JP2019090179A - Traversing drainage tool for afforestation strip road - Google Patents

Abstract

To provide a traversing drainage tool for an afforestation strip road which is formed so that a water beating part of drained flowing water comes at natural ground further on the lower side than banking.SOLUTION: A traversing drainage tool for an afforestation strip road which is provided on an unpaved afforestation strip road and which dams and discharges flowing water includes: a long support square bar; and a first elastic material and a second elastic material mounted on the support square bar. The first elastic material is formed in a belt-like manner and mounted on the support square bar with an upper end protruding from an upper surface of the support square bar. The second elastic material is formed in a belt-like manner and, out of both end parts, one end part is fixed on the upper surface of the support square bar, and the other end part is not fixed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an afforestation work road crossing ditch for preventing erosion by running water of afforestation work road.

  Conventionally, on unpaved roads such as forest roads and work roads (hereinafter collectively referred to as "work roads for afforestation"), crossing gutters are used to prevent erosion of the road by running soil such as rain water Is provided. As a conventional technology of this crossing ditch, for example, in patent document 1, "generally, forest roads and work roads leading to the inside and the outside of the forest are constructed for the purpose of transportation of forest products and traffic necessary for forestry management. Since this forest road or work road is generally unpaved, and drainage from the forest road or work road is largely related to maintenance of the forest road and work road, rainwater on the road surface, water flowing out of side slopes, or roadside It is necessary to quickly eliminate stagnant water, etc., and to prevent water from entering the roadbed, for which drainage gutters along the roadside are most commonly used as drainage methods. According to the flow of collected water for a long section will increase the flow rate and overflow and cause scouring of the road surface, so select a suitable place and cross the weir to cross the road from the mountain side to the valley side Need to be provided However, according to gutters and crossing gutters, the construction cost is huge, and even if there is a gutter, there is a problem such as flooding from gutters when there is a lot of rainfall. And the drainage tool is used to discharge running water on the road surface to the valley side, etc. ”(see paragraphs“ 0002 ”to“ 0004 ”).

  If, for example, concrete U-shaped ditch is used as the above-mentioned "crossing weir", wood waste, dead leaves, earth and sand etc. will be deposited in the ditch and the effect of drainage will not be exhibited. Then, there is a problem that the U-shaped groove made of concrete is expensive. Therefore, as described above, instead of the "side groove" and the "crossing weir", the "drainage tool" is used and the "drainage tool" As materials, elastic materials such as wood (especially thinning materials) and rubber are often used, and as drainage devices using elastic materials such as rubber, for example, as shown in the following Patent Documents 1 to 5: Various inventions and inventions have been proposed.

  Patent Document 1 mentioned above “consists of a square member embedded from one side to the other side of the roadside and a flexible member fixed to the square member, and the flexible member has a double-folded structure with both side edges The draining device for road surface is characterized in that the lower end formed by polymerization is fixed along the longitudinal direction of the square bar, and the upper end which becomes an inverted U-shape protrudes on the road surface (see "claim 1"). Patent Document 2 describes an elongated reinforcement portion embedded in the ground in a direction crossing the road and a length for raising from this reinforcement portion and projecting to the ground, with the upper surface not protruding from the ground. A road surface drainage zone characterized in that it is formed of a plate-like portion made of an elastic material of a scale (see "claim 1") is described. Attach the membrane (3) in an arc shape, sandwich the two sides with the fixed sub-base (4), and A forest road crossing drainage induction membrane which is tightened in 5) (see “claim 1”) is described, and in patent document 4 “long plate-like elastic part and one embedded in a direction crossing the road” A long support portion for supporting the elastic member to project on a road surface, and a long support reinforcement portion provided between the support portion and the support base of the road, the support reinforcement A road surface drainage band characterized by movably attached to the bottom surface of the support portion (see "claim 1") is described. A band consisting of an elastic plate for guiding the two, a plurality of grounding pieces that can be bent or curved with respect to the band below the band and grounded to the installation surface, and fixing means for fixing the ground pieces It is a self-supporting water channel which is equipped with a strap section standing and fixed by a plurality of fixed grounding strips. Therefore, at least any two or more of the ground contact pieces are characterized in that they are alternately bent or curvedly fixed to one band surface side and the other band surface side of both band surfaces. (See "claim 1") is described.

True No. 3022672 Japanese Utility Model Publication No. 07-043247 Unexamined-Japanese-Patent No. 2006-112208 Patent No. 4187781 Patent No. 4793695 gazette

  For example, in Patent Document 1, the "water drainage device for road surface" is formed by fixing the "flexible member 2" having the same length as the "corner 1" to the "corner 1", and the "corner 1" Embedded and “Can direct and discharge rainwater flowing from the mountain side to the valley side G with the flexible member 2 protruding on the road surface R” (see paragraph “0023”, FIG. 3). It is done. Here, since it is described that “the square block 1 is embedded from one side to the other side of the roadside m, m in the work path M” (paragraph “0022”, see FIG. 3), “flexibility” Both ends of the member 2 are considered to be formed so as to be located on both sides of the "road m, m" of the "working path M", that is, both road ends of the "working path M" (FIG. 1, FIG. 3) Etc.). In addition, in FIG. 3, in “valley side G” of “working path M”, a ground is often cut off and a direct embankment is directly formed without providing a slope protection construction on the ground. In such a case, the falling point (hereinafter referred to as the "water tapping portion") of the flowing water that is "guided to the valley side G by the flexible member 2 and discharged" (hereinafter referred to as "water tapping portion") becomes a part of the embankment slope. Note that "flowing water" includes "rainwater on road surface, water flowing out from a side slope, or spring water beside a road" (see paragraph "0002") described in Patent Document 1. The same applies below. In general, since the ground strength of the embankment is considerably weaker than that of the ground, if the discharge of running water is repeated many times in the same "water hitch", the "water hitch" gradually erodes In the worst case, there is a problem that the embankment slope collapses. And this problem is in common also in the invention given in patent documents 2-6.

  Both ends of the "plate-like portion 4 made of an elastic material" of Patent Document 2 are formed so as to be located at both road ends of "Road 2" (see FIG. 1, FIG. 3, FIG. 4, etc.) Both ends of the “elastic membrane (3)” are formed so as to be located at both road ends of “forest path” (see FIG. 1 etc.), and both ends of “elastic part 4” in patent document 4 Both ends of the “band portion 1” of Patent Document 5 are located at both road ends of the “unpaved road surface” (see FIGS. 2 and 5 etc.). It is formed (see FIG. 7), and the invention described in any document does not provide the side groove at the road end of the road, and the rain water is discharged to the water strike portion of the slope of the embankment. It is inferred that what is assumed.

  For this reason, in the present invention, the valley side of the afforestation work path is formed so that the water tapping portion of the drained water to be discharged will be a lower ground than the embankment in the configuration where the embankment is directly formed on the underground. The purpose is to provide an afforestation work road crossing ditch.

  Further, in the present invention, in the configuration in which the valley side of the afforestation work road is formed on the ground by the embankment via slope protection work, the water strike portion of the discharged water is the slope protection below the embankment The purpose is to provide an afforestation work road crossing ditch configured to be a work.

  Another object of the present invention is to provide an afforestation work road crossing ditch which is inexpensive and easy to install.

  Another object of the present invention is to provide a forest work channel crossing ditch capable of reducing management costs.

  In order to achieve the above object, the invention according to claim 1 is a construction road crossing ditch for afforestation which is provided on an unpaved work path for afforestation and which blocks and discharges running water, and which is long-length support And a first elastic member and a second elastic member attached to the supporting square member, wherein the first elastic member is formed in a band shape, and an upper end thereof protrudes from an upper surface of the supporting square member to form the supporting square member. The second elastic member is formed in a band shape, and one of the two ends is fixed to the upper surface of the support square, and the other end is not fixed. .

  The invention according to claim 2 is the work road crossing groove for afforestation according to claim 1, wherein the unpaved work road for afforestation is laid between a mountain side and a valley side, and the valley The side is a construction in which the embankment is formed on the upper side of the ground, and the second elastic member is formed such that the other end not fixed is able to reach the ground. It is characterized by being characterized.

