JPH08300321A - Manufacture of artificial rock and form for manufacturing the artificial rock - Google Patents

Abstract

PURPOSE: To provide a method for manufacturing an artificial rock which can artificially produce a rock such as a baserock or stone lump with concrete and a form used to manufacture the same. CONSTITUTION: The data regarding the surface state of a rock obtained from a design diagram is input to a computer, and the stereoscopic shape 4 of the form in which the inverted surface of the surface of the rock is used as a concrete placing surface 14, is obtained by computer graphics. Then, the stereoscopic shape is longitudinally cut at a predetermined pitch by the graphics, and the surface 14 is finely divided by a triangular shape where a vertex is disposed on the adjacent sectional lines defined by the cut section. Thereafter, the beam board 11 of the cut sectional shape and the triangular board 12 of the same shape as a triangle 7 are manufactured, and then the board 11 is bonded to the board 12 to assemble the form 15 of the stereoscopic shape, and further concrete is placed in the assembled form 15.

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 pseudo rock and artificial form for producing rock such as bedrock and stone blocks by concrete, and a mold used for the production.

[0002]

2. Description of the Related Art In recent years, attempts have been made to place pseudo rocks on coasts, parks, amusement parks, etc. for the purpose of improving the scenery. Conventionally, to artificially create pseudo rocks, the surface of natural stone is generally molded with silicone resin, and mortar reinforced with glass fiber or carbon fiber is sprayed on the surface to a specified thickness, and the mortar is allowed to harden. We used a method such as cutting and removing the silicon resin with a cutter and taking it out as a panel, painting it as needed and assembling it on site.

[0003]

However, in the above-mentioned conventional method, since the silicone resin obtained by patterning natural stone becomes a consumable item, a large amount of patterning must be performed depending on the number and size of pseudo rocks required. In addition, the mold making is extremely troublesome and requires skill, and the productivity is extremely low.
There has been a problem that the manufacturing cost is extremely high and it is difficult to establish industrially.

The present invention has been made in view of the above-mentioned conventional problems, and enables pseudo rocks to be freely manufactured based on a design drawing without taking a pattern of natural stones, thereby improving mass productivity. An object of the present invention is to provide a rock manufacturing method and a mold used for the manufacturing.

[0005]

In order to achieve the above object, the method for producing a pseudo rock of the present invention is such that the data on the surface condition of the rock obtained from a design drawing is input to a computer and the rock is subjected to computer graphics. Obtain the three-dimensional shape of the formwork whose surface is the surface inverted to be the concrete pouring surface, and then, by computer graphics, vertically cut the three-dimensional shape at a predetermined pitch, and confirm with this vertically cut cross section. , Subdivide the concrete placing surface by triangles with vertices on adjacent section lines,
Thereafter, a cross-section woodblock having a vertical cut and a triangle board having the same shape as the triangle are manufactured, and then the woodblock and the triangle board are combined to assemble the three-dimensional formwork, Furthermore, concrete is poured into the assembled formwork.

In this manufacturing method, the design drawing is CA
It is desirable that the rocks are manufactured by D, the surface condition of the rock is converted into coordinates, and the coordinate values are input to the computer. Further, it is desirable that the apexes of the triangles that subdivide the three-dimensional concrete placing surface are set to the bending points on the section line. Further, it is desirable to obtain the coordinate values of the vertices of the triangle by computer graphics, input the coordinate values of the vertices of the triangle to the NC processing machine, and manufacture the wood board and the triangle version by NC processing.

In the present manufacturing method, in order to shield the joints of the triangular plates, the mold may be covered with an alkali-soluble sheet and the concrete may be poured.

In this manufacturing method, concrete may be cast in a shell shape or a block shape. When casting in a shell shape, it is desirable to add fibers to the concrete in advance in order to secure the strength of the pseudo rock. As the fibers in this case, glass fibers, carbon fibers, vinylon fibers and the like can be selected, but appropriate ones are selected according to the characteristics of the target pseudo rock.

The pseudo rock manufacturing formwork of the present invention comprises a flat plate-shaped base, and a plurality of wood boards which are erected on the base at a predetermined pitch and whose upper end is shaped to follow the profile of the surface of the rock. , Characterized in that it is composed of a large number of triangle plates that are closely bridged in contact with each other between the upper ends of adjacent wood boards. Although this formwork does not limit the type of material used, it is preferable to use wood because of its excellent workability.

