JPH08246482A - Contruction method for concrete block and concrete building - Google Patents

Abstract

PURPOSE: To easily form integral with cast-in-place concrete for a foundation, to reliably erect at an installation site, to perform rapid construction of a concrete building, and to provide a concrete block having excellent workability by placing cast-in-place-concrete for a foundation instead of a foundation concrete block manufactured at a factory. CONSTITUTION: A concrete block 10 comprises a rise wall part 12, and a brace part 14 connected to the inner surface 12a side of the rise wall part 12, and is formed integrally with cast-in-place concrete P1 for a foundation erected at an installation site Z1. The cast-in-place concrete P1 placed on the outer surface 12b side or the inner surface 12a side of the rise wall part 12 is not parted by the rise wall part 12 but the concrete block 10 has a notch part 15 for communication formed on the lower side of the rise wall part 12 so as to spread to both the inner surface 12a side and the outer surface 12b side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete block for constructing a concrete structure and a method for constructing the concrete structure.

[0002]

2. Description of the Related Art Conventionally, as a method of stacking concrete blocks to construct a concrete structure such as a retaining wall, a basic concrete block previously manufactured in a factory is installed on site,
There was a method of stacking concrete blocks for retaining walls on this foundation concrete block.

However, if the basic concrete blocks are manufactured in advance at the factory, a certain number of them are manufactured at once, so that it is necessary to secure and manage the storage space, which requires cost and labor, and further, the weight of Since a large foundation concrete block is transported to the installation site, there is a problem that the cost increases.

In addition, when the foundation concrete blocks manufactured in advance in the factory are installed on the site, if the installation surface is an inclined surface, the foundation concrete blocks are arranged on the inclined surface and the retaining wall is placed on them. When the concrete blocks for the building are piled up, the concrete blocks for the retaining wall are inclined, and the concrete structure cannot be constructed. Therefore, in order to make the installation surface on which the foundation concrete block is installed horizontal, the sloped surface must be leveled, and the work must be leveled on a stair-like site where horizontal surfaces of different heights are stepwise continuous. Work was needed.

In addition to the above, there has been a method in which, as basic concrete, cast-in-place concrete is cast at the installation site and hardened, and then, for example, a block of Machi is piled up. In the case of this method, it is necessary to wait until the cast-in-place concrete is completely hardened, and it takes time.Furthermore, after the hardening, it is possible to prevent falling or displacement of the intelligent blocks piled up there. It was difficult to construct the concrete structure at an early stage because it was necessary to take measures to prevent displacement.

The present invention has been made in order to solve the above-mentioned conventional defects, and the purpose thereof is to cast a cast-in-place concrete for the foundation instead of the concrete concrete block produced at the factory. By doing so, it can be easily integrated with the cast-in-place concrete for the foundation, can be reliably erected at the installation site, and enables the early construction of the concrete structure. It is to provide a construction method.

Further, another object of the present invention is that even if the installation site is composed of an inclined surface, there is no need for special ground leveling work such as leveling the inclined surface.
An object of the present invention is to provide a concrete block and a method for constructing a concrete structure which can be erected on the installation site and can construct a concrete structure at an early stage and which has excellent workability.

[0008]

A concrete block according to the present invention has the following constitution in order to achieve the above object. That is, it is provided with a standing wall portion and a retaining portion that is continuously provided on the inner surface side of the standing wall portion, and in the state where the standing wall portion is set up at the installation site, the cast-in-place concrete for foundation is placed at the installation site. In the concrete block that is integrated with, the cast-in-place concrete for the foundation, which is placed on the outer surface side or the inner surface side of the standing wall portion, is not divided by the standing wall portion and A notch, a recess, a penetrating portion or the like for communication is provided on the lower side of the standing wall portion so as to extend over both sides.

Further, it is preferable that the bottom surface of the standing wall is formed with a gradient in the width direction of the standing wall along the inclination of the inclined surface at the installation site.

Further, it is desirable that an uneven portion is provided on the bottom surface portion of the standing wall portion.

