JP2747665B2 - Method of forming legal frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a legal frame to be constructed in civil engineering work.

[0002]

2. Description of the Related Art Slope protection work is performed as embankment work on embankment surfaces such as embankments and slopes of cutting hills.
For this purpose, labor such as a frame using a large number of reinforcing bars, concrete placement and anchoring to the framework is performed exclusively on site.

[0003]

The above-mentioned framework work is complicated and troublesome. In addition, the transport of the reinforcing steel to the site is a heavy labor, and the lifting and handling of the reinforcing steel on a steep slope is extremely dangerous. The present invention proposes a method for forming a legal frame that is not only inferior in strength but also superior in strength compared to conventional structural products, while the above-mentioned legal frame forming operation is a simple operation. It is.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a normal frame position to be constructed at a vertical and horizontal interval of about 1 m to 4 m is determined on a slope, and a width interval of about 10 cm to 80 cm is set at the index position. A mortar is poured in, and the surface is iron-finished flat, and after drying, an adhesive is applied to the surface. Thereafter, one or more carbon fiber sheets are appropriately applied to the surface using an adhesive. After applying an adhesive again to the upper surface of the sheet, the protective mortar is sprayed in a ridge shape projecting to a certain height, and a length of about 50c is applied at the intersection of each ridge.
It is characterized in that a normal frame is formed by driving an anchor of m to 15 m. At this time, the thickness of the smoothing mortar is about 8c
m, and the carbon fiber sheet attached to the upper surface is positioned within the width dimension, that is, 1 cm to 3 cm inward from both edges.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of an inclined slope during execution according to the method of the present invention, FIG. 2 is an enlarged partial plan view of a portion indicated by a temporary line p in FIG. 1, and FIG. It is a side view. Reference numeral 1 denotes a cut mountain slope, which is firstly indexed to be constructed at a vertical (x) / horizontal (y) interval of approximately 1 m to 4 m of the slope 1, Find out b, c, d ...

[0006] However, approximately 1 is set between the index positions of each legal frame.
The mortar 2 is cast at a width interval s of 0 cm to 80 cm, the surface is iron-finished flat, and after drying, the adhesive 3 is applied to the surface.

Reference numeral 4 denotes a carbon fiber sheet affixed to the surface of the adhesive 3, and the carbon fiber sheet 4 is located within the width interval s of the leveling mortar 2 being cast, that is, equal to or normally equal to the width interval. Attachment is made so that both edges are located approximately ΔS (1 cm to 3 cm) inward from the edge. It is to be noted that even if the carbon fiber sheet 4 is used, even one sheet of the carbon fiber sheet 4 can obtain the strength as described below in comparison with the conventional use of a reinforcing bar, and furthermore, one sheet of the adhesive The layers are appropriately overlapped with each other, thereby doubling the strength.

According to the present invention, the protective mortar 5 is formed by spraying the protective mortar 5 on the upper surface on which the carbon fiber sheet is stuck as described above, and then spraying the protective mortar 5 in a protruding ridge shape. An anchor 6 having a length of about 50 cm to 15 m is driven deep into the soil at the intersection of the vertical and horizontal ridges formed in the shape.

The legal frame of the present invention is constructed as described above, and has a thickness of 5 cm or more within the frame as in the conventional practice.
The mortar spraying 7 of about 20 cm is performed or the vegetation 8 is applied, and the construction is completed.

The following table shows the strength comparison between the method using the carbon fiber sheet according to the present invention implemented as described above and the conventional method using a reinforcing bar. Experimental results were obtained.

[0011]

[Table 1]

[0012]

As described above, since the present invention does not use a large number of rebars to form a framework, as described above, a large number of rebars and heavy labor such as lifting at the site and troublesome work of the framework are required. Can be omitted, and there is no danger due to these. Therefore, the construction period can be shortened by about 30% to 40% as compared with the conventional construction method, which contributes to labor saving and cost reduction. On the other hand, the weight of the frame structure on the ground is reduced to about 1/3 to 1/4 as compared with the conventional one, thereby minimizing damage to the ground and having a favorable effect on protection enhancement. .

[Brief description of the drawings]

FIG. 1 is an explanatory view of an inclined slope being executed by the method of the present invention.

FIG. 2 is an enlarged partial plan view of a portion indicated by a provisional line p in FIG.

FIG. 3 is a vertical sectional side view of FIG. 2;

[Explanation of symbols]

 Reference Signs List 1 slope slope 2 leveling mortar 3 adhesive 4 carbon fiber sheet 5 protective mortar 6 anchor

Claims (2)

(57) [Claims] 1. A position of a normal frame to be constructed at a vertical and horizontal interval of about 1 m to 4 m on a slope, and a mortar is cast at a width interval of about 10 cm to 80 cm at the index position. Applying an adhesive to the surface after performing a trowel finish on the surface and drying the surface, and thereafter, attaching one or more carbon fiber sheets to the surface using an appropriate adhesive, and further applying an adhesive to the surface. After applying the adhesive again, spray the protective mortar in a ridge shape projecting to a certain height,
A method of forming a legal frame, wherein an anchor having a length of about 50 cm to 15 m is driven into an intersection of each ridge. 2. The flattening mortar has a thickness of about 8 cm, and a carbon fiber sheet is adhered to an upper surface of the mortar so as to have a width equal to or slightly smaller than its width. Method of forming a legal frame.