  The invention according to claim 3 is the work road crossing ditch for afforestation according to claim 1, wherein the unpaved work road for afforestation is laid between a mountain side and a valley side, and the valley The side is a construction in which the embankment is formed on the upper side of the ground through the slope protection work, and the second elastic member can reach the slope protection work at the other end which is not fixed. It is characterized in that it is formed in length.

  The invention according to claim 4 is the work road crossing groove for afforestation according to any one of claims 1 to 3, wherein the support square members are disposed opposite to each other. And a second square bar, wherein the first square bar is formed by connecting a plurality of first divided square bars, and the second square bar is connected with a plurality of second divided square bars. It is characterized in that one end of the second elastic member is fixed to the upper surface of the first divided square and the second divided square.

  According to the work road crossing ditch for afforestation of the present invention, when installed on the work road for afforestation, the water tapping portion is formed in the ground or slope protection work below the embankment, so the discharged water is embanked. There is a remarkable effect that there is no risk of eroding the

  In addition, according to the work road crossing groove for afforestation of the present invention, since the work crossing groove for afforestation is formed using thinning material and waste material of rubber belt, construction is also inexpensive and easy, and management of maintenance etc. There is a remarkable effect that costs can be reduced.

  In addition, according to the work road crossing groove for afforestation of the present invention, since it is not necessary to clean the groove as in the prior art, the remarkable effect of reducing the management cost can be achieved.

It is a perspective view of the work path crossing ditch for afforestation of a 1st embodiment of the present invention. It is a front view of FIG. It is a rear view of FIG. It is a left view of FIG. It is a right view of FIG. It is a top view of FIG. It is a bottom view of FIG. It is sectional drawing explaining the structure of the working path for afforestation. It is sectional drawing explaining the use condition of 1st Embodiment of this invention. It is a perspective view explaining the use condition of 1st Embodiment of this invention. It is a perspective view of the work channel crossing ditch for afforestation of a 2nd embodiment of the present invention. It is a top view of FIG. It is a perspective view of a work path crossing ditch for afforestation of a 3rd embodiment of the present invention. It is a top view of FIG. It is a figure explaining the modification of the shape of the elastic material of this invention. It is a figure explaining the modification of the width | variety of the elastic material of this invention.

  Hereinafter, the present invention will be more specifically described using a preferred embodiment. However, the following embodiments are merely examples embodying the present invention, and the present invention is not limited thereto. For convenience of explanation, the directions of upper, lower, left and right shown in the present specification correspond to the directions of upper, lower, left and right of arrows shown in the figure.

First Embodiment
<Overall configuration>
1 shows a perspective view of the work road crossing groove for afforestation according to the first embodiment of the present invention, FIG. 2 shows a front view of FIG. 1, FIG. 3 shows a rear view of FIG. 1 and FIG. 5 shows a right side view of FIG. 1 in FIG. 5, FIG. 6 shows a plan view of FIG. 1 in FIG. 6, and FIG. 7 shows a bottom view of FIG.
As illustrated, the work road crossing groove 1 for afforestation according to the first embodiment of the present invention includes a long support square 2 and a first elastic member 3 and a second elastic 4 attached to the support square 2. The first elastic member 3 is formed in a band shape, and is attached to the support square 2 so that the upper end thereof protrudes from the upper surface of the support square 2. The second elastic material 4 is formed in a band shape. Of the left and right ends, the right end is fixedly attached to the upper surface of the support square 2, and the left end is not fixed. The fixed right end of the second elastic member 4 is referred to as a fixed end 4a, and the left end not fixed is referred to as a free end 4b.

<Support square 2>
In the first embodiment, the support square 2 is composed of a long rectangular prism-shaped first square 2a and a second square 2b. The first square bars 2a and the second square bars 2b are preferably formed in the same shape. The first square bar 2a is disposed on the front side, the second square bar 2b is disposed on the rear side, and the first elastic member 3 is sandwiched from the front and back by the first square bar 2a and the second square bar 2b. In the state, the plurality of screwing means 5 are penetrated in the front-rear direction and fixed by screwing the first square bar 2a, the second square bar 2b and the first elastic member 3.

<Screw attachment means 5>
The screwing means 5 is composed of a bolt and a nut, and in the figure, the bolt is screwed through the first square bar 2a, the first elastic member 3 and the second square bar 2b from the rear side. A nut is screwed from the front side to the inserted bolt, and the first square bar 2a, the first elastic member 3 and the second square bar 2b are fixed. A plurality of screwing means 5 are screwed at predetermined intervals in the longitudinal direction of the first square bar 2a, the first elastic member 3 and the second square bar 2b. The bolt may be screwed in from the front side, and the nut may be screwed in from the rear side.

<Fixing means 6>
The fixing means 6 is fixed by penetrating the first square bar 2a or the second square bar 2b in the vertical direction between screw shafts (bolt axes in the drawing) of the plurality of screwing means 5. For example, an anchor pin is used as the fixing means 6 as illustrated. The anchor pin includes a head locking to the upper surface of each of the first square bar 2a and the second square bar 2b, and a leg bent from the head and extending downward, and the tip of the leg is sharpened It is formed. The anchor pin has a length such that part of the leg portion protrudes from the lower surface of the first square bar 2a and the second square bar 2b when driven into the first square bar 2a and the second square bar 2b. is there.

<First Square Bar 2a and Second Square Bar 2b>
The supporting square bar 2 composed of the first square bar 2a and the second square bar 2b is a predetermined one for the afforestation work road so as to obliquely cross the unpaved afforestation work road from the mountain side to the valley side. Buried at an angle (details will be described later). The length L2 of the support square 2 is formed such that both ends of the support square 2 can be located at both ends of the afforestation work road. In the present embodiment, for convenience of explanation, the length L2a of the first square bar 2a and the length L2b of the second square bar 2b are also described as being equal to the length L2 of the support square bar 2.

<First elastic member 3>
The first elastic member 3 is formed in a strip shape having a length L 3, a width W 3, and a thickness t 3, and the upper end portion protrudes from the afforestation work road when buried together with the supporting square 2 on the afforestation work road Thus, a strip-shaped protruding band 3 a protruding from the upper surface of the support square 2 is provided along the longitudinal direction of the support square 2 and attached to the support square 2. The width of the protruding band 3a is indicated by W3a. The protruding band portion 3 a holds the running water and guides it to the second elastic member 4 to collect water. The lower end of the first elastic member 3 may be at the same position as the lower ends of the first square bar 2a and the second square bar 2b as illustrated, but the screw shaft (that is, the axis of the bolt) of the screwing means 5 is inserted It should be below the position where it is The length L3 of the first elastic member 3 is preferably formed to be equal to the length L2 of the support square 2 as illustrated, but the length L3 of the first elastic member 3 is It may be slightly longer than the length L2 of the support square 2.

<Width of Second Elastic Material 4>
In the first embodiment, the width W4 of the second elastic member 4 is substantially equal to the sum of the width W2a of the first square 2a, the thickness t3 of the first elastic 3 and the width W2b of the second square 2b. It is set equally (see especially FIG. 4). When the work road crossing groove 1 for afforestation is installed and used on the work path for afforestation, the flowing water collected and collected by the first elastic member 3 is a free end along the second elastic material 4 In order to reduce leakage as much as possible before being discharged from the portion 4b to the water tapping portion of the ground, the width W4 of the second elastic member 4 should preferably be formed wide.

<Fixing means 7>
The fixed end 4a of the second elastic member 4 is fixed and attached by the fixing means 7 at a predetermined position on the upper surface of the first square bar 2a and the second square bar 2b. The fixed end 4a is provided with a notch 4c, so that the notch 4c sandwiches the projecting band 3a of the first elastic member 3, and the fixed end 4a is made of the first square 2a and the second square It is attached to the top of 2b. For example, a screw washer as illustrated is used as the fixing means 7. The screw washer has an integrated washer and nut so that the anchor bolt can be screwed on. Since the washer does not protrude from the upper surface of the second elastic member 4, it is possible to prevent damage to the tire when the vehicle travels. Further, the anchor bolt is penetrated to the right side position than the screwing means 5 at the left end. The number and the mounting position of the fixing means 7 can be appropriately changed according to the length (that is, the weight) of the second elastic member 4 attached to the first square 2a and the second square 2b. For example, when the length of the second elastic member 4 is increased and the weight is increased, the fixed end 4a is moved to the right of the first square 2a and the second square 2b to increase the number of fixing means 7 You may make it the structure attached.

