JP2748262B2 - Inspection frame for forming a legal frame provided with a reinforcing bar holding member and a legal frame construction method using the same - 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 provided with a reinforcing steel holding member used in a cast-in-place method, for example, when greening a slope such as a road or a constructed ground. The present invention relates to an inspection frame and a method of construction using the same.

[0002]

2. Description of the Related Art As an example of the cast-in-place method, there is a "slope stabilization method" disclosed in Japanese Patent Publication No. 58-20338. In this method, after laying a mesh such as a wire mesh on the slope, laying a reinforcing bar in a grid on this mesh and spraying mortar or concrete (hereinafter referred to as mortar, etc.) on the grid-shaped reinforcing bar. Since it is designed to form a grid-like method frame consisting of etc., compared to the conventional prefabricated type or cast-in-place method, it has excellent workability and strength, and uses less base material and is inexpensive There is an advantage that it is.

[0003]

According to the current civil engineering standards, the required strength is such that the thickness of the mortar or the like covering the lattice-shaped reinforcing steel (hereinafter referred to as “covering thickness”) is 5 cm or more from any surface of the reinforcing steel. It is obliged as a quality control standard to obtain a grid-like framework. However, the cast-in-place method is a cast-in-place method that does not use a formwork, and the mortar or the like is sprayed as an on-site work in an unstable place on the slope. The thickness and width of the sprayed mortar and the like are likely to be non-uniform, requiring considerable skill to form a grid-shaped frame with a predetermined size, and avoiding variations in the size and strength of the grid-shaped frame. I couldn't.

[0004] The present invention has been made in consideration of the above-mentioned matter, and in a cast-in-place method using no formwork,
It is an object of the present invention to provide a measuring frame for forming a legal frame which can easily form a lattice-like legal frame made of mortar or the like having a standard size and strength without requiring skill.

[0005]

Means for Solving the Problems To achieve the above object, the inspection frame of the present invention, after laying a net on a slope,
A test frame for forming a legal frame for regulating the dimensions of a lattice-shaped legal frame formed by spraying mortar or concrete onto the lattice-shaped reinforcing bar, the reinforcing bars being arranged in a grid on the mesh body, A pair of first members having a height and a width in a front view and having a suitable interval in the length direction and straddling a reinforcing bar, and a pair of first members connecting the height intermediate portions of the first members. It is characterized by comprising two second members and a reinforcing-bar holding member laterally provided so as to bridge between the second members.

Further, in the method of the present invention, after laying a mesh on a slope, reinforcing bars are arranged in a grid on the mesh, and mortar or concrete is sprayed on the grid-like reinforcing bar to mortar or concrete. In a method frame method for forming a grid-shaped method frame comprising: a pair of first members provided in a bow shape in a front view having a predetermined height and width, and straddling a reinforcing bar at appropriate intervals in a length direction; The inspection frame composed of the two second members connecting the intermediate portions in the height direction of the first member and the reinforcing bar holding member laid laterally so as to bridge the second members so as to straddle the reinforcing bars. In a state where the reinforcing bars are arranged and reinforced and bound to the reinforcing bar holding member, mortar or concrete is sprayed according to the inspection frame to form a normal frame.

[0007] It is normal that two rebar holding members are provided side by side so as to connect the second members, but one or several rebar holding members may be provided side by side.

[0008]

The inspection frame K used in the present invention is formed to have a predetermined height H (for example, 9 cm) and a width W (for example, 30 cm) as shown in FIG. 1 and two second members 2 for connecting the first members 1 to each other, and two reinforcing bar holding members 3 are laterally provided on the second member at a height direction intermediate portion of the first member 1. It becomes. The first member 1 and the second member 2 and the rebar holding member 3 which constitute the inspection frame K are made of, for example, a wire having an appropriate thickness subjected to rust-proofing.
The member 2 is connected by welding or soldering. Further, two reinforcing bar holding members 3 are welded on, for example, a pair of second members so as to bridge between the second members. Therefore, the structure of the inspection frame K is simple, its manufacture is easy, and it is inexpensive.

