JP2013240282A - Structure and method for preventing entering of animal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure and a method for preventing entering of an animal according to various installation modes of the road.SOLUTION: This structure prevents an animal from entering a road facility such as expressways. The structure includes a measure 10 disposed in a part of a drain intersecting an entering preventive fence F forming a boundary between the inside and the outside of the road facility. The measure 10 has an inflow port 11 connected with a drain 40 in the road facility on the upstream side and a discharge port 12 connected with a drain 42 outside the road facility on the downstream side, and a step of a suitable height is provided between the base of the drain 40 in the road facility and the base of the drain 42 outside the road facility in the draining passage of the measure 10. In a method for preventing an animal from entering the road facility such as expressways, in the drain intersecting the entering preventive fence F forming a boundary between the inside and the outside of the road facility, a step of a predetermined height is provided at a suitable position of the drain base in the vicinity of the entering preventive fence F, thereby disabling an animal from getting over the step.

Description

  The present invention relates to a structure and method for preventing various animals from entering a road facility such as an expressway or a toll road through a drainage facility.

If various animals invade into road facilities such as expressways and toll roads, a collision with a car will occur, or a driver's driving mistake due to the invasion of these animals will also be caused, causing a serious accident There is a fear.
In order to prevent such an accident caused by the invasion of animals, various means for preventing the invasion of animals from various animal intrusion prevention fences and drains have been proposed.

Examples of the conventional examples include those described in the following patent documents.
The “vertical drainage structure with small animal intrusion prevention function” described in Patent Document 1 is for preventing small animals from entering the road through the vertical drainage course on the slope of the highway. And a sloping vertical drainage groove formed on the slope between the lower general road and a groove lid installed in the vertical drainage groove.

  A shielding screen that can be rotated only in the longitudinal direction of the vertical drainage groove and downward is suspended from the back surface of the groove lid. The shielding screen has a plurality of plate-like members on the rotating shaft. The shielding screen is restricted from rotating upward by making the length of the plate-like member longer than the depth of the vertical drainage groove.

  The “fence body of an anti-fence fence” described in Patent Document 2 makes it impossible to pass under the fence from the side groove, even when the fence is installed across the side groove, A trap body that does not open on the main line side of a road or a track but opens on the opposite side (private side) is provided at the bottom of the fence body straddling the side groove in the fence for animal protection.

The “animal protection device attached to the U-shaped groove used for drainage lectures” described in Patent Document 3 includes an anti-animal protection plate that swings in the U-shaped groove on the downstream side but does not swing on the upstream side. Is.
The “small animal intrusion prevention device” described in Patent Document 4 prevents small animals from entering the fence through the drainage groove from outside the entry prevention fence and does not clog the drainage groove.

  Similarly to the above invention, this device is also provided with an intrusion prevention plate having a shape whose lower end is curved toward the downstream side of the drainage groove, and the intrusion prevention plate is suspended in the drainage groove. Then, the lower end is grounded to the bottom of the drainage groove and rotates in the downstream direction of the drainage groove, but does not rotate in the upstream direction.

JP 2011-84973 A JP-A-2005-175 JP 2003-219787 A Utility registration No. 3172877

In the above prior art, in order to prevent the invasion of various animals from the drainage groove intersecting the animal intrusion prevention fence, an intrusion prevention member is provided, and this member rotates on the downstream side, but on the upstream side. Is realized by not rotating.
However, when this type of rotation-type intrusion prevention member is provided, there is a problem that dead leaves, dust and the like are caught by the intrusion prevention member and clogged, except for some of them.

In view of this, the present invention has an object to devise a structure in which various animals cannot enter from the drainage groove by means completely different from the above-described conventional rotary intrusion prevention member.
Moreover, the drainage groove is arrange | positioned with the form which changes with the installation aspect of the road facility of a highway or a toll road.
That is, when the road facility is provided on the embankment, when the road facility and the outside of the facility are flat, or when the boundary between the road facility and the outside of the facility is on the cut portion (on the inclined surface) In the present invention, it is an object of the present invention to provide an animal intrusion prevention structure according to all the installation modes of these drain grooves.
The structure and method for preventing invasion of animals according to the present invention are also used for preventing invasion of animals into other animal repellent facilities such as road facilities, railroad facilities, various factories and plant facilities, and also Self-Defense Force facilities. It can be applied.

