JPS6319366Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is applicable to building a wave-dissipating structure by depositing wave-dissipating materials such as stones or concrete blocks on the bottom of the wave-dissipating structure, or The present invention relates to a lattice-shaped wave-absorbing laying body to be laid at the bottom and in the middle of the piled wave-absorbing material.

[Conventional technology and its problems]

Conventionally, wave-dissipating materials such as stones and concrete blocks constituting wave-dissipating structures for river and coastal revetments, etc.
In areas where the ground is easily scoured, such as sandy ground, to eliminate the drawback that the structure may be scoured by waves, running water, etc. and gradually sink and be buried, or be dissipated due to strong waves and eventually collapse. In the first place, each wave-dissipating block was made larger, or a connecting ring was installed in the wave-dissipating block to connect the laid wave-dissipating blocks to each other. In addition to the many obstacles encountered during construction, there is also the disadvantage that there is almost no resistance to scouring. A large crane corresponding to the total weight is required, which increases construction costs, and it is extremely difficult and practically impossible to connect the wave dissipating blocks after they are placed in the water.

In addition, vegetable fibers, asphalt pine, etc. are used as the base of wave-dissipating structures made of layered wave-dissipating blocks, but the former floats on water, while the latter is flat and easily affected by waves. Therefore, all of them have construction difficulties, and asphalt pine in particular has been found to lack durability, so it is no longer used much these days.

Further, a connecting ring is provided protruding from the end face of the concrete bar block, and connecting rings or chains are inserted and locked into the ring, and a large number of these are connected to each other to form a net-like shape. A wave-breaking material was developed, but this net-like wave-dissipating material has a structure in which rod-shaped blocks are connected at many points, and the connecting rings are often welded to form a hinge structure. Bar blocks are too heavy to handle manually, but are often too light for cranes, resulting in poor work efficiency. In addition, the net-like wave-dissipating laying material is quite heavy as a whole, and its flexibility is too good, so its shape is unstable when lifted, and it is difficult to spread it out and lay it in a predetermined position. It is difficult to Furthermore, it is even more difficult to enclose the laminated wave-dissipating materials using net-like wave-dissipating laying materials, which is a major cause of increased construction costs.

In addition, the net wave-dissipating material surrounding the wave-dissipating material is
Because each connection point is directly exposed to the outside,
Constantly being washed by waves containing sand and gravel, the abrasion was severe, and in just a few years, the connecting rings broke and the rod-shaped blocks came apart, and in the end, the effect of enclosing the wave-dissipating material, which took considerable effort, was lost. There was also a fear of being lost.

In order to eliminate all of the various drawbacks mentioned above, the applicant has proposed a wave-absorbing material by arranging a plurality of steel materials vertically and horizontally in an overlapping manner with gaps in between, and connecting the intersections by welding or the like. We have developed and proposed a wave-dissipating laying material consisting of grid-like meshes arranged in rows that are sized to engage (Japanese Patent Application Laid-open No. 19406/1983/Patent No. 1295515), and this material is laid on the underwater ground to dissipate waves. It was decided to place the material in engagement with the grid-like mesh and then deposit another wave-absorbing material on top of it.

However, even with this wave-dissipating material, if it tilts due to scouring, etc., the wave-dissipating material anchored at the edge becomes unstable, so the uplift force of waves As it easily falls off due to
The wave-dissipating material on the top also fell one after another and was washed away, and the wave-dissipating structure had the disadvantage that it began to collapse from the end.

The present invention was proposed for the purpose of eliminating such drawbacks, and corresponds to an improvement of the above-mentioned wave-dissipating laying material.

[Means for solving problems]

The bottom plate body 4 arranges a plurality of vertical rods 1 and horizontal rods 2 in a superimposed manner with spaces between them vertically and horizontally, and solidifies their respective intersections, so that wave-absorbing materials such as stones and concrete blocks are extracted. It is formed by forming a large number of lattice-like openings 3 of a size that allows them to engage with each other without twisting.

A horizontal support rod 6 is horizontally mounted on the head of the upright rods 5 which have approximately the same height as the length of one side of the lattice pattern 3 and are arranged in a row at approximately the same interval as the length of one side of the lattice pattern 3. A side wall body 7 is installed around the bottom plate body 4, and has a row of eyes 3' formed thereon, the size of which allows a wave-absorbing material such as stone or concrete block to engage without being pulled out.

[Effect]

Since the bottom plate body 4 has a side wall body 7 installed around it, even if the laid body of the present invention is inclined due to scouring or the like, the wave-dissipating material located at the edge part will not displace the side wall body 7. It engages with the body 7 and does not fall off easily.

〔Example〕

In the following, the present invention will be explained in detail with reference to the illustrated embodiments.

