JPH0699414A - Manufacture of artificial great stone - Google Patents

Abstract

PURPOSE:To provide easily and inexpensively a method for manufacturing a great stone of a pebble shape which does not damage a natural scenery such as a dry river bed, a bank elevation and the like when it is placed in the nature. CONSTITUTION:An artifitial great stone 100 is used for a river bed, a bank elevation and the like, and molds 31-33 are placed on the ground surface G, and natural rubble stones 10 and the like are arranged in the pebble shape in the mold 31. Ready mixed concrete 21 is poured into the rubble stones 10, and the molds 31-33 are removed after mixed concrete 21 is cured. Also the natural round stones 10 and the like are mixed with concrete 21 in the molds disposed on the ground surface G, and the molds are removed after the concrete 21 is semi-cured, and water or sand is sprayed to the concrete containing the natural round stones 10 and the like, and then removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a stone-shaped artificial megalith, which is mainly used for riverbeds and slopes.

[0002]

2. Description of the Related Art Conventionally, riverbeds are composed of natural stones having various sizes and shapes such as boulders and gravel, in addition to megaliths. However, in recent years, as megaliths and cobblestones continue to be collected from the riverbed for landscaping, etc., the flow of water becomes monotonous, and there are fewer rivers, pools, rocks, etc. where fish can easily live in the river. There is. Therefore, in such rivers,
The number of fish inhabiting is decreasing. Further, conventionally, a huge concrete block is used as it is as a riverbed or a dike slope for the purpose of revetment.

[0003]

However, although the above-mentioned conventional concrete block has an effect as a revetment for rivers, the background of concrete can be seen,
There was a drawback that the natural landscape of the riverside, such as the riverbed or the dike slope, would be damaged. Furthermore, many of these conventional concrete blocks are composed of a monotonous flat surface, which makes them unsuitable as a habitat for fish.

The present invention was devised there, and its purpose is to create an environment in which fishes and the like can easily inhabit the riverbed, and also to create a natural landscape such as the riverbed or the dike slope. An object of the present invention is to provide a method for easily and inexpensively producing a wrinkle-shaped artificial megalith that does not impair the quality.

[0005]

[Means for Solving the Problems] The means adopted by the present invention in order to achieve the above object will be described below with reference numerals used in the drawings corresponding to the embodiments. That is, claim 1
As shown in FIG. 1 to FIG. 6, the configuration of the present invention relates to “an artificial megalith 100 used for a riverbed or a dike slope,
The molds 31 to 33 are installed on the surface G of the earth, and the natural cobblestones 10 and the like are arranged in a line in the formwork 31 to form the cobblestones 10.
A method for manufacturing an artificial megalith, characterized by injecting fresh concrete 21 into the interior of the above, and after the ready concrete 21 is hardened, the molds 31 to 33 are removed. Is the content.

Next, the structure of the present invention according to claim 2 is, as shown in FIGS. 9 and 10, "an artificial megalith 102 used for a riverbed, a dike slope, etc., which is arranged on the surface G of the earth. After mixing the natural cobblestone 10 and the like and the green concrete 21 into the mold 39 and semi-hardening the green concrete 21, the mold 39 is removed to remove the semi-hardened material adhered to the surface of the natural cobblestone 10 and the like. A method for producing an artificial megalith characterized by spraying water or sand onto concrete to remove it. "

Next, the structure of the present invention according to claim 3 is, as shown in FIG. 11, "a man-made giant stone 103 used for a riverbed, a dike slope, etc., which is placed on the surface G of the mold 40. The natural cobblestones 10 and the like and the green concrete 21 are put therein, and the natural cobblestones 10 and the like and the green concrete 21 are well mixed in the mold 40, and the green concrete 21 is semi-cured, and then the mold Remove the frame 40, natural cobblestone 10
A method for producing an artificial megalith, characterized by spraying water or sand onto semi-hardened concrete adhering to the surface of, for example, to remove the water. Is the content.

