JPH07158077A - Construction method for grating type slope form body using slope form coil - Google Patents

Abstract

PURPOSE:To improve workability by properly maintaining a bar arrangement position in a slope form coil for reinforcements to keep strength as a form for the slope form coil, and preventing the droop of the coil due to bulky state occurring at the time of making a transverse form of the coil. CONSTITUTION:A slope form coil 1 is extended on slope surface 6, and reinforcements 11 and 12 are subsequently passed through reinforcement insertion holes 4 and 5. Also, the reinforcements 11 and 12, and a pair of reinforcements 8 and 9 are respectively bound vertically to each other using binding members 46 and 47, thereby installing the coil 1 like a grating. Then, mortar or concrete 16 is jetted to the upper surface of the coil 1 to form a grating type slope form body 14.

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 [JP-A-3-100230, JP-B-3-20351].

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 the coil for the frame, the reinforcing bar is simply tied to the coil with a wire or the like, or a reinforcing bar holder is separately used to reinforce the reinforcing bar at the center of the coil. Is a time-consuming method of arranging the bar, and because the bar position of the rebar cannot be accurately determined, there is a problem in quality control as well as the strength of the coil for the framing frame as a legal frame. There is.

Further, when the coil is spread on the surface of the slope,
Although the coil has the characteristic that it follows the unevenness of the slope well, it was bulky on the contrary due to its flexibility, and the workability was poor. In particular, since the lattice method frame is composed of a horizontal frame part installed in the direction of the contour line on the slope and a vertical frame part installed orthogonally to the horizontal frame part, the horizontal frame part is installed. At that time, there was a problem in that the coil was sagged due to the bulkiness, and it took a lot of time and effort to perform the construction.

The present invention has been made in view of the above problems, and an object thereof is to secure a reinforcing bar position of a reinforcing bar to a coil for forming a frame so that the strength of the coil for forming a frame can be maintained. A method of constructing a lattice method frame body using a coil for a legal frame that can prevent the sagging of the coil due to the bulkiness of the coil when forming the lateral frame and improves the workability To do.

[0010]

In order to achieve the above object, a method of constructing a lattice method frame body using a coil for a legal frame of the present invention is to install a coil for a legal frame on a slope and When the mortar or concrete is sprayed on the method frame coil installed in a lattice by spreading the application coil, a method of substantially 2 is applied before installation on the slope. Reinforcing rods having an occupying area that can be juxtaposed is formed in the coil for the legal frame, after installation on the slope, while spreading the coil for the legal frame, at the time of this coil spreading, The reinforcing bar is arranged by inserting the reinforcing bar through the reinforcing bar insertion port.

Further, according to another aspect of the present invention, before installation on a slope, a reinforcing bar insertion port having an occupied area such that substantially two reinforcing bars can be juxtaposed is formed in the coil for the legal frame in advance. Then, install a mesh body such as a wire mesh on the slope,
Further, the coil for the legal frame is spread on the slope, and at the time of the coil spreading, the reinforcing bar is inserted by inserting the reinforcing bar into the reinforcing bar insertion port, and then the coil for the legal frame is installed in a lattice shape. There is provided a method for constructing a lattice method frame body using a coil for a method frame which comprises spraying mortar or concrete from above to form a lattice method frame body.

In the present invention, the reinforcing bar insertion port having an occupied area that allows two rebars to be juxtaposed substantially means a size such that two rebars can be juxtaposed at a joint between rebars to be inserted. Means being formed. That is, for example, as shown in FIG. 7, at the joint T between the reinforcing bars 11 and 11 inserted through the reinforcing bar insertion port 4, the reinforcing bars 11 and 11 are formed to a size such that the two reinforcing bars 11 and 11 can be juxtaposed, and At the joint T, the two reinforcing bars 11, 11 are preferably bound together by a wire or the like. Therefore, it is preferable that the reinforcing bar insertion ports 4 and 5 are formed in the annular portion.

The rebar insertion holes 4 and 5 are preferably formed in an annular shape by processing the core material 2 of the coil 1 for the frame of the frame at least at the rebar arrangement position of the upper part.
You may use a separate thing from a core material, without processing. Further, when two rebars 11, 11 are juxtaposed at the joint between the rebars 11, 11 to be inserted, a preventive piece (not shown) for preventing sticking out so that these do not protrude from the rebar insertion ports 4, 5. Gap) and the gap S to the extent that it does not overflow
(See FIG. 3) may be formed. The preventive piece may be separate from the core material.

The coil for the method frame in the present invention may be any of saddle shape, trapezoidal shape, circular shape, square shape, semicircular shape, triangular shape and the like, and any coil has 1 to 4 rebar insertion openings. To use.

