JPH0124200Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a slope frame constructed on a slope to stabilize the slope.

[Prior art]

Conventionally, when building a slope on a slope, construction was carried out by assembling a formwork made of wire mesh or the like on the slope and spraying concrete or the like into the formwork.

The work of assembling such formwork requires time and money, and requires skilled workers. Furthermore, spraying concrete etc. also requires time and cost.

[Purpose of invention]

This idea was made to improve the above-mentioned shortcomings; it is easy to assemble formwork and pour concrete, simplify construction, and also contributes to stabilizing long slopes. The purpose is to provide a legal framework that allows for

[Structure of the idea]

The legal framework for this idea consists of the following structure.

A lower frame member having locking portions formed in parallel at both ends in the width direction and having an outflow hole.

Two concrete side plates installed in parallel along the locking part of the lower frame material.

A concrete top plate placed on the side plate.

Mortar or concrete filled in the space between the side panels and the top panel.

〔Example〕

Hereinafter, this invention will be explained in detail based on the embodiment shown in the drawings.

In Fig. 1, 1 is a locking part 1 at both ends in the width direction.
This is a lower frame material in which portions a and 1a are erected and have an outflow hole 1b on the surface in contact with the ground. In the embodiment, the lower frame member 1 is formed of a rectangular steel plate,
A slit is formed in the middle part in the width direction over the entire length in the longitudinal direction, and this is expanded to form a wire mesh in the middle part of the lower frame member 1, and the mesh is used as the outflow hole 1b. In addition, as shown in FIG. 2, a plurality of outflow holes 1b may be provided. After all, it is sufficient if there is a hole through which the concrete flows out. Locking portions 1a, 1a bent upward are formed at both ends of the lower frame member 1 in the longitudinal direction. Other locking portions 1a, 1a may be groove-shaped as shown in FIG. This lower frame member 1 is placed on the ground of a slope so as to be inclined from above to below from one end to the other end.

The lower frame member 1 may be placed directly on the earth, but as shown in FIG. 2, mortar or concrete 6 of a certain width may be sprayed onto the earth and the lower frame member 1 may be made to protrude above the mortar or the like. Since the lower frame material 1 is installed after spraying mortar etc. 6 on the uneven ground, bending of the lower frame material 1 is also prevented, and even if the side plates 4, 4 are placed on the lower frame material 1, Lower frame material 1 and side plates 4, 4
There are no gaps in between.

A U-shaped gate-shaped support frame 2 is erected on the lower frame member 1. The gate-shaped support frame 2 is formed by bending a band-shaped steel plate into a U-shape, and is fixed to the lower frame member 1 by welding, bolts, nuts, etc.
Bolt insertion holes 2a are bored in the gate-shaped support frame 2a at appropriate intervals.

A plate-shaped top plate 3 and two side plates 4, 4 made of concrete are fixed to the gate-shaped support frame 2.
The top plate 3 is placed on the upper part of the gate-shaped support frame 2, and the side plates 4, 4 are fixed horizontally in equilibrium along the locking portions 1a, 1a, respectively. Top plate 3 and side plates 4, 4
Bolt insertion holes 3a and 4d are bored corresponding to the bolt insertion holes 2a of the portal support frame 2,
Bolts 5 are inserted into the bolt insertion holes 2a and 3a, or 2a and 4a, respectively, and fastened with nuts to be fixed to the gate-shaped support frame 2.

As mentioned above, the lower frame material 1, the top plate 3, the side plates 4, 4
A cylindrical formwork A is constituted by.

Reinforcing bars 7 are arranged within a space B within the formwork A. The reinforcing bars 7 are arranged before fixing the top plate 3 and the side plates 4, 4, and in the embodiment, four parallel reinforcing bars 7 are connected together by a square frame bar, and these reinforcing bars 7 is placed on the lower frame member 1.

The tip of the anchor 8 is inserted into a hole drilled in the top plate 3, and the nut 8a is screwed to fix the formwork A on the ground.

A foundation concrete 9 is constructed at the lower end of the formwork A, and mortar or concrete 10 is placed in a space B within the formwork A. The mortar or concrete 10 is not of low slump and is poured from above to fill the space B. Top plate or side plate 4
A hole may be bored in either of the holes, and mortar or the like 10 may be cast through the hole.

