JP2843668B2 - Corner forming structure of retaining wall formed by stacking blocks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to the construction of a retaining wall that is bent at a substantially right angle by using a retaining wall block and a corner block, particularly when the retaining wall intersects at a substantially right angle. In the structure of the corner portion in FIG.

<Related Art> When the height of a retaining wall is relatively low, the retaining wall is often constructed using a plurality of blocks.

Especially with ribs projecting over the entire length on the surface side,
The retaining wall is made of a concrete block in the form of a flat rectangular parallelepiped with grooves formed on the back side over the entire length, and the grooves formed in this concrete block are sequentially laminated while engaging with the ribs. Therefore, it is generally used as a retaining wall in a place where a relatively heavy aesthetic appearance is required.

<Problems to be solved by the invention> However, conventionally, when a concrete wall as described above is used to construct a retaining wall having a corner that bends at a substantially right angle, conventionally, these retaining walls have a substantially right angle. The ends of the ribs and the grooves were exposed on the side surfaces of the formed corners, and the aesthetic appearance at the corners of the retaining wall could be impaired.

Here, when a flat concrete block without ribs or grooves is used for the corners of the retaining wall so as not to impair the aesthetic appearance of the retaining wall, the top and bottom of the blocks stacked at the corners are used. Since there is no locking state between the rib and the groove in the direction, there is a problem that the lamination strength at the corners is significantly reduced.

The concrete block for constructing the retaining wall is produced in advance in a factory and has high dimensional accuracy.

However, each concrete block has an allowable dimension range, and when building a relatively long retaining wall, these errors accumulate and a large accumulation error occurs. There was a problem that could not be expressed.

Thus, the present invention, in the case of constructing a retaining wall having a corner bent at a substantially right angle, without deteriorating the aesthetic appearance of the retaining wall, and by stacking blocks that can also absorb the accumulation error described above. It is an object of the present invention to provide a corner forming structure of the formed retaining wall.

<Means for Solving the Problems> In order to solve the above problems, the corner portion forming structure of the retaining wall formed by stacking the blocks according to the present invention extends from the middle in the width direction to one side over the entire length in the longitudinal direction on the surface side. A rectangular flat plate having a linear rib protruding at a shifted position, and a linear groove formed at a position further deviated from the linear rib to one side from the widthwise middle to one side over the entire length in the longitudinal direction on the back side. Retaining wall block, a straight rib protruding from the rear end side in the longitudinal direction on the front side, shifted from the middle in the width direction to one side, and one side from the middle in the width direction in the longitudinal direction on the back side And a linear groove formed from the rear end side further displaced from the linear rib, wherein the length of the linear rib and the length of the linear groove are from the total length in the longitudinal direction to the width. Dimension less than the length dimension in the direction A rectangular block-shaped corner block; and a plurality of retaining wall blocks are joined so that linear ribs are continuous in the longitudinal direction, and a linear rib is connected to the first corner block at the foremost portion. A first corner portion of the first corner block is joined to the retaining wall block at a substantially right angle from one side of the first corner block to form a first corner portion of the retaining wall bent substantially at a right angle; On the one corner portion, a portion without a straight groove of the second corner block is laminated on a portion without a straight rib of the first corner block so as to intersect at a substantially right angle. A plurality of retaining wall blocks are joined to the rear end of the corner block so that the linear ribs are continuous,
A second corner portion of the retaining wall is formed by joining the retaining wall blocks at a substantially right angle from one side, and the third and fourth corner blocks are sequentially formed on the second corner portion of the retaining wall. Cross each other at substantially right angles, and
Are laminated.

<Operation> According to the present invention, when the corners are constructed by connecting the retaining walls in a substantially right-angled manner, the corners can have a solid image aesthetic appearance, and have high strength and accurately represent the ridge lines. Corners.

That is, a retaining wall block having a rib projecting over the entire length in the longitudinal direction on the front side and a groove formed over the entire length in the longitudinal direction on the back side is formed by engaging the rib with the groove and extending in the width direction of the retaining wall block. By stacking while shifting the position, a high-strength retaining wall can be constructed.

