JPH1193138A - Assembly concrete block and civil engineering structure using block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembly concrete block to form three dimensional structure wherein block units are assembled together and coupled and energy of waves and a flow is directly dispersed and absorbed and a civil engineering structure using this assembly concrete block. SOLUTION: Long block units 12 are stacked in two stages to assemble together trapezoidal protrusion part and recessed part, and a single short block unit 11 making contact with the end part thereof and inclined at 60' is arranged. An A-trains 21 wherein the centers of eight coupling holes are aligned to form respective equilateral triangles and B-train 22 linearly systematical to the A-train are alternately arranged in parallel in three trains. A coupling member 18 is inserted through the respective corresponding coupling holes with a spacer part nipped therebetween and three trains of the block units are tighetened by a string to form a rhombic concrete block 20. Three short block units 11 are rotatable in a 60 deg. arc centering around the axis of the coupling material 18 of a bottom with three short block units 11 coupled together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled concrete block for civil engineering for breaking waves, cultivation of fish and shellfish, and consolidation, and a civil engineering structure using the block. About things.

[0002]

2. Description of the Related Art Conventionally, many waves are placed on the entire surface of a breakwater or coastal embankment, thereby dispersing and absorbing the energy of a breaking wave in a space in a block layer to reduce wave power, or to prevent scouring of a coastal embankment or a riverbed. For this purpose, square blocks made of concrete or irregular blocks, such as those known under the trademark Tetra Pot, are often used. These are integrally formed and have various shapes, and some of them are heavy and reach several tens tons.

[0003] As a concrete block connecting body, there is a one-stage planar structure described in Japanese Patent Publication No. 7-42689 according to the invention of the present applicant. This concrete block connected body matches the shaft holes while digging the ends of the plurality of short block units and long block units, penetrates the connecting rod into the shaft holes, and tightens both ends,
The blocks are formed as a bendable chain-like structure, and the linked blocks are combined so that the end faces of the short block and the long block are aligned at the front end and the rear end.

[0004]

The conventional block made of concrete having a single structure can be easily manufactured by pouring concrete into a molding die, so that the manufacturing cost can be reduced.
Since the molding mold is large and the weight of the block is heavy, there is a problem that the production place is limited, and a large vehicle and a large heavy machine are required for transportation and loading to the site. As a result, there is also a problem in that when there is a strong external force such as a wave, there is no place for the force to escape and the robot moves and falls.

[0005] Further, in the above-mentioned concrete block linked body, since it is a combination of block units, there is no limitation on the manufacturing place of the block unit, and if assembled at the site, it can be easily transported or brought to the site. However, there is a problem that the effect of the three-dimensional structure in which the block itself directly disperses and absorbs the energy of the wave rushing is small because the structure is simply a two-dimensional structure covering the surface.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an assembling concrete block which forms a three-dimensional structure capable of directly dispersing and absorbing the energy of a rushing wave when the block units are assembled and connected, and a civil engineering structure using the block. is there.

[0007]

According to the present invention, there is provided an assembled concrete block comprising a plurality of short block units and at least one of a plurality of long block units, each having a spacer member interposed therebetween, if necessary. And a three-dimensionally assembled concrete block that is connected in a plurality of rows by connecting members through connecting holes provided at right angles to the concrete block. Both the short block unit and the long block unit are in contact with the end face and upper and lower surfaces having trapezoidal convex portions on both sides,
It is formed in a rectangular shape composed of both side surfaces and both end surfaces. The short block unit has two connection holes, and the long block unit has three connection holes. The connection holes are provided at right angles to the side surfaces at an intermediate position between the upper surface and the lower surface, and the distance between the centers of the connection holes is provided. Are all the same. The end face is formed at a position such that the distance between the line of intersection between the end face and the upper and lower faces and the center of the connection hole closest to the end face is approximately の of the distance between the centers of the connection holes. The distance between the top surfaces of the trapezoidal protrusions provided on the upper surface and the lower surface is substantially equal to the distance between the centers of the connection holes, and the distance between the top surfaces of the trapezoidal protrusions provided on the upper surface and the lower surface. The upper and lower surfaces and the trapezoidal top surface are formed such that the sum of the distance between the upper surface and the lower surface is approximately 1.73 times the distance between the centers of the connection holes.

