill material such as concrete is filled between the dams, and the backfill material is cured and hardened, and is then constituted by the lining panel. In a mode in which the weir board is left, the temporary restraining means is removed, and at least the shaft portions of the plurality of mushroom-shaped connecting members made of synthetic resin are connected to the rigid member by penetrating the shaft portions of the mushroom-shaped connecting members into the lining panels. Therefore, the gist is to hold each lining panel by pressing it toward the backing material.

In the first invention, a step of waterproofing a gap between the lining panel and the panel framing frame with a caulking material, and a step of waterproofing a gap between the lining panel and the connecting member with a caulking material. Good to do.

In order to achieve the above object, the structure of the concrete skeleton wall with a lining panel of the second invention of the present application is
At least one surface of the backing layer such as concrete in which a plurality of rod-shaped rigid members penetrating from one surface to the other surface is embedded,
A plurality of synthetic resin lining panels are arranged in a state where end edges of adjacent panels are fitted and joined in both grooves of a synthetic resin panel edging frame having an H-shaped cross section,
At least the umbrella portion of the plurality of mushroom-shaped connecting members made of synthetic resin, the shaft portion is penetrated into each lining panel and connected to the rigid member, and the umbrella portion presses and holds each lining panel toward the backing layer side. The following is the summary.

[0011]

In the present invention, a plurality of synthetic resin lining panels joined together through a panel framing frame having an H-shaped cross section is used as a dam to form a backing layer such as a concrete layer, and a mushroom-shaped connecting member. Since it penetrates the lining panel and connects it to the rigid member in the backing layer and presses and holds the lining panel, the wall surface is covered with the lining panel, forming a concrete skeleton wall with excellent corrosion resistance permanently. it can. Moreover, since the edges of the adjacent lining panels are fitted into both grooves of the H-shaped panel edging frame to join the panels together, the panel joining part (joint) can be reliably sealed, Sufficient anticorrosion property can be secured even in the part. Further, since the lining panel is used as a dam when placing concrete and used as a lining material after hardening of concrete, it is not necessary to remove the dam. Further, since the lining panel is held by the rigid member inside the backing material via the connecting member, it is not directly affected by the stress on the backing material side.

In the present invention, when the gap between the lining panel and the panel framing frame and the gap between the lining panel and the connecting member are waterproofed with a caulking material, these gaps can be more reliably sealed. it can.

As the backing material in the present invention, in addition to general ordinary concrete, polymer cement type such as aqueous dispersion cement type and water soluble polymer cement type, mortar, and synthetic resin composition such as epoxy resin are used. The thing etc. can be illustrated as what can be used.

[0014]

[Embodiment] Hereinafter, FIG. 10 will be described based on an embodiment method of the present invention.
A case will be described in which a liquid tank (1) having a partition wall (2) formed therein is formed as shown in FIG.

First, in carrying out the construction method of the present embodiment, the lining panel (1
0) and panel framing frame (20) are prepared respectively.

The lining panel (10) has a surface layer (12 mm) made of a hard vinyl chloride plate with urethane adhesive on both sides of an intermediate layer (11) made of expanded vinyl chloride plate and having a thickness of 8 mm. ) Is formed, for example, a laminated plate having a thickness of 12 mm of 900 mm × 1800 mm.

In the present invention, as the lining panel, it is possible to preferably use a lining panel made of two or more laminated plates containing a hard synthetic resin layer, or a single layer made of a hard synthetic resin. When using a single-layer board, if the thickness is 1.5 mm or more, good corrosion resistance can be obtained at the time of forming a liquid tank. In order to obtain sufficient rigidity, it is preferable to make the thickness thick. However, if it is too thick, it will cause economic problems due to increased material costs,
The higher weight also increases the burden on workers during construction.

Therefore, the lining panel (1
By using an inexpensive and lightweight synthetic resin foam or a laminated plate including a honeycomb core as in (0), it is possible to reduce weight and cost while ensuring sufficient rigidity. Further, as in the lining panel (10) of this embodiment, the surface layers (12) (12) of the same quality and the same thickness are formed on both front and back surfaces.
By using the product having the above-mentioned structure, it is possible to achieve a balance between the front and back, prevent the panel from warping, and manufacture a high-quality panel product.

