JP2001234544A - Slope protective works - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a simplified impression of a slope surface by visually emphasizing one beam group extending from a high location to a low location of the slope surface, out of intersecting beams forming slope protective works. SOLUTION: The slope protective works are formed like a lattice, constituted of a plurality of longitudinal beams 2 extending from the high location to the low location of the slope surface 1, and arranged in parallel with each other, and a plurality of transverse beams 3 extending in a direction that intersects the longitudinal beams 2, and arranged in parallel with each other, and anchored to the slope surface 1 by anchor members 4. Each longitudinal beam 2 is constituted of a plurality of thin beams 2a arranged in parallel with each other so as to be spaced an interval away from each other, and the thin beams 2a are formed of cast-in-place concrete. On the other hand, each transverse beam 2 is formed of a PCa member and arranged so as to be lower in height than the longitudinal beams 2. Further, each anchor member 4 is arranged at a location between the thin beams 2a and corresponding to an intersection between the longitudinal beam 2 and the transverse beam 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope protection method for protecting a slope formed on a side of a cut-through road.

[0002]

2. Description of the Related Art Conventionally, this kind of slope protection work has been carried out by using a horizontal beam formed in a horizontal direction along a slope, and a vertical beam formed in a vertical direction along the slope crossing the horizontal beam at right angles. Some vertical beams and horizontal beams have the same width and height, and have a lattice shape as a whole.

[0003]

However, in the conventional slope protection method, since the height and width of the vertical beam and the horizontal beam are equal, the vertical line and the horizontal line have no strength and the grid is There is a problem that the shape is visually emphasized and gives a complicated impression to the eye. In addition, slope protection works as described above are often formed by placing concrete in place after placing the formwork on the slope, or by spraying concrete, but in the case of cast-in-place concrete, When pouring ready-mixed concrete on the cross beam,
After putting the ready-mixed concrete into the horizontal beam formwork, it took time and effort to level it while moving it horizontally along the formwork. In other words, since the cross beams extend in the horizontal direction, the only way to move the input ready-mixed concrete in the horizontal direction is to perform it manually using tools such as a shovel, which requires much labor. The work efficiency was not good.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned disadvantages of the prior art, and has as its object to visually emphasize one of two intersecting beams extending in a vertical direction of a slope. The purpose of the present invention is to give a clean impression to the slope, and to improve the efficiency of construction work by facilitating the placement of ready-mixed concrete when cast-in-place concrete is used.

[0005]

For this purpose, a slope protection device according to claim 1 comprises a plurality of vertical beams which are arranged in parallel with each other and are oriented in the vertical direction of the slope. A slope protecting means formed in a lattice shape by a plurality of horizontal beams arranged in parallel with each other in a direction intersecting with the vertical beam, and fixed to the slope by a fixing member, The beam is constituted by a plurality of narrow beams arranged in parallel with a gap therebetween, and the horizontal beam is formed lower than the vertical beam by installing a member formed in advance.

[0006] In this slope protection work, it is typically assumed that the cross beam extends horizontally and the vertical beam crosses the cross beam at right angles to the cross beam to form a lattice shape composed of vertical and horizontal beams. The vertical beam, including the form extending vertically along the slope when facing the slope as described above, if one end is above the slope and the other end is below the slope, This also includes a form that is inclined downward or to the left.
Further, the plurality of narrow beams constituting the vertical beam may be connected to each other at the bottom at least in a part of the longitudinal direction.

As the preformed member constituting the cross beam, a precast concrete member or a steel material is used. Shaped steel is preferred as the steel material. When the vertical beam is formed of cast-in-place concrete, after arranging the member for the horizontal beam on the slope and arranging the formwork for the vertical beam, by pouring ready-mixed concrete into the formwork, The vertical and horizontal beams are to be joined. When cast-in-place concrete is not used for the vertical beam, the vertical beam is formed by spraying concrete on the main reinforcement and the wire mesh wound around the main reinforcement.

