JPH0654011B2 - Wall building blocks - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block which is used by stacking it in a plurality of upper and lower stages to construct various wall bodies such as a retaining wall, a greening wall and a fish nest.

[0002]

2. Description of the Related Art In a masonry retaining wall that has been widely used as a retaining wall, the masonry material presses against the backing material and keeps its position. To ensure the stability of the wall body, The point of action of the resultant force of body weight and earth pressure must be inside the wall front surface at any height, and the line obtained by connecting the points of action of the resultant force at each height, that is, the force line The shapes are classified into three types, A, B, and C, as shown in FIG.

In the type A, the line of force is within the center 1/3 (middle third) of the cross section of the wall from the top to the foundation, so that it is the most stable wall, especially the center of the wall. Is aligned with the line of force, the most ideal wall is constructed from both aspects of stability and aesthetics.

In the type B, the power lines are projected from the rear surface of the wall except the top and the vicinity of the foundation. Therefore, if the back-filling layer or the back soil is loose, there is a risk that it will sink to the rear side. Sufficient compaction is required.

In the type C, since the lower part of the force line is projected from the front surface of the wall, there is a risk of the wall protruding and collapsing. Therefore, the retaining length of the retaining wall should be set longer or the inclination of the retaining wall should be increased. Need to be set loosely.

In a conventional concrete block provided as a masonry material that replaces Machichi stone, rubble stone, cobblestone, etc., the upper and lower surfaces of the blocks joined at the time of stacking are generally formed into flat surfaces. .

Therefore, when the lower block is placed on the foundation concrete whose upper surface is inclined and the lower surface of the upper block is joined to the upper surface of the lower block to stack the blocks in a plurality of upper and lower stages, the front surfaces of the blocks in a plurality of upper and lower stages are Since the lines are aligned on an inclined straight line, and naturally the longitudinal centerline of the wall body is also an inclined straight line, it does not coincide with the force line that is a curve concave to the front side.

In the valley stacking block disclosed in Japanese Utility Model Laid-Open No. 58-69044, a positioning ridge is formed on one of the opposing side surfaces of the main body, and the other locating ridge is formed on the other opposing side surface of the main body. To form a positioning groove into which
The longitudinal section of the positioning ridge and the positioning groove in the front-rear direction has an arc shape.

However, in this knowledge block, the positioning ridges and the positioning grooves are provided only at the intermediate portions of the upper and lower joining end faces of the block, and the ridge line forming the joint end on the front side of the positioning ridges and on the front side of the positioning grooves. Since the ridges are provided, the upper block is obstructed by the joint end when the positioning protrusion is fitted into the positioning groove until the ridge line portion is in considerable contact, so that the lower block is inclined and rotated toward the front side. It is completely impossible to do.

Thus, the positioning ridge and the positioning groove are
It is provided only to prevent the misalignment of the blocks by positioning the joints between adjacent blocks.The positioning ridges and the positioning grooves make the upper blocks lower blocks after the blocks are stacked. On the other hand, it is not intended to be rotated to the front side in the vertical plane.

Therefore, also in this intelligent block, the front surfaces of the blocks in the upper and lower stages are aligned on an inclined straight line, and as a matter of course, the longitudinal center line of the wall body is also an inclined straight line. It does not match the force line, which is a curved line that is concave to the side.

As described above, in the conventional masonry wall body or block masonry wall body, the longitudinal centerline of the wall body cannot be matched with the force line which is a curve concave toward the front side. The slope of the wall is set gently to ensure stability, and the maximum allowable height of the wall is set relatively low.

However, if the gradient of the wall is set to be gentle, the area occupied by the wall construction on the ground following the top or the ground following the foundation will increase, which poses a problem in effective use of land.

[0014]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to be able to stack accurately and easily so that the longitudinal centerline of a wall coincides with the force line of force or for the most part is close enough, and The adjustment range of the arrangement angle of the upper and lower blocks is relatively wide, various wall bodies can be easily constructed by one type of block, and the front side of the wall body is independent of the size of the arrangement angle of the upper and lower blocks. It is an object of the present invention to provide a block for constructing a wall body, which can always form an orderly and uniform shape.

[0015]

A wall body building block 1 of the present invention will be described below with reference to the reference numerals in the accompanying drawings. One of the upper end surface and the lower end surface of the block 1 is a longitudinal cross section in the front-rear direction. Is provided with an arc-shaped joining concave portion 2, and a joining convex portion 3 having an arc-shaped longitudinal cross section is provided on the other of the upper end surface and the lower end surface of the block 1 for joining the front surface portion 12 of the block 1. It is formed in an arc surface continuous with the convex portion 3.