[0008] The spacer member may be a protrusion having a predetermined height integrally formed with the block unit around the connection hole on one side of the short block unit and the long block unit. A lateral hole may be drilled through both sides of the long block unit, and a trapezoidal projection may be provided near the center of the upper and lower surfaces of the long block unit.

The center of the connecting hole of the short block unit and the center of the long block unit constituting the assembled concrete block are respectively arranged in four lines on two parallel upper and lower lines, and the center of the connecting hole on the upper and lower straight lines is One long block unit is disposed above and below the upper row and the lower row corresponding to the center of the three connection holes from the center of the connection hole at one end of the upper row and the lower row, respectively. Row A in which one short block unit inclined at 60 degrees corresponding to the center of one connecting hole at the other end of the lower row is arranged,
One long block unit is disposed above and below one end of the upper row and the lower row corresponding to the center of the three connection holes from the center of the connection hole at one end of the upper row and the lower row opposite to row A. Row B in which one short block unit inclined at 60 degrees corresponding to the center of one connection hole is arranged in such a manner that the corresponding same connection holes are aligned in a predetermined arrangement. The connection hole may be tightened by a connection member with a spacer member interposed between desired rows, and the whole may be formed in a diamond shape.

[0010] The center of the connection hole between the short block unit and the long block unit constituting the assembled concrete block is aligned with two parallel upper and lower straight lines, each having an upper row of 3 rows.
And four in the lower row, the centers of the connecting holes on the upper and lower straight lines are arranged so as to form an equilateral triangle, respectively. In the lower row, one short block unit is arranged corresponding to the center of the three connecting holes, and one long block unit is arranged corresponding to the center of the three connecting holes. The row A in which one short block unit inclined at 60 degrees corresponding to the center of the connection holes is arranged, and the row B arranged in line symmetry with the row A correspond to each other in a predetermined arrangement. The same connecting holes may be arranged so as to coincide with each other, and the connecting holes may be tightened by a connecting member with a spacer member interposed between desired rows, and the whole may be formed in a trapezoidal shape.

The arrangement of the centers of the connection holes of the long block units constituting the assembled concrete block is arranged in one line so that a regular triangle having one side as a line connecting the four connection holes arranged on a straight line is formed. Row A in which three long block units are arranged on the extension line connecting the centers of the respective connection holes such that the centers of the connection holes at the ends of the adjacent long block units coincide with each other; With the arranged B row,
In a predetermined arrangement, each corresponding identical connection hole is arranged so as to coincide with each other, and the connection hole is tightened by a connection member with a spacer member interposed between desired rows, even if the whole is formed in a triangular shape. Good.

[0012] In the civil engineering structure using the assembled concrete block of the present invention, the above-mentioned assembled concrete block for civil engineering is continuous so that outer surfaces formed from upper and lower surfaces of a block unit forming the assembled concrete block are in contact with each other. The concrete blocks are arranged side by side and are arranged side by side on the underground including one or more rows of riverbeds.

The triangular shaped concrete blocks for civil engineering are continuously arranged so that the surfaces forming the triangle are in contact with each other, and the continuously arranged assembled concrete blocks are arranged in one or more rows on the underwater ground. And may be configured as a wave-absorbing structure that resists external force.

[0014] In the assembled concrete block according to the present invention, the long and short block units are connected in parallel at predetermined intervals to form an integrated assembled concrete block. An equilateral triangular shape that cannot rotate between the block units at all, and a trapezoidal shape type in which the block units can slightly rotate around the axis of the connecting member,
Those having various forms and functions, such as a diamond-shaped one in which adjacent block units can be rotated by 60 °, can be formed.

[0015] In a regular triangular assembled concrete block which cannot rotate at all between the block units, since the block units in each row are maintained at a predetermined interval by the spacer, waves are generated on the upper surface of the block units. When colliding, the wave is cut off on this surface, and a small triangular opening is formed in the center along with the outer triangle formed by the block unit on the side of the block unit, and further penetrates into the middle between the block unit connection holes By providing the horizontal hole, the waves colliding from the side are stirred, and the energy is well absorbed.

The trapezoidal shape which can rotate slightly around the axis of the connecting member between the block units and the rhombus shape which can rotate by 60 ° are almost the same in function and effect as the equilateral triangle shape. The fact that a part of the block unit constituting the assembled concrete block can rotate means that the assembled concrete block can be deformed to some extent by an external force. That is, by deformation
External force will be absorbed by that much.

