JPH0653627U - Obi work block - Google Patents

Abstract

(57) [Summary] [Purpose] The conventional river belt construction requires the entire riverbed to be covered with concrete, which increases construction costs and adversely affects the natural balance of the river. Therefore, the purpose of the present invention is to eliminate the effect on the natural ecology and to minimize the cost when achieving the original purpose of the belt construction (head construction). [Structure] A small-diameter through hole is bored in a band masonry material, and a plurality of band masonry are curved and arranged in an arch shape while aligning the through holes bored in each stone, while a flexible cord is provided in the through hole. The means is inserted, and both ends of the cord means are fixed to the band masonry. This belt work block has an increased overall weight and resists scour, and since it is connected in an arch shape, the structural strength is improved. Also, the river foams and introduces oxygen to stir, creating a flow close to the natural environment. The cost is also reduced compared to concrete pouring.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slab stone material applied to a river bed, and particularly to a slab block that can maintain a good river environment.

[0002]

[Prior art]

 If the area where the river is steep is left as it is, the riverbed may be scoured or eroded, destroying the ecosystem and making effective use of the river difficult. Therefore, in areas where the riverbed slope is steep, belt work and head drop work have been performed to control the flow force.

There are various types of belt work and head drop work depending on the purpose of construction and economic conditions, but basically, some artificial material is placed on the river bed to raise or step. Specifically, as shown in FIG. 5, it is general to apply a belt work (falling work) 2 at a right angle to the flow of the river 1, and the structure is as shown in FIG. A concrete strip 3 is arranged, or a natural stone 5 is buried in a foundation 4 which is concrete-cast as shown in FIG. 2B, and the upper and lower parts of the head are fixed with concrete 6 as shown in FIG. There are things such as things.

[0004]

[Problems to be solved by the device]

 By the way, such a concrete strip construction requires the whole river bed to be covered with concrete, which increases the construction cost, and secondly, has an unfavorable effect on the natural balance of the river.

First, in terms of cost, concrete belt work requires complicated work such as design calculation, requires complicated work such as formwork, and requires a large number of workers. Appears as a result.

On the other hand, the effect of nature on the concrete strip work (head construction) is roughly as follows. First, it is known that lime and other unfavorable acres in the ecosystem ooze out from concrete, but in conventional belt construction (head construction), the contact area between river water and concrete is large, and In the short term, many bad components will flow into the river and the balance of the ecosystem will be easily destroyed. Secondly, the conventional river works simply arrange concrete and the surface is flat. However, the river is not just a waterway but a natural self-cleaning action. The natural self-cleaning action is achieved by introducing oxygen from the air due to the bubbling of the water flow due to the depressions and pebbles in the pebble, but the river water does not bubble on the flat concrete surface, Momentum becomes monotonous and oxygen intake and sufficient agitation cannot be performed, weakening the self-cleaning action of the river and distorting the natural balance. Oxygen can be introduced in the head drop construction, but there are problems such as the path of fish going up is blocked and the ecological area is narrowed.

Therefore, an object of the present invention is to eliminate the influence on the natural ecology and to minimize the cost when the original purpose of the belt construction (head construction) is achieved.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object and to achieve the object, a belt work block according to the present invention has a small diameter through hole formed in a stone work material, and arches a plurality of belt work stones while aligning the through holes formed in each stone. The cords were arranged in a curved shape and arranged on the one hand, while the flexible cord means were inserted into the through holes to fix both ends of the cord means to the band stone.

[0009]

[Action]

 In the band work block according to the present invention, a large number of band work stone materials having a predetermined weight are arranged in an arch shape, and tightly bound to the drilled holes through a rope means such as a wire rope and connected to each other. The shape of the stone material is arbitrary, and a gap may occur between adjacent stone materials.

In such a belt block, the curved projecting vertices are arranged so as to face the flow. Since this block increases the overall weight compared to the case where each stone material is arranged alone, it is possible to more strongly resist scouring and flow forces, and since it is connected in an arch shape, it has a structure. Strength is improved and it becomes possible to strongly oppose strong currents. In addition, a gap is created between each stone in the block, but the gravel and sand that has flowed into this block will naturally improve the strength. In addition, the presence of the gap makes the flow compliant, and it can give a course to the fish that has run up. In addition, as in the natural case, the river water bubbles to introduce atmospheric oxygen into the river, and the water stream is agitated appropriately to create a natural flow.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 4 show an example of a belt work block according to the present invention. In this belt work block 10, small-diameter through holes 12 are bored in a plurality of natural stones 11, and the natural stones 11 are arched and aligned so that the through holes are aligned in a line. While the connection strength of each natural stone 11 was increased through the wire rope 14, both ends of the wire rope 14 were fixed to the natural stone 11 by the clips 16 through the washers 15. In FIG. 2, reference character G is a bank, R is a river, and Q is a river bed. The blocks 10 connected by the wire ropes 14 are arranged so that the arch protruding side faces the upstream side and resists the flow.

Although the size of the natural stone 11 can be freely changed according to the river flow rate, it is desirable to use the river bed natural stone having a weight of about 1 to 5 tons in terms of the flow rate at the time of flooding of a general river. . The number of natural stones 11 to be connected can be appropriately set depending on the flow rate of the river, the shape of the river at the location where the natural stones 11 are used, the size of the natural stones 11 to be used, etc., but is usually about 5 to 10 pieces. The longer this connection is, the more weight of the whole block increases, which makes it possible to withstand a strong flow.However, the work becomes complicated and the maintenance becomes complicated. Use one block as a unit. At this time, if the natural stones 11R and 11L at the left and right ends are made larger than other stones, the stability against the flow force is further improved.

