JPH0352826Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The invention is a block that is stacked on a retaining wall.
This invention relates to blocks for a retaining wall that can be made into a strong retaining wall without disengaging the engagement between the projections on the upper surface and the grooves of the upper block even when the blocks are piled up in a curved shape.

``Prior art'' This type of block has a rectangular protrusion on the upper surface and a corresponding rectangular recess on the lower surface, and in order to stack the blocks, the protrusions and recesses of the upper and lower blocks are fitted together. There are some types of blocks that are raised up, or that have protrusions on the top surface and grooves on the corresponding bottom surfaces, and are stacked by fitting the protrusions and grooves of the upper and lower blocks in masonry. Was.

``Problems to be solved by the invention'' The above-mentioned conventional block has concave portions and grooves on the bottom surface corresponding to the protrusions and ridges on the top surface, and when these are fitted together, the blocks are identical to the adjacent block. If blocks are stacked on a flat surface and adjacent blocks are stacked at a certain angle, the protrusions on the top surface,
The protrusions are removed from the recesses and grooves on the lower surface, and the protrusions and protrusions are located in positions other than the recesses and grooves, and the blocks cannot be engaged vertically when viewed from the front, resulting in unevenness and inconvenience. Moreover, if the protrusions and ridges were out of place in the recesses and grooves on the upper and lower levels, it would be vulnerable to earth pressure from the back, and could not be used as a strong retaining wall. Construction of retaining walls is not always limited to straight lines; when constructing curved walls, the only option is to use cast-in-place concrete.

"Means for Solving the Problem" Therefore, the present invention was proposed to solve the above-mentioned inconvenience, and its configuration is to provide conical protrusions on the left and right sides of the front upper surface of the main body, and to correspond to the above-mentioned problems. A horizontal groove with a width that allows the projection to engage is provided on the front lower surface of the main body. Place the block in this way across the two protrusions of the lower block.
It is constructed by stacking the blocks one after another so that the grooves of the blocks fit together, but since the protrusions are conical, they can be used at any angle, and the grooves are wide enough to fit the protrusions. Therefore, even if adjacent blocks are stacked at a certain angle, they will not come off, and they can be stacked on any curved part, making it possible to quickly create a strong retaining wall.

Its structure will be explained with reference to the drawings. 1 is the main body of the block, and shallow vertical grooves 2 are formed on both sides of the block, and the width at the rear is slightly narrower than the width at the front. 3 is a vertical through hole, and the through hole 3 tapers slightly in the center. 4 is a concave portion in the horizontal direction of the upper surface. Reference numeral 5 denotes truncated conical projections provided on the left and right sides of the front side of the upper surface. Reference numeral 6 denotes a groove provided in the lateral direction on the lower surface corresponding to the projection 5, and the width thereof is large enough to fit the projection 5 therein. 7 is a vertical groove 2,
This is the inwardly sloping portion of the outer lower end of No. 2. 8 is basic,
9 is concrete or gravel. 10
is backfilled with chestnut stone and earth and sand. In addition, even if the block has a longer depth of the main body 1 as shown in FIG. 6, the protrusions 5 and grooves 6 can be used together to support the block by keeping the protrusions 5 and grooves 6 at the same position from the front. walls can be constructed.

"Function" Since the present invention has the structure described above, the basic 8
When a lower stage is formed by butting the sides of a large number of blocks on top, and then the upper stage is placed across the two lower blocks, the grooves 6 of the upper block fit into the protrusions 5 of the two lower stages. They can be combined and stacked as shown in Figure 4. Then, there is a recess 4 on the top surface of the block.
When a through hole 3 is provided, reinforcing bars are placed in the recess 4, the through hole 3 is filled with body fill 9, and the back side of the block is filled with back fill 10.

``Effect of the invention'' As described above, in the invention of the present invention, the lower tier blocks are lined up side by side with their sides aligned, and then the upper tier is placed astride the two lower tier blocks, and in the same way as the lower tier, When the blocks are lined up side by side so that their side faces abut, the protrusions 5 and grooves 6 fit together, allowing them to be stacked on the same surface, allowing quick construction. In the device of the present invention, the upper and lower blocks have protrusions 5 and grooves 6.
Because of this, even when stacking with a curved front surface as shown in Figs. 7 and 8, the protrusions 5, 5 will not come off the grooves 6 of the upper block, making stacking easier. It is possible to create a strong retaining wall similar to that of conventional block-like uneven engagement, and it also eliminates the inconvenience of constructing the curved part of the conventional retaining wall by casting on site. be effective.

In addition, there are vertical grooves 2, through holes 3,
By providing the recess 4, the concrete filled in the body 9 or the earth and sand can resist earth pressure and prevent the block from protruding, and if reinforcing bars are installed, an even stronger retaining wall can be created. It can be done. Further, by providing the inclined portion 7 at the lower end of the vertical groove 2, it is possible to easily fill the shell 9 with concrete or earth and sand, and to prevent the formation of voids.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is a perspective view of the block of the present invention, Fig. 2 is a sectional view taken along line AA in Fig. 1, Fig. 3 is a sectional view taken along line BB in Fig. 1, and Fig. 4 is a construction state in which blocks of the invention are stacked up. , Figure 5 is a sectional view taken along the line C-C in Figure 4, Figure 6 is a sectional view of a construction state in which blocks of different depths are stacked together, and Figures 7 and 8 are a curved construction state. FIG. 1...main body, 5...protrusion, 6...concave groove.

Claims (1)

[Scope of utility model registration request] Conical projections 5, 5 on the left and right sides of the front upper surface of the main body 1
A retaining wall block characterized in that a horizontal groove 6 having a width that allows the projection 5 to engage is provided on the front lower surface of the main body 1 corresponding to the main body 1.