JPS63277309A - Wave-spending block and wall - Google Patents

Abstract

PURPOSE:To prevent the occurrence of waves splash by providing concrete blocks for both ends of a wave-spending tube having variable flow path cross sections while surrounding the outer faces of the ends. CONSTITUTION:A wave-spending wall 1 is constructed by stacking a number of wave-spending blocks vertically and bilaterally. Concrete blocks 4a and 4b having a rectangular cross section are formed on both ends of the wave- spending tube 3 with the blocks 2. Contracted paths 6a and 6b having a cross section smaller than the openings 5a and 5b of both ends and a retarding section 7 having a cross section larger than the paths 6a and 6b are also provided to the tube 3. The wave-spending wall can thus be constructed simply by only stacking up the blocks 2.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wave-dissipating wall for absorbing waves in a bay or the like.

2. Description of the Related Art Conventionally, it has been common to construct a wave-absorbing wall by stacking a plurality of wave-dissipating blocks known as Tetrabod (registered trademark).

Problems to be Solved by the Invention However, in conventional wave-dissipating walls constructed from blocks, when waves collide with the blocks, energy is absorbed and dissipated. There was a problem in that droplets were generated and these droplets reached the land. In addition, there was a problem in that it took time to assemble the tetrabods, and it took time to build the structure horizontally as a wave-dissipating wall.

The present invention solves the above-mentioned problems, and aims to provide a wave-dissipating block and a wave-dissipating wall that can prevent the generation of wave splash and facilitate the @sei work.

Means for Solving the Problems In order to solve the above problems, the wave-dissipating block of the present invention has the following features:
It has a configuration in which concrete blocks are provided surrounding the outer surface at both ends of the wave dissipating tube, where the cross-sectional area of the flow path changes. Furthermore, the wave-dissipating wall of the present invention includes a plurality of Urahami blocks, each of which is formed by stacking concrete blocks that can form a wall surface with their end faces, surrounding the outer surface of the Urahami tube at both ends of the Urahami tube, and forming an opening at one end of the wave-dissipating tube. In addition to facing the direction in which the waves are propagating, stack the concrete blocks on top of each other to align them vertically and horizontally.
The configuration is such that they are stacked to the right.

Function In the above configuration, the wave-dissipating blocks are simply stacked by stacking concrete blocks vertically and horizontally, and the end faces of the concrete blocks form the wall surface of the wave-dissipating wall, and the concrete blocks also form a wave-dissipating pipe and a wave-dissipating block. A wave-dissipating wall can be formed by maintaining the openings of the wave-dissipating tube at regular intervals. The wave-dissipating block attenuates and dissipates the waves within the Urahami tube by changing the cross-sectional area of the flow path. Moreover, since the wave-dissipating block is simply provided with concrete blocks at both ends of the wave-dissipating pipe, it is easy to manufacture and easy to handle in terms of weight.

Further, since the wave-dissipating wall is constructed by stacking Uranami blocks as described above, the construction work becomes easy.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. In FIGS. 1 and 2, the wave-dissipating block v1 is constructed by stacking a plurality of wave-dissipating blocks 2 vertically and horizontally. The wave-dissipating block 2 includes concrete blocks 4a and 4b having a rectangular cross section formed on the outer periphery of both ends of the wave-dissipating pipe 3, and the wave-dissipating pipe 3 is made of a cast iron pipe, with openings 5 at both ends.
'a.

Narrow passage portions 6a, 6 formed with a smaller cross-sectional area than 5b.
b, and a water retarding portion 7 formed with a passage cross-sectional area larger than that of the narrow passage portions 6a and 6b, and is formed in a shape in which the passage cross-sectional area changes as a whole. The Uranami block 2 is stacked with concrete blocks 4a and 4b stacked one on top of the other in the vertical and horizontal directions.
Between the wave breakers 3 of the stacked wave break blocks 2,
It is filled with fixing concrete 8. and,
A plurality of wave-dissipating blocks 2 integrated with fixing concrete 8 are arranged with openings 4a on one end facing the direction in which waves 9 propagate.

