JPH0942716A - Executing method for concrete skeleton wall of heat storage tank and structure thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the excellent waterproofness in the entire area of a wall by holding the interval of sheathing boards made of a plurality of waterproofing panels by temporary construction inhibiting means, charging and curing backing material between a pair of the boards, then so removing the means as to retain the boards, and sealing between the panels by caulking material. SOLUTION: Form ties 41 are engaged with shaft legs 35, and sheathing boards 3 and waterproofing panels 10 are assembled via many rigid members 30 in a strutting state in a temporarily clamped state. After a form is assembled in this manner, backing material 50 such as concrete is placed between the temporary boards 3 and the panels 10, cured, hardened, and then temporarily holding means is removed. Caulking material is stuck along the seam between the adjacent panels from the inner surface side of the panels 10. Thus, the permanently excellent waterproofness can be obtained on the entire wall area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method and structure for a concrete skeleton wall in a heat storage tank installed in the basement of a building or the like.

[0002]

2. Description of the Related Art A heat storage tank installed underground in a building or the like is generally made of concrete and is installed and installed underground. As a heat storage tank of this type, for example, a concrete wall is formed by a well-known construction method using a plywood frame, a heat insulating material is attached to the wall surface, and a waterproof sheet is attached thereon.

[0003]

However, in order to construct the concrete skeleton wall described above, many steps are required, such as a step of forming a concrete skeleton, a step of attaching a heat insulating material to the wall surface, and a step of waterproofing. There is a problem that it takes a lot of time and money. In addition, since many wooden consumables such as plywood are used, there is a problem that environmental problems such as deforestation, which has recently become a social issue, cannot be dealt with.

Therefore, in recent years, of the pair of dams for forming the tank wall of the heat storage tank, the dams inside the tank are formed of a plurality of synthetic resin plates, and after the concrete is set and cured, the synthetic resin plates are formed. A technique has been proposed in which the plate is left and used as a waterproof panel for a heat storage tank. With this technology, it is not necessary to remove the waterproof panel that is one of the weir plates, so it is possible to improve workability, and it is possible to reduce the use of plywood-made weir plates, which leads to the above environmental problems. Can also deal with.

By the way, as such a waterproof panel,
There are various configurations such as a hard synthetic resin single layer plate and a laminated plate in which a hard synthetic resin layer is laminated on a foamed resin plate, but there is good elasticity because it can withstand concrete lateral pressure. In order to secure it, it is necessary to use thick ones. For this reason, when a waterproof panel made of a single layer plate of hard synthetic resin is used, the material cost is soared that an economical disadvantage is caused, and the increased weight also increases the burden on the worker at the time of construction.

On the other hand, a method of constructing a tank wall using a waterproof panel made of laminated plates is disclosed in Japanese Patent Application Laid-Open Nos. 1-294484 and 6-193919. In this construction method, as the waterproof panel, a laminated plate in which a waterproof layer made of polyvinyl chloride is formed on one surface (inner wall surface) of a foamed resin plate such as urethane foam or styrene foam is used. In this construction method, the core layer of the waterproof panel is made of a lightweight and inexpensive foam resin plate, so that it is possible to reduce costs while ensuring a predetermined wall thickness, and the polyvinyl chloride layer provides good waterproofing. You can get sex.

However, in this construction method, since the waterproof layer is laminated only on one surface of the waterproof panel, the tension balance between the front and back is likely to be disturbed, and the panel may be warped. If the panel warps, for example, it will not be possible to accurately arrange it in a planar shape, not only will it be difficult to construct, but the waterproof layer will peel off, and the protection of the foamed resin plate will be insufficient,
The foamed resin plate may be broken when the panel is carried in, and the product value may be impaired.

Further, in this construction method, since the foamed resin plate forming the core layer is in direct contact with the surface of the concrete skeleton, the backwater flowing between the two causes the foamed resin plate to deteriorate at an early stage, resulting in sufficient durability. It also has the problem that it cannot be obtained.

Further, in this construction method, after concrete is hardened to remove formwork such as flap material, a screw penetrating the waterproof panel is fastened to a separator or the like in the concrete layer, and the screw is used. , Is to press a vinyl chloride coated steel plate (PVC steel plate) against the waterproof panel surface to hold the waterproof panel against the concrete frame surface side, but after removing the formwork and before screwing, the waterproof panel is made of concrete. It may peel off from the body surface, and in some cases the waterproof panel may fall off.

