JPH11247159A - Protection block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reclaim an environment in which organisms are easy to live without damaging a natural landscape by providing a space part which is filled with natural substances in the inside of a block body, providing an opening part outward facing the space part in the front face part of the block body, and providing a strength reinforcing part in the rear face part of the block body. SOLUTION: A revetment block 1 as a protection block constitutes a bank laid on the inclined laying face of the bank reclaimed on the foundation of a river, sea or the like by stage. The protection block 1 is provided with a block body 11 integrally molded on a substantially rectangular parallelepiped by portland cement or the like, and a space part 13 filled with a rock, gravel, wood or the like is provided in the inside of the block body 11. In addition, a plurality of opening parts 14 outward facing natural substance filled into the space part 13 are provided through a partition part 15 on the water side front part 11a of the block body 11, and a strength reinforcing part 19 for reinforcing the strength of the block body 11 is provided on the side of the rear face part 11c of the block body 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protection block laid on an embankment such as a river, a cut slope of a mountain, or the like.

[0002]

2. Description of the Related Art Adhesion blocks used for embankments in rivers, the sea, etc. are used by being laid on a laying surface on which concrete blocks are formed. Therefore, the embankment of the embankment is made of concrete with the embankment block on the surface of the embankment.

[0003]

However, when a levee is constructed using such a block, the surface of the levee is made of concrete, which impairs the natural scenery. In addition, when such a levee is constructed, the surface of the levee will be significantly different from the environment before the revetment work, and it will be difficult for the organisms that lived before the revetment work to live after the revetment work .

[0004] Therefore, an object of the present invention is to provide a support block capable of creating an environment in which living things can easily inhabit without damaging the natural scenery.

[0005]

In order to solve the above-mentioned problems, a support block according to the present invention is provided with a space portion in which a natural object is filled, and removes the natural object filled in this space portion. It is provided on the front surface of the flock body facing outward when the opening facing the side is laid. Further, a strength reinforcing portion for reinforcing the strength of the block main body is provided on the back surface of the block main body. In such a support block, since a natural object is exposed to the outside from the opening, it is possible to prevent creatures from easily parasitic on the natural object filled in the space and prevent the natural scenery from being damaged.

Further, in order to solve the above-mentioned problems, the support block according to the present invention is provided with a natural object disposing portion on which a natural object is disposed on an upper surface portion facing outward, and a bottom surface on a laying surface side. The portion is provided with a strength reinforcing portion for reinforcing the strength of the block body. In such a support block, the natural creatures disposed in the natural arranging portion provided on the upper surface portion are easily parasitized, and the natural scene is prevented from being damaged.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A seawall block to which a block according to the present invention is applied will be described below with reference to the drawings. As shown in FIG. 1, for example, this revetment block 1 is laid in a stepwise manner on an inclined laying surface of a bank 2 laid under ground, such as a river or sea, to constitute a dike 3. As shown in FIGS. 1 and 2, the revetment block 1 has a substantially rectangular parallelepiped and has a block body 11 integrally formed of, for example, Portland cement. As shown in FIGS. 2 and 3, the block main body 11 is provided with a space 13 in which a natural object 12 is filled. The space 13 is provided slightly toward the front surface 11a of the block body 11a.

Here, the natural object 12 is a rock in a river,
Gravels, trees, and other riverside materials are used, and those similar to the environment before the construction of the embankment 3 are particularly preferable. In addition, the size of the natural object 12 is set to a size that does not flow out of a first opening 14 described later.

The block body 11 has a waterside front part 11.
A plurality of first openings 14 for interposing the natural object 12 filled in the space 13 to the outside are provided in the space a. Each of the first openings 14 is formed to have such an opening size that the natural object 12 filled in the space 13 does not flow outside.

Further, a front portion 11a of the block body 11 is provided.
Is formed as an outflow prevention portion 16 in which a peripheral portion where the first opening portion 14 is not formed, that is, a rising portion from four side surfaces adjacent to the front surface portion 11a prevents the natural object 12 from flowing out. Thus, the outflow prevention unit 16 can prevent the natural object 12 from flowing out of the first opening 14 provided in the front surface 11a which is a vertical wall with respect to the bottom surface where the natural object 12 easily flows out. As described above, the block main body 11 in contact with the water surface of the river is provided with the first opening 14 on the front surface 11a, and the natural object 12 is exposed from the first opening 14 to the outside. An environment in which organisms such as animals and plants can easily live can be created.

