JP2932224B2 - Manufacturing method of retaining wall block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a retaining wall block which can be easily constructed.

[0002]

2. Description of the Related Art Conventionally, a retaining wall, which is a structure provided for protecting a steep slope of earth and sand which is nearly vertical, includes a stone masonry retaining wall, a dynamic type, a reaction type, an inverted T type, an L type, and a standing type. There are concrete retaining walls and reinforced concrete retaining walls of types such as wall type and dependent wall type. Among these, the stone-retaining wall is constructed by placing stones on the surface of the backing soil and repeatedly cementing the surroundings of the stone. I was

In addition, various types of stones are arranged on a formwork, the stones are temporarily fixed with a liquid coagulant, concrete is poured thereon, and after curing, the block product is removed from the block to remove the coagulant. A method for manufacturing a retaining wall block has been proposed (see, for example, JP-A-3-159703).

[0004] Also, natural stones and the like are arranged in a formwork, poured into an amount of water having an appropriate depth, frozen to freeze the water, and concrete is poured thereon and hardened, and the concrete is hardened. After that, a method of manufacturing a concrete block in which the ice is melted to remove the mold is proposed. (See, for example, Japanese Utility Model Laid-Open No. 60-191406).

[0005] In addition, exterior materials such as tiles and stones are arranged in a formwork for exterior materials of buildings, concrete secondary products such as civil engineering concrete products such as parks and roads, etc., and then water is poured into the lower portions of the exterior materials. Immersed in water and integrated, cooled and poured concrete with water in ice, and after the concrete solidified, heat was applied to the formwork or product to melt and remove the ice to prevent the external material from being attached. A method for producing a concrete secondary product has been proposed (for example, see Japanese Unexamined Patent Publication No.
No. 31710).

[0006]

With the stone-retaining wall described in the above prior art, one stone is fixed to the backing soil with cement by hand, so that it takes time and effort. There was a problem that the work efficiency was lowered due to the formation of unevenness on the front with stones.

Further, Japanese Patent Application Laid-Open No. HEI 3-1597 of the above prior art example
No. 03 uses a coagulant to fix the stone, and Japanese Utility Model No. 60-191406 shows that it takes time and effort to adjust the amount of water injected into the formwork, and that the concrete surface has irregularities,
Japanese Unexamined Patent Publication No. Hei 6-31710 has a problem that all of the above three prior arts require a great deal of labor and cost, such as thawing of icing in a mold by heat treatment.

Therefore, the present inventor has noted that the water in the container maintains a constant horizontal water surface, and has an excellent aesthetic appearance in which the exposed portion and the joints made of cement are uniform with the adjustment of the degree of exposure of the stone. It is an object of the present invention to provide a method for manufacturing a wall block, and to improve a construction work of a retaining wall.

[0009]

In order to achieve the above object, the present invention provides a frame having a double structure with a bottom and a bottom.
A suitable amount of stones are placed side by side in the bottomless frame, and an appropriate amount of water is added to adjust the degree of exposure of the stone. After that, the water is frozen by means such as freezing, and then the ready-mixed concrete is put into the bottomless frame. I do. Technical measures are taken such that the bottomed and bottomless frames are inverted, the ice is melted and removed, and then curing is performed.

[0010]

[Action] When the water level in the bottomless frame in which the stones are arranged is adjusted to determine the degree of exposure of the stone and then frozen, the freezing action solidifies the water and the stone is fixed in the bottomless frame. The ready-mixed concrete, which is a semi-liquid substance put into the frame, has a bottom surface that maintains a horizontal water surface due to the surface of the ice, so that it enters the gap between the stones and fills the surface of the ice.

[0011] Even if the frame is inverted, the stones do not fall because the stones are fixed to each other by ice and the specific gravity of the stones and concrete is substantially the same.

