JP3228716B2 - Precast concrete plate and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a precast concrete plate and a method for producing the same.

[0002]

2. Description of the Related Art Retaining walls for protecting slopes and the like have been constructed from cast-in-place concrete or precast concrete plates as appropriate.

[0003]

However, the cast-in-place concrete or precast concrete plate of the retaining wall as described above is in a state in which the surface of the concrete itself is exposed without any decoration on the surface, and naturally, Was not harmonized at all.

The present invention has been made in view of these problems, and an object of the present invention is to manufacture a precast concrete plate in harmony with nature when constructing a retaining wall, and to simplify such a precast concrete plate. To provide a manufacturing method.

[0005]

The precast concrete plate of the present invention for solving the above problems has a flat hexagonal shape.
A natural stone slab with a rough shape and a rough surface is applied to the appropriate joint width.
First decorative unit formed by combining a plurality of decorative units
And the first decoration unit is rotated 180 degrees around the horizontal axis.
The second decorative unit and the first decorative unit,
A third decoration unit rotated 180 degrees about the vertical axis,
The third decoration unit is rotated 180 degrees about the horizontal axis.
And the fourth decorative unit are respectively formed, and the first decorative unit is formed.
The decoration unit and the second decoration unit are vertically and horizontally at the appropriate joint width.
A first combination part alternately combined with the third decoration
The unit and the 4th decorative unit are crossed vertically and horizontally with an appropriate joint width.
Alternately combined with the second combination part combined with each other
And the semi-end formed at the end, the four sets of decorative units
Characterized in that any one of them is incorporated . Also, the manufacturing method of precast concrete board is
A first decorative unit is formed by combining a plurality of natural hexagonal flat slabs having a rough peripheral surface with an appropriate joint width, and rotating the first decorative unit by 180 degrees around a horizontal axis. The second decorative unit and the first decorative unit
The third unit in which the decoration unit is rotated 180 degrees about the vertical axis.
A decorative unit and a fourth decorative unit in which the third decorative unit is rotated by 180 degrees about a horizontal axis, respectively, and the first decorative unit and the second decorative unit are alternately arranged vertically and horizontally with an appropriate joint width. A first combination part, and a second combination part in which the third decoration unit and the fourth decoration unit are alternately and vertically and horizontally combined with an appropriate joint width are alternately combined and installed in a mold. A part of one of the four sets of decorative units is incorporated into a half end formed at an end of the formwork.

[0006] When a retaining wall is constructed of a precast concrete plate having a turtle pattern formed of a natural stone plate, the retaining wall becomes like a stone wall constructed by stacking natural stones. Further, the deterioration of the turtle pattern formed by using a natural stone slab due to natural phenomena can be minimized.

[0007] By combining decorative units made of natural stone slabs, a turtle pattern can be easily formed on the surface of the precast concrete slab, and a part of the decorative unit is attached to a half of the end of the precast concrete slab. Can be incorporated.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a precast concrete plate and a method of constructing the same according to the present invention will be described below with reference to the drawings. 1 is a plan view of a precast concrete plate, (1) of FIG. 2 is a sectional view taken along line aa of FIG. 1, (2) is a sectional view of a natural stone plate, and FIG. 3 is bb of FIG. It is a line sectional view.

FIG. 1 shows a precast concrete plate 1, in which a natural stone plate (hereinafter simply referred to as “stone plate”) 3 is formed on the surface of a flat rectangular concrete plate 2, and a back surface of the concrete plate 2 is formed. A part of the truss bars 5 is projected.

The pattern 4 on the surface of the precast concrete plate 1 is formed by attaching a flat hexagonal stone plate 3 having a rough peripheral surface to the concrete plate 2 with an irregular joint width 6.

The stone plate 3 is formed to have an appropriate thickness, and as shown in FIG. 2 (2), the front side is formed as a natural stone as it is, and the back side is formed as a smooth shape.
Further, a lower part of the stone slab 3 and an anchor metal member 7 on the lower surface are buried in the concrete slab 2.

The truss bars 5 embedded in the back surface of the concrete plate 2 are triangular trusses in which one upper bar 8 and two lower bars 9 arranged in a triangular shape are joined by a corrugated lattice bar 11. . The lower reinforcement 9 is buried in the concrete plate 2 and is joined to the reinforcement 12, but the upper part of the truss 5 protrudes from the upper surface of the concrete plate 2.

The precast concrete board 1 having the stone board 3 embedded in the surface as described above is used, for example, when constructing a retaining wall for protecting a slope or a wall surface of a building.

