JPH0849240A - Slope frame, its manufacture, and work execution method for slope frame - Google Patents

Abstract

PURPOSE:To facilitate installing a slope frame in compliance with the surface unevenness by installing a bellows-form wire member on the outer surface in such a way as stretching in the longitudinal direction of reinforcing mild steel bars, and arranging so that the wire members are capable of elongating and contracting. CONSTITUTION:The primary frame 6 of a slope frame 1 is formed by previously assembling low mild steel bars 2 and an arch-from member 3, or depending upon the of the slope face, upper mild steel bars 4 and a bellows-form member 5 are further added followed by assembling. In constructing a sloping frame, the primary frame 6 is installed as a crosswise frame 14 in the uppermost part of the slope face, and further, the primary frame 6 as an appropriate number of longitudinal frame members 15 is installed while a lath netting is provided. The primary frame 6 is erected upright while its leg bottoms of arch-shaped member 3 plunge into the slope face so that it hitches at the lath netting even if it slips off from the slope face. As crosswise frame members 14 the primary frame 6 is secured to the slope face by driving anchors 7 one by one from the bottom of the longitudinal frame members 15, and the primary frame 6 fixes the upper reinforcing mild steel bars 4 over the upper part of the arch-shaped member 3. Then the bellows-form member 5 is covered and fixed, and to it mortar or concrete 8 is sprayed so that work of the slope frame is executed for the slope face.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method frame for constructing a slope surface for protection and the like, a method for manufacturing the slope surface and a method for constructing the slope surface.

[0002]

2. Description of the Related Art In the conventional method frame, wire mesh-like molds (frames) on both sides are installed vertically and horizontally on the slope, and these molds are connected left and right by a reinforcing bar member to form a lattice frame. In the formwork,
Concrete or mortar was sprayed to form the legal framework.

Further, there is also known a method frame in which the method frame is made of a water-resistant cardboard or a mold such as plastic, and mortar or concrete is sprayed into the frame.

Further, as described in Japanese Patent Laid-Open No. 63-289120, "A wire mesh is stretched on a slope, and one or several reinforcing bars are arranged on the wire mesh, and a transparent space is provided so as to cover the reinforcing bars. A lattice frame is formed by arranging a Kabuse frame whose end face shape is a substantially inverted U shape having a large number of ceiling portions and a pair of side portions made of mesh plates having fine meshes. There is also known a "slope stabilization method for constructing a slope, which is characterized by spraying concrete to form a slope."

Furthermore, the inventor of the present invention has filed Japanese Patent Application No. 4-3529.
49 In “Construction method of slope frame”, “Install rebar on the slope and open a U-shaped member consisting of almost U-shape with an opening end formed on one side at intervals along the rebar installation position. The method of constructing the method frame is characterized in that the U-shaped members are fixed to the rebar, the nets are covered over the U-shaped members, and the mortar is sprayed over the nets. Is proposed.

[0006]

However, in a legal frame made of cardboard or plastic, rebounds that occur when mortar or concrete is sprayed, are particularly likely to accumulate in the lateral frame, and the inside becomes a sand pocket shape, resulting in a high strength. There was a drawback that it became a legal framework that would not come out.

Further, with a wire netting form or the like, the rebounds generated during spraying can be sufficiently scattered, but since the scattered rebounds are successively sprayed, it is difficult to collect the rebounds together and to take them out. For that reason, the mortar, etc. was sprayed from above without being able to get rid of the scattered rebound.

Therefore, it was not possible to provide a strong legal frame which is in close contact with the slope.

Further, in the conventional method frame, since the method frame is made while installing the reinforcing bars on the slope surface, it is difficult to install and construct the method frame on a steep slope or a complicated slope with many irregularities. There was a point.

The present invention can be easily assembled in a factory or on-site, can be adapted to uneven slopes, rebounds are hard to accumulate, and a law frame and a method for manufacturing the law frame that do not hang down even on a steep slope. And to obtain the method of construction of the legal framework.

