JPH07268838A - Foot protection block for wave absorption by use of existing block and production thereof - Google Patents

Abstract

PURPOSE:To reuse blocks, by fixing a concrete pedestal as a unit at the lower part of an existing block having wave-absorbing cylindrical protrusions projected upward at the upper part thereof. CONSTITUTION:An-existing block body 1 of a wave-absorbing foot protection block is installed at a specified position in the form of a pedestal 2. And concrete is placed in the form and cured. After that, a nearly circular pedestal 2 in plane view, having a specified thickness and diameter, is formed at the position where three legs 1d, 1e, 1f at the lower part of the block bob 1 are almost embedded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wave breaking rooting block which is manufactured by reusing an existing wave breaking block which has become unnecessary, and a manufacturing method thereof.

[0002]

2. Description of the Related Art In recent years, in consideration of the landscape and utilization, the existing wave-dissipating block, mainly the wave-dissipating root block, has become unnecessary in many cases when the improved structure is completed. Such an unnecessary wave-dissipating block has been conventionally reused as follows. Directly used for other construction sites. When manufacturing a block with a large standard, an unnecessary wave-dissipating block is placed inside the form, and concrete is poured into the gap between this block and the form to form a large block. Unnecessary wave breaking block is crushed and embedded in a new block. Discard unnecessary wave-dissipating blocks in the rubble foundation of the structure. Cut off a part of the unnecessary wave-eliminating block and reuse it as a root block.

[0003]

However, in the case of the above diversion, the block to be removed is often a block having a relatively small weight used near the shoreline or in a river. In some cases, the necessary block weight may not be satisfied, and inevitably the places that can be diverted will be limited. In the case of the above technology,
It is more economical than producing a new block by the usual method, but it is difficult to install an unnecessary existing block at the proper position in the formwork of a large block, and it is also suitable for concrete injection and compaction. It takes time and effort. In addition, in the above case of the conventional technique, it takes time to crush the existing block. Moreover, depending on the pouring method, concrete may not be sufficiently solidified in the mold and may remain as voids, resulting in insufficient strength and weight. Further, in the case of the above technique, a large void is likely to remain between the block and the rubble, and the foundation may sink in the future.
Also, with this technology, the cost of removing, transporting, and putting in existing blocks is higher than the cost of rubble that can be saved, so there is little effect of reducing construction costs. Furthermore, in the above technique, it takes a lot of time to cut the existing block, and the cut part becomes a waste.

In view of various problems of the above-mentioned conventional techniques, an object of the present invention is to use an existing wave-dissipating block that can be effectively and economically used and can be easily manufactured. Another object of the present invention is to provide a root block for wave breaking and a manufacturing method thereof.

[0005]

In order to achieve the above-mentioned object, the present invention integrally fixes a pedestal made of concrete to the lower part of an existing block having a columnar projection for wave-dissipation protruding upward. The point is that it was done.

The existing block may have a leg protruding from the lower portion as long as it has a columnar protrusion for wave-dissipating in the upper portion, and the leg may be embedded in the pedestal. Also, the plane shape of the pedestal is not particularly limited, as long as it stabilizes the center of gravity of the existing block, a circular shape,
It does not matter that the shape is polygonal. In the case of an existing block having legs, the pedestal may be fixed to a position where the legs protrude downward from the bottom face of the pedestal, or the pedestal itself may have a shape such as a leg provided on the bottom face.

Further, in the method of the present invention, the existing block is installed substantially in the center of the pedestal formwork having an open upper surface, concrete is put into the pedestal formwork, and the concrete is hardened to make the existing structure. The feature is that the pedestal is integrated under the block.

[0008]

This block is simply manufactured by inserting an existing block of a predetermined shape into the pedestal formwork, and then pouring concrete into the pedestal formwork from the top. Since the manufactured block has a pedestal in the lower part, not only the weight increases, but the position of the center of gravity becomes low and the block becomes stable.
For this reason, it can be used as a flat type root block. In addition, since the columnar projections of the existing block project to the upper part, not only the wave-dissipating effect is maintained as it is, but also its complicated upper shape and the above-mentioned stability make it possible to use it as a fish reef.

[0009]

The present invention will be described below in detail with reference to the illustrated embodiments. FIG. 1 is a perspective view of a wave breaking root block according to an embodiment of the present invention. In the figure, reference numeral 1 is a block body, and this block body 1 is composed of an existing wave-eliminating block that is no longer needed. In this embodiment, in the block owned by the applicant, as shown in FIGS. 2 to 4, six pillar-shaped projections 1a, each of which has a columnar shape and protrudes upward and downward in three directions, respectively.
A so-called hexapod block with 1f is used.

Reference numeral 2 denotes a pedestal integrated with the block main body 1, and the pedestal 2 has a substantially circular plane shape as seen in the plan view of FIG. The pedestal 2 is formed with a required thickness and diameter at the lower part of the block body 1, that is, at a position that almost completely fills the lower three legs 1d to 1f. The lower ends of the legs 1d to 1f of the block body 1 slightly project from the bottom of the pedestal 2. In this block, the block main body 1 is installed at a predetermined position in a mold (not shown) of the pedestal 2, and concrete is put into the mold to be hardened so that the legs 1d of the block main body 1 can be hardened.
A thick disk-shaped pedestal 2 is integrated around 1f.

