KR102179225B1 - Construction method of shoulder uneven structure and shoulder uneven structure - Google Patents

Abstract

The present invention relates to a method for constructing an uneven structure on a shoulder, which includes the following steps of: a) paving and curing an asphalt road or a concrete road; b) painting a traffic lane; and c) forming an asymmetrical groove by rotation cutting after a blade suitable for a size and a shape of the asymmetrical groove is installed on cutting equipment. Therefore, the uneven structure on the shoulder enables a driver to immediately recognize a departure from the traffic lane.

Description

Construction method of shoulder uneven structure and shoulder uneven structure}

The present invention relates to a shoulder uneven structure construction method and a shoulder uneven structure, and more particularly, by forming an asymmetric groove, a longitudinal drainage groove, and a lateral drainage groove on the shoulder next to a driveway to prevent departure from the lane of the vehicle, and The present invention relates to a method of constructing a concave-convex shoulder structure and a concave-convex structure on the shoulder that can improve the visibility of the road and increase the road drainage effect.

Lanes are formed at regular intervals on the road surface of the road to guide the driving direction of the vehicle traveling on the road. Vehicles running on roads must travel safely along lanes divided into lanes, but there are cases in which the driver may drive out of the lane due to immaturity, drowsiness, carelessness, bad weather, etc., and in severe cases, traffic accidents, falls, etc. Will occur.

If the vehicle leaves the specified lane for the above reasons, it is important to ensure the safety of the driving vehicle by notifying the driver that the vehicle has left the lane.

As a way to notify the driver that you are out of a defined lane, there may be a method of alerting the driver by means of sensors and sound equipment installed in advance on the road, which is too expensive to install on all roads. There is a disadvantage in that it is required, and in particular, there is a problem in that the effectiveness is deteriorated because there may be many cases in which the driver cannot hear the warning sound.

Another way to inform the driver that you are out of a defined lane is to make the driver feel vibration by forming irregularities on the surface of the road.

However, simply forming irregularities on the road surface can make the driver feel the vibration immediately, but the water accumulated in the grooves is not well drained, so water may accumulate in irregularities in rainy weather, which can interfere with driving safety. As a result, there is a problem in that water splashes into vehicles in the adjacent sidewalks and lanes, obstructing the view.

In addition, irregularities formed on the road surface may be worn or depressed due to repeated driving of the vehicle, and foreign matter and soil may accumulate inside the grooves and become clogged, thereby deteriorating the original function.

Patent Document 0001 is a concrete product such as a square tube and an L-shaped sideway installed at the border of a roadway and a sidewalk, which is rotated within a range of 10 to 30 degrees in the direction of the vehicle or bicycle on one side of the upper surface exposed to the ground. The vibration generated by the driving vehicle or bicycle by forming a plurality of protrusions (16, 21, 31, 41, 51) integrally formed with the upper surface in a state of stepping on the protrusions (16, 21, 31, 41, 51) As a result, it relates to a lane departure prevention structure that makes it possible to recognize the presence or absence of a lane departure, and Patent Document 0001 is a structure that is difficult to apply to existing roads because it is formed in a drain pipe, and thus a fundamental solution to the above problem was not presented.

Therefore, it was necessary to develop an uneven structure on the shoulder and a construction method that notifies the driver of the departure of the lane and smoothly drains the road surface, and does not block the entire groove even if foreign matter penetrates, and thus does not degrade its original function.

Korean Utility Model Registration No. 20-0457962

In order to improve the problems of the prior art as described above, an object of the present invention is to provide a shoulder uneven structure construction method and a shoulder uneven structure in which the function is not degraded even after time while notifying the driver of the vehicle departure.

An object of the present invention is to provide a shoulder uneven structure construction method and a shoulder uneven structure capable of smoothly draining a road surface.

