JPH07158076A - Construction method for grating type slope form body using slope form coil - Google Patents

Abstract

PURPOSE:To easily carry out a work for constructing a slope form adhering to slope surface by using a slope form coil allowing easy bar arrangement via the standardization of an arrangement position for reinforcements. CONSTITUTION:A single steel wire 2 is spirally wound and formed into a coil having approximately square cross section, thereby forming a slope form coil 1 having recessed bend sections 4 and 5 at right and left symmetrical positions on both upper ends. Then, a net body 7 is laid on slope surface and a pair of reinforcements 8 and 9 are laid thereon. Also, the coil 1 is extended along the reinforcements 8 and 9. Furthermore, when the coil 1 is extended, reinforcements 11 and 12 are placed on the bend sections 4 and 5, and the coil 1 is laid in the form of a grating. Thereafter, the coil 1 is covered with a curing sheet, and mortar or the like is jetted to the upper surface of the coil 1 to form a grating type slope form body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a lattice method frame body using a method frame coil, and more specifically, it is stretched on a sloped ground such as a ground or a land surface and a slope such as a road. A coil for a legal frame is installed on a mesh body such as a wire mesh, and the coil for a legal frame is spread to spread a mortar or concrete from the coil for the legal frame installed on the grid to form a grid method. After forming a frame body, for example, a vegetation material consisting of plant seeds or organic soil is sprayed on the mesh in the lattice method frame to form a vegetation base layer to stabilize the slope or to improve the quality of vegetation. The present invention relates to a method for constructing a lattice method frame body using a method frame coil in which a thick layer of a base material is sprayed to green the inside of the lattice method frame body.

[0002]

2. Description of the Related Art A wire mesh is laid on a slope, reinforcing bars are arranged in a grid on the slope to form a grid frame, and then anchoring is performed, and mortar or concrete (hereinafter referred to as mortar is abbreviated). There is a simple method greening method called a soil cleat method in which a grid method frame is sprayed to form a grid method frame, and a thick layer greening base material is sprayed in the grid 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 a lattice method frame, there is no standard for defining the width, height, etc., so that the standards of the lattice method frame are not unified and are likely to fall apart, which is a problem in quality control. was there.

Further, since the reinforcing bar is located on the wire mesh at a low position, the frame strength of the lattice method frame is not good, and the formed lattice method frame is apt to be cracked due to the non-form frame. It was a problem.

Therefore, in recent years, in order to solve these problems, a simple method of constructing a lattice method frame body by mortar spraying using a coil simpler than the above-mentioned wire mesh type lattice method frame as a method frame. A frame greening method has been proposed [Japanese Utility Model Publication No. 3-20351, Japanese Patent Application Laid-Open No. 3-100230].

In the construction method using the coil for the legal frame, a mesh-like body such as a wire mesh is installed on the slope, and a coil for the legal frame having a circular, rectangular, or triangular cross section is installed on the mesh. , Spread the coil for the method frame and install it in a lattice shape, and after arranging 1 to 3 reinforcing bars on it, blow mortar or concrete from the coil for the method frame installed in the lattice shape. It is something that is attached to form a lattice method frame body, which is a drawback of the soil cleat construction method described above.
(1) The standard of the lattice method frame cannot be determined, (2) The strength of the frame is not good because the reinforcing bar cannot be arranged on the upper part, (3)
Since it is a moldless frame, it can be said to be an excellent method because it can solve the drawback that cracks easily form in the formed lattice method frame.

[0007]

However, even in the construction method using this coil for the legal frame (hereinafter, referred to as coil), in the former publication, when the reinforcing bar is arranged, the coil is covered with wire while lifting the reinforcing bar. On the other hand, in the latter publication, the reinforcing bar is placed in the center of the frame by bundling and simply tying the reinforcing bar to the coil with wire etc. However, since the positions of the reinforcing bars cannot be accurately determined and the positions of the reinforcing bars cannot be accurately determined, the positioning of the reinforcing bars is unstable and there is a problem in quality control. Also, the work of arranging was not easy.

The present invention has been made in view of the above problems, and an object thereof is a lattice method frame body using a method frame coil which can standardize the reinforcing bar position and facilitate the reinforcing bar work. To provide a construction method of.

[0009]

In order to achieve the above object, a method for constructing a lattice method frame body using a coil for a legal frame according to the present invention is a method for extending a coil for a legal frame on a slope to form a lattice. In a rectangular shape, and when mortar or concrete is sprayed onto the method frame coil to form a lattice method frame, a concave bent portion is formed in the method frame coil before installation on the slope. Then, the reinforcing bar is arranged by placing the reinforcing bar on the bent portion when the coil for the normal frame is expanded.