In order to solve the above-mentioned problems, a first aspect of the present invention is a structure for preventing various animals from entering an animal repellent facility such as a highway, a toll road, a railway facility, or various plants. The intrusion prevention fence is arranged at the drainage ditch crossing the intrusion prevention fence that forms the boundary between the inside and outside of the facility. There is a discharge port connected to the drainage channel outside the facility on the side, and within this drainage channel, a step with an appropriate height is provided between the bottom surface of the drainage channel inside the facility and the bottom surface of the drainage course outside the facility. This is an animal intrusion prevention structure.
Here, in the above “animal intrusion prevention cage”, “枡” means a cage-shaped three-dimensional structure having an inlet portion into which drainage flows and an outlet portion from which drainage is discharged, and its upper end portion. May be opened or closed, and includes both of them (the same applies hereinafter).

  The second aspect of the present invention is a structure for preventing various animals from entering an animal repellent facility such as an expressway, a toll road, a railway facility, or various plants, and the inside and outside of the facility. It consists of an animal intrusion prevention dredge placed in the drainage groove that intersects the intrusion prevention fence that forms the boundary, and this dredge has an inlet part for introducing upstream drainage and an outlet part for discharging drainage on the downstream side. The bottom surface of the trough is lower than the bottom surface of the drainage groove inside and outside the facility, and the difference in height between the bottom surface of the intrusion prevention trough and the bottom surface of the drainage groove inside and outside the facility is increased to form a step. An animal intrusion prevention structure is characterized in that an animal that has entered the cage cannot get over this step.

  The third aspect of the present invention is a structure for preventing various animals from entering an animal repellent facility such as a highway, a toll road, a railroad facility, or various plants, and the inside and outside of the facility. It consists of an animal intrusion prevention dredge placed in the drainage groove that intersects the intrusion prevention fence that forms the boundary, and this dredge has an inlet part for introducing upstream drainage and an outlet part for discharging drainage on the downstream side. Within the drainage channel of the dredger, a step with an appropriate height is provided between the bottom surface of the drainage groove in the facility and the bottom surface of the drainage course outside the facility, and a groove such as a grating is provided at an appropriate height position of the dredger. An animal intrusion prevention structure characterized by providing a lid.

  According to a fourth aspect of the present invention, in the third aspect, the groove lid is disposed at substantially the same height as the bottom surface of one of the drain grooves inside or outside the facility. Animal intrusion prevention structure.

  According to a fifth aspect of the present invention, in the first to fourth aspects of the invention, when the animal intrusion prevention fence is installed at a position below the intrusion prevention fence, the lower part of the intrusion prevention fence and the facility The animal intrusion prevention structure is characterized in that the upper part of the animal intrusion prevention jar located outside is closed.

  A sixth aspect of the present invention is a method for preventing various animals from entering an animal repellent facility such as a highway, a toll road, a railroad facility, or various plants, and the inside and outside of the facility. In the drainage groove that intersects the intrusion prevention fence that forms the boundary, a step with a predetermined height is provided at an appropriate position on the bottom surface of the drainage groove in the vicinity of the intrusion prevention fence so that various animals cannot get over the step. This is an animal intrusion prevention method.

  As described above, the animal intrusion prevention structure and method according to the present invention can be applied not only to road facilities, but also to prevent the invasion of animals into other animal repellent facilities, Hereinafter, for the convenience of explanation, the road facility will be described.

In the first aspect of the present invention, the road is installed above the embankment, and the boundary between the road facility and the outside of the facility is the boundary between the inclined portion of the embankment and the flat area outside the facility. The case where it is located in is assumed.
In other words, it consists of an animal intrusion prevention jar placed in the drainage ditch crossing the intrusion prevention fence that forms the boundary between the inside and outside of the road facility. An appropriate height difference is provided between the bottom surface of the first and second surfaces.

