KR20210072014A - Residual formwork for the formation of concrete structures - Google Patents

Abstract

The remaining formwork 13 for forming the concrete structure comprising the side wall 11 includes an inner formwork 14 forming the inner surface of the side wall, an outer formwork 16 forming the outer surface of the sidewall, and the inner formwork and the outer formwork. A plurality of longitudinal reinforcing bars 17 disposed between the outer formwork and the outer formwork or the outer formwork and the inner formwork are provided. The outer mold and the inner mold are formed in a square plate shape by plastic and are arranged in close contact with each other vertically and horizontally. A plurality of substrates 18 are formed of plastic in a square plate shape of substantially the same size as the substrate and are formed of four adjacent substrates. A plurality of central reinforcing plates 19 that are combined and arranged in close contact with each other vertically and horizontally, and a plurality of central reinforcing plates formed in a rectangular plate shape by plastic and arranged in close contact with each other vertically and horizontally. It has a plurality of end reinforcing plates 21 arranged on top.

Description

Residual formwork for the formation of concrete structures

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a formwork for forming a concrete underground beam supporting a foundation part or an underground part of a building, or a concrete side wall of a storage tank for storing rainwater. More specifically, it relates to the remaining formwork remaining on the surface of the underground beam or side wall. In addition, this international application claims priority based on Japanese Patent Application No. 190711 (Japanese Patent Application 2018-190711) filed on October 9, 2018, and the entire contents of Japanese Patent Application 2018-190711 are viewed It is used for international application.

Conventionally, a concrete bottom plate laid at the bottom of a hole dug in the ground, a storage complex formed on the bottom plate and accommodated in the hole, and a concrete rectangular cylinder formed by surrounding the storage complex on the bottom plate A storage tank provided with a side wall of (筒狀) and a side wall forming member for forming the side wall into a rectangular frame shape is disclosed (for example, Patent Document 1 (Claim 1, Claim 5, Paragraph [0019], [ 0023], see Fig. 1, Figs. 3 to 5)). In this storage tank, the storage complex includes a plurality of square plate-shaped partition plates in which at least one cylindrical rib is protruded from the lower surface and at least one cylindrical rib is formed to protrude from the upper surface, and the lower surface or upper surface of the partition plate is disposed on either or both sides. It has an ordinary spacer fitted and connected to the cylindrical rib, and an outermost layer formed by alternately arranging partition plates and spacers on the outermost side of the storage complex in the vertical direction. In addition, the side wall forming member constitutes the outermost layer portion and forms the outer surface of the outermost layer portion among the plurality of spacers constituting the outermost layer portion for each step between the plurality of steps of partition plates disposed at intervals in the vertical direction. A plurality of inner molds formed into a rectangular cylinder by arranging and forming a plurality of first plate materials so as to be in contact with the portion, and a plurality of steps of partition plates formed to form an outermost layer and spaced apart in the vertical direction, outward than the plurality of first plates A plurality of vertical reinforcing bars inserted so as to be positioned at It has a single-stage outer frame formed into a rectangular trough by spaced apart and maintained. In addition, the first plate material is a plastic corrugated cardboard material, and the second plate material is a lath network.

In the storage tank configured as described above, by pouring and hardening raw concrete between the inner and outer formwork, the side wall can be formed on the upper surface of the bottom plate, and the construction work of the storage complex, the construction work of the side wall forming member and the side wall forming work can be performed almost simultaneously. As a result, the concrete side wall can be formed by a relatively simple method and in a relatively short time without a skilled worker. In addition, even if a relatively large horizontal partial pressure of earth pressure acts on the outer peripheral surface of the storage tank, the structurally strong concrete side wall receives the partial pressure, so that damage to the storage complex can be prevented. Moreover, since the side wall made of concrete is supported by the storage composite in the storage tank, the thickness of the side wall can be suppressed to a necessary minimum. In addition, since a relatively light and relatively high-strength plastic corrugated cardboard was used as the first plate, and a relatively light and relatively high-strength lath mesh was used as the second plate, the transport and installation of the first and second plates were relatively easy. It can be carried out easily.

International Publication No. WO2017/073546

In the storage tank disclosed in Patent Document 1, since the lath net is easy to deform and has no self-support, there is a problem that a large number of steps is required to maintain the lath net in a vertically erected state as a separator. In addition, in the storage tank disclosed in Patent Document 1, if all of these storage tanks are installed on the ground, or the lower part of the storage tank is buried underground and the upper part is exposed on the ground, there is also a problem that the appearance of the outer peripheral surface of the storage tank is damaged.

On the other hand, although there is a method of stacking bricks to form an outer formwork, in this method, since the stacked bricks are not supported by a separator and have a self-supporting structure, a large amount of raw concrete is placed between the inner formwork and the outer formwork at one time. If it is poured into a brick, the outer frame made of bricks will collapse. For this reason, there was a problem in that the operation of pouring a little between the inner mold and the outer mold to harden the raw concrete and pouring a little again to harden it was repeated.

A first object of the present invention is to provide a residual formwork for forming a concrete structure that has independence and can easily assemble a strong outer formwork or an outer formwork and an inner formwork. A second object of the present invention is to improve the appearance of the outer surface of the storage tank when all of the storage tank is installed on the ground, or the lower part of the storage tank is buried in the ground and the upper part is installed to protrude from the ground, for forming a concrete structure It is to provide a residual mold of A third object of the present invention is a residue for forming a concrete structure that can easily and inexpensively produce an outer formwork or a substrate constituting the outer formwork and the inner formwork, a central reinforcing plate and an end reinforcing plate, etc. It's about providing a template. A fourth object of the present invention is to be able to maintain the outer formwork or the outer formwork and the inner formwork very easily, and to prevent deformation of the outer formwork and the inner formwork even when raw concrete is poured between the inner formwork and the outer formwork at once. It is to provide the residual formwork for concrete structure formation which can be prevented reliably.

A first aspect of the present invention is, as shown in Figs. 1 to 4, a concrete structure comprising a concrete side wall (11) erected at the bottom of a hole dug in the ground or on a concrete base (12) laid on the ground. A residual formwork (13) formed to form and remaining on the surface of the sidewall (11), an inner formwork (14) forming the inner surface of the sidewall (11), and an outer formwork forming the outer surface of the sidewall (11) (16) and a plurality of vertical reinforcing bars (17) disposed between the inner formwork (14) and the outer formwork (16) and holding the outer formwork or the outer formwork (16) and the inner formwork (14); , the outer frame or the outer frame 16 and the inner frame 14 are formed in a square plate shape by plastic and arranged in close contact with each other vertically and horizontally: a plurality of substrates 18, and a square plate shape of substantially the same size as the substrate 18 A plurality of central reinforcing plates 19 formed by plastic and arranged in close contact vertically and horizontally, and a plurality of central portions formed in a rectangular plate shape by plastic and arranged in close contact vertically and horizontally. It is characterized in that it has a plurality of end reinforcing plates (21) positioned at the outer peripheral edge of the reinforcing plate (19) and arranged in a square frame by joining adjacent substrates (18).