As the fixing member, various types of commonly used members can be employed as long as the structure can fix the vertical beam to the slope by connecting the anchor buried in the ground and the vertical beam. it can. When the vertical beam is made of cast-in-place concrete, the slope protection work thus formed uses the gravity and the fluidity of the ready-mixed concrete by pouring ready-mixed concrete into the upper part of the formwork. The fresh concrete can be moved down to the bottom. For this reason, a large force is not required for the work of leveling the ready-mixed concrete in the formwork using tools such as a shovel,
In addition, since ready-mixed concrete is not used for the cross beams, the construction work of the slope protection work can be made more efficient.

Further, since the vertical beam is composed of a plurality of narrow beams, a plurality of shadows are formed along the vertical beam to visually emphasize the existence of the vertical beam, while the horizontal beam is formed lower than the vertical beam. Therefore, the visual impression of the cross beam is low. For this reason,
The slope protector gives the appearance a clean impression because the vertical lines are emphasized. In particular, when grasses and woody plants grow on the slope surrounded by vertical beams and horizontal beams, low horizontal beams will be hidden by grass.
Since only the vertical beams are visible, the above-mentioned clean impression is enhanced.

According to a second aspect of the present invention, a fixing member is disposed between the narrow beams at the intersection of the vertical beam and the horizontal beam. According to this, in addition to the above-described operation of the first aspect, since the head of the fixing member is located between the two narrow beams, the fixing member is not conspicuous and does not give a complicated impression to the user. The slope protection work described in claim 3 is the same as the one described in claim 1 in terms of the industrial application field and the problem to be solved. That is, a plurality of girders extending in an oblique direction with one end facing upward and the other end facing downward along the slope, and in a diagonal direction opposite to the girders, intersecting with the girders. A slope protection work formed in a diagonal lattice shape with a plurality of small beams arranged in parallel with each other along the directed slope surface, wherein the small beams are lower than the large beams.

[0011] This slope protection work is typically composed of a large beam and a small beam that are oblique and extend in mutually opposite directions and intersect in an X-shape, and a rhombic frame is formed by both beams. It is assumed as a simple example. Since both the girder and the girder extend in an oblique direction with one end being upward and the lower end being directed downward, at least when the girder is formed of cast-in-place concrete, the same as in the above description of claim 1 In addition, using the gravity and the fluidity of the ready-mixed concrete, the ready-mixed concrete can be moved to the bottom of the formwork to the bottom, making it easier to level the ready-mixed concrete inside the formwork using tools such as shovels. Can be The same applies to the case where cast-in-place concrete is used for the small beams.

[0012] Further, since the combination of the girder and the lower girder is used, a greatly emphasized shading by the girder and a small shading by the girder are formed, so that a regular shading can be formed on the slope. It will give a clean impression to the appearance. Also in this invention, as in the case of claim 1, when grasses and woody plants grow on the slope, small beams having a low height are hidden by grasses, so that only large beams can be seen. The refreshed impression is enhanced.

According to a fourth aspect of the present invention, in the third aspect, the fixing member is disposed at a position above and close to a portion where the large beam and the small beam intersect. As the fixing member, a commonly used fixing member is used as in the first embodiment. In the present invention, since the fixing member is arranged at the position close to the upper side of both beams intersecting in an X shape, the head of the fixing member becomes inconspicuous as a shadow of the both beams, and the clean impression of the slope surface is reduced. Can be kept.

According to a fifth aspect of the present invention, there is provided a slope protection device which cuts through the slope of the third aspect and is formed on a side of a road, and the large beam is provided at a lower end position of the vehicle on the road than at an upper end position thereof. Are arranged diagonally in the forward direction of the traveling direction. The traveling direction is a traveling direction of a vehicle in a nearer lane when the road is a two-way road where an up lane and a down lane are formed.
In addition, the cut-through road is typically formed with a slope on both the left and right sides of the road, but also includes a case where the road has a slope on only one side.

According to the present invention, since the girder which is visually emphasized extends from the upper front to the lower front as viewed from the traveling vehicle, the apparent angle of the girder is changed to the inclination angle of the slope. This gives the illusion that the slope angle of the slope is smaller than the actual slope. Therefore, the feeling of pressure received by the occupant of the vehicle from the side surface is reduced, and the feeling of opening is increased.