Further, the method for constructing a concrete structure according to the present invention has the following constitution in order to achieve the above object. That is, the standing wall portion of the concrete block is erected at the installation site, and at least the outer side and the inner side of the standing wall portion are provided with a formwork for forming the basic concrete block, and the outer side and inner side molds are provided. A cast concrete for foundation is cast between the frames, and the cast cast concrete for foundation and the concrete block are integrated to construct a concrete structure.

[0012]

[Operation] On the lower side of the standing wall of the concrete block,
Since notches or recesses for communication are provided, or through-holes etc. are provided, even if the cast-in-place concrete for the foundation is placed on either the outer surface side or the inner surface side of the standing wall, The cast-in-place concrete is located on both the inner surface and the outer surface of the standing wall and communicates with each other through the cutouts, recesses, or penetrations. When the concrete hardens, the basic concrete block is completed, and the basic concrete blocks located on both the inner surface side and the outer surface side of the standing wall portion are integrated with the concrete block without being divided by the standing wall portion.

Further, since a slope is formed on the bottom surface of the standing wall in the width direction of the standing wall along the slope of the inclined surface of the installation site, even if the installation site is composed of the inclined surface,
The concrete block can be erected on the inclined surface by adjusting the inclination of the bottom surface of the standing wall along the inclination of the inclined surface without performing any special ground leveling work such as leveling the inclined surface. .

Further, since the uneven portion is provided on the bottom portion of the standing wall, the cast-in-place concrete for the foundation adheres to the uneven portion, and the cast-in-place concrete for the foundation is
Firmly integrated with the standing wall. Further, even if the installation site is formed of an inclined surface, the uneven portion exerts a non-slip function and prevents the concrete block from slipping off.

Further, the standing wall portion of the concrete block is erected at the installation site, and at least the outer side and the inner side of the standing wall portion are provided with a mold for forming a basic concrete block, and the outer side and the inner side are formed. When the cast-in-place concrete for the foundation is placed between the formwork of the, the placed cast-in-place concrete for the foundation is, for example, first positioned on either the outside or the inside of the standing wall. However, after a while, they are communicated with each other through the cutout portion, the recessed portion, the penetrating portion, or the like, and are located on both the inner surface side and the outer surface side of the standing wall portion. Then, when the cast-in-place concrete for foundation is hardened, the foundation concrete block is completed, and the foundation concrete blocks located on both the inner surface side and the outer surface side of the standing wall portion are not divided by the standing wall portion. , Integrated with concrete block.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a concrete block according to the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 5, the concrete block 10 is provided with a standing wall portion 12 and a retaining portion 14 continuously provided on the inner surface 12a side of the standing wall portion 12,
A cast-in-place concrete P for foundation that is placed at the installation site Z1 in a state where the standing wall portion 12 is set up at the installation site Z1.
Integrated with 1. Then, the outer surface 12 of the standing wall portion 12
The concrete block 10 is so constructed that the cast-in-place concrete P1 for the foundation, which is cast on the b side or the inner surface 12a side, is spread over both the inner surface 12a side and the outer surface 12b side without being divided by the standing wall portion 12. The notch 15 (15a, 15b) for communication is provided on the lower side of the standing wall 12.

Specifically, one or a plurality of large notches 15a (two in total in the illustrated embodiment) are provided on the bottom wall 12c side of the standing wall 12, for example, from the bottom wall 12c side to the upper end surface. It is provided in the width direction Y1 of the standing wall portion 12 so as to have a trapezoidal shape that becomes narrower toward the 12d side, and one or a plurality (in the illustrated embodiment) at both end portions of the standing wall portion 12. The total of two small) notches 15b
The width is narrowed from the bottom surface portion 12c side toward the upper end surface 12d side.