Further, in the wall surface finishing, since it is necessary to cover the screws for fixing the panel and the periphery of the vinyl chloride steel plate with a waterproof sheet in order to perform waterproof treatment, a waterproof sheet covering step is required separately, and the number of steps increases. However, there is a problem that the construction work becomes complicated and the cost is increased.

The present invention solves the above-mentioned problems of the prior art, can obtain a permanently excellent waterproof property over the entire wall surface, and further, a harmful warpage occurs in the waterproof panel installed on the wall surface. It is an object of the present invention to provide a construction method and structure of a concrete skeleton wall in a heat storage tank, which can prevent the peeling of the waterproof panel end portion from the concrete skeleton and can be easily and inexpensively constructed.

[0012]

In order to achieve the above object, in the construction method of the concrete skeleton wall in the heat storage tank of the first invention of the present application, a front surface layer and a back surface layer made of hard synthetic resin are provided on both front and back surfaces. A plurality of waterproof panels made of laminated plates are prepared, and a plurality of anchor pieces that have panel end fitting grooves on one side and the other side that open in opposite directions and that extend orthogonal to the groove opening direction are provided. A plurality of waterproof panels in which a joint member is prepared and a weir plate inside a tank among a pair of weir plates that are opposed to each other via a plurality of rod-shaped rigid members in a stretched state are a plurality of waterproof panels arranged in a plane. The pair of cuffs are formed by a plurality of waterproof panels obtained by fitting end portions of adjacent panels to each other in the fitting grooves of the joint member in which the anchor pieces are arranged in a protruding manner between the plates, and are joined together. Temporarily suppress the space between plates Holding means, and in the holding state, a backing material is filled between the pair of dams so as to embed the rigid member and the anchor piece, and the backing material is cured and cured, and then the waterproofing is performed. In a mode in which the weir board constituted by the panel remains, the temporary restraining means is removed, and a caulking material is applied to the umbrella portion of a plurality of mushroom-shaped synthetic resin connecting members, and the shaft portion is a waterproof panel. Is connected to the rigid member by pressing through to the backing material side by the umbrella portion, and the caulking material seals between the umbrella portion and the waterproof panel.

In the first invention, the waterproof panel is
Since it is used as a dam when placing backing material and as a waterproof layer after construction, it is not necessary to remove the dam formed by the waterproof panel. Moreover, the work of installing the waterproof panel can be easily performed by fitting the end portion of the waterproof panel into the fitting groove of the joint member. Furthermore, since the inner surface of the tank wall is covered with the surface layer made of the hard vinyl chloride resin of the waterproof panel, it is possible to obtain a permanently excellent waterproof property.

Further, the mushroom-shaped connecting member having the umbrella portion coated with the caulking material is penetrated through the waterproof panel to be connected to the rigid member, so that the fixing work of the waterproof panel and the waterproof treatment around the panel through hole can be performed at the same time. Therefore, it is not necessary to separately perform a waterproof treatment around the panel through hole by using a waterproof sheet or the like as in the conventional case.

Further, since the waterproof panel is composed of a laminated plate in which hard synthetic resin layers are formed on both front and back surfaces of a foamed resin plate or the like, tension balance can be maintained between the front and back surfaces, which is harmful to the panel. It is possible to reliably prevent warpage.

Further, since the anchor piece is formed on the joint member for joining the ends of the panel and the anchor piece is embedded and fixed in the backing layer, it is possible to reliably prevent the panel from rising from the concrete skeleton.

On the other hand, the structure of the concrete skeleton wall in the heat storage tank of the second aspect of the present invention has been made in order to achieve the above-mentioned object, and the back side in which a plurality of rod-shaped rigid members are embedded so as to penetrate from the outer surface to the inner surface is embedded. On the inner side of the inner layer, a plurality of waterproof panels with front and back layers made of hard synthetic resin on both sides are arranged in a plane, while one side and the other side that opens in opposite directions is fitted. In both fitting grooves of the joint member having a groove, end portions of adjacent waterproof panels are fitted and joined together, and an anchor piece provided in the joint member is embedded and fixed in the backing layer, Shafts of a plurality of mushroom-shaped synthetic resin connecting members are connected to the rigid member by penetrating each waterproof panel, and each waterproof panel is pressed and held toward the backing layer side by the umbrella portion of the connecting member. , Inter umbrella and waterproof panel is summarized as made is sealed by King material.