In the above-mentioned claims 1 to 3, the natural cobblestones 10 and the like include not only natural stones existing in the riverbank or other surfaces or in the ground but also crushed stones formed by crushing rocks. Further, the rough stone shape means a state in which a large number of natural cobblestones 10 and the like are projected on the surface of the concrete block.

[0009]

By the above means, in the method of manufacturing an artificial megalith according to claim 1, the form 31 installed on the upper surface of the ground surface G is used.
Since the natural cobblestones 10 and the like arranged in the shape of a stone in ~ 33 are fixed by the fresh concrete 21, the form 3
It is possible to manufacture the artificial megalith 100 having a certain size according to 1-33. Further, in the method for manufacturing an artificial megalith according to claim 2, the artificial megalith 102 used for a riverbed, a dike slope, etc.
However, since the natural cobblestones 10 and the like and the fresh concrete 21 are mixed in the formwork 39 arranged on the ground surface G, even if the natural cobblestones 10 and the like are not arranged in the formwork 39, Frame 3
It is possible to manufacture the artificial megalith 102 of a certain size according to 9. Further, since water is sprayed on the surface of the natural cobblestone 10 or the like, the surface of the natural cobblestone 10 or the like can be finished beautifully.

Further, in the method for manufacturing an artificial megalith according to claim 3, the artificial megalith 1 used for a riverbed, a dike slope, etc.
03, the natural cobblestones 10 and the like and the fresh concrete 21 are put into the formwork 40 arranged on the ground surface G, and the natural cobblestones and the like and the ready-mixed concrete are well mixed in the formwork 40. So, in advance, outside the formwork, natural cobblestone 1
It is not necessary to mix 0 and the like with ready-mixed concrete 21, and even without arranging the natural cobblestones 10 and the like, the formwork 4
An artificial megalith 103 of a certain size corresponding to 0 can be manufactured. Further, since water is sprayed on the surface of the natural cobblestone 10 or the like, the surface of the natural cobblestone 10 or the like can be finished beautifully.

[0011]

EXAMPLE A first example of the method for producing an artificial megalith according to claim 1 will be described below with reference to FIGS. This applies to the movable megalith 100, first,
As shown in FIG. 2, the first formwork 31 is fixed to the ground surface G.
Next, the boulders 10 and the like are arranged on the ground surface G in the form 31.
Further, the cobblestones 10 and the like are piled up and arranged along the inner surface of the first formwork 31. In this case, if a filler 11 such as pebbles or clay is placed between the cobblestone 10 and the inner surface of the first formwork 31, the cobblestones 10 and the like can be easily arranged according to the shape of the artificial megalith 100, and the fresh concrete When injecting 21,
It is possible to prevent the movement of the cobblestones 10 and the like, and further to prevent the fresh concrete 21 from flowing out from between the cobblestones 10.
It is possible to secure the fixation of After the boulders 10 and the like are arranged, fresh concrete 21 is poured inside the boulders 10 and the like. The first formwork 31 may be placed directly on the upper surface of the ground surface G, or may be placed on an iron plate or a suction-preventing mat placed on the ground surface G.

Next, as shown in FIG. 3, the first formwork 3
The second formwork 32 is fixed on top of 1. Then, along with the inner surface of the second form 32, the cobblestones 10 and the like are piled up and arranged in the same manner as described above. In this case, the second formwork 3 as described above.
A filling material 11 such as pebbles or clay may be appropriately disposed between the inner surface of 2 and the cobblestone 10. After arranging the boulders 10 etc.,
Fresh concrete 21 is poured into the inside of the cobblestone 10 and the like, and is joined to the fresh concrete 21 in the first formwork 31. Although not shown, a so-called streak may be used in some cases.

Next, as shown in FIG. 1, the second form 3
A third formwork 33 is fixed on top of 2. Then, along with the inner surface of the third form 33, the boulders 10 and the like are piled up and arranged in the same manner as described above. In this case, a filling material 11 such as pebbles or clay may be appropriately disposed between the inner surface of the third mold 33 and the cobblestone 10. After the boulders 10 and the like are arranged, fresh concrete 21 is poured inside the boulders 10 and the like. This formwork 31,
32 and 33 can be stacked in multiple stages according to the size of the artificial megalith 100. When the third formwork 33 corresponds to the uppermost formwork, the natural cobblestones 10 and the like are arranged on the exposed surface 22 of the poured fresh concrete 21, as shown in FIG. Furthermore, if this is covered with sand 12 etc., it is effective for curing concrete.

