JPH0351380Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) This invention is particularly useful when constructing retaining walls for general earth retaining and waterside revetments. Regarding retaining wall blocks.

(Conventional technology) Traditionally, retaining walls for roads, railways, dams, etc.
We use various types of retaining walls to construct earth retaining walls for parks, recreational facilities, etc., earth retaining walls for housing lots, factories, land reclamation, etc., as well as retaining walls for urban rivers, irrigation canals, and bank retaining walls for dams, lakes, and water storage areas. A wall structure is used.

One of these is a retaining wall made by stacking blocks each having a soil storage area that allows planting, such as the vegetation retaining wall block disclosed in Japanese Utility Model Publication No. 12048/1983. The main body is formed from a cylindrical body that is approximately fan-shaped when viewed from above, and the main body is stacked one after another in a brick-like manner, gradually shifting upwards and toward the back, and the plants are stored in the soil storage area of the main body space. Appropriate planting is done in the soil.

(Problems to be Solved by the Invention) Such conventional blocks have a substantially fan-shaped plane, are large, and bulky in terms of weight, making it difficult to move them manually. Therefore, a crane is used to align and stack them one by one from the bottom, which requires a great deal of labor and expense. In addition, since the necessary use of a crane requires the crane to be brought in and installed at the construction site, it has been practically impossible to construct retaining walls in locations where this crane cannot be installed.

Furthermore, since the shape is complex, the construction of the formwork is troublesome, and manufacturing at the construction site is also time-consuming.

Therefore, this idea was created in consideration of the existing circumstances,
It was devised to eliminate this drawback; it has a cylindrical shape and can be moved manually by rolling, making it easier to handle and not only making transportation and construction more efficient. To provide a vegetation retaining wall block that can be easily manufactured even at civil engineering sites.

[Structure of the invention] (Means for solving the problem) In order to achieve the above-mentioned purpose, this invention forms a cylindrical block main body with a circular plane, and the lower end of this block main body has a , when the block bodies themselves are stacked vertically in a brick-like manner and shifted toward the back, the first positioning engagement at one wide place into which the total pair of cylindrical walls of each adjacent block body is fitted A recess is provided, and
It is also characterized in that a narrow second alignment and engagement recess into which a block-based cylindrical wall is fitted is provided in a position symmetrical to the first alignment and engagement recess.

(Function) In the vegetated retaining wall block according to this invention, a large number of block bodies are stacked vertically in the shape of brickwork and are stacked while being shifted toward the back to form a retaining wall.

At this time, one wide first positioning and engaging recess is fitted into a total of a pair of cylindrical walls of each of the adjacent block main bodies located at the lower stage, while the first positioning and engaging recess is The narrow second positioning and engaging recesses provided at symmetrical positions are also fitted into one cylindrical wall of the block main body to ensure and maintain the vertical alignment of the block main body. do.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

Reference numeral 1 shown in the figure is a cylindrical block main body 1 having a circular plane. For example, the outer diameter is 470 mm, the inner diameter is 400 mm, the wall thickness is 35 mm, and the height is 350 mm.
It has a weight of 1 kg, and the outer edges of the upper and lower ends are chamfered.

At the bottom of this block body 1, there is a block body 1.
When the blocks are stacked vertically in the form of brickwork, a wide first alignment and engagement recess 2 into which a total of a pair of cylindrical walls of each adjacent block main body 1 is fitted.
Provided in one place. Similarly, at the lower end of the block main body 1, a narrow second alignment engagement recess 3 into which one cylindrical wall of the block main body 1 is fitted when the block main bodies 1 themselves are stacked in the vertical direction is provided.
A total of two locations will be provided in pairs on the left and right. The first positioning/engaging recess 2 and the second positioning/engaging recess 3 are symmetrical with respect to the first positioning/engaging recess 2 provided at one location, and are arranged at a second position. The alignment and engagement recesses 3 are arranged on the left and right sides respectively, and in the illustrated example, the second alignment is made at the center of the block main body 1 at an angle of about 103° with respect to the first alignment and engagement recess 2. An engagement recess 3 is provided.

The first positioning and engaging recess 2 and the second positioning and engaging recess 3 are connected to the block main body 1 disposed below.
Ensure reliable alignment and engagement when stacking on top of each other. For example, the depth is 20 mm, the width of the first positioning and engaging recess 2 is 100 mm, and that of the second positioning and engaging recess 3 is 80 mm.