A second aspect of the present invention is an invention based on the first aspect, and further, as shown in Figs. 3(b) and 9, a plastic decorative plate 34 is provided on the surfaces of the plurality of central reinforcing plates 19. It is characterized in that each is attached, and the pattern 34b is protruded or concave on the surface of the decorative plate 34.

A third aspect of the present invention is an invention based on the first or second aspect, and further, as shown in FIG. 1 , a side wall 11 is embedded in the ground to support a building and is placed on the floor board 12 . It is a concrete underground beam to be formed, characterized in that the outer surface of the underground beam (11) is formed by the outer formwork (16), and the inner surface of the underground beam (11) is formed by the inner formwork (14).

A fourth aspect of the present invention is an invention based on the first or second aspect, and further, as shown in Figs. 10 to 13 , the side wall 51 is formed on the bottom plate 52 to form the storage tank 50 . It is a rectangular cylindrical side wall made of concrete formed by enclosing a rectangular parallelepiped storage complex (55), characterized in that the outer surface of the side wall (51) is formed by the outer frame (16).

In the remaining formwork of the first aspect of the present invention, an outer formwork or an outer formwork and an inner formwork are formed by vertically and horizontally joining a substrate, a central reinforcing plate, and an end reinforcing plate, and a plurality of vertical reinforcing bars are formed between the inner formwork and the outer formwork. Since the outer formwork or the outer formwork and the inner formwork are arranged and formed and the outer formwork or the outer formwork and the inner formwork are held by these longitudinal reinforcing bars, it is possible to easily assemble the outer formwork or the outer formwork and the inner formwork which has independence and is strong. As a result, even when a large amount of raw concrete is poured between the inner and outer formwork at one time, the outer formwork or the outer formwork and the inner formwork do not deform, and a concrete side wall of a predetermined shape can be formed. Further, since the substrate, the central reinforcing plate, and the end reinforcing plate are made of plastic, the substrate, the central reinforcing plate and the end reinforcing plate can be easily manufactured for the outer formwork or the outer formwork and the inner formwork. In addition, if the substrate, the central reinforcing plate, and the end reinforcing plate are formed using waste plastics, the substrate, the central reinforcing plate, and the end reinforcing plate constituting the outer formwork or the outer formwork and the inner formwork can be manufactured at low cost.

In the remaining formwork of the second aspect of the present invention, plastic decorative plates are respectively attached to the surfaces of a plurality of central reinforcing plates, and shapes are protruded or recessed on the surfaces of the decorative plates, so when the side walls are formed on the ground , a decorative plate with a protruding or concave shape on the surface is exposed. As a result, the appearance of the surface of the side wall can be improved.

In the remaining formwork according to the third aspect of the present invention, the side wall is a concrete underground beam that is buried in the ground to support a building and is formed on a bottom plate, and the outer surface of the underground beam is formed by an outer formwork, Since the inner surface is formed by the inner formwork, the outer formwork and the inner formwork are formed by vertically and horizontally joining the substrate, the central reinforcing plate and the end reinforcing plate, and a plurality of vertical reinforcing bars are arranged and formed between the inner and outer formwork, and these The outer formwork and the inner formwork are maintained by vertical reinforcing bars. As a result, it is possible to easily assemble the outer formwork and the inner formwork which have self-reliance and are strong. Moreover, even if a large amount of raw concrete is poured between the inner and outer formwork at once, the outer formwork and the inner formwork do not deform, and a concrete side wall of a predetermined shape can be formed.

In the remaining formwork of the fourth aspect of the present invention, the sidewall is a rectangular cylindrical sidewall made of concrete formed by enclosing a rectangular storage complex on a bottom plate to form a storage tank, and the outer surface of this sidewall is formed by an outer formwork. , a substrate, a central reinforcing plate, and an end reinforcing plate are vertically and horizontally joined to form an outer formwork, a plurality of vertical reinforcing bars are arranged and formed between the inner and outer formwork, and the outer form is held by these longitudinal reinforcing bars. As a result, it is possible to easily assemble an outer formwork that has independence and is strong. In addition, the inner formwork is assembled to the outer peripheral surface of the storage complex assembled on the bottom plate. In addition, compared to the case where a lattice net or bricks are used as the outer formwork, the assembly operation of the outer formwork can be greatly shortened, and even if a large amount of raw concrete is poured between the inner formwork and the outer formwork at once, the outer formwork can be Without this deformation, a concrete side wall of a predetermined shape can be formed. In addition, when all the storage tanks are installed on the ground, or the lower part of the storage tank is buried in the ground and the upper part is installed to protrude from the ground, if a decorative plate is attached to the surface of the central reinforcing plate of the outer form that protrudes from the ground, The appearance of the surface can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is principal part sectional drawing which shows the state in which the underground beam was formed using the residual formwork for concrete structure formation of 1st Embodiment of this invention.
Fig. 2 (a) is a front view showing the basic assembly procedure of the substrate of the outer formwork or the inner formwork of the remaining formwork, and (b) is a front view showing the basic procedure of bonding adjacent substrates by means of a central reinforcing plate.
Figure 3 (a) is a front view showing the basic procedure of locating an end reinforcing plate on the outer periphery of the central reinforcing plate to which the neighboring substrates are bonded, and also bonding the neighboring substrates by the end reinforcing plate, (b) is a central reinforcing plate It is a front view showing the basic procedure for attaching a decorative plate to the surface of
It is a front view which shows the state in the middle of assembling the outer side formwork or inner side formwork of a basement beam using a board|substrate, a center part reinforcement board, and an edge part reinforcement board.
5 : is a principal part cross-sectional view which shows the connection structure of the outer side forms in the part where the outer side forms orthogonally cross.
Fig. 6(a) is a perspective view of the substrate viewed from the front side, and Fig. 6(b) is a perspective view of the substrate viewed from the back side.
Fig. 7(a) is a perspective view of the central reinforcing plate seen from the front side, and (b) is a perspective view of the central reinforcing plate viewed from the back side.
Fig.8 (a) is the perspective view which looked at the edge part reinforcement board from the front side, (b) is the perspective view which looked at the edge part reinforcement board from the back surface side.
Fig. 9(a) is a perspective view of the decorative plate viewed from the front side, and Fig. 9(b) is a perspective view of the decorative plate viewed from the back side.
Fig. 10 is an enlarged cross-sectional view of section A of Fig. 13 showing a state in which a side wall of a storage tank buried underground is formed using the residual formwork for forming a concrete structure according to the second embodiment of the present invention.
Fig. 11 is a cross-sectional view taken along line BB of Fig. 13 .
It is a front view which shows the state in the middle of assembling the outer formwork of a storage tank using a board|substrate, a center part reinforcement board, and an edge part reinforcement board.
13 is a longitudinal sectional view of a storage facility including the storage tank.
14 is a state in which a decorative plate is attached to the side wall of the upper half of a storage tank installed so that the lower part is buried in the ground and the upper part protrudes from the ground using the residual mold for forming a concrete structure according to the third embodiment of the present invention. It is a front view of the side wall formwork shown.

Next, the form for implementing this invention is demonstrated based on drawing.

