JPH07331664A - Slope frame coil, and constructing method for slope frame body in grating employing slope frame coil - Google Patents

Abstract

PURPOSE:To improve efficiency in execution of work by a method wherein coils in rectangular section, each formed by winding spirally a single core matereial, are arranged in grating and are covered with mortar sprayed thereto. CONSTITUTION:A coil 1 for slope frame is extended on a net-like body 5 such as a wire netting laid on a side slope 4. A reinforcement 6 is provided at a specified height on the coil 1, and the coils 1 are arranged in grating. After the inside of frames of the grating is protected, being covered with curing sheets, a slope frame body in grating is formed with mortar or concrete 9 sprayed to the coils 1. Spray of mortar to the coils 1 is made in the standard width, exactly the same as the width of the coil. Furthermore, a measuring pin 7 is used so that the thickness of mortar spraying becomes exactly the same as the standard thickness. Thereby, the height of the slope frame body can be lowered within the restriction of specified thickness of covering as the height of the coil is not so high as compared with conventional coils in circular or triangular section. As construction is executed in conformity with the width of the coil, frame bodies corresponding to the standard can be easily constructed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method coil and a method of constructing a lattice method frame body using the method frame coil, for example, on a sloped ground such as a ground, a land reclamation site and a road surface. It is installed on a net-like body such as a lath wire net stretched over the wire and installed in a lattice shape by spreading, and then mortar or concrete is sprayed to form a lattice method frame body, and then the lattice method is applied. The vegetation material consisting of plant seeds and organic soil is sprayed on the net in the frame to form a vegetation base layer to stabilize the slope, or a good quality vegetation base material is sprayed in a thick layer to form the lattice method frame. And a method for constructing a lattice method frame body using the method frame coil for greening the method.

[0002]

2. Description of the Related Art A wire mesh is laid on a slope, reinforcing bars are arranged on the wire mesh to form a grid frame, and then anchor casting is carried out, and then mortar or concrete (hereinafter, There is a simple method greening method called a soil crete method in which a lattice method frame is sprayed to form a lattice method frame body, and a thick layer greening base material is sprayed into the lattice method frame for greening. This method is designed in many ways because it protects the slope with a lattice method frame and can be greened and has excellent workability.

However, when forming the lattice method frame,
Since there is no standard for defining the width, the height, etc., the standards of the lattice method frame are not unified and are likely to fall apart, which causes a problem in quality control.

In addition, since the reinforcing bar is located on the wire mesh and is low, the frame strength of the lattice method frame body is not good, and the formed lattice method frame body is easily cracked because it is an intangible frame. Was also a problem.

Therefore, in recent years, in order to solve these problems, by using a coil simpler than the grid method frame of the wire mesh form as the method frame without using the wire mesh form, spraying with mortar A simple method for greening a method frame for constructing a lattice method frame body has been proposed [Japanese Utility Model Publication No. 3-20351, Japanese Patent Application Laid-Open No. 57-187427].

According to the method of construction using the coil for the legal frame, a mesh-like body such as a wire net is installed on the slope, and the coil for the legal frame having a circular or triangular cross section is installed on the mesh. Coil for installation is installed in a lattice shape, 1 to 3 reinforcing bars are laid on the coil, and then mortar is sprayed from above the coil for the method frame installed in a lattice shape to form a grid method frame body. The above-mentioned soil clear
One of the drawbacks of the construction method is that (1) the strength of the frame is not good because it cannot be laid on the upper part of the method frame that forms the reinforcing bars, and (2) the lattice method frame that is formed because it is unframed tends to crack It can be said to be an excellent construction method because it can solve such drawbacks.

[0007]

However, the above-mentioned soil cleat construction method is a semi-circular arc-shaped frame body having a lower end width of 30 to 35 cm and a height of 10 to 15 cm. , And a mortar to be sprayed to the shape of the coil), the spraying width and spraying height at the lower end are the same, resulting in an unnecessarily large framing body, which is uneconomical. In addition, in the current civil engineering standards, as a quality standard for obtaining a legal frame with a required strength, the thickness of the mortar covering the reinforcing bar is set to 5 cm or more in order to prevent the strength of the legal frame from decreasing due to corrosion of the reinforcing bar. It is mandatory to do this (this is called fog thickness),
In the conventional coil frame body in which reinforcing bars are arranged outside the coil, if the fog thickness is to be 5 cm or more from any surface, it is necessary to increase the width of the frame body, and the coil height is about 10 cm. Since the width is the same,
The spray width could not be specified.