Even if the object is deformed, it is safe if the center of gravity is stable and does not move. The center of gravity of the trapezoidal or rhombic shape is on the bottom surface within the range of rotation of the block unit. Therefore, the assembled concrete block of the present invention exactly mechanically meets this condition.

Further, the long and short block units each have large trapezoidal projections on both the upper and lower surfaces, each of which is integrated with the main body.
Since three or three protruding members are provided, the assembled concrete block of the present invention has a large number of irregularities on the entire periphery of the connected body as a whole, in the vertical and horizontal directions. In addition to having a wave effect, when this assembled concrete block is stacked and installed, the upper and lower left and right convex parts and the concave parts are in a relationship that mesh with each other, so that a stable loading structure with good stability can be efficiently constructed. Become.

[0019]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an outline view of a block unit used in the first embodiment of the present invention.
(A) is a perspective view of the short block unit, (b) is a side view of the short block unit, (c) is an end view of the short block unit, (d) is a perspective view of the long block unit, and (e).
FIG. 2 is a side view of the long block unit, and FIG. 2F is an end view of the long block unit. In the figure, reference numeral 11 denotes a short block unit, 12 denotes a long block unit, 13 denotes a trapezoidal convex portion,
14 is a concave portion, 15 is a spacer portion, 16 is a connection hole, and 17 is a horizontal hole.

The assembled concrete block according to the present invention comprises a concrete short block unit 11 as shown in FIGS. 1 (a), 1 (b) and 1 (c) and a longer block unit 11 shown in FIGS. Since the concrete long block units 12 as shown in (f) are formed by being tightened by combining and connecting members, the shapes of these block units will be described first.

The short block unit 11 has a substantially rectangular parallelepiped shape formed of upper and lower surfaces, both side surfaces, and both end surfaces. The trapezoidal protrusions 13 are formed at positions contacting both ends of the upper and lower surfaces. A large concave portion 14 is formed between the trapezoidal convex portions 13 at both ends of the upper and lower surfaces.
Also, two connecting holes 16 are formed at right angles to the side surface at an intermediate position between the upper and lower surfaces of the side surface at a predetermined center line interval, and a truncated conical spacer is provided on one side surface surrounding the connecting hole 16. A portion 15 is integrally protruded, and a lateral hole 17 that penetrates the short block unit 11 at right angles to the side surface is formed in a side surface between the two connection holes 16.

The long block unit 12 also has a substantially rectangular parallelepiped shape formed of upper and lower surfaces, both side surfaces, and both end surfaces, and has a trapezoidal protrusion at each of the positions contacting both ends of the upper and lower surfaces and at the center. A portion 13 is formed, and a large concave portion 14 is formed between the trapezoidal convex portions 13 on each of the upper and lower surfaces. Also, three connecting holes 16 are formed at right angles to the side surface at an intermediate position between the upper and lower surfaces of the side surface with a predetermined center line interval therebetween, and a frusto-conical spacer portion is provided on one side surface surrounding the connecting hole 16. 15 are integrally formed, and two lateral holes 17 are formed in the middle side surface of two adjacent connection holes 16 so as to penetrate the long block unit 12 at right angles to the side surface.

The distances between the centers of the connection holes 16 provided in the short block unit 11 and the long block unit 12 are all the same. The end face has an intersection line between the end face and the upper and lower faces,
It is formed at a position such that the distance from the center of the connection hole 16 closest to the end face thereof is approximately の of the distance between the centers of the connection holes 16. Trapezoidal protrusions 13 provided on upper and lower surfaces
Is approximately equal to the distance between the centers of the connection holes 16, and the sum of the distance between the top surfaces of the trapezoidal protrusions provided on the upper and lower surfaces and the distance between the upper surface and the lower surface is equal to the distance between the connection holes. The upper and lower surfaces and the trapezoidal top surface are formed to be approximately 1.73 times the distance between the centers. The width is the same for the short block unit 11 and the long block unit 12.

By forming the short block unit 11 and the long block unit 12 in such a dimensional relationship, the short block unit 11 and the long block unit 12 are formed.
When the assembled concrete blocks are combined with each other, the block units in the same row can support each other and maintain a stable shape without imposing an excessive load on the connecting member, and easily rotate in a rotatable form. It becomes possible.