The natural stones 11 do not need to have the same outer shape. For this reason, and because the whole is aligned in an arch shape, a certain gap S is created between the adjacent natural stones 11, but a padding stone 18 is arranged in this portion as necessary. During this time, the strength of the block 10 as a whole is increased by the stuffing stones 18, and it becomes possible to more strongly counter the flow and scour. However, since this block 10 has an arch-shaped projecting surface facing upstream, the gravel and sand that have been washed away by the river will naturally be clogged in the gap S on the upstream side even if the filling stone 18 is not provided. There are many cases in which the rigidity naturally increases as a result. Moreover, since the gap S is provided in a part of the block 10 has the advantage of providing a course for fish going up, it is not always necessary to arrange the filling stones 18 in all the gaps S.

The diameter of the through hole 12 formed in the natural stone 11 is set to about 5 cm. Of course, this value can be changed as appropriate depending on the outer diameter of the wire rope 14 to be inserted, but when connecting about 20 to 40 natural stones 11 of about 1 to 5 tons and binding them together, the rope to be inserted is to be inserted. Since the line diameter requires at least about 16 mm, the inner diameter of the through hole 12 is often the above value. Drilling holes for each stone 11 is performed by a drill or other appropriate means. Of course, the shape of the through hole 12 does not matter. Moreover, it is desirable that the drilling position of the hole 12 is set near the center of gravity of the natural stone 11.

The wire rope 14 is fixed at both ends by the clips 16 because it is necessary to fasten the entire block 10, but the fixing method is not limited to the members such as the clips 16 and is arranged at a place where the flow force of the river is not so strong. In this case, the terminal may be fixed by human knotting with a knot. Of course, the wire end may be wound around the stone 11. The clip used here is a generic name for various members that connect the wire ends and can prevent the release of the fall from the through hole 12. As long as the member has a diameter larger than the inner diameter of the through hole 12, its shape or configuration does not matter.

According to the belt work block 10, since the natural stones 11 having a weight of several tons are assembled in an arch shape and connected, and the projecting side is arranged upstream, the structure strength due to the arch shape is improved. In addition, the block 10 withstands the flow of the river more strongly. In addition, the weight of the entire block allows it to withstand scouring, and the block 10 will not be washed away even during a flood. Moreover, since the shape of the natural stone 11 has the least resistance to the flow force, it is hard to be destroyed by scouring even if the flow force is intense, and the block is ground even if the ground changes. It is extremely unlikely that the construction part will be destroyed as it deforms freely according to changes in

Further, due to the shape of the natural stone, an appropriate gap S is generated between the stones, but due to the block shape, the river water is bubbled, oxygen is taken in, and the mixture is agitated to produce a product such as seafood or algae. Creates a good environment for the flock. In addition, the introduction of oxygen also promotes the self-cleaning action of the river, improving the basin environment.

Further, in the belt work block according to this embodiment, since the block is formed by using the natural stone 11, the negative influence on the river water is less than that when concrete is used. This is because a bad component (lime component, etc.) does not exude from the natural stone 11. When natural stone is used, the cost (material cost, work cost) can be significantly reduced compared to the conventional belt construction cost.

The strip work block according to the present invention does not always exclude the use of concrete stone. When concrete is used as block stone, the area of contact with water is smaller and the amount of concrete used is smaller than when covering the entire riverbed with concrete. Can be significantly reduced, and it is also advantageous in cost.

The rope means for connecting the entire blocks is not limited to the wire rope. It may be replaced by another material that is strong against pulling and flexible, such as various ropes knitted with a fiber reinforced resin or other material, or a tubular member made of a resin material. Also, when using concrete stone, it is desirable to make the shape as close as possible to natural stone and to provide appropriate gaps and resistance points against the flow force.

The number of through holes formed in the stone material is not limited to one. When connecting larger stones, it is possible to drill a plurality of through-holes and use the corresponding number of ropes if necessary. In addition, when it is necessary to arrange the stone shape, it is desirable that at least the part facing the flow (especially the surface side) is provided with appropriate irregularities so that the natural flow is not lost.

Further, the blocks are not only arranged in a row on the riverbed, but may be arranged in multiple stages in a planar manner from the upstream to the downstream, and may be stacked in a plurality of stages depending on the flow to form a three-dimensional structure. .

[0023]

[Effect of device]

 As described above, in the belt work block according to the present invention, small-diameter through holes are formed in the belt work stone material, and since the through holes are aligned and connected in an arched stone work line, the strength is sufficiently ensured and natural. It is possible to provide a belt work that keeps the river condition in the long term.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a band work block according to the present invention.

FIG. 2 is a II arrow view of the belt work block shown in FIG.

FIG. 3 is a cross-sectional view showing an arrangement example of the band work block shown in FIG.

FIG. 4 is a diagram illustrating a natural stone according to an embodiment of the present invention.

FIG. 5 is a diagram illustrating a conventional band work (drop work).

[Explanation of symbols]

 10 Belt work block 11 Natural stone 12 Through hole 14 Wire rope 15 Washer 16 Clip 18 Filling stone Q Riverbed S Gap R River (water surface) G Bank part

Claims (1)

[Scope of utility model registration request] 1. A small-diameter through hole is bored in a band masonry material, and while a plurality of band masonry stones are curved and arranged in an arch-like shape while aligning the opening points of the through holes bored in each stone, the through-bore can be inserted into the through hole. A banding block characterized in that a flexible stringing means is inserted and both ends of the stringing means are fixed to a bandwork stone material.