[0011]

[Means for Solving the Problems] In order to achieve this purpose,
According to the method frame of the present invention, the middle of both legs of the arch-shaped members that are erected at plural intervals in the longitudinal direction are fixed to the lower rebar members installed in parallel, and the upper rebar member is placed between the upper parts of the arch-shaped members. Attached, and the linear members are repeatedly folded back between the base linear members installed on both sides of the lower reinforcing member, and the bellows-shaped member formed to extend and contract in the longitudinal direction is passed over the upper reinforcing member to form an arch-shaped member. It is provided over the longitudinal direction of the reinforcing bar member so as to cover it.

Further, according to the method of manufacturing the method frame of the present invention, a plurality of holes for arch-shaped members which are arranged in parallel at intervals are formed on the manufacturing table, and a plurality of lower portions are formed substantially along the holes for the arch-shaped members which are arranged in parallel. A reinforcing bar member is installed, a plurality of arch-shaped members are erected in respective arch-shaped member holes, and the lower reinforcing bar member and the middle of both legs of the arch-shaped member are fixed to create a primary frame. A bellows-like member formed by attaching an upper rebar member over the upper part of the linear member and repeatedly folding back the linear member between the base linear members installed near both sides of the lower rebar member to extend and contract in the longitudinal direction. Is provided over the longitudinal direction of the reinforcing bar member so that the bellows-shaped member covers the upper reinforcing bar member and the arch-shaped member.

Further, according to the method of constructing the method frame of the present invention, the lower reinforcing bar members are installed in parallel, and a plurality of arch-shaped members are erected at intervals in the longitudinal direction of the lower reinforcing bar members to form an arch shape with the lower reinforcing bar members. While installing the primary frame in which the middle of both legs of the member is fixed in a grid pattern on the slope in order, the lower ends of both legs of the arch-shaped member of the primary frame are erected on the slope or a lath net provided on the slope. Then, a bellows-like member formed by attaching an upper rebar member over the upper part of the arch-shaped member of the primary frame in order and repeatedly folding back the linear member between the base linear members arranged in parallel so as to be expandable and contractable in the longitudinal direction. Is coated from above the upper rebar member and the arch-shaped member, anchors are sequentially placed on the primary frame and fixed to the slope, and mortar, concrete or the like is sprayed from above the bellows-shaped member.

[0014]

In the method frame, the lower rebar members are fixed in the middle of both legs of the arch-shaped member, so that the lower ends of both legs of the arch-shaped member project from the lower rebar member. Therefore, when the slope frame is installed on the slope, the protruding portion of the arch-shaped member is caught on the slope or the lath net laid on the slope, so that it does not hang down even on a steep slope.

The method frame is provided with a bellows-shaped linear member on the outer surface side over the longitudinal direction of the reinforcing bar member, and since the bellows-shaped member is freely expandable and contractible, it is easy to bend the method frame according to the uneven surface, Can easily cope with unevenness on the slope.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings showing embodiments. First, a method frame of the present invention and a method of manufacturing the method frame will be described.

As for the method frame 1, a manufacturing table 10 is made in a factory or on a slope site, where the lower reinforcing bar member 2 and the arch-shaped member 3 are assembled to form a primary frame 6. Alternatively, depending on the state of the slope, the upper rebar member 4 and the bellows-shaped member 5 are further added for assembly.

In the manufacturing table 10, a large number of holes 12 for arch-shaped members are provided in parallel on a long plate-shaped body 11 mounted on a leg stand 13. The diameter of one of the holes 12 for the arch-shaped member is about 2 cm, and may be any size as long as the reinforcing bars of the arch-shaped member 3 can be inserted therein.
The arch-shaped member holes 12 are juxtaposed at intervals of about 200 mm in width, and a large number of them are provided at intervals of about 300 to 500 mm in the longitudinal direction.

In the method frame 1, two lower rebar members 2 are placed along the arch-shaped member holes 12 juxtaposed to the plate-shaped body 11 of the manufacturing table 10. Next, the arch-shaped member 3 is replaced by the arch-shaped member hole 1
Both legs 30 are put in 2 and set upright.

The arch-shaped member 3 is provided with a mounting portion 31 in a U-shape in a plan view at an intermediate portion between both leg portions 30 thereof.