This second invention specifies the structure formed by the use of the method of the first invention.

As the backing material in the present invention, in addition to general ordinary concrete, polymer cement systems such as aqueous dispersion cement system and water-soluble polymer cement system, and mortar can be used. be able to.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION A case of forming a heat storage tank (1) having a partition wall (2) inside as shown in FIG. 1 will be described below based on the construction method of the present invention.

First, in forming this heat storage tank (1), the waterproof panel (10) shown in FIGS. 16 and 17 and FIG.
A large number of joint members (20) shown in FIG. 8 and panel stand fittings (25) shown in FIG. 19 are prepared.

The waterproof panel (10) has a three-layer laminated plate having a thickness of 12 mm, a width of 900 mm and a length of 1800 mm in which a front surface layer (12) and a back surface layer (12) are formed on both surfaces of a core layer (11). It is configured. Further, the core layer (11) is made of a polystyrene foam plate having a foaming ratio of about 10 times and a thickness of 10 mm, and the front and back double-sided layers (12) and (12) are respectively made of a hard vinyl chloride resin plate having a thickness of 1 mm. Are bonded and integrated with an epoxy adhesive.
Further, the surface layer (12) arranged inside the tank at the time of construction is formed such that the outer peripheral edge (13a) is arranged inwardly from the panel edge by about 3 mm, and the surface layer (12) expands and contracts due to linear expansion. When it does, it is configured to be able to absorb the expansion and contraction.

In the present invention, the materials for the front surface layer (12) and the back surface layer (12) are not particularly limited, and any hard synthetic resin excellent in waterproof property can be used. Those made of the above-mentioned hard vinyl chloride resin can be preferably used. Further, considering the tension balance between the front and back surfaces of the panel (10), the surface layer (12)
The back surface layer (12) and the back surface layer (12) are preferably made of the same material and have the same thickness, but if the tension balance between the front and back surfaces can be kept good, the front surface layer (12) and the back surface layer (12) May be formed of different materials or may have different thicknesses.

Also, the material of the core layer (11) is not particularly limited, and in view of cost and weight, it is preferable to use a material made of foamed resin (resin foam), honeycomb core, or the like. Those made of the above polystyrene foam can be preferably used.

The joint member (20) shown in FIG.
A panel end fitting groove (21a), which is made of a bent product of a stainless steel plate having a thickness of 0.5 mm, has both front and rear sides of an intermediate part bent upward to open upward.
Is formed, and both front and rear sides of both end portions are bent downward so that the panel end fitting groove (21
b) (21b) is formed. Further, the front end of the rear wall of the central fitting groove (21a) is bent rearward to form an anchor piece (22).

Further, the panel stand fitting (25) shown in FIG.
Is a substantially U-shaped side view, has a fitting groove (25a) into which the lower end of the waterproof panel (10) can be fitted and removed, and mounting pieces (25b) are formed on both sides of the lower wall. The tip of the rear wall is bent rearward to form an anchor piece (25c).

In this embodiment, the waterproof panel (1
0), joint member (20) and panel stand (2)
5) etc. are used to form the heat storage tank (1) as described below.

First, as shown in FIGS. 2 and 3, the soil around the heat storage tank formation site is dug up and the concrete foundation (6
0) is formed.

Then, a mold for forming the peripheral wall of the heat storage tank (1) and the partition wall (2) is assembled. At this time, of the pair of weirs for forming the peripheral wall, the weir (3) on the outer side of the tank is formed by a well-known construction method using a wooden board, a concrete panel or the like, and the weir on the inner side of the tank is formed by the above-mentioned waterproof panel ( 10) etc. are used.

In order to form a dam with the waterproof panel (10), first, a plurality of panel stand fittings (25) are fixed at intervals along the waterproof panel installation position of the concrete foundation (60). At this time, with the anchor piece (25c) of the panel stand metal fitting (25) arranged so as to project toward the temporary weir plate (3) side, the attachment piece (25b) (FIG. 19).
The reference) is fixed to the concrete substrate (60) with bolts or the like.