In this embodiment, the spacer portion 15 is formed integrally with the block unit. However, the spacer portion 15 may be attached as an independent member between the block units during assembly. Also, the side hole 17 and the long block unit 12
Even if the central trapezoidal projection 13 is not provided, there is no problem in assembling the assembled concrete block, so that it can be omitted.

FIGS. 2A and 2B are external views of a diamond-shaped assembled concrete block according to the first embodiment of the present invention, wherein FIG. 2A is a side view, FIG. 2B is an end view, and FIG. FIG. 3D is a side view of the unit, and FIG. 4D is an end view of a different arrangement. In the figure, reference numeral 11 denotes a short block unit, 12 denotes a long block unit, 18 denotes a connecting member, 20 denotes a diamond-shaped assembled concrete block, 21 denotes a row A, and 22 denotes a row B.

In the diamond-shaped assembled concrete block 20 of the present embodiment, the short block unit 11 and the long block unit 1
The center of each of the connection holes 16 on the upper and lower straight lines is arranged on the upper and lower straight lines.
The centers of 6 are arranged so that each forms an equilateral triangle. Three connection holes 16 from the center of the connection holes 16 at one end of the upper row and the lower row as shown in FIG.
One long block unit 12 is arranged at each of the upper and lower sides corresponding to the center of one, and one short block unit inclined 60 degrees corresponding to the center of each one connection hole 16 at the other end of the upper row and the lower row. 1 (c), and three rows from the center of the connection hole 16 at one end of the upper row and the lower row opposite to the row A as shown in FIG.
One long block unit 12 is arranged at the top and bottom corresponding to the center of each of the connection holes 16, and is inclined 60 degrees corresponding to the center of each one connection hole 16 at the other end of the upper row and the lower row. B row 2 in which the short block units 11 are arranged
There are two combinations. A row 21 and B row 22 are arranged in a predetermined arrangement so that their corresponding identical connection holes coincide with each other, and the connection holes are tightened by the connection member 18 with the spacer portion 15 interposed between the rows, The assembled concrete block 20 formed in a rhombus shape is formed. The connecting member 18 is usually a combination of a bolt and a nut having predetermined strength and length.

By arranging in this manner, the long block units 12 constituting the horizontal portion are overlapped so that the upper and lower trapezoidal convex portions 13 and the concave portions 14 mesh with each other, and the short block unit 11 is placed on one slope. Will be. As shown in FIG. 2A, the gaps between the block units in each row are closed in the lateral direction by the block units in another row. Further, in this case, the short block units 11 arranged at an angle of 60 degrees in parallel about the axis of the connecting member 18 are both about 6
It becomes possible to make a line-symmetrical rhombus shape by rotating it 0 times. When an external force acts to rotate the block unit, the external force has to do its work. Therefore, the assembled concrete block of the present invention absorbs external force while the block unit itself is displaced. FIG. 2B shows two rows B between two rows A.
2 shows a state in which two rows are arranged to form a three-row configuration, but the number of rows can be two or four or more rows in any combination. FIG. 2 (d) shows that all the spacer portions 15 of the block units in the outer row A are directed outward. When a plurality of rows of the assembled concrete blocks 20 are continuously arranged, they are easily locked to each other at adjacent portions. Some advantages arise.

FIGS. 3A and 3B are external views of the assembled concrete block of the diamond-shaped application example of the first embodiment. FIG. 3A is a side view, FIG. 3B is an end view, and FIG. It is a side view of a unit. In the figure, reference numeral 11 denotes a short block unit, 18 denotes a connecting member, 25 denotes a diamond-shaped assembled concrete block, 26 denotes a row A, and 27 denotes a row B.

The diamond-shaped assembled concrete block of FIG. 3 is formed by combining the assembled concrete block of the first embodiment of FIG. The function is the same, except that the length is shortened, and the description is omitted.

FIGS. 4A and 4B are external views of a trapezoidal assembled concrete block according to a second embodiment of the present invention, wherein FIG. 4A is a side view, FIG. 4B is an end view, and FIG. It is a side view of a unit. In the figure, reference numeral 11 is a short block unit, 12 is a long block unit, 18 is a connecting member, 30
Is a trapezoidal shaped concrete block, 31 is row A, 3
2 is column B.