Next, when the ready-mixed concrete 21 hardens to become a concrete block, the formwork 31, 32, 3
When 3 is removed, as shown in FIG. 4, an artificial megalith 100 having cobblestones 10 and the like fixed on the surface thereof in a stone shape appears. Therefore, as shown in FIG. 5, when high-pressure water is sprayed on the surface to remove the filler 11 such as pebbles and clay and the earth and sand 12 and the like,
The artificial megalith 100 having the natural cobblestones 10 and the like provided on the surface in a stone shape is taken out. As shown in the drawing, if an anchor (not shown) for hoisting is arranged at the time of placing concrete, the artificial megalith 100 can be used by using a crane or the like.
Is easier to transport.

In the riverbed composed of the artificial megaliths 100, as shown in FIG. 6, voids 70 are formed between the megaliths 100 or between the boulders 10. The void 70 becomes a place where fishes easily inhabit. In addition, since the riverbed is formed of megaliths, it is possible to greatly change the water flow, and it is also possible to form a pool or a rock shade in which the fish easily inhabit. This artificial megalith 10
A water flow hits the boulder 10 of 0 to generate blisters, and the blisters supply oxygen to the river, so that the habitation conditions of fishes and the like are improved. Furthermore, since the artificial boulder 100 is provided with natural boulders 10 and the like on the surface thereof in the form of stones, the boulder 1
Moss, which is the food for fish, grows on the 0 side naturally.

The boulders 10 provide an excellent natural landscape both inside and outside the river. Artificial megalith 1
Vegetation naturally grows on the soil accumulated between the boulders 10 on the 00 surface, and the natural landscape is further improved. Further, the artificial megalith 100 can be used not only on riverbeds but also on dike slopes such as rivers. In this case, the surface of the concrete block 20 cannot be seen due to the cobblestones 10 and the like provided on the surface. The natural landscape is not damaged.

Further, the artificial megalith 100 has the molds 31, 3
Since it is formed into a substantially uniform size and shape by 2, 33, it is extremely convenient in construction such as revetment work. still,
In the present embodiment, the formwork is placed on top of the formwork 31.
2,33 were piled up and made up of 3 pieces, but artificial megalith 10
It may be configured with one mold according to the size of 0.

7 and 8 show a second embodiment of the invention according to claim 1, which is an embodiment in which the artificial megalith 101 is integrally fixed to the surface G of the earth. In this embodiment, an excavation surface 38 is formed on the ground surface G, and the excavation surface 38 is formed in an obliquely upper direction. The formwork 34 is installed on the upper surface of the ground surface G, and the side ends thereof are abutted against the excavation surface 38. Then, the cobblestones 10 are arranged along the inner surface of the mold 34, and the filling material 11 for holding the cobblestones 10 is filled between the cobblestones 10 and the mold 34. Then, the fresh concrete 21 is poured inside the cobblestone 10 and the excavated surface 38.

Next, the mold 35 is set on the upper part of the mold 34, and the cobbles 10 are lined up and filled with the filler 11 to hold the cobbles 10 in the same manner as described above. Pour fresh concrete 21 into. By repeating this process, the boulders 10 are placed inside the molds 36 and 37 installed on the mold 35.
Are lined up and fresh concrete 21 is poured. After pouring the ready-mixed concrete 21 into the uppermost form 37, the natural cobblestones 10 and the like are placed on the exposed surface 22 of the ready-mixed concrete 21, and further covered with earth and sand 12. When this raw concrete 21 is hardened, it is fixed integrally to the ground surface G and the excavated surface 38. Therefore, the formwork 34, 35, 3
6 and 37 are removed, and the filling material 11 and earth and sand 12 with high pressure water 12
If blown away, artificial megalith 1 fixed to the ground surface 1
01 is formed. If the artificial megaliths 101 are formed on both sides of the trench, the water channels W are formed by arranging the natural boulders 10 and the like on the surface in a stone shape.