That is, (1) In the case where there are four reinforcing bar positions, when a so-called four reinforcing bar is arranged, as shown in FIGS. 2 and 3, for example, a saddle-shaped core material portion is used. In the saddle-shaped coil 1 consisting of 3, the reinforcing bar insertion holes 4 and 5 are provided at two positions on the upper and lower sides of the coil at the left and right symmetrical positions, and on the lower part of the coil, the reinforcing bars 6 are arranged in a grid pattern on the slope 6 at the left and right symmetrical positions. It is preferable to provide two auxiliary holding portions 44 and 45 for holding the applied reinforcing bars 8 and 9. Then, in addition to the combination of the reinforcing bar insertion holes 4 and 5 and the auxiliary holding parts 44 and 45, as shown in FIGS. 1 and 2, the reinforcing bars 8 and 9 inserted into the auxiliary holding parts 44 and 45 are further added. The reinforcing bars 11 and 12 inserted through the reinforcing bar insertion ports 4 and 5 directly above the binding members 46 and 47 such as wire.
The above-mentioned conventional problems can be easily solved by bundling in the vertical direction by using.

(2) In the case where there are two reinforcing bar positions, when a so-called two reinforcing bar is arranged, as shown in FIG. 9, a saddle-shaped saddle-shaped core member 50 is formed. One rebar insertion port 51 is provided at the center of the upper part of the coil, while
It is preferable to provide one auxiliary holding portion 52 at the central position under the coil.

In the present invention, in order to install the coil 1 for the method frame having the reinforcing bar insertion holes 4 and 5 on the slope 6, first, as shown in FIG. 4, a wire net or the like installed on the slope 6 is used. The coil for frame 1 is spread on the reticulated body 7 along, for example, a pair of reinforcing bars 8 and 9 in which grid-shaped reinforcing bars are provided. Subsequently, as shown in FIG. 5, before the reinforcing bars 11 and 12 are inserted into the reinforcing bar insertion holes 4 and 5 during the coil expansion, the pair of reinforcing bars 8 and 9 are inserted into the auxiliary holding portions 44 and 45 below the coil. At the same time, 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), and then the reinforcing bars 11 and 12 are inserted into the reinforcing bar insertion ports 4 and 5. In addition, the reinforcing bars 11 and 12 and the pair of reinforcing bars 8 and 9 are bound in the vertical direction using binding members 46 and 47, respectively (see FIG. 6). In this way, the method frame coils 1 are installed in a lattice shape, and after the inside of each lattice frame 14a is covered with a curing sheet 15, mortar or concrete 16 is sprayed from above the method frame coils 1 to form a lattice method frame body. 1
4 is formed (see FIG. 8).

[0018]

[Function] A reinforcing bar insertion port having a size that allows two rebars to be juxtaposed at a joint between rebars to be inserted is formed in a coil for a legal frame before installation on a slope, and the reinforcing bar is used when the coil is spread. Since it was made to pass through the reinforcing bar insertion port, it is possible to accurately determine the bar arrangement position of the reinforcing bar, and even when the coil for the legal frame is spread on the slope, as in the conventional case, the reinforcing bar is simply attached to the coil. Compared to the labor-intensive arranging method of bundling with wire etc. or locating the rebar in the center of the coil using a separate rebar holder, the rebar can be arranged while being inserted and held in the rebar insertion port. Therefore, the work of arranging can be facilitated, the positioning of the reinforcing bar can be stabilized, and the quality control of the coil used as the legal frame can be maintained.

Further, since the reinforcing bars can be laid in the reinforcing bar insertion openings while reliably inserting and holding the joints between the reinforcing bars, the strength as a legal frame can be maintained. Moreover, since the reinforcing bars are installed through the reinforcing bar insertion holes of the legal frame coil in a grid pattern, the coil for the legal frame is installed without forming a bulky coil when the coil is installed to form the lateral frame part. In particular, when the coil is installed to form the lateral frame portion, the coil is reliably prevented from being bulky, and the workability is remarkably improved.

In short, in the conventional coil construction method using the coil for the method frame, a mesh-like body such as a wire mesh is installed on the slope and coils of circular, quadrangular, semicircular, triangular, etc. are installed on the slope in a grid pattern. , I had arranged 1 to 3 reinforcing bars on it,
The position of the reinforcing bar was not determined in character, and there was a problem in strength as a legal frame, but in the present invention, the reinforcing bar position is accurately determined, and the reinforcing bar can be held at a required location, which is excellent in quality control. At the same time, it is possible to surely insert and hold the joint between the reinforcing bars, so that it is possible to obtain a legal frame having a remarkably strong strength. In addition, the coil can be prevented from sagging when forming the horizontal frame portion, which improves the workability. In addition, it is possible to easily follow sloping ground such as natural ground, land reclamation land and unevenness of slopes such as roads by bending the reinforcing bars.