In the present invention, in the method of constructing the uneven structure of the shoulder, a) paving and curing an asphalt road or a concrete road; b) painting the lane; c) installing a blade suitable for the size and shape of the asymmetric groove 100 on the cutting equipment, and then forming the asymmetric groove 100 by rotating cutting; d) forming a longitudinal drainage groove 20 and a transverse drainage groove 30, wherein the longitudinal drainage groove 20 communicates while being orthogonal to the asymmetric groove 100, and the transverse drainage groove 20 The groove 30 communicates with the longitudinal drainage groove 20 and the drainage facility, and the longitudinal drainage groove 20 includes a cloth groove 21 and a shim groove 22 formed deeper than the cloth groove 21 And, the cloth groove 21 is formed by a first wall surface 211 and a first bottom surface 212, and the shim groove 22 is a second wall surface 221, a second bottom surface 222, and a third It is formed by the wall surface 223, the cloth groove 21 and the shim groove 22 communicate with each other, and the transverse drainage groove 30 is a shim groove formed deeper than the cloth groove 31 and the cloth groove 31 ( 32), wherein the cloth groove 31 is formed by a first wall surface 311 and a first bottom surface 312, and the shim groove 32 is a second wall surface 321 and a second bottom surface 322 ) And a third wall surface 323, the cloth groove 31 and the shim groove 32 communicate with each other, and the asymmetric groove 100 is a first curved portion 110 having a convex downward shape, and The convex shape of the second curved portion 120 and both side portions, wherein the second bottom surface 222 is positioned to coincide with the deepest portion of the asymmetric groove 100 Provide construction method.

In the present invention, in the method of constructing the uneven structure of the shoulder, a) paving and curing an asphalt road or a concrete road; b) painting the lane; c) installing a blade suitable for the size and shape of the asymmetric groove 200 on the cutting equipment, and then forming the asymmetric groove 200 by rotating cutting; d) forming a longitudinal drainage groove 20 and a lateral drainage groove 30, wherein the longitudinal drainage groove 20 communicates while being orthogonal to the asymmetric groove 200, and the transverse drainage groove 20 The groove 30 communicates with the longitudinal drainage groove 20 and the drainage facility, and the longitudinal drainage groove 20 includes a cloth groove 21 and a shim groove 22 formed deeper than the cloth groove 21 And, the cloth groove 21 is formed by a first wall surface 211 and a first bottom surface 212, and the shim groove 22 is a second wall surface 221, a second bottom surface 222, and a third It is formed by the wall surface 223, the cloth groove 21 and the shim groove 22 communicate with each other, and the transverse drainage groove 30 is a shim groove formed deeper than the cloth groove 31 and the cloth groove 31 ( 32), wherein the cloth groove 31 is formed by a first wall surface 311 and a first bottom surface 312, and the shim groove 32 is a second wall surface 321 and a second bottom surface 322 ) And the third wall surface 323, the cloth groove 31 and the shim groove 32 communicate with each other, and the asymmetric groove 200 includes a small curvature part 210, and the small curvature part 210 It is formed by a large curved portion 220, a vertical surface portion 230 and both side portions 240 having a curvature greater than the curvature of, and the second bottom surface 222 is the deepest part of the asymmetric groove 200 It provides a method of constructing an uneven structure on the shoulder, characterized in that it is positioned to match with.

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In addition, in the present invention, in the shoulder uneven structure, the shoulder uneven structure includes a plurality of asymmetric grooves 100 provided on the shoulder outside the lane 41 along the longitudinal direction of the driveway; Longitudinal drainage groove 20; Including a transverse drainage groove 30, wherein the longitudinal drainage groove 20 communicates while being orthogonal to the asymmetric groove 100, and the transverse drainage groove 30 includes the longitudinal drainage groove 20 and In communication with the drainage facility, the longitudinal drainage groove 20 includes a cloth groove 21 and a core groove 22 formed deeper than the cloth groove 21, and the cloth groove 21 is a first wall surface 211 And a first bottom surface 212, and the shim groove 22 is formed by a second wall surface 221, a second bottom surface 222, and a third wall surface 223, and the cloth groove 21 And the shim groove 22 communicate with each other, and the transverse drainage groove 30 includes a cloth groove 31 and a shim groove 32 formed deeper than the cloth groove 31, and the cloth groove 31 is a first It is formed by a wall surface 311 and a first bottom surface 312, and the shim groove 32 is formed by a second wall surface 321, a second floor surface 322, and a third wall surface 323, the The cloth groove 31 and the shim groove 32 are in communication with each other, and the asymmetric groove 100 has a first curved portion 110 having a convex downward shape, a second curved portion 120 having a convex upward shape, and both side portions. And the second bottom surface 222 is positioned to coincide with the deepest portion of the asymmetric groove 100.