Hereinafter, a method for manufacturing the precast concrete plate 1 will be described with reference to FIGS.

First, a stone plate 3 for forming a turtle pattern 4
To form This is, as shown in FIG.
(1) (a) and (2) (f)
And (3) of (3) are manufactured respectively. Then, these basic types of slabs (a), (f), and (sa) are rotated by 180 degrees about the horizontal axis X or the vertical axis Y, respectively, to obtain (a), (c), (g), and (c). ), (S) and (S) are manufactured respectively, and the (C), (C), and (S) stone plates are rotated 180 degrees around the horizontal axis X (D).
(Q) and (c) are manufactured respectively. As described above, the first basic type stone plate 3A composed of the stone plates (a), (c), and (d) centered on the stone plate (a), the stone plate (f) centered on the stone plate (f), and (g) (H), the second basic type of stone slab 3B made of the slab of (q) and the slab of (sa) as the center (s),
A total of 12 slabs (a) to (c) each including the third basic type slab 3C made of the (s) and (c) slabs are manufactured.

[0016] These twelve stone plates (A)
By combining (C) with irregular joint widths 6, four sets of decorative units A, B, C, and D as shown in FIG. 5 are formed.

The four decorative units A, B, C, D
Among them, the first decorative unit A is a stone plate 3A of the first basic type.
(C), the (f) stone plate in the second basic type stone plate 3B, and the (s) stone plate in the third basic type stone plate 3C with irregular joint widths. In addition, the second decorative unit B includes the stone plate (d) in the first basic type stone plate 3A, the stone plate (g) in the second basic type stone plate 3B, and the (se) in the third basic type stone plate 3C.
Are combined with irregular joint widths. In addition, the third decorative unit C is a stone plate (a) in the first basic type stone plate 3A and a (q) in the second basic type stone plate 3B.
And the stone plate (c) in the third basic type stone plate 3C at irregular joint widths. Furthermore, the fourth decorative unit is the first basic type stone plate 3A (A)
Is a combination of the stone slab of (c) in the second basic type slab 3B and the (s) slab in the third basic type slab 3C with irregular joint widths.

The second decorative unit B and the third decorative unit C are obtained by rotating the first decorative unit A by 180 degrees about the horizontal axis X or the vertical axis Y, respectively. The fourth decoration unit D is obtained by rotating the third decoration unit C by 180 degrees about the horizontal axis X.

FIG. 6 shows a stone slab 3 to be incorporated into a half of the end of the precast concrete slab 1.

FIG. 6 (1) shows a U / 4 stone plate obtained by dividing the U stone plate in the first basic type stone plate 3A into four, and an A / 2 stone plate obtained by dividing the U stone plate into two in the horizontal or vertical direction. . Also, (2) in the figure shows a mosquito slab in which the moss slab in the second basic type slab 3B is divided in two in the horizontal direction, and a slab in which the moss slab is divided in the vertical direction into two. , And small slabs and small slabs, which are obtained by cutting a part of the slabs of the slab and the slab, respectively, are shown. Also, (3) in the figure shows a sa / 2 slab in which the slab of the third basic type slab 3C is divided into two in the vertical direction, and a s / 2 in which the slab is divided into two in the horizontal or vertical direction. Are shown. Further, (4) of the same figure shows large stones and large stones, respectively, in which the stone stones A and D in the first basic type stone plate 3A are slightly larger.

The turtle pattern 4 on the surface of the precast concrete plate 1 corresponds to the above four sets of decorative units A, B,
C and D and the odd stone plate 3 shown in FIG. 6 are manufactured in combination with each other, and the method of combination will be described below.

First, a flat rectangular form 1 having a predetermined size
3 is assembled and formed at a predetermined location. Then, as shown in FIG. 7, a first combination unit 10 in which the first decoration units A and the second decoration units B are alternately combined with irregular joint widths at the upper end on the bottom surface in the formwork 13 is provided. Form.

Since this is a half-end portion formed at the upper end of the precast concrete plate, a stone plate of c 4 is provided at the left end.
The lower right divided c / 4 stone plate [(c) in (1) of FIG.
4)], and the lower part of the moss slab divided in two in the horizontal direction
A first decorative unit A including a second stone plate [(f) in FIG. 6 (2)] is installed. The first decorative unit A
Next to, the stone slab is divided into two parts in the horizontal direction.
A second decorative unit B having a second stone plate [(3/2) in FIG. 6 (3)] is installed. In addition, between these second decorative units B, the lower part of the cue slab is divided in two in the horizontal direction.
C / 2 slab [(C / 2) in FIG. 6 (1)] and a lower mosquito slab where the moss slab is divided in two in the horizontal direction [(C) in FIG. 6 (2)) Is installed. Further, at the right end, only the lower left / U / 4 stone plate [(U / 4) in (1) of FIG. 6) in which the U stone plate of the first decorative unit A is divided into four is installed.

