JP2001152427A - Box-shaped concrete block for revetment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an environment maintenance type revetment box-shaped concrete block capable of circulating water between the box-shaped concrete blocks laid on a bank and permeating water in the bank. SOLUTION: The box-shaped concrete blocks comprises a polygonal or circular bottomed cylindrical body having a plurality of through hole parts 5 and at least a pair of projection parts 4, 4 on each side wall part 3, a pseudo-stone pattern 17 is formed on the outer face of a bottom part 6 or a through hole part 7 is opened in the bottom part 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a revetment box-type concrete block, and more particularly to a precast concrete block having a function of flowing river water, rainwater, groundwater, and the like.

[0002]

2. Description of the Related Art The use of precast concrete blocks for revetment of rivers and the like has become widespread. This type of precast concrete block is a solid block with a torso and a stay that is embedded and fixed in the embankment and riverbed, and is an alternative to conventional masonry. River water,
Rainwater and groundwater are less likely to penetrate the embankment. Therefore, plants and algae cannot be vegetated on the embankment or riverbed, which makes it unnatural, and as a result, insects and fish cannot inhabit.

[0003] Therefore, the inventors have made an effort to provide a precast concrete block used for revetment in a form that does not destroy the natural environment as much as possible.

[0004]

However, the conventional concrete block for revetment, which is itself a solid block or a box, does not particularly have a function of allowing water to flow inside or between adjacent blocks. Therefore, when laying on the surface of the embankment with such a thing,
River water, rainwater or groundwater does not penetrate the embankment,
It flows into rivers and rapidly increases the flow rate, causing floods and floods.

Accordingly, the present invention provides a box-type concrete block for revetment in which water can be circulated between box-type concrete blocks spread over the embankment and water can penetrate the embankment.

[0006]

According to a first aspect of the present invention, there is provided a box-shaped concrete block for revetment.
Each side wall has a box shape formed of a polygonal or circular bottomed cylinder having a plurality of through holes and at least one pair of protrusions, and a pseudo stone pattern is formed on the outer surface of the bottom. And

Further, as in the second aspect of the present invention, each of the side walls has a box shape formed of a polygonal or circular bottomed cylinder having a plurality of through-holes and at least a pair of projections. Is characterized in that a through hole is opened.

Further, as set forth in claim 3, each of the side walls has a box-like shape formed of a polygonal or circular bottomed cylinder having a plurality of through holes and at least a pair of protrusions. An engagement projection is formed on the upper surface of the portion, and an engagement recess is formed on the lower surface.

According to a fourth aspect of the present invention, the through hole has an outer opening width dimension of 10 to 30 mm and 100 to 30 mm.
0 mm, or both, and as described in claim 5, the through-hole is rectangular or circular, and as described in claim 6, The through hole has a truncated pyramid shape or a truncated cone shape.

Further, according to a seventh aspect of the present invention, the size of the protrusion protruding outward is 5 to 30 mm, and each of the protrusions crosses each side wall. It is characterized in that it is formed at a corner portion.

According to a ninth aspect of the present invention, a porous concrete block is fitted in a box-shaped concrete block, and as set forth in a tenth aspect, the porous concrete block has a box-shaped concrete block. A concave portion facing the through-hole portion of the block is formed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The revetment box-shaped concrete block 1 shown in FIG. 1 is, for example, formed in a box shape having a bottomed cylindrical body having a triangular planar shape, and is provided with a bottom portion 6 in a form in which an acute angle portion of each apex portion 2 is cut off. A plurality of through-holes 5 are formed in the side wall 3. Further, on the outer side of each side wall 3, there is a projection 4 which projects outward at a corner near each vertex 2.
Are integrally formed. Filling material such as soil, gravel or crushed stone is charged into the bottomed cylindrical body on the bottom 6 side.

The through hole 5 has a rectangular slit shape as shown in FIG. 9A, and preferably has an opening width w of 10 to 30 mm on the outside of each side wall 3. ),
As shown in (C), the inside of each side wall portion 3 is formed from the inside to the outside, or vice versa, in the shape of a truncated pyramid (a truncated pyramid) so that the internal filling does not flow out. The protruding portion 4 is formed integrally so as to form a water channel between the side wall portions 3 and 3 while keeping the adjacent space between the same type of revetment box-shaped concrete block 1 to be laid adjacently and constant. Has an overhang dimension h of 5 to 30 mm.

As shown in FIG. 9A, a pseudo stone pattern 14 is formed on the outer surface of the bottom 6 in a three-dimensional or planar manner, and this pseudo stone pattern 14 is on the surface side of a dike or the like. Therefore, the through-holes 5 can face each other between the adjoining revetment box-shaped concrete blocks 1 and water can flow therethrough, while the protrusions 4 are located between the adjacent side walls 3. 4
Are formed at a certain interval through the side walls 3,
If soil or gravel is charged between the three, a space (flow channel) through which water can flow is formed. The bottom 6 may be filled with soil, but is preferably filled with crushed stone, chestnut stone, or the like.