<First embodiment>

As shown in FIG. 1 , in this embodiment, the concrete side wall 11, which is a concrete structure, is a concrete underground beam that supports a foundation part or an underground part of a building, and the underground beam 11 is a hole dug in the ground. It is formed in a rectangular frame shape on the bottom plate 12 of a rectangular plate shape made of concrete laid on the bottom of the . The underground beam 11 is formed by the remaining formwork 13 remaining on the surface of the underground beam 11, that is, the outer surface and the inner surface of the underground beam 11. As shown in FIG. This remaining formwork 13 is an inner formwork 14 which forms the inner surface of the underground beam 11, the outer formwork 16 which forms the outer surface of the underground beam 11, the inner formwork 14, and an outer formwork A plurality of vertical reinforcing bars 17 are provided between (16) and arranged to hold the outer formwork (16) and the inner formwork (14).

The said outer formwork 16 and the inner formwork 14 are surface-symmetrically formed by the same component (FIG. 1). The outer formwork 16 and the inner formwork 14 are formed in a square plate shape by plastic and are made of a plurality of substrates 18 arranged in close contact vertically and horizontally, and a square plate shape of substantially the same size as the substrate 18, made of plastic. A plurality of central reinforcing plates 19 formed and arranged in close contact with each other vertically and horizontally by bonding four adjacent substrates 18, and a plurality of central reinforcing plates 19 formed in a rectangular plate shape by plastic and arranged in close contact with each other vertically and horizontally ) and has a plurality of end reinforcing plates 21 arranged in a rectangular frame shape by bonding adjacent substrates 18, respectively (Figs. 1 to 4). The board|substrate 18, the center part reinforcement board 19, and the edge part reinforcement board 21 are formed of polyolefin resin (polypropylene, polyethylene, etc.), a vinyl chloride resin, etc.

It is preferable that the board|substrate 18 is formed in the square plate shape whose one side is 20 cm - 80 cm, and thickness is 4 cm - 8 cm. Moreover, the board|substrate 18 has the board|substrate body 18a formed in the shape of a square plate, and when this board|substrate body 18a is partitioned into the shape of four square plates, the four board|substrate coupling holes respectively formed in the substantially center of these divided square boards. (18b) and four cylindrical ribs formed to protrude toward the central reinforcing plate 19 or the end reinforcing plate 21 among both surfaces of the substrate body 18a and enclosing the periphery of the four substrate engaging holes 18b, respectively ( 18c) and a square projecting formed on the opposite side to the side facing the central reinforcing plate 19 or the end reinforcing plate 21 among both surfaces of the substrate body 18a and extending along the outer peripheral edge of the substrate body 18a It has a frame-like projection 18d formed in the shape of a frame (FIGS. 1 and 6). Further, on the outer peripheral surface of the substrate 18, that is, on the outer surface of the frame-like projection 18d, for each side of the four sides, two rows in the thickness direction of the substrate 18 and four rows of concave portions 18e in the longitudinal direction of the substrate. and the convex portions 18f are respectively alternately formed in a checkerboard pattern (checkered pattern) (Fig. 6). The height of the cylindrical rib 18c is formed to be substantially the same as the thickness of the outer side leg part connecting plate 22 (FIG. 5) and the inner side leg part connecting plate (not shown) mentioned later.

And the several board|substrates 18 are closely_contact|adhered vertically and horizontally in the same vertical plane, and are lined up (FIG.2 - FIG.4). At this time, the concave portion 18e and the convex portion 18f formed on the outer surface of the frame-like projection 18d of the substrate 18 are the convex portion 18f formed on the outer surface of the frame-like projection 18d of the neighboring substrate 18 . ) and the concave portion 18e, respectively. Accordingly, it is possible to prevent the substrate 18 and the neighboring substrate 18 from moving in a plane in which they are in contact, that is, the substrate 18 and the neighboring substrate 18 are relatively relative in their length and thickness directions. It is designed to prevent movement. Further, the concave portion 18e and the convex portion 18f formed on the outer surface of the frame-like projection 18d of the substrate 18 are convex portions formed on the outer surface of the frame-like projection 18d of the upper or lower substrate 18 . The portion 18f and the concave portion 18e are interpolated and depressed, respectively. Also in this case, the said board|substrate 18 and the said upper or lower board|substrate 18 are prevented from moving in the surface in which they contact.

Reference numeral 18g in Figs. 1 and 6(b) denotes a horizontal reinforcing rib formed extending in the horizontal direction within the frame-like projection 18d, and the reference numeral 18h in Fig. 6(b) denotes a vertical direction within the frame-like projection 18d. It is a vertical reinforcing rib formed by extending to In this embodiment, the horizontal reinforcing rib 18g and the upper and lower two sides among the four sides of the frame-like projection 18d of the board|substrate 18 are spaced a predetermined space|interval, and the some latching hole 18i is formed. And, one end of the outer separator 24, which will be described later, is caught in the outer vertical reinforcing bar 17a of the vertical reinforcing bar 17, and the other end is caught in the engaging hole 18i of the substrate 18 forming the outer form 16, One end of the inner separator 26, which will be described later, is caught by the inner longitudinal reinforcing bar 17b of the longitudinal reinforcing bar 17, and the other end is caught in the hooking hole 18i of the substrate 18 forming the inner formwork 14 . Further, locking holes may be formed in the horizontal reinforcing rib and the vertical reinforcing rib, and locking holes may be formed in all four sides of the frame-like projection. In this case, the distinction between the upper, lower, left and right of the substrate is eliminated, and the construction operation of the substrate is facilitated.

The central reinforcing plate 19 is preferably formed in a square plate shape having a side of 20 cm to 80 cm and a thickness of 3 cm to 6 cm ( FIGS. 1 and 7 ). Further, the central reinforcing plate 19 includes a central reinforcing plate body 19a formed in a square plate shape, and four central coupling pins 19b protruding toward the substrate 18 among both surfaces of the central reinforcing plate body 19a and , and a square decorative plate accommodating recess 19c formed in the center of a surface opposite to the surface facing the substrate 18 among both surfaces of the central reinforcing plate main body 19a. Moreover, when the center part reinforcing plate main body 19a is partitioned into four square plate shape, the four center engaging pins 19b are respectively formed in the substantially center of these partitioned square plates. Accordingly, in a state in which the four substrates 18 adjacent vertically and horizontally are closely aligned ( FIG. 2 ), the central reinforcing plate 19 is located at the center of the four substrates 18 and the four substrates 18 ), by inserting the four center engaging pins of the central portion reinforcing plate 19 into the substrate engaging holes 18b of the four substrates respectively so as to overlap one corner of the four substrates 18, the center reinforcing plate 19 ) by (Fig. 2(b) and Fig. 3(a)). Here, the central coupling pin 19b is press-fitted or typed into the substrate coupling hole 18b, and is configured so as not to be easily removed by vibration or the like. In addition, reference numeral 19d in Fig. 7(b) denotes a weight reduction concave portion formed on the surface opposite to the substrate 18 among both surfaces of the central reinforcing plate main body 19a, and the reference symbol 19e denotes a weight reduction concave portion 19d vertically and horizontally. It is a reinforcing rib formed protruding. In addition, the code|symbol 19f in FIG.2(b), FIG.3, FIG.4, and FIG.7 is four through-holes for attaching the decorative plate 34. As shown in FIG. Further, on the outer peripheral surface of the central reinforcing plate 19, the checkered (checkered) concave and convex portions formed on the outer peripheral surface of the substrate 18, ie, the outer peripheral surface of the frame-like projection 18d, are not formed.

