JPH0439874Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to retaining wall blocks that can be stacked with arbitrary curvature in the length direction.

[Prior Art] A retaining wall block is a structure used to stabilize a slope of cutting or embankment.

Conventional retaining wall blocks of this type have protrusions and recesses extending parallel to the length direction that can be fitted onto the top and bottom surfaces of the block in order to ensure stable stacking in the vertical direction. Some have a similar structure.

An example of the above-mentioned conventional retaining wall block is shown in Figures 8 and 9.
As shown in the figure. In FIGS. 8 and 9, reference numeral 10 denotes a block having a substantially rectangular parallelepiped external shape, and this block 10 has a convex portion parallel to the length direction having a semi-cylindrical profile in vertical cross section on its upper surface. A recess 12 is formed on the lower surface at a position corresponding to the projection 11 into which a projection having the same shape as the projection 11 can be fitted. The block 10 is also formed with two holes 13 spaced apart from each other in the vertical direction.

In order to construct a retaining wall using a plurality of blocks 10, a convex portion 11 formed on the upper surface of the block 10 is used.
Then, a method is taken to stack a plurality of blocks 10 in the vertical direction in such a manner that the recesses 12 formed on the lower surfaces of the blocks 10 stacked on top of the blocks fit into each other. By repeating the above steps in the lengthwise direction of the blocks 10, a retaining wall using a plurality of blocks 10 is constructed on a straight line parallel to the lengthwise direction of the blocks 10.

Here, in order to stabilize and fix the retaining wall, when the blocks 10 are stacked, reinforcing reinforcing bars are inserted through the body insertion holes 13.
is filled with concrete, mortar, etc.

[Problems to be solved by the invention] By the way, since the conventional retaining wall block 10 described above has a structure in which the convex portions 11 and the concave portions 12 are parallel to the length direction, the fitting of the convex portions 11 and the concave portions 12 is difficult. Although it is possible to stack them with a slight curvature in the longitudinal direction by taking advantage of the margin of The drawback was that it was difficult.

This idea addresses the problem of how to realize retaining wall blocks that can be stacked with arbitrary curvature in the length direction.

[Means for solving the problem] This invention was made in view of the above-mentioned circumstances, and includes a convex portion with a circular cross-sectional outline on one upper surface or one lower surface of the block body. In addition to providing two locations spaced apart in the direction, protrusions having the same shape as the above-mentioned protrusions can be fitted in two locations on the other upper surface or the other lower surface of the same block body and corresponding to the above-mentioned protrusions. A concave portion is provided, and a convex portion and a concave portion that form a pair with respect to the upper and lower sides,
A through hole is provided in the center of the block body, penetrating the block body vertically and forming openings on the top and bottom surfaces of the block body, respectively, and the two block bodies are joined at each side surface. In this case, a notch is provided on the side surface of the block body to form a through hole having approximately the same shape as the through hole, and a lifting reinforcing bar, a portion of which is exposed within the opening of the through hole, is provided inside the block body. The convex portion and the concave portion are arranged at a distance of L/4 from both side surfaces, assuming that the entire length of the block body is L.

[Function] According to this invention, (a) L/4 is placed on the top and bottom surfaces of the block body from both sides, assuming the overall length of the block body is L.
Since the protrusions and recesses that can fit into each other are arranged at separate locations, these protrusions,
The block bodies are rotatably supported around the recess, and the block bodies can be stacked with arbitrary curvature in the length direction.
Therefore, by using a retaining wall block having the structure shown in this invention, a retaining wall having an arbitrary curvature in the length direction can be constructed.

(b) This block body is provided with through holes that penetrate the block body vertically and form openings on the top and bottom surfaces of the block body, respectively, in the convex portions and concave portions, and in the center of the block body. In addition, since a notch is provided on the side surface of the block body to form a through hole having approximately the same shape as the above-mentioned through hole when the two block bodies are joined on each side, these block bodies When stacked alternately in the vertical direction, these through holes and gaps between adjacent notches are continuous in the vertical direction. Therefore, the retaining wall block can be fixed and reinforced by inserting reinforcing reinforcing bars or the like so as to alternately pass through these through holes and the gaps between adjacent notches.