A second opening 17 is provided in the upper surface 11b of the block body 11 to allow the natural object 12 filled in the space 13 to face outward. The upper surface 11b of the block body 11 has a second opening 17 having a slightly smaller area than the upper surface of the space 13, and an outflow preventing portion 18 for preventing the natural object 12 from flowing around the second opening 17. Is provided. As described above, the second opening 17 is provided in the upper surface 11b of the block main body 11, and the natural thing 12 is exposed to the outside from the second opening 17, so that the creature easily inhabits the creature. Can create an environment. In addition, the second opening 17 is provided so that the filling operation of the natural object 12 can be easily performed.
Is formed to be larger than the opening area of the first opening 14 because the natural object 12 is hard to flow out.

Further, the back portion 11c of the block body 11
On the side, as shown in FIG. 3, a strength reinforcing portion 19 for reinforcing the strength of the block body 11 is provided. The strength reinforcing portion 19 is configured by filling with cement. That is, the reinforce block 19 is provided by
When it is laid, it is provided on the back part 11c side located on the laying surface on the bank 2 side, so as not to harm the natural scenery.

As shown in FIGS. 1 and 2, such a revetment block 1 is laid in steps on a bank 2. Specifically, the revetment block 1 is configured such that the front portion 11a faces the waterside, the rear portion 11c is located on the laying surface side, and the bottom portion 11d of the revetment block 1a located on the upper side corresponds to the lower revetment block 1b. Second opening 17 provided on upper surface 11b
Is laid on the bank 2 in a step-like manner so as not to block. And the revetment block 1 is provided with the first opening 1 of the front surface 11a.
4 and the natural object 12 through the second opening 17 of the upper surface 11b.
Is filled.

As described above, the revetment block 1 is provided with the first and second openings 14 and 17 on the front surface 11a and the upper surface 11b facing outward, respectively. From 17, the natural object 12 filled in the space 13 faces outward. Therefore, when the revetment block 1 is submerged, underwater organisms such as fish, aquatic plants, and microorganisms are the first.
Further, it is possible to create an environment that is easily parasitic on the natural object 12 in the space 13 from the second openings 14 and 17. In addition, the revetment block 1 has the first revetment even if it is not flooded.
In addition, it is possible to create an environment where animals and plants can easily live in the natural objects 12 filled in the space 13 through the second openings 14 and 17.

The revetment block 1 is provided with a strength reinforcing portion 19 on the side of the rear portion 11c that is not exposed to the outside to secure the strength of the block main body 11, and has a reinforcing portion on the side of the front surface 11a and the upper surface 11b facing the outside. Since the first and second openings 14 and 17 are provided to create an environment where living things can easily inhabit, it is possible to prevent the natural scenery from being damaged while maintaining the strength of the block body 11.

Further, as described above, the revetment block 1
When laid in steps, the second opening 17 is not closed, so that the work of filling the natural object 12 after laying can be easily performed.

The revetment block 1 may be provided with a position restricting portion for restricting a position to be laid on the back of the block main body 11, as will be described later.
An opening may be further provided in the upper surface and / or the side surface of the first opening 14.
An outflow prevention net may be attached so that the natural substance 12 filled in 3 does not flow out.

Next, another revetment block 20 to which the present invention is applied will be described with reference to FIG. In addition, the same members as those of the above-described revetment block 1 are denoted by the same reference numerals, and the details are omitted. This seawall 20
As shown in FIG. 4, a feature is provided on the rear side of the block main body that is provided with a position restricting portion that restricts a laying position when laying on the laid portion 21 on which the seawall block 20 is laid.

Specifically, this revetment block 20 is shown in FIG.
As shown in the figure, the space portion 13 filled with the natural object 12 is provided on the side of the front surface portion 22a of the block body 22 slightly.
The natural object 12 filled in the space 13 in the front part 22a of the second
A plurality of the above-mentioned first openings 14 are provided so that the natural objects 12 are filled in the space 13 on the upper surface 22b.
The above-mentioned second opening 17 is provided so as to face the outside.
On the back surface 22c side of the block body 22, a strength reinforcing portion 19 is provided.