Next, as shown in FIG. 8, adjacent to the first combination section 10, a second combination section in which the third decoration unit C and the fourth decoration unit D are combined alternately with right and left at irregular joint widths. 20 are formed in two upper and lower stages.

At the upper left end portion of the second combination section 20, a right ケ / 2 slab [(q) in FIG. 6 (2)] in which the slab is divided into two in the vertical direction. The provided third decoration unit C is installed. Further, at the right end portion, a left and ／/ 2 slab (() in FIG. 6B) in which the slab of the third decorative unit C is vertically divided into two is installed.

At the left end of the lower left half, a right / sa / 2 slab [(sa) in FIG. 6 (3)] is obtained by dividing the slab of slab vertically into two parts. A fourth decorative unit D composed of a slightly large stone plate [(A) in FIG. 6 (4)] is installed. Further, at the right end, at the right end, there is a left / sa / 2 slab [(sa) in FIG. 6 (3)] in which the slab is vertically divided into two parts. A fourth decorative unit D composed of a slab [(h) in FIG. 6 (2)] is installed.

Next, as shown in FIG. 9, a first combination unit in which the first decoration unit A and the second decoration unit B are alternately combined with an appropriate joint width right and left adjacent to the second combination unit 20. 10 are formed in two upper and lower stages.

At the left end of the upper part of the first combination unit 10, a right-sided / two-sided slab is obtained by dividing a slab of slab vertically into two parts [(se / 2) in FIG. ] And a small stone plate slightly smaller than the key stone plate [(K) in FIG. 6 (2)]. In addition, at the right end, at the right end, a left-side / 2-sided slab is divided into two in the vertical direction ((3/2) in FIG. 6 (3)).
And a large stone slab slightly larger than the stone slab of [E.
(D)] is installed.

At the left end of the lower half, there is provided a right / U / 2 slab [(C / 2) in FIG. 6 (1)] in which the slab of U is vertically divided into two. 1 Install decoration unit A. Further, at the right-end half-end portion, the cue slab in the first decorative unit A is divided into two in the vertical direction.
Only the second stone plate [(C / 2) in FIG. 6 (1)] is installed.

Next, as shown in FIG. 10, a third decorative unit C and a fourth decorative unit
The second combination part 20 in which the decorative units D are alternately combined with irregular joint widths is formed in the same manner as the above-described combination method in the second combination part 20.

At the left half of the combined portion, there is provided a third decoration provided with a right / ke / 2 slab [(q) in FIG. 6 (2)] in which the slab is divided into two in the vertical direction. Unit C is installed. Also, at the right end, the left and right halves of the slab in the third decorative unit C are divided in the vertical direction.
Only the ケ / 2 slabs (() in FIG. 6 (2)) are installed.

Further, a half end formed at the lower end of the formwork has
A first combination part 10 is formed by combining a part of the first decoration unit A and a part of the second decoration unit B alternately with an irregular joint width.

At the left end of this half-end portion, an upper right / U / 4 stone plate obtained by dividing a U stone plate into four [(U / C in FIG. 6A)
4)], and the moss slab is divided into two in the horizontal direction.
The first decorative unit A including the stone plate [(f) of FIG. 6 (2)] is installed. In addition, the second decorative unit is composed of only a half of a stone slab [(se / 2) in FIG. 6 (3)], which is obtained by dividing the slab of slab into two in the horizontal direction, adjacent to the first decorative unit A. B is installed. In addition, between the second decorative units B, the cue slab is divided into two parts in the horizontal direction. The cuff slab [(c / 2) in FIG. 6 (1)] and the mosquito slab are vertically separated. 6 divided into two stone plates [/ C in FIG. 6 (2)
2)], the first decorative unit A is installed. Further, at the right end, the upper left / U / 4 stone plate obtained by dividing the U stone plate of the first decorative unit A into four [(U / 4) in FIG. 6 (1)].
Just set up.

After the four decorative units A, B, C, and D and the odd stone slabs 3 shown in FIG. 6 are installed in the mold 13 in this way, sand (see FIG. (Not shown). Next, reinforcing bars (not shown) are arranged on the stone slab 3, and a plurality of truss bars (not shown) are welded to the reinforcing bars at appropriate intervals to form concrete (not shown). Cast in. After the concrete has hardened, it is released from the mold, and the sand is washed off from the joints of the removed precast concrete plate.