In addition, from another point of view, the present invention forms a concave bent portion in a coil for a frame in advance before installation on the slope, and subsequently, a mesh-like structure such as a wire mesh on the slope. Put up the body,
Further, the coil for the frame of law is spread on the slope, and at the time of the coil spreading, the reinforcing bar is placed on the bent portion and the reinforcing bar is arranged to rebar. Provided is a method for constructing a lattice method frame body using a method frame coil, which comprises spraying mortar or concrete from above to form a lattice method frame body.

As the coil for the legal frame in the present invention, when there are two reinforcing bar positions, when a so-called two reinforcing bar is arranged, as shown in FIG. 3, for example, a quadrangular core material is used. In the quadrangular coil 1 including the portion 3, it is preferable to provide concave bent portions 4 and 5 at two positions on the upper and lower sides of the coil at symmetrical positions. Further, when the reinforcing bar reinforcement positions are four positions, so-called four reinforcing bar reinforcements are used. When applying, as shown in FIG. 8, for example, in the case of a rectangular coil, two concave bent portions 34, 35, 36, 37 are provided at upper and lower portions of the core material portion 33 at left and right symmetrical positions, respectively. preferable.

Further, as a modified example of the circular coil, as shown in FIG. 9, concave bent portions 39, 40 and 41 are provided at one position at the uppermost position of the coil, and are respectively provided at right and left symmetrical positions above the core material portion 38. Is preferred.

In the present invention, in order to install the coil for the method frame having the concave bent portion on the slope, first, as shown in FIG. 4, a net-like body 7 such as a wire mesh installed on the slope 6 is provided. To
For example, along the pair of reinforcing bars 8 and 9 in which grid-like reinforcing bars are arranged, the coil 1 for the method frame is spread thereon. At this time, the pair of reinforcing bars 8 and 9 are already fixed to the slope 6 via the mesh 7 by the main anchor 10 (see FIG. 2). Then, as shown in FIG.
Prior to placing 1 and 12 on the bent portions 4 and 5, the expanded coil 1 is temporarily fixed by auxiliary anchors 13 so that each core material portion 3 has a predetermined interval (see FIG. 2). ,
The reinforcing bars 11 and 12 are placed on the bent portions 4 and 5 (see FIG. 6). In this way, the grid 1 for the frame 1
Is installed, and after covering each lattice frame 15a with a curing sheet 17, mortar or concrete 14 is sprayed from above the method frame coil 1 to form the lattice method frame body 15 (see FIG. 7).

[0014]

[Operation] A concave bent portion that is large enough to hold the rebar when it is placed is formed in the coil for the legal frame before installation on the slope, and the rebar is placed on the bent portion when the coil is spread. Since it is placed, it is possible to accurately determine the bar arrangement position of the reinforcing bar and standardize it, and even if the coil for the legal frame is spread on the slope, just as in the conventional way, simply install the reinforcing bar on the coil with wire etc. As compared to the labor-intensive method of bundling with or using a separate reinforcing bar holder to position it in the center of the coil, it is possible to arrange the reinforcing bar while holding it in the bent part, so the reinforcing work is easy. In addition, the positioning of the reinforcing bar can be stabilized. Moreover, since the coil for the slope frame easily conforms to the unevenness of the slope surface, by bending the reinforcing bar according to the change of the slope surface, it can be adhered closely to the slope ground such as the ground and land slopes and road slopes. You can build a legal framework.

[0015]

EXAMPLES Examples of the present invention will be described below. However, the present invention is not limited thereby.
1 to 3, a rectangular coil (coil for a legal frame) 1
Is formed by winding one iron wire (core material) 2 in a spiral shape to form a core material portion 3 having a substantially quadrangular cross section.
5 is formed in a concave shape by processing the iron wire 2 at the reinforcing bar arrangement position above the core material portion 3.

Further, in order to apply two reinforcing bars, for example, as shown in FIG. 3, bent portions 4 and 5 are provided at two positions on the upper and lower portions of the core material portion 3 at symmetrical positions.

