JPH0724413Y2 - 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 an impression that they are disproportionate to the surrounding natural landscape because they have a structure in which artificial fixed-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 install 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, so it is very important to collect natural stones. 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 a megalithic revetment, it is not only necessary for the piled up megaliths to 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 operator is required, and even after stacking once, 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 the complicated construction work, for example, as shown in FIG. 7, 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 form 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 part A is integrally provided on the lower part B, the weight of the concrete block C increases, and there is a problem that 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 The present invention is directed to a lower surface of an upper block and an opposed surface provided to the upper portion of the lower block, and a hemispherical projection protruding from the one of the opposed surfaces. And a hemispherical groove portion formed on the other opposing surface and having a height dimension shorter than that of the hemispherical protrusion portion and allowing the hemispherical protrusion portion to slide.

[0006]

With the above construction, the upper block is placed on the lower block, the groove is slid on the protrusion to adjust the inclination of the upper block, and a gap is provided between the side portions of the adjacent upper blocks. Assemble without.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show a first embodiment of the present invention, in which a divided block 1 molded from concrete comprises 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 bored on the left and right sides of the base portion 4, respectively, and the pedestal portion 5 of the lower block 3 faces each other. A hemispherical projection 9 is provided at the center of the upper surface 8, which is a surface. The upper block 2 is a head on the hexagonal body 10.
11 is integrally formed, and the lower surface which is the opposite surface of the body portion 10
The numeral 12 is provided so as to face the upper surface 8 of the lower block 3. The lower surface 12 of the upper block 2 is formed with a hemispherical groove 13 on which the hemispherical projection 9 can slide, the groove 13 having a larger curvature than the projection 9, and the height dimension of the groove 13 H is formed to be shorter than the height of the protrusion 9. The head portion 11 of the upper block 2 is formed by imitating an irregular shaped natural stone, and is formed in an appropriate shape such as cobblestone or rubble stone. The blocks 2 and 3 are provided with hook portions 14 and 14 made of metal or the like, and the blocks 2 and 3 are connected and fixed by a connecting member 15 such as a shackle via the hook portions 14 and 14. To be done.

Next, the construction of a seawall using the divided blocks 1 will be described. First, a basic block along a river
16 is formed to form a slope 17, on which slope a flat hexagonal lower block 3 is laid without a gap, and each insertion hole 7 is formed.
The connecting rebars 6 are inserted into and the lower blocks are connected to each other. After the laying of the lower block 3 is completed, the hemispherical projections 9 are aligned with the hemispherical groove portions 13, and the upper block 2 is placed on the lower block 3. At this time, the protrusion 9 has a groove 13
Is slid to adjust the inclination of the upper block 2 and the side portions of the adjacent upper blocks 2 are assembled without any gap.
When the inclination of the upper block 2 is determined, the lower block 3 and the upper block 2 are connected and fixed using the connecting member 15.

As described above, in this embodiment, the lower surface 12 and the upper surface 8 which are the facing surfaces provided on the lower portion of the upper block 2 and the upper portion of the lower block 3, respectively, are provided so as to project from the upper surface 8. And a hemispherical groove portion 13 formed on the lower surface 12 and having a height dimension H shorter than that of the hemispherical projection portion 9 and allowing the hemispherical groove portion 9 to slide.
After laying the lower block 3 on the slope 17, the upper block 2 is placed on the lower block 3, the inclination of the upper block 2 is adjusted, and the upper block 2 is centered around the protrusion 9.
Can be laid without gaps between the upper blocks 2 and a stable seawall structure can be obtained. Further, since the lower block 3 and the upper block 2 can be laid separately, the transport weight of a single block is reduced and the workability can be improved.

Further, as an effect of the embodiment, by molding the head portion 11 of the upper block 2 into a shape imitating natural stone, the surface of the seawall 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 hexagonal lower block 3 without any gap, the lower block 3 alone has the function of a revetment for protecting the slope 17, and the upper block 2 is adjacent to the front, rear, left and right. Since it can be laid so that the side surfaces of the shore contact each other, a revetment structure with excellent stability can be obtained. Furthermore, since the groove 13 has a larger curvature than the protrusion 9 and the height dimension H of the groove 13 is shorter than the height dimension of the protrusion 9, the groove 13 and the protrusion 9 partially contact each other. Therefore, the upper block 2 does not require a large force to tilt and the tilt angle can be easily adjusted.

FIG. 5 shows 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.
A hemispherical groove portion 13 is formed on the upper surface 8 of the pedestal 5 facing the upper surface of the base 5, and a hemispherical projection 9 on which the hemispherical groove portion 13 is slidable is projected on the lower surface 12 of the upper block 2A. The groove 13 has a larger curvature than the protrusion 9, and the groove 13
Has a height H smaller than that of the protrusion 9.
After the lower block 3A is installed on the slope 17, the upper block 2A is inserted into the hemispherical groove portion 13 of the lower block 3A.
The upper block 2A is placed by aligning the hemispherical projections 9 of. At this time, the protrusion 9 can be slid in the groove 13 to adjust the inclination of the upper block 2A, and the adjacent upper blocks 2A can be assembled without a gap between them, which is similar to the first embodiment. ， Be effective.

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, as a third embodiment shown in FIG. The groove 13 may be formed in a hemispherical surface having the same curvature. Moreover, various shapes such as a quadrangle can be used as the planar shape of the lower block.

[0013]

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, the hemispherical projections projecting from the one opposing surface, and the other surface. It is provided with a hemispherical groove portion which is formed on the opposing surfaces of the hemispherical protrusion portion and has a height dimension shorter than that of the hemispherical protrusion portion, and the hemispherical protrusion portion is slidable. It is possible to provide a divided block that can.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a first embodiment of the present invention.

FIG. 3 is a sectional view of a revetment showing a first embodiment of the present invention.

FIG. 4 is a plan view of the main part of the seawall showing the first embodiment of the present invention.

FIG. 5 is a partially cutaway side view showing a second embodiment of the present invention.

FIG. 6 is a partially cutaway side view of an essential part showing a third embodiment of the present invention.

FIG. 7 is a side view showing a conventional example.

[Explanation of symbols]

 2,2A Upper block 3,3A Lower block 8 Upper surface (opposing surface) 9 Projection 12 Lower surface (opposing surface) 13 Groove

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 provided to face each other, a hemispherical projection projecting from the one of the facing surfaces, and the other of the facing surfaces. A divided block comprising a hemispherical groove that is formed and has a height dimension shorter than that of the hemispherical protrusion and on which the hemispherical protrusion can slide.