JPH0724415Y2 - Split block - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a divided block composed of an upper block and a lower block.

[0002]

2. Description of the Related Art For revetments that prevent erosion of rivers and coasts,
Various types of concrete blocks are used, and fixed-wall concrete blocks are tightly packed on the slopes of rivers, etc. to form a revetment wall. By the way, such revetment walls tend to give a disproportionate impression to the surrounding natural landscape because they have a structure in which artificially shaped concrete blocks are laid out in an orderly manner. A huge stone revetment is known. However, since large amounts of natural stones are required for this type of megalithic revetment, it has become increasingly difficult to extract it in recent years, and at the same time, the extraction site is often far from the revetment construction site, and it is difficult for the transport vehicle to enter. There are many places. Therefore,
First of all, it is necessary to set up a temporary road through which construction vehicles can pass to such a collection site, and the number of megaliths that can be used for revetment is limited. It's getting harder. Also, in actual construction, when stacking megaliths on slopes such as rivers,
Usually, wire ropes are hung on the cross and piled up, but it is difficult to adjust the angle at the time of installation or to remove the wire rope after installation, so it is often the case that one wire rope is hung. . In addition, there is a problem in safety when hoisting with a method of hoisting with one wire rope. Furthermore, in megalithic revetments, it is important not only that the piled up megaliths function as a revetment, but it is important to construct a revetment that matches the surrounding natural landscape. Since it is necessary to stack while considering the appearance, the skill of the worker is required, and even after once stacking, if the mesh with the lower stage and the balance with the surrounding are bad, the size of the huge stone to be used again, There is a problem that the workability is inferior because it is a troublesome work of examining the shape etc. and reloading. Considering the difficulty of collecting such huge stones and complicated construction work, for example, as shown in FIG. 18, the upper part A is modeled as a natural stone, and the lower part B is constructed by a concrete block C formed in a fixed shape to construct a revetment. Can be built.

[0003]

By laying the above-mentioned conventional concrete block C on the slope, an upper part A imitating natural stone appears on the surface, and a revetment suitable for the surrounding landscape can be constructed. . However, since the upper part A is imitated as a natural stone, the upper part A has an irregular shape, and it is difficult to install the upper parts A and A of the adjacent concrete blocks C and C in close contact with each other. Since a local load is likely to be concentrated on a part of the seawall due to D, there is a problem that the entire structure of the seawall tends to be unstable. Further, since the upper portion A is integrally provided on the lower portion B, there is a problem that the weight of the concrete block C increases and the hanging and installation work becomes complicated.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a divided block which has an excellent external appearance and can be improved in workability.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, a lower surface of an upper block and an opposed surface provided on an upper portion of the lower block, respectively, and a convex arc on a tip of the opposed surface are provided. A protruding portion having a surface, a lateral groove portion having a height dimension shorter than that of the protruding portion on the other opposing surface and allowing the protruding portion to be loosely inserted from a side portion of the block, and formed on a bottom surface of the lateral groove portion. The convex arcuate surface is provided with a slidable concave arcuate surface, and a retaining portion formed in the lateral groove portion at a distance from the projection portion and engaging with a tip of the projection portion.

[0006]

With the above structure, the projecting portion of the upper block is loosely inserted into the lateral groove portion of the lower block from the side portion of the lower block after installation, and the upper block is swingably connected to the lower block. In addition, the position and the inclination of the upper block are adjusted to assemble the adjacent upper blocks without any gap between them.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 6 show a first embodiment of the present invention, a divided block 1 made of concrete is composed of an upper block 2 and a lower block 3, and the lower block 3 is a flat hexagonal base. A pedestal portion 5 is integrally provided on the portion 4, and insertion holes 7 through which the connecting reinforcing bars 6 are inserted are formed on the left and right sides of the base portion 4, respectively.
In the upper block 2, a head 9 is integrally formed on a hexagonal body portion 8, and a lower surface 10 which is an opposing surface of the body portion 8 has a substantially cylindrical protrusion portion located at the center thereof. 11 is projectingly provided, and the tip of the projecting portion 11 is enlarged to form a convex arc surface 12 forming a part of a substantially spherical surface. The lower block 3
The pedestal portion 5 has an upper surface 13, and the upper surface that constitutes this facing surface.
13 is provided to face the lower surface 10. On the upper surface 13 of the lower block 3, as shown in FIG.
Is formed with a lateral groove portion 14 which can be loosely inserted from the side portion of the lower block 3, and the lateral groove portion 14 is formed to have a height dimension shorter than that of the protruding portion 11 and from one side of the lower block 3. Provided in communication with the other side, a concave arc surface 15 on which the convex arc surface 12 is slidable is formed at the bottom of the lateral groove portion 14, and the concave arc surface 15 is the convex arc surface 12 It has a larger curvature. Further, as shown in FIG. 1, on both sides of the upper edge of the lateral groove portion 14, by engaging with the tip of the protrusion portion 11,
A retaining portion 16 is formed to prevent the upper portion from coming off, and the retaining portion 16 is formed at a distance from the protrusion 11 so that the upper block 2 can swing forward, backward, leftward and rightward. Further, the head portion 9 of the upper block 2 is formed by imitating an indefinite natural stone, and is formed in an appropriate shape such as cobblestone or rubble stone.

