JPH0527135U - Sandbag fixed structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a sandbag fixing structure capable of stably fixing sandbags arranged in parallel and / or stacked on a sloped ground and having excellent fixing effect and durability. [Constitution] A large number of sandbags 8 are arranged in parallel on the inclined ground 7 and / or
Alternatively, the nets 1 are laminated and laid, and the surface of these sandbags 8 is covered with a net 1 having a hexagonal mesh formed by weaving synthetic resin monofilaments, and both end portions of the net 1 are fixed to the ground 7 by fixing members 8. Fix it.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixing structure in which the fixing stability of the sandbags is improved when a large number of sandbags are installed in parallel and / or stacked on an inclined ground.

[0002]

[Prior Art]

 For example, on sloping ground of a reclaimed land, since the sediment easily flows out due to rainwater, a large number of sandbags are arranged in parallel on the ground in a straight line or in a curved line to form drainage channels to mitigate the force of rainwater flowing down. However, there is a construction method to prevent the outflow of sediment.

However, especially on sloping ground, the force of rainwater flowing down is strong, and if the sandbags are simply installed in parallel or stacked, the sandbags will be washed away by the force of the rainwater and the sediment flowing down. A fixing means was used in which the sandbags were placed in a gabion and laid, or after the sandbags were laid, the sandbags were connected and fixed by a metal net or a plastic molding net.

However, when sandbags are placed in a gabion and laid, the gabion itself can be prevented from being destroyed, but the volume of the gabion itself cannot be increased so much that the gabion containing the sandbags is washed away by the outflowing rainwater. There was a limit to the fixing effect of sandbags.

[0005] Furthermore, when the parallel sandbags are connected and fixed by a metal net, there is a problem that the metal is corroded and the net is inferior in durability. Even if it is done, the coding film easily breaks when the net is fixed using a pile, or due to the contact between the pile and the net due to the rainwater flow-down force after installation, and the net corrodes from this part. Therefore, there was a problem that the durability of the fixing effect was poor. In addition, most of the construction sites for these are mountainous areas with poor footing, and the heavy metal nets make it difficult to carry and install.

[0006] Furthermore, when parallel sandbags are connected and fixed by a plastic molding net, the nets grow in a short period of time, so that the durability of the fixing effect is poor, and in a remarkable case, the nets are broken. .

Although it is possible to use a net woven of stretched multifilaments instead of the plastic molding net, these nets are not rigid and easily deformed, so they are fixed to the ground using piles or the like. The fixed effect is expected to be inferior.

[0008]

[Problems to be solved by the device]

 The present invention has been achieved as a result of investigations for solving the problems of the conventional sandbag fixing structure described above.

Therefore, an object of the present invention is to provide a sandbag fixing structure capable of stably fixing sandbags arranged in parallel and / or laminated on a sloped ground and having excellent fixing effect and durability. is there.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the sandbag fixing structure of the present invention comprises a plurality of sandbags arranged in parallel and / or laminated on an inclined ground, and a synthetic resin monofilament is woven on the surface of these sandbags. It is characterized in that a mesh body having a mesh of a mold is covered, and both end portions of the mesh body are fixed to the ground.

[0011]

[Action]

 In the sandbag fixing structure of the present invention, since the mesh body having a hexagonal mesh formed by weaving a synthetic resin monofilament is used as a material for fixing the sandbag, the sandbag can be stably fixed, and The fixing effect is extremely durable.

That is, since the net-like body is originally a material having excellent weather resistance and corrosion resistance and high rigidity, and further, since the hexagonal mesh is formed, the mesh strength is high and the mesh-like mesh is formed on the ground by a pile or the like. Even if it is fixed, it will not easily break. Moreover, since the reticulate body is lightweight, it can be handled as a long object and can be easily transported and laid.

Therefore, according to the sandbag fixing structure of the present invention, the sandbag is not easily washed away even by the rainwater or the sand flowing down, and the terrain on the sloped ground can be stably protected.

[0014]

【Example】

 Hereinafter, an embodiment of the sandbag fixing structure of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a plan view of a mesh body having a hexagonal mesh used in the sandbag fixing structure of the present invention. FIG. 2 is a perspective view showing a first embodiment of the sandbag fixing structure of the present invention. 2 is a sectional view taken along the line AA in FIG. 2, and FIG. 4 is a sectional view showing a second embodiment of the sandbag fixing structure of the present invention.

First, in the present invention, a net body having a hexagonal mesh (hereinafter referred to as a hexagonal net) used as a material for fixing sandbags will be described with reference to FIG.

As shown in FIG. 1, the hexagonal net 1 comprises a plurality of synthetic resin monofilaments that are crossed with each other and twisted so that a straight line portion 3 and a twisted portion 4 having a twist number of 2 or more are alternately continuous. It is a net-like body having a hexagonal hexagonal mesh 6 having six fulcrums 5 and opposite sides each consisting of a straight part 3 or a twisted part 4, and is a normal diamond. The strength of the mesh is superior to that of a mesh having a type mesh, and the mesh has the property of being difficult to unravel. It should be noted that selvages 2 are usually woven into both ends of the turtle shell net 1 to regulate the mesh 6.

