JPH11131504A - Manufacture of l-shaped retaining wall of natural stone and construction thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To monolithically construct a large L-shaped retaining wall having the bottom section capable of becoming independent of natural stones, further promote work efficiency in comparison with the conventional masonry retaining wall method, avoid waste of stones in the manufacturing process, and to finish the external appearance of the L-shaped retaining wall by making the best use of a natural stone material. SOLUTION: Waste of stones is eliminated by a processing method of obtaining two L-shaped retaining wall stones from one rectangular natural stone 1, and work efficiency is promoted by standardizing the size. The L-shaped natural stone retaining wall is mounted on a footing concrete, and reinforcing bars 2 are inserted into reinforcing bar insertion holes. Concrete is so cast that the reinforcing bars 2 of the bottom of the L-shaped natural stone retaining wall are covered therewith, and the L-shaped natural stone retaining wall is monolithically formed of the concrete to obtain a sufficient strength. The neighboring L-shaped natural stone retaining walls are connected to each other by inserting a stainless bar and a U-shaped reinforcement into a joint hole 7. Since the natural stone is standardized and enlarged, execution can be easily carried out to make it possible to reduce the construction period.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing L-shaped and inverted T-shaped retaining walls by integrating concrete and natural stone on site by converting natural stone into a large-scale L-shaped free-standing structure.

2. Description of the Related Art As a natural stone masonry retaining wall method, there is a field area method in which a natural stone as it is is piled up and backfilling work of concrete or the like is repeated and stacked. in this case,
Due to the natural appearance of the stones, small stones are hand-worked, and even small stones are quite heavy and labor intensive. For large stones such as cranes, it is difficult to sling,
In addition, it is difficult to stand on its own because of the irregular shape, and the work of temporary fixing is troublesome. Masonry that looks good is difficult to produce unless it is an experienced craftsman. In the case of natural Ishigama shiraishi, the triangular pyramid is also piled up by repeating the concrete backfilling work while temporarily fixing the triangular pyramid. In addition, use thin stones for surface makeup, stop natural stones on the concrete body etc. already made with mortar and hardware, back up concrete between the concrete body and natural stones, and repeat the work There is a method of stacking stones. All of them are made of natural stone and have irregular dimensions, requiring skilled masons to process them on site. There are very few skilled masons compared to other industries. Work efficiency is poor due to manual processing. This is a construction method that requires a slow construction time and requires time and effort because of the repeated work of masonry and backfilling and the level adjustment of each step.

The purpose of the present invention is to eliminate the waste of stone materials during processing, to improve the efficiency of loading, transporting, and unloading operations during transportation and to improve safety. Construction can be performed by non-masons, simplification of repeated work of masonry and backfill for stacking work processes, and easy-to-install self-supporting retaining walls greatly shorten the process and meet design conditions. it can.

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention aims to reduce the waste of natural stones during processing by using an L-shaped natural stone having a bottom that can be made independent from one rectangular natural stone.
Two mold retaining walls can be manufactured at the same time. By increasing the size of one natural stone, work efficiency and safety can be improved during transportation, and the L-shaped retaining wall stone can be transported in a rectangular shape by combining two upper and lower L-shaped retaining stones. In addition, in the present invention, in order to leave a natural attraction, the appearance portion is processed with a split skin. In addition, the present invention cuts, processes, and standardizes the natural stone and the adjacent surface of the natural stone and the adjacent surface of the natural stone and the foundation concrete, so that even a non-professional mason is required. Construction is possible. In addition, the present invention is capable of self-supporting natural stone itself, so that the construction is simple and the size of the stone is increased, so that the repeated work of masonry and backfilling by stacking can be eliminated, and the process can be greatly shortened. In addition, the present invention can integrate natural stone and concrete on site, and provide L-shaped and inverted T
It can respond to design conditions such as molds.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An L-shaped stone having two bottoms is produced from one rectangular natural stone, so that the material can be used effectively and the L-shape having a bottom capable of self-supporting construction is used. It is easy to perform, and the work can be simplified by increasing the size, and the construction period can be significantly reduced. Also, since natural stone and concrete can be integrated at the site, sufficient strength can be obtained to meet the design conditions.