When forming the grid-like method frame 12 made of a predetermined mortar or the like on the slope 4, the slope 4 is shaped and then, as shown in FIG. The mesh 5 is laid, and the reinforcing bars 7 are arranged on the mesh 5 in a lattice shape. Then, as shown in FIG. 2, the inspection frame K is arranged at an appropriate interval on the mesh body 5, and the reinforcing bar 7 and the reinforcing bar holding member 3 are bound by the binding wire 6, and thereafter, FIGS. As shown in (1), mortar 11 or the like is sprayed on the reinforcing bar 7 forming the lattice frame.

[0010] By doing so, it is possible to blow mortar like 11 against rebars 7 reliably to a predetermined width and height, the lattice-like process frame 12 including, for example, mortars having a predetermined intensity It can be reliably formed on the slope 4.

[0011]

1 to 4 show an example of an inspection frame according to the present invention and a method of construction using the inspection frame. First, FIG.
In the above, K is an inspection frame, and this inspection frame K is composed of a pair of first members 1 having a predetermined height H (for example, 9 cm) and a width W (for example, 30 cm), and the first members 1. A second member 2 to be connected, and a reinforcing bar holding member 3 horizontally provided so as to bridge between the second members on a second member connecting the first member 1 at an intermediate portion in the height direction of the first member 1. It is composed of

That is, the first member 1, the second member 2, and the rebar holding member 3 are made of, for example, rust-preventing wires having an appropriate thickness (for example, a diameter of 4 mm). Both ends of the second member 2 are fixed to positions slightly above the lower end of the first member 1 by welding or soldering. The length L of the second member 2 is shorter than the length of one side of the lattice frame formed by the reinforcing bars 7 on the slope 4 and may be, for example, about 40 cm.

Next, an example of the in-situ casting method using the inspection frame K will be described with reference to FIGS. Eyes on preformed slope 4 are, for example, 5-6
A mesh body 5 such as a diamond-shaped wire netting of about cm is laid, and anchors are driven into the slope 4 at appropriate intervals to fix the mesh body 5 to the slope 4 (see FIGS. 2 and 3).

On the mesh 5, for example, a diameter of 6 to 10
Reinforcing bars 7 of about mm are combined and arranged in a lattice shape with one side of about 1 to 2 m (see FIG. 1).

The first frame 1 straddles the reinforcing bar 7 substantially at the center of each side of the grid frame made of the reinforcing bar 7 and binds the reinforcing bar 7 to the reinforcing bar holding member 3. 5
It is arranged at an appropriate interval above (see FIGS. 1 and 2).

The inspection frame K serves as a measure of the spray width and spray height of the mortar 11 or the like.
As long as at least one is provided on each side of the lattice frame, as in this embodiment, when the length of the side is 1 to 2 m and the length L of the inspection frame K is 40 cm, one side is provided for each side. It is only necessary to provide the inspection frame K. Further, when the length of the side becomes longer, two or more inspection frames K of the above dimensions may be provided.

A low-slump mortar 11 having, for example, a water content of about 7 to 8% is sprayed on the lattice-shaped reinforcing bar 7 constructed as described above by a civil engineering spraying machine (not shown) such as a mortar gun machine. In this case, on each side of the lattice frame formed by the reinforcing bar 7, a detection frame K serving as a guide of the spray width and the spray height of the mortar 11 is provided. 11
By simply spraying, a grid-like method frame (hereinafter simply referred to as a grid-like method frame) 12 made of mortar or the like having a predetermined dimension can be easily formed. That is, in this embodiment, it is possible to form the grid-like method frame 12 having a lower end width of about 30 to 35 cm and a height of about 10 to 15 cm, and it is possible to reliably form the grid-like method frame 12 having a predetermined size and a predetermined strength. is there. In FIGS. 1 and 3, reference numeral 13 denotes a nozzle for spraying mortar 11 or the like.

