JP2761192B2 - Bed guard 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 protective floor block for preventing scouring.

[0002]

2. Description of the Related Art Conventionally, in general, a large number of protection blocks are continuously connected and laid downstream of a weir in order to protect a riverbed.

[0003] Then, a cutout portion is provided in each floor protection block to form a cavity surrounded by the floor protection block by each cutout portion, and the cavity portion is opened vertically and sideways. It reduces the resistance from running water and allows it to be used as a fish nest.

[0004]

However, in the above-mentioned bed protection block, the riverbed located immediately below the downstream end of the bed protection block group is scoured from the downstream side, and the water depth on the downstream side becomes deeper. As the row of guard blocks at the downstream end floats in the air away from the riverbed, and as scouring proceeds further, the downstream ends of the group of guard beds may become inconsistent under their own weight and may be damaged.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a bed guard block body and a floor plate attached to a lower surface of the bed guard block body, wherein the bed guard block body has at least two square vertices. Cut a fan-shaped part surrounded by arcs of equal diameter centered on a circle, a circular part centered on the center of a square, and a semicircular part of a small diameter centered on the midpoint of at least two sides of the square. It has a lacking planar shape, and forms a communication portion on the lower surface that communicates from the sector portion to the circular portion in the radial direction of the sector portion, and the floorboard has a sector portion and a circular portion formed on the protective floor block main body. And a semi-circular portion and a lower part of the communication part, which are closed.

Another feature is that the protective floor block main body and the floorboard are formed separately and connected by connecting means.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1A to FIG. 3A show a floor protection block according to the present invention. The floor protection block A is formed by bonding a floor plate b to the lower surface of a floor protection block main body a with an adhesive as a connecting means. It is formed.

[0009] Then, a large number of protection floor block bodies a are laid neatly in the front and rear and left and right directions on the riverbed K to form a protection floor block body group G. Only the bed protection block A according to the present invention is arranged to form the bed protection block row L.

As shown in FIGS. 3 to 7, the bed protecting block main body a has a sector 2 surrounded by arcs of equal diameter centered on the four vertices of a square, and a center centered on the center of the square. It has a planar shape in which a circular portion 3 having the same radius as the sector portion 2 and a semi-circular portion 4 having a small diameter centered on the midpoint of each of the four sides of the square are cut out, and the height direction is based on this planar shape. A communication portion 5 is formed on the lower surface in a radial direction of the sector portion 2 and communicates from the sector portion 2 to the circular portion 3.

In this way, as shown in FIG. 1, when the bed protection block main body a is laid in order in the front, rear, left and right, the circular section 3 is formed by the four adjacent sectors 2, 2, 2, 2. And a small circular space 9 is formed by two adjacent semicircular portions 4 and 4.

The communication section 5 is provided with a bed protection block main body a.
Are stacked, a space is formed between the guard block main bodies a, and flowing water flows into the circular portion 3 through the space.

In this embodiment, the radius of the circular portion 3 is made equal to the radius of the sector portion 2. However, it is a matter of course that the two portions may have different radii without being restricted by this.

Further, a reinforcing reinforcing bar 6 is buried inside the bed protection block main body a, and the reinforcing reinforcing bar 6 is formed in an annular shape as shown in FIGS. Projections 7 projecting outward are attached at four locations in the circumferential direction. The projection 7 is exposed to a space in the semicircular portion 4 as shown in FIGS. The exposed protrusion 7 is used for hanging a wire depending on the case and for lifting the floor protection block body a alone or the floor protection block A. Further, the bed protection block main body a can also be transported by hanging a wire on the circular part 3 or the sector part 2.

As shown in FIG. 4, the small circular space 9 is provided with a projection 7 through which the adjacent bed protection block main bodies a can be connected to each other via the coupling 10 shown in FIG. The connecting tool 10 is formed into a column having a diameter corresponding to the size of the small circular space 9 and the height thereof is formed to be equal to the height of the bed protection block main body a. . The recess 11 is formed to a height corresponding to the protrusion 7.

As shown in FIGS. 3 to 7, the floor plate is formed in a square plate shape, and the fan-shaped portion 2, the circular portion 3, the semicircular portion 4, and the communication portion 5 formed in the protective floor block main body a are formed. The lower part is closed.