Next, the construction of a seawall using the divided blocks 1 will be described. First, a basic block along a river
17 is formed to form a slope 18, and a flat hexagonal lower block 3 is laid on the slope 18 with no gaps and with the respective lateral groove portions 14 aligned from top to bottom as shown in FIG. , The connecting rebar 6 is further inserted into each through hole 7 and the lower block 3 is inserted.
Connect with each other. Then, when the laying of the lower block 3 is completed, the protrusion 11 of the upper block 2 is loosely inserted into the lateral groove portion 14 from the upper side portion of the uppermost lower block 3.
Further, the lower block 3 is moved downward along the side-by-side lateral groove portions 14 to be inserted and arranged in the predetermined lateral groove portion 14 of the lower block 3, and the upper block 2 is swingably connected to the lower block 3.
At this time, the position of the protrusion 11 in the lateral groove 14 is adjusted, and the convex arc surface 12 is slid on the concave arc surface 15 to adjust the front, rear, left, and right inclinations of the upper block 2 so as to adjust the adjacent upper parts. Assemble the blocks 2 between the sides without any gaps. On the other hand, each time one lower block 3 is laid, the upper block 2 may be connected to the lower block 3.

As described above, in this embodiment, the lower surface of the upper block 2 and the upper surface of the lower block 3, which are opposed to each other, are the upper surface 13 and the lower surface 10, and the lower surface 10 of the upper block 13 and the lower surface 10. Projection with convex arc surface 12 at the tip
11 and a lateral groove portion which is formed on the upper surface 13 so as to have a height dimension shorter than that of the protrusion 11 so that the protrusion 11 can be loosely inserted from the side of the lower block 3.
14, a concave arc surface 15 formed on the bottom surface of the lateral groove portion 14 on which the convex arc surface 12 is slidable, and a protrusion 11 formed in the lateral groove portion 14 at a distance and engaged with the tip of the protruding portion 11. Retaining part 16
Since the lower block 3 is laid on the slope 18, the projection 11 of the upper block 2 is inserted into the lateral groove 14 of the lower block 3 to connect the two blocks 2 and 3. Then, the inclination and position of the upper block 2 can be adjusted so that the upper block 2 can be laid without a gap,
A stable revetment structure can be obtained. Also, the lower block 3
Since the upper block 2 and the upper block 2 can be laid separately, the weight of a single block to be carried can be reduced and the workability can be improved. Furthermore, in addition to the construction method in which the lower block 3 and the upper block 2 are laid one by one, after the plurality of lower blocks 3 are laid, the upper block 2 is moved along the aligned lateral grooves 14. It can also be installed. Further, since the slip-off preventing portion 16 is formed in the lateral groove portion 14, the projecting portion 11 that is loosely inserted from the side portion does not come off, so that the upper block 2 can be stably constructed.

Further, as an effect of the embodiment, by molding the head 9 of the upper block 2 into a shape imitating natural stone, the surface of the revetment constructed by the divided blocks 1 may show megalithic mess. The result is an exterior design that matches the surrounding natural landscape. Further, by laying the lower block 3 having a flat hexagonal shape without a gap, it is possible to obtain the function of a revetment that protects the slope 18 only by the lower block 3, and the upper block 2 is adjacent to the adjacent blocks. Since it can be laid so that the left and right sides contact each other, a highly stable revetment structure can be obtained.