In a state in which the projections 3 for fitting are fitted in the recesses 2 for bonding and the blocks 1, 1 are stacked, the upper block 1 and the lower block 1 are centered around the concave parts 2 and the convex projections 3 for bonding. The concave portion 2 for joining and the convex portion 3 for joining are provided over the entire width in the front-rear direction so as to be able to rotate to the front side in the vertical plane.

[0017]

When building a wall body, the joining convex portion 3 of the block 1 at the lowermost stage is fitted into the concave portion 10 of the basic concrete body 9 having an arcuate longitudinal section, and the center of the block 1 is the wall body to be constructed. The block 1 at the lowermost stage is slanted and rotated to the front side in the vertical plane in a state in which the joining convex portion 3 is slidably contacted with the concave portion 9 of the basic concrete body 9 so as to match the force line calculated in advance. .

Next, the joining convex portion 3 of the block 1 of the second stage
Is fitted into the joining concave portion 2 of the lowermost block 1, and the second stage block 1 has the joining convex portion 3 so that the center of the block 1 coincides with the force line. While being slidably in contact with the joining concave portion 2 of the above, it is rotated to the front side by a required angle in the vertical plane.

By repeating this stacking and adjustment of the arrangement angle, a large number of blocks from the lowermost block to the uppermost block are sequentially stacked along the force line.

When the wall to be constructed is an earth retaining wall, the back of the piled blocks 1 and 1 is filled with backfill material such as backfilling stones and crushed gravel according to a conventional method, and Is backfilled and the required drainage pipe is installed.

In the case of kneading, a joint mortar is filled between the joining concave portion 2 of the lower block 1 and the joining convex portion 3 of the upper block 1 according to a conventional method, and backfilling is carried out behind the block stacking wall body. Concrete is poured, the back soil is backfilled, and the required drainage pipes are installed.

[0022]

EXAMPLE A block of the present invention is constructed on the ground or underwater such as a soil retaining wall, a green retaining wall, a soil retaining and retaining wall, an artificial fish nest, etc. by appropriately changing the shape structure of the main body. It is applied to various kinds of walls. Further, the radius of curvature and the forming position of the joining concave portion or the joining convex portion are also appropriately changed.

The block of the embodiment shown in FIG. 2 is a block having a cubic shape or a rectangular parallelepiped shape in which the front surface portion and the lower end surface portion are formed in the same circular arc surface. A projecting portion 3 is provided on the lower end surface. The radius of curvature of each arc surface of the joining concave portion 2 and the joining convex portion 3 is the same. In the case of kneading, the radius of curvature of the arcuate surface of the joining projection 3 is set to be shorter than the radius of curvature of the arcuate surface of the joining recess 2 by the thickness of the joint mortar.

A flat surface portion 1b is provided on the rear side of the joining concave portion 2 and a flat surface portion 1d is provided on the rear side of the joining convex portion 3. In these flat surface portions, the upper block 1 is the lower block. It does not become an obstacle when it tilts and rotates to the front side in the vertical plane with respect to 1.

In the embodiment shown in FIG. 3, the overall shape of the block 1 is a cylindrical body having an opening in the center of the upper surface in a laterally long direction, and the recess 2 for joining has an edge of an arcuate section in vertical section. The surface 1e and 1f, the joining projection 3 is formed by the lower surface portion of the block 1 itself, and the edge surface 1e,
The radius of curvature of the arc surface including 1f matches the radius of the entire block 1.

In this embodiment, the front portion 12 of the block 1 is
A through hole 15 is provided in the through hole 15, and the through hole 15 can be used for a vegetation space, drainage and the like. A stopper 16 for preventing excessive rotation may be provided in front of and behind the joining convex portion 3. A communication opening 8 is provided in the wall portion of the joining convex portion 3.

In the embodiment shown in FIG. 4, the overall shape of the block 1 is a hollow sphere in which the upper central portion and the central portions of the left and right side surfaces are cut open into a spherical shape, and the recessed portion 2 for joining is the upper cut portion. Is formed by the spherical edge surface 1g, and the protrusion 3 for joining is formed by the lower central portion of the block 1 itself.
The radius of curvature of the spherical edge surface 1g matches the radius of the entire block 1. In the case of kneading, the radius of curvature of the joining convex portion 3 is shorter than the radius of curvature of the joining concave portion 2 by an amount corresponding to the thickness of the joint mortar.

