JPH0262649B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for assembling multi-stage concrete blocks for constructing a concrete retaining wall using a large number of concrete blocks, and more specifically, to This invention relates to a method for assembling multi-stage concrete blocks consisting of foundation stone concrete blocks arranged in parallel in the lower tier and basic concrete blocks stacked on top of the blocks.

(Prior art) When constructing a retaining wall by stacking concrete blocks in a so-called valley stack, four corners of each concrete block are butted against each other, so-called four-way stacking is considered to be a defective stack (cited document: Civil Engineering Handbook (Published by Gihodo, page 1607, left column).

(Problem to be solved by the invention) There is a so-called self-supporting and stable construction method in which the butt ends of the concrete blocks are stacked vertically from the base stone block, which avoids the fourth problem. do not.

The present invention avoids stacking two or three concrete blocks together and butts them together, and also by using the upper surface of the butt end of the root stone block,
The problem that the invention seeks to solve lies in constructing a retaining wall having a self-supporting and stable structure by supporting the butt end of the upper concrete block.

(Means for solving the problem) The front face of the block body 1 is formed into a substantially pentagonal shape,
Moreover, on the back side of the block body 1, there is a tapered retainer 2.
A concrete foundation block A is provided with a protruding structure, and the rear part of the block 2 is bulged into a vertically elongated rectangular shape to form a block end 3. It consists of a basic concrete masonry block B with a retainer having a substantially triangular cross section protruding from the back side, and a retainer end 4 whose cross section bulges outward at the rear of the retainer, and By supporting the butt end 4 of the basic concrete masonry block B in contact with the butt end 3 of the foundation stone concrete masonry block A, a valley-pile retaining wall is constructed that has a self-supporting and stable structure while avoiding the fourth part. It can be done.

(Operations and Embodiments) The operations and embodiments of the present invention will be described based on FIGS. 1 to 13.

Figures 1 to 8 show an embodiment of a concrete foundation block A, in which the front of the block body 1 is formed into an approximately pentagon that is a combination of a horizontally long rectangle and an isosceles triangle, and the upper surface of one of the oblique sides Projection 1'
is provided protrudingly, and a groove 1'' is provided on the upper surface of the other oblique side.

Next, a tapered retainer 2 with a hexagonal cross section is protruded from the side of the back of the block body 1, and a vertically elongated rectangular shape is provided at the rear of the retainer 2, and an upper portion closer to the side is provided at the rear of the block body 1. A buttock 3 with a notch 3' at the corner
are integrated.

Figure 9 shows other concrete foundation blocks.
An example of A' is shown, and the vertical side of the block body 1 is
It is longer than the standard type concrete stone block A shown in Fig. 1. This concrete foundation block A' is used when adjusting the height of the retaining wall.

FIG. 10 also shows another embodiment of the concrete-stone block A'', in which the vertical sides of the block body 1 are formed short, so that the height of the retaining wall can be adjusted low.

Figures 11 to 13 show an example of a method of combining multi-stage concrete blocks, in which the foundation stone concrete block A is placed at the lowest stage of the retaining wall.
are arranged in parallel.

Next, the front face of the block main body has a horizontally long rectangular shape, and a protrusion 5 and a groove 6 are provided on the side end face, and a retainer having a substantially triangular cross section is protruded from the back face of the block main body. A basic concrete block B, which has a cross section bulging outward and a butt end 4 with each corner cut out to form a chamfered part, protrudes from the rear part of the base concrete block A... The desired number of stages are stacked on top.

At this time, the grooves 6 and grooves 5 of the basic concrete block B fit into the grooves 1' and grooves 1'' provided on both oblique sides of the concrete block A, and the grooves 6 and grooves 5 of the concrete block A are fitted. The chamfered portion of the butt end 4 of the basic concrete block B is supported by the upper surface of the butt end 3.

In addition, the upper basic concrete blocks B... are also stacked by turning each one 90 degrees, so that the chamfered parts of the butt ends 4 are in contact with each other and are continuous, and the blocks A of the basic concrete blocks A are stacked. They are stacked vertically with the butt 3, making the entire retaining wall a self-supporting and stable structure.

