JPH0557017U - Split block - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a division block that has an excellent external appearance design as a seawall and can be improved in workability. [Structure] A cylindrical protrusion 9 is provided on the upper surface 8 of the lower block 3 in a protruding manner. Further, a concave groove portion 13 having a diameter larger than that of the projection portion 9 is formed on the lower surface 12 of the upper block 2, and a space portion 13A between the projection portion 9 and the concave groove portion 13 in which the projection portion 9 can move laterally.
To form. Further, the head 11 of the upper block 2 is molded by imitating natural stone. [Effect] After laying the lower block 3 on the slope 17, the upper block 2 is placed on the lower block 3, and the position of the upper block 2 is adjusted to adjust the upper block 2
It can be laid without gaps. Further, after laying, the head 11 appears on the surface, and a natural appearance similar to natural stone is obtained.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a divided block including an upper block and a lower block.

[0002]

[Prior Art]

 Various types of concrete blocks are used for revetments to prevent erosion of rivers and coasts, and fixed-wall concrete blocks are laid on the slopes of rivers and the like 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 megalithic bank constructed of stone is known. However, since large amounts of natural stones are required for this type of megalith revetment, its collection has become increasingly difficult in recent years, and at the same time, the collection site is often far away from the revetment construction site, and transport vehicles cannot enter. There are many places like this. 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 collected is limited to the revetment. Have become very difficult to collect. In actual construction, when a huge stone is piled up on the slope of a river or the like, a wire rope is usually hung on the cross for installation, but subtle angle adjustments during installation and wire installation after installation are necessary. Since it is difficult to remove the rope with the cross, it is often the case that one wire rope is hung. In addition, there was a problem in the safety of hoisting with the method of hoisting with one wire rope. Furthermore, in megalith 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 the appearance must be taken into consideration when stacking, the skill of the worker is required, and even after the stacking is completed, if the lower stage bites and the balance with the surroundings is bad, the size of the huge stone to be used again However, since it is a laborious work of examining the shape and the like and reloading, there is a problem that the workability is poor. 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 formed by a concrete block C. It is possible to construct a seawall.

[0003]

[Problems to be solved by the device]

 By laying the above-mentioned conventional concrete block C on the slope, the 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 indeterminate shape, and it is difficult to install the upper parts A and A of adjacent concrete blocks C and C in close contact with each other. There is a problem that the entire structure of the revetment tends to become unstable because D occurs and local load tends to concentrate on a part of the revetment. 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 is increased and the hanging and installation work becomes complicated.

Therefore, an object of the present invention is to provide a division block which has an excellent appearance design and can improve workability.

[0005]

[Means for Solving the Problems]

 The present invention comprises a sliding surface provided on each of the lower portion of the upper block and an upper portion of the lower block, a protrusion protruding from the one sliding surface, and the other sliding surface. And a space provided between the protrusion and the groove so that the protrusion can move laterally.

[0006]

[Action]

 With the above configuration, the upper block is placed on the lower block, the sliding surfaces are slid to adjust the position of the upper block, and the adjacent upper blocks are assembled with no space between them. ..

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described 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 is composed of an upper block 2 and a lower block 3, and the lower block 3 has a planar hexagonal shape. A pedestal portion 5 is integrally provided on the base 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 of the lower block 3 is also provided. On the upper surface 8 which is the sliding surface of 5, a substantially cylindrical projection 9 is provided 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. Are provided. On the lower surface 12 of the upper block 2, there is formed a concave groove portion 13 into which the protruding portion 9 is inserted and arranged. 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 amorphous natural stone, and is formed in an appropriate shape such as cobblestone or rubble stone. Further, the blocks 2 and 3 are provided with hooks 14 and 14 made of metal or the like, and the blocks 2 and 3 are connected to each other by a connecting member 15 such as a shackle via the hooks 14 and 14. Fixed.

Next, construction of a seawall using the divided blocks 1 will be described. First, a foundation block 16 is constructed along a river to form a slope 17, a flat hexagonal lower block 3 is laid on the slope 17 without gaps, and a connecting reinforcing bar 6 is provided in each insertion hole 7. To connect the lower blocks 3 and 3 to each other. After 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 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. 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 that are the sliding surfaces and the upper surface 8 that 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. Is provided between the projection 9 and the recessed groove 13, and the projection 9 is provided laterally movable. Since the lower block 3 is laid on the slope 17, the upper block 2 is placed on the lower block 3 and the position of the upper block 2 is adjusted. In addition, the upper block 2 can be rotated around the protrusion 9 so that the upper blocks 2 can be laid without a gap, and a stable revetment 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. The upper block 2 on the lower block 3 is 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. Moreover, since the movement of the upper block 2 is limited to the range in which the protrusion 9 can move in the groove 13, the upper block 2 does not come off from the lower block 3 and both blocks 2 A stable mounting state can be obtained even before connection by the connecting members 15 of 3 and 3.

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 revetment constructed by the divided blocks 1 may show megalithic disorder. The result is an exterior design that matches the surrounding natural landscape. In addition, by laying the hexagonal lower block 3 without any gap, the lower block 3 alone can provide the function of a seawall to protect the slope 17, and the upper block 2 can be 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.

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 concave groove portion 13 is formed on an upper surface 8 which is a sliding surface of the pedestal 5, and a projection portion 9 on which the concave groove portion 13 is slidable is protrudingly provided on a lower surface 12 which is an opposing surface of the upper block 2A. .. Then, after laying the lower block 3A on the slope 17, the upper block 2A is placed by aligning the projection 9 of the upper block 2A with the concave groove portion 13 of the lower block 3A. 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 a gap. The same operation and effect as those of the first embodiment are achieved.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. For example, the plane shape of the lower block is a square shape or other various shapes. Can be used. Further, in the embodiment, the height dimension of the protrusion 9 is formed slightly shorter than the height dimension of the concave groove portion 13. However, the height dimension of the protrusion portion 9 and the inner end surface of the concave groove portion 13 are the same. May slide.

[0013]

[Effect of the device]

 The present invention comprises a sliding surface provided on each of the lower portion of the upper block and an upper portion of the lower block, a protrusion protruding from the one sliding surface, and the other sliding surface. Since it has a concave groove portion and a space portion provided between the protrusion portion and the concave groove portion and capable of laterally moving the protrusion portion, the external appearance is excellent and the workability is improved. It is possible to provide a divided block capable of

[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 the lower portion of the upper block and the upper portion of the lower block, a protrusion protruding from the one sliding surface, and the other sliding surface. A divided block, comprising: a concave groove portion; and a space portion provided between the projection portion and the concave groove portion, the projection portion being capable of moving laterally.