[0016]

FIG. 1 is a perspective view showing a first embodiment of the present invention. The slope 1 can be applied to various things such as a cut side surface and a slope of an embankment.
A large number of longitudinal beams 2 are provided on the slope 1 at a predetermined interval, and a large number of horizontal beams 3 are provided at a predetermined interval.

The cross beam 3 is composed of two parallel small beams 3a, and both small beams 3a are made of precast concrete members and are installed on the slope 1 and extend horizontally in any one of the slopes 1. ing. One transverse beam 3 may be formed from three or four small beams 3a, or one transverse beam 3 may be formed by one small beam. The vertical beam 2 is configured by arranging two parallel narrow beams 2a in parallel at a predetermined interval, but one vertical beam 2 is formed by three or four narrow beams 2a. Is also good. The two narrow beams 2a are arranged on the slope 1 perpendicular to the horizontal beams 3, so that in this embodiment, a large number of rectangular frames surrounded by the vertical beams 2 and the horizontal beams 3 are formed.

Each of the narrow beams 2a is made of cast-in-place concrete, and at the intersection with the horizontal beam 3, the vertical beam 2 and the horizontal beam 3 are formed.
Are fixedly joined to each other, and a fixing member 4 is provided at the intersection, thereby fixing the vertical beam 2 and the horizontal beam 3 to the slope 1. The height of the head (anchor cap) of the fixing member 4 is substantially the same as the upper end of the vertical beam 2
It is slightly higher.

A lath net 5 for a thick layer base material is laid on the slope 1, and a formwork for the narrow beam 2 a of the vertical beam 2 is vertically arranged along the slope 1 on the lath net 5 for the thick layer base material. A cross beam 3 made of a precast concrete member or a steel material is arranged. A main bar 6 for the thin beam 2a and a band bar 7 surrounding the main bar 6 are arranged in the form, and ready-mixed concrete is poured into the form.

When the ready-mixed concrete is put into the upper part of the form, the form is continuous in the vertical direction, so that the ready-mixed concrete moves to the lower part in the form using gravity and the fluidity of the ready-mixed concrete. Can be done. For this reason, concrete can be poured without using a tool such as a shovel to level the ready-mixed concrete in the formwork, requiring a large force.

The hardening of the concrete causes the thin beams 2
The generation of “a” and the joining of the “a” with the cross beam 3 can be performed. At the same time, the seat plate 4a of the fixing member 4 forming a part of the vertical beam 2 can be formed simultaneously with the concrete. After the concrete has hardened, the vertical beam 2 and the horizontal beam 3
A covering 8 is applied to the lath net 5 on the slope 1 surrounded by the above, and a plant is planted here if necessary. The earth covering 8
If fertilizer and grass seeds are mixed in, the slope 1
Grass will grow on it. It is needless to say that seedlings may be planted in the cover soil 8 in addition to seeds of herbs and trees.

Since the vertical beam 2 is composed of two narrow beams 2a, a plurality of shadows are formed along the vertical beam 2 to visually enhance the existence of the vertical beam 2 and to form one vertical beam. Since the strength of the beams 2 can be increased, the number of the vertical beams 2 can be correspondingly reduced and the interval between the vertical beams 2 can be increased. On the other hand, since the cross beam 3 is formed lower than the vertical beam 2, the visual impression of the cross beam 3 is low. For this reason, in this embodiment, since the complicated feeling of the slope 1 is reduced and the vertical lines are emphasized, a clear impression is given to the appearance.

In particular, when grass grows on the slope 1 surrounded by the vertical beam 2 and the horizontal beam 3, the low horizontal beam 3 is hidden by the grass, so that only the vertical beam 2 is visible. As a result, the clean impression is further enhanced. In the first embodiment, each narrow beam 2a is formed of cast-in-place concrete. However, each narrow beam 2a can be formed by winding a wire mesh around the main reinforcing bar 7 and spraying concrete from outside. .