[0035]

According to the present invention, when a retaining wall is constructed from a precast concrete plate having a turtle pattern formed by a natural stone plate, the retaining wall becomes like a stone wall constructed by stacking natural stones.

It is possible to minimize the deterioration of the turtle pattern formed by using a natural stone slab due to natural phenomena.

By combining decorative units made of natural stone slabs, a turtle pattern can be easily formed on the surface of a precast concrete slab.

[0038] A part of the decorative unit can be incorporated into a half of the end of the precast concrete plate.

[Brief description of the drawings]

FIG. 1 is a plan view of a precast concrete plate.

2A is a cross-sectional view taken along line aa of FIG. 1, and FIG. 2B is a cross-sectional view of a slab.

3A is a sectional view taken along line bb of FIG. 1, and FIG. 3B is a perspective view of a truss bar.

FIGS. 4 (1) to (3) are plan views of a basic type slab.

FIGS. 5 (1) to (4) are plan views of various decorative units.

FIG. 6 is a plan view of a divided basic type slab and other slabs.

FIG. 7 is a plan view in which a first combination part is formed in a mold.

FIG. 8 shows a first combination part and a second combination part,
It is the top view formed in the mold.

FIG. 9 is a plan view in which first combination portions and second combination portions are alternately formed in a mold.

FIG. 10 is a plan view in which a stone slab is installed in the entire formwork.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Precast concrete board 2 Concrete board 3 Stone board 4 Crack pattern 5 Truss bar 6 Joint width 7 Anchor hardware 8 Upper bar 9 Lower bar 10 First combination unit 11 Lattice bar 12 Reinforcement bar 13 Formwork 20 Second combination unit

Continuing on the front page (72) Inventor Kiyoshi Kimura 3-15-7 East, Shibuya-ku, Tokyo Japan Kaiser Co., Ltd. (72) Inventor Kajiji Kakuda 3-15-7 East, Shibuya-ku, Tokyo Kaiser Japan Co., Ltd. (72) Inventor Masaaki Kasuya 4-10-2 Hatchobori, Chuo-ku, Tokyo Seiwanai Co., Ltd. (72) Inventor Akiaki Miura 1-1, Maeno, Wakimotowaki, Oga-shi, Akita Cold-air Stone Construction Co., Ltd. 56) References JP-A-4-198546 (JP, A) JP-A-64-36812 (JP, A) JP-A-6-65934 (JP, A) JP-A-8-318582 (JP, A) Hei 10-25752 (JP, A) Actual opening Hei 7-15927 (JP, U) (58) Fields studied (Int. Cl. ⁷ , DB name) E02D 29/02 B28B 1/16 E04C 2/04-2 / 06

Claims (2)

(57) [Claims] 1. A natural material having a hexagonal flat surface and a rough peripheral surface.
Combine multiple stone slabs with appropriate joint width
The first decoration unit formed and the first decoration unit
A second decorative unit rotated 180 degrees about an axis,
The first decorative unit is rotated by 180 degrees about the vertical axis.
The third decorative unit and the third decorative unit,
The fourth decoration unit rotated 180 degrees around the center
The first decorative unit and the second decorative unit
The first combination in which is vertically and horizontally alternately combined with appropriate joint width
And the third decoration unit and the fourth decoration unit
The second combination that is alternately combined vertically and horizontally with appropriate joint width
And the stitch part are combined alternately, and the half
Any one of the four sets of decorative units is a set.
Precast concrete board characterized by being embedded . 2. A first decorative unit is formed by combining a plurality of natural stone plates having a flat hexagonal shape and a rough peripheral surface with an appropriate joint width, and forming the first decorative unit with a horizontal axis. A second decoration unit rotated by 180 degrees around the center, a third decoration unit rotated by 180 degrees around the vertical axis of the first decoration unit, and 180 degrees around the horizontal axis by rotating the third decoration unit A first combination unit in which a rotated fourth decoration unit is formed, and the first decoration unit and the second decoration unit are alternately vertically and horizontally combined with an appropriate joint width; the third decoration unit and the fourth decoration Second unit in which units are alternately combined vertically and horizontally with appropriate joint width
And a combination part, which is installed alternately in a formwork, and a part of one of the four sets of decorative units is incorporated in a half end formed at an end of the formwork. Manufacturing method of concrete board.