<Length of Second Elastic Material 4>
In the present invention, unlike the prior art, the belt-shaped second elastic member 4 is provided on the support square 2, and the length L4 of the second elastic member 4 is the configuration of the valley side of the afforestation work path It is decided according to. Generally, the afforestation work road is a method of cutting the soil on the slope of the mountain and stacking the cut soil on the slope of the mountain below to form a fill, and this embankment Is laid on top of A cut slope is formed on the mountain side, and an embankment slope is formed on the valley side. At this time, there are a configuration in which the embankment is directly formed on the ground, and a configuration in which the embankment is formed through slope protection work such as a vegetation work or a construction work formed on at least a part of the ground. Slope protection works are provided for environmental protection of the embankment and erosion prevention, etc. Slope vegetation works are constructed by growing plants on slopes, and structure works are structures such as concrete篭, building walls etc.).

[In the case of a configuration in which the valley side is directly embanked on the upper side of the earth's body]
The afforestation work road M, in particular, in laying the work road, it is difficult to input huge construction costs for installing a slope protection work, as shown in FIG. 8 (a). In the Vs configuration, it is considered that the embankment F is formed directly on the upper side of the ground G without the slope protection work being installed. However, in general, the embankment F is known to be weaker in ground strength than the ground G and susceptible to erosion. When the water tapping portion, that is, the drop point of the flowing water discharged from the afforestation work road crossing ditch is directly on the filling F, the filling F may be eroded by the flowing water. Therefore, the inventor of the present invention invented the afforestation work road crossing ditch configured so that the water tapping portion does not become a filling soil.
In the first embodiment, when the work road crossing groove 1 for afforestation is embedded in the unpaved work path M for afforestation, the free end 4 b of the second elastic member 4 is lower than the filling F on the valley side Vs. The length L4 of the second elastic member 4 is formed so as to reach the ground G of the In other words, a mountain where the flowing water blocked and induced by the first elastic member 3 is collected and discharged along the second elastic member 4 and the discharged water is formed below the embankment F. Since it can reach G, the water tapping portion WP is formed on the slope S3 of the ground G, and there is no risk that the embankment F will be eroded by running water. The length L4 of the second elastic member 4 is appropriately adjusted in consideration of the height of the filling F, the length of the filling slope S2 determined by the gradient, and the like.

[In the case that the valley side is the configuration where the embankment is formed on the upper side of the earth via slope protection work]
As described above, since the embankment has lower ground strength than the ground and is susceptible to erosion, a slope protection work SP is partially formed on the ground G as shown in FIG. 8 (b). An embankment F may be formed on the slope protection work SP. The slope protection work SP is formed of a structure work (retaining wall, futon fence, etc.) and a vegetation work as described above, and therefore has a stronger ground strength than the embankment F. When the valley side Vs has such a configuration, a water tapping portion (a drop point of flowing water discharged from the afforestation work path crossing groove) WP may be formed on the slope protection work SP. That is, the length L4 of the second elastic member 4 of the afforestation work road crossing groove 1 may not be so long as the free end 4b reaches the ground G of the valley side Vs, and at least the free end 4b is It may be formed to a length that reaches the slope protector SP. In addition, since the ground is not formed to the desired strength until the plants grow to a certain size after the construction, the work road crossing ditch 1 for afforestation is constructed at the same time as the construction of the vegetation. In the case of installation, preferably, the length L4 of the second elastic member 4 is formed such that the free end 4b can reach the ground G of the valley side Vs.

<Material>
In the present embodiment, since thinnings are used for the first square bar 2a and the second square bar 2b, the first square bar 2a and the second square bar are inexpensive by using square bars instead of logs. Stability is improved when 2b is buried in the afforestation work road. Further, the fixing means 6 is penetrated in the vertical direction of the first square bar 2a and the second square bar 2b so that the lower part of the fixing means 6 protrudes from the lower end surface of the first square bar 2a and the second square bar 2b. Because it is fixed, the stability at the time of burial is further improved. Since waste materials of rubber belts are used for the first elastic member 3 and the second elastic member 4, the manufacturing cost can be reduced.

<Usage condition>
Next, the usage condition of the afforestation work road crossing ditch 1 of the present embodiment will be described. FIG. 9 is a cross-sectional view for explaining the use condition of the afforestation work passage crossing groove 1, and FIG. 10 is a perspective view for explaining the use condition of the afforestation work passage crossing groove 1. FIG. 9A and FIG. 10 show the above-mentioned “the case where the valley side has a configuration in which the filling is directly formed on the upper side of the ground”. FIG. 9 (b) shows the above-mentioned “the case where the valley side has a configuration in which the embankment is formed on the upper side of the ground through the slope protection work”. As shown in the figure, a part of the slope of the hill G on the valley side Vs is cut off to form an embankment F on the hill G slope, and a work path M for afforestation is laid on the hill G and the embankment F ing. A cutting slope S1 of the mountain G is formed on the mountain side Ms of the afforestation work path M. When the afforestation work path M is provided with a cross slope, the afforestation work path cross groove 1 may be installed in accordance with the cross slope.

  Hereinafter, “the case where the valley side has a configuration in which the embankment is directly formed on the upper side of the ground” will be described with reference to FIGS. 9A and 10. The afforestation work road crossing ditch 1 is buried so as to cross the unpaved afforestation work path M obliquely from the mountain side Ms to the valley side Vs in order to collect the flowing water and discharge it to the valley side Vs. Both ends of the support square 2 constituting the afforestation work path crossing groove 1 are buried so as to be located at both ends of the unpaved afforestation work path M. The same applies to the first square 2a, the second square 2b, and the first elastic member 3. The supporting block 2 is buried in the ground G or the underfill F below the afforestation work path M so that the upper surface thereof coincides with the road surface of the afforestation work path M, and the first elastic member 3 is a projecting band 3a. Are buried in the ground of the ground G or embankment F formed immediately below the afforestation work path M so as to project above the road surface of the afforestation work path M. Similarly, the screwing means 5 and the fixing means 6 are also buried in the ground of the ground G or the fill F immediately below the afforestation work path M.

  The second elastic member 4 is disposed along the earth slope S2 of the embankment F, and the fixed end 4a of the second elastic member 4 is a road end on the left side (valley side Vs) of the afforestation work road M And the free end 4b of the second elastic member 4 is lower than the boundary point between the embankment F and the ground G, that is, lower than the boundary point between the earth slope S2 and the earth slope S3. It is configured to be formed. For this reason, as shown in FIG. 10, the running water FW such as rain water flowing from the upstream of the afforestation work road M or from the cut slope S1 is blocked by the protruding band portion 3a of the first elastic body 3 and the valley It is guided to the side Vs and collected, and flows along the second elastic body 4, and falls to the water tapping portion WP of the ground G below the embankment F and is discharged. That is, the water tapping portion WP is formed not on the embankment F but on the ground G below the embankment F. As a result, the problem of “the rainwater is discharged to the embankment and the embankment is eroded” is solved in the prior art, so the possibility of the embankment F collapse is eliminated. Further, since most of the flowing water FW is guided along the second elastic member 4 to the water tapping portion WP of the ground G, even if the flowing water FW overflows in the middle of the induction and is discharged, the amount is small, There is no risk of erosion even if it falls on the earth slope slope S2. And, since thinning materials are used for the first square 2a and the second square 2b, and scraps of rubber belts are used for the first elastic material 3 and the second elastic material 4, it is very cheap for afforestation The work channel crossing groove 1 can be manufactured. In addition, since the configuration is simple, the construction can be easily performed, and the construction cost can be reduced. Furthermore, since there is no subject of the prior art "cleaning of the ditch", management costs can also be reduced. In the present embodiment, the work road crossing groove 1 for afforestation is buried in a plurality at predetermined intervals in the length direction of the work path M for afforestation, but in FIG. 9 and FIG. It shows about 1.