Subsequently, the lower ends of the waterproof panels (10) are fitted into the fitting grooves (25a) of the panel stand fittings (25), respectively, and the plurality of waterproof panels (10) are arranged in a plane at the first stage. Stand upright.

Subsequently, as shown in FIGS. 4 and 5, a large number of rigid members (30) having metal end pieces (32) screwed to both ends of the metal separator (31) are attached to the temporary weir plate (3). ) And the waterproof panel (10). Specifically, a plurality of separation holes (3a) (13) formed by threading holes formed in the end tool (32) of each rigid member (30) in the temporary weir plate (3) and the waterproof panel (10). ) Respectively, a plurality of axle feet (35) are attached to respective separation holes (3a) (13).
And threadedly attach to the end pieces (32),
A foam tie (41) is screwed onto each shaft leg (35), and a large number of rigid members (30) are tensioned to assemble the two support plates (3) (10) in a temporarily fixed state.

It should be noted that the rigid member (30) has a ratio of about 6 to one waterproof panel (10), and is approximately 6 vertically and horizontally.
It is good to arrange them at intervals of 00 mm.

Then, as shown in FIG. 5, FIG. 7 and FIG.
The joint member (20) is attached to the upper end of the first waterproof panel (10) at a position corresponding to each panel by fitting the lower fitting groove (21b) into the upper end of the panel. At this time, each joint member (20)
Are arranged so that the anchor pieces (22) thereof project toward the temporary weir plate (3).

Next, a plurality of second-stage waterproof panels (10) are arranged so that their lower ends are fitted into the upper fitting grooves (21a) of the joint member (20).

Subsequently, a large number of rigid members (3) are provided between the second waterproof panel (10) and the temporary weir plate (3) as described above.
Place 0) in a strut form.

Further, if necessary, the third and subsequent waterproof panels (10) are arranged in the same manner as described above, and thus the inner dam is formed by the plurality of waterproof panels (10).

Subsequently, a large number of restraining bars (42) are arranged in a grid pattern along the outer surface of the temporary weir board (3) and the inner surface of the waterproof panel (10), and the vertical restraining bars (42) are formed by foam ties (42). 41), the foam tie (41) is firmly fastened to the shaft foot (35), and the temporary bar (3) and the waterproof panel (10) are held in a pressed state by the restraining bar (42). Then, as shown in FIG. 9, a mold for forming the peripheral wall is assembled.

In the present embodiment, the shaft foot (3
5), the foam tie (41), the restraining bar (42) and the like constitute a temporary restraining means.

On the other hand, in the partition wall forming portion, as shown in FIG.
As shown in FIG. 5, a waterproof panel group composed of a plurality of waterproof panels (10) and facing each other is formed in the same manner as described above, and a large number of rigid members (30), shaft feet (35), and foam ties (41 ) Further, the restraining bar (42) is installed in the same manner as above, and a mold for forming a partition wall is assembled.

Further, as shown in FIG. 8, in the ceiling wall forming portion, a supporting work (45) is assembled corresponding to the lower surface of the ceiling wall, and a root tree (46) is laid on it. And root tree (4
A plurality of waterproof panels (10) are arranged on 6) so that a joint member (20) is interposed between the panels in the same manner as described above, and a frame for forming a ceiling wall is assembled.

After the molds are assembled in this way, as shown in FIG. 10, between the temporary barrier plate (3) and the waterproof panel (10) in the peripheral wall forming portion, between the opposing waterproof panels (10) in the partition wall forming portion, On the waterproof panel (10) in the ceiling wall forming part, the backing material (5
Place 0). At this time, the anchor piece (22) of the joint member (20) and the anchor piece (2) of the panel stand metal fitting (25), which are respectively arranged between the two weir plates (3) and (10).
5c) and the rigid member (30) are embedded by the backing material (50).

Next, after the backing material (50) is cured and hardened, the foam tie (41), the restraining bar (42) and the shaft foot (35).
Temporary deterrent means such as etc., support work in the ceiling wall formation part (4
5) and the temporary holding means such as the root tree (46) are removed, and the temporary dam (3) is removed.

After that, side wall surface finishing and ceiling wall surface finishing are performed.