Therefore, in the conventional method using a coil, since the coil having a circular cross section or a triangular shape is used, if the width of the specified lattice method frame is tried to be satisfied, If the height is unnecessarily high and you try to obtain a fog thickness of 5 cm or more in the width direction,
There was no choice but to create a tremendous size legal framework.

That is, in order to form the lattice method frame A using the circular coil, as shown in FIG.
On a net-like body (not shown) such as a lath wire net installed above,
For example, a circular coil 51 having a circular coil cross section
Spread. At the time of this coil expansion, the reinforcing bars 52, 53 are floated at a predetermined height B on the circular coil 51, the coils 51 are installed in a grid shape, and subsequently, the inside of each grid frame (not shown) is cured. After covering with a sheet, mortar 54 is sprayed from above the coil 51 to form the lattice method frame A. At this time, the mortar 54 is formed along the circular shape of the coil 51 until a prescribed spray thickness h (for example, 5 cm ... Fog thickness) is achieved.
The reinforcing bars 52 and 53 can be positioned in the mortar layer so as to satisfy the specified spraying thickness h from the upper end and the ground portion in the height direction, but on the other hand, the coil width D If the mortar is sprayed as it is, the spray thickness h cannot be taken in the width direction indicated by T, and the spray width E at the lower end is not specified. It was not possible to obtain the standard width F of the body A.

This is because the height of a coil similar to the circular coil 51 is unnecessarily high, and a triangular coil 55 (see FIG. 8) having a triangular coil cross section and a coil width H is used to form a lattice method frame A. Even when the mortar 54 is formed, although it is possible to obtain the blast thickness h in the height direction (C direction) when trying to maintain the prescribed blast thickness h, on the other hand, the mortar 54 is blasted according to the coil width H. The spray thickness h cannot be set in the width direction (T direction), and the spray width E at the lower end
For, there is nothing to specify, so the spray width E
Could not be set to the standard width F of the lattice method frame A.

The present invention has been made in view of the above problems, and an object thereof is to simultaneously obtain a spray thickness (fog thickness) and a spray width of mortar according to the standard without using a wire mesh form. It is possible to provide a coil for a legal frame and a method for constructing a lattice method frame body using the coil for a legal frame.

[0012]

In order to achieve the above object, the coil for a legal frame of the present invention is installed in a lattice shape by being spread on a mesh body stretched on the slope, and the mortar or A method frame coil in which concrete is sprayed to form a lattice method frame body, which is formed by a coil formed by winding one core material spirally to form a core material portion having a rectangular cross section. Is characterized by.

In addition, from another point of view, the present invention extends a coil for a method frame, in which a single core material is spirally wound on a slope to form a core material portion having a rectangular cross section. Installation of a lattice method frame body using a coil for a legal frame, which is installed in a lattice form by extending, and sprays mortar or concrete from above the coil for the legal frame to form a lattice method frame body. Provide a way.

[0014]

As the coil for the method frame, a coil formed by spirally winding one core material to form a core material portion having a rectangular cross section is used.
The height of the coil does not become unnecessarily high as compared with the conventional coil having a circular or triangular cross section. Therefore, in the present invention, when the coil is spread, the reinforcing bar is floated at a predetermined height position on the method frame coil,
Even if the mortar is sprayed from above the coil for the legal frame in the width of the coil, the height does not become unnecessarily high.By spraying the mortar along the circular shape or the triangular shape, the mortar layer protrudes. It is possible to avoid the conventional problem of being overwhelmed, and to form a legal frame as planned.

After that, by using, for example, a measuring pin so that the mortar has a spray thickness (fog thickness) according to the standard, simply by spraying mortar or the like according to this measuring pin, the reinforcing bar is raised. In the direction, it can be positioned in the frame of mortar or the like so as to satisfy the specified spray thickness from both the upper end and the ground portion.