On the other hand, the end reinforcing plate 21 has a long side 1.5 times the length of the central reinforcing plate 19 and a short side 0.5 times the length of the central reinforcing plate 19 and has a thickness equal to that of the central reinforcing plate 19 . It is formed in the same rectangular plate shape (FIGS. 1, 3, 4 and 8). Further, the end reinforcing plate 21 includes an end reinforcing plate main body 21a formed in a rectangular plate shape, and three end engaging pins 21b protruding toward the substrate 18 among both surfaces of the end reinforcing plate main body 21a. (Fig. 1, Fig. 5 and Fig. 8(b)). Moreover, when the three end coupling pins 21b divide the edge part reinforcement plate main body 21a into the square plate shape which has the short side as one side, they are respectively formed in the substantially center of these divided square plates. Accordingly, in a state in which four substrates 18 are joined by one central reinforcing plate 19 , one end reinforcing plate 21 is positioned at the outer peripheral edge of one central reinforcing plate 19 . In order to do so, two end coupling pins 21b among the three end coupling pins 21b of the end reinforcement plate 21 are respectively inserted into the board coupling holes 18b of one substrate 18, and the other end By inserting the engaging pins 21b into the substrate engaging holes 18b of the neighboring substrates 18 of this substrate 18, one end reinforcing plate 21 is overlapped over the two substrates 18. It is configured to bond two substrates 18 (Fig. 3(a)). By repeating the same operation as above, the three end reinforcing plates are positioned at the outer periphery of one central reinforcing plate, and adjacent substrates are joined to form a square frame (Fig. 3(b)). In this embodiment, as shown in FIG. 4, the some edge part reinforcing plate 21 is located in the outer peripheral edge of the some center part reinforcing plate 19 which mutually closely_contact|adheres, and extends in the horizontal direction, and adjacent board|substrate 18 They are arranged in a rectangular frame by combining them. Here, the end coupling pin 21b is press-fitted or typed into the substrate coupling hole 18b, and is configured not to be easily removed by vibration or the like.

In addition, the code|symbol 21c in Fig.8 (a) is an engagement ridge protrudingly formed in one short side among a pair of short sides of the edge part reinforcement plate main body 21a, and the code|symbol 21d in Fig.8 (b) is an edge part reinforcement plate main body. It is a short-side engagement concave line formed concavely on the other short side among a pair of short sides of (21a). In addition, the code|symbol 21e in FIG. 8 is a long-side-side engagement recessed line formed in the both ends of a pair of long side of the edge part reinforcement plate main body 21a, respectively. When the engaging ridge 21c engages with the short-side engagement trough 21d or the long-side engagement trough 21e, the movement of the end reinforcing plates 21 and 21 in the thickness direction is prevented. it is made to be In addition, 21f in FIG.8(b) is a weight reduction recessed part formed in the surface which opposes the board|substrate 18 among both surfaces of the edge part reinforcement plate main body 21a, The code|symbol 21g in FIG.8(a) is an edge part reinforcement plate. It is a some weight reduction recessed part formed in the longitudinal direction in the surface on the opposite side to the surface which opposes the board|substrate 18 among both surfaces of the main body 21a.

On the other hand, the plurality of vertical reinforcing bars 17 are formed by holding the outer form 16 by the outer separator 24 and spaced apart from each other in the longitudinal direction of the outer form 16, a plurality of outer longitudinal reinforcing bars 17a, The inner formwork 14 is held by the inner separator 26, and it has a plurality of inner longitudinal reinforcing bars 17b formed standing up at intervals in the longitudinal direction of the inner formwork 14 (FIG. 1). The outer separator 24 and the inner separator 26 are formed in the same shape. By joining the plurality of outer vertical reinforcing bars 17a and the plurality of outer transverse reinforcing bars 27 in a lattice form by binding lines or welding, the outer grid reinforcing bars 28 are assembled, and the plurality of inner vertical reinforcing bars 17b are formed into a plurality of The inner lattice reinforcing bar 31 is assembled by assembling the inner transverse reinforcing bar 29 and the grid by binding lines or welding. Between the plurality of outer vertical reinforcing bars 17a and the plurality of inner vertical reinforcing bars 17b, that is, between the outer lattice reinforcing bars 28 and the lattice reinforcing bars 31, a plurality of reinforcing bars thinner than the vertical reinforcing bars 28 and 31 A temporary reinforcing bar assembly 32 is formed by intersecting longitudinally, horizontally and vertically with a binding line or welding. Then, the plurality of outer lattice reinforcing bars 28 are coupled to the outer surface of the temporary reinforcing bar assembly 32 by binding lines or welding, and the plurality of inner lattice reinforcing bars 31 are connected to the inner surface of the temporary reinforcing bar assembly 32 by binding lines or welding. By combining with the reinforcing bar assembly 33 is manufactured. The lower portion of this reinforcing bar assembly 33 is embedded in a concrete base 12 . In addition, the outer separator 24 and the inner separator 26 are preferably formed by bending a metal wire such as wire at the construction site, or formed by a metal rod such as carbon steel bent into a predetermined shape in advance.

Moreover, as shown in FIG. 5, the outer side formwork 16, 16 comrades which mutually collide at right angles are connected by the outer side leg part connecting plate 22 of a planar view substantially L-shape. One flat plate part 22a of this outer side leg part connecting plate 22 is inserted between the board|substrate 18 which comprises the edge part of the one outer side formwork 16, and the edge part reinforcement plate 21, The other flat plate part 22b is inserted between the board|substrate 18 which comprises the edge part of the other outer formwork 16, and the edge part reinforcement board 21. As shown in FIG. Moreover, the inner side forms 14 and 14 which mutually collide at right angles are connected by planar view, by the substantially L-shaped inner side part connecting plate (not shown). One flat plate part (not shown) of this inner side leg part connecting plate is inserted between the board|substrate 18 which comprises the edge part of the one inner side formwork 14, and the edge part reinforcement plate 21, and the other flat plate part ( (not shown) is inserted between the board|substrate 18 which comprises the edge part of the other inner formwork 14, and the edge part reinforcement board 21. As shown in FIG. Moreover, as shown in FIG.3(b), you may attach the plastic decorative board 34 to the surface of the center part reinforcement board 19. As shown in FIG. The decorative plate 34, in this embodiment, includes a decorative plate main body 34a formed in a substantially square plate shape, a pattern 34b protruding from the surface of the decorative plate main body 34a and composed of Mt. Fuji and the sun; It has four attachment pins 34c which are protruded from the back surface of the long plate main body 34a and are inserted into the four through-holes 19f of the central part reinforcing plate 19 (FIG.3(b) and FIG.9). This decorative plate 34 can improve the appearance of the underground beam 11 by attaching it to the surface of the central reinforcing plate 19 of the outer frame 16 when the underground beam 11 is exposed to the ground. it is meant to be Here, the attachment pin 34c is press-fitted or typed into the through hole 19f, and is configured so as not to be easily removed by vibration or the like. The said outer leg part connecting plate 22, the inner leg part connecting plate, and the decorative plate 34 are formed of polyolefin resin (polypropylene, polyethylene, etc.), a vinyl chloride resin, etc. Further, the thickness of the outer leg connecting plate 22 and the inner leg connecting plate is preferably formed to be about 1 cm to 2 cm, and the thickness of the decorative plate 34 is preferably formed to be about 0.4 cm to 1.2 cm.