In order to install the rectangular coil 1 having the concave bent portions 4 and 5 on the slope 6, first, as shown in FIG. 4, a net-like body such as a wire mesh installed on the slope 6 is provided. 7
, For example, a pair of reinforcing bars 8 and 9 arranged in a grid pattern.
A rectangular coil 1 is spread along it. At this time, the pair of reinforcing bars 8 and 9 are already fixed to the slope 6 by the main anchor 10 via the mesh 7. Then, as shown in FIG. 5, before the reinforcing bars 11 and 12 are placed on the bent portions 4 and 5 during the coil expansion, the expanded coil 1 is separated by the auxiliary anchors 13 so that the core portions 3 are spaced at predetermined intervals. After that, the reinforcing bars 11 and 12 are placed on the bent portions 4 and 5 (see FIG. 6). In this way, the law frame coils 1 are installed in a lattice shape, and after covering the inside of each lattice frame 15a with the curing sheet 17, the law frame coils 1 are formed.
Mortar or concrete 14 is sprayed from above to form a lattice method frame body 15 (see FIG. 7).

In the completed lattice method frame 15,
For example, a vegetation material composed of plant seeds or organic soil is sprayed on the mesh 7 in the lattice method frame 15 to form a vegetation base layer to stabilize the slope, or a good quality vegetation substrate 16 is sprayed in a thick layer. The inside of the lattice method frame 15 can be attached to make it green.

As described above, in this embodiment, the rectangular coil 1
Since the reinforcing bars 11 and 12 can be held in the bent portions 4 and 5 by an easy work and can be reliably positioned, the workability is excellent and the quality control of the rectangular coil 1 used as the legal frame can be maintained.

In addition, from another point of view, the present invention installs on a slope and then spreads it to install it in a lattice shape, and then sprays mortar or concrete to form a lattice method frame. In a coil for a method frame, a single core material is spirally wound to form a core material portion having a substantially square cross section, a trapezoidal shape, a circular shape, a semicircular shape, or a triangular shape. It is possible to provide a coil for a method frame in which a bent portion is formed in a concave shape by processing the core material in at least the upper reinforcing bar arrangement position in any shape of the core material portion.

[0021]

As described above, according to the present invention, a concave bent portion having a size large enough to hold a reinforcing bar placed thereon is formed in a coil for a legal frame before installation on a slope. Since the reinforcing bar is placed on the bent portion when the coil is expanded, the reinforcing bar position can be accurately determined and standardized, and even when the coil for the legal frame is expanded on the slope, Compared to the conventional method of simply tying the reinforcing bar to the coil with wire etc. or using a separate reinforcing bar holder to position it at the center of the coil, the reinforcing bar is held in the bent part. Since the reinforcement can be arranged, the reinforcement work can be facilitated, the positioning of the reinforcement can be stabilized, and the quality control of the coil for the legal frame used as the legal frame can be maintained.
Moreover, since the coil for the legal frame easily follows the unevenness of the slope,
By bending the reinforcing bars according to changes in the slope surface, it is possible to construct a slope frame that is closely attached to slopes such as natural ground, land reclamation sites and road slopes.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a main part configuration 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 configuration explanatory view for explaining one work process of the construction method in the above embodiment.

FIG. 5 is a configuration explanatory view for explaining another work process of the construction method in the above-mentioned embodiment.

FIG. 6 is a configuration explanatory view for explaining still another work process of the construction method in the above-mentioned embodiment.

FIG. 7 is an overall configuration diagram for explaining a final work process of the construction method in the above embodiment.

FIG. 8 is an explanatory diagram of a main part configuration showing a modified example of a coil for a legal frame used in the above-described embodiment.

FIG. 9 is an explanatory diagram of a main part configuration showing a further modified example of the coil for a legal frame used in the above-described embodiment.

[Explanation of symbols]

1 ... Square coil (coil for method frame), 2 ... One iron wire (core material), 3 ... Core material part, 4, 5 ... Bending part, 6 ... Slope,
7 ... Reticulated body, 11, 12 ... Reinforcing bar, 14 ... Mortar or concrete, 15 ... Lattice method frame.

Claims (2)

[Claims] 1. A method for forming a lattice method frame by forming a method frame coil by spreading the method frame coil on a slope and spraying mortar or concrete onto the method frame coil. Before installation on a surface, a method comprising forming a concave bent portion in the coil for the method frame, and placing reinforcing bars on the bent portion when the coil for the method frame is spread to give reinforcing bar reinforcement Construction method of the lattice method frame body using the frame coil. 2. A recessed bent portion is formed in advance on the slope coil before installation on the slope, and subsequently a mesh body such as a wire mesh is installed on the slope, and the slope is further formed. While extending the coil for the above-mentioned method frame, at the time of this coil extension, mortar or A method for constructing a lattice method frame body using a coil for a method frame, which comprises spraying concrete to form a lattice method frame body.