As described above, the cutout portions 15 (15a, 1a, 1a) for communication are provided below the standing wall portion 12 of the concrete block 10.
The reason for providing 5b) is that the cast-in-place concrete P1 for the foundation is, for example, as shown in FIG.
Even if it is placed on either the outer surface 12b side or the inner surface 12a side, the foundation cast-in-place concrete P1 communicates with each other through the cutout portion 15 and the inner surface 12a side and the outer surface of the standing wall portion 12 are connected. If the cast-in-place concrete P1 for the foundation, which is located on both sides of 12b, is hardened, the foundation concrete block L1 is completed and is located on both the inner surface 12a side and the outer surface 12b side of the standing wall portion 12. The foundation concrete block L1 is the standing wall 1
This is because it is integrated with the concrete block 10 without being divided by 2.

On the lower side of the standing wall portion 12 of the concrete block 10, not the cutout portion 15 but, for example, a recess for communication, or the inner and outer surfaces 12 of the standing wall portion 12.
You may provide the penetration part for communication which penetrates a and 12b. Further, the number of the cutout portions 15 is not necessarily limited to the above-mentioned embodiment, and may be other number (for example, 1 to 3 or 5 or more),
Further, the shape of the cutout portion 15 is not limited to the illustrated embodiment, but may be various shapes.

Further, it is desirable that the bottom surface portion 12c of the standing wall portion 12 is provided with a plurality of uneven portions D1 in order to increase the contact area with the foundation cast-in-place concrete P1. Thus, the bottom surface portion 12 of the standing wall portion 12
The reason for providing a plurality of uneven portions D1 on c is that the cast-in-place concrete P1 for the foundation adheres to these uneven portions D1,
This is because the cast-in-place concrete P1 for the foundation is firmly integrated with the standing wall portion 12. However, the number and shape of the uneven portions D1 are not necessarily limited to the illustrated embodiment, and may be other numbers and shapes.
Even if the uneven portion D1 is not provided, as long as the standing wall portion 12 of the concrete block 10 stood at the installation site Z1 and the cast-in-place concrete P1 cast therein are firmly integrated, the uneven portion is provided. D1 may be omitted.

Further, as shown in FIG. 1, the retaining portion 14 is composed of two retaining portions 14 which are separated from each other in the width direction Y1 of the standing wall portion 12, and are arranged in the width direction Y1. The length W1 of the retaining portion 14 is equal to the width direction Y1 of the standing wall portion 12.
Is shorter than the length W0. In the illustrated embodiment, the retaining portion 14 is located above the central portion of the standing wall portion 12 in the height direction (see FIG. 2), and has a predetermined inner surface 12a side direction of the standing wall portion 12. It has a length W3. In addition, the front portion 1 of the retaining portion 14
4a is lower than its rear portion 14b,
The upper surface of the rear portion 14b of the retaining portion 14 is
The upper surface of the front portion 14a and the upper end surface 12d of the standing wall 12
Higher than.

Further, the retaining portion 14 is provided with an upper fitting concave portion 16 on the upper side of the standing wall portion 12 side. As shown in FIGS. 4 and 5, the upper fitting concave portion 16 is provided. ,
Stacked on the upper side of the concrete block 10,
For example, the lower fitting convex portion 1 provided below the retaining portion 21 of the concrete block 20 for the retaining wall (described below).
It fits in 8.

That is, the concrete block 20 for the retaining wall is continuously provided with the standing wall portion 22 and the inner surface side of the standing wall portion 22, and the rear portion 21b rather than the front portion 21a.
Is provided with a retaining portion 21 at a high position. The retaining portion 21 has an upper fitting recess 23 on the upper standing wall 22 side, and also has the upper fitting recess 1 of the concrete block 10 on the lower standing wall 22 side.
6 or other concrete block 20 for retaining wall
The lower fitting convex portion 18 is fitted with the upper fitting concave portion 23 of FIG.

The retaining portion 21 of the concrete block 20 for the retaining wall is the retaining portion 14 of the concrete block 10.
In the same manner as above, the standing wall portions 22 are separated from each other in the width direction,
For example, it is composed of two copy parts 21. The length of the retaining portion 21 of the block 20 in the width direction is equal to the length W1 of the retaining portion 14 of the block 10 in the width direction Y1,
Similarly, the length of the standing wall portion 22 in the width direction is the same as the standing wall portion 12 described above.
Of the block 20 in the width direction Y1 of the block 20
The length of the retaining portion 21 in the inner surface side direction coincides with the length W3 of the retaining portion 14 of the block 10 in the inner surface side direction.