The assembly procedure of the underground beam 11 comprised in this way is demonstrated. First, a hole having a wider bottom than the bottom plate 12 is dug in the ground, and the reinforcing bar assembly 33 is placed at the bottom of this hole in the shape of a square frame. Next, raw concrete is poured into the bottom of the hole to form a concrete square plate-shaped bottom plate 12 in the bottom of the hole. At this time, the lower portion of the reinforcing bar assembly 33 is buried in the bottom plate (12). Next, on the bottom board 12, the outer frame 16 is formed by joining the substrate 18, the central part reinforcing plate 19, and the end reinforcing plate 21 vertically and horizontally as shown in FIGS. The inner frame 14 is formed by joining the board|substrate 18, the center part reinforcing board 19, and the edge part reinforcing board 21 vertically and horizontally as shown in FIGS. Then, the outer formwork 16 is positioned outside the reinforcing bar assembly 33 at a predetermined interval, and one end of the outer separator 24 is hung on the outer transverse reinforcing bar 27 of the outer lattice reinforcing bar 28, and the outer separator The other end of the 24 is hooked to the locking hole 18i of the substrate 18 of the outer frame 16 (FIG. 1). As a result, the outer formwork 16 is held by the plurality of outer vertical reinforcing bars 17a via the plurality of outer separators 24 and the plurality of outer transverse reinforcing bars 27 . Further, the inner frame 14 is positioned inside the reinforcing bar assembly 33 at a predetermined interval, and one end of the inner separator 26 is hung on the inner transverse reinforcing bar 29 of the inner lattice reinforcing bar 31, and the inner separator The other end of (26) is fastened to the locking hole (18i) of the substrate (18) of the inner frame (14). Thereby, the inner formwork 14 is hold|maintained by the some inner side vertical reinforcing bar 17b via the some inner side separator 26 and the some inner side transverse reinforcing bar 29.

Next, as shown in Fig. 5, the outer molds 16 and 16 colliding with each other at right angles are connected by the outer corner part connecting plate 22, and the inner molds 14 and 14 colliding with each other at right angles are connected to each other. It is connected by the connecting plate of each inner part. In the remaining formwork 13 assembled in this way, compared to the case of forming the outer formwork and the inner formwork using a rash net and veneer board, the assembly operation of the outer formwork 16 and the inner formwork 14 can be significantly shortened. can That is, the outer formwork 16 and the inner formwork 14 which have independence and are strong can be assembled easily. Furthermore, green concrete is poured and hardened between the inner formwork 14 and the outer formwork 16 to form the underground beam 11 (FIG. 1). At this time, even when a large amount of raw concrete is poured between the inner formwork 14 and the outer formwork 16 at one time, the outer vertical reinforcing bars 17a hold the outer formwork 16 through the outer separator 24, , since the inner longitudinal reinforcing bar 17b holds the inner formwork 14 via the inner separator 26, the outer formwork 16 and the inner formwork 14 are not deformed, and the concrete underground beam 11 having a predetermined shape ) can be formed. Moreover, since the board|substrate 18, the center part reinforcing plate 19, and the edge part reinforcement board 21 were formed of plastic, the board|substrate 18 which comprises the outer formwork 16 and the inner formwork 14, the center part reinforcing plate ( 19) and the end reinforcing plate 21 can be easily manufactured. In addition, when the substrate 18, the central portion reinforcing plate 19, and the end reinforcing plate 21 are formed using waste plastic, the substrate 18 constituting the outer formwork 16 and the inner formwork 14, and the central portion reinforcement The plate 19 and the end reinforcing plate 21 can be manufactured inexpensively.

<Second embodiment>

10 to 13 show a second embodiment of the present invention. 10-13, the same code|symbol as FIG. 1-8 shows the same component. In this embodiment, the side wall 51 is a rectangular cylindrical side wall made of concrete formed by surrounding the rectangular storage complex 55 on the bottom plate 52 to form the storage tank 50, and this side wall 51 The outer surface of is formed by the outer form (56) of the remaining form (53). The bottom plate 52 is laid on the bottom of the hole 59 dug in the ground. The side wall 51 is formed in the shape of a square frame by the above-mentioned outer formwork 56, the inner formwork 54, and the remaining formwork 53 having a plurality of vertical reinforcing bars 57. As shown in FIG. The storage complex 55, as shown in Figs. 10 and 11, is constituted by arranging a plurality of square plate-shaped partition plates 58 in a horizontal plane and connecting them to each other. , a plurality of normal spacers 66 connected to either or both of the lower surface or upper surface of the plurality of partition plates 58, and a partition plate 58 and a spacer 66 on the outermost side of the storage complex 55. It has the outermost layer part 67 formed by arrange|positioning alternately in the vertical direction. In addition, at least one cylindrical rib 58a, 58b is protruded from the lower surface of the partition plate 58, and at least one cylindrical rib 58c, 58d is protruded from the upper surface. Moreover, the normal spacer 66 is fitted and connected to either one or both of the lower surface or upper surface of the partition plate 58 with the cylindrical ribs 58a-58d.

In this embodiment, two small-diameter first cylindrical ribs 58a and two large-diameter second cylindrical ribs 58b are concentrically formed on the lower surface of the partition plate 58, and the partition plate 58 ), two small-diameter third cylindrical ribs 58c and large-diameter fourth cylindrical ribs 58d are concentrically formed on the upper surface (FIG. 10). The diameter of the first cylindrical rib 58a and the diameter of the third cylindrical rib 58c are formed to be the same, and the diameter of the second cylindrical rib 58b and the diameter of the fourth cylindrical rib 58d are formed to be the same. Moreover, in the center of the partition plate 58, the insertion hole 58e which can insert the spindle pipe 68 mentioned later is formed (FIG. 10 and FIG. 11). Reference numeral 58f in FIG. 11 denotes a plurality of flow holes formed in the partition plate 58 and through which the rainwater 70 ( FIG. 13 ) can pass. Further, although not shown, engaging holes are formed in each of the four corners of the partition plate 58, and in these engaging holes, the first engaging projections of the square plate-shaped first engaging piece 71 are provided. (71a) or the second engaging projection (not shown) of the rectangular plate-shaped second engaging piece (not shown) is configured to be engageable. That is, the plurality of partition plates 58 positioned in the same horizontal plane are coupled by the first coupling piece 71 or the second coupling piece. Specifically, the respective corner portions of the four partition plates 58 adjacent in the same horizontal plane are coupled to each other by the first engaging piece 71, and the two partition plates adjacent to each other are positioned at the outermost side in the same horizontal plane. Each corner portion of the plate 58 is joined to each other by a second engaging piece. Further, the partition plate 58, the first bonding piece 71 and the second bonding piece are made of a polyolefin resin (polypropylene, polyethylene, etc.), a vinyl chloride resin, or the like, and have a square plate shape with a side of about 20 cm to 40 cm. It is preferable to form

The spacer 66, in this embodiment, is formed in a cylindrical shape, the upper end is fitted with the large-diameter second cylindrical rib 58b of the partition plate 58, and the lower end thereof is the large-diameter of the partition plate 58. It is configured to fit into the fourth cylindrical portion 58d of (FIG. 10). Moreover, on the outer peripheral surface of the spacer 66, the some flow hole 66a through which the rainwater 70 (FIG. 13) can pass is formed. The spacer 66 is preferably made of plastic of the same material as that of the partition plate 58 .