Second Embodiment
FIG. 11 shows a perspective view of the afforestation work path crossing groove 10 of the second embodiment of the present invention, and FIG. 12 shows a plan view of the afforestation work path crossing groove 10 of the second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the member of the same structure as 1st Embodiment. The working road crossing groove 10 for afforestation differs from the working road crossing groove 1 for afforestation according to the first embodiment in that in the first embodiment, the supporting square bars 2 are a pair of long first square bars 2a and a second square bar In the second embodiment, the support square member 12 is formed only of the second square rod 2b used in the first embodiment, and the width W 14 of the second elastic member 14 is the second one. The width is the same as the width W2b of the square 2b, and the length L13 of the first elastic member 13 is longer than the length L2b of the second square 2b. For this reason, as shown in FIGS. 11 and 12, the first elastic member 13 is attached to the front surface of the second square bar 2b, and the screwing means 5 is attached to the second square bar 2b and the first elastic member 13 in the front-rear direction. The second square bar 2b and the first elastic member 13 are screwed and fixed, and the fixing means 6 is fixed by penetrating the fixing means 6 in the vertical direction of the second square bar 2b. The fixed end 14 a of the second elastic member 14 is fixedly attached to the upper surface of the second square 2 b by the fixing means 7. In the present embodiment, since the width W 14 of the second elastic member 14 is narrower than the width W 4 of the second elastic member 4 in the first embodiment, the first elastic member 13 blocks water and collects water. By setting the length L13 of the first elastic member 13 longer than the length L2b of the second square bar 2b in order to reduce leakage of flowing water, the protruding band portion 13a is larger than the protruding band portion 3a of the first embodiment. It is configured to be longer toward the valley side Vs. Therefore, the actions and effects are also the same as the actions and effects of the first embodiment. The entire length of the first elastic member 13 may not be uniformly extended, but only the portion of the protruding band 13a may be longer than the length L2b of the second square bar 2b. In the second embodiment, the attachment position of the fixed end 14a of the second elastic member 14 to the second square bar 2b may need to be appropriately adjusted also by the positional relationship between the mountain side Ms and the valley side Vs.

Third Embodiment
FIG. 13 shows a perspective view of the afforestation work path crossing groove 20 of the third embodiment of the present invention, and FIG. 14 shows a plan view of the afforestation work path crossing groove 20 of the third embodiment of the present invention. The third embodiment is the same as the first embodiment in that the support square 22 is composed of the first square 22a and the second square 22b, but the first square 22a has a plurality of the second square 22a and the second square 22b. The point which is connected and constituted by the 1st division square bar 221a, and is constituted by connecting the 2nd square bar 22b by a plurality of 2nd division square bars 221b differs. The first split square member 221 a includes a joint portion 221 c at one end or both ends, and adjacent first split square bars 221 a are connected to each other by the joint portion 221 c. Further, the second split square member 221 b includes a joint portion 221 c at one end or both ends, and adjacent second split square bars 221 b are connected by the joint portion 221 c. In the figure, in the first divided square members 221a disposed at both ends of the support square 22, the joint portion 221c may be formed at one end, and the other first divided square members 221a are disposed at both ends. The joint portion 221c is formed. Similarly, as for the second divided square members 221b disposed at both ends of the support square 22, the joint portion 221c may be formed at one end, and the other second divided square members 221b may be disposed at both ends. The joint portion 221c is formed. The configuration of the joint portion 221c is preferably a joint joint as shown, but other joints may be used.

  In a state in which the first elastic member 23 is held so that the band-like protruding band portion 23 a protrudes from the upper surface of the support square member 22 by the corresponding first division square members 221 a and the second division square members 221 b. The plurality of screwing means 5 are penetrated in the horizontal direction and fixed by screwing between the divided squared member 221a, the second divided squared member 221b and the first elastic member 23. As illustrated, the first elastic member 23 may be formed of a single rubber belt having substantially the same length as the support square 22, or may be divided into divided elastic members formed of a plurality of rubber belts. . In addition, similarly to the first embodiment, the second elastic member 4 and the fixing means 7, the fixing means 6 with anchor pins, and the like are provided. In the third embodiment, the fixing means 6 is screwed into the countersunk hole 5a so that the bolt head and the nut of the screwing means 5 do not protrude from the front and back of the support square member 22. In addition, a washer is used for the screwing means 5.

  According to the third embodiment, the support square 22 is formed of the first square 22a and the second square 22b, and the first square 22a is connected by the plurality of first divided square 221a, and The first divided square bars 221a and the second divided square bars 221b are appropriately connected by connecting the second square bars 221b of the second square bars 22b, and the work road for afforestation with a wide width is formed. Can also be applied to If a member exceeding 4 m is used when manufacturing the support square 22, the price of the member becomes extremely high, but according to the third embodiment, the first split square 221 a of 2 m or less, the second The manufacturing cost can be reduced by manufacturing the split square bar 22b. In addition, when the length of the supporting square is too long, transportation is difficult, but according to the third embodiment, the afforestation work road crossing groove 20 is transported in a divided state and assembled on site , Transport can also be done easily. Also in the third embodiment, the same operation and effect as the first embodiment and the second embodiment can be achieved.

(Modification 1)
FIG. 15 shows a modification of the shape of the second elastic member. FIG. 15 (a) is a perspective view, and FIG. 15 (b) is a front view. In the first to third embodiments, the upper surface of the second elastic member 4 is illustrated in a flat shape, but as shown in FIGS. 15A and 15B, the second elastic member 14 is illustrated. A plurality of V-shaped grooves 14a may be formed on the upper surface side of the to make the flowing water flow more easily

(Modification 2)
FIG. 16 shows a modification of the width of the second elastic member. Fig.16 (a) is a modification of the width | variety of the elastic material of 1st Embodiment, FIG.16 (b) is a modification of the width | variety of the elastic material of 2nd Embodiment, and each is a left view. It shows. In the first embodiment (also in the third embodiment), the width W4 of the second elastic member 4 is the width W2a of the first square 2a and the thickness t3 of the first elastic 3 and the second square The second elastic member 14 is formed such that the width W14 of the second elastic member 14 is substantially equal to the width W2b of the second square bar 2b in the second embodiment. ), The width W104 of the second elastic member 104 is wider than the sum of the width W2a of the first square 2a, the thickness t3 of the first elastic 3 and the width W2b of the second square 2b. May be formed to constitute the work road crossing groove 100 for afforestation, and as shown in FIG. 16B, the width W 114 of the second elastic member 114 is greater than the width W 2 b of the second square bar 2 b. A widening may be made to form the work channel crossing groove 110 for afforestation. According to these variations, it is possible to cope with a larger amount of flowing water.

1, 10, 20, 100, 110 work road crossing groove for forestation 2, 12, 22 support square bar 2a, 22a first square bar 2b, 12b, 22b second square bar 3, 13, 23 first elastic material 3a, 13a, 23a Protrusion bands 4, 14, 104, 114 Second elastic members 4a, 14a Fixing ends 4b, 14b Free ends 4c Notches 5 Screwing means 6, 7 Fixing means 14a V-shaped groove 221a 1 split square bar 221b 2nd split square bar 221c joint part F embankment FW water flow G ground M working road S1 cutting slope S2 embankment slope S3 earth slope slope SP slope protection work Ms mountain side Vs valley side WP Water hitting part

The present invention relates to an afforestation drainage implement for preventing afforestation due to running water of afforestation work roads.