In short, in the current civil engineering standards, the thickness of the mortar covering the reinforcing bar is defined as a quality standard for obtaining the legal frame pair of the required strength, in order to prevent the strength of the legal frame body from being deteriorated due to the corrosion of the reinforcing bar. It is mandatory to have a thickness of 5 cm or more (fog thickness), and in a conventional frame body with a circular or triangular coil in which reinforcing bars are arranged outside the coil,
If the fog thickness is to be 5 cm or more from any surface, it is necessary to increase the width of the legal frame, and the height is 10c.
The present invention can avoid the conventional defect that the spray width at the lower end cannot be defined with a coil of about m.

[0017]

EXAMPLES Examples of the present invention will be described below. However, the present invention is not limited thereby.
1 to 5 show an embodiment of the present invention. 1 to 5, in a coil 1 for a method frame, a core material portion 3 in which an iron wire (core material) 2 is spirally wound and a cross section has a rectangular shape U (see FIG. 4).
Is formed of a coil.

In order to form the lattice method frame A by using the rectangular frame coil 1 for the method frame, first, referring to FIGS.
As shown in FIG. 5 and FIG. 5, the coil 1 for the legal frame is spread on the mesh body 5 such as a wire mesh installed on the slope 4. When the coil is spread, the reinforcing bar 6 is placed at a predetermined height B
(For example, 5 cm) is floated at a position (see FIG. 2), and the method frame coil 1 is installed in a grid pattern (see FIG. 5).
Curing sheet 8 in each lattice frame a, b, c, d (see FIG. 5)
After covering with, the mortar or concrete (hereinafter, simply referred to as mortar) 9 is sprayed from above the method frame coil 1 to form the lattice method frame A.

At this time, first, a mortar 9 or the like having a coil width D is sprayed from above the method frame coil 1 in the width direction (T direction).
At, a spraying width (for example, 30 cm) E conforming to the standard is obtained. That is, the spray width E and the standard width F of the lattice method frame A can be made substantially equal.

After that, by using, for example, the inspection pin 7 so that the spray thickness (fog thickness) h of the mortar or the like conforms to the standard, it is only necessary to spray the mortar 9 in accordance with the inspection pin 7. In the height direction (C direction), the reinforcing bar 6 can be positioned within the frame of mortar or the like so as to satisfy the specified spraying thickness h from both the upper end and the ground portion.

As described above, in this embodiment, after the spraying width E and the standard width F of the lattice method frame A are substantially matched, the lattice method frame A is obtained.
Since the height of the grid is controlled by the measuring pin 7, the height of the lattice method frame A can be set as specified.

Therefore, if the mortar or the like 9 is sprayed according to the coil width D, the grid has a spray thickness h of the mortar according to the standard in the C direction and a spray width E according to the standard in the T direction. The legal frame A can be formed.

The reference numeral 10 in FIGS. 1 and 2 is an anchor for temporarily fixing the stretched coil 1 for the normal frame to some of the core members 3 so that the core members 3 have a predetermined interval. −
Is.

Further, in the completed lattice method frame A, as shown in FIG. 5, for example, the mesh 5 in the lattice method frame A is sprayed with vegetation material such as plant seeds or organic soil. A vegetation base layer is attached to stabilize the slope, and good quality vegetation base material 1
1 can be sprayed in a thick layer to make the inside of the lattice method frame A green.

As described above, in this embodiment, the coil 1 for the legal frame is used.
As one core material is spirally wound and the section is rectangular U
Since the coil formed by forming the core material portion 3 having the above is used, the coil 1 for the method frame has a coil shape larger than that of the conventional coil having a circular or triangular cross section. The height will not be higher than necessary. Therefore, when trying to satisfy the width of the lattice method frame body specified in the circular shape or triangular shape coil, the height of the coil becomes unnecessarily high, and if the fog thickness of 5 cm or more is taken in the width direction, In this embodiment, the problem that the lattice method frame body of a tremendous size had to be obtained can be overcome.

That is, in this embodiment, when the coil is spread, the reinforcing bar 6 is placed at a predetermined height B on the coil 1 for forming the frame.
First, the coil width D
A through mortar or the like 9 is sprayed to obtain a spray width E conforming to the standard at the lower end. That is, the spray width E and the standard width F of the lattice method frame A can be substantially matched.