[0021]

EXAMPLES Examples of the present invention will be described below. However, the present invention is not limited thereby.
1 to 3, a saddle-shaped coil (an example of a coil for a method frame) 1 is formed by spirally winding one iron wire (core material) 2 to form a core material portion 3 having a substantially saddle-shaped cross section. The rebar insertion holes 4 and 5 are formed in the annular portion by processing the iron wire 2 at the rebar arranging position above the core material portion 3.

Further, two rebars are attached to the annular portions 4 and 5,
For example, a gap S (see FIGS. 2 and 3) is formed to such an extent that they do not protrude when they are arranged side by side vertically. Further, in order to provide the four reinforcing bars, as shown in FIG. 3, for example, in the saddle-shaped coil 1 including the saddle-shaped core material portion 3, the annular portions 4 and 5 are placed at the left and right symmetrical positions above the coil. In the lower part of the coil, the slope 6 is provided at the left and right symmetrical positions below the coil.
Two auxiliary holding portions 44 and 45 for holding the reinforcing bars arranged in a grid pattern are provided on the upper side. Then, in addition to the combination of the annular portions 4 and 5 and the auxiliary holding portions 44 and 45, as shown in FIGS.
Reinforcing bars 8 and 9 inserted into 4, 45 and reinforcing bars 11 and 12 inserted into the annular portions 4 and 5 directly above the reinforcing bars 8 and 9 are bound in the vertical direction using binding members 46 and 47 such as wire. .

In order to install the coil for coil 1 having the reinforcing bar insertion holes 4 and 5 on the slope 6, first, as shown in FIG. On body 7,
For example, along the pair of reinforcing bars 8 and 9 in which the reinforcing bars are arranged in a grid pattern, the coil 1 for the legal frame is spread thereon. continue,
As shown in FIG. 5, when the coil is spread, the reinforcing bars 11, 12 are
Before inserting the rebar into the rebar insertion ports 4 and 5,
9 is inserted into the auxiliary holding portions 44 and 45 at the lower part of the coil, and the expanded coil 1 is temporarily fixed by the auxiliary anchor 13 so that each core material portion 3 has a predetermined interval (see FIG. 2). The reinforcing bars 11 and 12 are inserted through the reinforcing bar insertion ports 4 and 5, and the reinforcing bars 11 and 12 and the pair of reinforcing bars 8 and 9 are bound in the vertical direction using binding members 46 and 47, respectively (see FIG. 6). ). In this way, the method frame coils 1 are installed in a lattice shape, and after the inside of each lattice frame 14a is covered with a curing sheet 15, mortar or concrete 16 is sprayed from above the method frame coils 1 to form a lattice method frame body. 14 is formed (see FIG. 8).

At this time, as shown in FIG. 7, the reinforcing bar insertion port 4
However, since the two reinforcing bars 11 and 11 are formed in such a size that, for example, the two reinforcing bars 11 and 11 can be juxtaposed in the vertical direction at the joint T between the reinforcing bars 11 and 11 inserted into the reinforcing bar insertion port 4, the two reinforcing bars are formed. 11, 11 can be easily connected.

In this way, the method frame coils 1 are installed in a lattice shape, the interior of each lattice frame 14a is covered with a curing sheet 15, and then mortar or concrete 16 is sprayed onto the method frame coils 1 to form a lattice. The frame body 14 is formed (see FIG. 8).

In the completed lattice method frame 14,
For example, a vegetation material composed of plant seeds or organic soil is sprayed on the mesh 7 in each lattice frame 14a to form a vegetation base layer to stabilize the slope, or a good quality vegetation base material 17 is sprayed in a thick layer. Then, the inside of the lattice method frame 14 can be greened.

As described above, in this embodiment, since the reinforcing bars 11 and 12 can be held in the reinforcing bar insertion holes 4 and 5 of the saddle-shaped coil 1 by a simple work and can be reliably positioned, the workability is excellent and the method is The quality control of the saddle coil 1 used as a frame can be maintained.

Further, in the past, the position of the reinforcing bars was not determined according to the character and there was a problem in the strength as the legal frame. However, in this embodiment, the positions of the reinforcing bars 11, 12 are the reinforcing bar insertion holes 4, 4. 5
Can be accurately determined, and the reinforcing bar can be held at a required position, so that a strong legal frame can be obtained.

That is, the reinforcing bars 11 and 12 can be laid in the reinforcing bar insertion ports 4 and 5 while reliably inserting and holding even at the joint T between the reinforcing bars 11, 11, 12 and 12, so that the strength as a legal frame is maintained. Moreover, since the reinforcing bars 11 and 12 are installed through the reinforcing bar insertion ports 4 and 5 in a grid pattern, the coil is bulky and sagging especially when the coil 1 for frame is installed to form the lateral frame part. Can be installed without
In particular, when the coil is installed to form the horizontal frame portion, the coil is reliably prevented from being bulky, and the workability is significantly improved.

