JP2745103B2 - Slope protection frame and method of construction - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective frame for protecting an inclined ground surface and preventing its collapse, and a method of installing the same.

[0002]

2. Description of the Related Art In order to prevent collapse of a sloping ground surface, a protective frame is formed in a grid pattern on the ground surface using concrete or the like, and the soil is supported in each legal frame of the protective frame. 2. Description of the Related Art A vegetation process has been applied to the soil in a legal framework to green an inclined ground surface.

FIGS. 6 and 7 show a conventional protective frame formed on an inclined ground surface during such greening work. The protection frame 10 is configured to prevent collapse of the ground surface by vertical beams 11 and horizontal beams 12 formed in a grid pattern at a predetermined height on the ground surface G. For each beam, aggregate composed of reinforcing bars etc. is assembled in a grid pattern along the ground surface in advance, and frame materials set up in the normal direction of the inclined surface are fixed in parallel so as to sandwich the aggregate. Mortar and concrete are cast between the frame members and on the outer surface of each frame member to form a substantially rectangular cross section.

[0004] In each legal frame surrounded by the vertical beam and the horizontal beam thus formed, a soil is put, and vegetation processing is performed on the soil.

[0005]

However, in the conventional protective frame as described above, rainwater W accumulates at the lower part of each legal frame as shown in FIG. There was a problem that the soil was constantly over-humidified and the growth of plants was impaired. Also, there is a problem that the rainwater W flows into the lower portion of the cross beam as shown in FIG. 7B and erodes the soil at the lower portion of the cross beam, whereby the lower portion of the cross beam is hollowed out, and the protection effect on the inclined surface is significantly reduced. there were.

In order to solve this problem, there has been a method of providing a drainage hole penetrating along the inclined surface in the cross beam portion of the legal frame. However, in this method, the strength of the cross beam portion is reduced, and a hole is formed. Clogging was likely to occur, and a long-term drainage effect could not be expected, and the appearance was not favorable.

SUMMARY OF THE INVENTION It is an object of the present invention to solve this problem and to provide a protection frame for an inclined surface which can be expected to have a long-term stable drainage effect without a decrease in strength and a method for constructing the same.

[0008]

In order to solve the above-mentioned problems, a protection frame for an inclined surface according to the present invention comprises a plurality of vertical beams and horizontal beams formed at a predetermined height in a grid pattern on the inclined surface. In the protection frame of the inclined surface for preventing the collapse of the inclined surface, the upper side wall surface of each of the cross beams is formed substantially horizontal, and the horizontal upper side wall surface is provided with irregularities .

Further, according to the method for constructing a protective frame of the present invention, an aggregate is fixed in a grid pattern along an inclined surface, and a frame is supported on both sides of the aggregate. Mortar, concrete is cast on the outer surface of the protective frame construction method of forming a plurality of vertical beams and horizontal beams on the inclined surface, the upper frame material for forming each of the horizontal beams is fixed substantially horizontally, Mortar and concrete are poured along the surface of the upper frame material to form the upper side wall surface of the cross beam substantially horizontal, and to form irregularities on the horizontal upper side wall surface.

[0010]

According to the present invention, in the present invention, the rainwater that has infiltrated into the horizontal frame flows down along the substantially horizontal upper side wall surface of the lower horizontal beam, and the upper side wall surface of the horizontal beam of each vertical frame is removed. because it is substantially horizontally formed, drainage property becomes extremely high, strength is not necessary to provide a drain hole to be lowered, the protective effect of the inclined surface becomes much higher, also sliding of soil dressing because of the uneven Also prevent.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show a state in which a protective frame according to the present invention is installed on an inclined ground surface G.

The protective frame 20 is composed of vertical beams 21 and horizontal beams 22 formed in a grid pattern at a predetermined height from the inclined ground surface G. Each vertical beam 21 of the protection frame 20 is formed such that the upper surface 21a is substantially parallel to the ground surface G, and the side walls 21b, 21b on both sides are substantially parallel to the normal to the ground surface G.

On the other hand, each cross beam 22 of the protection frame 20
The upper surface 22a is substantially parallel to the ground surface G, and is on the lower side (valley side).
Is formed so that the side wall 22b is substantially parallel to the normal of the ground surface, and the upper side (mountain side) side wall 22c is substantially horizontal.

Therefore, as shown in FIG. 2, when rainwater W enters into each of the squares formed by the vertical beams and the horizontal beams in a substantially square shape, a part of the rainwater penetrates from the ground surface G into the ground. Then, the remaining rainwater flows on the substantially horizontal upper side wall 22c of the cross beam 22 at the lower part of the normal frame, and enters the lower legal frame.
As described above, since no excess water is accumulated in each legal frame of the protection frame 20, even when the soil is put into the legal frame, the lower portion thereof does not become over-humidified, and Inside can be a good vegetation base.

The rainwater W is supplied to the substantially horizontal upper side wall 22.
c, a small amount of intrusion into the lower part of the cross beam is small, and the lower surface of the cross beam 22 is in contact with the ground surface with a wide surface. No collapse occurs.