Then, the upper fitting concave portion 16 of the concrete block 10 and the lower fitting convex portion 18 of the concrete block 20 for the retaining wall are fitted to each other to form the concrete structure C1. Can be built, in this case a concrete block 10
The outer surface 12b of the standing wall portion 12 and the outer surface 22b of the standing wall portion 22 of the concrete block 20 for the retaining wall can be flush with each other.

The upper fitting concave portion 16 and the lower fitting convex portion 18 are in contact with each other so that the concrete block 20 for the retaining wall stacked on the concrete block 10 is self-supporting and prevents falling. The contact surfaces 16a and 18a are respectively provided (see FIG. 5). The contact surface 16a is located on the front side of the upper fitting concave portion 16 of the concrete block 10, and the contact surface 18a of the lower fitting convex portion 18 of the concrete block 20 for the retaining wall. Located on the front side.

When the concrete structure C1 is constructed, the concrete block 20 for the retaining wall which is piled up on the concrete block 10 has the retaining portion 2 thereof.
The rear end lower end R1 (see FIG. 4 and FIG. 5) of the rear end portion 1 of FIG. 1 rotates backward and tends to fall, but the contact surface 18a on the front side of the lower fitting convex portion 18 is the upper portion. The contact surface 16a on the front side of the side fitting concave portion 16 is brought into contact with the concrete block 10 to prevent the concrete block 20 for the retaining wall from falling backward.

A rear surface 16b of the upper fitting concave portion 16 of the concrete block 10 is a rear surface 18b of the lower fitting convex portion 18 of the concrete block 20 for a retaining wall.
To prevent the concrete block 20 for the retaining wall from being displaced rearward with respect to the concrete block 10.

A space S is formed between the fitting concave portion 16 and the fitting convex portion 18 which are fitted to each other. A reinforcing member such as an extended reinforcing bar is passed through, and the stuffed concrete that is placed on the inner surface side of the concrete block 20 for the retaining wall enters to reinforce the concrete structure C1.

The standing wall 12 has an upper end surface 12
A fitting convex portion 17 is provided on the side of the retaining portion 14 of d, and the fitting convex portion 17 is provided on the lower side of the standing wall portion 22 of the concrete block 20 for the retaining wall. It fits in. And these fitting convex parts 1
7 and the fitting recess 24 prevent the concrete block 20 for the retaining wall from tipping over or shifting relative to the concrete block 10 by fitting them together.

Further, a convex portion 26 protruding upward is provided above the rear portion 14b of the retaining portion 14 of the concrete block 10 of the illustrated embodiment, and the retaining portion 21 of the retaining block concrete block 20 is provided. Rear part 21
Below the b, the convex portion 26 of the concrete block 10 is provided.
A concave portion 28 is provided so as to fit with the concave portion 28.

As a result, the convex portion 26 of the concrete block 10 is the concave portion 2 provided below the rear portion 21b of the retaining portion 21 of the concrete block 20 for the retaining wall.
8 and the concrete block 2 for this retaining wall
Since 0 is supported, it is possible to more reliably prevent the concrete block 20 for the retaining wall stacked on the concrete block 10 from falling backward.

Further, above the rear portion 21b of the retaining portion 21 of the block 20, there is provided a convex portion 30 which fits into a concave portion 28 provided below the rear portion 21b of the retaining portion 21 of another block 20. It is provided. Then, the convex portion 30 above the rear portion 21b of the block 20 fits into the concave portion 28 of the retaining portion 21 of the other block 20 to support the block 20, so that the convex portion 30 is stacked on the concrete block 20 for the retaining wall. It is possible to more reliably prevent the other blocks 20 to be fallen backward.

Next, the concrete block 10 described above.
A method of constructing a concrete structure C1 such as a retaining wall having a predetermined front slope formed by using the concrete block 20 for retaining wall will be described.