The trapezoidal assembling concrete block 30 according to the second embodiment of the present invention is constructed such that the center of the connecting hole 16 between the short block unit 11 and the long block unit 12 constituting the assembling concrete block 30 is parallel to the upper and lower parts. 2
On the straight line of the row, three are arranged in the upper row and four are arranged in the lower row, and the centers of the connection holes 16 on the upper and lower straight lines are arranged so as to form an equilateral triangle. From the center of the connection hole 16 at one end of the upper row and the lower row, one short block unit 11 corresponds to the center of the two connection holes 16 in the upper row, and the center of the three connection holes 16 corresponds to the lower row. And one long block unit 12 is arranged, and each of the other ends of the upper row and the lower row is 1
The row A in which one short block unit 11 inclined at 60 degrees corresponding to the center of the connection holes 16 is arranged, and the row B arranged in line symmetry with the combination of the row A are arranged in a predetermined arrangement. The corresponding identical connecting holes 16 are arranged so as to coincide with each other, and the connecting holes 16 are tightened by the connecting member 18 with the spacer portion 15 interposed between the rows, so that a trapezoidal assembled concrete block 30 is formed. You.

The trapezoid-shaped assembled concrete block 30 of the present invention can be rotated about the axis of the connecting member 18 by a margin between the blocks. Therefore, it is possible to obtain the same mechanical effect on external force as the rhombus-shaped assembled concrete block.

FIG. 5 is an outline view of a triangular assembled concrete block according to a third embodiment of the present invention, and (a).
3B is a side view, FIG. 3B is an end view, and FIG. 3C is a side view of a block unit in row B. In the figure, reference numeral 11 denotes a short block unit, 12 denotes a long block unit, 18 denotes a connecting member,
0 is a triangular assembled concrete block, 41 is A
Column 42 is column B.

In the trapezoidal assembling concrete block 40 according to the third embodiment of the present invention, the connection hole 1 of the long block unit 12 constituting the assembling concrete block 40 is provided.
6 are arranged in a line, and four connection holes 1 are arranged on a straight line.
6 are arranged so as to form an equilateral triangle having a line segment connecting 6 as one side. The first A in which three long block units 12 in one row are arranged on the extension line connecting the centers of the respective connection holes 16 such that the centers of the connection holes 16 at the ends of the adjacent long block units 12 coincide. The combination of the row and the combination of the row A and the combination of the row B arranged in line symmetry are arranged in a predetermined arrangement such that the corresponding corresponding connection holes 16 coincide with each other. Tightened by the connecting member 18 with the spacer portion 15 interposed therebetween, a triangular assembled concrete block 20 is formed.

An equilateral triangular assembled concrete block 40 that cannot rotate between the block units at all.
Since the block units in each row are held at a predetermined interval by the spacer unit 16, when a wave collides with the upper surface of the block unit, the wave is cut at this surface,
Further, a small triangular opening is formed in the center along with the outer triangle formed by the block unit on the side surface of the block unit, and a horizontal hole 17 is also provided in the middle between the block unit connection holes, so that Waves that collide from the side are agitated and their energy is well absorbed.

Next, a civil engineering structure using the assembled concrete block for civil engineering of the present invention will be described. FIG. 6 is a side view of the civil engineering structure using the diamond-shaped assembled concrete block according to the first embodiment.
Is a diamond-shaped concrete block, 61 is a rubble foundation, 6
2 is large stone, 63 is the top of rubble, 64 is the slope of rubble, 6
5 is a connection block.

FIG. 6 shows a short block unit 11 as a first row on the tip end surface of a rubble base 61 formed of a large stone 62 based on a connecting block in which a short block unit 11 and a long block unit 12 are combined. And the long block unit 12 are arranged in two steps so that the rhombus-shaped assembled concrete block 20 in which the side surface is in contact with the tip surface of the rubble foundation 61 and the height exceeds the top end 63 of the rubble stone. As the second row, a diamond-shaped assembled concrete block 25 formed of only the short block unit 11 is continuously formed so that its end face is in contact with the other side surface of the diamond-shaped assembled concrete block 20 along the rubble slope 64. The civil engineering structure for protection of the rubble foundation 61 is formed in a one-stage manner. By arranging the assembled concrete blocks continuously at the ends and the corners of the rubble foundation 61 in this manner, the outflow of the rubble at the corners in the first and second rows is suppressed, and the wave-dissipating effect is simultaneously achieved. It can be demonstrated. The one shown in this figure is an example, and various combinations are conceivable according to the local situation.