As a result, various animals that enter from the drainage channel outside the facility can enter the animal intrusion prevention cage, but due to the presence of the level difference, the animal can get over the level difference and enter the drainage channel inside the facility. It will not be possible.
In addition, there is no concern about catching dead leaves, dust, etc. by the rotating shielding screen as in the prior art, and the problem of clogging the drainage groove does not occur.

The second aspect of the present invention also exhibits the same effect as the first aspect of the present invention, but the second aspect of the present invention assumes a case where the boundary between the inside and outside of the road facility is on a flat ground. Is.
In other words, it consists of an animal intrusion prevention raft placed in the drainage ditch crossing the intrusion prevention fence that forms the boundary between the inside and outside of the road facility, and the bottom surface of this dredge is lower than the bottom surface of the drainage groove inside and outside the road facility And a step is formed by increasing the difference in height between the bottom surface of the intrusion prevention ridge and the bottom surface of the drainage groove inside and outside the road facility so that animals that have entered the ridge cannot get over the step. It is characterized by that.

In this invention, since the bottom surface of the drainage groove inside the facility and the drainage groove outside the facility are substantially the same plane (of course may be different), it is not possible to provide a step as in the first invention, Because the bottom of the animal intrusion prevention basin is lower than the bottom of the drainage channel inside and outside the road facility, when drainage is stored, animals may cross from the drainage channel outside the facility to the drainage channel inside the facility. It can't be done (aside from animals that can swim).
On the other hand, even when drainage is not stored in the tub, the bottom surface of this tub has been set to be considerably lower than the bottom surface of the drainage channel inside and outside the facility, so it entered (dropped) into the tub. Animals can no longer get from the cage to the drainage in the facility.

The third aspect of the present invention also exhibits the same effect as the first and second aspects of the present invention. However, in this third aspect of the invention, the boundary between the road facility and the outside is a cut portion. The case where it is located on an inclined surface is assumed.
That is, the animal intrusion prevention ridge is provided with a step having an appropriate height between the bottom surface of the drainage groove in the road facility and the bottom surface of the drainage course outside the road facility, and a groove cover such as a grating is provided at an appropriate height position of the ridge. That is, a groove lid having a water flow function is provided.

Thereby, when the road facility is on the upper side of the inclined surface, even if an animal enters the cage from the drainage groove outside the road facility, the animal enters the facility drainage groove due to the presence of the groove cover positioned above the cage. I can't.
In addition, even when the road facility is on the lower side of the inclined surface, even if an animal enters the drainage basin from the drainage channel outside the road facility, the presence of the groove lid located below the drainage channel allows the animal to enter the facility drainage channel. It becomes impossible to invade.

  According to a fourth aspect of the present invention, the height position where the groove cover is installed in the third aspect of the invention is limited, and the effect is the same as that of the third aspect of the invention.

According to a fifth aspect of the present invention, in each of the first to fourth aspects of the invention, when the animal intrusion prevention fence is installed at a position below the intrusion prevention fence, the lower portion of the intrusion prevention fence and The upper part of the animal intrusion prevention jar located outside the road facility is in a closed state.
This eliminates the gap between the intrusion prevention fence and the animal intrusion prevention fence and closes the upper part of the animal intrusion prevention fence located outside the road facility of the intrusion prevention fence so that the animal from this part Can be prevented.

In a sixth aspect of the present invention, the present invention relates to a method for preventing various animals from entering a road facility such as an expressway, and an intrusion prevention fence that forms a boundary between the inside and the outside of the road facility; In the intersecting drainage grooves, a step with a predetermined height is provided at an appropriate position on the bottom surface of the drainage groove near the intrusion prevention fence so that various animals cannot get over the step.
That is, a step with a predetermined height is provided at the drainage groove at the boundary between the inside and outside of the road facility, without using a cage for preventing the invasion of animals as in the first to fifth inventions. It is intended to provide an animal intrusion prevention method that prevents animals from getting over this level difference.

