JPH0316897Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to formwork for preventing slope collapse.

(Prior Art) Conventionally, slope reinforcement has mainly been carried out on a large scale by erecting scaffolding to form a formwork, filling the formwork with filler such as cement mortar, and hardening the formwork.

In addition, as a small-scale project,
There was a lattice device for earth retaining on slopes described in Publication No. 14522 and a method for stabilizing thick layered soil described in Japanese Patent Publication No. 1982-20340.

The former is a combination of groove materials arranged in a lattice pattern and arranged on a slope to improve drainage on the slope.

The latter is made by forming a mesh into a grid, spraying mortar, concrete, etc., and then spraying plant seeds.

(Problem to be solved by the invention) Conventionally, as mentioned above, the former example of a small scale is somewhat weak in terms of strengthening the slope, and the latter is expensive, and mortar,
A problem has been that when concrete, etc. cures and hardens, it is not possible to remove air that is mixed in with the concrete.

In view of these drawbacks, the present invention has been developed to make it easy to assemble the formwork when reinforcing the slope with filler such as cement mortar, and to easily remove the air space in the filler after filling with the filler. The object of the present invention is to provide a formwork for preventing slope collapse, which can harden the filler more strongly, reduce the number of workers, and reduce costs.

(Means for Solving the Problems) In the present invention, a bottom plate is provided at right angles to the side edge of a vertical plate to form a side plate having an L-shaped cross section, an exhaust hole is bored near the bottom plate of the vertical plate, and an exhaust hole is formed near the bottom plate of the vertical plate. a first frame body formed by arranging the bottom plates of a pair of side plates to face each other with the bottom plates facing inward, and connecting the required portions between each side plate via a support rod and the bottom plates via a bottom support plate; A bottom plate is provided at a right angle to the side edge of the vertical plate to form a side plate having an L-shaped cross section, an exhaust hole is bored near the bottom plate of the vertical plate, and the bottom plates of the pair of side plates face each other with the bottom plates facing inward. The required points between each side plate are connected via support rods, and the bottom plates are connected via a bottom support plate, and rectangular notches are provided at opposing positions of the vertical plates of both side plates. a second frame body formed by providing guide pieces facing outward at both ends of the notch, and connecting the bottom plates of both side plates at the positions where the notches are provided, via a support plate; The longitudinal end of the first frame is mounted between the guide pieces.

(effect) The operation of the present invention will be explained.

When using the slope collapse prevention formwork according to the present invention,
First, a second frame is installed at a predetermined position on the slope, the first frame is connected to the guide piece of the second frame to form a cross shape, and a large number of these are connected to cover the slope.

Next, the grooves of the first frame and the second frame are filled with a filler such as cement mortar, and the air in the filler is evacuated from the upper surface using a pressing piece or the like through the exhaust hole.

Next, the filler is cured to prevent the slope from collapsing.

(Example) Embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 1 to 5, the slope collapse prevention formwork 1 according to the present invention has a first frame body 7 and a second frame body 7, which will be described later.
It consists of a frame 11.

A flat bottom plate 2b is attached to the side edge of the flat vertical plate 2a.
are provided at right angles to form a side plate 2 having an L-shaped cross section, an exhaust hole 3 is bored near the bottom plate 2b of the vertical plate 2a, and the bottom plates 2b of the pair of side plates 2 are made to face each other with the bottom plates 2b facing inward. , through the support rods 6 at required points between each side plate 2, and between each bottom plate 2b through the bottom support plate 4.
A first frame body 7 is provided which is connected to each other via.

A flat bottom plate 2b is attached to the side edge of the flat vertical plate 2a.
are provided at right angles to form a side plate 2 having an L-shaped cross section, an exhaust hole 3 is bored near the bottom plate 2b of the vertical plate 2a, and the bottom plates 2b of the pair of side plates 2 are made to face each other with the bottom plates 2b facing inward. , through the support rods 6 at required points between each side plate 2, and between each bottom plate 2b through the bottom support plate 4.
vertical plates 2a of both side plates 2.
A rectangular notch 8 is provided in the opposing center portions, and guide pieces 9 are provided outwardly at both ends of this notch 8,
Bottom plate 2b of both side plates 2 at the position where this notch 8 is provided
a second frame 1 connected through a support plate 10;
1 is provided.