After servicing the installation site Z1, as shown in FIG. 3, the standing wall portion 12 of the concrete block 10 is
While being lifted by, for example, a crane truck (not shown), the pipe support P2 is used to support the slope Z2,
The foundation concrete block L is provided at least on the outer side and the inner side of the standing wall portion 12 in a state of standing on the installation site Z1.
1. Stand up the molding frames K1 and K2. In this state, when the cast-in-place concrete P1 for the foundation is placed between the outer and inner molds K1 and K2 using the concrete pouring machine T1, For example, even if the cast-in-place concrete P1 is initially located on either the outer side or the inner side of the standing wall portion 12, after a while, the cast-in-place concrete P1 communicates with the standing wall portion 12 via the cutout portion 15 and is communicated with each other. Are located on both the inner surface 12a side and the outer surface 12b side. The cast-in-place concrete P1 for the foundation is poured to such a height that the notch 15 is covered.

When the cast-in-place concrete P1 for foundation is hardened, the foundation concrete block L1 is completed and the inner surface 12a of the standing wall portion 12 is completed.
The base concrete blocks L1 located on both sides of the side and the outer surface 12b are integrated with the concrete block 10 without being divided by the standing wall portion 12. Thereby, the concrete block 10 is supported by the foundation concrete block L1, so that the concrete block 1
Even if there is no means for preventing the tipping or displacement of 0, it will not tip over or be displaced, and when the basic concrete block L1 is completed, the concrete block 10 of a predetermined height will stand on the installation site Z1. Will be installed.

The upper surface of the foundation concrete block L1 is
It is desirable to flatten the surface by ironing, but the outer surface 12b side of the standing wall portion 12 on the upper surface of the basic concrete block L1 is a horizontal surface, while the inner surface 1 on the opposite side is
The 2a side is a downward slope that descends toward the inner mold K2. And, the slope of the slope is the wall 12
It is preferable to adjust and set such that the angle Q with the inner surface 12a is approximately 90 degrees.

Then, after removing the molds K1 and K2 for forming the basic concrete block, these molds K1 and K2 are erected at the adjacent positions, and the same work is performed to make the concrete block 10 as shown in FIG. As shown, they are continuously arranged in parallel in the width direction Y1. At that time, a convex portion M1 is provided at one end of the standing wall portion 12 of the concrete block 10 (see FIGS. 1 and 2), and the convex portion M1 is fitted to the opposite side portion thereof. Since a concave portion (not shown) that can be fitted is provided, the concrete block 10 can be formed by fitting the convex portion M1 and the concave portion.
Can be juxtaposed in the thickness direction of the standing wall portion 12 without any positional deviation.

Thereafter, as shown in FIG. 7, a form K3 of a predetermined height such as a weir board is erected on the installation site Z1 on the rear end L2 of the basic concrete block L1. Then, a backfill material F1 is placed between the mold K3 and the slope Z2, and then the mold K3 is supported by the backfill material F1 from the slope Z2 side. Between the formwork K3 and the concrete block 10, the body-filling and back-filling concrete G1 has a predetermined height H1 (see FIG. 10).
(Refer to), and cure and cure.

However, as shown in FIG. 8, instead of additionally pouring the cast-in-place concrete on the completed foundation concrete block L1, the formwork K1, K is previously prepared.
2 and K3 are standing at the installation site Z1 and the predetermined height H
Up to 1, a method of placing the cast-in-place concrete G1 at once may be adopted.

[0042] And, the concrete G
When 1 is cured, the concrete block 20 for the upper retaining wall is placed on the concrete block 10 so that the outer surfaces 12b and 22b of both standing wall portions 12 and 22 are flush with each other (not shown). Concrete block for the retaining wall on the upper side 2
0 is self-supporting on the concrete block 10.

In this manner, the first-stage retaining wall concrete blocks 20 are piled up on the concrete blocks 10 so as to be continuously arranged in parallel in the width direction Y1, and are formed of a dam or the like. Raise the frame K3 to the upper side,
Concrete block 20 for the first stage retaining wall and slope Z2
A back filling material F1 between the mold K3 and the slope Z2 in a state of being positioned between the mold K3 and the slope Z2, and the back filling material F1 supports the mold K3 from the slope Z2 side. In this state, the body-filling and back-filling concrete G1 is placed between the form K3 and the concrete block 20 to cure and cure.