Conventionally, on unpaved roads such as forest roads and work roads (hereinafter collectively referred to as “work roads for afforestation”), crossing drainage is used to prevent erosion of the road by running soil such as rainwater A tool is provided. As a prior art of this crossing drainage device , for example, in patent document 1, "generally, in the forest, for the purpose of transportation of forest products and traffic necessary for forestry management, construction of forest roads and work roads leading to the inside and outside of the forests Since this forest road or work road is generally unpaved and drainage from the forest road or work road is largely related to maintenance of the forest road or work road, rainwater on the road surface, water flowing out of the side slope, or Water by the side of the road should be promptly removed so that it does not stagnate, and water should not enter the roadbed.The most common drainage method for this purpose is to set up a ditch along the side of the road. According to the gutters, if the collected water is allowed to flow down a long section, the flow rate will be increased to overflow the surface and cause scouring of the road surface, so a suitable spot will be selected to cross the road from the mountain side to the valley side Need to provide However, according to gutters and crossing gutters, the construction cost is huge, and there is a problem such as flooding from gutters when there is much rainfall even if there are crossing gutters. It has been described that “drainage tools are buried at intervals and the drainage tools are used to discharge running water on the road surface to the valley side” (see paragraphs “0002” to “0004”).

  If, for example, concrete U-shaped ditch is used as the above-mentioned "crossing weir", wood waste, dead leaves, earth and sand etc. will be deposited in the ditch and the effect of drainage will not be exhibited. Then, there is a problem that the U-shaped groove made of concrete is expensive. Therefore, as described above, instead of the "side groove" and the "crossing weir", the "drainage tool" is used and the "drainage tool" As materials, elastic materials such as wood (especially thinning materials) and rubber are often used, and as drainage devices using elastic materials such as rubber, for example, as shown in the following Patent Documents 1 to 5: Various inventions and inventions have been proposed.

  Patent Document 1 mentioned above “consists of a square member embedded from one side to the other side of the roadside and a flexible member fixed to the square member, and the flexible member has a double-folded structure with both side edges The draining device for road surface is characterized in that the lower end formed by polymerization is fixed along the longitudinal direction of the square bar, and the upper end which becomes an inverted U-shape protrudes on the road surface (see "claim 1"). Patent Document 2 describes an elongated reinforcement portion embedded in the ground in a direction crossing the road and a length for raising from this reinforcement portion and projecting to the ground, with the upper surface not protruding from the ground. A road surface drainage zone characterized in that it is formed of a plate-like portion made of an elastic material of a scale (see "claim 1") is described. Attach the membrane (3) in an arc shape, sandwich the two sides with the fixed sub-base (4), and A forest road crossing drainage induction membrane which is tightened in 5) (see “claim 1”) is described, and in patent document 4 “long plate-like elastic part and one embedded in a direction crossing the road” A long support portion for supporting the elastic member to project on a road surface, and a long support reinforcement portion provided between the support portion and the support base of the road, the support reinforcement A road surface drainage band characterized by movably attached to the bottom surface of the support portion (see "claim 1") is described. A band consisting of an elastic plate for guiding the two, a plurality of grounding pieces that can be bent or curved with respect to the band below the band and grounded to the installation surface, and fixing means for fixing the ground pieces It is a self-supporting water channel which is equipped with a strap section standing and fixed by a plurality of fixed grounding strips. Therefore, at least any two or more of the ground contact pieces are characterized in that they are alternately bent or curvedly fixed to one band surface side and the other band surface side of both band surfaces. (See "claim 1") is described.

True No. 3022672 Japanese Utility Model Publication No. 07-043247 Unexamined-Japanese-Patent No. 2006-112208 Patent No. 4187781 Patent No. 4793695 gazette

For example, in Patent Document 1, the "water drainage device for road surface" is formed by fixing the "flexible member 2" having the same length as the "corner 1" to the "corner 1", and the "corner 1" Embedded and “Can direct and discharge rainwater flowing from the mountain side to the valley side G with the flexible member 2 protruding on the road surface R” (see paragraph “0023”, FIG. 3). It is done. Here, since it is described that “the square block 1 is embedded from one side to the other side of the roadside m, m in the work path M” (paragraph “0022”, see FIG. 3), “flexibility” Both ends of the member 2 are considered to be formed so as to be located on both sides of the "road m, m" of the "working path M", that is, both road ends of the "working path M" (FIG. 1, FIG. 3) Etc.). In addition, in FIG. 3, in “valley side G” of “working path M”, a ground is often cut off and a direct embankment is directly formed without providing a slope protection construction on the ground. In such a case, the falling point (hereinafter referred to as the "water tapping portion") of the flowing water that is "guided to the valley side G by the flexible member 2 and discharged" (hereinafter referred to as "water tapping portion") becomes a part of the embankment slope. Note that "flowing water" includes "rainwater on road surface, water flowing out from a side slope, or spring water beside a road" (see paragraph "0002") described in Patent Document 1. The same applies below. In general, since the ground strength of the embankment is considerably weaker than that of the ground, if the discharge of running water is repeated many times in the same "water hitch", the "water hitch" gradually erodes In the worst case, there is a problem that the embankment slope collapses. And this problem, there is also common to the invention described in Patent Document 2-5.

  Both ends of the "plate-like portion 4 made of an elastic material" of Patent Document 2 are formed so as to be located at both road ends of "Road 2" (see FIG. 1, FIG. 3, FIG. 4, etc.) Both ends of the “elastic membrane (3)” are formed so as to be located at both road ends of “forest path” (see FIG. 1 etc.), and both ends of “elastic part 4” in patent document 4 Both ends of the “band portion 1” of Patent Document 5 are located at both road ends of the “unpaved road surface” (see FIGS. 2 and 5 etc.). It is formed (see FIG. 7), and the invention described in any document does not provide the side groove at the road end of the road, and the rain water is discharged to the water strike portion of the slope of the embankment. It is inferred that what is assumed.

For this reason, in the present invention, the valley side of the afforestation work path is formed so that the water tapping portion of the drained water to be discharged will be a lower ground than the embankment in the configuration where the embankment is directly formed on the underground. The purpose of the project is to provide drainage tools for afforestation.

Further, in the present invention, in the configuration in which the valley side of the afforestation work road is formed on the ground by the embankment via slope protection work, the water strike portion of the discharged water is the slope protection below the embankment The purpose is to provide a drainage implement for afforestation work that is formed to be a work.

Another object of the present invention is to provide an afforestation work drainage implement that is inexpensive and easy to install.

Another object of the present invention is to provide an afforestation work crossing drainage that can reduce management costs.

In order to achieve the above object, the invention according to claim 1 is an afforestation work crossing drainage provided for a non-paved afforestation work path, for blocking and discharging running water, comprising a long length And a first elastic member and a second elastic member attached to the support rectangular member, wherein the first elastic member is formed in a band shape, and an upper end thereof protrudes from an upper surface of the support rectangular member. The second elastic member is formed in a band shape, one end of the both ends is fixed to the upper surface of the support square, and the other end is not fixed. Do.

The invention according to claim 2 is the work road crossing drainage for afforestation according to claim 1, wherein the unpaved work road for afforestation is laid between a mountain side and a valley side, The valley side has a configuration in which a filling is formed on the upper side of the ground, and the second elastic member is formed such that the other end not fixed is able to reach the ground. It is characterized by

The invention according to claim 3 is the work channel crossing drainage for afforestation according to claim 1, wherein the unpaved work channel for afforestation is laid between a mountain side and a valley side, The valley side has a configuration in which the embankment is formed on the upper side of the ground through slope protection work, and the other end of the second elastic material can reach the slope protection work. It is characterized in that it is formed in the following length.

The invention according to claim 4 is the work road crossing drainage device for afforestation according to any one of claims 1 to 3, wherein the support square members are disposed to face each other. A plurality of first divided bars are connected to each other, and a plurality of second divided bars are connected to each other. The one end portion of the second elastic member is fixed to the upper surface of the first divided square member and the second divided square member.

According to the work road crossing drainage device for afforestation of the present invention, when installed on the work path for afforestation, the water tapping part is formed on the ground or slope protection work below the embankment, so the discharged water is The remarkable effect that there is no risk of eroding the embankment can be achieved.