On the other hand, the panel framing frame (20) is
It is made of an extrusion-molded product having a H-shaped cross section with a thickness of 3 mm, and for example, the width of the grooves (21) (21) on both sides is 1
4 mm, the depth of each groove (21) (21) is 20 mm
Is set so that the edges of the lining panel (10) can be fitted in the grooves (21) (21).

In the present embodiment, in addition to the lining panel (10) and panel framing frame (20) having the above-mentioned construction, well-known members are used to form a concrete liquid tank (1) as described below. To do.

First, as shown in FIGS. 1 to 5, the soil around the place where the liquid tank is formed is dug up to form a mold. At this time,
At the portion corresponding to the outer peripheral surface of the liquid tank (1), a temporary dam (3) is formed using a wooden board or a concrete panel, and the inner peripheral surface of the liquid tank (1) and a partition wall ( In the portion corresponding to both sides of 2), a dam is formed using the lining panel (10) or the like.

That is, the lining panel (10) is fixed to the floor surface with a predetermined space inward from the temporary weir plate (3).

Subsequently, the existing lining panel (1
The panel framing frame (20) is arranged along the edge of (0) so that the groove (21) on one side thereof fits into the panel edge. Further, the end edge of the new lining panel (10) is fitted into the groove (21) on the other side of the panel rimming frame (20), and the lining panel (1)
Further, a panel rimming frame (20) is installed on the edge of (0), and thus a plurality of lining panels (10) are arranged in a plane at a predetermined distance from the temporary weir (3).
Note that, in FIG. 4, the panel framing frame (20) is shown by hatching for easy understanding of the invention.

On the other hand, a large number of spacers (30) having metal ends (32) screwed to both ends of the metal separator (31) are provided between the temporary weir plate (3) and the lining panel (10). Arrange in a strut shape. At this time, the screw holes formed in the end pieces (32) of the spacer (30) face the plurality of through holes (3a) (13) formed in the weir plate (3) and the lining panel (10), respectively. To place.

Further, temporary restraining means is provided to maintain this state. That is, the shaft foot (35) is passed through each of the through holes (3a) (13) of the temporary weir plate (3) and the lining panel (10) and screwed to the end tool (32) to attach the shaft foot (35). The through holes (3a) and (13) are arranged in a penetrating state. Further, the restraining bar fixing metal fittings (4
1) are respectively screwed, and a large number of restraining bars (42) are arranged in a grid pattern along the outer surface of the temporary weir plate (3) and the inner surface of the lining panel (10). Then, in a state in which the inhibition rail locking metal fitting (41a) of the inhibition rail fixing metal fitting (41) is locked to the vertical inhibition rail (42), each of the inhibition rail fixing metal fittings (4) is
1) Fasten the nuts (43) to the restraining bars (4)
The temporary weir (3) and the lining panel (10) are pressed by 2).

On the other hand, in the portion where the partition wall (2) is formed, the lining panels (10) are fixed on both sides of the partition wall (10), and spacers (30) are installed between the facing lining panels (10). Similarly to the above, a plurality of lining panels (10) are joined together through the panel rimming frame (20) to form lining panel groups facing each other, and at the same time, the axial foot (35),
Suppression bar fixing bracket (41), suppression bar (42), nut (4)
3) Install temporary restraining means such as.

In this embodiment, the spacer (30)
About 6 pieces are arranged for one lining panel (10), and are arranged at intervals of about 600 mm vertically and horizontally.

After the formwork is assembled in this way, a backing material (50) such as concrete is placed in the space between the temporary dam (3) and the lining panel (10) and in the space between the lining panels (10). Fill.

Then, after the backing material (50) is cured and cured,
The nut (43) is removed, and the temporary restraining means such as the restraining bar fixing fitting (41), the restraining bar (42) and the shaft foot (35) are removed, respectively, and the temporary dam (3) is removed.

Next, as shown in FIGS. 6 to 8, the shaft portion (55) of the mushroom bolt (55) made of hard polyvinyl chloride is used.
a) through the through holes (3a) of the lining panel (10)
Insert the end piece (32) of the spacer (30) through the (13).
And the lining panel (10) is pressed and held toward the backing material (50) by the umbrella-shaped head (55b). At this time, a caulking material (56) such as silicon is applied to the lower surface side of the umbrella-shaped head (55b) in advance, and the umbrella-shaped head (5
Seal between 5b) and the lining panel (10).

