JPH0744533U - Revetment reinforcement block - Google Patents

Abstract

(57) [Summary] [Purpose] Conventional revetment reinforcement has the problem of deterioration over time, and it is known that when concrete is used, it adversely affects the self-cleaning action of rivers and the ecosystem. Became. Therefore, an object of the present invention is to reinforce the revetment surface without affecting the natural action of the river while sufficiently securing the revetment strength. [Structure] Adjacent natural stones are connected to each other using a connecting means to form an outer peripheral frame, while a filling material is arranged in an inner space surrounded by the outer peripheral frame. With such a configuration, the weight of the entire block is increased as compared with the case where each of the natural stone materials is piled up independently, and it becomes possible to sufficiently oppose a stronger flow force. Further, since the outer peripheral frame protects the packing material, the flow of the packing material can be minimized even when the flow force is extremely strong as in the case of flooding. Since a gap is created between each natural stone, oxygen in the atmosphere can be introduced into the river, creating a flow close to nature and maintaining the biological environment.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a revetment reinforcement block using natural stone, and more particularly to a reinforcement technique for improving the strength of a revetment.

[0002]

[Prior art]

 There are various types of revetment facilities that protect the dike slopes and shores of low-water canals at the waterfront of rivers, etc., and various slopes such as stone and concrete are applied to the revetment slopes. In general, as shown in FIGS. 8 and 9, in order to suppress the slope tip of the slope cover 1, a slope stay 2 and a root consolidation 3 are provided to maintain the strength of the revetment and adjust the water flow.

[0003] Conventionally, as the mooring 2, for example, there is one in which piles 4 are driven as shown in the figure or natural stones 5 are arranged between the piles 4 (stone filling). Some used (3a) or beef frame (3b). In recent years, in many cases, concrete blocks are placed on the slopes or natural stones are buried in concrete riverbeds instead of solidifying the groundwork 3 (a) to consolidate it. This point also applies to so-called flood control work for adjusting the flow of low-water canals.

[0004]

[Problems to be solved by the device]

 By the way, the following problems have been pointed out in the prior construction method for such seawalls. First of all, the stone packing, which is traditionally performed as hodome, often damages the piles 4 and causes each stone 5 to be swept away by flood force during a flood. This is a problem that tends to occur especially when the piles 4 are deteriorated or where the flow is strong during flooding.

Secondly, in the case of root consolidation using concrete, the surface is flat because the concrete is simply placed, but the river is not just a waterway but a natural self-cleaning action, and it does not affect algae and various types of water. It is a natural circulatory system that nurtures seafood. 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 in the pool and the unevenness of the pebbles. As a result, the intake of oxygen and a sufficient stirring action are not performed, the self-cleaning action of the river is weakened, and the natural balance is distorted.

Therefore, an object of the present invention is to sufficiently assure the strength of the revetment and to reinforce the revetment surface without affecting the natural action of the river.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object and to achieve the object, the seawall reinforcement block according to the present invention connects adjacent natural stones to each other by using connecting means to form an outer peripheral frame while being surrounded by the outer peripheral frame. Place the filling material in the inner space.

[0008]

[Action]

 In the reinforcing block according to the present invention, a large number of natural stones having a predetermined weight are juxtaposed and connected to each other through a rope means such as a wire rope to form an outer peripheral frame. The shape of each natural stone material is arbitrary, and the shape of the outer peripheral frame formed by the natural stone is appropriately designed according to the revetment slope, such as a substantially triangular shape, a substantially quadrangular shape, or a substantially hexagonal shape.

According to such a configuration, the weight of the entire block is increased as compared with the case where each of the natural stone materials is piled up independently, and it is possible to sufficiently counter a stronger flow force. Since the filling material placed inside the frame does not need to be connected, the work time per construction area is greatly shortened, and the construction cost is significantly reduced. In addition, since the entire outer frame protects the packing material, even if the flow is extremely strong, such as during a flood, the outflow of packing material is minimized. Of course, a gap is created between each natural stone, so that oxygen in the atmosphere can be introduced into the river, and this gap appropriately agitates the river water to create a flow close to nature to maintain the biological environment.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 and 2 show an example of a seawall reinforcement block according to the present invention. In this reinforcing block 10, a plurality of large natural stones 11 are provided with small-diameter through holes 12, the natural stones 11 are arranged so that the through holes 12 are in a straight line, and the wire ropes 14 are passed through the through holes 12. The connection strength of the natural stone 11 is increased. The natural stones 11 are arranged and arranged in the same size so as to form a block frame 20 having a substantially rectangular shape in plan view.

The block frame 20 is formed by arranging natural stones 11 in a square shape. The wire rope 14 is inserted into the through hole 12 and the end portion of the wire rope 14 is fixed at an appropriate position to make the whole block rigid. Support tied up. The natural stone 11c located at the corner portion needs to have the wire rope 14 inserted vertically and horizontally, and therefore has two through holes 12a and 12b as shown in FIG. The two through holes 12a and 12b may be formed in the same plane (FIG. 3b) or may be formed in two upper and lower stages (FIG. 3c).

The inner space P of the block frame 20 thus configured is filled with natural stones 21 for padding having an appropriate size. The natural stone 21 may be smaller than the natural stone 11 forming the block frame 20 and need not be fixed with concrete. This is because the overall weight and structure of the block frame 20 can withstand the flow of the river.