When the lower frame material 1 is placed directly on the ground without placing mortar or concrete 6, the mortar etc. 10 flows out from the outflow hole 1b of the lower frame material 1 and closes the gap in the ground.

A legal frame is constructed in a direction crossing the legal frame constructed as described above, and a grid-like legal frame is constructed as a whole.

That is, as shown in FIG. 5, reinforcing bars 7 are arranged between the vertically inclined slopes in a direction intersecting the frames, and on both sides of the reinforcing bars 7 are weir plates 11 made of wire mesh, etc. 11, and the weir plate 11,1
The legal framework is constructed by placing mortar or concrete between the two.

Furthermore, the slope according to this invention is extremely effective for stabilizing long and large slopes.

When cutting down mountains etc. to form a long slope, the 6th
As shown in the figure, the current ground mass T is gradually moved from above along the planned excavation line of the long slope L to slopes a, b...
A method of gradually forming e is adopted.

The problem with this construction method is the loosening of the ground before the construction of the legal framework. That is,
When forming the slopes a, b...e sequentially from above, initial loosening may occur, and collapse of the upper ground may occur during the work of forming the slopes below.

In addition, it has been found that initial loosening has a significant impact on long-term slope stability, and it is important to prevent early rock loosening for long-term slope protection.

If the lower frame material 1 of the legal frame according to this invention is used as a bearing plate, it is possible to prevent the initial loosening of the ground.

That is, in FIG. 7, when slopes a, b...e are formed gradually in stages, earth retaining is performed on slopes a, b...e at the same time as cutting down. Earth retention is performed by fixing the lower frame member 1 to the slope using anchors 8 as described above, and applying primary tension to the anchors 8 to perform earth retention. The lower frame member 1 serves as a bearing plate to prevent the initial loosening of the ground.

If the upper slope a is earth-retained, slope a will be prevented from collapsing, so the work of forming the lower slopes b, c, d, and e can be performed safely and quickly. Therefore, the earth retaining work for the upper slope is performed sequentially, and the lower slope is formed repeatedly to form a long slope L.

A top plate 3 and side plates 4 are installed in the manner described above on the lower frame material 1 used as a bearing plate, and concrete or the like 10 is poured to construct a legal frame. Build a legal frame in the direction that intersects the legal frame, and attach the second
By applying tension, it is possible to achieve long-term stability of the long slope.

[Effect of idea]

This invention has the above configuration and can obtain the following effects.

(a) Since the concrete top plate and side plates are fixed to the lower frame material and concrete, etc. is poured into the internal space, construction is simplified as there is no need to assemble or dismantle the formwork.

B. There is no need to spray concrete, etc., and no skilled workers are required. Further, the lower frame member can be used as a bearing plate, and can prevent the initial loosening of the ground when forming a long slope.

C. A locking portion is formed on the lower frame material, and the side plate can be easily erected along this portion, making the work easier.

Additionally, since the lower frame material is placed on the ground, the side panels and footboards can be assembled without being affected by the unevenness of the ground.

D. Since the lower frame material has drainage holes, the mortar or concrete poured inside will flow out from the drainage holes and close the gap with the ground, improving the stability of the legal framework.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the formwork for constructing the legal framework according to this invention, Fig. 2 is a perspective view of the legal framework constructed state, and Fig. 3 is a partially cutaway side view of the legal framework constructed state. Fig. 4 is a vertical sectional view of another embodiment of the formwork;
The figure is a perspective view of the legal frame, Figures 6 to 8 are explanatory diagrams of the sequence of constructing the legal frame on a long slope, and Figure 9 is a completed perspective view. A...Formwork, B...Space. 1...Lower frame material, 2
...Gate-shaped support frame, 3...Top plate, 4...Side plate, 5...
...Bolt, 6...Mortar or concrete, 7...Reinforcement, 8...Anchor, 9...Foundation concrete, 10...Mortar or concrete.

Claims (1)

[Scope of utility model registration request] A lower frame material with locking portions formed in parallel at both ends in the width direction and an outflow hole, two concrete side plates erected in parallel along the locking portions of the lower frame material, and a side plate top. A legal frame characterized by consisting of a concrete top plate placed on the roof, and mortar or concrete filled in the space surrounded by the side plates and the top plate.