Subsequently, a caulking material (56) such as silicon is filled in the gap between the panel framing frame (20) and the lining panel (10) from the surface side of the lining panel (10) and the gap is sealed. To do.

The sealing treatment (waterproofing treatment) with the caulking material (56) may be performed at any stage during the construction of the liquid tank.

After the concrete skeleton wall is formed in this way, floor finishing is performed as shown in FIG.

For example, a concrete floor base (60)
A groove type molded product (61) made of vinyl chloride for securing a spring water path is installed in the chamber, and a contact plate (62) made of expanded polystyrene is installed.

Subsequently, a floor board (63) made of hard vinyl chloride
Is laid and the floor plate (63) is welded to the groove type molded product (61).

Next, holes are made in the floor plate (63), the contact plate (62) and the floor substrate (60) with a drill or the like, and the floor substrate (6)
Anchor member (64) is fixed to the hole (0).

Then, a mushroom-shaped bolt (65) made of hard vinyl chloride is attached to the lower surface of the umbrella-shaped head by caulking material (66).
Is applied and fastened to the anchor member (64) to hold the floor plate (63) downward.

Then, caulking material (67) is filled in the corners of the walls and the corners of the walls and the floor, and each corner is made of a rigid vinyl chloride L-shaped angle member (68). ) Is installed and the angle member (68) is
Weld to lining panel (10) or floorboard (63).

In this way, the concrete liquid tank (1) is formed.

As described above, according to the liquid tank (1) of this embodiment, the inner surface of the side wall is made of the synthetic resin lining panel (1).
Since it is covered with 0), it is possible to permanently obtain excellent corrosion resistance. Moreover, adjacent lining panels (1
0) is fitted into both grooves (21) (21) of the H-shaped panel edging frame (20) to join the panels together, and the lining panel (10) and the edging frame (20). ) Is filled with the caulking material (56), the joint portion of the lining panel (10) is surely sealed, and even in the joint portion, it is possible to obtain a permanently excellent anticorrosion property. Furthermore, when joining the lining panels together, the edge of the panel (10) should have an H-shaped frame (2
Since it is a simple work of fitting in the groove (21) of 0), it can be easily installed without requiring a troublesome welding work or the like.

Further, since the lining panel (10) is used as a dam when placing concrete and as a lining material after hardening of the concrete, it is not necessary to remove the dam. Therefore, it is possible to save the material because the weir is not used, and it is possible to reduce the work period and labor because the weir removal work is not required. In particular, when a lining layer is formed on both sides of the partition wall (2) or the like, it is not necessary to remove the dams on both sides, and the construction can be performed more efficiently and easily.

In the lining panel (10), a mushroom-shaped bolt (55) passing through the lining panel (10) is screwed to the spacer (30) in the backing material (50), whereby the backing material (5) is formed.
Since the lining panel (10) is held in a pressed state by 0), the lining panel (10) is not directly affected by the stress of the backing material (50), and even if the backing material (50) is distorted or deformed,
Even if cracks, cracks or the like occur or break, the lining panel (10) is not damaged, and excellent corrosion resistance can be maintained for a longer period of time.

In the present invention, needless to say,
The size of the lining panel and the number of spacers to be installed are not limited to the above.

[0044]

As described above, according to the present invention, a backing layer of concrete or the like is formed by using a plurality of synthetic resin lining panels joined together through an H-shaped panel framing frame as a dam. Since the lining panel is connected to and held by the rigid member in the backing layer by the connecting member, the wall surface is covered with the lining panel, and a concrete skeleton wall having excellent corrosion resistance can be formed permanently. In particular, since the edges of adjacent lining panels are fitted in both grooves of the H-shaped frame to join the panels together, the panel joining part (joint part) is reliably sealed and even in the joint part. Excellent corrosion resistance can be permanently obtained. Furthermore, since the lining panel is used as a dam when placing concrete, and as a lining material after the concrete is hardened, it is not necessary to remove the dam, and therefore the construction can be done efficiently and easily. In addition, since the lining panel is pressed and held on the backing material side by connecting the mushroom-shaped connecting member that penetrates it to the rigid member inside the backing material, the lining panel is affected by the stress of the backing material. Even if the backing material is deformed, cracked, cracked, or otherwise damaged, the lining panel will not be damaged and excellent corrosion resistance will be maintained for a longer period of time. The effect of being able to maintain the target is obtained.

