JPH0684631B2 - Slope protection method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a slope protection method for preventing collapse or collapse of an inclined surface.

(Prior Art) Conventionally, various construction methods have been known as methods for protecting a slope. The concrete retaining wall method and the frame method are known.

Slope protection is performed on slopes that may have collapsed or collapsed, or have already collapsed or collapsed.

For example, in the frame method, the work of assembling the form from the bottom to the top of the slope and arranging the reinforcing bars, then placing concrete in the form, and disassembling the form after hardening the concrete While repeating the sequence, construct the slope frame up to the slope.

(Problems to be Solved by the Invention) As described above, the protection work on the slope is a work in an extremely dangerous situation.

For example, even in the case of the legal framework method, there is a risk of collapsing / falling down of the slope, and the work steps described above are sequentially performed, resulting in a long construction period and poor safety.

Then, this invention is made | formed in order to solve the said subject, and an object of this invention is to provide the slope protection construction method which can simplify the on-site construction of a legal framework and can shorten the construction period.

(Means for Solving the Problems) The present invention has the following configuration in order to solve the above problems.

The slope protection method of the present invention uses a cylindrical mold body having reinforcing bars arranged inside, and connects the mold bodies to construct a lattice-shaped frame body on the slope, and partially forms the mold body. It is characterized in that concrete or mortar is injected from the opened injection port to construct a slope on the slope.

In addition, when the mold body is tightened with a tightening material such as a reinforcing bar and concrete or mortar is injected into the mold body,
It is also possible to prevent the mold from expanding.

In addition, before constructing a grid-like frame body with molds on the slope,
The slope may be covered with a net beforehand.

(Operation) Next, the operation will be described.

The molds are combined to form a lattice-shaped frame, and concrete or mortar is injected into the mold from the injection port. Then, the concrete frame or mortar solidifies to complete the legal framework.

By arranging reinforcing bars in the mold body, a stronger legal frame can be constructed.

Further, by tightening the mold body with a fastener such as a reinforcing bar, the mold body does not bulge or deform when concrete or mortar is injected into the mold body.

It should be noted that by covering the slope sections partitioned by the slope frame with nets, it is possible to prevent the sediment from collapsing or collapsing.

(Embodiment) A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In this embodiment, in order to form a legal frame, a lattice-shaped frame body is installed on the slope by a combination of a cylinder type and a cross type.

The frame body 10 includes a tubular type 14, a joint type 20, a cross type 22 and a T-shaped type 24.
It can be constructed by combining the cross types (see Fig. 1).

Here, the structure of each type will be described.

As shown in FIGS. 2 (a) and 2 (b), the tubular mold 14 is provided inside the tubular mold body 14a with the reinforcing bars 18 ... Spaced from the inner peripheral surface of the mold body 14a by a spacer 16. It is held in a closed position (to ensure the so-called cover thickness). Further, the reinforcing bars 18 ... Are bound to the ring-shaped hoop reinforcing bars 19 and are held at predetermined intervals. On the other hand, each rebar 18 ... projects by the joint length from both ends of the mold body 14a.

To connect the tubular mold 14 and the crossed mold described later, the tubular joint mold 20 is also used. The joint die 20 is short and has a diameter slightly larger than that of the tubular mold 14, and can be fitted into the tubular mold 14. In addition, the splicing die 20 binds the reinforcing bars 18 protruding from the T-shaped 24 and the cross shape 22 with the reinforcing bars 18 protruding from the tubular shape 14, and then binds them together. To cover.

On the other hand, as a cross type, a cross-shaped cross 22 and a T-shaped T
There is a character shape 24 (see FIGS. 3 and 4).

The cross shape 22 and the T-shape 24 each have a cylindrical body formed in a cross shape and a T-shape, and the reinforcing bars 18 ...
In the same way as the above, spacers 16 ... and hoop rebars 19 ... are arranged. The tip of each reinforcing bar 18 ... projects from the opening by the length of the joint.

Next, a method of constructing a frame on the slope using each of the above-mentioned molds will be described together with a detailed structure mainly with reference to FIGS. 1 and 5.