On the other hand, on the outer peripheral surface of the partition plate 58, for each side of the four sides, two rows in the thickness direction of the partition plate 58 and four rows in the longitudinal direction of the partition plate 58 concave portions 58g and convex portions ( 58h) are respectively alternately formed in a checkerboard pattern (checkered pattern) (Fig. 11). Further, horizontal coupling bodies 61 to 64 are constituted by arranging and connecting a plurality of partition plates 58 in the same horizontal plane. At this time, the concave portion 58g and the convex portion 58h of the partition plate 58 are inserted and retracted from the convex portion 58h and the concave portion 58g of the neighboring partition plate 58, respectively. Accordingly, the partition plate 58 and the neighboring partition plate 58 can be prevented from moving in the plane in which they are in contact.

The horizontal coupling bodies 61 to 64 are formed in four stages in this embodiment, and the first horizontal coupling body 61 at the lowermost stage, the second horizontal coupling body 62 at the second stage from the bottom, and from below It consists of the 3rd horizontal coupling body 63 of a 3rd level, and the horizontal coupling body 64 of the 4th level (topmost) from below (FIG. 13). The first, third and fourth horizontal connecting bodies 61, 63 and 64 are formed in a square plate shape, and the second horizontal connecting body 62 is formed in a square frame shape. In addition, in this embodiment, the outermost layer part 67 is formed at the outermost side of the storage complex 55, and the inner side outer layer part 69 is formed adjacent to the inner side of this outermost layer part 67. As shown in FIG. The outermost layer portion 67 and the inner outer layer portion 69 are constituted by alternately arranging a partition plate 58 and a spacer 66 in the vertical direction. That is, the outermost layer portion 67 and the inner outer layer portion 69 are the partition plate 58 constituting the lowermost first horizontal connecting body 61 and the partition forming the uppermost fourth horizontal connecting body 64 . In addition to the partition plate 58 and the spacer 66 stacked in the vertical direction between the plates 58, the partition plate 58 constituting the first horizontal connector 61 and the uppermost fourth horizontal connector ( 64) and a partition plate 58 constituting it. And the partition plate 58 on the inner side from the inner outer layer part 69 is arrange|positioned by one step in the vertical direction. Accordingly, in the second horizontal connecting body 62 , the partition plate 58 is not disposed inside the inner outer layer portion 69 , but the partition plate constituting the outermost layer portion 67 and the inner outer layer portion 69 . It is formed in the shape of a quadrangular frame which consists only of (58).

On the other hand, the inner formwork 54 of the remaining formwork 53 is formed in a square cylinder by arrange|positioning the some inner side plate 54a, and the outer formwork 56 is the same as the outer formwork of 1st Embodiment. is formed In addition, the vertical reinforcing bar 57 constitutes the outermost layer portion 67 and is located outside the inner frame 54 in each partition plate 58 of the first to fourth horizontal connecting bodies 61 to 64. It has an outer longitudinal reinforcing bar 57a that is inserted through a through hole (not shown) formed in the partition plate 58 . In addition, one end of the outer separator 24 is hooked on the outer transverse reinforcing bars 27 that form the outer lattice reinforcing bars 28 together with the outer vertical reinforcing bars 57a, and the other end is caught by the substrate 18 of the outer frame 56 . By hooking into the hole 18i, the outer formwork 56 is held by the outer longitudinal reinforcing bar 57a via the outer separator 24 and the outer transverse reinforcing bar 27. As shown in FIG. The inner frame (54) constitutes the outermost layer portion (67) and is an outermost layer portion (67) for each stage of the first to fourth horizontal connecting bodies (61 to 64) arranged and disposed at intervals in the vertical direction. Among the plurality of spacers 66 constituting the , the outer surface of the plurality of spacers 66 constituting the outermost layer portion 67 is in contact with the portion forming the outer surface, that is, in a state of surrounding all of the plurality of spacers 66 constituting the outermost layer portion 67. It is formed into a square cylinder by arrange|positioning the inner side plate 54a so that it may line-contact (FIG. 10 and FIG. 11). The inner plate 54a is preferably made of a plastic corrugated cardboard made of polypropylene, which is relatively lightweight and has a relatively high strength, and the inner plates 54a adjacent to each other are arranged so that a part of them overlaps (FIG. 11). Here, a plurality of auxiliary receiving members 72 receiving the inner formwork 54 together with the spacers 66 constituting the outermost layer portion 67 circulate the partition plate 58 constituting the outermost layer portion 67 . It is preferable to be inserted through the ball 58f. It is preferable that this auxiliary receiving member 72 is formed by the pipe|tube made from vinyl chloride. In addition, in this embodiment, although the inner longitudinal reinforcing bar, the inner transverse reinforcing bar, the inner lattice reinforcing bar, the inner separator, the temporary reinforcing bar assembly, and the reinforcing bar assembly of the first embodiment are not used, a grid-like reinforcement formed by welding longitudinally and transversely extending reinforcing bars The outer circumferential surface of the storage composite 55 and the outer grid reinforcing bars 28 (the plurality of outer longitudinal reinforcing bars 57a and the plurality of outer transverse reinforcing bars 27) are covered with a reinforcing bar (not shown) for use.

In addition, the code|symbol 19g in FIG. 12 is four cut-out-shaped recessed parts respectively formed in the four corners of the surface opposite to the surface opposite to the board|substrate 18 among both surfaces of the central part reinforcing plate main body 19 of the outer side formwork 56. . Reinforcing plate connection holes 19h are respectively formed in the center of these cut-out recesses 19g. Then, when the four central reinforcing plates 19 are vertically and horizontally closely aligned, four cut-out recesses 19g are combined in the center of these central reinforcing plates 19 to form a square plate-shaped connecting plate (not shown). A connecting plate accommodating recess 19i capable of accommodating ) is formed. Four reinforcing plate connecting pins (not shown) are protrudingly formed on the back surface of the connecting plate, and by inserting these reinforcing plate connecting pins into the reinforcing plate connecting holes 19h of the four central reinforcing plates 19, respectively, Four central reinforcing plates (19) are connected. Here, the reinforcing plate connecting pin is press-fitted or typed into the reinforcing plate connecting hole 19h, and is configured not to be easily removed by vibration or the like.