Further, in the case of constructing a retaining wall having a corner bent at a substantially right angle, a rib having a predetermined length connected to the rib of the retaining wall block on the surface and not extending over the entire length in the longitudinal direction, and a retaining formed on the back surface. Using a corner block connected to the groove of the wall block and forming a groove of a predetermined length not extending over the entire length in the longitudinal direction,
By arranging the corner block so that one of the retaining walls, the ribs, and the groove are continuous, and stacking the corner block on top of the other with the other retaining wall block, the rib, and the groove continuous, the end of the rib and the groove However, it is possible to form a corner that is not exposed at all.

Further, in the above configuration, the corner block is restrained from moving in the width direction by engaging the retaining wall blocks stacked vertically and the rib and the groove, and abuts the end of the rib and the end of the groove. By doing so, the moving direction with respect to the longitudinal direction can be restricted only in the extending direction of the retaining wall.

Therefore, since the corner block can be formed integrally with the retaining wall, the corner portion can be configured to have the same strength as the retaining wall forming portion.

In addition, as described above, since the corner blocks have the degree of freedom of movement in the extending direction of the retaining wall, when the errors of the individual retaining wall blocks are accumulated, the corner blocks are moved in the extending direction of the retaining wall. By doing so, this accumulation error can be absorbed at the corner.

<Embodiment of the Invention> Hereinafter, a corner forming structure of a retaining wall formed by laminating a retaining wall block and a corner block according to the present invention will be described.

1 (a) to 1 (c) are schematic configuration diagrams showing the corners of a retaining wall bent at a substantially right angle, FIG. 2 is a configuration diagram of a retaining wall block, and FIG. 3 is a corner block. FIG.

First, the structure of the retaining wall block and the corner block according to the present invention will be described with reference to FIGS.

In FIG. 2, a rib 1a protrudes over the entire length of the retaining wall block 1 on the front side of the rectangular flat retaining wall block 1.

On the back side, a groove 1b is formed over the entire length of the retaining wall block 1.

Here, the rib 1a and the groove 1b with respect to the retaining wall block 1
Is not formed at the center position in the width direction of the retaining wall block 1, but is formed at a position shifted to one side from the intermediate position in the width direction as understood from FIG. 2 in the present invention. It is assumed.

As shown in FIG. 1, a retaining wall block 1 is provided on the right side of the drawing, and a retaining wall block 1 is formed on the left side of the drawing and is formed symmetrically with the shape of the retaining wall block 1. The retaining wall block 1 'is used.

The rib 1a and the groove 1b are formed at different positions (distances) with respect to the side surface 1c.

That is, the groove 1b is formed at a position closer to the side surface 1c than the rib 1a.

Therefore, when a retaining wall having a predetermined height is constructed by stacking the ribs 1a protruding from the retaining wall block 1 while engaging the grooves 1 formed in the retaining wall block 1 located at the upper stage, the retaining wall is laminated. A step corresponding to the distance between the groove 1b and the rib 1a is generated for each step, and the entire retaining wall exhibits a steep, substantially stair-like shape.

For this reason, it is possible to make the whole retaining wall a substantially integral structure, and it is possible to construct a retaining wall having high strength and a sense of stability.

In this embodiment, the distance between the groove 1b and the rib 1a is set to about 10 mm.

However, it is clear that the distance is intended to set the inclination of the retaining wall and should not be limited to this dimension.

The side surface 1c is configured as an exposed surface when a retaining wall is constructed. For this reason, the side surface 1c can be formed as a smooth surface, and can also be formed as a natural stone surface.

Next, the configuration of the corner block 2 will be described with reference to FIG. 3. First, a rib 2a is provided on one surface of the corner block 2 so as to protrude.

The length of the rib 2a varies depending on the length of the corner block 2, but has a size equal to or smaller than a value obtained by subtracting the length in the width direction from the total length in the longitudinal direction of the block 2.

That is, in the case of constructing a retaining wall that is bent at a substantially right angle, the corner blocks 2 connected to the retaining wall units that are stacked at the corners of the retaining wall are alternately and sequentially arranged in different directions. They are to be laminated (see FIG. 1 (c)).

For this reason, the length of the rib 2a in the corner block 2 needs to be equal to or less than the width dimension of the block.