When the road is installed on the embankment portion, the animal intrusion prevention structure of the present invention provided at the boundary between the inclined surface inside the road facility and the flat ground outside the facility is described. A) shows the conventional drainage equipment, The (B) is a longitudinal cross-sectional conceptual explanatory drawing which shows 1st Embodiment which concerns on this invention. The case where the boundary part inside and outside the road facility is on a substantially flat ground is shown, and (A) shows a conventional drainage facility, and (B) shows a longitudinal section conceptual explanatory view showing a second embodiment according to the present invention. It is. The case where the boundary inside and outside the road facility is on the slope of the cut portion is shown, (A) shows a conventional drainage facility, and (B) shows a longitudinal section concept showing a third embodiment according to the present invention. It is explanatory drawing. FIG. 3 shows the same configuration as that shown in FIG. 3, and shows a case where the road facility is provided on the opposite side to FIG. 3, and (A) shows a conventional drainage facility and (B ) Is a longitudinal sectional conceptual diagram showing a third embodiment of the present invention.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram illustrating an animal intrusion prevention structure according to the present invention provided in a boundary portion between an inclined surface inside a road facility and a flat ground outside the facility when the road is installed on a banking portion. (A) shows a conventional drainage facility, and (B) is a longitudinal sectional conceptual explanatory diagram showing a first embodiment according to the present invention.

In the conventional drainage system shown in FIG. 1A, an intrusion prevention fence (hereinafter referred to as “fence”) F is installed at the position of the boundary line K between the road facility inner side I and the road facility outer side O.
A road is installed above the inclined surface of the road facility inside I on the right side of the figure, and drainage such as rainwater passes through the facility drainage groove 40 below the fence F and is disposed outside the road facility O. It is drained into the drainage groove 42 outside the facility. In the figure, the flow direction of drainage is indicated by white arrows (the same applies to the following figures).

The upper end opening of the facility drain 40 is not particularly provided with a lid or the like.
Therefore, various animals can dive under the fence F from the upper end opening of the facility outside drainage groove 42 on the left side of the fence F, enter the facility drainage groove 40 and enter the road facility inside I. .
Or the animal which invaded the inside of the drainage groove 42 outside a facility can also penetrate | invade into the drainage groove 40 in a facility from the drainage groove 42, and can also penetrate | invade the road facility inner side I by this. In the figure, the invasion route of the animal is indicated by a solid arrow (the same applies to the following figures).
In this way, various animals that have entered the road facility I can enter the road and cause various problems.

Therefore, although the first embodiment of the present invention is illustrated in FIG. 1B, there is also a case where the animal intrusion prevention rod 10 (hereinafter simply referred to as “枡” or “intrusion prevention rod” according to this embodiment). ) Has a discharge port 12 for drainage below the fence F provided on the boundary line K inside and outside the road facility, and an inlet 11 that can introduce drainage into the upper part on the upstream side opposite to this. It is formed from concrete made of concrete having a substantially U-shaped cross section.
In the figure, these inlet 11 and outlet 12 are indicated by broken lines, but this part is open.

The animal intrusion prevention cage 10 according to the first embodiment has an open upper end, but the upper end of the cage 10 is closed, except for the inlet port 11 and the outlet port 12, and has a box shape in a closed space. You may form as.
The most important point is that the wall surface 15 provided with the inflow port portion 11 is formed substantially vertically with a predetermined height. In this embodiment, the height h is about 1000 mm.
The lateral width of the drainage channel of the animal intrusion prevention basket 10 is about 300 mm.

The inflow port portion 11 on the upstream side of the animal intrusion prevention basket 10 is connected to the drainage groove 40 in the road facility, and the discharge port portion 12 on the downstream side is connected to the drainage groove 42 outside the road facility.
Accordingly, the wall 15 forms a substantially vertical surface in the drainage flow path (white arrow) of the trough 10, and the bottom surface of the facility drainage groove 40 and the bottom surface of the facility drainage groove 42 are at different height positions. Thus, a step of about 1 m as described above is formed.