[0010]

In the above-described method of manufacturing a pseudo rock, the three vertices of the triangle plate are always seated on the wood board. Therefore, by closely gathering the triangle plates, the concrete placing surface of an arbitrary three-dimensional shape can be obtained. Can be formed. Moreover, since the shapes of the wood board and the triangle board can be freely set by computer graphics based on the design drawings, it is possible to efficiently manufacture a mold having a complicated shape.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In this embodiment, first, a drawing of a pseudo rock is designed in consideration of the landscape of the place where the pseudo rock is installed. In designing this drawing, CAD is used. For example, as shown in FIG. 2, the x-axis, the y-axis (perpendicular to the paper surface), and the z-axis orthogonal 3
Draw a general view of bedrock 1 in the axial coordinates. Next, in this CAD drawing, the surface of the bedrock 1 is equally divided (in this case, in the x-z direction), and the panel area 2 of an appropriate size (2.0M × 2.0M in this case) is divided. To set P (01,03), P in each panel area 2.
(03,08) …… The number is attached like. In this CAD drawing, as shown in FIGS. 3 and 4, the x-axis and y-axis directions,
A cross-sectional view in the y-axis and z-axis directions is also manufactured at the same time, and the surface condition (surface profile) of the bedrock 1 is coordinated.

Next, with respect to each of the panel areas 2, the coordinates of the surface state are input to a computer, and the surface 3 of the rock 1 as shown in FIG. The three-dimensional shape 4 of the form is obtained. Next, the three-dimensional shape 4 is set to a predetermined pitch (for example, 20 cm) by computer graphics.
Vertically cut in the z-axis direction with
The surface 3 is subdivided into triangles 7 having vertices on adjacent cross-section lines 6 and 6 determined by. At this time,
As shown in FIG. 5, the vertices of the triangle 7 are set at the bending points of the cross-section lines 6, and the coordinates y1, y2 (FIG. 5) of the vertices of the triangles 7 are determined. Further, reference numerals a, b ... Are attached to each cross-section 5 in order from the end, and a series of numbers ... (FIG. 6) is attached to each triangle 7.

Next, the coordinate values of the vertices of the triangle 7 obtained by the computer graphics are input to an NC processing machine, and as shown in FIG. 1, the vertical cutting is performed by NC processing (cutting) from a wood board having a predetermined thickness. A wood board 11 of the same shape as the surface 5,
The triangle 7 and the triangular plate 12 having the same shape are manufactured, and the same reference numeral a, which is attached to each of the three-dimensional shapes 4 (FIG. 5),
b …… or mark the number ……. In addition,
The wooden board 11 and the triangular board 12 have the minimum necessary plate thickness that can endure the concrete pouring described later. As an example, the wood board 11 has a plate thickness of 10 to 15 mm, and the triangle board 12 has a thickness of 5 to 10 mm.
It has a plate thickness of mm. Further, a plate-shaped rectangular base 13 is prepared separately from the wood board 11 and the triangle board 12. The base 13 has at least a plate surface having the same size as the bottom surface of the three-dimensional shape 4.

After the production of the above-mentioned wood board 11, triangle board 12 and base 13, as shown in FIG. 1, first, a plurality of wood boards 11 are formed on the base 13 at the same pitch as the cross section 5 in the three-dimensional shape 4 described above. Is erected vertically and is fixed to the base 13 using, for example, an adhesive. Subsequently, a plurality of triangular plates 12 are bridged between the upper ends of the adjacent wooden boards 11, and these are also fixed to the wooden boards 11 using, for example, an adhesive. At this time, it goes without saying that they are assembled according to the above-mentioned symbols a, b ... Or the number ... The upper end of each wood board 11 establishes the profile of one section line 6 of the three-dimensional shape 4 of the formwork, and the three vertices of the triangle board are always seated on the upper end of the wood board 11, so this triangle board is closely packed. The upper surface gathered at is constructed as a concrete pouring surface 14, and a mold 15 having substantially the same shape as the three-dimensional shape 4 is completed.

Next, the four sides of the mold 15 are surrounded by side plates (not shown), and the concrete placing surface 14 is covered with an alkali-soluble sheet (not shown) such as a polyester sheet. Is placed in a shell shape. For concrete, it is desirable to add, for example, vinylon fiber or an inorganic pigment, so that after solidification,
When the mold 15 is released from the mold, a fiber-reinforced concrete panel (not shown) having a desired color is obtained. This panel has one panel area 2 (FIG. 2) on the design drawing.
It has the surface condition that the surface of the above is transferred, and the necessary number of panels manufactured corresponding to each panel area 2 is carried into the site, assembled according to the above address, and fixed to, for example, an outcrop with an adhesive. If so, a rock mass having the same surface condition as the designed rock mass 1 (Fig. 2) will appear on site.

