JP2012067479A - Road crossing tunnel for wild animal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable wild animals separately living in habitats divided by a road for cars into the habitats on both sides thereof to mutually move between the habitats without interfering traffic on the road for cars.SOLUTION: The present invention comprises: a tunnel running under a road for cars from an opening section provided on one side of the road for cars to the opening section provided on the other side thereof; a passage belt which is arranged along a longitudinal direction of the tunnel and elevated at a prescribed height from a bottom section inside the tunnel; a trestle which supports the passage belt from underneath thereof; and a space section made up of the bottom of the tunnel and the trestle. The tunnel is constructed by a structure body (such as a corrugated pipe) fabricated from segmented wavy steel plates.

Description

  The present invention relates to a road crossing tunnel for wild animals that enables movement of habitats separated by habitats by automobile roads, particularly highways, between separated habitats.

  To date, many automobile roads have been built throughout Japan to facilitate the movement of people and goods. Automobile roads are built not only in urban areas but also in remote mountains. When automobile roads are built in remote mountains, that is, through wildlife habitats, wild animals (fox, raccoon dog, weasel, hare, wild boar, deer, bear, etc.) It often happens that people suddenly enter and walk on or cross the road.

  If a wild animal suddenly enters the car road and walks on the car road or crosses the car road, the car cannot avoid the wild animals, and the wild animals are hit by the car or splashed, There is a problem that precious wild animals are reduced, the ecosystem is adversely affected, and some species are endangered.

  In addition, if a wild animal suddenly enters an automobile road and walks or crosses an automobile road, the driver may accidentally drive the car in an attempt to avoid the wild animal and cause a serious car accident. There is a problem of causing serious car accidents.

  In addition, if the wild animals that entered the automobile road are large wild animals such as bears and deer, the car that collided cannot be left intact, causing damage to the car or injury to the driver or passenger. There is a problem that there are things to do.

  Therefore, there are cases where an animal approach prevention fence is installed on both sides of the automobile road to prevent wild animals from entering the automobile road. However, if this is done, there is a drawback that the road for automobiles completely divides the habitat of wild animals and leads to the extinction of wild animals.

  In addition, because the animal entry prevention fence is installed in nature for a long period of time, damage due to wind and rain or earth and sand cannot be avoided, and it is not possible to completely prevent the invasion of wild animals from the damaged part. Has the disadvantage of being unavoidable.

  In addition, when a large automobile road like a highway is created through a remote wildlife habitat, the wildlife habitat is completely divided and narrowed by the motorway. Animals become difficult to live, have a significant impact on wildlife ecosystems, and some species are at risk of extinction.

JP-A-8-199517 JP 2000-73440 A JP 2005-256364 A

  The problem to be solved is that wild animals that are divided on both sides of the automobile road cannot easily move.

  The present invention uses, for example, a plurality of corrugated steel sheets formed in an arc shape under an automobile road in order to enable mutual movement of wild animals that are divided on both sides of the automobile road. A tunnel that crosses the road for automobiles is formed with a structure (corrugated pipe, liner plate, etc.), and it is guided while planting and camouflaging so that wild animals can be brought close to the entrance and exit of this tunnel The most important feature is that it can.

  That is, the present invention provides a tunnel from an opening provided on one side of an automobile road to an opening provided on the other side of the automobile road through the lower side of the automobile road, and the tunnel A passage band provided along a longitudinal direction of the tunnel at a predetermined height position from the bottom of the inside, a pedestal for supporting the passage lane from below, a space formed by the bottom of the tunnel and the pedestal, And planting provided in a natural atmosphere around the opening of the tunnel.

  Here, the passage band can be formed by spreading earth and sand or moss on a plate-like steel plate such as a corrugated steel plate (deck plate, plank sheet, etc.), iron plate, striped steel plate, etc. Can be formed. Since the space formed by the bottom of the tunnel and the frame can be formed as a culvert, it is covered with the passage band for use as a waterway or a passage for smaller small animals.