First, in the side wall surface finishing, as shown in FIG. 11, a shaft portion (55a) of a hard polyvinyl chloride mushroom bolt (55) made of an integrally molded product by injection molding.
Is inserted into each separation hole (13) of the waterproof panel (10), is fastened to the end tool (32) of the rigid member (30), and the waterproof panel (10) is back-inserted by the umbrella head (55b). Material (5
Press and hold to the 0) side. At this time, the caulking material (56) such as silicon is previously formed on the inner surface of the umbrella head (55b).
Is applied, and the umbrella head (55b) and the waterproof panel (1
Seal between 0).

Then, as shown in FIGS. 12 to 14,
A joint tape (71) such as craft tape is attached along the joint (joint portion) between the adjacent panels from the inner surface side of the waterproof panel (10), and each joint tape (71) and the joint member (20). A vinyl chloride waterproof sheet (72) is adhered or welded to cover the
Further, a sealing material (73) is applied to both side edges (edge) of the waterproof sheet (72).

On the other hand, in finishing the ceiling wall surface, as shown in FIG. 15, a through hole (13) is formed in each waterproof panel (10), and a mounting hole is also formed in the backing layer (50) correspondingly. Make a hole. Next, a donut-shaped disc plate (7 with soft vinyl chloride sheets attached to both sides of the steel plate)
Insert the nylon anchor plug (74) into the central hole of 5), and further insert the screw (76) into the plug (74), and then insert the plug (74) into the through hole (13) of the waterproof panel (10). And through the mounting holes in the backing layer (50) and screw the screw (76) firmly into the plug (74). As a result, the insertion side end of the anchor plug (74) widens to prevent the anchor plug (74) from being pulled out, while the disk plate (75) is pressed toward the backing layer (50) by the screw (76), and each waterproof panel ( 10) is pressed and held toward the backing layer (50).

Further, joint tape is attached along the joint between the waterproof panels (10) adjacent to each other on the ceiling wall surface so as to cover the joint tape and the joint member (20) and the disc plate (75). While adhering or welding the waterproof sheet (72), the sealing material (73) is applied to the edge of the waterproof sheet (72).

As shown in FIG. 2, the waterproof sheet (72) is adhered or welded to the corner portions between the side wall surfaces and the side wall surfaces and the corner portions between the side wall surfaces and the ceiling wall surface in the same manner as described above. The sealing material (73) is applied to the edge of the waterproof sheet (72).

After finishing the side wall surface and the ceiling wall surface in this manner, floor finishing is performed.

That is, as shown in FIGS. 2 and 3, a grooved molded product (61) made of vinyl chloride for securing a spring water path is installed at a predetermined position of the concrete foundation (60), and a polystyrene foam is used. A plurality of heat insulating materials (62) are installed.

Next, mounting holes are bored in the heat insulating material (62) and the concrete foundation (60). Subsequently, the anchor plug (63a) was inserted into the center hole of the donut-shaped disc plate (64) in which soft vinyl chloride sheets were attached to both sides of the steel plate, and the screw (65) was inserted into the plug (63a). In the state, plug (63a) into the heat insulating material (62)
And, it is inserted into the mounting hole of the concrete base (60), and the screw (65) is screwed into the plug (63a) firmly. Thus, in the same manner as above, the disc plate (64) and the heat insulating material (6
2) is pressed and fixed to the concrete substrate (60) side.

Next, after laying a polyethylene sheet (66) on the heat insulating material (62), an L-shaped metal fitting (67) in which soft vinyl chloride sheets are attached to both surfaces of the L-shaped steel sheet.
Are arranged along the corners between the floor surface and the side wall surface, and the L-shaped press fitting (67), the polyethylene sheet (66) and the heat insulating material (62) are attached to the anchor plug (63) in the same manner as above.
b) and the screws (68) to the concrete substrate (6
Fixed to 0).

Subsequently, a waterproof sheet (69) made of soft polyvinyl chloride is adhered or welded so as to cover the entire floor surface together with the lower edge of the side wall surface, and the sealing material (73) is attached to the edge of the sheet (69). Apply.

Thus, the construction of the heat storage tank (1) is completed.