Further, the fixing concrete 8 may be poured by forming a temporary frame 10 and stacking the wave-dissipating blocks 2 within this temporary frame 10, as shown in FIG.
As shown in FIG. 4, the Uranami block 2 may be arranged within a caisson frame 11 having a U-shaped cross section, and the caisson frame 11 and the Uranami block 2 may be embedded together with fixing concrete 8.

At this time, sand or crushed stone may be used instead of the fixing concrete 8. In addition, the wave dissipating block 2 is not only provided at both ends of the Urahami pipe 3, but also contains concrete blocks 4a in the middle.
, 4b may be formed.

Hereinafter, the effects of the above configuration will be explained.

First, in constructing the wave-dissipating wall 1, the wave-dissipating blocks 2 are simply stacked so that the concrete blocks 4a and 4b at both ends are overlapped in the vertical and horizontal directions, and the end surface of the concrete blocks 4a and 4b on the opening side The wall surface of the wave-dissipating wall 1 is formed by the concrete blocks 4a and 4b, and the wave-dissipating pipe 3 and the wave-dissipating pipe 3 are formed by the concrete blocks 4a and 4b.
The openings 5a and 5b are arranged at regular intervals. In addition, since fixing concrete 8 is poured between the wave-dissipating pipes 3 and a plurality of wave-dissipating blocks 2 are integrated at once, the wave-dissipating blocks 2
is fixed in the cylinder. Therefore, the horizontal erection work of the wave-dissipating wall 1 becomes easy. As the waves 9 propagating to the wave-dissipating wall 1 pass through the Urahami tubes 3 of each Urahami block 2, the cross-sectional area of the wave-dissipating tubes 3 changes, causing wave force to be reduced to pressure loss. and is absorbed as a decrease in flow pressure, attenuated and dissipated. Therefore, generation of wave splash is prevented.

In addition, the fixing concrete 8 filled between the wave-dissipating tubes acts as a weight against the wave force of waves 9 that try to lift the wave-dissipating block 2, and the stability of the wave-dissipating wall 1 is reduced. It will be planned.

Effects of the Invention As described above, according to the wave-dissipating block of the present invention, the wave-dissipating pipes can be held at regular intervals by the concrete blocks, and the wall surface of the wave-dissipating wall can be formed by the end faces of the concrete blocks, so that the wave-dissipating blocks can be stacked together easily. WRip
A wave-dissipating wall can be constructed by doing some work. Also,
According to the wave-dissipating wall of the present invention, since it is constructed by stacking the Uranami blocks ta as described above, the construction work becomes easy, and the flow path breaks while the waves pass through each wave-dissipating pipe. Since the waves are attenuated and dissipated by the change in area, the generation of wave splash can be prevented.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram showing one embodiment of the present invention, Fig. 2 is an overall perspective view of the Uranami block, Fig. 3 is a diagram showing JI4 construction of a wave-dissipating wall with a temporary frame, and Fig. 4 is a caisson It is a figure showing construction of a wave-dissipating wall by a frame. 1... Wave-dissipating wall, 2... Wave-dissipating block, 3... Wave-dissipating pipe, 4a, 4b... Concrete block, 5a, 5
b...Opening, 6a, 6b...Narrow path section, 7...Water retarding section, 8...Fixing concrete, 9...Waves, 10
... Temporary frame, 11... Caisson frame, 12... Support part. Figure 1

Claims (1)

[Scope of Claims] 1. A wave-dissipating block characterized in that concrete blocks are provided surrounding the outer surface at both ends of a wave-dissipating tube whose flow path cross-sectional area changes. 2. Concrete blocks that can be stacked to form a wall surface with their end faces are provided at both ends of the wave-dissipating pipe, surrounding the outer surface.A plurality of wave-dissipating blocks are installed with one end opening of the wave-dissipating pipe facing the direction in which waves propagate. A wave-dissipating wall characterized by stacking concrete blocks vertically and horizontally. 3. Claim 2, characterized in that the spaces between the wave-dissipating pipes of the stacked wave-dissipating blocks are filled with concrete.
Wave-dissipating wall as described in section.