On the other hand, a main shaft pipe 68 extending in the vertical direction is formed passing through the partition plate 58 and the spacer 66 constituting the outermost layer portion 67 and the inner outer layer portion 69 (Figs. 10 and Figs. 11). In addition, a plurality of elongated holes 68a extending in the longitudinal direction of the main shaft pipe 68 at predetermined intervals are formed on the outer peripheral surface of the main shaft pipe 68 to prevent the occurrence of air stagnation (FIG. 10). In addition, the main shaft pipe 68 is extended from the bottom surface to the upper surface of the storage tank 50, and is formed (FIG. 10 and FIG. 11). Further, when the storage tank is relatively small and only relatively small strength is required, the main shaft pipe may be omitted.

Located inside the inner outer layer portion 69 and among the first to fourth horizontal connecting bodies 61 to 64, the first horizontal connecting body 61 at the lowest stage and the third horizontal connecting body 63 at the third level from the bottom are provided. The partition plate 58 constituting it is connected by a long spacer 73 formed longer than the spacer 66 and extending in the vertical direction and a connecting adapter 74 ( FIGS. 11 and 13 ). In addition, the connecting adapter 74 includes a binding member 75 for binding the four partition plates 58 to one on the same plane, and a funnel-shaped funnel for connecting the binding member 75 and the elongated spacer 73 . a member 76 . A square plate-shaped bottom plate 77 is thoroughly laid on the lower surface of the first horizontal connector 61 at the lowermost stage, and a square plate-shaped top plate 78 is covered on the upper surface of the fourth horizontal connector 64 at the uppermost stage (Fig. 13). Further, the upper surface of the top plate 78 is covered with a water-repellent sheet 79 . Thereby, the intrusion of sewage water into the water storage tank 50 is prevented.

On the other hand, the tip of the rainwater introduction pipe 81 is inserted into the storage tank 50 (FIG. 13). The proximal end of this rainwater inlet pipe 81 is connected to a dust control management tube 82 buried in the ground at a position higher than the storage tank 50 , and this vibration control management tube 82 connects the rainwater inlet pipe 83 . It is connected to the side groove 84 of a cross section substantially U-shape through it. The vibration control management tube 82 includes a first tube 91 having an upper side connected to a side groove 84 via a rainwater inlet pipe 83, and a second tube formed adjacent to the first tube 91 ( 92). In the center of the first cylinder 91 in the vertical direction, an intermediate bottom wall 91a inclined in a direction in which the upper surface is gradually lowered is formed. In addition, in the center of the bottom of the first cylinder 91, an upright pipe 91b is formed by penetrating the middle and bottom wall 91a, and the upper end of the upright tube 91b is substantially the same as the upper surface of the middle and bottom wall 91a. inclined in the direction. In addition, the base end of the rainwater introduction pipe 81 is connected to the lower side surface of the upright pipe 91b. On the other hand, on the side surface where the first tube 91 and the second tube 92 are in contact with each other, a relatively small outflow that induces a small amount of rainwater flowing down on the middle and bottom wall 91a into the second tube 92 when a drizzle comes. A hole 91c and an inlet hole 92a are formed, respectively.

The assembly procedure of the storage tank 50 comprised in this way is demonstrated. First, a hole 59 having a wider bottom than the bottom plate 52 is dug in the ground, and the bottom plate 52 made of concrete is laid in the bottom of this hole 59 (FIG. 13). Next, a plurality of square plate-shaped partition plates 58, a normal spacer 66, a first engagement piece 71, a second engagement piece, a spindle pipe 68, etc. are prepared, and on the bottom plate 52 A storage complex (55) is constructed, and the storage complex (55) is accommodated in the hole (59). At this time, the outermost layer 67 of the storage complex 55 is first built on the bottom plate 52, and then the inside of the storage complex 55 is built, but the construction of the inside of the storage complex 55 Simultaneously, the remaining formwork 53 is constructed.

The construction procedure of the remaining formwork will be described with reference to FIG. 10 . First, the auxiliary receiving member 72 is inserted through the circulation hole 58f along the outer surface of the outermost layer portion 67 of the partition plate 58 constituting the outermost layer portion 67 . Next, among the plurality of spacers 66 constituting the outermost layer portion 67 for each step between the four-stage partition plates 58 , a plurality of inner plates are brought into contact with a portion forming the outer surface of the outermost layer portion 67 . By arranging the 54a, the three-stage inner formwork 54 is formed into a rectangular cylinder, respectively. Then, a plurality of outer vertical reinforcing bars 57a are provided in the perforations along the outer surface of the outermost layer portion 67 of the plurality of stages of partition plates 58 that constitute the outermost layer portion 67 and are spaced apart in the vertical direction. After extending and passing in the vertical direction so as to be located outside the inner plate 54a of the, the outer transverse reinforcing bar 27 extending in the horizontal direction intersects the outer longitudinal reinforcing bar 57a, and the intersection is formed by a binding line (not shown) not) to form an outer lattice reinforcing bar 28 . Next, after arranging and forming a water-expandable water-repellent material (not shown) on the bottom plate 52 between the inner formwork 54 and the outer formwork 56, the grid-like reinforcing bars (not shown) The outer circumferential surface of the storage composite 55 and the outer lattice reinforcing bars 28 (the plurality of outer longitudinal reinforcing bars 57a and the plurality of outer transverse reinforcing bars 27) are covered.

Then, on the bottom plate 52, the substrates 18 of the first and second stages of the outer formwork 56 are assembled, and these substrates 18 are joined by the central reinforcing plate 19, and in close contact with the horizontal direction. Positioning a plurality of end reinforcing plates 21 on the lower edge and both side edges of the plurality of central reinforcing plates 19 arranged and also joining adjacent substrates 18 by these end reinforcing plates 21, and at right angles to each other By connecting the colliding outer molds 56 and 56 with the outer corner part connecting plate 22, the outer mold 56 is formed in a rectangular frame shape with a predetermined distance from the outer vertical reinforcing bar 57a (Fig. 11). . At this time, the reinforcing bar for reinforcement is located between the outer side vertical reinforcing bar 57a and the outer side formwork 56. As shown in FIG. Next, one end of the outer separator 24 is hooked on the outer transverse reinforcing bar 27, the other end is hooked on the latching hole 18i of the first-stage substrate 18, and one end of the other outer separator 24 is hooked onto the outer transverse reinforcing bar ( 27), and the other end is hooked on the locking hole 18i of the second-stage substrate 18 (FIG. 10).

Further, on the second-stage substrate 18, the third-stage substrates 18 are stacked, these substrates 18 are bonded by a central reinforcing plate 19, and a plurality of central portions are reinforced in close contact with each other in the horizontal direction. A plurality of end reinforcing plates 21 are placed on the upper edge and both sides of the plate 19, and adjacent substrates 18 are joined by these end reinforcing plates 21, and an outer formwork striking each other at right angles ( 56 and 56) are connected to each other with the outer corner part connecting plate (22). Then, one end of the outer separator 24 is hooked on the outer transverse reinforcing bar 27 , and the other end is hooked on the locking hole 18i of the third-stage substrate 18 . Thereby, the outer formwork 56 which has independence and is strong can be assembled easily. As a result, as compared with the case where a ratchet net or a brick is used as an outer formwork, the assembly operation|work of the outer formwork 56 can be shortened significantly.