According to this heat storage tank (1), the entire inner surface of the tank wall is covered with the surface layer (12) made of the hard vinyl chloride resin of the waterproof panel (10), so that the waterproof property is permanently excellent. Obtainable. Furthermore, the waterproof panel (10)
Since it can be used as a dam when placing the backing material and as a waterproof layer after construction, it is not necessary to remove the dam formed of the waterproof panel (10). In addition, the work of installing the waterproof panel (10) can be easily performed by fitting the end portions of the waterproof panel (10) into the fitting grooves (21a) (21b) of the joint member (20). Can be shortened, labor can be reduced, and cost can be reduced. Moreover, the use of wooden consumables such as plywood weirs can be reduced, and environmental problems such as deforestation can be dealt with appropriately.

A mushroom-shaped bolt (55) having a caulking material (56) applied to the umbrella-shaped head (55b) is passed through the separation hole (13) of the waterproof panel (10) to make the rigid member (3).
By fastening it to 0), the waterproof panel fixing work and the waterproof treatment around the separation hole are simultaneously performed. Therefore, for example, the work of adhering a waterproof sheet or the like around the separation hole can be omitted, and the construction work can be further facilitated. Moreover, the waterproof panel (10) has the rigid member (30) through the bolt (55).
Since it is fixed to, the waterproof panel (10) is not directly affected by the stress of the backing material (50),
Even if the backing material (50) is distorted, cracked, cracked, or broken, the waterproof panel (10) is not adversely affected and excellent waterproofness can be maintained for a longer period of time. .

In this embodiment, the waterproof panel (1
0) is a front and back surface layer (12) made of hard vinyl chloride resin and having the same thickness on both front and back surfaces of the polystyrene foam plate.
Since it is composed of the laminated plate on which (12) is formed, the tension balance between the front and back is achieved, and the panel (1
It is possible to prevent harmful warpage in (0). For this reason, peeling between layers can be prevented, the desired waterproofness can be surely obtained, and the core layer (11) made of a polystyrene foam plate can be surely protected, so that when the panel is carried in,
It is possible to prevent breakage of the polystyrene foam plate. Further, since the warp of the panel (10) can be prevented, the panel (10)
The construction on the concrete frame can be done reliably.

Further, an anchor piece (22) is formed on the joint member (20) for joining the ends of the panel (10), and the anchor piece (22) is embedded and fixed in the backing layer (50). Therefore, for example, when the temporary restraining means is removed, it is possible to reliably prevent a problem such as the panel (10) peeling off from the concrete skeleton and falling off.

Further, according to this heat storage tank (1), since the back surface layer (12) made of the hard vinyl chloride resin is also formed on the back surface side of the waterproof panel (10), the back water is the back surface of the waterproof panel. Since it flows between the layer (11) and the concrete skeleton, adverse effects of backwater on the waterproof panel core layer (11) are avoided, and the core layer (1) such as a polystyrene foam board is avoided.
The early deterioration of 1) can be prevented, and sufficient durability can be obtained.

Further, since the waterproof sheet (72) is adhered or welded to the joint between the waterproof panels (10), excellent waterproofness can be obtained even in the joint.

[0062]

As described above, according to the present invention, it is possible to obtain a permanently excellent waterproof property over the entire wall surface, and further, a harmful warpage occurs in the waterproof panel installed on the wall surface. It is possible to obtain an effect that the heat storage tank that can reliably prevent the heat generation and that can prevent the panel from peeling off from the concrete skeleton can be easily and inexpensively constructed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a side wall portion of a heat storage tank according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a heat storage tank of the embodiment by cutting out.

FIG. 3 is a cross-sectional view showing a lower end corner portion of the heat storage tank of the embodiment.

FIG. 4 is an exploded perspective view of the mold of the embodiment.

FIG. 5 is a cross-sectional view showing the outer peripheral wall of the heat storage tank of the embodiment immediately after the backfill material is placed.

FIG. 6 is a cross-sectional view showing the partition wall of the heat storage tank of the embodiment in a state immediately after placing the backfill material.

FIG. 7 is an exploded perspective view showing a waterproof panel joint portion in the heat storage tank of the embodiment.

FIG. 8 is a cross-sectional view showing the ceiling wall of the heat storage tank of the embodiment immediately after the backfill material is placed.

FIG. 9 is a front view showing a side wall of the heat storage tank of the embodiment in a mold assembly state.

