JPH07113239B2 - 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 building block that can be piled up on a slope of a mountainous area or a residential land. It is designed to be solidly constructed.

[0002]

2. Description of the Related Art It is very common to build a retaining wall by stacking building blocks for the purpose of preventing landslides on slopes when constructing roads and tracks in mountainous areas, slopes when constructing residential land, etc. In the case of stacking blocks with vertical reinforcing bar holes on the left and right, most of them are cloth stacked, and the blocks located on the upper side and the blocks located on the lower side are left and right only half the width. By shifting the position, the vertical reinforcing bars are inserted through the reinforcing bar holes of each block communicating in the vertical direction, and concrete is filled and hardened.

The construction block disclosed in Japanese Utility Model Publication No. 63-23473, which has been proposed by the present inventor, is an example of the concrete block that can be stacked and has left and right side edges. It is effective in that it can be constructed extremely firmly when piled up, by constructing the reinforcing bar holes for inserting the vertical reinforcing bars on the left and right at a position of 1/4 of the lateral width.

[0004]

However, depending on the construction site where blocks are stacked on the slope to form a retaining wall, the slope may reach a height of 20 m or more,
Especially in such a site, the load of earth pressure from the slope acting below the retaining wall becomes extremely large. In addition, for example, when the soil is a soft slope, a large collapse of the slope or the flow of earth and sand may cause a large earth pressure on the retaining wall of the block from the slope.

Therefore, if the upper and lower parts of the stacked blocks are connected only by thin vertical reinforcing bars, there is a great concern about the strength of the lower part of the retaining wall where a large earth pressure load from a large slope acts. It is left behind and in extreme cases there is a risk of collapse of the entire retaining wall.

[0006]

The present invention has the above-mentioned drawbacks,
It was proposed to solve the problem, and at the front part of the block body, rebar insertion holes are drilled left and right along the longitudinal direction, and at the rear of the above-mentioned rebar insertion holes of the block body, the opening is made. Provided is a building block in which a rebar cage insertion hole having a width larger than that of the above-described rebar insertion hole is vertically formed, and a horizontal rebar groove portion is provided along the horizontal direction on either the upper surface or the lower surface of the block body. To do.

[0007]

Therefore, when the block main bodies are arranged vertically and stacked, the positions of the reinforcing bar insertion holes of the vertically adjacent block main bodies are aligned and the reinforcing bar insertion holes of the respective block main bodies communicate with each other, so that the vertical reinforcing bars are inserted. Since at the same time, the reinforcing bar cage insertion holes of each block are also communicated, it is possible to insert a stronger reinforcing bar cage into the reinforcing bar cage insertion hole whose opening width is larger than that of the reinforcing bar cage hole. The strength of the retaining wall constructed by the main body can be significantly increased.

[0008]

Embodiments of the present invention will be described below in detail with reference to the embodiments of the drawings. Concrete block body 1
Is a thick plate in the vertical direction with a decorative pattern 2 on the surface, and has a pair of reinforcing bar insertion holes 3 formed in the vertical direction on the left and right of the front portion at a predetermined interval. Rebar insertion hole 3
The planar shape is an elliptical shape that is a long hole along the lateral width direction of the block body 1. When the block bodies 1 are vertically stacked, the reinforcing bar insertion holes 3 of the vertically adjacent block bodies 1
Since they are communicated in series, it is possible to insert the vertical reinforcing bars 4 to fill mortar or concrete and cure and cure. Therefore, both the reinforcing bar insertion holes 3 are substantially centered from the side end of the block main body 1 by a length of 1/4 of the lateral width of the block main body 1, and the distance between the centers of the left and right reinforcing bar insertion holes 3 is long. The width is half the width of the block body 1.

The block body 1 has a width of 100 to 180 cm, a height of 50 to 100 cm, a depth of 40 to 120 cm, and a weight of about 2 tons. All are piled up using cranes.

Then, the block main body 1 is provided with a reinforcing bar cage insertion hole 5 so as to be positioned behind the above-mentioned left and right reinforcing bar insertion holes 3. This rebar cage insertion hole 5 has a larger opening width than the rebar insertion hole 3 described above, and, like the rebar insertion hole 3, from the side end of the block body 1 to the block body 1
It is preferable that two holes are provided on the left and right sides so that the substantially center is located in a length corresponding to a quarter of the lateral width. Therefore, when the block main bodies 1 are stacked in the vertical direction, the reinforcing bar basket insertion holes 5 of the vertically adjacent block main bodies 1 communicate with each other.
It is possible to mount the rebar cage 6 on, and fill it with mortar or concrete to cure and harden it.

However, the rebar cage insertion hole 5 of the block body 1
Is not necessarily limited to the above-described configuration. For example, from one side end of the block body 1 to the block body 1
1 so that the approximate center is located in a quarter of the width of
You may drill only one piece. In this case, if the reinforcing bar basket insertion member 5 is arranged on the left side of the block body 1, each block main body 1 adjacent to the upper left half and the lower left half has the reinforcing bar insertion hole 5 on the right side. Since the rebar cage insertion holes 5 of the upper and lower block bodies 1 communicate in series, the rebar cage 6 can be mounted. In extreme cases,
Only one rebar cage insertion hole 5 is formed in the center of the width of the block body 1 and the block body 1 is vertically stacked. You may.

The above-mentioned reinforcing bar cage 6 is of a vertical cage shape in which a plurality of vertical reinforcing bars arranged in parallel are connected by horizontal loop-shaped reinforcing bars by welding or the like, and has a remarkably high strength.