The soil, organic material, water retaining material (soil improving material), etc. and seeds such as turfgrass, wild grass, flowers, shrubs, etc. are placed in the lattice-shaped frame 12 formed on the slope 4 as described above. The mixed vegetation material is sprayed using a power sprayer or the like to form a vegetation layer 14 (see FIG. 1), or alternatively, a vegetation bag in which the vegetation material is filled in a coarse bag. It is possible to introduce vegetation to rock slopes, etc., which was previously impossible by placing (not shown), improving the landscape of the slopes and using vegetation with roots and stems. It greatly contributes to the permanent stability of the surface.

The installation height of the second member 2 in the inspection frame K is arbitrary, but when it is desired to secure the covering thickness of the reinforcing bar 7 to a predetermined value or more, it is desirable to fix the reinforcing member 7 at a high position on the first member. . Further, the inspection frame K may be integrally formed of plastic.

Further, the reinforcing bar 7 provided on one side of the lattice frame is not necessarily one, but may be a plurality of bars. In this case, a fourth long anchor is provided near the intersection of the reinforcing bars 7 on the side surface 4.
, And the reinforcing bars may be supported and bound in a cross-girder shape, and may be stacked one or several steps. In any of the embodiments, the rebar holding member is the first member or the second member.
It is fixed to the member by welding or soldering, or by binding means such as a wire.

[0021]

The present invention has been described above. The inspection frame of the present invention has a simple structure, can be manufactured easily and inexpensively, and is easy to handle. Then, the reinforcing bar holding member provided on the inspection frame can stably hold the reinforcing bar serving as the central member in the lattice-shaped method frame.

Further, in the legal frame construction method using this test Hakawaku, mortar eliminates spraying unevenness such as lattice-like including, for example, mortars having dimensions and strength standards as having a predetermined fog thickness around the reinforcing bars The method frame can be easily formed on the slope without skill.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an example of a cast-in-place method according to the present invention.

FIG. 2 is a view showing a main part of the method.

FIG. 3 is a front view showing a main part of the method.

FIG. 4 is a perspective view showing an example of an inspection frame used in this method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1; 1st member, 2; 2nd member, 3; Rebar holding member, 4;
Slope, 5; reticulated body, 6; binding wire, 7; reinforcing bar, 11; mortar, etc., 12; grid-shaped slope, 13; nozzle, 14;

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kiyoshi Suhiro, 590-1 Takao, Tsuyama City, Okayama Prefecture Inside Nippon Vegetation Co., Ltd. (56) References JP-A-57-224 (JP, A)

Claims (2)

(57) [Claims] After laying a mesh on a slope, reinforcing bars are arranged in a grid on the mesh, and the size of a grid-like frame formed by spraying mortar or concrete on the grid is regulated. A pair of first members provided in a test frame for forming a legal frame, having a bow shape in a front view having a predetermined height and a predetermined width, and straddling a reinforcing bar at appropriate intervals in a length direction,
A method for forming a legal frame, comprising: two second members for connecting intermediate portions in the height direction of the first member; and a reinforcing bar holding member laterally provided so as to bridge between the second members. Inspection frame. 2. After laying a mesh on a slope, reinforcing bars are arranged in a grid on the mesh, and mortar or concrete is sprayed on the grid to form a grid-like frame made of mortar or concrete. A pair of first members which are provided in a bow shape having a predetermined height and width in a front view and which are provided straddling a reinforcing bar at appropriate intervals in a length direction, and a height of the first members. The two second members connecting the middle parts in the direction, and the inspection frame composed of a reinforcing bar holding member laterally provided so as to bridge between the second members is arranged so as to straddle the reinforcing bar, and the reinforcing bar holding member A method of forming a frame by spraying mortar or concrete in accordance with the inspection frame in a state where the reinforcing bars are bound and arranged.