(c) Since the lifting reinforcing bars, which are partially exposed in the opening of the above-mentioned through-hole, are buried inside, the block body can be transported and installed via these lifting reinforcing bars, which greatly increases efficiency. good. In particular, since the above-mentioned through hole passes through the center of the block body,
The block body is stably held during work via the lifting reinforcing bars.

[Embodiment] FIGS. 1 to 5 are diagrams showing an embodiment of this invention.

In FIGS. 1 to 5, reference numeral 1 denotes a retaining wall block (hereinafter simply referred to as block) having a substantially rectangular parallelepiped shape, and on the upper surface of this block 1, a convex portion 2 having a truncated cone shape is formed. Two locations are formed at regular intervals in the length direction. Further, on the lower surface of the block 1, there are recesses 3 at two positions corresponding to the projections 2, into which projections having the same shape as the projections 2 can fit.
is formed. In the vertical direction of block 1,
Two body insertion holes 4 are formed so as to penetrate through the convex portion 2 and the concave portion 3. Similarly, in the vertical direction of the block 1, a body hole 5 is formed passing through the center of the block 1. A truncated cone-shaped recess 8 is formed in the upper part of the body insertion hole 5, and a lifting reinforcing bar 9 is embedded therein.

This lifting reinforcing bar 9 is formed in a substantially V-shape when viewed from the side, and its center portion is exposed from within the upper end opening of the body insertion hole 5 .

A semi-cylindrical recess 6 is formed on both sides of the block 1 so that a hole having the same shape as the body insertion hole 5 is formed when two blocks 1 are joined at each side. . The surface 7 of the block 1, that is, the side that will be exposed when constructing the retaining wall, is provided with irregularities in the pattern of natural stone (for example, teppei stone).

In addition, the protrusion 2, the recess 3, the body insertion hole 4 penetrating these protrusion 2 and the recess 3, and the body insertion hole 5 located between the convex parts 2 are The relationship is as shown in Figure 1.

That is, the convex portion 2, the concave portion 3, and the body insertion hole 4 that penetrates the convex portion 2 and the concave portion 3 are arranged at a distance of L/4 from the side surface with respect to the entire length L of the block 1, Further, the insertion hole 5 located between the convex portions 2 is located at the center of the block 1 at a distance of L/2 from the side surface with respect to the entire length L of the block 1.

Next, with block 1 consisting of the above structure,
A method for constructing a retaining wall with arbitrary curvature in the length direction will be explained. FIG. 6 is a front view of a retaining wall constructed using block 1 and a plurality of blocks. To construct a retaining wall using blocks 1, first, a plurality of blocks 1 are arranged in a row along a slope with curvature (first row). Next, above this block row, block 1 is shifted in the length direction by a length L corresponding to half of the total length of block 1, and the concave portion 3 of block 1 is replaced by a convex portion 2 on the upper surface of the block row. stacked to fit together. By repeating this process in the lengthwise direction, the row shown in FIG. 6 is constructed above the row. The above steps are in column 1,
It is also repeated when constructing the 6th column,...
A retaining wall as shown in the figure will be constructed on a slope with curvature in the length direction of the block. At this time, blocks 1 are stacked on top of each other in the form shown in FIG.

FIG. 7 is a plan view of block 1 and block 1' stacked on top of block 1 extracted from the retaining wall as shown in FIG. 6.
Considering block 1 as fixed, block 1' is
Since the cross-sectional contours of the protrusion 2 of the block 1 and the recess 3' of the block 1' are circular, it is supported rotatably relative to the block 1 around the fitting portion of the protrusion 2 and the recess 3'. be done. Therefore, block 1'
is rotated and fixed by a predetermined angle according to the curvature of the slope on which the retaining wall is to be constructed, and as a result, a retaining wall with an arbitrary curvature in the length direction can be constructed using a plurality of blocks 1. becomes.

Here, for the purpose of fixing and reinforcing block 1,
When stacking the blocks 1, reinforcing reinforcing bars are inserted through the mounting holes 4, and the mounting holes 4 are filled with concrete, mortar, or the like. For the same purpose, when stacking blocks 1, the holes 5 of blocks 1 and the two adjacent blocks 1
Reinforcing reinforcing bars are inserted so as to alternately pass through the gaps formed by the recesses 6, and these gaps are also filled with concrete, mortar, etc.