Next, the placed lower rebar member 2 is fixed by a binding tool or a binding material (not shown) at the position of the mounting portion 31 of the arch-shaped member 3.

An arch-shaped member 3 is provided on the lower rebar member 2 arranged in parallel.
Are fixed by a mounting portion 31 in the middle of both leg portions 30, and a plurality of standing pieces are erected at intervals in the longitudinal direction of the lower reinforcing bar member 2 to form the primary frame 6.

Next, the upper rebar member 4 is provided on the arch-shaped upper portion of the arch-shaped member 3 substantially in parallel with the lower rebar member 2, and is fixed with a binding material or the like.

Next, the bellows-like member 5 is covered from above. The bellows-shaped member 5 includes the base linear members 50 arranged in parallel.
And a linear member 51 that is repeatedly folded back between the two base linear members 50 and that is stretchable in the longitudinal direction between the base linear members 50. Since the linear members 51 that are folded in a zigzag manner between the base linear members 50 are not fixed to the base linear members 50, the spacing between the linear members 51 that are partially folded back may change due to so-called bellows-like movement. It is possible to expand and contract.

The bellows-shaped member 5 is provided on the production table 20 or on the slope 21 so as to cover the lower rebar member 2, the arch-shaped member 3, and the upper rebar member 4, which are forms, and is fixed by a binding material or the like. To do.

The method of manufacturing the method frame 1 may be such that the primary frame 6 up to the primary frame 6 is made on the production table 10 and the subsequent steps are performed on the slope, or the primary frame 6 has an upper rebar member. 4, the mounting of the bellows-shaped member 5 may be performed on the manufacturing table 10.

In the method frame 1, a plurality of arch-shaped members 3 are erected at regular intervals in the longitudinal direction of the lower reinforcing bar members 2 arranged in parallel. The arch-shaped member 3 has a U-shaped or arc-shaped reinforcing bar slightly thinner than the lower reinforcing bar member, and a mounting portion 31 having a U-shape in plan view is provided at an intermediate portion between both leg portions 30 thereof.

The lower rebar member 2 and the plurality of arcuate members 3 standing upright are fixed at the position of the mounting portion 31. An upper rebar member 4 is attached and fixed to each of the upper portions of a plurality of standing arch-shaped members 3 substantially in parallel with the lower rebar member 2.

The bellows-shaped member 5 is provided in the longitudinal direction of the reinforcing bar members 2 and 4 so as to cover the upper reinforcing bar member 4 and the arch-shaped member 3. The two base linear members 50 of the bellows-shaped member 5 are installed on both sides of the lower reinforcing bar member 2, and the linear member 51 is passed between the base linear members 50 over the upper reinforcing bar member 4 and repeatedly folded back. . Linear member 51
Are folded back so as to be movable between the base linear members 50.

Next, a method of constructing the method frame according to the embodiment of the present invention will be described.

First, allocation and marking is performed on the slope by spraying or the like.

Next, the primary frame 6 is attached as a horizontal frame 14 to the uppermost part of the slope, and the primary frame 6 is provided as an appropriate number of vertical frames 15 while the lath net 9 is installed. At this time, the primary frame 6 is erected so that the lower ends of both legs of the arch-shaped member 3 pierce the slope. Moreover, even if it comes off the slope, it will be caught by the lath net 9.

From the bottom of the vertical frame 15 to the horizontal frame 14
The next frame 6 is fixed with an anchor 7 on the slope in a lattice pattern. The primary frame 6 fixes the upper rebar member 4 over the upper portion of the arch-shaped member 3. Next, the bellows-shaped member 5 is covered and fixed from above.

Next, from above the bellows-shaped member 5, mortar,
Alternatively, concrete 8 is sprayed to complete the slope on the slope.

[0035]

[Effect] Therefore, according to the present invention, since a basic primary frame can be created on a production table in a factory or on a slope site, it is difficult and dangerous on the slope, especially on a steep slope. High assembly work can be eliminated.