In the present invention, in the shoulder uneven structure, the shoulder uneven structure, a plurality of asymmetric grooves 200 provided on the shoulder outside the lane 41 along the longitudinal direction of the driveway; Longitudinal drainage groove 20; Including a transverse drainage groove 30, wherein the longitudinal drainage groove 20 communicates while being orthogonal to the asymmetrical groove 200, and the transverse drainage groove 30 includes the longitudinal drainage groove 20 and In communication with the drainage facility, the longitudinal drainage groove 20 includes a cloth groove 21 and a core groove 22 formed deeper than the cloth groove 21, and the cloth groove 21 is a first wall surface 211 And a first bottom surface 212, and the shim groove 22 is formed by a second wall surface 221, a second bottom surface 222, and a third wall surface 223, and the cloth groove 21 And the shim groove 22 communicate with each other, and the transverse drainage groove 30 includes a cloth groove 31 and a shim groove 32 formed deeper than the cloth groove 31, and the cloth groove 31 is a first It is formed by a wall surface 311 and a first bottom surface 312, and the shim groove 32 is formed by a second wall surface 321, a second floor surface 322, and a third wall surface 323, the The cloth groove 31 and the shim groove 32 communicate with each other, and the asymmetric groove 200 includes a small curvature part 210, a large curvature part 220 having a curvature greater than that of the small curvature part 210, It is formed by the vertical surface portion 230 and both side portions 240, and the second bottom surface 222 is located to coincide with the deepest portion of the asymmetric groove 200, providing a shoulder uneven structure do.

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The uneven shoulder structure construction method and the uneven shoulder structure according to the present invention have the following effects.

First, when the driver's vehicle deviates from the lane of the roadway boundary, the driver feels vibration while the wheel passes through the asymmetric groove, so that the driver can immediately recognize the fact that the vehicle is leaving the lane.

Second, the asymmetric groove of the present invention communicates with the longitudinal drainage groove, the longitudinal drainage groove communicates with the lateral drainage groove, and the lateral drainage groove is connected to a drainage facility, and the excellence flowing into the road surface and the asymmetrical groove As it can be quickly drained to a drainage facility, it is possible to reduce the road slip phenomenon caused by rain and alleviate the decrease in visibility of the outermost lanes caused by rain.

Third, since the asymmetric groove of the present invention has a curved surface, drainage is smooth, and in particular, by forming the deepest position of the asymmetric groove and the second bottom surface of the longitudinal drainage groove to match, the drainage performance can be further improved.

Fourth, the longitudinal drainage groove and the transverse drainage groove include cloth grooves and shim grooves that are in communication with each other, so that the grooves are not easily depressed even if the vehicle wheel repeatedly passes, and in particular, the overall depression of the grooves can be prevented. It can maintain the drainage performance even after a long time.

1 and 2 are conventional grooving cross-sections.
3 is a plan view of the uneven structure of the shoulder of the present invention.
4 is a perspective view of a lane and an asymmetric groove of the present invention.
5 is a first embodiment taken along the AA cross section of FIG. 3.
6 is a second embodiment taken along the AA cross section of FIG. 3.
7 is a cross-sectional view taken along BB of FIG. 3.
8 is a cross-sectional view taken along the line CC of FIG. 3.
9 and 10 are cross-sectional views showing drainage performance when foreign substances accumulate in the asymmetric groove 100.
11 to 14 are cross-sectional views showing the formation of an asymmetric groove by a plurality of blades.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification. Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 shows the uneven structure of the shoulder of the present invention.

As shown in FIG. 3, the uneven structure of the shoulder of the present invention includes a driveway 43 and a shoulder 42, and a grating 51 that becomes a part of a drainage facility outside the shoulder 42 is provided. In addition, a lane 41 is provided between the roadway 43 and the shoulder 42.

Along the lane 41, a plurality of asymmetric grooves 100 and 200 are formed at predetermined intervals along the lane 41, and a longitudinal drainage groove 20 is formed to communicate perpendicularly to the asymmetric grooves 100 and 200. It is formed, and one end of the plurality of transverse drainage grooves 30 is formed to communicate with the longitudinal drainage groove 20, and the other end of the transverse drainage groove 30 is connected by a grating 51.

Side portions 240 are formed on both sides of the asymmetric groove 200, and the bottom of the asymmetric groove includes a curved surface.

FIG. 5 shows a first embodiment of the cross section A-A of FIG. 3, and FIG. 6 shows a second embodiment of the cross section A-A of FIG. 3.

The asymmetric groove 100 of the first embodiment shown in FIG. 5 includes two curved surfaces. That is, the asymmetric groove 100 is formed by a first curved portion 110 having a convex downward shape, a second curved portion 120 having a convex upward shape, and both side portions (not shown).