Thereafter, the second-stage concrete blocks 20 are piled up on the first-stage concrete blocks 20 so that the outer surfaces 22b of both standing wall portions 22 are flush with each other (see FIG. 6). By repeating the work and pouring top end concrete (not shown) on the uppermost stage,
A concrete structure C1 such as a retaining wall is constructed.

Next, as another embodiment, FIGS.
The concrete block 10 shown in FIG. still,
In this embodiment, the same members as those in the above-described embodiments are designated by the same reference numerals, and detailed description thereof will be omitted.

On the bottom surface portion 12c of the standing wall portion 12 of the concrete block 10 of this embodiment, in the width direction Y1 of the standing wall portion 12, a gradient Y2 along the inclination of the inclined surface of the installation site Z3.
Are formed. In this way, the bottom surface portion 1 of the standing wall portion 12
The reason why the gradient Y2 is formed in 2c is as follows.
That is, even if the installation site Z3 is formed of an inclined surface, the installation site Z3 is flattened into a stair-like site where horizontal planes of different heights are continuously formed, without performing any special ground leveling work. This is because the concrete block 10 can be erected on the inclined surface only by adjusting the inclination of the bottom surface portion 12c of the standing wall portion 12 so as to follow the inclination of the inclined surface.

Then, the bottom surface portion 12c of the standing wall portion 12
By forming a gradient Y2 that is inclined in the width direction Y1, the standing wall portion 12 of the concrete block 10 has both side ends on one (left) side and the other (right) side thereof.
It has different heights X1 and X2, and its standing wall 1
The height between the two end portions of 2 is the height determined by the gradient Y2.

Therefore, as shown in FIG. 11, the standing wall portion 12 of the concrete block 10 is one side (left side).
When the heights X1 and X2 are respectively provided at the side ends on the other side (right side), the side ends on the other side (right side) of the standing wall portions 12 of the concrete blocks 10 adjacent to the one side (left side). Must be at the height X1, while the side end on one (left) side of the standing wall portion 12 of the concrete block 10 adjacent to the other (right) side is at the height X2. There must be.

Therefore, as a result of forming the slope Y2 inclined in the width direction Y1 on the bottom surface portion 12c of the standing wall portion 12, in the adjacent concrete blocks 10 and 10, those standing wall portions 12 have various heights. Will be required. However, when the concrete block 20 for the retaining wall is stacked on the concrete block 10, the concrete block 20 for the retaining wall is
Can be stacked horizontally on 0.

When using the concrete block 10 to construct the concrete structure C1 on the installation site Z3 composed of an inclined surface, a bottom surface having a slope that matches the inclination of the inclined surface of the installation site Z3. The concrete block 10 having the portion 12c is produced in advance in a factory and used. Therefore, this concrete block 10
Each installation site Z3 needs to be manufactured so as to have a bottom surface portion 12c having a slope corresponding to the slope of the slope.

Then, as in the case of constructing the concrete structure C1 described above, the standing wall portion 12 of the concrete block 10 is erected at the installation site Z3 and the standing wall portion 1
Forming molds K1 and K2 for forming a basic concrete block are provided on at least the outer side and the inner side of 2, and a site for the foundation is provided between these outer and inner formwork K1 and K2. Pour concrete P1 may be poured. Then, the cast in-place concrete P1 for the foundation and the concrete block 10 are integrated. afterwards,
By stacking a plurality of retaining block concrete blocks 20 on the concrete block 10, the concrete structure C1 is constructed on the installation site Z3 composed of the inclined surface, as clearly shown in FIG. Become.

In this embodiment as well, an example in which a plurality of uneven portions D1 are provided on the bottom surface portion 12c of the standing wall portion 12 is shown. These uneven portions D1 are the cast-in-place concrete P1 for the foundation, Not only is it solidly integrated with the standing wall portion 12, but it also has a non-slip function for preventing the concrete block 10 installed at the installation site Z3, which is an inclined surface, from slipping and sliding down.