  Here, as another invention, at least one small tubular body (such as a corrugated pipe or a steel pipe) may be installed in the length direction of the tunnel at the bottom of the tunnel.

  In addition, the planting can be formed with a basket frame filled with a planting mat (a mat in which plant seeds are embedded), stones, and earth and sand. The planting may be stacked so as to surround the opening from the front of the opening of the tunnel toward both sides of the opening, or the opening of the tunnel is blocked by the planting and hardly visible from the outside. May be. Further, the forest where wild animals are inhabited and the vicinity of the opening of the tunnel may be connected by the planting. You may connect them.

  The tunnel may be provided with odor generating means for generating a smell of food or of the opposite sex so as to actively attract wild animals into the tunnel, or to attract wild animals into the tunnel. Voice generation means for generating (voice calling by the opposite sex, voice telling that there is food, etc.) may be provided so that wild animals are actively attracted into the tunnel.

  The wild animal road-crossing tunnel of the present invention connects wildlife habitat areas separated by automobile roads with a tunnel, and enables mutual movement of wild animals that are divided on both sides of an automobile road. In addition, adverse effects on the environment caused by the construction of automobile roads can be reduced.

  In addition, the wild animal road crossing tunnel of the present invention uses a plurality of divided corrugated steel sheets to form a tunnel by assembling, so it is easy to make a tunnel of a size that matches the size of the wild animal to be protected. Can be formed.

  Moreover, the corrugated pipe which is one embodiment of the corrugated steel sheet has many achievements as a drainage pipe for crossing the road, and has high safety against external force such as earth pressure even if the plate thickness is relatively thin. In the wild animal road crossing tunnel of the present invention, when a tunnel is formed using a corrugated pipe, a tunnel having a desired strength can be formed at a low cost.

  In addition, the wild animal road crossing tunnel of the present invention is provided in a natural atmosphere around the opening of the crossing tunnel, so that the animal hides itself in the planting and closes the opening of the tunnel. Can be easily approached.

  In the wild animal road crossing tunnel according to the present invention, when the passage zone is formed by laying earth and sand or moss on a plate-like steel plate such as a plank sheet, an iron plate, a striped steel plate, etc. You can walk on the aisle without being wary.

  In addition, the road crossing tunnel for wild animals of the present invention, when the planting is formed with a car frame filled with planting mats and stones or earth and sand, it is not necessary to make the wild animals very cautious at the opening of the tunnel. Can be approached.

  In the wild animal road crossing tunnel of the present invention, when the planting is stacked so as to surround the opening from the front of the opening of the crossing tunnel toward both sides of the opening, You can get close to the tunnel opening without being wary.

  Moreover, the road crossing tunnel for wild animals according to the present invention has an opening portion of the tunnel without making the wild animals very cautious when continuously connecting the beast path in the forest where wild animals live and the passageway. Can be approached.

  In addition, the wild animal road crossing tunnel of the present invention is configured such that when a forest where wild animals are inhabited and the vicinity of the opening of the crossing tunnel are connected by the planting, the opening of the tunnel is not wary of the wild animals. You can get close to the part.

  In addition, the wild animal road crossing tunnel of the present invention can approach the opening of the tunnel without making the wild animal very cautious when the opening of the tunnel is blocked by the planting and is difficult to see from the outside. it can.

  Further, in the wild animal road crossing tunnel of the present invention, when the bottom of the tunnel is a water channel and the bottom is covered by the passageway, the wild animal cannot be drowned in the water of the water channel, and fallen leaves and garbage The problem that the water channel does not flow, the water channel is clogged with fallen leaves and the like, and the water channel does not flow is also eliminated.