In the first embodiment shown in FIG. 5, the first curved portion 110 is formed deeply downward in a convex downward shape starting from the side of the lane 41, and the end portion of the first curved portion 110 At, the second curved portion 120 meets, and the second curved portion 120 is convex upward and gradually becomes shallower to meet the road surface of the shoulder.

The asymmetric groove 100 of the first embodiment illustrated in FIG. 5 has a shape that forms a downward curved surface and becomes deeper, so that when the wheel passes, not only the driver feels vibration, but also the drainage can be smoothly performed.

In particular, even when gravel or foreign matter accumulates in the asymmetric groove 100, drainage may be performed under the gravel (see FIG. 9) or above the foreign material (see FIG. 10).

Water flowing into the asymmetric groove 100 may be drained to a drainage facility through a longitudinal drainage groove 20 that is orthogonally communicated. At this time, for smoother drainage, the deepest part of the asymmetric groove 100 and the second bottom surface 222 of the longitudinal drainage groove may be formed at the same position.

The asymmetric groove 200 of the second embodiment shown in FIG. 6 includes two curved surfaces and one plane. That is, the asymmetric groove 200 is a small curvature portion 210 formed in a convex downward shape, a large curvature portion 220 having a larger curvature (a small radius of curvature) than the curvature of the small curvature portion 210, a vertical surface It is formed by the portion 230 and both side portions 240.

In the second embodiment shown in FIG. 6, the small curvature part 210 is formed deeply downward in a convex downward shape starting from the side of the lane 41, and is large at the end of the small curvature part 210. When the curved portions 220 meet, the large curved portion 220 is formed in a convex shape downward with a greater curvature, and then leads to the vertical surface portion 230, and the vertical surface portion is formed vertically to meet the road surface of the shoulder. .

The asymmetric groove 200 of the second embodiment shown in FIG. 6 has a shape that forms a downward curved surface and becomes deeper, so that when the wheel passes, not only the driver feels vibration, but also drainage can be smoothly performed.

Water flowing into the asymmetric groove 200 may be drained to a drainage facility through a longitudinal drainage groove 20 that is orthogonally communicated. At this time, for smoother drainage, the deepest part of the asymmetric groove 200 and the second bottom surface 222 of the longitudinal drainage groove may be formed at the same position.

Asymmetric grooves (100, 200) are orthogonally communicated with the longitudinal drainage groove (20), one end of the transverse drainage groove (30) is in communication with the longitudinal drainage groove (20), the transverse drainage groove ( The other end of 30) is connected to a drainage facility (grating 51 and a drainage channel). Therefore, rainwater flowing down the road surface is sequentially drained to a drainage facility (grating 51 and drainage passage) through the asymmetric grooves 100 and 200, the longitudinal drainage grooves 20, and the lateral drainage grooves 30.

In FIG. 3, a grating 51 and a drainage passage (not shown) are described as an example as a drainage facility, but the drainage facility that can be drained through the lateral drainage groove is not limited to the grating 51 and the drainage channel, and the horizontal drainage groove Can also be connected to common water wells, gutters and drains.

And the longitudinal drainage groove 20 and the lateral drainage groove 30 of the present invention form a groove of a double structure.

The longitudinal drainage groove 20 includes a cloth groove 21 and a shim groove 22 formed deeper than the cloth groove 21, and the cloth groove 21 includes a first wall surface 211 and a first bottom surface ( 212), and the shim groove 22 is formed by a second wall surface 221, a second bottom surface 222, and a third wall surface 223, and the cloth groove 21 and the shim groove 22 are Communicate with each other

And the lateral drainage groove 30 includes a cloth groove 31 and a shim groove 32 formed deeper than the cloth groove 31, and the cloth groove 31 includes a first wall surface 311 and a first bottom surface 312, the shim groove 32 is formed by a second wall surface 321, a second bottom surface 322, and a third wall surface 323, and the cloth groove 31 and the shim groove 32 Communicate with each other.

In this way, since the longitudinal drainage groove 20 and the transverse drainage groove 30 of the present invention are formed in a dual structure, the groove is not easily dented even if the wheel of the vehicle passes repeatedly, and the groove is not completely dented. Only local depression occurs, and even if some foreign matter accumulates, the drainage performance can be maintained above a certain level.