FIGS. 7 and 8 show a second embodiment of the present invention. The same parts as those of the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. The block 2 is provided with a protrusion 11 directly downward from the lower surface 10 of the head 9 without providing a body. A flat hexagonal body portion 8A is integrally provided on the pedestal 5 of the lower block 3, and a lateral groove portion 14 is formed on an upper surface 13 of the body portion 8A. Then, by adjusting the front, rear, left and right inclinations and positions of the upper blocks 2 to lay the spaces between the upper blocks 2 without a gap, a stable seawall structure can be obtained, and megalithic stones can be expressed on the surface of the seawall. The appearance and design conforming to the natural landscape can be obtained, and the same effects and effects as those of the first embodiment can be obtained. In this example, the lower block 3 is formed with the trunk portion 8A, so that the lower block 3 is sloped 18 Since it has an excellent function as a seawall to protect the upper part of the block 2, the upper block 2 is provided with a protrusion 11 directly from the head 9 without providing a trunk, so the upper block 2 is lightweight and is under construction. Is easy to handle.

9 and 10 show a third embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. 11
The enlarged convex arcuate surface 12A of the tip is formed so as to form a part of a substantially cylindrical shape, and is formed as a plane 9 with respect to the side view of FIG.
The front view in the direction of 0 degree represents the same shape as that in FIG. Then, by adjusting the left and right inclinations and positions of the upper blocks 2 and laying them between the upper blocks 2 without a gap, a stable seawall structure can be obtained, and megalithic turbulence can be expressed on the surface of the seawall. An external appearance design conforming to the natural landscape is obtained, and the same effects and actions as those of the first embodiment are obtained, and in this example, the upper block 2 becomes easy to swing in the left-right direction.

11 and 12 show a fourth embodiment of the present invention. The same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.
Reference numeral 11 is enlarged in a taper shape toward the tip, and a convex arc surface 12B forming a part of a substantially spherical surface is formed at the tip. Further, the lateral groove portion 14A is formed so that the protrusion 11 can be freely inserted from the side portion, and a tapered retaining portion 16 is formed on the upper edge side thereof at a distance from the protrusion 11. Then, by adjusting the left and right inclinations and positions of the upper blocks 2 to lay between the upper blocks 2 without a gap, a stable seawall structure can be obtained, and megalithic turbulence can be expressed on the surface of the seawall.
An external appearance design conforming to the surrounding natural scenery can be obtained, and the same effects and actions as those of the first embodiment can be obtained. Further, in this example, since the outer surfaces of the projections 11 are all arc surfaces, inside the lateral groove portion 14 The protrusion 11 can be moved smoothly.

FIGS. 13 to 17 show a fifth embodiment of the present invention. The same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. A substantially cylindrical projection 11 is provided at the center of the upper surface 13 of the block 3A, and the tip of the projection 11 is enlarged to form a convex arc surface 12 forming a part of a substantially spherical surface. On the lower surface 10 of the upper block 2A, there is formed a lateral groove portion 14 into which the protrusion 11 can be loosely inserted from the side portion of the lower block 3A. The lateral groove portion 14 is higher than the protrusion portion 11 in height. It has a short dimension and is provided so as to communicate from one side to the other side of the body portion 8 of the upper block 2A, and the convex arc surface 12 is slidable on the upper surface which is the bottom of the concave arc. A surface 15 is formed. Further, on both sides of the lower edge of the lateral groove portion 14, the protrusion
A retaining portion 16 that engages with the tip of the protrusion 11 to prevent the protrusion 11 from coming out downward is formed, and the retaining portion 16 allows the upper block 2A to swing to the left and right. It is formed at a distance from 11.

Next, the construction of a seawall using the divided blocks 1 will be described. First, a basic block along a river
17 is formed to form a slope 18, a hexagonal lower block 3A is laid on the slope 18 without a gap, and the connecting rebar 6 is inserted into each insertion hole 7 to form the lower block 3A. Connect with each other. When the lower block 3A has been laid, the lateral groove 14 is aligned with the protrusion 11 of the lower block 3A, and the upper block 2A is placed on the lower block 3A. At this time, the position of the upper block 2A is adjusted, and the concave arc surface 15 is slid on the convex arc surface 12 of the protrusion 11 to adjust the front-rear, left-right inclination of the upper block 2A.
The adjacent upper blocks 2A are assembled with no space between their side portions.