  Therefore, even if various animals that have entered from the drainage groove 42 outside the facility can enter the animal intrusion prevention pit 10, they are able to get over the wall 15 because the step formed by the wall 15 is provided by about 1 m. There is no risk of intrusion into the road facility and causing problems.

In this embodiment, several concrete lids 17 are further placed from the end of the animal intrusion prevention cage 10 toward the inflow port 11 from the end of the discharge port 12 to close the opening. Yes.
Of course, since there is no gap between the lid 17 and the lower end of the fence F, various animals cannot enter the facility inside I from the road facility outside O through the gap.

FIG. 2 shows a case where the boundary between the inside and outside of the road facility is on a substantially flat ground, (A) shows a conventional drainage facility, and (B) shows a longitudinal section showing a second embodiment according to the present invention. FIG.
Although FIG. 2 (A) shows a conventional drainage facility, since the facility drainage groove 40 and the facility drainage groove 42 are directly connected in the direction crossing the lower side of the fence F, various animals are The latter can easily enter the former facility drain 40.

Therefore, the second embodiment of the present invention is illustrated in FIG. 2B, but the animal intrusion prevention fence 20 according to this embodiment is located below the fence F provided on the boundary line K inside and outside the road facility. It has a drainage port portion 12 for drainage, and has a rectangular parallelepiped shape made of concrete having a substantially U-shaped cross section having an inlet portion 11 into which drainage can be introduced on the upstream side opposite thereto.
In the figure, these inlet 11 and outlet 12 are indicated by broken lines, but this part is open.

Although the upper end of the animal intrusion prevention basket 20 according to the second embodiment is also open, the box has a closed space except for the inlet part 11 and the outlet part 12 with the upper end of the cage 20 closed. It is good.
The most important point is that the wall surface 15 provided with the inlet portion 11 and the wall surface 16 provided with the discharge port portion 12 are formed substantially vertically with a predetermined height. That is, the bottom surface of the animal intrusion prevention basket 20 is located at a position lower than the bottom surfaces of the drainage grooves 40 and 42 inside and outside the facility.
The lateral width of the drainage channel of the animal intrusion prevention basket 20 is the same as that in the first embodiment.

The inlet 11 on the upstream side of the animal intrusion prevention tub 20 is connected to the drainage groove 40 in the road facility, and the outlet 12 on the downstream side is connected to the drainage groove 42 outside the road facility.
Accordingly, the wall surfaces 15 and 16 form a substantially vertical surface in the drainage flow path (white arrow) of the trough 20, and the bottom surface of the facility drainage groove 40 and the bottom surface of the facility drainage groove 42 are at the same height position. However, since the bottom surface of the animal intrusion prevention rod 20 in the meantime is formed by a predetermined height lower than the bottom surfaces of the drainage grooves 40, 42, when no water is stored in the rod 20, Thus, animals that have entered the inside 20 cannot rise into the drainage 40 in the road facility.
Of course, when the water is stored, the animal that can swim can enter the in-facility drain 40, but this can be prevented by the following partition member.

That is, in this embodiment, the partition member 14 is further provided at substantially the same height as the bottom surfaces of the in-facility drainage groove 40 and the out-of-facility drainage groove 42.
Although not clearly shown in the drawing, the upper surface of the partition member 14 is formed by forming many needle-like protrusions.
Needless to say, the partition member 14 is made of a metal or a synthetic resin having a form in which a fluid can easily pass. That is, a large number of holes such as an insulator or a lattice are formed.

Thereby, even if the animal which is going to enter the animal intrusion prevention rod 20 according to the second embodiment has water stored therein and the animal can swim, the partition member 14 It is impossible to walk across the upper surface and not enter the road facility.
Of course, it is also possible to carry out without providing this partition member.

In the second embodiment, since the upper end of the animal intrusion prevention rod 20 is open, a plurality of lid portions 17 are placed in the same manner as in the first embodiment.
However, since the partition member 14 is provided, there is no problem if one lid 17 is provided under the lowest fence F.