When the ice melts, the object is exposed as a uniform horizontal surface.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a bottomed frame having an open upper surface, and a plurality of drain ports 3 are provided on the side wall 2 so that the water level can be adjusted. The material of the bottomed frame 1 is not limited, but it is preferable that the frame is as strong as iron or the like. In the present embodiment, the plurality of drainage ports 3 are provided in the side wall 2 in the up-down direction. However, the present invention is not limited to this, and any means may be used as long as the water level can be freely adjusted. Reference numeral 4 denotes a bottomless frame, which is composed of side walls 5 on the front and back sides and side walls 6 on the right and left sides, and the top and bottom surfaces are closed. The bottomless frame 4 is stored in the bottomed frame 1, a plurality of frame stones 7 are arranged in the bottomless frame 4, and an appropriate amount of water 8 is further poured into the bottomless frame 4. Since the drain port 3 is configured such that a stopper is detachable, the drain port 3 is sealed in accordance with the position of the joint 9. As shown in FIG. 1, the bottomed frame 1 containing the frame stone 7 and the water 8 is put into a freezer,
Freeze water 8. After the water 8 is frozen, it is taken out of the freezer, and the ready-mixed concrete 10 is charged and filled into the bottomless frame 4,
As shown in FIG. 2, a lid 11 is placed on the upper opening of the bottomless frame 4,
The entire bottomed frame 1 is inverted. After the reversal, as shown in FIG. 3, the bottomed frame 1 is removed, the ice 12 is naturally melted and removed, and after standing for a certain period of time, after curing, the bottomless frame 4 is removed to obtain a product as shown in FIG. What you get.

In this embodiment, the surface of ice having a horizontal surface is formed in the bottomless frame 4 by freezing water, and a horizontal joint made of concrete cement is formed between the crushed stones 7 by the surface of the ice. Is what you do. As shown in FIG. 5, the retaining wall block obtained according to the present embodiment has a back surface fixed to a backing soil with cement, and is stacked and fixed to each other to form a retaining wall.

Next, another embodiment of the present invention will be described with reference to FIGS. 1 to 4 and FIG. 6. Similar to the above-described embodiment, an appropriate amount is placed in a bottomless frame 4 provided on a bottomed frame. The water 8 and the crushed stone 7 are put and the water 8 is frozen, and the ready-mixed concrete 10 is further charged and filled, and the lid 11 is covered. After inversion, only the bottomed frame 1 is removed and cured, and the retaining wall with the frame is provided. Get a block for

In the present embodiment, when the obtained product is used, the bottomless frame 4 forms a pattern, and is not limited to a retaining wall. It is.

[0018]

The present invention produces a beautiful retaining wall block in which the exposed surface of the stone and the joint are uniformed by fixing the crushed stone by the freezing action of water and forming a horizontal joint on the horizontal surface of the ice. There is an effect that can be done.

In addition, the obtained product is adapted to the natural environment by exposing the size of the stone depending on the water level, and the beautification of the retaining wall and the improvement of the construction work efficiency are achieved by blocking a plurality of stones with concrete cement. There is an effect of obtaining.

Further, the ability to manufacture a retaining wall block with a frame allows the bottomless frame to produce a pattern, increasing the design effect, and being usable for walls, paving stones, etc. in addition to retaining walls. There is.

Further, in the present invention, since the bottomless frame is placed in the bottomed frame to form a double structure, the amount of water injected into the bottomless frame can be easily grasped to determine the degree of stone exposure. Can be adjusted.

Further, since the bottomed frame is provided with a plurality of drain ports, there is an effect that the water level can be easily adjusted using the drain ports.

Further, since the fresh concrete is filled in the non-bottomed frame, a lid is applied, and after solidification, it is inverted together with the frame and naturally thawed, so that the surface of the ready-mixed concrete is smooth without irregularities. Has the effect of increasing the product value without difficulty.

[Brief description of the drawings]

FIG. 1 is a partially cutaway explanatory view showing a state where a stone and water are put in a bottomless frame.

FIG. 2 is a sectional view showing a state in which ready-mixed concrete is filled in a bottomless frame body and covered.

FIG. 3 is a cross-sectional view showing a state in which the bottomed frame has been removed after inversion.

FIG. 4 is an explanatory view showing a state in which ice is removed by melting and a bottomless frame is removed.

FIG. 5 is an explanatory diagram showing a use state of the obtained product.

FIG. 6 is an explanatory diagram showing a retaining wall block obtained according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 bottomed frame 2 side wall 3 drain port 4 bottomless frame 5 side wall 6 side wall 7 crushed stone 8 water 9 joint 10 ready-mixed concrete 11 lid 12 ice

Claims (1)

(57) [Claims] 1. A concrete block in which natural stones and the like are frozen and fixed in a bottomed frame, a bottomless frame is placed in the bottomed frame to form a double structure. After arranging unequal stones, injecting water to adjust the exposure of the stones and then freezing them, then putting ready-mixed concrete on the stones in the bottomless frame, covering the top surface and solidifying it A method of manufacturing a retaining wall block, wherein the frame is inverted together with the lid so that water can be removed from the surface of the stone together with natural thawing.