After that, for example, the inspection pin 7 is C so that the spray thickness (fog thickness) h of the mortar or the like conforms to the standard.
By using it to control the direction, by only spraying mortar or the like 9 in accordance with this inspection pin, the reinforcing bar 6 can be filled with mortar 9 or the like in the C direction so as to satisfy the specified spraying thickness h from the upper end and the ground portion. Can be located within the frame of.

In this embodiment, the reinforcing bars 6 are arranged in a line when the reinforcing bars 6 are floated at a predetermined height B (see FIG. 2) on the method frame coil 1. However, two rows of reinforcing bars may be floated symmetrically, or three or more rows of reinforcing bars may be arranged, and the reinforcing bars can be arranged appropriately.

[0029]

As described above, in the present invention, a coil formed by spirally winding a single core material to form a core material portion having a rectangular cross section is used as the coil for the method frame. Therefore, the coil for this frame does not have an unnecessarily high coil height as compared with the conventional coil having a circular or triangular cross section. Therefore, in the circular and triangular coils, when the width of the prescribed grid method frame is attempted to be satisfied, the height of the coil becomes unnecessarily high, and a fog thickness of 5 cm or more is taken in the width direction. However, the present invention can overcome the problem that the grid method frame body has to be incredibly large.

That is, in the present invention, when the coil is spread, the reinforcing bar is floated at a predetermined height above the method frame coil, and first, mortar or the like is sprayed from above the method frame coil through the coil width and the lower end. At, the spray width according to the standard is obtained. That is, the spray width and the standard width of the lattice method frame can be made to substantially match.

After that, by using, for example, a measuring pin so that the mortar or the like has a spray thickness (fog thickness) according to the standard, simply by spraying mortar or the like on the measuring pin, It can be positioned in a frame such as mortar so that the specified spray thickness is satisfied from both the upper end and the above-ground portion in the height direction.

As described above, according to the present invention, if the mortar or the like is sprayed along the width of the coil, the spray thickness (fog thickness) of the mortar or the like conforms to the standard in the height direction, and the spray thickness conforms to the standard in the width direction. A lattice method frame body having a width can be formed.

In short, according to the current civil engineering standards, as a quality standard for obtaining a legal framework with a required strength, the thickness of mortar etc. covering the reinforcing bar is used as a quality standard in order to prevent the strength of the legal frame from decreasing due to corrosion of the reinforcing bar. Is required to be 5 cm or more (fog thickness), and in the case of a conventional coil frame body in which a reinforcing bar is arranged on the outside of the coil, if the fog thickness is to be 5 cm or more from any surface, the legal frame is inevitable. The present invention can avoid the conventional drawback that the width of the body needs to be large, and that the width of the lower end cannot be regulated with a coil having a height of about 10 cm.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part for explaining an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a main part configuration in the embodiment.

FIG. 3 is an explanatory diagram of a main part configuration showing a method frame coil used in the above-described embodiment.

FIG. 4 is a diagram showing a core material portion of a method frame coil used in the above embodiment.

FIG. 5 is a configuration diagram for explaining a work process of a construction method in the above embodiment.

FIG. 6 is an explanatory diagram of a main part configuration showing a conventional example.

FIG. 7 is an explanatory diagram of a main part configuration showing another conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Coil for method frame, 2 ... One iron wire (core material), 3 ... Core material part, 4 ... Slope, 5 ... Reticulate body such as wire mesh, 6 ... Reinforcing bar, 7
... Inspection pin, 8 ... Curing sheet, 9 ... Mortar or concrete, 10 ... Anchor pin, 11 ... Vegetation base material, U ... Rectangular shape, A ... Lattice method frame.

Claims (2)

[Claims] 1. A coil for a method frame, which is installed in a lattice shape by spreading on a slope and sprays mortar or concrete to form a lattice method frame body. In a coil for a method frame, one core material is spirally formed. A coil for a legal frame, comprising a coil formed by winding a core into a core material portion having a rectangular cross section. 2. A coil for a method frame, which is formed by spirally winding a single core material on a slope to form a core material portion having a rectangular cross section, is installed in a lattice shape by spreading. A method for forming a lattice method frame comprising spraying mortar or concrete onto the method frame coil to form a lattice method frame, and a method for constructing a lattice method frame body using the method frame coil.