JPH0724414Y2 - 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. 6, 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 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]

According to the present invention, there are provided sliding surfaces provided on the lower portion of an upper block and an upper portion of the lower block, and a protrusion protruding from the one sliding surface.
It is provided with a concave groove portion formed on the other sliding surface and a space portion provided between the protrusion portion and the concave groove portion and capable of laterally moving the protrusion portion.

[0006]

With the above structure, the upper block is placed on the lower block, the sliding surfaces of the upper block are slid to adjust the position of the upper block, and the space between the adjacent upper blocks is adjusted. Assemble without gaps.

[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 formed on the left and right sides of the base portion 4, respectively, and the pedestal portion 5 of the lower block 3 is slidable. A substantially cylindrical projection 9 is provided at the center of the upper surface 8, which is the moving surface, at the center thereof. In the upper block 2, a head 11 is integrally formed on a hexagonal body 10, and a lower surface 12 which is a sliding surface of the body 10 faces an upper surface 8 of the lower block 3. It is provided. A concave groove portion 13 into which the protruding portion 9 is inserted and arranged is formed on the lower surface 12 of the upper block 2, and the concave groove portion 13 has a substantially cylindrical shape and is formed to have a diameter larger than that of the protruding portion 9. A space 13 </ b> A in which the protrusion 9 can move is formed between the protrusion 9 and the groove 13. 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. Further, the both blocks 2 and 3 are provided with hook portions 14, 14 made of metal or the like, respectively.
Both blocks 2 and 3 are connected and fixed by a connecting member 15 such as a shackle via 4 and 14.

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 lower reinforcing blocks 3 are connected to each other by inserting the connecting reinforcing bar 6 into the. When the laying of the lower block 3 is completed, the concave groove portion 13 is aligned with the protruding portion 9, and the upper block 2 is placed on the lower block 3. At this time, the lower block 3
The lower surface 12 of the upper block 2 is slid on the upper surface 8 of the above to adjust the position of the upper block 2 and
Assemble without gap between the sides. When the position 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 sliding surfaces and the upper surface 8 which is one of the sliding surfaces are provided on the lower portion of the upper block 2 and the upper portion of the lower block 3, respectively. Projecting portion 9 protruding, concave groove portion 13 formed on the lower surface 12 which is the other sliding surface, protruding portion 9 and concave groove portion
Since the projecting portion 9 provided between the lower block 3 and the projecting portion 9 has a space 13A capable of moving in the lateral direction, the lower block 3 is laid on the slope 17 and then the upper block is placed on the lower block 3. 2 can be placed, the position of the upper block 2 can be adjusted, and the upper block 2 can be rotated around the protrusion 9 to lay the space between the upper blocks 2 without a gap, thus providing a stable revetment structure. can get. 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, the upper block 2 on the lower block 3 can be stably placed on the lower block 3 by contacting the relatively wide upper surface 8 of the lower block 3 with the lower surface 12 of the upper block 2. In addition, since the upper block 2 can be moved only within the range in which the protrusion 9 can move in the concave groove 13, the upper block 2 does not come off from the lower block 3 and both blocks 2, 3 A stable mounting state can be obtained even before connection by the connection member 15 of FIG.

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.

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.
Is formed on the upper surface 8 which is the sliding surface of the pedestal 5, and the concave groove 13 is formed on the lower surface 12 which is the facing surface of the upper block 2A.
A projecting portion 9 that can slide is projected. After laying the lower block 3A on the slope 17, the lower block 3A
The protrusion 9 of the upper block 2A is aligned with the groove 13 of A, and the upper block 2A is placed. At this time, the lower surface 12 of the upper block 2 is slid on the upper surface 8 of the lower block 3 to adjust the position of the upper block 2, and the side portions of the adjacent upper blocks 2 are assembled without any gap. The same action and effect as in the first embodiment are obtained.

The present invention is not limited to the above-mentioned embodiment, and various modifications can be made within the scope of the present invention. For example, the plane shape of the lower block uses various shapes such as a quadrangle. be able to. In the embodiment, the height of the projection 9 is slightly shorter than the height of the groove 13, but the projection 9 has the same height.
The leading end surface of the and the inner end surface of the recessed groove portion 13 may slide.

[0013]

According to the present invention, the sliding surface provided on each of the lower part of the upper block and the upper part of the lower block, the protrusion protruding from the one sliding surface, and the sliding part of the other Since it is provided with a recessed groove portion formed on the surface and a space portion provided between the protruding portion and the recessed groove portion and in which the protruding portion can move laterally, the appearance is excellent and the workability is improved. It is possible to provide a divided block capable of achieving the above.

[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 side view showing a conventional example.

[Explanation of symbols]

 2,2A Upper block 3,3A Lower block 8 Upper surface (sliding surface) 9 Projection 12 Lower surface (sliding surface) 13 Recessed groove 13A Space

Claims (1)

[Scope of utility model registration request] 1. A sliding surface provided on each of a lower portion of the upper block and an upper portion of the lower block, a protrusion protruding from the one sliding surface, and a sliding surface formed on the other sliding surface. A divided block comprising: a concave groove portion; and a space portion provided between the protrusion portion and the concave groove portion, the protrusion being capable of moving laterally.