Thereafter, green concrete is poured and hardened between the inner formwork 54 and the outer formwork 56 to form the side wall 51 ( Figs. 10 , 11 and 13 ). At this time, since the auxiliary receiving member 72 receives the inner formwork 54 together with the plurality of spacers 66 constituting the outermost layer portion 67, the pressure of the green concrete acting on the inner formwork 54 is reduced by the spacer. (66) and an auxiliary receiving member (72) receive. As a result, the deformation|transformation of the storage composite_body|complex 55 at the time of pouring raw concrete between the inner formwork 54 and the outer formwork 56 can be prevented reliably. In addition, even when a large amount of raw concrete is poured between the inner formwork 54 and the outer formwork 56 at one time, the outer vertical reinforcing bars 57a hold the outer formwork 56 through the outer separator 24, Since the auxiliary receiving member 72 receives the inner frame 54 together with the plurality of spacers 66 constituting the outermost layer portion 67, the outer form 56 and the inner form 54 do not deform, A concrete side wall 51 of a shape can be formed. Operations and effects other than the above are substantially the same as the operations and effects of the first embodiment, and thus repeated description is omitted.

<Third embodiment>

14 shows a third embodiment of the present invention. In Fig. 14, the same reference numerals as in Figs. 1 to 9 denote the same components. In this embodiment, it is installed so that a hole may be shallowly dug, a bottom board is laid in the bottom of this hole, the lower part of a storage tank is buried in the ground, and the upper part may protrude into the ground. And the decorative board 34 is attached to the surface of the central part reinforcement board 19 of the outer side frame 106 of the residual|survival type|mold 103 which forms the side wall of the storage tank which protruded from the ground. On the surface of this decorative plate 34, the pattern 34b which consists of Mt. Fuji and the sun is formed to protrude. Except for the above, it is comprised similarly to 2nd Embodiment.

In the residual formwork 103 of the storage tank configured in this way, a decorative plate 34 having a pattern 34b formed of Mt. Fuji and the sun protruding from the surface of the central reinforcing plate 19 protruding from the ground is attached. It is possible to improve the appearance of the surface of the protruding part. Operations and effects other than the above are substantially the same as those of the second embodiment, and thus repeated description is omitted.

Moreover, in the said 1st Embodiment, although the underground beam of a square frame was erected and formed on the bottom board of the square plate shape made from concrete laid at the bottom of the hole dug in the ground, the base board shape of a triangular plate shape, a pentagonal plate shape, or other polygonal shape In this case, a triangular frame shape, a pentagonal frame shape, or other polygonal frame shape, or a straight underground beam may be erected. Further, in the first and third embodiments, a pattern consisting of Mt. Fuji and the sun is protrudingly formed on the surface of the decorative plate, but a pigeon, cherry blossoms, a manufacturer's logo mark or other patterns are projected or recessed on the surface of the decorative plate. may be formed. Moreover, in the said 2nd Embodiment, a bottom board is laid in the bottom of a hole, all the storage tanks are buried underground, In the said 3rd embodiment, a hole is dug shallow and a bottom board is laid in the bottom of this hole, and the lower part of the storage tank is buried in the ground and installed so that the upper part protrudes from the ground, but the bottom plate may be laid on the ground and the entire storage tank may be installed on the ground. In this case, if the decorative plate is attached to the surface of the central reinforcing plate of the outer frame, the appearance of the surface of the storage tank can be improved.

Further, in the second embodiment, the horizontal coupling body is formed in three stages, however, the horizontal coupling body may be formed in two stages or four or more stages. Further, in the second embodiment, the inner partition plate is disposed one step vertically from the inner outer layer portion. However, when the earth pressure from the upper surface of the storage tank is relatively small, the inner outer layer portion may be made unnecessary, that is, the outermost layer. You may arrange|position the partition board inside from a part with one stage floating in the vertical direction. Further, in the second embodiment, after laying the concrete base, the concrete side wall is formed on the base plate. However, the concrete base and the side wall may be formed at the same time. Specifically, reinforcing bars welded in a grid shape are molded into a bowl shape to produce bowl-shaped reinforcing bars, and a plurality of bowl-shaped rebars are arranged at the bottom of the hole in an upside-down state, and one of the storage complexes is placed on them. By assembling the horizontal connecting body of the first stage and the outermost layer, in the state where the side wall forming member is assembled to surround the plurality of bowl-shaped reinforcing bars, the part that becomes the bottom plate (the part including the plurality of bowl-shaped reinforcing bars arranged at the bottom of the hole) and By pouring raw concrete from a plurality of points into a portion (inside of the side wall forming member) serving as the side wall, the concrete base and the side wall may be formed simultaneously.

11: Underground beam (side wall)
12, 52: low level
13, 53, 103: Residual mold
14: inner frame
16, 56, 106: outer frame
17, 57: vertical reinforcing bar
18: substrate
19: central reinforcing plate
21: end reinforcement plate
34: makeup plate
34b: shape
50: reservoir
51: side wall
55: storage complex

Claims (4)

A residual formwork that is formed to form a concrete structure consisting of a sidewall made of concrete, which is erected on the bottom of a hole dug in the ground or on a base made of concrete laid on the ground, and remaining on the surface of the sidewall. ,
An inner frame forming an inner surface of the side wall, an outer form forming an outer surface of the side wall, and disposed between the inner form and the outer form and holding the outer form or the outer form and the inner form Provided with a plurality of vertical reinforcing bars,
The outer mold or the outer mold and the inner mold are formed in a square plate shape by plastic, and a plurality of substrates arranged in close contact with each other vertically and horizontally; A plurality of central reinforcing plates arranged in close contact with each other vertically and horizontally, and a plurality of central reinforcing plates formed in a rectangular plate shape by plastic and positioned at the outer periphery of the plurality of central reinforcing plates arranged in close contact with each other vertically and horizontally and by combining adjacent substrates A residual formwork for forming a concrete structure, comprising a plurality of end reinforcing plates arranged in a rectangular frame shape. The method of claim 1,
A remaining formwork for forming a concrete structure, wherein a plastic decorative plate is respectively attached to the surface of the plurality of central reinforcing plates, and a shape is formed protruding or concave on the surface of the decorative plate. 3. The method according to claim 1 or 2,
The side wall is a concrete underground beam that is buried in the ground to support a building and is formed on the base, the outer surface of the underground beam is formed by the outer formwork, and the inner surface of the underground beam is formed by the inner formwork The remaining formwork for forming a concrete structure to be formed. 3. The method according to claim 1 or 2,
The side wall is a rectangular normal side wall made of concrete formed by enclosing the rectangular storage complex on the bottom plate to form a storage tank, and the outer surface of the side wall is formed by the outer mold, Residual mold for forming a concrete structure .

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