As mentioned above, in the above embodiment, the convex part 2 and the concave part 3 have a truncated cone shape, but the convex part and the concave part can be formed into other three-dimensional shapes having a circular cross-sectional outline (for example, a cylindrical shape, a part of a spherical shape, etc.). ), it is possible to construct a retaining wall with any curvature in the same way as above.

Similarly, the concave portions 3 need only have a shape that allows the convex portions 2 to fit therein, and do not need to have the same shape. In other words, if the recesses 3 are shaped like elongated holes extending in the length direction of the block, even if the distance between the protrusions 2 between adjacent blocks changes due to curved construction of the blocks, the distance between the recesses 3 will be able to compensate for this change. It is possible to absorb and build a stable retaining wall.

Note that some concrete blocks have uneven surfaces on their surfaces to prevent glare from reflections from automobile headlights during night and rainy weather. In addition, for the purpose of supporting the constructed retaining wall on a natural slope, the surface 7 is formed with unevenness in a natural stone pattern. To construct a retaining wall with a slope where natural rocks are exposed, as shown in Fig. 6, blocks 1a, 1b, etc., each having a different uneven natural stone pattern on the surface 7, are combined and the above steps are performed. You can construct a retaining wall according to the following.

[Effects of the invention] According to this invention, (a) L/L is formed on the top and bottom surfaces of the block body from both sides, with the overall length of the block body being L.
4. Since the protrusions and recesses that can be fitted into each other are arranged at separate locations, the block body is rotatably supported around these protrusions and recesses, and the block body is rotated in the longitudinal direction. It is possible to stack them with arbitrary curvature. Therefore, by using a retaining wall block having the structure shown in this invention, a retaining wall having an arbitrary curvature in the length direction can be constructed.

(b) This block body is provided with through holes that penetrate the block body vertically and form openings on the top and bottom surfaces of the block body, respectively, in the convex portions and concave portions, and in the center of the block body. In addition, since a notch is provided on the side surface of the block body to form a through hole having substantially the same shape as the above-mentioned through hole when the two block bodies are joined on each side, these block bodies When stacked alternately in the vertical direction, these through holes and gaps between adjacent notches are continuous in the vertical direction. Therefore, the retaining wall block can be fixed and reinforced by inserting reinforcing reinforcing bars or the like so as to alternately pass through these through holes and the gaps between adjacent notches.

(c) Since the lifting reinforcing bars, which are partially exposed in the opening of the above-mentioned through-hole, are buried inside, the block body can be transported and installed via the lifting reinforcing bars, which improves efficiency. Very good. In particular, since the through hole passes through the center of the block body, there is an advantage that the block body can be stably held during work using the lifting reinforcing bars.

[Brief explanation of the drawing]

Fig. 1 is a front view of a retaining wall block shown as an embodiment of this invention, Fig. 2 is a plan view of the block, Fig. 3 is a side view of the block, and Fig. 4 shows the main parts of the block. 5 is a front sectional view taken along line A-A in FIG. 2, FIG. 6 is a diagram showing an example of a retaining wall constructed by the same block, and FIG. 7 is a top and bottom view of the same block. FIG. 8 is a front view showing an example of a conventional retaining wall block, and FIG. 9 is a side view of the same block. 1...Block (block body), 2...Protrusion,
3... Recessed portion, 4... Body insertion hole, (through hole), 5... Body insertion hole (through hole), 6... Recessed portion (notch), 8... Recessed portion, 9... Lifting reinforcing bar.

Claims (1)

[Claims for Utility Model Registration] On one top surface or one bottom surface of the block body,
Two convex portions having a circular cross-sectional outline are provided at intervals in the length direction, and the convex portions are provided at two positions corresponding to the convex portions on the other upper surface or the other lower surface of the block main body. A concave part is provided in which a convex part having the same shape as the part can be fitted, and inside the convex part and the concave part, which form a pair with respect to the top and bottom,
A through hole is provided in the center of the block body, penetrating the block body vertically and forming openings on the top and bottom surfaces of the block body, respectively, and the two block bodies are joined at each side surface. In this case, a notch is provided on the side surface of the block body to form a through hole having approximately the same shape as the through hole, and a lifting reinforcing bar, a portion of which is exposed within the opening of the through hole, is provided inside the block body. A retaining wall block, characterized in that the convex portion and the concave portion are located at a distance of L/4 from both side surfaces, where L is the entire length of the block body.