In addition, when the wild animal road crossing tunnel of the present invention is provided with an odor generating means for generating a odor of food or a heterosexual odor in the tunnel, the wild animal is actively attracted into the tunnel and the opposite side is inhabited. The possibility of moving to the area can be increased.
Further, the wild animal road crossing tunnel of the present invention is provided with a voice generating means for generating a voice (a voice called by the opposite sex, a voice telling that there is food, etc.) that attracts the wild animal in the tunnel. Can be actively pulled into the tunnel and moved to the opposite habitat.

FIG. 1 is a cross-sectional view of an automobile road. FIG. 2 is a plan view of the automobile road. FIG. 3 is a cross-sectional view of the transverse tunnel of the present invention. FIG. 4 is a cross-sectional view of another cross tunnel of the present invention. FIG. 5 is an explanatory diagram showing a state in which the vicinity of the opening of the crossing tunnel of the present invention is viewed from the front. FIG. 6 is an explanatory view showing a state in which the vicinity of the opening of the crossing tunnel of the present invention is viewed from the side. FIG. 7 is an explanatory view showing a state in which the vicinity of the opening of the crossing tunnel of the present invention is viewed from above.

  The purpose of enabling the mutual movement of wild animals that are divided by the automobile road on both sides of the automobile road is realized with a relatively inexpensive member without impairing the strength of the crossing tunnel.

  An example of the general structure of an automobile road is shown in the drawing below. FIG. 1 is a cross-sectional view of an automobile road, and FIG. 2 is a plan view of the automobile road. As shown in these drawings, the automobile road has two-lane roads 12 and 12 with a central separator 10 in between. A slope 14 is formed obliquely downward from the road shoulders 12 and 12 to the outside from the road shoulders. An opening 16 is formed below the slope 14, and the opening 16 is connected to an opening 18 provided below the opposite slope 14 by a tunnel 20.

  FIG. 3 is a cross-sectional view of the transverse tunnel of the present invention. As shown in the figure, the tunnel 20 is formed by a corrugated pipe. The corrugated pipe is a lightweight and high-strength pipe formed by connecting arc-shaped galvanized steel sheets that are corrugated at right angles to the longitudinal direction in a cylindrical shape.

  A passage band 22 is provided along the longitudinal direction of the tunnel 20 at a predetermined height position from the bottom in the tunnel 20, and the passage band 22 is supported by a mount 24 from below. The passage band 22 is preferably formed by spreading earth and sand 28, moss, dead leaves, etc. on a corrugated steel plate made of a deck plate, a plank sheet 26, etc., but instead of the plank sheet 26, a plain steel plate, a striped steel plate or a wire mesh, A punching metal, an extended metal, or the like may be used. The gantry 24 is formed of H-shaped steel, steel pipe, or the like. The “plank sheet” is a trade name of a large deck plate formed by rolling a rolled steel plate into an angular waveform.

  FIG. 5 is an explanatory view showing a state in which the vicinity of the opening of the crossing tunnel of the present invention is viewed from the front, FIG. 6 is an explanatory view showing a state in which the vicinity of the opening of the crossing tunnel of the present invention is viewed from the side, and FIG. It is explanatory drawing which shows the state which looked at the opening part vicinity of the crossing tunnel from upper direction.

  In the vicinity of the openings 16 and 18 of the transverse tunnel 20 of the present invention, as shown in these drawings, the planting 30 is stacked so as to form a natural atmosphere. The planting 30 is composed of a car frame filled with a planting mat, earth and sand, stones, etc., and the openings 16, 18 are directed from the front of the openings 16, 18 of the tunnel 20 toward both sides of the openings 16, 18. When the seeds that have been piled up in the surroundings and germinated and planted on the planting mat have grown and the plant has grown, the cage, stones, and ground are hidden by the plant, creating a natural vegetation landscape.

  Here, if there is another underdrain that allows water to flow from the mountain side to the valley, water may flow there, but if there is no such underdrain, it is formed by the bottom of the tunnel 20 and the mount 24. Since the space part 27 can be formed as a culvert, it can be used as a drainage channel or as a passage for a smaller small animal. In addition, when the bottom part of the tunnel 20 is made into a culvert, it is covered with a passage belt 22. However, if the passage belt 22 is covered with earth or sand, wild animals will not fall into the culvert and fallen leaves, garbage, etc. This is because it will not clog the culvert.