A plurality of block frames 20 are arranged according to the area of the installation site. In this case, one wire rope 14 may be provided for each length and width. Further, the length of the wire rope 14 may be set in an appropriate block unit. The minimum unit is one block frame 20, and the through hole 12 is looped around and fixed at an appropriate place, or the wire ropes 14 are inserted in the vertical and horizontal directions to fix both ends. When fixing the wire rope 14, for example, a clip and a washer are used, or the ends are fixedly tied to prevent the wire rope 14 from coming off the insertion hole 12.

Although the size of the natural stone 11 can be changed according to the river flow rate, it is desirable to use the river bed natural stone having a weight of 1 to 5 tons in view 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, and the like, but is usually about 5 to 10 pieces. The natural stones 11 do not need to have the same shape. Therefore, a certain gap is created between the adjacent natural stones 11, but filling stones may be arranged if necessary. The padding stone during this time increases the strength of the block frame 20 and can more strongly support the revetment against the flow and scouring.

Naturally, the shape of the through hole 12 does not matter. Further, it is desirable that the drilling position of the hole 12 is set near the center of gravity of the natural stone 11. The number of through holes formed in the stone material is not limited to one. When connecting larger stones, it is possible to form 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 force (especially the surface side) is provided with appropriate unevenness so that the natural flow is not lost.

Therefore, according to such a seawall reinforcement block, the weight of the whole including the block frame 20 is increased as compared with the case where the natural stones 11 are stacked alone, and the seawall purpose is sufficiently achieved even with a strong flow. You can Moreover, since the natural stones 21 for padding arranged in the space surrounded by the block frame 20 do not particularly need to be connected, the working time per construction area is greatly shortened and the construction cost is also reduced. Further, since the entire outer frame 20 protects the natural stones 21, the outflow of the natural stones 21 can be minimized even when the flow is extremely strong as in the case of flooding. Of course, since gaps are created between each natural stone, oxygen in the atmosphere can be introduced into the river, and this gap allows the river water to be appropriately agitated to create a flow close to nature and maintain the biological environment.

Although the reinforcing block according to the present invention constitutes the outer peripheral frame by using natural stone, the planar shape of the outer peripheral frame and the connecting method are not limited to those in the above-mentioned embodiment. For example, to connect adjacent stones with a wire rope, fix the anchor bolt 30 with the insertion ring 31 to the natural stone 11 by inserting the wire rope 14 into this ring 31, as shown in FIG. Is also good. The anchor bolts 30 are fixed by, for example, forming a buried hole in the natural stone 11 in advance, and inserting the leg portions of the anchor bolts 30 into the buried holes and fixing them with an adhesive.

Further, when such an anchor bolt 30 is used, the wire rope 14 can be inserted relatively freely, so that the wire rope 14 can be inserted vertically and horizontally as shown in FIG. is there.

The wire ropes 14 are connected to each other when the insertion holes 12 are formed in the natural stones 11. For example, as shown in FIG. 6, the wire ropes 14 are connected to each other at appropriate places (denoted by reference numeral Q). You may fix it. If such a connection is made, the natural stones placed in the corners can be omitted. The natural stones 11c at the corners shown in FIGS. 1 and 3 require the insertion holes 12a and 12b of the cross, so that the drilling work and the placement work may be troublesome, but the standards of the insertion hole 12 are unified. This will reduce the complexity of work. This is the same when the block frame 40 having a flat triangular shape is used, and its outline is illustrated in FIG. In the figure, the portion indicated by the reference sign Q is a fixed portion of the wire rope 14.

In the present invention, the block frame connecting means is not limited to the wire rope. Appropriate members having sufficient tensile strength and flexibility such as a rope member made of a suitable material and a rod-shaped member made of metal or resin can be used. The block according to the present invention does not necessarily exclude the use of concrete stone, but when concrete is used, it may exude components that are not preferable to the river environment such as ash components. However, natural stone 11 does not exude undesirable components into river water and is advantageous in cost.

[0021]

[Effect of device]

 As described above, the revetment reinforcement block according to the present invention forms a block frame by connecting natural stones and disposes stuffing stones inside the frame. Therefore, it is possible to reinforce the revetment without affecting the natural action of the river while securing sufficient revetment strength.

[Brief description of drawings]

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

FIG. 2 is a side sectional view of the reinforcing block shown in FIG.

FIG. 3 is a diagram showing an example of natural stones constituting a block frame.

FIG. 4 is a plan view showing a second embodiment of the reinforcing block according to the present invention.

FIG. 5 is a plan view showing a third embodiment of the reinforcing block according to the present invention.

FIG. 6 is a plan view showing a fourth embodiment of the reinforcing block according to the present invention.

FIG. 7 is a plan view showing a fifth embodiment of the reinforcing block according to the present invention.

FIG. 8 is a diagram showing a conventional example of seawall reinforcement.

FIG. 9 is a diagram showing another example of conventional seawall reinforcement.

[Explanation of symbols]

 10 Reinforcing block 11,21 Natural stone 12 Through hole 14 Wire rope 20,40 Block frame 30 Anchor bolt 31 Ring Q Knot of wire rope

Claims (1)

[Scope of utility model registration request] 1. A reinforcing block for arranging natural stones on a revetment, wherein adjacent natural stones are connected to each other using connecting means to form an outer peripheral frame, and an inner space surrounded by the outer peripheral frame is provided. A revetment reinforcement block that features a filling material.