In addition, according to the work road crossing drainage for afforestation of the present invention, since the work crossing drainage for afforestation is formed using thinning materials and scraps of rubber belts, it is inexpensive and construction is easy, and maintenance etc. There is a remarkable effect that the management cost of

Further, according to the afforestation work drainage implement for drainage according to the present invention, since it is not necessary to clean the ditch as in the prior art, it is possible to achieve a remarkable effect that the management cost can be reduced.

It is a perspective view of the work road crossing drainage for afforestation of 1st Embodiment of this invention. It is a front view of FIG. It is a rear view of FIG. It is a left view of FIG. It is a right view of FIG. It is a top view of FIG. It is a bottom view of FIG. It is sectional drawing explaining the structure of the working path for afforestation. It is sectional drawing explaining the use condition of 1st Embodiment of this invention. It is a perspective view explaining the use condition of 1st Embodiment of this invention. It is a perspective view of the work road crossing drainage for afforestation of 2nd Embodiment of this invention. It is a top view of FIG. It is a perspective view of the work road crossing drainage for afforestation of 3rd Embodiment of this invention. It is a top view of FIG. It is a figure explaining the modification of the shape of the elastic material of this invention. It is a figure explaining the modification of the width | variety of the elastic material of this invention.

  Hereinafter, the present invention will be more specifically described using a preferred embodiment. However, the following embodiments are merely examples embodying the present invention, and the present invention is not limited thereto. For convenience of explanation, the directions of upper, lower, left and right shown in the present specification correspond to the directions of upper, lower, left and right of arrows shown in the figure.

First Embodiment
<Overall configuration>
1 shows a perspective view of the work road crossing drainage for afforestation according to the first embodiment of the present invention, FIG. 2 shows a front view of FIG. 1, FIG. 3 shows a rear view of FIG. 1 and FIG. 1 shows a left side view of FIG. 1, FIG. 5 shows a right side view of FIG. 1, FIG. 6 shows a plan view of FIG. 1 and FIG. 7 shows a bottom view of FIG.
As shown in the figure, the work road crossing drainage device for afforestation 1 according to the first embodiment of the present invention includes a long support square member 2 and a first elastic member 3 and a second elastic member attached to the support square member 2. The first elastic member 3 is formed in a band shape, and is attached to the support square 2 so that the upper end thereof protrudes from the upper surface of the support square 2. The second elastic material 4 is formed in a band shape. Of the left and right ends, the right end is fixedly attached to the upper surface of the support square 2, and the left end is not fixed. The fixed right end of the second elastic member 4 is referred to as a fixed end 4a, and the left end not fixed is referred to as a free end 4b.

<Support square 2>
In the first embodiment, the support square 2 is composed of a long rectangular prism-shaped first square 2a and a second square 2b. The first square bars 2a and the second square bars 2b are preferably formed in the same shape. The first square bar 2a is disposed on the front side, the second square bar 2b is disposed on the rear side, and the first elastic member 3 is sandwiched from the front and back by the first square bar 2a and the second square bar 2b. In the state, the plurality of screwing means 5 are penetrated in the front-rear direction and fixed by screwing the first square bar 2a, the second square bar 2b and the first elastic member 3.

<Screw attachment means 5>
The screwing means 5 is composed of a bolt and a nut, and in the figure, the bolt is screwed through the first square bar 2a, the first elastic member 3 and the second square bar 2b from the rear side. A nut is screwed from the front side to the inserted bolt, and the first square bar 2a, the first elastic member 3 and the second square bar 2b are fixed. A plurality of screwing means 5 are screwed at predetermined intervals in the longitudinal direction of the first square bar 2a, the first elastic member 3 and the second square bar 2b. The bolt may be screwed in from the front side, and the nut may be screwed in from the rear side.

<Fixing means 6>
The fixing means 6 is fixed by penetrating the first square bar 2a or the second square bar 2b in the vertical direction between screw shafts (bolt axes in the drawing) of the plurality of screwing means 5. For example, an anchor pin is used as the fixing means 6 as illustrated. The anchor pin includes a head locking to the upper surface of each of the first square bar 2a and the second square bar 2b, and a leg bent from the head and extending downward, and the tip of the leg is sharpened It is formed. The anchor pin has a length such that part of the leg portion protrudes from the lower surface of the first square bar 2a and the second square bar 2b when driven into the first square bar 2a and the second square bar 2b. is there.

<First Square Bar 2a and Second Square Bar 2b>
The supporting square bar 2 composed of the first square bar 2a and the second square bar 2b is a predetermined one for the afforestation work road so as to obliquely cross the unpaved afforestation work road from the mountain side to the valley side. Buried at an angle (details will be described later). The length L2 of the support square 2 is formed such that both ends of the support square 2 can be located at both ends of the afforestation work road. In the present embodiment, for convenience of explanation, the length L2a of the first square bar 2a and the length L2b of the second square bar 2b are also described as being equal to the length L2 of the support square bar 2.

<First elastic member 3>
The first elastic member 3 is formed in a strip shape having a length L 3, a width W 3, and a thickness t 3, and the upper end portion protrudes from the afforestation work road when buried together with the supporting square 2 on the afforestation work road Thus, a strip-shaped protruding band 3 a protruding from the upper surface of the support square 2 is provided along the longitudinal direction of the support square 2 and attached to the support square 2. The width of the protruding band 3a is indicated by W3a. The protruding band portion 3 a holds the running water and guides it to the second elastic member 4 to collect water. The lower end of the first elastic member 3 may be at the same position as the lower ends of the first square bar 2a and the second square bar 2b as illustrated, but the screw shaft (that is, the axis of the bolt) of the screwing means 5 is inserted It should be below the position where it is The length L3 of the first elastic member 3 is preferably formed to be equal to the length L2 of the support square 2 as illustrated, but the length L3 of the first elastic member 3 is It may be slightly longer than the length L2 of the support square 2.

<Width of Second Elastic Material 4>
In the first embodiment, the width W4 of the second elastic member 4 is substantially equal to the sum of the width W2a of the first square 2a, the thickness t3 of the first elastic 3 and the width W2b of the second square 2b. It is set equally (see especially FIG. 4). When the work road crossing drainage device 1 for afforestation is installed and used on the work path for afforestation, the flowed water collected and collected by the first elastic member 3 is free along the second elastic member 4 In order to reduce leakage as much as possible from the end portion 4 b to the water hitting portion of the ground, the width W 4 of the second elastic member 4 should preferably be wide.

<Fixing means 7>
The fixed end 4a of the second elastic member 4 is fixed and attached by the fixing means 7 at a predetermined position on the upper surface of the first square bar 2a and the second square bar 2b. The fixed end 4a is provided with a notch 4c, so that the notch 4c sandwiches the projecting band 3a of the first elastic member 3, and the fixed end 4a is made of the first square 2a and the second square It is attached to the top of 2b. For example, a screw washer as illustrated is used as the fixing means 7. The screw washer has an integrated washer and nut so that the anchor bolt can be screwed on. Since the washer does not protrude from the upper surface of the second elastic member 4, it is possible to prevent damage to the tire when the vehicle travels. Further, the anchor bolt is penetrated to the right side position than the screwing means 5 at the left end. The number and the mounting position of the fixing means 7 can be appropriately changed according to the length (that is, the weight) of the second elastic member 4 attached to the first square 2a and the second square 2b. For example, when the length of the second elastic member 4 is increased and the weight is increased, the fixed end 4a is moved to the right of the first square 2a and the second square 2b to increase the number of fixing means 7 You may make it the structure attached.

<Length of Second Elastic Material 4>
In the present invention, unlike the prior art, the belt-shaped second elastic member 4 is provided on the support square 2, and the length L4 of the second elastic member 4 is the configuration of the valley side of the afforestation work path It is decided according to. Generally, the afforestation work road is a method of cutting the soil on the slope of the mountain and stacking the cut soil on the slope of the mountain below to form a fill, and this embankment Is laid on top of A cut slope is formed on the mountain side, and an embankment slope is formed on the valley side. At this time, there are a configuration in which the embankment is directly formed on the ground, and a configuration in which the embankment is formed through slope protection work such as a vegetation work or a construction work formed on at least a part of the ground. Slope protection works are provided for environmental protection of the embankment and erosion prevention, etc. Slope vegetation works are constructed by growing plants on slopes, and structure works are structures such as concrete篭, building walls etc.).

