JP2696072B2 - Seawall protection block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a revetment protection block for protecting a riverbank or a riverbed as a part of natural environment protection.

[0002]

2. Description of the Related Art In recent years, as a part of the protection of the natural environment, there has been a demand for new seawall protection measures for rivers in order to create abundant nature on the waterside and a friendly habitat for living things. Conventional revetment measures include covering the slopes of the shore with crushed stones without covering them entirely with concrete, etc. As a protection method for slackening, cedar, pine log, or cross-section steel is combined in any number of layers in a cross-girder manner on the foundation concrete block for foundation with embedded metal fittings or bolts and nuts. In addition, there is provided a submerged block in which a filling material such as stone is charged into the girder.

[0003]

However, a basket is made by inserting pebbles or the like into a bag made of a wire mesh and closing the opening, which requires manual labor and increases costs. In addition, since the wire mesh is easily corroded, the wire mesh is brittle in durability, and there is a demand for a net material to replace the wire mesh. However, a hard netron (trade name) to meet this demand is expensive.

[0004] In addition, even if the sediment block is inexpensive because cedar and pine logs are made of thinned wood, transportation costs are required, and those that are naturally reproductive are cut down, which is environmentally destructive and is preferable. However, since it is preservative treatment using a special chemical or the like in order to prevent its corrosion, the chemical or the like permeates into the water and is not suitable as a habitat for aquatic plants and animals.

In view of the above circumstances, the present invention
To provide a new revetment block that does not hinder the aquatic flora and fauna.

[0006]

According to a first aspect of the present invention, there is provided a seawall protection block according to the present invention, which is a concrete block which is laid on a river shore or a floor to provide a seawall and a seabed. A plurality of polygonal pyramidal or hemispherical wave-dissipating projections for disturbing and easing the water flow of a river are integrally formed on the upper surface of a foundation block for roots.

According to a second aspect, in the first aspect, a space surrounded by the wave breaking projection is formed on an upper surface of the basic block.

[0008] Then, according to claim 3, in claim 1 or 2, surrounded by the inter-wave dissipating projection or the wave dissipating projections
Characterized in that the filling material in the pebbles in space which is turned.

[0009]

[Function] If a seawall block is laid on the shore or riverbed of a river, the wave-breaking protrusions disturb the water flow and make it gentle, accumulating sediment between the wave-breaking protrusions or between the filling material or in the space. Water algae will proliferate, and aquatic animals will be able to inhabit the water algae.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a revetment protection block 3 is laid on a river bank 1 and a riverbed 2 as appropriate. The revetment protection block 3 comprises a plurality of substantially triangular pyramidal wave-breaking projections 5 formed on a foundation block 4 made of concrete for anchoring. And, on the riverbed 2, the seawall protection blocks 3 are stacked in layers. If necessary, as shown in FIG. 2, a filling material 6 such as pebbles is put between the wave breaking projections 5.

As shown in FIG. 3, the block 3 for seawall protection is a base plate 4 having a rectangular plate-like body having a predetermined area.
Suspension rings 7 are buried in opposing sides, grooves 8 are formed in the bottom surface, and a plurality of wave-breaking projections 5 are aligned and integrally formed on the periphery of the upper surface. The wave-absorbing projections 5 have a substantially triangular pyramid shape, but may have a hemispherical shape or a polygonal pyramid shape in some cases. A space 9 for mounting is formed.

The wave-absorbing projection 5 employs an alignment method of a geometric arrangement in which one of the bases is along a straight line and the vertices face each other. This is due to the convenience of molding. The method of arranging the wave breaking projections 5 is arbitrary. Further, as shown in FIG.
Without intentionally providing, a plurality of rows of the wave-breaking projections 5 are formed to be aligned in parallel with the sides, and a slightly wide space is provided between the two rows at the center, so that the space 9a may be a space. .

The space 9 is not limited to one. As shown in FIG. 5, the wave-absorbing projections 5 are formed on the upper surface of the basic block 4a larger than the basic block 4 in a substantially cross shape at the peripheral portion and inside. The four corner spaces 9b and the center space 9c may be formed to form four to five spaces. A plurality of grooves 8a are formed on the bottom surface of the basic block 4a. Needless to say, the suspension rings 7 are appropriately embedded in opposing sides of the basic block 4a.

Therefore, by laying a plurality of seawall protection blocks 3 on the riverbank 1 or the riverbed 2, or by laying the blocks 3 on top of each other, the wavebreaking projections 5 disturb the water flow and lower the waterflow. Space 9
By guiding the inside, the accumulation of sediment in the space 9 is promoted, water algae and the like propagate on the soil and the like, and aquatic animals such as fish breed for the water algae.

Also, the seawall protection block 3 is fixed to the riverbank 1 and the riverbed 2 and the filling material 6 such as pebbles is put in the space 9, so that the filling material 6 becomes a wave breaking protrusion. 5 and is held without flowing down, and the wave breaking projections 5 and the filling material 6 disturb and lower the water flow, and guide the water flow into the space 9 by a gentle flow.
Aquatic animals will breed using the inner filling material 6 as a base for inhabitation.

The work for laying the revetment protection blocks 3 on the riverbank 1 and the riverbed 2 can be performed by lifting them one by one through a suspension ring 7 with an appropriate crane or the like, and then fixing them. Achieved.

Thus, the new seawall protection block 3 can provide a new seawall which does not hinder the inhabitation of aquatic animals and plants.

[0018]

According to the present invention described above, the polygonal pyramid
A plurality of wave-breaking protrusions of
It is a concrete block formed on the upper surface of the building, so that it does not have to be expensive like a basketball, and it is resistant to corrosion because it does not use a wire mesh, and has excellent durability. It is not necessary to form cedars and pine logs that are naturally reproductive as in the shape of a girder, and there is no need to perform preservative treatment using special chemicals or the like to prevent corrosion. It is appropriate as a place. In addition, surrounded by or surrounded by wave breaking protrusions
Filling material such as pebbles into the space
Can the material be held by the wave-breaking projection so that the material is not washed away?
Therefore, revetment barriers that are very close to the natural environment can be created.

[Brief description of the drawings]

FIG. 1 is a side view of an applied state of a seawall protection block according to the present invention.

FIG. 2 is a side view of an applied state of a seawall protection block according to the present invention.

FIG. 3 is a front view (A), a plan view (B), a side view (C), and a bottom view (D) showing a seawall protection block according to the present invention.

FIG. 4 is a front view (A), a plan view (B), a side view (C), and a bottom view (D) showing another revetment protection block according to the present invention.

FIG. 5 is a front view (A), a plan view (B), a side view (C), and a bottom view (D) showing still another seawall protection block according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... River bank 2 ... Riverbed 3 ... Seawall protection block 4 ... Foundation block 5 ... Wave breaking protrusion 6 ... Filling material 7 ... Suspension ring 9, 9a-9c ... Space

Claims (3)

(57) [Claims] 1. A concrete block was laid on shore and bed of the river to the revetment and Mamoruyuka, the upper surface of the base block for the root solid in a square plate shape, made gentle by disrupting the flow of the river pyramid A block for seawall protection, wherein a plurality of wave-shaped protrusions of a shape or a hemisphere are integrally formed. 2. The block according to claim 1, wherein a space surrounded by the wave breaking protrusion is formed on an upper surface of a foundation block. 3. The wave-absorbing projection according to claim 1, wherein
Or between the revetment Mamoruyuka block, characterized in that the filling material in the pebbles in space surrounded by the wave dissipating projection is on.