The radius of curvature of the spherical edge surface 1h of the side surface incision matches the radius of the entire block 1, and the central portion of the other side surface of the block 1 adjacent to the left and right is rotatable. Mating. The block 1 is provided with a through hole 15 that can be used for a vegetation space and drainage. In the case of kneading, the radius of curvature of the spherical edge surface 1h is longer than the entire radius of the block 1 by the thickness of the joint mortar. According to this example, a wall body constructed of natural cobblestone can be obtained.

In each of the embodiments, in order to more efficiently stack the blocks along the lines of force, it is possible to place angle scales or the like on the side surfaces of the blocks in order to accurately know the relative displacement between the blocks.

[0030]

As described above, in the wall body building block of the present invention, after the blocks 1 and 1 are stacked, the joining recess 2 is formed.
And so that the lower block 1 can rotate to the front side within the vertical plane with respect to the lower block 1 about the joining convex portion 3.
The joining concave portion 2 and the joining convex portion 3 each having an arcuate longitudinal cross section are provided in the middle portion of the width of the block 1 in the front-rear direction, and are joined to the flat surface portion 1b on the rear side of the joining concave portion 2 When the flat surface portion 1d on the rear side of the convex portion 3 is substantially in contact with each other, a play gap is created between the flat surface portion 1a on the front side of the concave portion 2 for joining and the flat surface portion 1c on the front side of the convex portion 3 for joining. Since the arrangement angle of the surface portion is set, by arranging the front surface of the upper block 1 with respect to the front surface of the lower block 1 below by one step or two steps or more, the longitudinal centerline of the wall becomes the force line. The blocks can be stacked so that they match or are sufficiently close to each other, and a wall body that is excellent in both stability and aesthetics can be accurately and easily constructed.

As described above, it is easy to substantially match the longitudinal centerline of the wall with the force line, and sufficient stability can be ensured. Therefore, only for ensuring the stability of the wall. It is not necessary to set the slope of the wall gently, the effective use area of the ground following the top and the ground following the foundation can be increased, and a higher wall can be constructed.

Further, in the wall body building block of the present invention,
As described above, the joining concave portion 2 and the joining convex portion 3 are provided over the entire width in the front-rear direction, and the front side of the joining concave portion 2 and the joining convex portion 3 impedes the rotation of the upper block 1 to the front side. Since there is no protrusion, the adjustment range of the arrangement angle of the upper and lower blocks becomes relatively wide, and various wall bodies can be easily constructed by one type of block.

Furthermore, in the wall body building block of the present invention, since the front surface portion 12 of the block 1 is formed in an arcuate surface continuous with the joining convex portion 3, what is the upper block 1 relative to the lower block 1? Even if it occupies a different angular position, the front surface portion 12 of the lower block 1 and the joining projection 3 of the upper block 1
The front side form of the wall formed by the front portion 12 of the upper block 1 is uniform in any area of the wall, and an orderly wall surface can be accurately formed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing types of force lines acting on a retaining wall.

FIG. 2 is a vertical cross-sectional view showing a stacked state of wall body building blocks according to an embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view showing a stacked state of a wall body building block according to another embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view showing a stacked state of blocks for constructing a wall body according to still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wall building block 2 Recessed portion for joining 3 Convex portion for joining 8 Opening for communication 9 Foundation concrete body 10 Recessed portion 12 Front part of block 15 Front opening 16 Stopper 1b Flat surface portion 1d Flat surface portion 1e Incision edge surface 1f Incision Edge surface of part 1g Edge surface of incision part 1h Edge surface of incision part

Claims (1)

[Claims] 1. A joining recess 2 having an arcuate longitudinal cross section in one of the upper end surface and the lower end surface of a block 1 is provided, and a longitudinal cross section in the anteroposterior direction is formed on the other of the upper end surface and the lower end surface of the block 1. An arc-shaped joining convex portion 3 is provided, and the joining convex portion 3 is provided in the joining concave portion 2.
So that the upper block 1 can be rotated in the vertical plane with respect to the lower block 1 with respect to the lower block 1 in the state where the blocks 1 and 1 are stacked by fitting the A wall body building block in which a joining concave portion 2 and a joining convex portion 3 are provided over the entire width in the front-rear direction, and a front surface portion 12 of the block 1 is formed in an arc surface continuous with the joining convex portion 3.