In this combination, at the top of the retaining wall, a top concrete block C, which has a shape that is an inversion of the block body 1 of the concrete foundation block A, is installed, and on both sides of the retaining wall, that is, the concrete foundation block C is installed. Between block A and basic concrete block B, or between basic concrete block B and top concrete block C, there is
The block main body 1 of A'' is laid with a side concrete masonry block D interposed in the shape tilted 90 degrees.

In addition, when a corner concrete block E is laid at the corner of the retaining wall, and a root concrete block A and a side concrete block D are laid at the corner of the retaining wall, or when a side concrete block D is laid at the corner of the retaining wall, When block D and crown concrete block C are assembled, a void is created at the bottom or top, so correction concrete blocks F and F' are laid to fill the void.

At this time, the butt ends of each concrete block are connected vertically, making the entire retaining wall a self-supporting and stable structure.

(Effect of the invention) The upper surface of the backing end 3 of the concrete foundation block A is the same as the backing end 4 of the basic concrete building block B.
By supporting the chamfered portions, a self-supporting and stable structure is formed in which the butt ends 3 and 4 are connected vertically, and the protrusion 1' and the groove 6 and the groove 1'' and the protrusion 5 are fitted into the grooves and grooves, respectively. Because they fit together, a strong retaining wall can be constructed.

Note that a notch 3' provided at the upper corner of the lateral side of the backing heel 3 prevents contact with the backing end of other blocks, and allows the blocks to be stacked above or below the backing end of any block.

Furthermore, since the cross-sectional shape of the retainer is an elongated hexagon and a substantially triangular shape, and the retainer ends 3 and 4 are shaped to bulge out from each retainer, when the body filling material surrounds the retainer, it moves forward and backward. In addition to being stable and firm, the filling material is filled vertically and continuously behind the retaining wall, solidly reinforcing almost the entire rear surface of the retaining wall.

Further, if the block is held by the retainer which is thinner than the block body 1, it is convenient to carry and install the block, and the work can be carried out safely without the risk of pinching and injuring fingers. Furthermore, as shown in Fig. 14, a large number of concrete foundation blocks A, A', and A'' can be turned upside down and loaded compactly and neatly, and the load will not collapse during transportation or storage. It is safe and does not require additional stock space.

As described above, the present invention is a useful invention that has a robust structure, is easy to manufacture, has good workability, and is inexpensive.

[Brief explanation of the drawing]

Figure 1 is a front view showing an example of a concrete foundation block, Figure 2 is a rear view, Figure 3 is a plan view, Figure 4 is a bottom view, Figure 5 is a left side view, and Figure 6 is a left side view. The figure is a right side view, FIG. 7 is a sectional view taken along line A-A in FIG. 5, and FIG.
A sectional view taken along line B, FIGS. 9 and 10 are front views showing other embodiments, FIG. 11 is a front view showing a combination method, FIG. 12 is a rear view of the same, and FIG. FIG. 12 is a cross-sectional view taken along the line A-A, and FIG. 14 is a cross-sectional view showing a state in which two concrete blocks are piled up. 1... Block main body, 2... Back, 3, 4... Back end, A... Concrete foundation block, B...
...Basic concrete block.

Claims (1)

[Claims] 1. The front face of the block main body 1 is formed into a substantially pentagonal shape, and a tapered retainer 2 is protruded from the back surface of the block main body 1, and the rear part of the retainer 2 is bulged into a vertically elongated rectangular shape to form a retainer end 3. The front face of the block body is formed into a square shape, and the back side of the block body is provided with a protruding support having a substantially triangular cross section, and the rear part of the support is Butt butt 4 whose cross section bulges outward
The basic concrete block B is provided with a basic concrete block B, and the back end 4 of the basic concrete block B comes into contact with and is supported by the back end 3 of the foundation stone concrete block A, so that it becomes self-supporting. A method for assembling multi-stage concrete blocks.