FIG. 3 shows the case where the boundary inside and outside the road facility is on the inclined surface of the cut portion, (A) shows a conventional drainage facility, and (B) shows a third embodiment according to the present invention. It is a longitudinal cross-section conceptual explanatory drawing shown.
In the conventional drainage system shown in FIG. 3 (A), a fence F is installed at the boundary line K between the road facility inner side I and the road facility outer side O. A road is installed at the bottom of the surface.
Drainage such as rainwater passes from below the facility drainage channel 42 below the fence F and drains into the facility drainage channel 40 disposed on the road facility inner side I (open arrow).

The upper end of the in-facility drain groove 40 is not provided with a lid or the like.
Various animals can pass under the fence F from the upper end opening of the facility outside drainage groove 42 on the right side of the fence F and enter the facility drainage groove 40 and enter the road facility inside I (solid line). Arrow).
In this way, various animals that have entered the road facility I can enter the road and cause various problems.

Therefore, the third embodiment of the present invention is illustrated in FIG. 3B, and the animal intrusion prevention fence 30 according to this embodiment is adjacent to the fence F provided on the boundary line K inside and outside the road facility. It is installed in the road facility inside I. Of course, it can also be installed directly under the fence F or outside the road facility O.
This animal intrusion prevention gutter 30 has a drain outlet port 12 below the downstream side wall surface, and has an inflow port portion 11 into which the drainage can be introduced at the upper upstream side opposite to the drain side outlet U. It is formed from a concrete shape with a letter shape.
In the figure, these inlet 11 and outlet 12 are indicated by broken lines, but this part is open.

Although the upper end of the animal intrusion prevention basket 30 according to the third embodiment is open, the box has a closed space except for the inlet part 11 and the outlet part 12 with the upper end of the cage 30 closed. It is good.
An important point is that the height of the bottom surface of the drainage groove 42 outside the facility is different from the height position of the bottom surface of the distribution channel 40 in the facility, that is, in this embodiment, the bottom surface of the drainage groove 40 in the facility is different. The height of the downstream wall surface 16 and the upstream wall surface 15 of the animal intrusion prevention rod 30 is appropriately increased so as to be at a low position.
The lateral width of the drainage channel of the animal intrusion prevention basket 30 is the same as that in the above embodiment.

The inlet 11 on the upstream side of the animal intrusion prevention tub 30 is connected to the drainage groove 42 outside the road facility, and the discharge port 12 on the downstream side is connected to the drainage groove 40 in the road facility.
Therefore, the wall 15 forms a substantially vertical surface in the drainage flow path (white arrow) of the trough 30, and the bottom surface of the facility drainage groove 40 and the bottom surface of the facility drainage groove 42 are at different height positions. The wall surface 15 is formed as a step.

  In the third embodiment, the metal grating 34 is disposed at an appropriate intermediate height position of the animal intrusion prevention rod 30. The grating 34 has a lattice shape and can appropriately distribute the drainage. The grating 34 becomes a groove lid, and various animals cannot pass through the groove lid.

In the third embodiment, the grating 34 as the groove cover is arranged on the same plane as the bottom surface of the facility drainage groove 42.
Accordingly, various animals that have entered the outside drainage groove 42 can enter the inside of the animal intrusion prevention basin 30 according to the present invention from the inflow port 11, but due to the presence of the groove lid, It cannot enter, and therefore cannot enter the drain 40 in the facility.

In this embodiment, the lid portion 17 is installed so that various animals cannot enter between the fence F and the drainage groove 42 outside the facility.
In the figure, a lid is installed at the upper end opening of the ridge 30, but there is no problem even if this is not provided. This is because the bag 30 is provided on the road facility inner side I.

FIG. 4 is the same configuration as that shown in FIG. 3 and shows a case where the road facility is provided on the opposite side of FIG. 3, and FIG. FIG. 5B is a longitudinal cross-sectional conceptual diagram showing the equipment according to the third embodiment of the present invention.
This embodiment has the same configuration as that of the third embodiment described in FIG. 3 above, but is a case where the road facility is located above the cut sloped surface.