9 and 10 show a third embodiment of the invention according to claim 2. The formwork 39 is installed on the ground surface G. The natural cobblestones 10 and the like and the fresh concrete 21 are mixed in advance outside. This blending ratio is, for example, 10 pieces of natural boulders each weighing 0.5 to 60 kg.
Etc. 1000-1500 kg, aggregate 900-1 such as gravel
100 kg, cement 250-260 kg and water 160
It is a mixture with green concrete 21 of 170 liters. This mixture is put into the mold 39. Then, when the green concrete 21 is semi-hardened, as shown in FIG. 10, the form 39 is removed, and the semi-hardened concrete adhering to the surface of the cobblestone 10 or the like is wiped off with high-pressure water or sand. After that, when the ready-mixed concrete 21 is completely hardened, the artificial megalith 102 is completed. In this third embodiment, in addition to the effects of the first embodiment, the cobblestone 1
This has an effect that the work of arranging 0s and the like can be omitted.

FIG. 11 shows a fourth embodiment of the invention according to claim 3. In this example, the surface G
The form 40 is installed at a predetermined position above. Next, formwork 4
Into 0, natural cobblestones 10 and fresh concrete 21 are put. Then, the cobbles 10 and the like and the fresh concrete 21 are mixed well by a shovel, a power shovel, a vibrator, or the like. And when the green concrete 21 is semi-hardened,
The mold 40 is removed, and the semi-hardened concrete adhering to the surface of the cobblestone 10 or the like is wiped with high-pressure water or sand to remove it. Then, when the ready-mixed concrete 21 is completely hardened, the artificial megalith 103 is completed. In the fourth embodiment of the present invention, as in the third embodiment, it is possible to omit the work of previously mixing the natural cobblestone 10 and the like with the fresh concrete 21 in advance and transporting it to the construction site. It is effective.

FIG. 12 shows a fifth embodiment of the invention according to claim 3 in which a form 41 is installed at a predetermined position on the ground surface G. Next, the ready-mixed concrete 21 and the cobblestones 10 are put into the form 41, but in the present embodiment, it is applied when the height of the artificial megalith 104 is large. This is done in two batches. That is, in the first contact with the ground surface G, the small-sized boulders 10 and the fresh concrete 21 are put. In this case, the mixing ratio of the cobblestone 10 and the green concrete 21 may be appropriately determined, and the mixing ratio of the green concrete 21 may be large. Then, the second charging is performed. In this case, the cobbles 10 are larger, and the mixing ratio of the cobbles 10 and the ready-mixed concrete 21 is the first.
The ratio of boulders 10 is made larger than that of the first time. Then, they are mixed by a shovel, a power shovel, a vibrator, or the like. When the ready-mixed concrete 21 is semi-hardened, remove the form 41,
If semi-hardened concrete adhering to the surface of the cobblestone 10 is sprayed with high-pressure water or sand to remove it, the surface of the cobblestone 10
The artificial megalith 104 in which the elements etc. are arranged is completed on the ground surface G.
In the above embodiment, the cobblestone 10 and the ready-mixed concrete 21 are put in twice, but they may be put in once depending on the height of the artificial megalith 104.

13 and 14 show a sixth embodiment of the invention according to claim 3, which is applied when the ground surface G in the fifth embodiment is inclined. That is, a mold 42 is formed by front and rear (not shown) and left and right side plates, and natural cobblestones 10 and the like and fresh concrete 21 are put into this mold 42, and they are mixed well by a vibrator or a shovel. The exposed surface is covered with earth or sand 12 for effective curing. Then, after the ready-mixed concrete 21 is hardened, the artificial megalith 105 is completed on the ground surface G by wiping high-pressure water or sand to remove the earth and sand 12.
Also in this embodiment, the same effect as that of the fifth embodiment is obtained. In this embodiment, as in the third embodiment, the natural cobblestones 10 and the like and the fresh concrete 21 may be mixed in advance and placed in the mold 42.