In this embodiment, design drawings are produced by CAD, and the surface condition of the bedrock 1 is coordinated,
Since the coordinate values are input to the computer, the input work becomes simple and the subsequent computer graphics processing becomes easy. Further, since the coordinate values of the vertices of the triangle 7 are obtained by computer graphics and the coordinate values of the vertices of the triangle 7 are input to the NC processing machine, the wood cutting and the triangle version are manufactured by the NC processing. Accurate and easy required wood board 11
And the triangle plate 12 can be manufactured. In addition, by covering the concrete placing surface 14 with an alkali-soluble sheet, the joints of the triangular plate 12 are shielded, and the curved surface of the manufactured pseudo rock appears realistically, which makes it natural. further,
Since concrete is cast in a shell shape to form a panel structure, it is lightweight and easy to transport, and local assembling is also good.

In the present invention, it is also possible to cast concrete in a block shape by using the mold 15 to form a block-shaped pseudo rock. In this case, it is possible to provide a large amount of pseudo rock by filling the block with, for example, an iron ingot.

[0019]

According to the method of manufacturing a pseudo rock of the present invention, a three-dimensional shape of a mold is made by computer graphics based on a design drawing, and the three-dimensional shape is subdivided into a desired shape from a wood board and a triangle board. Since the mold having the concrete pouring surface is assembled, the pseudo rock can be industrially mass-produced by using the mold without molding the natural stone, and the manufacturing cost is significantly reduced. In addition, the formwork used in the present manufacturing method can form a concrete placing surface having an arbitrary three-dimensional shape by combining a wood board and a triangle board, and its utility value is great.

[Brief description of drawings]

FIG. 1 is a perspective view showing the structure of a mold used in the method for manufacturing a pseudo rock of the present invention.

FIG. 2 is a schematic diagram showing a design drawing of rock mass used at the start of the present manufacturing method.

FIG. 3 is a graph showing a profile of a rock surface in a design drawing on orthogonal biaxial coordinates.

FIG. 4 is a graph showing a profile of a rock surface in a design drawing on another orthogonal biaxial coordinate.

FIG. 5 is a perspective view showing a three-dimensional shape of a mold obtained by computer graphics and a dividing method thereof.

FIG. 6 is an enlarged perspective view showing a three-dimensional shape of a mold obtained by computer graphics and a dividing method thereof.

[Explanation of symbols]

 1 Rock bed 4 Three-dimensional shape of formwork 5 Cross section 6 Cross section line 7 Triangle 11 Wood plank 12 Triangular version 13 Base 14 Concrete placing surface 15 Formwork

Claims (10)

[Claims] 1. Data of a surface condition of rock obtained from a design drawing is input to a computer to obtain a three-dimensional shape of a formwork in which a surface obtained by reversing the surface of the rock is a concrete placing surface by computer graphics, Next, by computer graphics, the three-dimensional shape is longitudinally cut at a predetermined pitch, and the concrete placing surface is thinned by triangles having vertices on adjacent cross-section lines determined by the longitudinally cut cross-sections. Dividing, and then producing the cross-section wood board having the cross-section and the triangle board having the same shape as the triangle, and then connecting the wood board and the triangle board to form the three-dimensional formwork. And assembling concrete on the assembled formwork, and manufacturing a pseudo rock. 2. The pseudo rock manufacturing method according to claim 1, wherein the design drawing is manufactured by CAD, the surface condition of the rock is coordinated, and the coordinate values are input to a computer. 3. The method for producing a pseudo rock according to claim 1, wherein the apex of the triangle is set at a bending point on the section line. 4. A computer graphics method for determining the coordinate values of the vertices of a triangle, inputting the coordinate values of the vertices of the triangle to an NC processing machine, and producing a wood board and a triangle version by NC processing. The method for producing a pseudo rock according to any one of claims 1 to 3. 5. The concrete is placed by covering the mold with an alkali-soluble sheet.
5. The method for producing a pseudo rock according to any one of items 4 to 4. 6. The method of manufacturing a pseudo rock according to claim 1, wherein the concrete is cast in a shell shape. 7. The method for producing a pseudo rock according to claim 6, wherein fibers are added to the concrete. 8. The method of manufacturing a pseudo rock according to claim 1, wherein the concrete is cast in a block shape. 9. A flat plate-shaped base, a plurality of wood boards which are erected at a predetermined pitch on the base and whose upper end is shaped to follow the profile of the surface of a rock, and between the upper ends of adjacent wood plates. A formwork for manufacturing pseudo rocks, which is composed of a large number of triangular plates that are densely bridged in contact with. 10. The mold for producing pseudo rock according to claim 9, wherein wood is used as a material.