The concrete block according to the present invention is not limited to the above embodiments, but can be variously modified without departing from the spirit thereof. For example,
In the illustrated embodiment, the retaining portion 14 is provided so as to be located above the central portion of the standing wall portion 12 in the height direction thereof, but the cutout portion 15 for communication is provided on the lower side of the standing wall portion 12, It may be provided at any position and at any position as long as it does not hinder the formation of the recessed portion, the penetrating portion, or the like, or the formation of the slope Y2 on the bottom surface portion 12c of the standing wall portion 12. Further, in the illustrated embodiment, the retaining portion 14 is provided with the upper side fitting concave portion 16, and the retaining portion 2 of the concrete block 20 for the retaining wall is provided.
1 is fitted in the lower fitting convex portion 18 and the contact surface 18a of the lower fitting convex portion 18 contacts the contact surface 16a of the upper fitting concave portion 16. Thus, the concrete block 10 has a structure for preventing the concrete block 20 for the retaining wall from falling backward, but it is not always necessary to provide a structure for preventing the concrete block 20 from falling due to such fitting. .

Further, the concrete structure according to the present invention may be used, for example, for revetment of the sea, rivers, etc., protection of side wall surfaces of roads, etc.

The front surface of the standing wall of these concrete blocks may be decorated with irregularities or adhering stones, or a decorative surface composed of other patterns such as geometric patterns. It may be.
Further, the concrete block according to the present invention is not limited to a size as shown in the embodiment, or a large-sized concrete block having a size larger than that, and a concrete block having a size smaller than that, further, It can also be applied to small concrete blocks.

[0056]

As is clear from the above description, according to the concrete block of the present invention,
It has the following effects.

According to the concrete block of the first aspect, since the notch or the recess for communication or the penetrating portion is provided on the lower side of the standing wall of the concrete block, the site for the foundation is used. Even if the cast concrete is placed on either the outer surface side or the inner surface side of the standing wall, the cast-in-place concrete for the foundation is communicated with each other through the cutout portion or the recessed portion or the through portion. Then, when the cast-in-place concrete for the foundation, which is located on both the inner surface side and the outer surface side of the standing wall portion, hardens, the foundation concrete is completed, and both the inner surface side and the outer surface side of the standing wall portion are completed. The foundation concrete located at is integrated with the concrete block without being divided by the standing wall.

As described above, according to the concrete block described in claim 1, the concrete is not piled up on the prefabricated foundation concrete block but is integrated with the cast-in-place concrete for the foundation, so that the concrete is Since the structure can be constructed, problems such as securing, managing, and transporting the storage place of the basic concrete block are solved. In addition, by integrating the concrete block and the cast-in-place concrete for the foundation,
Even if there is no means for preventing the concrete block from tipping or shifting, when the concrete casts for the foundation is hardened without falling or shifting, the concrete block is reliably erected at the installation site. Therefore, unlike the prior art in which a technique of stacking a sill block on the cast-in-place concrete is used after it is hardened, the time required to construct the concrete structure can be shortened.

Further, according to the concrete block of the second aspect, since the bottom surface of the standing wall portion is formed with a slope in the width direction of the standing wall portion along the slope of the inclined surface at the installation site. , Even if the installation site consists of an inclined surface,
The inclination of the bottom surface of the standing wall can be adjusted so as to follow the inclination of the inclined surface, and the concrete block can be erected on the inclined surface. As a result, even if the installation site consists of slopes, concrete blocks can be erected at the installation site without requiring special ground leveling work such as leveling the slopes, and the concrete structure can be quickly constructed. Can be built into.

According to the concrete block of the third aspect, since the uneven portion is provided on the bottom portion of the standing wall portion, the cast-in-place concrete for foundation adheres to the uneven portion, The cast-in-place concrete for the foundation is firmly integrated with the standing wall. Therefore, the concrete block is firmly supported by the cast-in-place concrete for foundation that has been cast at the installation site, and stands upright at the installation site. Further, when the installation site is an inclined surface, the uneven portion exerts a non-slip function, and the concrete block can be prevented from sliding down.