In the present invention, when the gap between the lining panel and the panel framing frame and the gap between the lining panel and the connecting member are subjected to anticorrosion treatment with a caulking material, these gaps are more reliably sealed and more There is an advantage that excellent corrosion resistance can be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a formwork applied to an embodiment method of the present invention.

FIG. 2 is a cross-sectional view showing an outer peripheral wall of a liquid tank formed by an example construction method in a state immediately after placing concrete.

FIG. 3 is a cross-sectional view showing a partition wall of a liquid tank formed by the embodiment method immediately after concrete is poured.

FIG. 4 is a front view showing the wall portion of the liquid tank formed by the embodiment method in a state in which the framework is completed.

FIG. 5 is a plan cross-sectional view showing a liquid tank formed by an example construction method at an upper stage when the framework is completed.

FIG. 6 is a cross-sectional view showing the periphery of a lining panel connection portion of a liquid tank wall formed by the method of the embodiment.

FIG. 7 is a cross-sectional view showing the periphery of a lining panel joint portion of a liquid tank wall formed by the method of Example.

FIG. 8 is a front view showing a liquid tank wall formed by the embodiment method.

FIG. 9 is a cross-sectional view showing the periphery of a lower end corner portion of a liquid tank formed by an example construction method.

FIG. 10 is a perspective view showing a liquid tank formed by an embodiment method.

11A and 11B are views showing a lining panel used in the method of the embodiment, in which FIG. 11A is a perspective view and FIG. 11B is a sectional view.

FIG. 12 is a perspective view showing a part of a panel edging frame used in the construction method of the embodiment.

[Explanation of symbols]

 3 ... Temporary weir board 10 ... Lining panel 20 ... Panel framing frame 30 ... Spacer (rigid member) 35 ... Shaft foot (temporary restraining means) 41 ... Suppression rail fixing metal fitting (temporary restraining means) 42 ... Suppression rail (temporary restraining means) ) 43 ... Nut (temporary restraining means) 55 ... Bolt (mushroom-shaped connecting member) 55a ... Shaft portion 55b ... Head portion (umbrella portion) 56 ... Caulking material

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location E04H 7/18 E04H 7/18 B

Claims (3)

[Claims] 1. A panel framing frame made of a synthetic resin, the edges of which are H-shaped in cross section, of at least one weir among a pair of weirs arranged to face each other with a plurality of rod-shaped rigid members interposed therebetween in a stretched manner. It is composed of a plurality of synthetic resin lining panels fitted in both grooves and joined together, and in a state where the space between the pair of dams is held by the temporary restraining means, a backing material such as concrete between the dams. After curing the backing material by curing and curing the backing material, the temporary restraining means is removed in a mode in which the weir board constituted by the lining panel is left, and at least the umbrella portion is formed of a plurality of mushroom-shaped mushrooms. A lining panel-equipped concrete structure in which the shaft portion of the connecting member is penetrated through each lining panel and connected to the rigid member, and each lining panel is pressed and held by the umbrella portion toward the backing material side. Construction method of REIT body wall. 2. The method according to claim 1, further comprising the step of waterproofing a gap between the lining panel and the panel framing frame with a caulking material, and the step of waterproofing a gap between the lining panel and the connecting member with a caulking material. Construction method of concrete skeleton wall with lining panel. 3. A plurality of synthetic resin lining panels are provided on at least one surface of a backing layer of concrete or the like in which a plurality of rod-shaped rigid members are embedded so as to penetrate from one surface to the other surface.
Plural mushroom-shaped connecting members in which end edges of adjacent panels are fitted and joined together in both grooves of a synthetic resin panel edging frame having an H-shaped cross section, and at least an umbrella portion is made of synthetic resin The shaft portion of the lining panel is penetrated into each lining panel and connected to the rigid member, and each lining panel is pressed and held to the backing layer side by the umbrella portion, and the structure of the concrete skeleton wall with the lining panel is characterized in that .