The revetment box-shaped concrete block 1a shown in FIG. 2 has basically the same shape and structure as the revetment box-shaped concrete block 1 except that a through-hole 7 is formed in the bottom 6 of the revetment box-shaped concrete block 1a. That is. The through hole 7 is a straight hole, but preferably has a frustum shape from the inner surface to the outer surface or vice versa as shown in FIGS. 9 (B) and 9 (C). Since the through-hole 7 is formed in the bottom 6, water on the surface side can flow through the bottom 6 at the time of rain or the like.

The revetment box-shaped concrete block 1b shown in FIG. 3 has basically the same shape and structure as the revetment box-shaped concrete block 1a. 5, 8 are opened, and the through-hole 8 has a larger opening area than the through-hole 5, and preferably the opening width W on the outer surface of each side wall 3 is 100 to 3
9 (B) and 9 (C), and has a truncated cone shape from the inner surface to the outer surface or vice versa to prevent the internal filling material from flowing out.

This revetment box-shaped concrete block 1b
May be filled with crushed stone, chestnut stone or the like, but a porous concrete block 9 as shown is fitted. The porous concrete block 9 is foam-formed concrete, has a high porosity, and has a property that water can easily flow through the gap. The porous concrete block 9 is formed with a concave portion 10 facing the through-hole portion 8, and the concave portion 10 is a place where water creatures enter and inhabit. The reason why the recess 10 is directed toward the through-hole 8 is that the opening area is larger than the through-hole 5, and of course, the recess 10 may be directed toward the through-hole 5, or the recess 10 may be directed toward both. Good. Therefore,
The revetment concrete block 1b is preferably disposed at a location below the water surface of the embankment.

A concrete block 1 for revetment shown in FIG.
c has basically the same shape and structure as the seawall concrete block 1b, except that a through-hole 7 is formed in the bottom 6. The through hole 7 is a straight hole, but preferably has a frustum shape from the inner surface to the outer surface or vice versa as shown in FIGS. 9 (B) and 9 (C).
Further, a porous concrete block 9a is fitted into the revetment concrete block 1c. The porous concrete block 9a is fitted as a similar shape that can be fitted to the bottom 6 without forming the concave portion 10.
In this example, the inconvenience of collecting natural stones filled with crushed stone, chestnut stone and the like can be eliminated.

A concrete block 1 for revetment shown in FIG.
d is basically the same shape and structure as the concrete block 1 for seawall, except that an engaging projection 12 is provided on the upper surface of each side wall 3 and an engaging recess 13 is provided on the lower surface of each side wall 3. Are integrally formed. The engaging projection 12 is the engaging recess 1
3 (see FIG. 9 (D)). Therefore, when a plurality of the same revetment concrete blocks 1d are stacked in the up-down direction, the board-like bodies which engage with each other up and down so as not to fall down are formed. There is an advantage that can be formed. Of course, it is also possible to lay a plurality of them on a dike or the like in a plane. In this case, the engaging convex portion 12 is embedded in the embankment surface to serve as an anchor, and the bottom portion 11 (see FIG. 9D) on the outer surface side of the bottom portion 6 can be filled with soil, gravel, crushed stone, chestnut stone, or the like. .

A concrete block 1 for revetment shown in FIG.
e is basically the same shape and structure as the concrete block for seawall 1d, except that a through-hole 7 is formed in the bottom 6 and the through-hole 7 is a straight hole. Preferably, as shown in FIGS. 9 (B) and 9 (C), it has a truncated cone shape from the inner surface to the outer surface or vice versa.
Since the through-hole 7 is formed in the bottom 6, water on the surface side such as rainfall can flow through the bottom 6.

The revetment block 1f shown in FIG. 7 is a polygonal box having a rectangular bottomed cylindrical body, and a through hole 5 and / or a through hole 8 similar to the previous example is appropriately formed in each side wall 3. And the bottom 6
Is closed, a pseudo-stone pattern 14 (not shown) is formed on the outer surface thereof, and a through hole 7 is opened if necessary. Projections 4 and 4 similar to the previous example are formed at corners where the side walls 3 and 3 intersect.

The revetment block 1g shown in FIG. 8 is a circular bottomed cylindrical body which is the ultimate form of a polygon.
A is provided with a through-hole 5 and / or a through-hole 8 similar to the previous example, the bottom 6 is closed, and a pseudo-stone pattern 14 (not shown) is formed on the outer surface thereof. Is established. Further, a plurality of projections 4 similar to the previous example are formed at predetermined intervals on the peripheral wall 3a.