FIG. 7 is a side view of a civil engineering structure using a triangular assembled concrete block according to the third embodiment. In the figure, reference numeral 40 denotes a triangular assembled concrete block, 70 denotes an embankment, and 71 denotes a bank body. Lattice wave breaking laying material, 72 is a triangular cavity, 73 is split stone, 74 is cast-in-place concrete,
75 is a connected concrete block, and 76 is a large stone.

FIG. 7 shows an embodiment of a bank body using the triangular assembled concrete block 40 of the present invention.
Alternatively, a grid-like wave-breaking laying material 71 (Tokuhei 8-1)
No. 9658) is installed, and the outer surfaces formed from the upper and lower surfaces of the short and long block units 11 and 12 forming the assembled concrete block 40 are arranged in rows or stacked so as to be in contact with each other. Since the triangular prefabricated concrete block 40 of the present invention has a porosity of about 47% itself and weighs several tens tons, it becomes a stable and excellent wave-absorbing structure. Also, the triangular cavity 72 at the center of the main body is a good fish reef. When the triangular shaped concrete blocks 40 are installed with their bottoms aligned, even if the triangular shaped concrete blocks 40 are inverted and inserted as shown in the first stage of FIG. Alternatively, as shown in the second row in FIG. 7, a broken stone 73 having a size that does not pull out from the gap of the triangular concrete block 40 may be filled. In this case, it is desirable to apply a cast-in-place concrete 74 on the upper part so as to prevent the broken stone from being blown off at the uppermost part. In order to prevent the split stone 73 from falling off from the side surface, the triangular shaped concrete block 40 which is inverted at both ends is used.
Is sufficient.

Further, around the foundation of the embankment body 70 formed by the triangular assembled concrete block 40, a connected concrete block is placed on a grid-like wave breaking laying material 71 in order to reduce the influence of scouring due to waves and currents. Laying 75,
When a large stone 76 of about 300 kg is put between the embankment 70 and the load, the connected concrete block 75 is dispersed by the lattice-shaped wave-breaking laying material 71, so that the concrete block 75 sinks substantially horizontally. Since the sinking occurs, scouring of the lower surface of the embankment 70 is minimized.

FIG. 8 is a side view of another civil structure using a triangular assembled concrete block according to the third embodiment, in which reference numeral 40 is a diamond-shaped concrete block, 80 is a weir, and 82 is a weir. Triangular cavity, 83 is the base slab,
89 is mud and stone.

FIG. 8 shows an embodiment of a weir using the triangular prefabricated concrete block 40 of the present invention. The triangular concrete block 40 forms a prefabricated concrete block 40 so as to cross a river. It is a weir formed by arranging on the base split stone 83 such that the outer surfaces formed from the upper and lower surfaces of the units 11 and 12 are in contact with each other. If you block with a completely solid structure without voids,
It is known that fish cannot go up and is not good for the natural environment. In the assembled concrete block of the present invention, since there is a gap, the debris 89 flowing from the upstream accumulates on the upstream side or is clogged between the block units, thereby forming a weir having a small gap. Therefore, while having the effect of blocking the river water to some extent, the momentum of the overflowing water is also weakened, making it easier for fish to go up, and the small gaps are a good habitat for small underwater animals, and the river's original The natural environment will be restored.

[0044]

As described above, the assembled concrete blocks according to the present invention form a row by combining long and short block units of a size and shape that can be combined with each other, so that various forms such as rhombus, trapezoid, and triangle are used. It is possible to form an assembling concrete block with only connecting members that pass through the connecting holes by being connected in parallel at predetermined intervals by a method such as combining lines that have become symmetrical and integrating them. Therefore, there is an effect that many types of assembled concrete blocks can be created only by combining two types of block units and connecting members corresponding to the number of rows.

In addition, since only two types of block units and connecting members corresponding to the number of rows need to be prepared, mass production in a factory is possible, and since individual members are lightweight, they can be easily transported and assembled, thereby reducing costs. There is an effect that can be.

The block units in each row are held at a predetermined interval by a spacer, and a trapezoidal convex portion is provided on the upper surface of the block unit. The side surface of the block unit is further cut off, and a side hole penetrating in the middle between the block unit connection holes is provided,
Since the triangular assembled concrete block also has a triangular space in the center, the waves colliding from the side are agitated and their energy is well absorbed.