The strength reinforcing portion 19 is provided with a position regulating portion 23 protruding toward the back side. The position restricting portion 23 is a laid portion 21 on which the revetment block 20 is laid.
Restrict the laying position when laying in Position regulating part 23
Is provided in a substantially central portion of the back portion 22c of the block body 22 so as to protrude in a direction in which the revetment blocks 20 are stacked,
Both sides are cut out in an arc shape.

The laid portion 21 on which the revetment block 20 is laid, as shown in FIG. 4, is formed by stacking concrete blocks in the vertical direction, for example, and the protruding portion 25 whose laying surface protrudes outward in an arc shape. And a concave portion 26 provided continuously with the convex portion 25. The recess 26 has an area approximately equal to the installation area of the position regulating portion 23.
The position restricting portion 23 is fitted to the position, and the laying position of the revetment block 1 is restricted.

As shown in FIG. 4, such seawall blocks 20 are vertically laid and laid. Specifically, the revetment block 20 is vertically stacked such that the front surface portion 22a provided with the first opening portion 14 faces the river side and the position regulating portion 23 fits into the concave portion 26 of the laid portion 21. It is laid. Since the revetment block 20 is laid in this way, it is possible to prevent the laying position from being shifted even when a very large water pressure is applied, for example, when a river rises.

The revetment block 20 has a front surface 22a provided with the first opening 14 facing the waterside. Therefore, when the revetment block 20 is submerged, underwater organisms such as fish, aquatic plants, and microorganisms are formed. Are the first and second openings 14,
17 can create an environment that is more likely to infest the natural objects 12 in the space 13, and even if the revetment block 20 is not flooded, the first and second openings 14, 1.
Thus, an environment where animals and plants can easily inhabit the natural objects 12 filled in the space 13 can be created.

The revetment block 20 is provided with a strength reinforcing portion 19 on the side of the rear portion 22c that is not exposed to the outside to secure the strength of the block body 11, and has the second portion on the side of the front portion 22a and the upper surface 22b facing the outside. Since the first and second openings 14 and 17 can be provided to create an environment where organisms can easily inhabit, it is possible to prevent the natural landscape from being damaged.

In the above description, the seawall block 20 is provided with the second opening 17 provided on the upper surface portion 22b side. However, the seawall block 20 provided with the first opening 17 is located outside. Only the uppermost revetment block is required, and the second and subsequent revetment blocks are not necessarily provided since they are closed at the bottom of the upper revetment block.

Further, another revetment block 30 to which the present invention is applied will be described with reference to FIG. In addition, the same members as those of the above-described revetment block 1 are denoted by the same reference numerals, and the details are omitted. This revetment block 30
Is characterized in that the opening area of the first opening provided on the front surface of the block body is smaller than that of the first opening 14 described above.

Specifically, this revetment block 30 is shown in FIG.
As shown in the figure, the space portion 13 filled with the natural object 12 is provided on the side of the front surface portion 31a of the block body 31 slightly.
Natural object 12 filled in space 13 in front part 31a of 1
There are provided a plurality of first openings 32 that allow the natural object 12 filled in the space 13 to face outward on the upper surface 31b. Also,
On the back surface 31c side of the block body 31, a strength reinforcing portion 1 is provided.
9 are provided.

Each of the first openings 32 is formed to be smaller than the opening area of the first opening 14 of the seawall block 1 described above, and a larger number is provided than in the case of the seawall block 1. Here, the shape of the first opening 32 is shown in FIG. 5 as a perfect circle, but is not limited to this, and may be a polygon such as an ellipse, a triangle, or a quadrangle. .

[0029] Such a revetment block 30 is similar to that shown in FIG.
And as shown in FIG. 4, it is laid in a stepwise or vertical direction with the front part 31a facing the river side. And
Such a revetment block 30 can reduce the opening area of the first opening 32 and increase the number of openings, thereby filling a natural object smaller than the natural object 12 to be filled in the revetment block 1 described above. .