Therefore, the animal enters from the lower part of the inclined surface.
That is, various animals enter from the drainage groove 42 outside the road facility, and enter the cage 30 through the discharge port 12 of the animal entry prevention cage 30, but the grating as a groove cover installed above the cage 30 Due to the presence of 34, it is not possible to climb further upward, and therefore it is impossible to enter the in-facility drain groove 40 through the inflow port portion 11 of the rod 30.

Moreover, the lid | cover part 17 is installed between the fences F of the in-facility drain grooves 40 similarly to the case of the said FIG. 3, The animal cannot enter from the clearance gap between both.
As a matter of course, the grating 34 is fixed in the collar 30 by fixing means such as a screw so that it cannot be opened upward.
In the case of FIG. 4, the grating 34 is unnecessary by increasing the height of the wall surface 15 of the inflow port portion 11 of the rod 30, that is, by increasing the step.
That is, the technical meaning of the step of the ridge 30 and the step of the ridge 10 of the first embodiment are the same.

As mentioned above, although three embodiment was described about the animal intrusion prevention structure, in this invention, the technical idea of this invasion prevention structure can be spread as an intrusion prevention method.
That is, without using the above-described intrusion prevention rod in particular, the basic idea of the intrusion prevention rod can be adopted and realized as an animal intrusion prevention method as follows.

That is, the animal intrusion prevention method provides a predetermined height step at an appropriate position on the bottom surface of the drainage groove near the intrusion prevention fence in the drainage groove that intersects with the intrusion prevention fence that forms the boundary between the inside and outside of the road facility. This step can be realized by preventing various animals from getting over the step.
It is highly desirable to place a lid on the upper end opening of the drainage groove, and this step may be located directly under the intrusion prevention fence (fence), inside the road facility, or outside the road facility.
Of course, it is also free to use the drainage groove in a form in which the upper end opening of the drainage groove is closed.

By adopting this method, the present invention can be carried out by changing the form of the existing drainage groove without using a separate structure called the animal intrusion prevention rod according to the above embodiment.
However, it is easy to change the shape of the drainage channel at the time of construction of road equipment. However, in reality, when the present invention is applied to existing drainage equipment, the animal intrusion prevention rod is appropriately positioned. It will be easy to replace and install.
In any case, the animal intrusion prevention rod is a part of the drainage ditch and is also a drainage ditch itself. Is common to animal intrusion prevention structures.

As mentioned above, although embodiment of this invention was described, in this invention, various design changes can be performed as follows.
First of all, the present invention can be applied as it is as a structure and method for preventing invasion of animals into an animal repellent facility such as a railroad facility and various plants with the same configuration as described above, as well as road facilities. .

Although the cross-sectional shape of the ridge has been described as a substantially U-shape in the above embodiment, this cross-sectional shape may be a U-shape with an upper opening, or a trapezoidal shape with a wide cross-section or a trapezoidal shape. It may be, and what is necessary is just a cross-sectional shape which can distribute waste_water | drain.
Further, the upper end of the dredger is not open, and the space other than the inflow port and the drain port can be implemented as a closed space.

In addition, the material such as the lid and the lid can be made of various materials such as synthetic resin and metal as well as concrete.
Similarly, the size can be set freely and the height of the step can be designed freely. However, considering the type of animal that invades, the step can be set to a height at which the animal cannot get over. is important.
The lid part placed on the upper part of the gutter or the drainage groove may be provided only in a necessary place, but both of them can adopt a form in which the upper opening is closed.

The number and form of the needle-like projections provided on the upper surface of the partition member used in the second embodiment can also be freely designed, and in short, if it is of a form that various animals cannot walk across, It can be anything.
Of course, this partition member can be installed on the bottom surface of the bag of the second embodiment, or can be implemented without providing it.

The cage according to the third embodiment has a substantially box shape, but is characterized by having a groove lid (grating) in the middle part. This is because an animal invades from the upstream side of the drainage channel. In an installation situation where animals invade from the downstream side to the upstream side, the height of the wall surface located on the drainage inlet side is appropriately increased to allow the animal to get over If a step that cannot be formed is formed, the groove lid becomes unnecessary.
In this case, the technical idea is the same as that of the first embodiment.