In the above embodiment, the case where the reinforcing bars are arranged side by side in the vertical direction is shown, but the present invention is not limited to this, and they may be arranged side by side, for example.

[0031]

As described above, according to the present invention, the reinforcing bar insertion opening is formed in such a size that the two reinforcing bars can be juxtaposed at the joint between the reinforcing bars to hold the reinforcing bars. Form on the coil for the law frame before installation on the surface,
Since the reinforcing bar is inserted through the reinforcing bar insertion port when the coil is expanded, the bar arrangement position of the reinforcing bar can be accurately determined, and even when the coil for the legal frame is expanded on the slope, the conventional method is used. , The reinforcing bar is inserted into the reinforcing bar insertion hole in comparison with the laborious arrangement method in which the reinforcing bar is simply wrapped around the coil with wire or the reinforcing bar holder is used to position the reinforcing bar in the center of the coil. Since the reinforcing bar can be arranged while holding it, the reinforcing bar can be easily arranged, the positioning of the reinforcing bar can be stabilized, and the quality control of the coil used as the legal frame can be maintained.

Furthermore, since the reinforcing bars can be laid in the reinforcing bar insertion holes while reliably inserting and holding the joints between the reinforcing bars, the strength as a legal frame can be maintained. Moreover, since the reinforcing bars are installed through the reinforcing bar insertion holes of the legal frame coil in a grid pattern, the coil for the legal frame is installed without forming a bulky coil when the coil is installed to form the lateral frame part. In particular, when the coil is installed to form the lateral frame portion, the coil is reliably prevented from being bulky, and the workability is remarkably improved.

In short, in the conventional coil construction method using the coil for the method frame, a mesh-like body such as a wire mesh is installed on the slope, and a coil such as a circle, a quadrangle, a semicircle, or a triangle is installed on the slope in a grid pattern. , I had arranged 1 to 3 reinforcing bars on it,
The position of the reinforcing bar was not determined in character, and there was a problem in strength as a legal frame, but in the present invention, the reinforcing bar position is accurately determined, and the reinforcing bar can be held at a required location, which is excellent in quality control. At the same time, it is possible to surely insert and hold the joint between the reinforcing bars, so that it is possible to obtain a legal frame having a remarkably strong strength. In addition, the coil can be prevented from sagging when forming the horizontal frame portion, which improves the workability. In addition, it is possible to easily follow sloping ground such as natural ground, land reclamation land and unevenness of slopes such as roads by bending the reinforcing bars.

[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 explanatory diagram of a main part configuration for explaining a work process of a construction method in the above-described embodiment.

FIG. 8 is an overall configuration explanatory diagram for explaining a work process of a construction method in the above-described embodiment.

FIG. 9 is an explanatory diagram of a main part configuration showing a modified example of the method frame coil used in the embodiment.

[Explanation of symbols]

1 ... saddle type coil (coil for frame), 2 ... one iron wire (core material), 3 ... core material part, 4, 5 ... annular part (rebar insertion port),
6 ... Slope, 7 ... Reticulated body, 8, 9, 11, 12 ... Reinforcing bar, 1
4 ... Lattice method frame body, 16 ... Mortar or concrete, 4
6, 47 ... Bundling members.

Claims (3)

[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 the surface, a reinforcing bar insertion opening having an occupied area that allows substantially two juxtaposed reinforcing bars to be juxtaposed is formed in the coil for the legal frame, and when the coil for the legal frame is spread, the reinforcing bar is used for the reinforcing bar. A method for constructing a lattice method frame body using a coil for a method frame, which comprises reinforcing bars by inserting them through an insertion port. 2. Before installation on the slope, a reinforcing bar insertion opening having an occupying area that allows substantially two rebars to be juxtaposed is formed in the coil for the slope frame in advance, and then the slope is formed. A reticulated body such as a wire mesh is installed on the top, and further, while spreading the coil for the method frame on the slope, at the time of this coil spreading, the reinforcement is reinforced by inserting the rebar into the rebar insertion opening, Thereafter, a method for constructing a lattice method frame body using a method frame coil, which comprises forming a lattice method frame body by spraying mortar or concrete on the method frame coils arranged in a lattice shape. 3. The method according to claim 1 or 2, wherein the reinforcing bar insertion port is formed in an annular portion so that two reinforcing bars are juxtaposed at a joint between the reinforcing bars inserted in the reinforcing bar insertion port. Construction method of the lattice method frame body using the frame coil.