Asymmetric grooves, longitudinal drainage grooves, and transverse drainage grooves having the above cross-sectional shape are formed by rotating cutting by rotating the rotating shaft 62 of the cutting equipment after fixing a plurality of blades 61 of different diameters to be interviewed. can do.

11 to 14, it is described that the asymmetric groove is formed by a plurality of blades.

11 and 13 illustrate that the blade ends of a plurality of blades are manufactured to have the same cross-sectional shape as a desired asymmetric groove and rotated. In FIGS. 12 and 14, blades having horizontal blade ends are formed in a cross-sectional shape of an asymmetric groove. It is described that it is made to have a diameter suitable for and rotated.

11 and 12 illustrate the formation of an asymmetric groove 100, and FIGS. 13 and 14 illustrate other shapes other than the first and second embodiments.

Hereinafter, a method of constructing an uneven shoulder structure having the above structure will be described.

First, pavement and cure the road. At this time, asphalt pavement is possible for road pavement, and concrete pavement is also possible. Since the asymmetric groove of the present invention is formed by rotational cutting by a cutting edge, there is an advantage that it can be applied not to a newly established road but also to an existing public road.

After that, it checks and decides where to paint the lane on the paved road.

Once the lane width and location are determined, paint the lane.

Then, an asymmetric groove is formed along the lane at the side of the lane.

After installing blades suitable for the size and shape of the required asymmetric groove on the cutting equipment, the asymmetric groove is formed by rotating cutting.

After the asymmetric grooves are formed, the longitudinal drainage grooves 20 and the lateral drainage grooves 30 are formed, and the width, depth, and spacing of the asymmetric grooves, the width, depth, and spacing of the longitudinal drainage grooves and the lateral drainage grooves, etc. And complete the construction by removing foreign substances and dust generated after cutting by using a dust collection facility.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100, 200. Asymmetric groove
110. First curved part 120. Second curved part
210. Small curvature part 220. Large grain flow part
230. Vertical side part 240. Side part
20. Longitudinal drainage groove
21. Cloth groove 22. Shim groove
211. First wall surface 212. First floor surface
221. Second wall surface 222. Second floor surface
223. The third wall
30. Transverse drainage groove
31. Cloth groove 32. Shim groove
311. First wall surface 312. First floor surface
321. Second wall surface 322. Second floor surface
323. The third wall
41. Lane 42. Shoulder
43. Driveway
51. Grating
61. Blade 62. Rotary shaft

Claims (10)