On the upper surface of the block body 1,
Protrusions 7 are provided in the entire length of the lateral width at positions corresponding to the reinforcing bar insertion holes 3 on the left and right, and fitting grooves 8 are provided in the entire length of the lateral width on the lower surface corresponding to the protrusions 7. Therefore, when the block main bodies 1 are vertically stacked, the protrusion 7 of the block main body 1 located on the lower side is fitted into the fitting groove 8 of the block main body 1 located on the upper side, and the stacking strength of the upper and lower block main bodies 1 is increased. be able to.

Further, on the upper surface of the block body 1, a plurality of transverse reinforcing bar groove portions 9 are formed at the positions of the reinforcing bar cage insertion holes 5. The horizontal reinforcing bar groove 9 is for housing the horizontal reinforcing bar 10 when the block main bodies 1 are stacked.

Further, the lower surface of the block body 1 is provided with a recess 11 at an appropriate position. This concave portion 11 is the block body 1
This is to allow the tip of the lever to be inserted when the position is finely changed when it is lifted by a crane or the like and installed at a predetermined position.

6 and 10 show a slope a in a mountainous area or the like.
2 shows a state in which the block main body 1 is laid up and constructed to form the retaining wall b. In consideration of the stability against a load such as earth pressure, the present invention having a large depth width below the retaining wall b. The block main body 1 is placed, the block main body having a smaller depth width is stacked toward the upper side, and the block main body 1 without the reinforcing bar basket insertion hole 5 is stacked near the upper end.
As shown in FIG. 7, a block main body in which the reinforcing bar insertion holes 3 are provided at left and right and front and rear at a total of four positions may be used.

Concrete or mortar is filled in the reinforcing bar insertion hole 3 after inserting the vertical reinforcing bar 4 or the reinforcing bar insertion hole 5 after inserting the reinforcing bar cage 6 to cure and cure. Further, the horizontal reinforcing bars 10 may be housed in the groove portions 9 for the horizontal reinforcing bars between the block main bodies 1 stacked up and down and filled with mortar or concrete to enhance the strength of the upper and lower block main bodies.

The present invention has been described above based on the embodiments of the drawings. However, the present invention is not limited to the above-mentioned embodiments, and may be modified in any manner as long as the configuration described in the claims is not changed. It can be carried out. For example, in FIG.
As shown in FIG. 1, the rebar cages 6 are not provided for each block body 1 or on the left and right sides of each block body 1, but for each of several block bodies arranged in the horizontal direction, one is attached to each. Alternatively, the reinforcing bar cage 6 may be attached to a part of the block main body below the retaining wall b to be constructed, and the block main body without the reinforcing bar cage insertion hole 5 may be used above. They are,
It may be determined at the design stage according to the required strength of the retaining wall and the expected strength of the slope a.

[0019]

In summary, according to the present invention, in the front portion of the block main body, the reinforcing bar insertion holes are formed left and right along the longitudinal direction, and the block main body is opened at a position rearward of the above-mentioned reinforcing bar insertion holes. Reinforcing bar basket insertion holes having a width larger than the above-mentioned reinforcing bar insertion holes are provided in the vertical direction, and horizontal reinforcing bar grooves are provided along the horizontal direction on either the upper surface or the lower surface of the block body. . Therefore, the block of the present invention is arranged below the retaining wall constructed with the block, vertical reinforcing bars are inserted into the reinforcing bar insertion holes, concrete is inserted through the reinforcing bar insertion holes through the longitudinal reinforcing bars, and each is hardened. When the horizontal reinforcing bars are stored in the horizontal reinforcing bar groove for each block,
The lower part of the retaining wall is extremely reinforced. Moreover, because of its height and width, even on a slope where a large load is applied to the lower part, or when the soil on the slope is soft and easily collapses,
The retaining wall can be reliably and firmly laid and constructed with sufficient strength to withstand loads such as earth pressure. Moreover,
As in the conventional construction of the retaining wall, the block body is transported by a crane etc. and the vertical reinforcing bars are inserted into the reinforcing bar insertion holes, and the reinforcing bar baskets are inserted into the reinforcing bar cage insertion holes, so the construction work is good and simple, Moreover, it has no danger and has excellent effects.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a block body of the present invention.

FIG. 2 is a plan view in which a part of the block body is shown as a cross section.

FIG. 3 is a front view in which a part of the block body is shown in section.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a side view of an enlarged partial cross section of a retaining wall having a block body constructed on a slope.

FIG. 6 is a side view in which a part of the retaining wall is shown in section.

7 is a cross-sectional view taken along the line BB of FIG.

8 is a cross-sectional view taken along line CC of FIG.

9 is a cross-sectional view taken along line DD of FIG.

FIG. 10 is a schematic front view of a retaining wall.

[Explanation of symbols]

 1 block body 3 rebar insertion hole 4 vertical rebar 5 rebar cage insertion hole 6 rebar cage 9 groove for horizontal rebar

Claims (2)

[Claims] 1. A rebar insertion hole is formed in the front part of the block main body in the left-right direction along the longitudinal direction, and at a position rearward of the rebar insertion hole of the block main body, the opening width is larger than that of the rebar insertion hole described above. A building block characterized in that a large rebar cage insertion hole is provided in the vertical direction, and a transverse reinforcing bar groove is provided along the horizontal direction on either the upper surface or the lower surface of the block body. 2. The center positions of the reinforcing bar insertion holes and the reinforcing bar insertion holes formed on the left and right sides of the block body are the length of one fourth of the lateral width of the block body from the side end of the block body. The building block according to 1.