In the block thus manufactured, the weight of the pedestal increases, and the three protrusions 1a to 1c of the existing block 1 which are no longer needed in the upper part are projected in three directions as they are, and the lower pedestal is also formed. By 2, the center of gravity is lowered and the block becomes stable. Therefore, this block, which was a comparatively small wave-dissipating block, is used as a substitute for the flat-shaped block. Further, as shown by a symbol K in FIG. 5, it is also used as a covering material for an artificial leaf by utilizing the complicated protrusions 1a to 1c on the upper side. Block K
It is advisable to use the protrusions of the existing block 1 when moving or installing. Depending on the case, a metal fitting for lifting may be attached to an appropriate position of the base 2.

The existing block used in the present invention may have any specific shape as long as it has a single or a plurality of protrusions protruding vertically or obliquely upward from the various wave-dissipating blocks. It is applicable regardless of. Further, the planar shape of the pedestal integrally added to the existing block is not limited to the circular shape, and a polygonal shape such as a quadrangle or a hexagon can be adopted according to the shape of the existing block, the purpose of use, the construction site, etc. The pedestal itself may have a structure in which a small leg is projected on the bottom thereof. Of course, the bottom surface of the base may be flat. As for the position of the existing block to which the pedestal is integrally fixed, any position can be selected as long as it is a lower part of the existing block, that is, a position where the center of gravity of the existing block is lowered.
Various sizes of the pedestal are designed and manufactured according to the purpose of use. The formwork for the pedestal is the shape of the pedestal described above,
Depending on the size etc., the one corresponding to it is manufactured and used, but in order to improve workability such as installation of existing block, concrete injection, demolding, it is desirable that the shape of the upper part is opened widely.

[0013]

As described above, the present invention has the following effects. Since the concrete pedestal is integrally fixed to the lower part of the existing block, the weight of the existing block can be increased and the center of gravity can be lowered. As a result, the existing block having a comparatively small weight can be diverted as it is to a construction site requiring a block having a large weight. Since the pedestal secures stability and flatness of the bottom, the existing block that was mainly used for wave-dissipating work can be used as a substitute for the flat-type root block. Since this block has a structure in which the protrusions of the existing block project in a complicated manner above the block, a wave-dissipating effect can also be expected. Therefore, it can be used as a covering material for artificial leaves. In this case, even if the cross section of the artificial leaf itself is made small, the same effect can be obtained, so that the construction cost can be reduced. Compared to general flat type root blocks, the upper shape is more complicated, so it has a great effect as a fish reef. Therefore, it is possible to easily construct a rooting / covering work that also has a fish reef effect. In addition to the above, it can also be used as a mound covering material and caisson root-blocking mass, and it becomes possible to divert unnecessary existing blocks to many other purposes and in large quantities. Since it can be manufactured simply by integrally fixing the pedestal to the lower part of the existing block using a frame, it is possible to easily and economically provide the block having a wide diversion area as described above. Moreover,
Operations such as movement and installation can be easily performed by using the upper protruding portion, and the waste generated by cutting off the existing block unlike the prior art does not occur.

[Brief description of drawings]

FIG. 1 is an external perspective view of a block according to an embodiment of the present invention.

FIG. 2 is a plan view of the block shown in FIG.

FIG. 3 is a side view of the block of FIG.

FIG. 4 is a front view of the block shown in FIG.

5 is an explanatory view showing a usage state of the block of FIG. 1, in which the projecting portions 1a to 1f of the block body 1 are abbreviated by lines.

[Explanation of symbols in the figure]

 1 ... Block body (existing block) 2 ... Pedestal K ... Block according to the present invention

Claims (6)

[Claims] 1. A wave-breaking root using an existing block, characterized in that a concrete pedestal is integrally fixed to the lower part of an existing block having a column-shaped projection for wave-cutting protruding upward. Hardening block. 2. A wave breaking root block using an existing block according to claim 1, wherein the existing block has columnar legs. 3. The existing block according to claim 1 or 2, wherein the pedestal and the existing block are integrated so that a bottom portion of the existing block is embedded in the pedestal. Rooting block for wave breaking. 4. A wave breaking root block using an existing block according to claim 1, wherein the pedestal has a plurality of columnar protrusions on the bottom surface. 5. A rooting block for wave-dissipating using an existing block according to claim 1, wherein the pedestal has a planar circular shape or a polygonal shape. 6. An existing block having a columnar protrusion for wave-dissipation projecting upward is arranged in the upper part of the pedestal formwork having a large open upper surface, and concrete is poured into the pedestal formwork. Then, the pedestal is integrated with the lower part of the existing block by curing, and the method for manufacturing a wave-damping rooting block using the existing block.