In the method of constructing the uneven structure of the shoulder,
a) paving and curing asphalt roads or concrete roads;
b) painting the lane;
c) installing a blade suitable for the size and shape of the asymmetric groove 100 on the cutting equipment, and then forming the asymmetric groove 100 by rotating cutting;
d) including the step of forming the longitudinal drainage groove 20 and the lateral drainage groove 30,
The longitudinal drainage groove 20 communicates while being orthogonal to the asymmetric groove 100, and the transverse drainage groove 30 communicates with the longitudinal drainage groove 20 and a drainage facility,
The longitudinal drainage groove 20 includes a cloth groove 21 and a shim groove 22 formed deeper than the cloth groove 21, and the cloth groove 21 includes a first wall surface 211 and a first bottom surface ( 212), and the shim groove 22 is formed by a second wall surface 221, a second bottom surface 222, and a third wall surface 223, and the cloth groove 21 and the shim groove 22 are Communicate with each other,
The transverse drainage groove 30 includes a cloth groove 31 and a shim groove 32 formed deeper than the cloth groove 31, and the cloth groove 31 includes a first wall surface 311 and a first bottom surface ( 312), and the shim groove 32 is formed by a second wall surface 321, a second bottom surface 322, and a third wall surface 323, and the cloth groove 31 and the shim groove 32 are Communicate with each other,
The asymmetric groove 100 is formed by a first curved portion 110 having a convex downward shape, a second curved portion 120 having a convex upward shape, and both side portions,
Characterized in that the second bottom surface 222 is positioned to coincide with the deepest part of the asymmetric groove 100
Construction method of uneven shoulder structure. In the method of constructing the uneven structure of the shoulder,
a) paving and curing asphalt roads or concrete roads;
b) painting the lane;
c) installing a blade suitable for the size and shape of the asymmetric groove 200 on the cutting equipment, and then forming the asymmetric groove 200 by rotating cutting;
d) including the step of forming the longitudinal drainage groove 20 and the lateral drainage groove 30,
The longitudinal drainage groove 20 communicates while being orthogonal to the asymmetric groove 200, and the transverse drainage groove 30 communicates with the longitudinal drainage groove 20 and a drainage facility,
The longitudinal drainage groove 20 includes a cloth groove 21 and a shim groove 22 formed deeper than the cloth groove 21, and the cloth groove 21 includes a first wall surface 211 and a first bottom surface ( 212), and the shim groove 22 is formed by a second wall surface 221, a second bottom surface 222, and a third wall surface 223, and the cloth groove 21 and the shim groove 22 are Communicate with each other,
The transverse drainage groove 30 includes a cloth groove 31 and a shim groove 32 formed deeper than the cloth groove 31, and the cloth groove 31 includes a first wall surface 311 and a first bottom surface ( 312), and the shim groove 32 is formed by a second wall surface 321, a second bottom surface 322, and a third wall surface 323, and the cloth groove 31 and the shim groove 32 are Communicate with each other,
The asymmetric groove 200 is formed by a small curved portion 210, a large curved portion 220 having a curvature greater than that of the small curved portion 210, a vertical surface portion 230, and both side portions 240 Become,
Characterized in that the second bottom surface 222 is positioned to coincide with the deepest portion of the asymmetric groove 200
Construction method of uneven shoulder structure. delete delete delete delete In the uneven structure of the shoulder,
The shoulder uneven structure may include a plurality of asymmetric grooves 100 provided on the shoulder outside the lane 41 along the longitudinal direction of the driveway; Longitudinal drainage groove 20; Including a transverse drainage groove (30),
The longitudinal drainage groove 20 communicates while being orthogonal to the asymmetric groove 100, and the transverse drainage groove 30 communicates with the longitudinal drainage groove 20 and a drainage facility,
The longitudinal drainage groove 20 includes a cloth groove 21 and a shim groove 22 formed deeper than the cloth groove 21, and the cloth groove 21 includes a first wall surface 211 and a first bottom surface ( 212), and the shim groove 22 is formed by a second wall surface 221, a second bottom surface 222, and a third wall surface 223, and the cloth groove 21 and the shim groove 22 are Communicate with each other,
The transverse drainage groove 30 includes a cloth groove 31 and a shim groove 32 formed deeper than the cloth groove 31, and the cloth groove 31 includes a first wall surface 311 and a first bottom surface ( 312), and the shim groove 32 is formed by a second wall surface 321, a second bottom surface 322, and a third wall surface 323, and the cloth groove 31 and the shim groove 32 are Communicate with each other,
The asymmetric groove 100 is formed by a first curved portion 110 having a convex downward shape, a second curved portion 120 having a convex upward shape, and both side portions,
Characterized in that the second bottom surface 222 is positioned to coincide with the deepest part of the asymmetric groove 100
Uneven structure on the shoulder. In the uneven structure of the shoulder,
The shoulder uneven structure may include a plurality of asymmetric grooves 200 provided on the shoulder outside the lane 41 along the longitudinal direction of the driveway; Longitudinal drainage groove 20; Including a transverse drainage groove (30),
The longitudinal drainage groove 20 communicates while being orthogonal to the asymmetric groove 200, and the transverse drainage groove 30 communicates with the longitudinal drainage groove 20 and a drainage facility,
The longitudinal drainage groove 20 includes a cloth groove 21 and a shim groove 22 formed deeper than the cloth groove 21, and the cloth groove 21 includes a first wall surface 211 and a first bottom surface ( 212), and the shim groove 22 is formed by a second wall surface 221, a second bottom surface 222, and a third wall surface 223, and the cloth groove 21 and the shim groove 22 are Communicate with each other,
The transverse drainage groove 30 includes a cloth groove 31 and a shim groove 32 formed deeper than the cloth groove 31, and the cloth groove 31 includes a first wall surface 311 and a first bottom surface ( 312), and the shim groove 32 is formed by a second wall surface 321, a second bottom surface 322, and a third wall surface 323, and the cloth groove 31 and the shim groove 32 are Communicate with each other,
The asymmetric groove 200 is formed by a small curved portion 210, a large curved portion 220 having a curvature greater than that of the small curved portion 210, a vertical surface portion 230, and both side portions 240 And
Characterized in that the second bottom surface 222 is positioned to coincide with the deepest portion of the asymmetric groove 200
Uneven structure on the shoulder.













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