FIGS. 2 and 3 show a second embodiment of the present invention. In this embodiment, a girder 12 extending obliquely along the slope 1 and parallel to each other, and a small girder intersecting with the girder 12 and forming an X shape with the girder 12 and having a smaller height and width than the girder 12 13 and 13 form an oblique lattice. The girder 12 extends in an oblique direction with one end facing upward and the other end facing downward, and the small girder 13 intersects the girder 12 and is directed in an oblique direction opposite to the girder 12 on the slope 1. Along with each other. Here, the girder 12
And the small beam 13 are narrow beams 2a forming the vertical beam 2 of the first embodiment.
As in the case of the above, cast-in-place concrete is used, but these may be formed by sprayed concrete having a main reinforcing bar and a wire mesh wound around the main reinforcing bar. Further, the small beam 13 can be made of a precast concrete member or a steel material similarly to the small beam 3a forming the cross beam 3 of the first embodiment.

When the large beam 12 and the small beam 13 are formed by cast-in-place concrete, similarly to the vertical beam 2 of the first embodiment, a formwork is arranged on the upper surface of the lath net 5 laid on the slope 1 and After arranging a main bar and a band bar (not shown) therein, ready-mixed concrete is put into the formwork.
Here, since the formwork of the girder 12 and the girder 13 is long in the vertical direction along the slope 1, the efficiency of the work of placing the ready-mixed concrete is good as in the first embodiment. 1
3 can be formed in a state of being integrally connected.

When the beam 13 is formed of a precast concrete member, the precast concrete member is placed at the position of the beam 13 when forming the formwork of the beam 12, and then the beam 12 is formed. When the ready-mixed concrete is cast, the large beams 12 and the small beams 13 are integrally connected. The same applies to the case where the small beam 13 is formed of cast-in-place concrete. However, the seat plate 4a of the fixing member 4 is simultaneously formed of fresh concrete on the upper slope 1 near the intersection of the large beam 12 and the small beam 13. You can also. This way,
Since the head (cap) of the fixing member 4 is inconspicuous behind the beams 12 and 13, the visual complexity is reduced.

The diamond-shaped portion surrounded by the girder 12 and the girder 13 is covered with earth 8 on the lath net 5, and herbs and trees are generated. The same is true. According to this embodiment, since the combination of the girder 12 and the smaller girder 13 is used, a large shading by the girder 12 and a small shading by the girder 13 are formed, and a regular shading is formed on the slope. Can give a clean impression to the appearance. Further, similarly to the first embodiment, when the grass grows on the slope 1, the small beam 13 having a low height is hidden by the grass, so that only the large beam 12 can be seen. The refreshing impression is enhanced.

Further, in this embodiment, the slope 1
Is formed on the side of the road 14, and the girder 12 is inclined so that its lower end position is forward of the upper end position in the traveling direction of the vehicle on the road 14 (arrow A). As a result, the apparent angle θ2 of the slope 1 seen from the occupant of the vehicle is smaller than the actual inclination angle θ1 of the slope 1. That is, since the girder 12 that is visually emphasized extends from the upper front to the lower front as viewed from the traveling vehicle, the apparent angle θ2 of the girder 12 is illusioned with the inclination angle θ1 of the slope 1, The inclination angle of the slope 1 can be impressed more loosely than the actual slope 1. Therefore, the feeling of pressure received by the occupant of the vehicle from the side surface 1 decreases, and the feeling of opening increases. In particular, when the road 14 is an expressway, since the vehicle runs at a high speed, the visual acuity on the side is increased by the dynamic visual acuity, and the illusion is likely to be remarkable. Therefore, the effect of loosely impressing the inclination angle is large. It is.

Although FIG. 2 shows only the slope 1 near the road 14, the slope 1 is assumed to continue further upward. Therefore, the diamond-shaped frame formed by the large beam 12 and the small beam 13 is Of course, it is further continued upward.

[0030]

As described above, according to the first aspect of the present invention, since the longitudinal beam is composed of a plurality of narrow beams, a plurality of shadows are formed along the longitudinal beam, and the existence of the longitudinal beam is visually recognized. While the horizontal beam is formed lower than the vertical beam,
Since the visual impression of the cross beams will be lower, the slope protection will also give the appearance a cleaner impression because the vertical lines are emphasized. Particularly, when grass grows on the slope surrounded by the vertical beam and the horizontal beam, the low horizontal beam will be hidden by the grass, so that only the vertical beam can be seen and the above refreshing The impression has the effect of being strengthened.