  In addition, the beast road in the forest where wild animals are inhabited and the passage zone may be continuously connected, and the forest 30 where wild animals are inhabited and the vicinity of the openings 16 and 18 of the tunnel are planted 30. You may connect by. Further, the openings 16 and 18 of the tunnel 20 may be blocked by the planting 30 so that the wild animals can enter the tunnel 20 with peace of mind.

  In addition, odor generating means for generating a smell of food or a smell of opposite sex (pheromone) may be provided in the tunnel 20 so that wild animals are actively drawn into the tunnel 20. Alternatively, a voice generating means (for example, voice ROM + amplifier + speaker) for generating a voice that attracts wild animals in the tunnel 20 (a voice called by the opposite sex, a voice telling that there is food, etc.) is provided, and the wild animals are actively Alternatively, it may be drawn into the tunnel 20.

  As another invention, as shown in FIG. 4, at least one small tubular body 29 (corrugated pipe, steel pipe, or the like) may be installed in the length direction of the tunnel 20 at the bottom of the tunnel 20, thereby forming a space. In this case, the small tubular body 29 supports the passage band 22, the plank sheet 26 and the earth and sand 28 instead of the mount 24. When the small tubular body 29 supports the passage band 22 and the like, it is preferable to install two small tubular bodies 29 on the left and right.

DESCRIPTION OF SYMBOLS 10 Median strip 12 Road 14 Slope 16 Opening 18 Opening 20 Tunnel 22 Passage belt 24 Stand 26 Plank sheet 27 Space 28 Earth and sand 29 Small pipe 30 Planting

Claims (11)

  A tunnel from an opening provided on one side of the road for automobiles to an opening provided on the other side of the road for automobiles through a lower portion of the road for automobiles, and a predetermined height from the bottom in the tunnel. A passage band provided along the longitudinal direction of the tunnel at a position; a frame that supports the path band from below; a space formed by the bottom of the tunnel and the frame; Wildlife road crossing tunnel.   A tunnel from an opening provided on one side of the road for automobiles to an opening provided on the other side of the road for automobiles through a lower portion of the road for automobiles, and a predetermined height from the bottom in the tunnel. A road crossing tunnel for wild animals, comprising a passage band provided at a position along the longitudinal direction of the tunnel, and at least one small tubular body below the passage band.   The road crossing tunnel for wild animals according to claim 1 or 2, wherein the tunnel is a structure in which corrugated steel plates divided are assembled.   The road crossing tunnel for wild animals according to any one of claims 1 to 3, wherein the passage band is made of a flat steel plate, a striped steel plate, a wire mesh, a punching metal, an extended metal, a corrugated steel plate, or the like.   The road crossing tunnel for wild animals according to claim 4, wherein the surface of the passage zone is formed by laying a natural road material such as earth and sand, moss, dead leaves or the like.   The road crossing tunnel for wild animals according to any one of claims 1 to 5, comprising planting provided in a natural atmosphere around the opening of the tunnel.   The road crossing tunnel for wild animals according to claim 6, wherein the planting consists of a car frame filled with a planting mat and stones or earth and sand.   The road crossing tunnel for wild animals according to claim 7, wherein the planting is stacked so as to surround the opening from the front of the opening of the tunnel toward both sides of the opening.   The road crossing tunnel for wild animals according to any one of claims 1 to 8, wherein the beast path in the forest where wild animals live and the passage zone are continuously connected.   The road crossing tunnel for wild animals according to any one of claims 1 to 9, wherein a forest where wild animals live and the vicinity of the opening of the tunnel are connected by the planting. .   The road crossing tunnel for wild animals according to any one of claims 1 to 10, wherein voice generating means for generating a voice for attracting wild animals is provided in the tunnel.

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