The upper side wall surface of the cross beam of the frame is formed horizontally and flatly, and a horizontal cross beam 32 shown in FIGS. 5A and 5B is used to prevent slippage of the soil and the like. , provided concave convex at a slight height in its upper side wall 32c. Even in this case, extremely good drainage can be obtained by forming the side wall surface substantially horizontally as a whole.

Next, a method of installing the protection frame 20 will be described. FIG. 3 is a view showing the inside of the vertical beam 21 and FIG.
Shows the inside of the cross beam 22, and a method of installing the protection frame 20 will be described below with reference to these drawings.

In the construction of the vertical beam 21 portion, first, the auxiliary anchor 23 is driven into the ground surface G along the grid, and as shown in FIG. Wire mesh frame material 2 of the same height supported and supported
5 is installed along the height direction so as to sandwich the auxiliary anchor 23. Then, two upper and lower reinforcing bars 26 serving as aggregates of the vertical beams are fixed so as to intersect with the shaft member 24, and further, the auxiliary anchor 23 and the reinforcing bars 26 are fixed between the frame members 25 and the outer surface thereof. Concrete and mortar
The cross section is formed to be substantially rectangular. The fixing between the reinforcing bar and the shaft member and the fixing between the auxiliary anchor and the reinforcing bar are performed by bending the members themselves or tying them with wires or the like.

As shown in FIG. 4, the cross beam 22 is formed by an upper shaft member 24 and a lower shaft member 24 'which is longer than the shaft member 24 so that the frame member 25 on the valley side is parallel to the normal line of the ground surface G. , The ridge-side frame member 25 ′ formed wider than the valley-side frame member 25.
Is supported so that it is almost horizontal in the installed state. Then, two upper and lower rebars 26 serving as aggregates of the cross beams are fixed so as to intersect the shaft members 24 and 24 ′.
3 and the reinforcing bar 26, concrete and mortar are cast between the frame members 25 and 25 'and on the outer surface thereof, and the lower side wall surface 22b of the cross beam 22 is substantially parallel to the normal line of the ground surface G. in, so unevenness of the upper side wall 22c substantially horizontally in且 single FIGS. 5 (a) or FIG. 5 (b) as shown in a small height is configured, with respect to the ground surface section It is formed so as to be substantially trapezoidal. A main anchor (not shown) is driven into the intersection of the vertical beam 21 and the horizontal beam 22 before placing concrete or mortar.

By using such a construction method, it is not necessary to provide a drain hole having a reduced strength, and as described above, it is possible to form a protective frame which has extremely high drainage performance against rainwater and is free from collapse. Further, since the upper side wall surface of the cross beam is formed along the frame member 25 'fixed in advance horizontally, the construction surface can be made uniform, and the drainage of each legal frame can be made uniform, and the appearance can be improved. Is also preferable.

Further, in the above embodiment, the present invention is applied to the vegetation protection frame for growing plants on the soil put in each law frame, but the ground surface in the law frame is covered with concrete or the like. The present invention can be similarly applied to the above-described protection frame.

The structure of the aggregate of the beam and the method of supporting and fixing the frame are not limited to this embodiment, and various modifications are possible.

[0023]

As described above, in the present invention, since the upper side wall surface of the cross beam of each frame is formed substantially horizontal, drainage holes which extremely increase drainage and decrease strength are provided. This eliminates the necessity, so that the protection effect of the inclined surface is remarkably enhanced, and the unevenness provided on the horizontal upper side wall surface can prevent slippage of the soil.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a sectional view of one embodiment.

FIG. 3 is a diagram showing an internal structure of a longitudinal beam according to one embodiment.

FIG. 4 is a diagram showing the internal structure of a cross beam according to one embodiment.

FIG. 5 is a sectional view showing an embodiment of the present invention.

FIG. 6 is a perspective view showing a conventional protection frame.

FIG. 7 is a sectional view of a conventional protection frame.

[Explanation of symbols]

 Reference Signs List 20 protection frame 21 vertical beam 22 horizontal beam 22a upper side wall surface 23 auxiliary anchor 24, 24 'shaft member 25, 25' frame member 26 reinforcing bar G ground surface

Claims (2)

(57) [Claims] 1. A protection frame for an inclined surface for preventing collapse of the inclined surface by a plurality of vertical beams and horizontal beams formed on the inclined surface in a grid pattern at a predetermined height, wherein an upper side wall surface of each of the horizontal beams is provided. A protection frame having an inclined surface, wherein the protection frame is formed to be substantially horizontal, and the horizontal upper side wall surface is provided with irregularities . 2. An aggregate is fixed in a grid pattern along an inclined surface, a frame material is supported on both sides of the aggregate, and mortar and concrete are cast between the frame materials and on the outer surface of the frame material. In the method of constructing a protective frame for forming a plurality of vertical beams and horizontal beams on the inclined surface, an upper frame material for forming each of the horizontal beams is fixed substantially horizontally, and a mortar is formed along the surface of the upper frame material. A method of constructing a protective frame, comprising: casting concrete to form an upper side wall surface of the cross beam substantially horizontal, and forming irregularities on the horizontal upper side wall surface.