An embodiment of the present invention will be described in detail with reference to the drawings. In order to eliminate waste of the natural stone of the present invention, the bottom, height and width are positioned on a rectangular stone, which fits a predetermined size, and the bottom 13 and the stone width 14 are cut by a cutting machine using a diamond blade. I do. After that, the cutting groove 11 shown in FIG. 5 is formed by the same cutting machine, the arrow hole 12 is opened by a drill, and the wedge arrow is hit with a large hammer or the like to break the stone. The number and size of the rebar insertion holes 5a, 5b, 5c, the drainage hole 8, the pedestal connection hole 6, and the upper connection hole 7 are determined according to design conditions, and holes are dug. Two or more drain holes 8 are dug in one L-shaped retaining wall stone, and also serve as a lifting hole on site. At the time of transportation, they are stacked as shown in FIG. 5 and transported in a rectangular shape. At the site, an L-shaped retaining wall capable of self-supporting natural stone is installed on the foundation concrete 10 using heavy equipment or the like.
The connecting stainless steel rod 4 is inserted into the upper connecting hole 7 of two adjacent natural stones, and the connecting reinforcing bar 3 is inserted into the pedestal connecting hole 6 and connected. Insert the reinforcing bar 2 using concrete or the like into the reinforcing bar insertion holes 5a, 5b, 5c of the natural stone L-shaped retaining wall so as to be L-shaped or inverted T-shaped according to the design conditions, and cover up to the top of the bottom as shown in FIG. Then, concrete 9 is cast and integrated.

As described above, the present invention has the following excellent advantages. Since two L-shaped retaining walls are made from one natural stone, waste of raw materials is eliminated, and the working process can be greatly shortened. By combining the two L-shaped retaining walls, the shape becomes a large-sized rectangle, and the loading and unloading work by transportation can be performed safely and promptly by using heavy equipment and the like. Suitable for natural environment because the material is natural stone. Since large natural stones are used as material, backfilling concrete by stacking work is not used, so the natural ecosystem is not destroyed by the export of concrete etc. Due to the large size, natural stone has a heavy and heavy feeling, and it is very beautiful in appearance. It has a bottom that can be self-supported with large natural stones, so construction on the site is easy, and there is no repetitive work by stacking small natural stones, etc. It is not necessary to make a concrete skeleton, and the construction period can be greatly reduced. Since the drain hole is also used as a lifting hole, work efficiency is high and work can be performed safely.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rebar insertion for integrating and reinforcing natural stone L-shaped retaining stone and concrete constructed according to the embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a construction state according to the embodiment of the present invention. FIG. 4 is a sectional view taken along line AA shown in FIG. 3.

FIG. 3 is a front view of a natural stone L-shaped retaining wall according to the present invention.

FIG. 4 is a plan view of a natural stone L-shaped retaining wall in which the present invention is implemented and constructed, as viewed from above.

FIG. 5 is a perspective view showing a method for manufacturing a natural stone L-shaped retaining wall according to the present invention. The perspective view which shows the state at the time of the conveyance after manufacture.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Natural stone 2 Reinforcing bar 3 Connecting reinforcing bar 4 Connecting stainless steel bar 5a Reinforcing bar insertion hole 5b Reinforcing bar insertion hole 5c Reinforcing bar insertion hole 6 Pedestal connection hole 7 Top connection hole 8 Drainage hole 9 Concrete 10 Foundation concrete 11 Cut groove 12 Arrow hole 13 Bottom 14 Stone material width

Claims (3)

[Claims] 1. A large L-shaped retaining wall with an integrated bottom that can stand alone with natural stone only. 2. A method for manufacturing a large L-shaped retaining wall having an integrated bottom portion capable of being self-supporting only with natural stone. 3. A large L-shaped retaining wall that integrates a natural stone and concrete by integrating a large L-shaped retaining wall with a bottom that can stand alone with natural stone and an extension of the bottom, etc. on site according to design conditions with concrete. And an inverted T-type construction method.