The longitudinal ends of the first frame 7 are fitted between the guide pieces 9 of the second frame 11, and are assembled together in a cross shape via bolts 12.

Grooves 5 are formed in the first frame 7 and the second frame 11, respectively.

The tip of the first frame 7 is slightly flat and has a flat bolt connection hole 13, and the tip of the second frame 11 is also slightly flat and has a flat bolt connection hole. 13, and the first frame 7 is provided between the guide pieces 9 of the notch 8 of the second frame 11.
The bolts 12 are screwed into the bolt connection holes 13 of the guide piece 9 and the bolt connection holes 13 at the tip of the first frame 7 to connect them and combine them in a cross shape. .

In this way, since the bolt connection holes 13 at each tip of the first frame 7 and the second frame 11 are bored in a flat shape, it is not only easy to assemble on a slope E, but also easy to assemble on a slope E. The first frame 7 and the second frame 11 can be partially inclined and combined along the uneven slope E.

When using the slope collapse prevention formwork 1 according to the present invention, as shown in FIG. A large number of these are connected to cover the slope E.

In addition, on the slope E of a steep slope, the support plate 10
The slope collapse prevention formwork 1 is fixed to the slope E by driving bolts, support columns, etc. into the support holes 14.

Next, the grooves 5 of the first frame 7 and the second frame 11 are filled with cement mortar, and the air in the cement mortar is evacuated from the upper surface through the exhaust hole 3 using a pressing piece or the like.

Next, the cement mortar is cured and hardened to prevent the slope E from collapsing.

Furthermore, when connecting, the tip end of the first frame 7 and both ends of the second frame 11 may be tapered to make the connection between them stronger.

In addition, in this example, cement mortar was filled in the groove 5 and hardened to prevent the slope from collapsing.
It does not necessarily have to be cement mortar, but any filler such as earth and sand may be used.

(Effect of the invention) According to the slope collapse prevention formwork according to the invention, the first
It is easy to assemble the formwork and the second formwork, and after connecting it to the required position on the slope and filling it with a filler such as cement mortar, it is easy to remove the air layer, which makes the filling harder to harden. , aiming to reduce the number of workers,
It can be made at low cost.

[Brief explanation of the drawing]

Figure 1 is a plan view of the second frame according to the present invention;
The figures are the same, a front view, Figure 3 is a plan view of the first frame according to the present invention, Figure 4 is the same, a front view, and Figure 5 is a perspective view of the slope collapse prevention formwork according to the present invention, Figure 6 is the same,
FIG. 3 is a plan view showing the state of use. Explanation of symbols of main parts, 1...Slope collapse prevention formwork, 2a...Vertical plate, 2b...Bottom plate, 2...Side plate, 3...Exhaust hole, 4...Bottom support plate, 5...
Groove, 6... Support rod, 7... First frame, 8... Notch, 9... Guide piece, 10... Support plate, 11... Second frame, 12... Bolt, 13... Bolt connection hole, 14...Support hole, E...Slope surface.

Claims (1)

[Claims for Utility Model Registration] A bottom plate 2b is provided at a right angle to the side edge of a vertical plate 2a to form a side plate 2 having an L-shaped cross section, and an exhaust hole 3 is bored near the bottom plate 2b of the vertical plate 2a. The bottom plates 2b of the pair of side plates 2 are faced to each other with the bottom plates 2b facing inward,
A first frame body 7 that connects required points between each side plate 2 via support rods 6 and between each bottom plate 2b via a bottom support plate 4, and a bottom plate 2b on the side edge of the vertical plate 2a. A side plate 2 is provided at right angles to form an L-shaped cross section, an exhaust hole 3 is bored near the bottom plate 2b of the vertical plate 2a, and the bottom plate 2b of the pair of side plates 2 is turned inward to face each other,
Required points between the side plates 2 are connected via support rods 6, and respective bottom plates 2b are connected via the bottom support plate 4, and rectangular notches 8 are formed at opposing positions of the vertical plates 2a of the side plates 2. A second frame is formed by providing a guide piece 9 in the outward direction at both ends of this notch 8, and connecting the bottom plates 2b of both side plates 2 at the position where this notch 8 is provided via a support plate 10. A slope collapse prevention formwork comprising a body 11 and a longitudinal end portion of the first frame body 7 mounted between the guide pieces 9 of the second frame body 11.