Particularly, when the slope on which the slope is installed is relatively flat, the bellows-shaped member can be further attached to the primary frame on the production table in a factory or the like, and the work on the slope can be further reduced. You can

When installed on a slope, the lower ends of both legs of the arch-shaped member can be made to stick to the slope, and even if the slope is not pierced or even if it slips out, it is easy to get caught in the lath net. , The law frame does not hang down or slip off even on steep slopes. Therefore, the method frame can be fixed in a grid pattern according to the standard.

Furthermore, since the bellows-shaped member that covers the primary frame and the upper rebar member is expandable and contractable in the longitudinal direction of the primary frame, it is easy to attach these method frames to the uneven slope.

Further, when the mortar and concrete are sprayed after the legal frame is installed on the slope and the anchor is placed,
There was an effect that the rebound of the spray was easily scattered from the gap of the bellows-shaped member made of the linear member, and the rebound was not accumulated.

[Brief description of drawings]

FIG. 1 is a front part explanatory view of a legal framework of the present invention.

FIG. 2 is a plan view of the same

FIG. 3 is a plan view and a front view illustrating a bellows-shaped member.

FIG. 4 is a front view of a state where the arch-shaped member is provided on a slope.

FIG. 5 is a side view of the same.

FIG. 6 is a plan view of the same.

FIG. 7 is an explanatory front view of a method for manufacturing a legal frame of the present invention.

FIG. 8 is a plan view of the same.

FIG. 9 is a perspective view of the primary frame.

[Figure 10] Explanatory drawing for construction on the slope

FIG. 11 is also an explanatory diagram

FIG. 12 is also an explanatory diagram

[Explanation of symbols]

 1 Method Frame 2 Lower Reinforcing Bar Member 3 Arch-Shaped Member 30 Leg 31 Attachment Part 4 Upper Reinforcing Bar Member 5 Bellows-Shaped Member 50 Base Line Member 51 Linear Member 6 Primary Frame 7 Anchor 8 Mortar or Concrete 9 Lath Net 10 Manufacturing Platform 11 Plate-like body 12 Hole for arch-shaped member 13 Leg base 14 Horizontal frame 15 Vertical frame

Claims (3)

[Claims] 1. A lower reinforcing bar member installed in parallel is fixed to the middle of both legs of arch-shaped members standing upright at intervals in the longitudinal direction, and an upper reinforcing bar member is mounted between the upper parts of the arched members. , A linear member is repeatedly folded back between the base linear members installed on both sides of the lower rebar member, and a bellows-shaped member formed to extend and contract in the longitudinal direction is passed over the upper rebar member to cover the arch-shaped member. A method frame, characterized in that it is provided over the longitudinal direction of the reinforcing bar member. 2. A plurality of arch-shaped member holes that are arranged in parallel at intervals on a manufacturing table are formed, and a plurality of lower reinforcing bar members are installed substantially along the juxtaposed arch-shaped member holes, and each arch-shaped member is formed. A plurality of arch-shaped members are erected in the member holes, the lower rebar member and the middle of both legs of the arch-shaped member are fixed to create a primary frame, and the upper rebar is laid between the upper parts of the arch-shaped members. A bellows-shaped member, in which a member is attached and is linearly repeatedly folded back and forth between base linear members to be installed near both sides of a lower rebar member, so that the bellows-shaped member is an upper rebar member, A method for manufacturing a legal frame, characterized in that it is provided over the longitudinal direction of a reinforcing bar member so as to cover the arched member. 3. A primary structure in which lower rebar members are installed in parallel, a plurality of arch-shaped members are erected at intervals in the longitudinal direction of the lower rebar members, and the middle portions of both legs of the lower rebar member and the arch-shaped member are fixed. While sequentially installing the frame on the slope in a grid pattern,
The lower ends of both legs of the arched member of the primary frame are erected on a slope or a lath net provided on the sloped surface, and then the upper rebar members are sequentially mounted between the upper parts of the arched members of the primary frame and arranged in parallel. A linear member is repeatedly folded back and forth between the base linear members to be covered, and a bellows-shaped member formed so as to be expandable and contractible in the longitudinal direction is covered from above the upper rebar member and the arch-shaped member, and anchors are sequentially placed on the primary frame. A method of constructing a method frame, characterized by spraying mortar, concrete, or the like from above the bellows-like member.