Further, since the retaining wall block 1 has a step for each lamination step, it is necessary to escape this step.

Therefore, the length of the rib 2a must be smaller than the width of the corner block 2 plus the separation between the rib 1a and the groove 1b in the retaining wall block 1.

In this embodiment, the corner block 2 has a width of 300 mm and a length of 6 mm.
The length is set to 00 mm, and the length of the rib 2a is set to about 260 mm. However, the length is not limited to this, and if the dimensional specifications of the width and length of the corner block 2 are different, the length of the rib 2a naturally has a different value.

Further, a groove 2b is formed on the other surface of the corner block 2. The length of the groove 2b varies depending on the length of the corner block 2, but has a size substantially equal to a value obtained by subtracting the width from the entire length of the block 2.

The ribs 2a and the grooves 2b are ribs formed on the retaining wall block 1.
Like the retaining wall block 1, it is formed closer to one side surface 2c so as to be connectable to the groove 2a.

Therefore, as the corner block, a corner block 2 formed into a shape shown in FIG. 3 and a corner block 2 ′ formed into a shape symmetrical to the corner block 2 are used.

The side surfaces 2c and 2d of the corner block 2 are formed as exposed surfaces when forming a corner. Therefore, the side surfaces 2c and 2d can be formed as a smooth surface or a natural stone surface similarly to the side surface 1c.

Next, a description will be given of a configuration of a corner portion of the retaining wall constructed by connecting the retaining wall block 1 and the corner block 2 configured as described above at a substantially right angle.

FIG. 1 (a) is an explanatory view of a case where a first retaining wall corner is formed.

A corner block 2 is arranged at a corner bent at a substantially right angle, and a plurality of retaining wall blocks 1, 1 '(1
1, 12, ..., 13, 14, ...).

 At this time, the ribs 2a and 1a are connected and arranged.

FIG. 1 (b) shows a retaining wall block 1 for constructing a second retaining wall corner on top of the first retaining wall corner shown in FIG. 1 (a).
FIG. 1 is an explanatory diagram of a case where a corner block 2 ′ is stacked.

First, the corner block 2 'is arranged so that the direction of the corner block 2' is different from that of the corner block 2 arranged in the substantially right-angled corner at the first retaining wall corner by 90 degrees.

At this time, a groove (not shown) formed in the corner block 2 'is engaged with a rib 1a' (see FIG. 1 (a)) protruding from the retaining wall block 13 at the corner of the first retaining wall.

Since the length of the groove formed in the corner block 2 'is substantially equal to the difference between the total length and the width of the corner block 2', the corner block 2 'is moved in the direction of arrow a. Then, the end of the rib 1a 'of the retaining wall block 13 and the end of the groove come into contact.

At this time, the side surface 2d 'of the corner block 2'
It is flush with the side surface 2c of the corner block 2 at the corner of the retaining wall.

In addition, a step of about 10 mm occurs between the side surface 2c 'of the corner block 2' and the side surface 2c of the corner block 2.

Starting from the corner block 2 ', the retaining wall blocks 1, 1' (21, 22, ..., 23, 24, ...) are respectively stacked on top of the retaining wall blocks 1, 1 'at the corners of the first retaining wall. I do.

At this time, the retaining wall block 1 constituting the second retaining wall corner,
The groove 1b formed in 1 'is inserted into the retaining wall block 1 at the corner of the first retaining wall,
Engage with the ribs 1a, 1a 'of 1'.

In particular, the retaining wall block 21 is simultaneously engaged with the rib 2a of the corner block 2 and the rib 1a of the retaining wall block 11, so that the corner block 2 at the corner is integrally connected to the retaining wall block 1 constituting the retaining wall. Is done.

When the retaining wall blocks 1 and 1 'are stacked as described above, between the retaining wall blocks 1, 1' at the first retaining wall corner and the retaining wall blocks 1, 1 'at the second retaining wall corner. A step of about 10 mm occurs.

The corner block 2 'at the corner of the second retaining wall can be moved only in the direction of arrow b. Therefore, when an accumulation error occurs in the direction of the retaining wall blocks 23 and 24, the corner block 2 'can be moved in the direction of arrow b to absorb the accumulation error.