As the synthetic resin monofilament forming the hexagonal net 1, polyamides, polyesters, polyolefins and polyhalogenated compounds containing appropriate additives such as pigments, weather-resistant agents, stabilizers and flame retardants as required. A monofilament having a diameter of 0.3 to 5.0 mm, particularly 1.0 to 4.0 mm formed by spinning and drawing a synthetic resin capable of being melt-spun or stretched such as vinyl by a usual method is mentioned. A stretched monofilament made of polyester typified by polyethylene terephthalate is most preferably used because it has excellent weather resistance.

The turtle net 1 can be easily manufactured by the method described in Japanese Patent Publication No. 63-66936 using the device described in Japanese Patent Publication No. 63-21574, for example.

Next, in the sandbag fixing structure of the present invention, as shown in FIG. 2, a large number of sandbags 8 are arranged in parallel and / or stacked on the sloping ground 7, and the sandbags are laid in a straight line or a curved line. It is characterized in that the surface of these sandbags 8 is covered with the turtle shell net 1, and both side ends of the turtle shell net 1 are fixed to the ground 7 using fixing members 9 such as piles, pins and anchors.

In the first embodiment shown in FIG. 2 and FIG. 3, as the hexagonal net 1, a polyethylene terephthalate monofilament having a draw ratio of 5 times and a diameter of 3.0 mm is woven, and the maximum dimension is 71 mm, and the twisted portion is A 4-meter wide hexagonal hexagonal mesh 6 having a width of 2 m was used.

In the first embodiment, first, sandbags 8 having a height of 15 cm, a width of 35 cm, and a length of 50 cm are stacked on the sloped ground 7 in two steps, and a plurality of sandbags 8 are stacked in a direction orthogonal to the sloped ground 7. Install in parallel.

Next, the turtle shell nets 1 are covered on the entire surfaces of the stacked and juxtaposed sandbags 8 while forming the lap portions 11 having a width of 10 cm, and the turtle shell nets 1 of the lap portion 11 are covered. The fixing structure of this invention can be completed by driving the piles 9 as the fixing members from the common mesh 6 to the inclined ground 7.

As described above, since the hexagonal net 1 has a characteristic that the mesh 6 is not easily unraveled, the above-mentioned overlapping portion 11 can maintain a good shape without further weaving a reinforcing wire or the like. It is possible to further improve the fixing strength of the sandbag 8 by driving the piles 9 into the meshes 6 of the overlapping portion 11 which are overlapped with each other.

As the fixing member, a U-shaped pin or an anchor can be used in addition to the pile 9 described above. It is possible to drive the sloped ground 7 from any side end of the tortoise shell net 1 covered with.

Further, particularly when the rainwater or the earth and sand flowing down is severe, as shown in FIG. 3, one side end of the hexagonal net 1, particularly the downstream side end of the sloped ground 7, is further reinforced with the reinforcement piles 10. By driving in, the fixing effect of sandbag 8 can be made more stable.

According to the sandbag fixing structure of the present invention configured as described above, the sandbag can be stably fixed to the sloping ground, and the fixing effect is extremely durable.

Therefore, for example, when the sandbag 8 is made to contain seeds and seedlings of vegetation, the sandbag is assimilated to the sloping ground 7 over time, forming a strong terrain without fear of landslides or outflow of sediment. It is possible.

On the other hand, the second embodiment shown in FIG. 4 differs from the first embodiment described above in that the sandbag 8 has a structure in which the entire surface of the sandbag 8 is covered.

That is, in this second embodiment, first, the turtle shell net 1 is laid on the sandbag laying site of the sloped ground 7 while forming an appropriate overlapping portion 11, and then the sandbag 8 is laid on the turtle shell net. Like the first embodiment, they are stacked and arranged in parallel.

Next, one end of the tortoise shell net 1 is rolled up so as to wrap the sandbag 8 and the both end parts of the tortoise shell net 1 are overlapped with each other to form an overlap portion 12, and this overlap portion 12 The fixing structure of the present invention can be completed by driving the pile 9 as the fixing member into.

In the second embodiment, the turtle shell net 1 is fixed to the sloped ground 7 on only one side of the sandbag 8. However, as in the first embodiment, the reinforcement is especially provided on the downstream side of the sloped ground 7. Driving the piles 10 eliminates the risk that the sandbags 8 will be washed away to the downstream side, and the fixing effect can be made stable.

Therefore, also with the fixing structure of the second embodiment, the same sandbag fixing effect as in the first embodiment can be obtained.

[0034]

[Effect of the device]

 As explained above, according to the sandbag fixing structure of the present invention, the sandbag can be stably fixed, and the sandbag is not easily swept away by the rainwater and the sand flowing down, and the terrain on the sloping ground is prevented. Can be protected permanently.

[Brief description of drawings]

FIG. 1 is a plan view of a mesh body having a hexagonal mesh used in the sandbag fixing structure of the present invention.

FIG. 2 is a perspective view showing a first embodiment of a sandbag fixing structure of the present invention.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a sectional view showing a second embodiment of the sandbag fixing structure of the present invention.

[Explanation of symbols]

 1 turtle shell net 2 selvage 3 straight part 4 twisted part 5 fulcrum 6 mesh 7 slanted ground 8 sandbag 9 pile (fixing member) 10 reinforcing pile 11 overlapping part 12 overlapping part

Claims (1)

[Scope of utility model registration request] 1. A plurality of sandbags are laid in parallel and / or laminated on an inclined ground, and a net having a hexagonal mesh formed by weaving a synthetic resin monofilament on the surface of these sandbags is covered, A sandbag fixing structure having both ends fixed to the ground.