A plurality of such revetment box-shaped concrete blocks 1, 1 a to 1 g are laid out on a dike or the like such that the side walls 3 face each other, and the adjacent intervals are kept constant by the projections 4, 4. The bottom 6 is filled with a porous concrete block, soil, quarry or chestnut stone and laid on a slope of a dike. The space between the side wall portions 3 between the revetment box-shaped concrete blocks 1 and 1a to 1f is filled with soil, quarry or chestnut stone. Box-type concrete block for revetment 1
When it is necessary to form a tower-like body, d and 1e form a braid that is hard to fall by stacking a plurality of them in the vertical direction.

The box-type concrete block for revetment of the present invention can be used not only for revetment but also for revetment by laying on a riverbed.

[0025]

According to the present invention described above, since it has a box-like shape consisting of a polygonal or circular bottomed cylinder having a plurality of through-holes and at least one pair of projections on each side wall,
When laid on embankments, etc., they are separated from each other at regular intervals, and the space becomes a water channel that does not hinder the flow of water.On the other hand, water can flow from the through hole to the inside, so water flows between the laid concrete blocks for revetment. As a result, the distribution of river water, rainwater, and groundwater becomes possible, and the destruction of the natural environment can be prevented.
In addition, the fossil stone pattern was formed on the outer surface of the bottom to create a scene close to the natural environment.Furthermore, the through-hole was opened at the bottom, so that rainfall etc. penetrated inside, and the top of each side wall Since the engagement convex portion, the lower surface is formed with an engagement concave portion, so that it is possible to form a tower-like body which does not fall down even if a plurality of them are stacked in the vertical direction,
In addition, there is an effect that the engagement convex portion can be embedded in the embankment to function as an anchor.

[Brief description of the drawings]

FIG. 1 is a perspective view of a revetment box-shaped concrete block showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a revetment box-shaped concrete block showing a second embodiment of the present invention.

FIG. 3 is a perspective view of a revetment box-shaped concrete block showing a third embodiment of the present invention.

FIG. 4 is a perspective view of a seawall box-shaped concrete block showing a fourth embodiment of the present invention.

FIG. 5 is a perspective view of a seawall box-shaped concrete block showing a fifth embodiment of the present invention.

FIG. 6 is a perspective view of a revetment box-shaped concrete block showing a sixth embodiment of the present invention.

FIG. 7 is a plan view of a revetment box-shaped concrete block showing a seventh embodiment of the present invention.

FIG. 8 is a plan view of a revetment box-shaped concrete block showing an eighth embodiment of the present invention.

9 (A) to 9 (D) are cross-sectional views of box-type concrete blocks for revetment.

[Explanation of symbols]

 1, 1a-1g ... box-shaped concrete block for seawall 2 ... vertex part 3 ... side wall part 3a ... peripheral wall part 4 ... projection part 5 ... through-hole part 6 ... bottom part 7 ... through-hole part 8 ... through-hole part 9, 9a ... Porous concrete block 10 ... recess 11 ... bottom 12 ... engagement projection 13 ... engagement recess 14 ... pseudo stone pattern

Claims (10)

[Claims] 1. A box-like shape having a polygonal or circular bottomed cylinder having a plurality of through holes and at least one pair of protrusions on each side wall, and a pseudo stone pattern is formed on an outer surface of the bottom. A box-shaped concrete block for revetment. 2. A box having a polygonal or circular bottomed cylindrical body having a plurality of through-holes and at least one pair of protrusions on each side wall, wherein a through-hole is formed at the bottom. A box-shaped concrete block for revetment. 3. A box shape comprising a polygonal or circular bottomed cylinder having a plurality of through holes and at least one pair of projections on each side wall, and an engaging projection on an upper surface of each side wall. A box-shaped concrete block for revetment, wherein a portion has an engagement concave portion formed on a lower surface. 4. The through hole has an outer opening width dimension of 10 to 30.
The box-shaped concrete block for seawall according to any one of claims 1 to 4, wherein the concrete block comprises any one or both of mm and 100 to 300 mm. 5. The box-type concrete block for seawall according to claim 1, wherein the through-hole is rectangular or circular. 6. The revetment box-shaped concrete block according to claim 1, wherein the through-hole has a truncated pyramid shape or a truncated cone shape. 7. The size of the protrusion protruding outward is 5 to 30.
mm.
Box-shaped concrete block for revetment described. 8. The method according to claim 1, wherein the projection is formed at a corner where each side wall intersects.
Box-shaped concrete block for revetment described. 9. The revetment box-shaped concrete block according to claim 1, wherein a porous concrete block is fitted in the box-shaped concrete block. 10. The revetment box-shaped concrete block according to claim 9, wherein the porous concrete block is formed with a concave portion facing the through hole of the box-shaped concrete block.