FIG. 10 is a plan sectional view showing a side wall of the heat storage tank of the embodiment in a form assembled state.

FIG. 11 is a cross-sectional view showing the periphery of the panel fixing portion of the heat storage tank of the embodiment.

FIG. 12 is a cross-sectional view showing the periphery of the joint member of the panel joint portion in the heat storage tank of the embodiment.

FIG. 13 is a cross-sectional view showing the periphery of a panel joint portion of the heat storage tank of the embodiment.

FIG. 14 is a front view showing a side wall of the heat storage tank of the embodiment.

FIG. 15 is a cross-sectional view showing a ceiling wall of the heat storage tank of the embodiment.

FIG. 16 is a cross-sectional view showing a waterproof panel applied to the embodiment.

FIG. 17 is a perspective view showing a waterproof panel applied to the embodiment.

FIG. 18 is a perspective view showing a joint member applied to the embodiment.

FIG. 19 is a perspective view showing a panel stand fitting applied to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Heat storage tank 3 ... Temporary dam 10 ... Waterproof panel 12 ... Surface layer, back surface layer 20 ... Joint member 21a ... Upper fitting groove 21b ... Lower fitting groove 22 ... Anchor piece 30 ... Rigid member 50 ... Backing material (Backing layer) 55 ... Bolt 55a ... Shaft 55b ... Umbrella head 56 ... Caulking material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriyasu Sagara 1-28-10 Hamadayama, Suginami-ku, Tokyo (72) Inventor Hiroo Izumiyama 1001-17 Nishiderakatacho, Hachioji City (72) Inventor Koji Iwai Tokyo 4-10-19 Mejiro, Toshima-ku (72) Inventor Ryuzo Ikegami 4-50-703 Koueto-cho, Nishi-ku, Hiroshima City (72) Inventor Yukio Senda 22-12, Minami 12 Nishi, Chuo-ku, Sapporo City

Claims (2)

[Claims] 1. A plurality of waterproof panels each comprising a laminated plate having front and back surfaces made of hard synthetic resin provided on both front and back surfaces are prepared, and panel end fittings on one side and the other side which are open in opposite directions are provided. A plurality of joint members having grooves and provided with anchor pieces extending orthogonally to the groove opening direction are prepared, and a tank of a pair of weir plates arranged to face each other through a plurality of rod-shaped rigid members in a strut shape. A plurality of waterproof panels in which an inner weir is arranged in a plane, and the ends of adjacent panels are in the both fitting grooves of the joint member in which the anchor pieces are arranged in a protruding manner between a pair of weirs. It is formed by a plurality of waterproof panels in which the parts are fitted and joined together, and the space between the pair of dams is held by the temporary restraining means, and in the held state, the rigid member and the rigid member are provided between the pair of dams. Embed the anchor piece After filling the backing material as described above and curing and curing the backing material, the temporary restraining means is removed in a mode in which the weir board constituted by the waterproof panel remains, and a plurality of mushroom-shaped synthetic materials are removed. A caulking material is applied to the umbrella part of the resin connecting member, the shaft part is penetrated through the waterproof panel to connect to the rigid member, and the umbrella part presses and holds each waterproof panel toward the backing material side. At the same time, a method for constructing a concrete skeleton wall in a heat storage tank, wherein the umbrella portion and the waterproof panel are sealed by the caulking material. 2. A plurality of waterproofs in which a front surface layer and a back surface layer made of a hard synthetic resin are provided on both front and back surfaces on the inner surface side of a backing layer in which a plurality of rod-shaped rigid members are embedded so as to penetrate from the outer surface to the inner surface. While the panels are arranged in a plane, the end portions of the adjacent waterproof panels are fitted and joined to the both fitting grooves of the joint member having the fitting grooves on one side and the other side that open in opposite directions. Anchor pieces provided on the joint member are embedded and fixed in the backing layer, and the shaft portions of a plurality of mushroom-shaped synthetic resin connecting members are penetrated into each waterproof panel to be connected to the rigid member. The concrete frame wall in the heat storage tank, wherein each waterproof panel is pressed and held toward the backing layer side by the umbrella portion of the connecting member, and the umbrella portion and the waterproof panel are sealed by caulking material. Structure.