As described above, in this embodiment, the lower surface of the upper block 2A and the upper surface of the lower block 3A, which are opposed to each other, are the upper surface 13 and the lower surface 10.
And a protrusion 11 protruding from the upper surface 13 thereof and having a convex arcuate surface 12 at the tip, and a lower surface 10 having a height dimension shorter than that of the protrusion 11 so that the protrusion 11 is free from the side portion of the upper block 2A. A lateral groove portion 14 that can be inserted, a concave circular arc surface 15 on which a convex circular arc surface 12 formed on the bottom surface of the lateral groove portion 14 is slidable, and a projection 11 on the lateral groove portion 14.
Since the lower block 3A is laid on the slope 18, the lateral groove 14 of the upper block 2A is provided. Is placed in the projection 11 of the lower block 3A to connect the two blocks 2A and 3A, and the upper block 2A
It is possible to lay the space between the upper blocks 2A without any gap by adjusting the inclination and the position of, and to obtain a stable revetment structure. In addition, since the lower block 3A and the upper block 2A can be laid separately, the transport weight of a single block can be reduced and the workability can be improved, and the same effect as the first embodiment, Play an action. Further, as an effect of the embodiment, by molding the head 9 of the upper block 2A into a shape imitating a natural stone, the surface of the seawall constructed by the divided blocks 1 can represent megalithic turbulence, The exterior design that matches the natural landscape of

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, the shape of the protrusion and the shape of the convex arc surface at the tip thereof. The curvature can be appropriately selected, and the shape of the lateral groove portion and the shape and curvature of the concave arc surface of the bottom surface can be appropriately selected. Further, various shapes such as a quadrangle can be used as the planar shape of the lower block.

[0018]

According to the present invention, the lower surface of the upper block and the upper surface of the lower block are opposed to each other, and a projection having a convex arcuate surface at the tip is provided so as to project. Portion, a lateral groove portion having a height dimension shorter than that of the protrusion portion on the other opposing surface and allowing the protrusion portion to be loosely inserted from the side portion of the block, and the convex arc formed on the bottom surface of the lateral groove portion. A concave arc surface whose surface is slidable, and a retaining portion that is formed in the lateral groove portion at a distance from the projection portion and engages with the tip of the projection portion, and is excellent in appearance design, It is possible to provide a divided block capable of improving workability.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing a first embodiment of the present invention.

FIG. 3 is a plan view of a lower block showing a first embodiment of the present invention.

FIG. 4 is a perspective view showing a first embodiment of the present invention.

FIG. 5 is a sectional view of a revetment showing a first embodiment of the present invention.

FIG. 6 is a plan view of an essential part of a seawall showing the first embodiment of the present invention.

FIG. 7 is a front view showing a second embodiment of the present invention.

FIG. 8 is a partially cutaway side view showing a second embodiment of the present invention.

FIG. 9 is a perspective view of an upper block showing a third embodiment of the present invention.

FIG. 10 is a partially cutaway side view showing a third embodiment of the present invention.

FIG. 11 is a front view showing a fourth embodiment of the present invention.

FIG. 12 is a partially cutaway side view showing a fourth embodiment of the present invention.

FIG. 13 is a front view showing a fifth embodiment of the present invention.

FIG. 14 is a side view showing a fifth embodiment of the present invention.

FIG. 15 is a perspective view showing a fifth embodiment of the present invention.

FIG. 16 is a sectional view of a seawall showing a fifth embodiment of the present invention.

FIG. 17 is a plan view of an essential part of a seawall showing a fifth embodiment of the present invention.

FIG. 18 is a side view showing a conventional example.

[Explanation of symbols]

 2,2A Upper block 3,3A Lower block 10 Lower surface (opposing surface) 11 Projection part 12, 12A, 12B Convex arc surface 13 Upper surface (opposing surface) 14 Lateral groove part 15 Concave arc surface 16 Retaining part

Claims (1)

[Scope of utility model registration request] 1. A lower surface of the upper block and an upper surface of the lower block, which are respectively opposed to each other, and a protrusion having a convex arcuate surface at a tip thereof, the protrusion protruding from the one opposing surface, A lateral groove portion which is formed on the other opposing surface to have a height smaller than that of the protruding portion and allows the protruding portion to be loosely inserted from the side portion of the block, and the convex arc surface formed on the bottom surface of the lateral groove portion slides. A divided block comprising: a possible concave arc surface and a retaining portion which is formed in the lateral groove portion at a distance from the projection portion and engages with a tip of the projection portion.