The revetment block 30 has the front side 31a provided with the first opening 32 directed to the waterside, so that when the revetment block 30 is submerged, the first and second underwater creatures are formed. From the openings 32 and 17 of the space 13
Can create an environment that is easy to parasitize with natural objects 12 inside
Further, even when the revetment block 20 is not flooded, an environment where animals and plants can easily inhabit the natural object 12 filled in the space 13 through the first and second openings 32 and 17 can be created. .

The revetment block 30 is provided with a strength reinforcing portion 19 on the back portion 31c which is not exposed to the outside, to secure the strength of the block body 31, and has a reinforcing portion on the front portion 31a and the upper surface portion 31b facing the outside. Since the first and second openings 32 and 17 can be provided to create an environment where organisms can easily inhabit, it is possible to prevent the natural landscape from being damaged.

Although the seawall block 30 has been described above in the case where the first opening 32 has a small area, the second opening 17 may be formed by a plurality of small-area openings. In addition, the back part 3 of this revetment block 30
1c may be provided with the position restricting portion 23 provided on the back portion 22c of the seawall 20 described above.

Further, another revetment block 40 to which the present invention is applied will be described with reference to FIG. In addition, the same members as those of the above-described revetment block 1 are denoted by the same reference numerals, and the details are omitted. This revetment block 40
Is characterized in that, as shown in FIG. 6, a plurality of protruding portions are formed on the front surface of the block body to increase the area of the front surface. The revetment block 40 has a third
Is provided.

Specifically, this revetment block 40 is shown in FIG.
As shown in FIG. 2, the block body 41 has a space 13 provided therein. In the block main body 41, a plurality of semicircular arc-shaped protrusions 42 are formed on a front surface 41a facing the river. Thereby, the front part 41a of the block body 41
Can increase the area.

A plurality of first openings 43 are provided on the front surface 41a of the block body 41 so as to correspond to the plurality of projections 42 and allow the natural objects 12 filled in the space 13 to face outward. Since the first opening 43 is provided in the protrusion 42, the opening area can be increased, and a large amount of the natural object 12 filled in the space 13 can be exposed to the outside.

The block body 41 has an upper surface portion 41.
b, the second opening portion 17 is provided, and the back portion 41c is provided.
A strength reinforcing portion 19 is provided on the side. The block main body 41 is provided with a third opening portion 44 on the side surface portions 41d and 41e adjacent to the front surface portion 41a and the upper surface portion 41b to allow the natural object 12 filled in the space portion 13 to face outward. Since the third openings 44 are provided in the side surfaces 41d and 41e, for example, they are arranged at both ends of the embankment when laying on the embankment, and the natural object 12 can be exposed outward from the side facing outward. .

Such a revetment block 40 is provided in FIG.
And as shown in FIG. 4, it is laid in a stepwise or vertical direction with the front part 41a facing the river side. The seawall block 40 is provided with the projection 42 on the front surface 41a and the first opening 43 on the projection 42, so that the opening area of the first opening 43 can be increased. Can face the natural object 12 outside. Therefore, when the revetment block 40 is submerged, the underwater creatures are protected by the first and second openings 4.
It is possible to create an environment that is more likely to be parasitic on the natural object 12 in the space 13 than in the case of 3 or 17, and even if the revetment block 40 is not flooded, the first and second openings 4 can be formed.
It is possible to create an environment where animals and plants can easily inhabit the natural objects 12 filled in the space 13 from the areas 3 and 17.

In addition, the revetment block 40 has both side portions 41.
Since the third opening 44 is provided in d and 41e,
For example, by laying at both ends of the embankment, the natural object 12 can face outward from the third opening 44 on the side that is not blocked by the adjacent revetment block 40. Thereby, the revetment block 40 can create an environment where organisms can easily live.

The third opening 44 may be provided only on the side facing the outside. In addition, the third opening 44 is provided with the revetment blocks 1 and 2 described above.
0, 30 may be provided. Further, the first to third openings 43, 17, and 44 of the seawall block 40 may be formed by openings having a small area like the first opening 32 of the seawall block 30 described above.

Further, another revetment block 50 to which the present invention is applied will be described with reference to FIG. In addition, about the same member as the revetment block 1 mentioned above,
The same reference numerals are given and the details are omitted. As shown in FIG. 7, the revetment block 50 does not allow natural objects filled in the space provided inside the block main body to flow out into the first opening provided on the front side of the block main body facing the river. Characterized in that the outflow prevention net is attached as described above.