The present invention is not limited to the embodiments described above and shown in the drawings. For example, the finish condition of the surface is a problem, such as the side surface which is predetermined to be placed on the river bottom. Regarding the side surface which does not become, various modifications are possible within a range not departing from the gist, such as removing the form after the ready-mixed concrete has hardened.

[0025]

As described above, the present invention has the following effects. First, in the method for manufacturing an artificial boulder according to claim 1, since natural boulders and the like are arranged in the form of stones in this formwork, and raw concrete is poured into the boulders to be hardened, so that the boulders are almost even. Artificial megaliths of various sizes and shapes can be efficiently produced, which is extremely convenient for construction of revetments. In the method for manufacturing an artificial megalith according to the second aspect of the present invention, the work of arranging the cobblestones and the like is not required, so that the working efficiency can be improved. In the method for manufacturing an artificial megalith according to claim 3, since it is not necessary to previously mix natural cobblestones and fresh concrete outside and to transport the mixture to a construction site, work efficiency is further improved. There is an effect that can be made.

[Brief description of drawings]

FIG. 1 is a sectional view showing a third step of the first embodiment for producing an artificial megalith according to the present invention.

FIG. 2 is a sectional view showing a first step of the step in FIG.

FIG. 3 is a cross-sectional view showing a second step of the step in FIG.

FIG. 4 is a cross-sectional view in which the mold is removed from the step in FIG.

5 is a cross-sectional view showing a state in which the surface is cleaned from the step in FIG.

FIG. 6 is a cross-sectional view of a riverbed constructed using the artificial megalith according to the present invention.

FIG. 7 is a cross-sectional view showing a step of the second embodiment for producing an artificial megalith according to the present invention.

FIG. 8 is a cross-sectional view showing a step different from the step shown in FIG.

FIG. 9 is a cross-sectional view showing a step in the third embodiment for producing an artificial megalith according to the present invention.

FIG. 10 is a cross-sectional view showing a step different from the step shown in FIG.

FIG. 11 is a cross-sectional view showing a step in the fourth embodiment for producing an artificial megalith according to the present invention.

FIG. 12 is a cross-sectional view showing a step of the fifth embodiment for producing an artificial megalith according to the present invention.

FIG. 13 is a cross-sectional view showing a step in the sixth embodiment for producing an artificial megalith according to the present invention.

FIG. 14 is a cross-sectional view showing the next process of the manufacturing process in FIG.

[Explanation of symbols]

 10 Natural Cobblestone 20 Concrete Block 21 Fresh Concrete 31 Formwork 32 Formwork 33 Formwork 34 Formwork 35 Formwork 36 Formwork 37 Formwork 38 Formwork 39 Formwork 40 Formwork 41 Formwork 42 Formwork 100 The present invention Artificial megalith 101 according to the present invention 102 Artificial megalith according to the present invention 103 Artificial megalith according to the present invention 103 Artificial megalith according to the present invention 104 Artificial megalith according to the present invention 105 Artificial megalith according to the present invention G Ground surface

Claims (3)

[Claims] 1. An artificial megalith used for riverbeds, dike slopes, etc., where a formwork is installed on the surface of the earth, and natural cobblestones, etc. are lined up in the formwork inside the cobblestones. A method for producing an artificial megalith, comprising injecting fresh concrete, and after the fresh concrete has hardened, removing the formwork. 2. An artificial megalith used for riverbeds, dike slopes, etc., where natural cobblestones and fresh concrete are mixed in a formwork placed on the surface of the earth, and the raw concrete is semi-hardened. After that, the mold is removed, and water or sand is sprayed on the semi-hardened concrete adhering to the surface of a natural cobblestone or the like to remove the artificial megalith. 3. An artificial megalith used for riverbeds, dike slopes, etc., in which natural cobblestones and fresh concrete are put into a formwork placed on the surface of the earth, and these natural cobblestones and other raw stones are used. Mix well with concrete in the formwork, after the green concrete is semi-hardened, remove the formwork, spray water or sand on the semi-hardened concrete adhered to the surface of natural cobblestone, etc. to remove it. A method for producing a characteristic artificial megalith.