FIGS. 10 to 14 show a bed protection block main body group G and a bed protection block A forming front and rear columns on the left and right sides of the bed protection block row L.
In addition, two sector-shaped parts 2, 2 and one circular part 3, three semi-circular parts 4, 4, 4 and two communicating parts 5, 5 are formed. 12 are formed.

The floor guard block A is formed by connecting a floor plate b to a lower surface of a floor guard block main body a by a connecting bolt 13 as a connecting means, and is shown in FIGS. 12, 13 and 15. As described above, the female threads 14, 14, 14 are buried in the lower three places of the bed protection block main body a, and each female thread is provided.
While the lower ends of 14, 14, 14 are opened to the outside, bolt insertion holes 1 corresponding to the female screw portions 14, 14, 14 are provided at three places of the floor plate b.
5, 15, 15 are formed in a vertically penetrating state. 16 is a washer.

In this way, each bolt insertion hole 15, 15, 15
The connecting bolts 13, 13, 13 are inserted from below the floor plate b, and the male screw portions 13a, 13a, 13a formed at the distal ends of the connecting bolts 13, 13, 13 are female screw portions 14, 14, 14 respectively. The floor plate b is removably connected to the floor protection block main body a by screwing the floor protection block main body a so that the floor protection block main body a can be used alone as required.

In the embodiment of the present invention, the above configuration is employed. When the riverbed K is protected by the protection bed block A and the protection block main body a according to the embodiment, the riverbed K is protected. As shown in FIGS. 1 and 2, a bed protection block body a is laid out in order in the front-rear and left-right directions to form a bed protection block body group G, and protection is provided only at the lowermost portion of the bed protection block body group G. The floor blocks A are arranged in the left-right width direction to form a row L of protective floor blocks.

In this manner, the floor protection block A forming the floor protection block row L comprises a floor plate below the fan-shaped portion 2, the circular portion 3, the semicircular portion 4, and the communication portion 5 formed in the floor protection block main body a. b, it is possible to prevent the sediment or the like of the riverbed K located immediately below these from being moved by the flowing water flowing through the communication part 5 and the like, and to wash the entire width of the riverbed K. Digging can be prevented. For this reason, it is possible to prevent breakage of the protective floor block group G due to scouring.

At this time, the connection between the adjacent bed protection block main bodies a is performed as follows using the connecting member 10. That is, after arranging the bed protection block main bodies a as shown in FIGS. 1 and 2, the connecting tool is connected to the small circular space 9 formed by the semicircular portion 4.
Insert 10 At this time, the protrusion 7 protruding into the small circular space 9 is fitted into the concave portion 11, and the protrusion 7 is arranged at the upper end of the concave portion 11 when the connecting tool 10 is completely housed in the small circular space 9. .

As a result, there is no movement between the bed protection block main bodies a. Further, the connection of the adjacent floor protection block bodies a in this manner fixes the floor protection block body group G arranged as shown in FIGS. 1 and 2 together with the weight of the floor protection block body a itself. Will do.

In the protective floor block main body a of the present embodiment, simply by inserting the connecting member 10 into the small circular space 9, the protective floor block group group G is fixed. Construction is very simple.

Moreover, even if the protective floor block bodies a are stacked in several stages in a stable state, the overall stability is not degraded at all, and in the state where the protective floor block bodies a are vertically stacked, the communication portion 5 Is a passage for guiding the flowing water to the circular portion 3, and the resistance of the flowing water can be reduced. In addition,
In this stacking, when the first-stage bed protection block body a is arranged in the state shown in FIG. 1 and the second-stage bed protection block body a is arranged upside down, the bed protection block body vertically adjacent to the bed protection block body a A space twice as large as the space formed by one communication portion 5 is formed by the communication portion 5a, so that the flowing water resistance is further reduced. Further, by forming the corners of the communication portion 5 to be round, it is possible to prevent abrasion when the human body touches the corners.

After fixing the bed protection block main body a in this manner, the stone bed 12 is placed in the space inside the circular portion 3 or the circular space 8 or the like.
It is good to input etc. The stones 12 are formed in the circular section 3 of the bed protection block main body group G due to the flow of water on the seabed or riverbed.
When it flows into the internal space or the circular space 8, it functions as a filter and plays a role in purifying flowing water. In addition, when the space in the circular portion 3 or the circular space 8 is filled with limestone, activated carbon, or the like, purification of agricultural chemical wastewater, city sewage, and the like is performed.