More specifically, this revetment block 50 is shown in FIG.
As shown in FIG. 5, the space 13 for filling the natural object 12 is provided on the side of the front surface 51a of the block body 51 slightly.
The natural object 12 filled in the space 13 in the front part 51a
A plurality of the first openings 14 are provided so as to face the outside, and the natural object 12 filled in the space 13 is provided on the upper surface 51b.
The above-mentioned second opening 17 is provided so as to face the outside.
In addition, a strength reinforcing portion 19 is provided on the back surface 51c side of the block body 51.

The block body 51 has a front surface 5.
1a, a space 13 is formed so as to cover the first opening 14.
An outflow prevention net 52 for preventing the natural substance 12 filled in the water from flowing out is attached. The outflow prevention net 52 is made of, for example, a rust-proof wire mesh. The outflow prevention net 52 is provided in the space 13
Is determined according to the size of the natural object 12 to be filled.
Therefore, by using the outflow prevention net 52 having a fine mesh, small natural objects 12 such as earth and sand can be removed from the space 1.
3 can also be filled. Such an outflow prevention net 52 can be attached so as to cover the first opening 14 when the cement is solidified, for example, when the block body 51 is manufactured.

Such a revetment block 50 is provided in FIG.
And as shown in FIG. 4, it is laid in a stepwise or vertical direction with the front part 31a facing the river side. And
The revetment block 50 can prevent the natural object 12 from flowing out of the space 13 because the outflow prevention net 52 is attached to the first opening 14 from which the natural object 12 easily flows.

In addition, since the front wall 51a provided with the first opening 14 is directed toward the river, the creatures enter the space 13 through the first and second openings 14,17. It is possible to create an environment that is likely to be parasitic on the natural object 12. Further, the seawall block 50 is provided with the strength reinforcing portion 19 on the side of the rear portion 51c that is not exposed to the outside, to secure the strength of the block body 51, and to face the front portion 51a that faces outward.
And the first and second openings 14, 17 on the side of the upper surface 51b.
Since it is possible to create an environment where organisms can easily inhabit, it is possible to prevent the natural landscape from being damaged.

The outflow prevention net 52 is attached to the first opening 14 and the upper surface 51b of the upper surface 51b.
6b or the third opening 44 provided in the side surface portions 41d and 41e of the revetment block 40 shown in FIG.

Further, another revetment block 60 to which the present invention is applied will be described with reference to FIGS. The revetment block 60 is laid on an inclined laying surface 61 of the embankment 2 as shown in FIG.
The revetment block 60 has a concrete block main body 62 formed in a thin, substantially rectangular parallelepiped.

As shown in FIG. 9, the block main body 62 is provided with a plurality of concave natural object arrangement portions 64 via partition portions 63 on an upper surface portion 62a in contact with a river. The natural object disposition portion 64 is provided over a front portion 62b of the block main body 62 and a rear portion 62c facing the front portion 62b. Natural objects 6 arranged in such a natural object arrangement section 64
For 5, wood such as a long log is used in addition to the rocks and gravel in the river described above.

The block main body 62 is provided with a holding portion 66 for holding the natural object 65 disposed in the natural object disposition portion 64 in the natural object disposition portion 64. This holding part 6
Numeral 6 is made of, for example, a rust-proof wire mesh, and its peripheral edge is attached to the partition 63 of the block body 62. For example, when arranging a natural object 65 such as a rock in the natural object arranging section 64, after attaching the holding section 66, the natural space 65 is filled in the storage space formed by the holding section 66 and the natural object arranging section 64. What should I do? When a natural object 65 such as a log is disposed in the natural object disposition portion 64, the holding portion 66 may be attached to the block main body 62 after disposing the natural object 65 in the natural object disposition portion 64. .

Further, the bottom portion 62d of the block body 62
On the side, as shown in FIG. 9, a strength reinforcing portion 67 for reinforcing the strength of the block body 62 is provided. The strength reinforcing portion 67 is configured by being filled with cement. That is, when the seawall block 60 is laid on the laying surface 61, the strength reinforcing portion 67 is provided on the laying surface 61 side so as not to harm the natural scenery.