When the vertical beam is made of cast-in-place concrete, the ready-mixed concrete can be moved to the lower part in the formwork by utilizing gravity and the fluidity of the ready-mixed concrete. There is an effect that the construction work of the slope protection work can be made more efficient without requiring a large force for the work of leveling the ready-mixed concrete in the formwork using the tool.

Further, according to the invention of claim 2, according to claim 1
In addition to the above-mentioned effects, since the head of the fixing member is located between the narrow beams, the fixing member is inconspicuous and does not give a complicated impression to the eyes. According to the third aspect of the present invention, since a large beam and a smaller beam are used in combination, a large shadow due to the large beam and a small shadow due to the small beam are formed, and a regular shadow is formed on the slope. Can give a clean impression to the appearance. Furthermore, as in the case of claim 1, when grass grows on the slope, the small beams having a low height are hidden by the grass, so that only the large beams can be seen, and the clean impression is Has the effect of being strengthened.

Further, since both the large beam and the small beam extend in an oblique direction with one end thereof being upward at one end and the lower end thereof being directed downward, a method of pouring ready-mixed concrete at least into the upper part of the formwork of the large beam is required. As in the case of the vertical beams in the item 1, the ready-mixed concrete can be moved to the lower part in the formwork by utilizing gravity and the fluidity of the ready-mixed concrete, so that the construction work can be efficiently performed.

Further, according to the invention of claim 4, according to claim 3,
In addition to the above-described effect, since the fixing member is arranged at the position close to the upper side of both beams crossing in an X shape, the head of the fixing member is inconspicuous as a shadow of both beams, and the There is an effect that the refreshing impression can be sufficiently maintained. According to the fifth aspect of the present invention, in addition to the effect of the third aspect, the girder which is visually emphasized extends from the upper front to the lower front as viewed from the traveling vehicle, so that the girder looks like a girder. Is illusioned with the slope angle of the slope, so that the slope angle of the slope can be impressed more loosely than the actual slope. Therefore, there is an effect that the feeling of pressure received by the occupant of the vehicle from the side surface is reduced and the feeling of opening is increased.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing a second embodiment of the present invention.

FIG. 3 is a front view of a girder and a girder of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slope 2 Vertical beam 2a Narrow beam 3 Horizontal beam 3a Small beam 4 Fixing member 5 Lath net 12 Large beam 13 Small beam 14 Road A Traveling direction

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Norihiko Yamazaki 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Inside Taisei Construction Co., Ltd. (72) Inventor Junichi Soda 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo No. Taisei Corporation F term (reference) 2D044 DA25 DA33 DB22 DC04 DC12

Claims (5)

[Claims] 1. A plurality of vertical beams which are arranged in parallel with each other in the vertical direction of the slope and a plurality of horizontal beams which are arranged in parallel with each other in a direction intersecting with the vertical beams. A slope protection work formed in a lattice shape and fixed to the slope by a fixing member, wherein the vertical beam is constituted by a plurality of thin beams arranged in parallel with a gap therebetween, and the horizontal beam is formed. A slope protection work characterized in that the member is formed lower than the vertical beam by installing a member formed in advance. 2. The slope protection device according to claim 1, wherein a fixing member is disposed between the narrow beams at an intersection of the vertical beams and the horizontal beams. 3. A plurality of girders extending in an oblique direction along the slope with one end pointing upward and the other end pointing downward, and arranged in parallel with each other; A slope protection work formed in a diagonal lattice with a plurality of small beams arranged in parallel with each other along the slope in an oblique direction, wherein the small beams are formed lower than the large beams. Slope protection work characterized by the following. 4. The slope protection work according to claim 3, wherein a fixing member is disposed at a position above and close to a portion where the large beam and the small beam intersect. 5. The vehicle according to claim 5, wherein the slope is cut through and formed on a side of the road, and the girder is disposed obliquely in a direction in which a lower end position thereof is forward of a vehicle traveling direction on the road from an upper end position thereof. The slope protection method according to claim 3, wherein