[In the case of a configuration in which the valley side is directly embanked on the upper side of the earth's body]
The afforestation work road M, in particular, in laying the work road, it is difficult to input huge construction costs for installing a slope protection work, as shown in FIG. 8 (a). In the Vs configuration, it is considered that the embankment F is formed directly on the upper side of the ground G without the slope protection work being installed. However, in general, the embankment F is known to be weaker in ground strength than the ground G and susceptible to erosion. When the water tapping portion, that is, the drop point of the flowing water discharged from the afforestation work passage crossing drainage tool is directly on the filling F, the filling F may be eroded by the flowing water. Therefore, the inventor of the present invention invented a crossing afforestation work drainage implement configured so that the water tapping part is not filled.
In the first embodiment, the free end 4b of the second elastic member 4 is formed from the embankment F on the valley side Vs when the work road crossing drainage device 1 for afforestation is buried in the unpaved work path M for afforestation. The length L4 of the second elastic member 4 is formed so as to reach the lower ground G. In other words, a mountain where the flowing water blocked and induced by the first elastic member 3 is collected and discharged along the second elastic member 4 and the discharged water is formed below the embankment F. Since it can reach G, the water tapping portion WP is formed on the slope S3 of the ground G, and there is no risk that the embankment F will be eroded by running water. The length L4 of the second elastic member 4 is appropriately adjusted in consideration of the height of the filling F, the length of the filling slope S2 determined by the gradient, and the like.

[In the case that the valley side is the configuration where the embankment is formed on the upper side of the earth via slope protection work]
As described above, since the embankment has lower ground strength than the ground and is susceptible to erosion, a slope protection work SP is partially formed on the ground G as shown in FIG. 8 (b). An embankment F may be formed on the slope protection work SP. The slope protection work SP is formed of a structure work (retaining wall, futon fence, etc.) and a vegetation work as described above, and therefore has a stronger ground strength than the embankment F. When the valley side Vs has such a configuration, the water tapping portion (the drop point of the flowing water discharged from the work road crossing drainage for afforestation) WP may be formed on the slope protection work SP. That is, the length L4 of the second elastic member 4 of the work road crossing drainage device 1 for afforestation does not have to be so long as the free end 4b reaches the ground G of the valley side Vs, and at least the free end 4b Should just be formed in the length which reaches slope protection worker SP. Incidentally, vegetation Engineering after installation, until the plant grows to a certain size, since the ground is not formed to the desired strength, afforestation working canal construction the same time vegetation Engineering transverse drainage device 1 In the case where the second elastic member 4 is installed, preferably, the length L4 of the second elastic member 4 is formed such that the free end 4b can reach the ground G of the valley side Vs.

<Material>
In the present embodiment, since thinnings are used for the first square bar 2a and the second square bar 2b, the first square bar 2a and the second square bar are inexpensive by using square bars instead of logs. Stability is improved when 2b is buried in the afforestation work road. Further, the fixing means 6 is penetrated in the vertical direction of the first square bar 2a and the second square bar 2b so that the lower part of the fixing means 6 protrudes from the lower end surface of the first square bar 2a and the second square bar 2b. Because it is fixed, the stability at the time of burial is further improved. Since waste materials of rubber belts are used for the first elastic member 3 and the second elastic member 4, the manufacturing cost can be reduced.

<Usage condition>
Next, the usage condition of the afforestation work road crossing drainage device 1 of the present embodiment will be described. Figure 9 is a cross-sectional view illustrating the use state of afforestation working canal cross drainage device 1, FIG. 10 is a perspective view illustrating the use state of afforestation working canal cross drainage device 1. FIG. 9A and FIG. 10 show the above-mentioned “the case where the valley side has a configuration in which the filling is directly formed on the upper side of the ground”. FIG. 9 (b) shows the above-mentioned “the case where the valley side has a configuration in which the embankment is formed on the upper side of the ground through the slope protection work”. As shown in the figure, a part of the slope of the hill G on the valley side Vs is cut off to form an embankment F on the hill G slope, and a work path M for afforestation is laid on the hill G and the embankment F ing. A cutting slope S1 of the mountain G is formed on the mountain side Ms of the afforestation work path M. When the afforestation work path M is provided with a cross slope, the afforestation work path cross drainage implement 1 may be installed in accordance with the cross slope.

Hereinafter, “the case where the valley side has a configuration in which the embankment is directly formed on the upper side of the ground” will be described with reference to FIGS. 9A and 10. The afforestation work road crossing drainage tool 1 is buried so as to cross the unpaved afforestation work path M diagonally from the mountain side Ms to the valley side Vs in order to collect the flowing water and discharge it to the valley side Vs. . Both ends of the support square 2 which constitutes the work road crossing drainage 1 for afforestation are buried so as to be located at both road ends of the unpaved work road M for afforestation. The same applies to the first square 2a, the second square 2b, and the first elastic member 3. The supporting block 2 is buried in the ground G or the underfill F below the afforestation work path M so that the upper surface thereof coincides with the road surface of the afforestation work path M, and the first elastic member 3 is a projecting band 3a. Are buried in the ground of the ground G or embankment F formed immediately below the afforestation work path M so as to project above the road surface of the afforestation work path M. Similarly, the screwing means 5 and the fixing means 6 are also buried in the ground of the ground G or the fill F immediately below the afforestation work path M.

The second elastic member 4 is disposed along the earth slope S2 of the embankment F, and the fixed end 4a of the second elastic member 4 is a road end on the left side (valley side Vs) of the afforestation work road M And the free end 4b of the second elastic member 4 is lower than the boundary point between the embankment F and the ground G, that is, lower than the boundary point between the earth slope S2 and the earth slope S3. It is configured to be formed. For this reason, as shown in FIG. 10, the running water FW such as rain water flowing from the upstream of the afforestation work road M or from the cut slope S1 is blocked by the protruding band portion 3a of the first elastic body 3 and the valley It is guided to the side Vs and collected, and flows along the second elastic body 4, and falls to the water tapping portion WP of the ground G below the embankment F and is discharged. That is, the water tapping portion WP is formed not on the embankment F but on the ground G below the embankment F. As a result, the problem of “the rainwater is discharged to the embankment and the embankment is eroded” is solved in the prior art, so the possibility of the embankment F collapse is eliminated. Further, since most of the flowing water FW is guided along the second elastic member 4 to the water tapping portion WP of the ground G, even if the flowing water FW overflows in the middle of the induction and is discharged, the amount is small, There is no risk of erosion even if it falls on the earth slope slope S2. And, since thinning materials are used for the first square 2a and the second square 2b, and scraps of rubber belts are used for the first elastic material 3 and the second elastic material 4, it is very cheap for afforestation The work road crossing drainage device 1 can be manufactured. In addition, since the configuration is simple, the construction can be easily performed, and the construction cost can be reduced. Furthermore, since there is no subject of the prior art "cleaning of the ditch", management costs can also be reduced. In the present embodiment, although the work road crossing drainage implement 1 for afforestation is buried in plural at predetermined intervals in the length direction of the work path for afforestation M, in FIG. 9 and FIG. The drainage device 1 is shown.