As shown in FIG. 8, such a revetment block 60 has a strength reinforcing portion 67 located on the laying surface 61 side and a top surface portion 62a facing the waterside, and a natural object disposing portion 64.
Is laid on the laying surface 61 in a state where a natural object 65 is provided. In addition, after the block body 62 is laid on the laying surface 61, a natural object 65 is provided on the revetment block 60, and the holding portion 6 is provided.
6, it is also possible to attach.

The revetment block 60 laid in this way
Since the natural object 65 is exposed to the waterside, it is possible to create an environment where organisms easily parasitize the natural object 65 arranged in the natural object disposing unit 64. In addition, revetment block 60
The strength reinforcing portion 6 is provided on the bottom surface 62d side which is not exposed to the outside.
Since the block 7 is provided, it is possible to prevent the natural scenery from being damaged while securing the strength of the block body 51.

As described above, the revetment blocks 1, 20, 30, and 4
Although 0, 50, and 60 have been described, a connecting portion for connecting with an adjacent revetment block may be provided on a peripheral side surface of a block main body constituting these revetment blocks 1, 20, 30, 40, 50, and 60. . Further, as described above, the revetment blocks 1, 20, 3 to which the protection block according to the present invention is applied.
Although 0, 40, 50, and 60 have been described, the present invention
However, the present invention is not limited to this, and may be provided to a defending block used to defend a lands such as a mountain slope.
In this case, it is possible to prevent the creatures, such as plants and microorganisms, from infesting the natural objects filled in the space portion of the block main body, thereby damaging the surrounding landscape such as mountains.

[0053]

According to the support block of the present invention, the space provided inside the block body and filled with natural objects, and the opening provided on the front side of the block body and facing the space outward. And the strength reinforcing portion provided on the back side of the block body to reinforce the strength of the block body, so that while maintaining the strength of the block body, it is easy for organisms to parasitize the natural objects filled in the space. Since this natural object can be seen outside, the natural environment can be protected and the natural scenery can be maintained.

Further, according to the support block of the present invention, the natural object disposing portion provided on the upper surface of the block main body and having the natural object disposed therein, and the natural object disposed on the natural object disposing portion is provided with the natural object disposing portion. And a strength reinforcing portion provided on the bottom surface side of the block body to reinforce the strength of the block body. This can protect the environment and maintain the natural scenery.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a usage example of a revetment block to which the present invention is applied.

FIG. 2 is a perspective view of the revetment block.

FIG. 3 is a longitudinal sectional view of the revetment block.

FIG. 4 is a perspective view showing an example of use of a revetment block provided with a position regulating portion for regulating the laying position on the back side.

FIG. 5 is a perspective view of a revetment block in which an opening area of a first opening provided in a front portion is reduced.

FIG. 6 is a perspective view of a revetment block in which the area of a front portion provided with a first opening is increased.

FIG. 7 is a perspective view of a revetment block in which a net for preventing outflow is attached to a first opening.

FIG. 8 is a perspective view showing an example of use of a revetment block provided with a natural object placement unit.

FIG. 9 is a perspective view of a block main body constituting the revetment block.

[Explanation of symbols]

1 revetment block, 11 block body, 12 natural objects, 13 space, 14 first opening, 16 outflow prevention part, 17 second opening, 19 strength reinforcing part

Claims (6)

[Claims] A space provided inside the block body and filled with a natural object; an opening provided in a front part of the block body and facing the space outward; a back part of the block body. And a strength reinforcing portion for reinforcing the strength of the block body provided in the support block. 2. The support block according to claim 1, wherein the block main body is provided with a restricting portion for restricting a mounting position on a back surface portion. 3. The support block according to claim 2, wherein an opening is further provided in the upper surface and / or the side surface of the space. 4. The support block according to claim 1, wherein one or more protrusions are provided on a front surface of the block body, and the opening is provided corresponding to the protrusions. 5. The support block according to claim 1, wherein an outflow prevention net for preventing the natural object from flowing out is attached to the opening. 6. A natural object arranging portion provided on an upper surface portion of the block main body and on which a natural object is arranged, a holding portion for holding the natural object arranged on the natural object arranging portion on the natural object arranging portion, A support block provided on the bottom surface side of the block main body and configured to reinforce the strength of the block main body.