FIG. 1 (c) is an explanatory view of the case where the retaining wall blocks 1, 1 'and the corner block 2 of the third retaining wall corner are laminated on the upper part of the second retaining wall corner laminated as described above.

This lamination is performed in the same manner as the lamination of the second corner of the retaining wall. Accordingly, by moving the corner block 2 in the direction of arrow c, the side surface 2d of the corner block 2 can be made flush with the side surface 2c 'of the corner block 2' at the second retaining wall corner. By moving in the d direction, it is possible to absorb the accumulation error generated in the construction direction of the retaining wall blocks 31, 32.

The corner block 2 'at the corner of the second retaining wall is integrally connected to the retaining wall constructed by the retaining wall block 1'.

When the corner blocks 2 of the third retaining wall corner are collected,
There is a step of about 20 mm between the side surface 2c of the block 2 and the side surface 2d 'of the corner block 2' of the second retaining wall corner,
When the retaining wall blocks 1 and 1 'and the corner blocks 2 are stacked in a predetermined number of steps, the corners also have a slope as a whole, and are formed in a preferable shape.

<Effect of the Invention> As described in detail above, according to the formation structure of the corner portion in the retaining wall using the block according to the present invention, the corner formed by connecting the retaining walls constructed from different directions in a convex shape. The part can be configured rationally.

In particular, when the retaining wall is constructed, the retaining wall block is engaged with the ribs and the grooves to be laminated, so that a retaining wall having high strength can be formed. Since the corner block at the corner is integrally connected to the retaining wall by the rib and the groove, the corner and the retaining wall have a substantially integral structure, and the strength of the corner is configured to be equal to that of the retaining wall. You can do it.

Further, since the ribs and the grooves formed in the corner block are formed with a predetermined length, the ribs, the grooves and the like are not exposed at the corners. For this reason, the beauty | look in a corner part can be improved.

In addition, since the corner blocks have the degree of freedom of movement in the extending direction of the retaining wall, if the errors of the individual retaining wall blocks are accumulated at the corners, the accumulated errors can be absorbed. It has.

[Brief description of the drawings]

1 (a) to 1 (c) are schematic explanatory views of a corner portion of a retaining wall bent at a substantially right angle, FIG. 2 is an explanatory diagram of a retaining wall block configuration, and FIG. 3 is a corner block. FIG. 1,1 '... Retaining wall block, 2,2' ... Corner block, 1a, 1a ', 2a, 2a' ... Rib, 1b, 2b ... Groove, 1c, 1c ', 2c, 2d, 2c' , 2d '…… side view.

Claims (1)

(57) [Claims] 1. A linear rib protruding from the middle in the width direction to one side over the entire length in the longitudinal direction on the front surface side,
From the middle in the width direction to one side over the entire length in the longitudinal direction on the back side,
A rectangular flat plate-shaped retaining wall block having a linear groove formed further displaced from the linear rib; and a rear end displaced to one side from the widthwise middle in the longitudinal direction of the front side. A linear rib protruding from the rear side, and a linear groove formed from the rear end side, further displaced from the linear rib to one side from the widthwise middle in the longitudinal direction on the back side. And a rectangular flat plate-shaped corner block whose length is equal to or less than a value obtained by subtracting a length dimension in the width direction from a total length in the longitudinal direction. A plurality of retaining wall blocks are joined so that straight ribs are continuous in the longitudinal direction, and a first corner block is joined at the foremost end so that straight ribs are continuous. At approximately right angles from one side of the To form a first corner portion of the retaining wall that is bent substantially at a right angle. Then, on the first corner portion of the retaining wall, on the portion of the first corner block without the straight ribs. The portions of the second corner block that do not have a linear groove cross each other at substantially right angles and are laminated, and a plurality of retaining wall blocks are connected to the rear end side of the second corner block so that the linear ribs are continuous. The retaining wall block is joined at substantially right angles from one side to form a second corner of the retaining wall, and the third and fourth new corners are sequentially formed on the second corner of the retaining wall. The corner formation structure of the retaining wall formed by laminating the blocks, wherein the third and fourth corners of the retaining wall are laminated such that the corner blocks intersect at substantially right angles.