  On the other hand, in the animal intrusion prevention method according to the present invention, there is no need to have a step in the drainage channel of the drainage groove regardless of the form of the various troughs according to the embodiment. It can be said that the technical idea was sublimated.

  As described above, in the present invention, various animal intrusion prevention fences are installed in the drainage grooves that intersect the lower part of the fence at the boundary between the inside and outside of the road facility, thereby allowing various animals to enter the road facility. Provide an animal intrusion prevention method that can prevent and provide a step in the drainage channel near the fence of the drainage channel, prevent various animals from entering the road facility, and thereby roads such as highways The above accidents can be prevented in advance, and the effect on the safety and safety on the road is exhibited.

10, 20, 30 Animal intrusion prevention rod 11 Inflow port portion 12 Discharge port portion 14 Partition member 15, 16 Wall surface 17 Lid portion 34 Grating (groove lid)
40 Drainage channel inside facility 42 Drainage channel outside facility F Fence prevention fence
K boundary line I road facility inside O road facility outside

Claims (6)

A structure for preventing various animals from entering an animal repellent facility such as an expressway, a toll road, a railway facility or various plants,
It consists of an animal intrusion prevention fence (10) placed in the drainage ditch crossing the intrusion prevention fence that forms the boundary between the inside and outside of the facility,
This trough (10) has an inlet (11) connected to the facility drain (40) on the upstream side and an outlet (12) connected to the facility drain (42) on the downstream,
Intrusion of animals characterized in that an appropriate height step is provided between the bottom surface of the facility drainage channel (40) and the bottom surface of the facility drainage course (42) in the drainage channel of the tub (10). Prevention structure. A structure for preventing various animals from entering an animal repellent facility such as an expressway, a toll road, a railway facility or various plants,
It consists of an animal intrusion prevention fence (20) placed in the drainage ditch crossing the intrusion prevention fence that forms the boundary between the inside and outside of the facility,
This gutter (20) has an inlet part (11) for introducing upstream drainage and an outlet part (12) for discharging downstream drainage,
The bottom surface of the dredge (20) is lower than the bottom surface of the drainage grooves (40, 42) inside and outside the facility, and the bottom surface of the intrusion prevention rod (20) and the bottom surface of the drainage grooves (40, 42) inside and outside the facility An animal intrusion prevention structure characterized in that a difference in height is formed to form a step so that an animal that has entered the cage (20) cannot get over the step. A structure for preventing various animals from entering an animal repellent facility such as an expressway, a toll road, a railway facility or various plants,
It consists of an animal intrusion prevention fence (30) placed in the drainage ditch crossing the intrusion prevention fence that forms the boundary between the inside and outside of the facility,
This gutter (30) has an inlet part (11) for introducing upstream drainage and an outlet part (12) for discharging downstream drainage,
In the drainage flow path of the trough (30), a step of an appropriate height is provided between the bottom surface of the drainage groove (40) in the facility and the bottom surface of the drainage course outside the facility (42), and the trough (30) A structure for preventing the invasion of animals, wherein a groove cover such as a grating (34) is provided at an appropriate height position.   The animal intrusion prevention structure according to claim 3, wherein the groove cover is disposed at substantially the same height as the bottom surface of one of the drain grooves (40, 42) inside or outside the facility.   When the animal intrusion prevention fence (10, 20, 30) is installed at a position below the intrusion prevention fence, the animal intrusion prevention fence (10, 20, 20) located at the lower part of the intrusion prevention fence and outside the facility. The animal intrusion prevention structure according to any one of claims 1 to 4, wherein the upper part of 30) is closed. A method for preventing various animals from entering an animal repellent facility such as an expressway, a toll road, a railway facility, or various plants,
In the drainage ditch crossing the intrusion prevention fence that forms the boundary between the inside and outside of the facility,
A step with a predetermined height is provided at an appropriate position on the bottom surface of the drainage groove near the intrusion prevention fence,
An animal intrusion prevention method characterized by preventing various animals from overcoming the step.