In the case of a trapezoidal shape that can rotate slightly around the axis of the connecting member between the block units or a rhombic shape that can rotate by 60 °, the external force can be absorbed by the displacement of the block units. In the range of rotation, the center of gravity is on the bottom surface, so that a stable state is maintained.

Further, the long and short block units have large trapezoidal projections on both the upper and lower surfaces thereof, each of which is integrated with the main body.
Since three or three protruding members are provided, the assembled concrete block of the present invention has a large number of irregularities on the entire periphery of the connected body as a whole, in the vertical and horizontal directions. In addition to having a wave effect, when this assembled concrete block is stacked and installed, the upper and lower left and right convex parts and the concave parts are in a relationship that mesh with each other, so that a stable loading structure with good stability can be efficiently constructed. Become.

When a civil engineering structure is formed by using the assembled concrete block of the present invention, the respective sides are combined to form a stable structure of a levee or a weir, and there is a gap to disperse external forces due to waves and currents. Therefore, it is possible to prevent movement and falling even with a sudden external force, and furthermore, there is an effect that the gap between the block units becomes a suitable habitat for small underwater animals.

[Brief description of the drawings]

FIG. 1 is an external view of a block unit used in a first embodiment of the present invention. (A) is a perspective view of a short block unit. (B) is a side view of the short block unit. (C) is an end view of a short block unit. (D) is a perspective view of the long block unit.
(E) is a side view of the long block unit. (F) is an end view of a long block unit.

FIG. 2 is an outline view of a diamond-shaped assembled concrete block according to the first embodiment of the present invention. (A) is a side view. (B) is an end view. (C) is a side view of the block unit in row B. (D) is an end view of a different arrangement.

FIG. 3 is an outline view of an assembled concrete block of a diamond-shaped application example of the first embodiment. (A) is a side view. (B) is an end view. (C) is a side view of the block unit in row B.

FIG. 4 is an external view of a trapezoidal assembled concrete block according to a second embodiment of the present invention. (A) is a side view. (B) is an end view. (C) is a side view of the block unit in row B.

FIG. 5 is an outline drawing of a triangular assembled concrete block according to a third embodiment of the present invention. (A) is a side view. (B) is an end view. (C) is a side view of the block unit in row B.

FIG. 6 is a side view of the civil engineering structure using the diamond-shaped assembled concrete block of the first embodiment.

FIG. 7 is a side view of a civil engineering structure using a triangular assembled concrete block according to a third embodiment.

FIG. 8 is a side view of another civil engineering structure using a triangular assembled concrete block according to the third embodiment.

[Explanation of symbols]

 Reference Signs List 11 short block unit 12 long block unit 13 trapezoidal convex part 14 concave part 15 spacer part 16 connecting hole 17 side hole 18 connecting member 20 rhombus-shaped assembled concrete block 21, 26, 31, 41 A row 22, 27, 32, 42 Row B 25 Assembled concrete block with rhombus 30 Assembled concrete block with trapezoidal shape 40 Assembled concrete block with triangular shape 61 Foundation of rubble stone 62 Large stone 63 Top of rubble stone 64 Slope of rubble stone 65 Connecting block 70 Embankment 71 Grid-like wave breaking Laying material 72 Triangular cavity 73 Split stone 74 Cast-in-place concrete 75 Connected concrete block 76 Large split stone 80 Weir 82 Triangular cavity 83 Base split stone 89 Debris

Claims (9)