Further, when the block bodies 1 are stacked in a brick-like manner, adjacent block bodies 1 are firmly connected to each other by fastening means 4 such as bolts and nuts. Therefore, a through hole 5 for a bolt is bored in each of the abutting portions of the adjacent block main bodies 1.

This idea is constructed as described above, and during construction, as shown in Figures 1 and 3, the blocks are stacked like brickwork, and the blocks 1 placed adjacent to each other at the bottom are stacked. In the upper row, they are offset in the adjacent direction by 1/2 the width of the block body 1, and are also shifted in the back direction by 1/2 the depth of the block body 1 (see FIG. 4).

At this time, the block main body 1 in the upper stage has the first alignment engagement recess 2 at its lower end straddling the cylindrical walls of a total of a pair of adjacent block main bodies 1 in the lower stage, and the block main body 1 in the second position Similarly, the mating and engaging recesses 3 are fitted into the cylindrical wall of each block main body 1.

Next, the rear of the stacked block bodies 1 is filled with soil and compacted to form a retaining wall to support them, and planting soil is accommodated in the hollow part inside the block bodies 1 and suitable planting is done.

In addition, the hollow part inside the block main body 1 is filled with concrete and solidified to form a concrete retaining wall, and the filling with chestnut stone improves drainage in areas where there is a lot of spring water. Even in places where there is a lot of water, the water inside the block body 1 can be removed and then filled with concrete or gravel.

[Effect of the invention] Therefore, this invention forms a cylindrical block main body 1 with a circular plane, and at the lower end of this block main body 1, the block main body 1 itself is vertically brick-like and When stacked while being shifted toward the back, one wide first positioning and engaging recess 2 into which a total of a pair of cylindrical walls of each adjacent block main body 1 is fitted is provided; Since the narrow second positioning and engaging recess 3 into which the cylindrical walls are fitted is provided in a symmetrical position with respect to the first positioning and engaging recess 2, it is possible to achieve a reduction in weight and size. Therefore, it can be constructed manually on site without using a crane.

Moreover, since the block main body 1 itself has a cylindrical shape with a circular plane, it can be rolled using its curved peripheral surface, making it easy to move to a predetermined position on site. Furthermore, since no complicated formwork structure is required during on-site manufacturing, it can be manufactured easily and at low cost.

Furthermore, when stacking blocks in the vertical direction, a total of a pair of cylindrical walls of adjacent block bodies 1 in the stacking direction are fitted into one wide first positioning and engaging recess 2 at the lower end of the block bodies 1. On the other hand, the two second positioning and engaging recesses 3 at narrow symmetrical positions fit one cylindrical wall of the block main body 1, so by aligning and engaging them, the entire It can be assembled and, as a result, is extremely easy to work with, is robust after being fitted, and has little risk of collapse.

Since the block body 1 itself is hollow inside, it can be filled with planting soil and planted with appropriate plants, thereby making it a green retaining wall.
It has an elegant appearance, and since a curved arc surface is formed in front of the retaining wall, it is useful for reducing the flow velocity when used for river bank protection.

As explained above, according to this invention, it has a cylindrical shape that can be moved manually by rolling, making it easy to handle, efficient in transportation and construction, and easy to use at civil engineering sites. It has excellent practical effects, such as being able to be manufactured in a number of ways.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
2 is a perspective view of the device in use, FIG. 3 is a plan view of the device in use, and FIG. 4 is a sectional view of the device in use. 1...Block main body, 2...First alignment and engagement recess, 3...Second alignment and engagement recess, 4...
Fastening means, 5... penetration hole.

Claims (1)

[Claims for Utility Model Registration] 1. When a cylindrical block main body with a circular plane is formed, and the block main body itself is stacked vertically in a brick-like manner and shifted toward the back at the bottom end of the block main body. A wide first positioning and engaging recess is provided in which a pair of cylinder walls of each adjacent block main body are fitted, and a narrow first positioning and engaging recess into which a pair of cylinder walls of the block main body is fitted is also provided. A vegetation retaining wall block characterized in that the second positioning and engaging recess is provided in a position symmetrical to the first positioning and engaging recess. 2. The vegetation according to claim 1, wherein the second positioning and engaging recess is provided at an angle of about 103° from the center of the block main body with respect to the first positioning and engaging recess. Retaining wall block.