The group G of the bed protection block body is located at the bottom of the river.
If it is laid on the sea floor or the like, water flows freely in the space in the circular portion 3 and in the circular space 8 using the communication portion 5 as a flow path. Therefore, the space in the circular portion 3 and the circular space 8 can be used as fish nests. At this time, laying earth and sand, mats or the like mixed with an organic substance or its corrosive substance in the space in the circular portion 3 or the circular space 8, etc., is suitable for inhabitation, spawning, hatching of shrimp, crab, seafood, microorganisms, and the like. Environment can be created.

Furthermore, the space inside the circular portion 3 and the circular space 8
By vegetating bamboo, turf, or the like, the structural strength of the protective floor block main body group G can be improved.

Further, since the protective floor block A of the present invention and the protective floor block body a as a single body have a stable shape, they can be constructed to form structures such as seawalls, sabo, or piles. Excellent safety when stored in

It should be noted that the number of the guard bed block rows L is not limited to one, and a plurality of rows can be formed to secure the scouring prevention effect.

Also, in the above embodiment, the case where the protection floor block A and the protection floor main body a are laid on the riverbed, the seabed, or the like has been described. It can also be used as a block for various types of civil engineering work, such as for construction.

[0032]

According to the present invention, the following effects can be obtained.

That is, the bed guard block according to the present invention comprises:
In the case of laying it at the most downstream end of the conventional bedguard block group, the floor below the fan-shaped part, circular part, semi-circular part and communication part formed in the body of the bedguard block of the same floorbed block. Can be prevented from being moved by flowing water flowing in through the communication portion and the like, and the scour of the riverbed can be prevented. it can. Therefore, breakage of the protection floor block due to scouring can be prevented.

The cavity formed by the fan-shaped portion, the circular portion, the semicircular portion, and the communicating portion between the adjacent bedguard block bodies reduces the resistance received from flowing water and also functions as a fish nest. .

When the bed guard block body and the floorboard are separated, the bed guard block body is continuously connected and laid on the downstream side of the weir, and then placed on the most downstream side. The floor plate may be connected to the located revetment block body by connecting means.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view showing a state in which a protective floor block according to the present invention is laid.

FIG. 2 is a sectional view taken along line II of FIG. 1;

FIG. 3 is a perspective view of a guard block according to the present invention.

FIG. 4 is a plan view of the guard floor block.

FIG. 5 is a front view of the guard block.

FIG. 6 is a sectional view taken along line II-II of FIG. 4;

FIG. 7 is a sectional view taken along line III-III of FIG. 5;

FIG. 8 is a perspective view of a reinforcing reinforcing bar incorporated inside the guard floor block main body.

FIG. 9 is a perspective view of a connector inserted into a connection portion.

FIG. 10 is a perspective view of a protection block for arranging a riverbed side edge portion.

FIG. 11 is a plan view of the same guard block.

FIG. 12 is a bottom view of the guard floor block.

FIG. 13 is a sectional view taken along line IV-IV of FIG. 11;

FIG. 14 is a sectional plan view of the protective floor block.

FIG. 15 is a cross-sectional view showing a connection state between the protective floor block main body and the floor panel.

[Explanation of symbols]

 2 Fan-shaped part 3 Circular part 4 Semi-circle part 5 Communication part 6 Reinforcing reinforcing bar 7 Projection 8 Circular space 9 Small circular space 10 Connecting tool 11 Depression 12 Kuriishi

Claims (2)

(57) [Claims] 1. A bed protection block body, and a floor plate attached to a lower surface of the bed protection block body, wherein the bed protection block body is a circular arc having the same diameter around at least two vertexes of a square. The enclosed fan-shaped portion, a circular portion centered on the central portion of the square, and a planar shape in which a semicircular portion having a small diameter centered on the midpoint of at least two sides of the square, and On the lower surface, a communicating portion communicating from the sector to the circular portion in the radial direction of the sector is formed, and the floorboard is
A floor protection block, wherein a lower part of a communication between a fan-shaped part, a circular part, a semicircle part, and a communication part formed in the body of the floor protection block is closed. 2. The floor protection block body and the floorboard are separate bodies,
2. The protective floor block according to claim 1, wherein the protective block is connected by connecting means.