Further, according to the method for constructing a concrete structure described in claim 4, in a state in which the standing wall portion of the concrete block is stood at the installation site, the foundation is provided at least on the outer side and the inner side of the standing wall portion. Providing a formwork for concrete block molding and placing a cast-in-place concrete for the foundation between these outer and inner formwork,
The cast-in-place concrete for foundation is, for example,
Even if it is initially located on either the outer side or the inner side of the standing wall portion, after a while, it communicates with each other through the cutout portion, the recessed portion, or the penetrating portion, and the inner surface side of the standing wall portion and It will be located on both the outer surface side.

When the cast-in-place concrete for foundation is hardened, the basic concrete block is completed, and the basic concrete blocks located on both the inner surface side and the outer surface side of the standing wall are divided by the standing wall. Instead, since it is integrated with the concrete block, even if there is no means to prevent the concrete block from falling over or misalignment, when the concrete cast in place for the foundation hardens, it will not fall down or misalign.
The concrete block will be reliably erected at the installation site.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of a concrete block according to the present invention.

FIG. 2 is a similar side view.

FIG. 3 is a diagram illustrating a method of integrating a concrete block of this embodiment with a cast-in-place concrete for a foundation.

FIG. 4 is a sectional view of a concrete structure constructed by stacking a plurality of concrete blocks for a retaining wall on the concrete block of this example.

FIG. 5 is an enlarged cross-sectional view of an essential part showing a state in which concrete blocks for a retaining wall are stacked on the concrete block of this embodiment.

FIG. 6 is a front view of a concrete structure constructed by stacking a plurality of concrete blocks for a retaining wall on the concrete block of this example.

FIG. 7: Using the concrete block of this example,
It is a figure explaining the method of constructing a concrete structure.

FIG. 8: Using the concrete block of this example,
It is a figure explaining other methods of constructing a concrete structure.

FIG. 9 is a view corresponding to FIG. 1 of a concrete block of another embodiment.

FIG. 10 is a similar side view.

FIG. 11: On a concrete block of another embodiment,
It is a front view of a concrete structure constructed by stacking a plurality of concrete blocks for a retaining wall.

[Explanation of symbols]

10 Concrete Blocks 12 Standing Walls 12a Inner Surfaces of Standing Walls 12b Outer Surfaces of Standing Walls 12c Bottom Surfaces of Standing Walls 14 Rest Areas 15, 15a, 15b Cutouts Z1, Z3 Installation Site C1 Concrete Structure D1 Uneven Parts Y1 Width Direction of Standing Walls Y2 Gradient K1, K2 Formwork for foundation concrete block molding P1 Foundation cast-in-place concrete

Claims (4)

[Claims] 1. A standing wall portion, and a retaining portion that is continuously provided on the inner surface side of the standing wall portion. The standing wall portion is used for a foundation that is placed on the installation site in a standing state. A concrete block integrated with cast-in-place concrete, which is cast on the outer surface side or the inner surface side of the standing wall portion, and the cast-in-place concrete for the foundation is not divided by the standing wall portion, and the inner surface side and A concrete block provided with a notch, a recess, or a penetrating portion for communication on the lower side of the standing wall portion so as to extend to both the outer surface side. 2. The concrete block according to claim 1, wherein a slope is formed on the bottom surface of the standing wall in the width direction of the standing wall along the slope of the sloped surface at the installation site. 3. The concrete block according to claim 1, wherein an uneven portion is provided on a bottom surface portion of the standing wall portion. 4. The standing wall portion of the concrete block according to claim 1 is erected at an installation site, and a mold for forming a basic concrete block is formed on at least an outer side and an inner side of the standing wall portion. It is provided and the cast-in-place concrete for the foundation is placed between the outer and inner molds, and the cast-in-place concrete for the foundation and the concrete block are integrated. A method for constructing a concrete structure, by which a concrete structure is constructed.