 A lower end beam 30 is formed at the base of the slope.

The lower end beam 30 is formed by a combination of the tubular mold 14 and the T-shaped 24 which is a T-shaped intersecting type. As shown in FIG. 5, the T-shaped mold 24 is connected to the cylindrical mold 14 through the joint mold 20 at both ends. Similarly, a T-shape 24 is connected to the end of the cylinder 14 via a joint 20.

Similarly, the lower end beam 30 is made to have a predetermined length by the T-shape 24 and the cylinder 14.
To form.

A part of the lower end beam 30 is buried with earth and sand 32.

Concrete or mortar is injected from an injection port 25 formed in the horizontal portion of the T-shape 24.

The tubular mold 14 is connected to the vertical end of the T-shaped mold 24 through the joint mold 20, and the upper end of the tubular mold 14 is cross-shaped through the joint mold 20.
Connect 22.

The horizontal ends of the cross shape 22 connected from the T-shape 24 are connected to each other by connecting the adjacent cross shapes 22 to each other through the connecting shape 20 to form a tubular shape.
Connect at 14.

Inlet 23a at the bottom of the cross 22 and inlet 2 at the horizontal part
Inject concrete or mortar from 3b respectively.

In addition, if the cross shape 22, the T-shape 24, the joint shape 20 and the cylindrical shape 14 are fastened with fasteners 34 made of synthetic resin or rebar so that each die does not spread out when pouring concrete or mortar. Good (see Figure 6).

As described above, the first stage of the legal framework is constructed.

Subsequently, the second stage, the third stage, ... Of the legal frame are constructed in accordance with the work procedure described in 1) through the joint 20 on the upper end of the vertical portion of the cross 22.

In the top 10 of the frame, T-shaped instead of the cross 22
24 ... is connected to construct the upper end beam 31. The concrete injection port 25 of the T-shape 24 needs to be provided at the top position of the T-shape 24.

Then, by pouring concrete or mortar from the concrete pouring port 25, the legal framework is constructed.

Further, the rectangular partitions 36 of the frame 10 are covered with nets 38, respectively. The mesh 38 may be fixed by hooking or tying it to the fastener 34 (in FIG. 1, a part of the partition 36 is meshed).
38 is shown stretched).

The net body 38 ..., When the section 36 ...
It is better to work so as to cover each section 36 ...

The nets 38 ... constructed in this way can prevent the slopes from collapsing and collapsing, and each section 36 ... can hold seeds and seedlings of plants to promote greening. You can also

In the above embodiment, the entire slope may be covered with a net before the construction of the slope.
By doing this, it is possible to prevent the rocks etc. from collapsing during work,
You can work safely.

Further, in the above-mentioned embodiment, after forming the frame body 10 in every several stages, the legal frame may be constructed by injecting concrete or the like. In this case, due to the completion of the frame body 10,
It is possible to prevent the collapse of rocks and the like.

Further, in the above embodiment, each mold was partially tightened by the fastener 34, but the wire rod 40 such as a reinforcing bar was previously spirally formed.
May be wound so that the diameter of the frame body 10 is not expanded when the concrete body or the like is poured into the frame body 10 (see FIG. 7).

Next, another embodiment will be described.

In the above embodiment, the cross-shaped and T-shaped 22 and the T-shaped 24 are replaced by a cross-shaped cross-shaped block 42 and a T-shaped T-shaped block 44. In the cross block 42 and the T-shaped block 44, the reinforcing bars 18 ... 8 and 9 show the cross block 42 and the T-shaped block 44, respectively.

As shown in FIG. 10, in this embodiment, instead of the cross shape 22 and the T-shape 24, a cross block 42 and a T-shape are used.
The cross block 42 is used by using the letter block 44.
And T-shaped block 44 combined with the tubular type 14 to form a frame
It constitutes the ten.

In this embodiment, a cylindrical mold 14 similar to that of the above embodiment is used, but one for vertical use is provided with an inlet 46 for concrete or the like at the upper part, and one for horizontal use is provided with concrete at both left and right ends. Injecting ports 47, 47, etc. are provided in advance.