Second Embodiment
Figure 11 shows a perspective view of a forestation working canal cross drainage device 10 of the second embodiment of the present invention, it shows a plan view of a forestation working canal cross drainage device 10 of the second embodiment of the present invention in FIG. 12. In addition, the same code | symbol is attached | subjected to the member of the same structure as 1st Embodiment. The working road crossing drainage tool 10 for afforestation differs from the working road crossing drainage tool 1 for afforestation of the first embodiment in that in the first embodiment, the supporting square rod 2 is formed of a pair of long first square bars 2a and In the second embodiment, the support square member 12 is formed only of the second square rod 2b used in the first embodiment, and the width W 14 of the second elastic member 14 is set to the second square rod 2b. That is, the width L2 of the first elastic member 13 is made longer than the length L2b of the second square bar 2b. For this reason, as shown in FIGS. 11 and 12, the first elastic member 13 is attached to the front surface of the second square bar 2b, and the screwing means 5 is attached to the second square bar 2b and the first elastic member 13 in the front-rear direction. The second square bar 2b and the first elastic member 13 are screwed and fixed, and the fixing means 6 is fixed by penetrating the fixing means 6 in the vertical direction of the second square bar 2b. The fixed end 14 a of the second elastic member 14 is fixedly attached to the upper surface of the second square 2 b by the fixing means 7. In the present embodiment, since the width W 14 of the second elastic member 14 is narrower than the width W 4 of the second elastic member 4 in the first embodiment, the first elastic member 13 blocks water and collects water. By setting the length L13 of the first elastic member 13 longer than the length L2b of the second square bar 2b in order to reduce leakage of flowing water, the protruding band portion 13a is larger than the protruding band portion 3a of the first embodiment. It is configured to be longer toward the valley side Vs. Therefore, the actions and effects are also the same as the actions and effects of the first embodiment. The entire length of the first elastic member 13 may not be uniformly extended, but only the portion of the protruding band 13a may be longer than the length L2b of the second square bar 2b. In the second embodiment, the attachment position of the fixed end 14a of the second elastic member 14 to the second square bar 2b may need to be appropriately adjusted also by the positional relationship between the mountain side Ms and the valley side Vs.

Third Embodiment
FIG. 13 shows a perspective view of the afforestation work road crossing drainage device 20 of the third embodiment of the present invention, and FIG. 14 shows a plan view of the afforestation work road crossing drainage device 20 of the third embodiment of the present invention. The third embodiment is the same as the first embodiment in that the support square 22 is composed of the first square 22a and the second square 22b, but the first square 22a has a plurality of the second square 22a and the second square 22b. The point which is connected and constituted by the 1st division square bar 221a, and is constituted by connecting the 2nd square bar 22b by a plurality of 2nd division square bars 221b differs. The first split square member 221 a includes a joint portion 221 c at one end or both ends, and adjacent first split square bars 221 a are connected to each other by the joint portion 221 c. Further, the second split square member 221 b includes a joint portion 221 c at one end or both ends, and adjacent second split square bars 221 b are connected by the joint portion 221 c. In the figure, in the first divided square members 221a disposed at both ends of the support square 22, the joint portion 221c may be formed at one end, and the other first divided square members 221a are disposed at both ends. The joint portion 221c is formed. Similarly, as for the second divided square members 221b disposed at both ends of the support square 22, the joint portion 221c may be formed at one end, and the other second divided square members 221b may be disposed at both ends. The joint portion 221c is formed. The configuration of the joint portion 221c is preferably a joint joint as shown, but other joints may be used.

  In a state in which the first elastic member 23 is held so that the band-like protruding band portion 23 a protrudes from the upper surface of the support square member 22 by the corresponding first division square members 221 a and the second division square members 221 b. The plurality of screwing means 5 are penetrated in the horizontal direction and fixed by screwing between the divided squared member 221a, the second divided squared member 221b and the first elastic member 23. As illustrated, the first elastic member 23 may be formed of a single rubber belt having substantially the same length as the support square 22, or may be divided into divided elastic members formed of a plurality of rubber belts. . In addition, similarly to the first embodiment, the second elastic member 4 and the fixing means 7, the fixing means 6 with anchor pins, and the like are provided. In the third embodiment, the fixing means 6 is screwed into the countersunk hole 5a so that the bolt head and the nut of the screwing means 5 do not protrude from the front and back of the support square member 22. In addition, a washer is used for the screwing means 5.

According to the third embodiment, the support square 22 is formed of the first square 22a and the second square 22b, and the first square 22a is connected by the plurality of first divided square 221a, and The first divided square bars 221a and the second divided square bars 221b are appropriately connected by connecting the second square bars 221b of the second square bars 22b, and the work road for afforestation with a wide width is formed. Can also be applied to If a member exceeding 4 m is used when manufacturing the support square 22, the price of the member becomes extremely high, but according to the third embodiment, the first split square 221 a of 2 m or less, the second The manufacturing cost can be reduced by manufacturing the split square bar 22b. In addition, when the length of the supporting square is too long, it was difficult to transport, but according to the third embodiment, the afforestation work road crossing drainage device 20 is transported in a divided state and assembled on site. Transportation can be done easily. Also in the third embodiment, the same operation and effect as the first embodiment and the second embodiment can be achieved.

(Modification 1)
FIG. 15 shows a modification of the shape of the second elastic member. FIG. 15 (a) is a perspective view, and FIG. 15 (b) is a front view. In the first to third embodiments, the upper surface of the second elastic member 4 is illustrated in a flat shape, but as shown in FIGS. 15A and 15B, the second elastic member 14 is illustrated. A plurality of V-shaped grooves 14a may be formed on the upper surface side of the to make the flowing water flow more easily

(Modification 2)
FIG. 16 shows a modification of the width of the second elastic member. Fig.16 (a) is a modification of the width | variety of the elastic material of 1st Embodiment, FIG.16 (b) is a modification of the width | variety of the elastic material of 2nd Embodiment, and each is a left view. It shows. In the first embodiment (also in the third embodiment), the width W4 of the second elastic member 4 is the width W2a of the first square 2a and the thickness t3 of the first elastic 3 and the second square The second elastic member 14 is formed such that the width W14 of the second elastic member 14 is substantially equal to the width W2b of the second square bar 2b in the second embodiment. ), The width W104 of the second elastic member 104 is wider than the sum of the width W2a of the first square 2a, the thickness t3 of the first elastic 3 and the width W2b of the second square 2b. May be formed to constitute the work road crossing drainage device 100 for afforestation, and as shown in FIG. 16B, the width W 114 of the second elastic member 114 is greater than the width W 2 b of the second square bar 2 b. It may also be formed by widening to configure the work road crossing drainage 110 for afforestation. According to these variations, it is possible to cope with a larger amount of flowing water.

1, 10, 20, 100, 110 Afforestation work road crossing drainage 2, 12, 22 Support square bars 2a, 22a first square bars 2b, 12b, 22b second square bars 3, 13, 23 first elastic material 3a , 13a, 23a Protrusion bands 4, 14, 104, 114 Second elastic members 4a, 14a Fixing ends 4b, 14b Free ends 4c Notches 5 Screwing means 6, 7 Fixing means 14a V-shaped groove 221a 1st division square bar 221b 2nd division square bar 221c joint part F embankment FW water flow G earth m working road S1 for cutting a forest slope S2 embankment slope S3 earth slope slope SP slope protection work Ms mountain side Vs valley side WP water tapping part

Claims (4)

It is a work road crossing ditch for afforestation that is provided on a dirt afforestation work path and blocks and discharges running water,
Long supporting square bars,
A first elastic member and a second elastic member attached to the support square;
The first elastic member is formed in a band shape, and an upper end thereof is attached to the support square member so as to protrude from an upper surface of the support square member.
The second elastic member is formed in a band shape, and one end of the both ends is fixed to the upper surface of the support square and the other end is not fixed. Crossing groove. The above-mentioned unpaved work road for afforestation is laid between the mountain side and the valley side, and in the valley side, the embankment is formed on the upper side of the earth,
The work road crossing groove for afforestation according to claim 1, wherein the second elastic member has a length such that the other end which is not fixed can reach the ground. The above-mentioned unpaved work road for afforestation is laid between the mountain side and the valley side, and the valley side is a construction in which the embankment is formed on the upper side of the ground through the slope protection work,
The work path crossing for afforestation according to claim 1, wherein the second elastic member has a length such that the other end which is not fixed can reach the slope protector. groove. The support block is composed of a first block and a second block disposed opposite to each other.
The first square bar is configured by connecting a plurality of first divided square bars,
The second square bar is configured by connecting a plurality of second divided square bars,
The one end of the second elastic member is fixed to the upper surface of the first divided square and the upper surface of the second divided square. Afforestation work road crossing ditch as described in 1.

Images