4 is made by placing five vertical rods 1 and horizontal rods 2 made of shaped steel at appropriate intervals vertically and horizontally, and forming grid-like meshes 3 with a square plane.
This bottom plate body is formed by overlapping the base plates so as to form the base plates, and connecting and fixing the joint portions where they intersect with each other by welding, bolting, etc.

The grid-like mesh 3 has a size such that the wave-absorbing material 9 such as stone or concrete block can be engaged without being pulled out, and the length of each side is usually 0.5 to 2.
It is designed to be about m.

Reference numeral 5 denotes upright rods made of shaped steel having a height that is approximately the same as the length of one side of the lattice openings 3, and are arranged in an upright row around the bottom plate body 4 at intervals that are approximately the same as the length of one side of the lattice openings 3. ing. In other words, the lower end of the upright rod 5 is welded or bolted to the inner corner of each joint portion located on the outer periphery of the bottom plate body 4 among the joint portions where the vertical rod 1 and the horizontal rod 2 intersect. The connection is fixed.

Reference numeral 6 denotes a horizontal frame rod made of shaped steel, which is hung horizontally on the heads of the vertical rods 5 which are arranged in an upright manner as described above, and is connected and fixed by welding or bolting. A side wall body 7 is formed around the four peripheries of the wave absorbing material 4 with a row of holes 3' having a size that allows the wave-absorbing material to engage without being pulled out, similar to the grid-like holes 3 described above.

Reference numeral 8 denotes a reinforcing member made of shaped steel that diagonally spans the corner formed by the adjacent horizontal frame rods 6, 6 of the side wall body 7.

Note that the side walls 7 may be provided not on all four peripheries of the bottom plate 4 but only on two or three required peripheries. Further, the vertical rod 1, the horizontal rod 2, the upright rod 5, the horizontal rod 6, and the reinforcing material 8 may be made of shaped steel or reinforced concrete.

Next, construction of a wave-dissipating structure using the lattice-shaped wave-dissipating laying body a having the above configuration will be described with reference to FIG. 3.

First, a plurality of laying bodies a are laid in a row on the underwater ground, and wave-absorbing materials 9 such as stones or concrete blocks of a size that cannot be pulled out from the above-mentioned openings 3 and 3' are charged and filled therein. The above-mentioned laying bodies a are laid in two rows with the required spacing on the offshore side and on the land side as shown in Figure 3, and the second stage of laying bodies a is laid on top of the first stage of laying bodies a. This is done with the laying body a slightly retreated, and the wave-dissipating material 10 smaller than the wave-dissipating material 9 is charged and filled into the two rows of laid bodies a and a rod, and the same wave-dissipating material as the wave-dissipating material 9 is placed on top of it. Wave-dissipating material 11 of a certain size
Deposit.

As a result, a strong wave-dissipating structure c is constructed in which the hem base b is stabilized by the laying body a and the wave-dissipating material 9 filled therein. Even if the portion is inclined, the wave-absorbing material 9 is retained by the side wall body 7 and will not easily fall off.

[Effect of idea]

As is clear from the above, the laying body of the present invention has a simple structure in which a side wall body with similar grid-like grids is installed around the bottom plate in which a large number of grid-shaped grids are formed. It is lightweight, easy to transport, install, etc., and requires less material compared to the installation area. In addition, this laying body locks the filled wave-dissipating material not only on the bottom plate but also on the side walls, so it contributes to building the base of the wave-dissipating structure firmly. To stabilize the base without easily dropping the wave-dissipating material even if the laying body is inclined due to such reasons.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view, the left half A side is shown with the top surface removed, the right half B side is shown with the top surface left, and FIG. 2 is a side view. , FIG. 3 is a side view of the device in use. 4...Bottom plate, 1...Vertical rod, 2...Horizontal rod, 3...
...grid, 5...standing rod, 6...horizontal rod, 3'
...Eye, 7...Side wall body.

Claims (1)

[Scope of utility model registration request] A plurality of vertical rods and horizontal rods are stacked vertically and horizontally with spaces between them, and each intersection point is consolidated,
Around the bottom plate body, which has a large number of lattice-shaped openings that are large enough to engage wave-dissipating materials such as stones or concrete blocks without being pulled out, the base plate has a height that is approximately the same as the length of one side of the lattice-shaped openings. In addition, horizontal rods are installed horizontally on the heads of the upright rods arranged at intervals approximately equal to the length of one side of the lattice pattern, so that wave-absorbing materials such as stones and concrete blocks can be engaged without being pulled out. 1. A lattice-shaped wave-dissipating laying structure, characterized in that it is formed by installing a side wall body having rows of holes of a size of