[Claims] 1. A connecting member for connecting at least one of a plurality of short block units and a plurality of long block units through a connecting hole formed in a side surface of the block unit at right angles with a spacer member interposed therebetween as necessary. And a three-dimensionally assembled concrete block for civil engineering, the short block unit and the long block unit each having a trapezoidal convex part on both sides in contact with an end face. The short block unit has two connection holes, the long block unit has three connection holes, and is formed in a rectangular shape including upper and lower surfaces, both side surfaces, and both end surfaces. The connection hole is provided at a middle position between the upper surface and the lower surface and at a right angle to the side surface, and a distance between centers of the connection holes is all the same, The surface is formed at a position such that the distance between the line of intersection between the end surface and the upper and lower surfaces and the center of the connection hole closest to the end surface is substantially half the distance between the centers of the connection holes. The distance between the top surfaces of the trapezoidal protrusions provided on the upper surface and the lower surface is substantially equal to the distance between the centers of the connection holes, and between the top surfaces of the trapezoidal protrusions provided on the upper surface and the lower surface. The upper and lower surfaces and the trapezoidal top surface are formed such that the sum of the distance and the distance between the upper surface and the lower surface is approximately 1.73 times the distance between the centers of the connection holes. Assembled concrete block for civil engineering. 2. The device according to claim 1, wherein the spacer member is a protrusion having a predetermined height formed integrally with the block unit around the connection hole on one side surface of the short block unit and the long block unit. An assembled concrete block for civil engineering as described. 3. The assembled concrete block for civil engineering according to claim 1, wherein a lateral hole is formed in the middle of the adjacent connection holes so as to penetrate both side surfaces. 4. The prefabricated concrete block for civil engineering according to claim 1, wherein a trapezoidal projection having substantially the same shape as the trapezoidal projection is disposed near a center of the upper and lower surfaces of the long block unit. 5. The center of the connecting hole between the short block unit and the long block unit constituting the assembled concrete block is arranged four each on two parallel upper and lower straight lines, and The centers of the connection holes are arranged so as to form an equilateral triangle, and one of the long block units corresponding to the centers of the three connection holes from the center of the connection holes at one end of the upper row and the lower row. Are arranged, and a combination of a first single row in which one short block unit inclined by 60 degrees corresponding to the center of one connecting hole at the other end of each of the upper row and the lower row is disposed, 1
One long block unit is disposed above and below the upper row and the lower row corresponding to the center of the three connection holes from the center of the connection hole at one end of the upper row and the lower row opposite to the combination of the one row. 60 corresponding to the center of one connecting hole at the other end of the lower row, respectively.
The combination of the second row in which one short block unit inclined at an angle is arranged in a predetermined arrangement so that the corresponding corresponding connection holes coincide with each other. 5. The assembled concrete block for civil engineering according to claim 1, wherein the assembled concrete block is tightened by the connecting member with a spacer member interposed between the rows, and formed in a rhombic shape as a whole. 6. The center of the connecting hole between the short block unit and the long block unit constituting the assembled concrete block is three in the upper row and four in the lower row on two parallel upper and lower straight lines, respectively. The upper and lower rows are connected to the center of two connecting holes from the center of the connecting holes at one end of the upper row and the lower row. One long block unit is arranged corresponding to the center of three connection holes in the lower row, and one short block unit corresponding to the other end of the upper row and the lower row in the lower row. A first one-row combination in which one short block unit inclined at 60 degrees corresponding to the center of the hole is arranged, and a second combination arranged in line symmetry with the first one-row combination. The combination of one row of The same connecting holes are arranged so as to coincide with each other, and the connecting holes are tightened by the connecting member with a spacer member interposed between desired rows, and the whole is formed in a trapezoidal shape. The assembled concrete block for civil engineering according to any one of the above. 7. The arrangement of the centers of the connecting holes of the long block units constituting the assembled concrete block forms an equilateral triangle having one side as a line connecting the four connecting holes arranged on a straight line. A first row in which three long block units in one row are arranged on the extension line connecting the centers of the respective connection holes such that the centers of the connection holes at the ends of the adjacent long block units coincide with each other. And the combination of the first single row and the combination of the second single row arranged in line symmetry are arranged in a predetermined arrangement such that the corresponding identical connection holes coincide with each other. The civil engineering assembly according to any one of claims 1 to 4, wherein the connection hole is tightened by the connection member with a spacer member interposed between desired rows, and is formed in a triangular shape as a whole. Concrete block. 8. A plurality of assembled concrete blocks for civil engineering according to claim 5 to 7 are continuously arranged such that outer surfaces formed from upper and lower surfaces of a block unit forming the assembled concrete block are in contact with each other. A civil engineering structure for rivers and seas, wherein the continuously arranged assembled concrete blocks are formed side by side on a submarine ground including at least one row of riverbeds. 9. A plurality of assembled concrete blocks having a triangular shape according to claim 7, wherein the triangular surfaces of the assembled concrete blocks for civil engineering are continuously arranged so as to be in contact with each other, and the continuously arranged concrete is arranged. The civil engineering structure according to claim 8, wherein the blocks are arranged as one or more rows on the underwater ground and configured as a wave-breaking structure that resists external force.