JPH04108914A - Structure for reinforced banking body - Google Patents

Abstract

PURPOSE:To simplify building operations of a banking and improve drainage capacity in the banking by laying a reinforcing sheet on one end of a water- permeable slope forming frame, and charging drainage materials and banking materials to form laminated plural layers. CONSTITUTION:A slope frame 11 to which water permeable wire nettings 14 are fixed and a ground contact frame 12 are joined and reinforced with an angle steel to manufacture a slope forming frame 1. Then the end part of a strong and water-permeable reinforcing sheet 2 such as geo-textile, etc., is fixed to the ground contact frame 12. Next a water-permeable sheet 3 is put over the slope frame 11 and the lower part of the sheet is overlapped with the reinforcing sheet 2. Further, drainage materials 4 are charged inside the slope forming frame 1 and wrapped with the upper part of the water-permeable sheet 3 not to drop down from the wire nettings. Banking materials 5 are charged in the area except the area where the drainage materials are charged, and thereafter the above operations are repeated to form a laminated banking body 5. Thus, the operating efficiency of building up banking, and drainage in the banking can be improved.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to the structure of a reinforced embankment body.

<Conventional technology> Conventional reinforced embankment construction methods include a construction method using sandbags.

That is, as shown in Fig. 5, a reinforcing sheet b made of ciotextile or the like is laid with sandbags a wrapped around its edges,
In this method, an embankment material C such as earth and sand is placed on the upper surface of the reinforcing sheet b, and the embankment material C is laminated in multiple layers to construct an embankment body.

<Problems to be Solved by the Present Invention> The conventional reinforced embankment construction method described above has the following problems.

<B> The conventional construction method uses a large number of sandbags a, and these sandbags a are made one by one by hand at the site by filling the bags with soil, etc., which is very time-consuming and reduces work efficiency. was causing a decline in

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<C> Since the sandbag a has low water permeability, drainage in the embankment due to rainfall etc. cannot be sufficiently carried out.

Therefore, the structural stability of the embankment body may be reduced.

(2) Drainage is particularly important when the slope is a type D retaining wall as shown in Figure 5, but when sandbags A are used, there are structural problems due to poor drainage. There is.

<Object of the present invention> The present invention was made in order to solve the above-mentioned problems, and provides a reinforced embankment body that can simplify the construction work of the embankment body and improve drainage performance in the embankment. The purpose is to provide a structure for

<Means for solving the problem> That is, the present invention provides a water-permeable frame forming the slope of an embankment, a reinforcing sheet laid with one end fixed to the frame, and a reinforcing sheet on the frame side of the reinforcing sheet. A reinforced embankment consisting of drainage material applied to the upper surface of the end and embankment material applied to areas other than the part where the drainage material is applied on the reinforcing sheet, and in which this embankment is laminated in one or more layers. It is the structure of the body.

<Description of the present invention> The present invention will be explained in detail below.

<A> Slope forming frame (Figs. 1 to 4) The slope forming frame 1 is a lightweight frame member manufactured in a factory.

For example, as shown in Figure 2.3, two rectangular slope frames 11 and ground frames 12 are joined at right angles on one side, and an angle 13 is attached as a reinforcing material between the two frame members. Possible structures such as

Further, a water-permeable wire mesh 14 is fixed to the slope frame 11 by welding or the like.

A plurality of slope forming frames 1 are then arranged at predetermined positions on the ground, as shown in Fig. 1.4.

When arranging them, place the grounding frames 12 on the ground toward the planned construction example of the embankment body, raise the slope frame 11, and form the slope of the embankment body with a plurality of slope frames 11. Make it.

<Exit> Reinforcement Sheet (Figure 4) Since the reinforcement sheet 2 is to take reaction force into the embankment to prevent the slope portion from collapsing, a sheet member having a predetermined strength is used.

For example, a known sheet member such as geotextile can be used.

In addition, the reinforcing sheet 2 is made of water-permeable material so that drainage in the embankment can be carried out well.

Then, one end of this reinforcing sheet 2 is fixed to the grounding frame 12 of the slope forming frame 1, as shown in FIG.

Then, the reinforcing sheet 2 is laid for a predetermined length on the side of the embankment where the construction is planned.

The laying length and area of the reinforcing sheet 2 are designed to provide sufficient frictional resistance during the embankment so that the slope portion of the embankment does not collapse.

<C> Water-permeable sheet (FIG. 4) As shown in FIG. 4, the water-permeable sheet 3 having a larger area than the slope frame 11 is placed on the inside of the slope frame 11.

At this time, the upper part of the water permeable sheet 3 is made to protrude from the upper part of the slope frame 11, and the lower part of the water permeable sheet 3 is overlapped with the reinforcing sheet 2.

This water-permeable sheet 3 is for preventing the drainage material 4 from falling through the holes of the wire mesh 14.

<2> Adding drainage materials and embankment (Fig. 1.4) Drainage materials such as crushed stones are placed in the slope forming frame 1 on which the reinforcing sheet 2 and the permeable sheet 3 are laid as described above using a shovel or human power. Insert 4.

Next, the upper part of the water-permeable sheet 3 is folded back toward the drainage material 4 to wrap around the drainage material 4 and prevent it from falling through the hole in the wire mesh 14.

Finally, embankment material 5 such as earth and sand is poured into a portion of reinforcing sheet 2 other than the portion where drainage material 4 is introduced.

The height of the filling material 5 is approximately equal to the height of the slope frame 11.

Thereby, since the reinforcing sheet 2 is buried in the embankment, it can serve as an anchor for the slope forming frame 1 and prevent the slope forming frame 1 from falling to the opposite side of the embankment.

By repeating the above operations upward and stacking the embankments, a multi-layer embankment as shown in FIG. 1 can be constructed.

When constructing a multi-layered embankment, stability can be improved by constructing the embankment in a stair-like manner with the upper part shifted inward than the lower part.

After the embankment is completed, retaining walls 6 and the like may be constructed by constructing formwork along the slope frame 11 and pouring concrete, or by spraying mortar.

<Effects of the Present Invention> Since the present invention has been described above, the following effects can be expected.

<A> In the present invention, a slope forming frame manufactured in a factory is arranged, and drainage material is introduced into the frame using a shovel car or the like.

Therefore, it is possible to save the labor of manufacturing a large number of sandbags one by one by manually filling the bags with soil and sand, as in the past.

Therefore, work efficiency can be dramatically improved.

〈Talking〉Conventional sandbags are heavy and tend to be stacked by hand, making stacking them extremely difficult.

On the other hand, since the slope forming frame of the present invention is a lightweight frame-like body, it can be easily stacked and installed.

<C> The slope forming frame is configured to allow water to pass through,
Drainage material is also added to this frame.

Moreover, this drainage material is not filled into a water-impermeable bag like conventional sandbags, but is directly placed into the frame.

Therefore, drainage in the embankment during rain or the like can be performed well, and the structural stability of the embankment body can be improved.

(2) When the slope construction is of a retaining wall type, it is advantageous because the drainage layer on the back side of the retaining wall can be easily constructed.

[Brief explanation of drawings]

Figure 1.2 Overall embankment structure of the present invention Figure 2.3: Explanation of slope forming frame Figure 4: Explanation of construction method Figure 5: Explanation of conventional technology

Claims (1)

[Claims] (1) A frame with water permeability that forms the slope of the embankment, a reinforcing sheet with one end fixed to the frame, and a drainage material placed on the upper surface of the end of the reinforcing sheet on the frame side; A reinforced embankment structure consisting of embankment material applied to areas other than the drainage material input area on the reinforcing sheet, and in which the embankment is laminated in one or more layers.