Then, when the frame 10 is formed using the cross block 42, the T-shaped block 44, and the tubular mold 14, the cross block 42
By supporting the connecting portion between the end of the T-shaped block 44 and the tubular mold 14 with the support bar 48, the assembled frame is not distorted. Further, if the cylindrical mold 14 arranged as a horizontal beam is held by the support bar 48 in order to maintain the vertical gap, it will not be deformed when concrete or the like is poured into the mold.

After the concrete poured into the cylindrical mold 14 hardens, the support bars 48 ... Are removed.

After that, as described above, each section 36 of the frame body 10 ...
Cover with 38. The mesh bodies 38 ... May be engaged by an appropriate engaging member provided on the frame body.

Since the frame surface is not necessarily a flat surface, the cylindrical molds 14 ... May be deformed according to the slope (see FIG. 11).

In each of the above embodiments, the lower end beam 30 is constructed so as to construct a base 50 from concrete or mortar as shown in FIG. 12, and to provide a convex portion 52 to which the cylindrical mold 14 ... Can be connected from the base 50. You can also do it.

In each of the above-described embodiments, when the frame body 10 is constructed, if there is no risk of collapse of rocks or the like, the frame body 10 may be fixed to the slope by an anchor, if necessary.

Although various descriptions have been given above with reference to the preferred embodiments of the present invention, it goes without saying that the present invention is not limited to the above-described embodiments, and many modifications are made without departing from the spirit of the invention. Of course, it can be applied.

(Effects of the Invention) Since the present invention is configured as described above, the following remarkable effects are exhibited.

1) A frame can be constructed by combining molds, and concrete or mortar can be driven into the frame, and the construction can be performed as it is as a slope slope, and the work period can be greatly shortened.

2) In addition, it is possible to construct a mold in advance in a factory or the like, which makes it possible to significantly reduce the construction time on site.

3) Since each mold is used as it is as part of the legal framework,
There is no need to remove the formwork.

4) By arranging reinforcing bars in each mold body, a stronger legal framework can be constructed.

5) Before the construction of the slope, by covering the slope with a net beforehand, it is possible to prevent the collapse of soil and sand, and it is possible to retain the seeds and seedlings of the plant and promote the greening of the slope.

[Brief description of drawings]

FIG. 1 is a front view showing a construction state of a law frame according to the present invention, FIGS. 2 (a) and 2 (b) are partially cutaway side views and front views of a tubular frame, and FIG. 3 is a cross-shaped front view, FIG. 4 is a front view of a T-shape, FIG. 5 is an explanatory view showing a construction state of a lower end beam, and FIG. 6 is a state in which a fastener is wound around a state where a cross shape and a tubular shape are connected via a joint type. FIG. 7 is an explanatory view showing a state in which the wire is wound around the outer peripheral surface of the cylindrical shape, FIG. 8 is a front view of the cross block, FIG. 9 is a front view of the T-shaped block, and FIG. The figure is a partial front view showing the assembled state of the method frame,
Figure 11 is an explanatory view showing the construction state when the slope is not flat,
FIG. 12 is an explanatory view showing a construction state of the lower end beam. 10 …… frame, 14 …… cylindrical frame, 16 …… spacer, 18 …… reinforcing bar, 20 …… joint type, 22 …… cross type, 24 …… T-shaped, 38 …… net body

Claims (3)

[Claims] 1. A cylindrical mold body having reinforcing bars arranged inside,
A feature is that the molds are connected to construct a lattice-shaped frame on the slope, and concrete or mortar is injected from the injection port that is partially opened in the mold to construct the slope on the slope. Slope protection method. 2. The mold is fastened with a fastening material such as a reinforcing bar,
2. The slope protection method according to claim 1, wherein the mold body is prevented from expanding when concrete or mortar is poured into the mold body. 3. The method for protecting a slope surface according to claim 1 or 2, wherein the slope surface is covered with a mesh in advance before the lattice-shaped frame body is constructed on the slope surface with a mold. .