JPH0441725B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a formwork used to form a cast-in-place method frame by spraying on a slope.

(Prior art and its problems) Various types of cast-in-place frame construction methods using mortar or concrete spraying have been proposed.

Typical of these are one in which the formwork on both sides is wire mesh-like, the formwork on both sides is connected by horizontal sub-reinforcements, and the formwork is formed by further connecting the horizontal sub-reinforcements and reinforcing bars, and this formwork is One is to form a frame by spraying mortar or concrete inside the frame, the other is to form a frame from water-resistant cardboard or plastic, and the frame is formed by spraying mortar or concrete into the frame. The method proposed by the applicant in Japanese Patent Publication No. 58-20338 is to stretch a mesh over the slope, arrange reinforcing bars in a lattice pattern on top of it, and spray mortar etc. over it to form a slope frame. These three are representative.

In these slope construction methods, vegetation is often sprayed in a thick layer within the slope to create greenery.

By the way, most of the slope construction methods are carried out on hard and rough slopes, so even if a thick layer of vegetation base material is sprayed inside the slope, the fertilizer nutrients will not be absorbed. There was a shortage, and within a short period of time, green plants were declining due to lack of fertilizer.

It has also been pointed out that vegetation material sprayed close to the periphery of the legal frame is likely to absorb water and dry out, making it impossible for vegetation around the frame to grow. .

Furthermore, the applicant of the present application previously proposed the
No. 20338 (commonly known as soilcrete construction method) has the advantage that the strength of the slope is high because rebound does not enter the slope formed, but the width of the slope varies and it is difficult to hem the slope. The problem was that it was not possible.

Therefore, the inventors of the present invention have investigated various ways to solve the above problems all at once, and found that by attaching bags containing vegetation base material to both legs of the formwork, the above problems can be solved. We have arrived at the present invention because we think it can solve the problem all at once.

(Means for Solving the Problems) That is, the present invention provides a pedestal shaped pedestal arranged in a lattice shape with an end surface having a substantially inverted U-shape and having a ceiling portion with many open spaces and side portions made of a pair of mesh plates. This is a pedestal-shaped formwork equipped with a bag body, characterized in that the formwork has bags filled with vegetation material attached to both side legs.

(Example) The configuration of the present invention will be explained in detail below.

The pedestal formwork 20 of the present invention has a substantially inverted U-shaped end face having a ceiling part 5 having a gap large enough to allow mortar or concrete to be poured into it without any problem, and side parts 6 made of a pair of mesh plates.

The lower end of the side made of mesh plate of this pedestal formwork is
As shown in Figure 2, it is often made into a comb-like shape with the lower end protruding about 5 cm so that it can be installed on a slope through a wire mesh.

Incidentally, the pedestal-shaped formwork usually has a trapezoidal cross-sectional shape when installed, but it may also have a square or rectangular cross-section.

Next, the bag body 7 attached to the pedestal-shaped formwork will be explained. The bag body is filled with one or more types of vegetation materials such as fertilizer, water retention material, soil improvement material, etc. The material of the bag body is as follows. The bag is made of non-woven fabric from which fertilizer nutrients can be eluted, and has a diameter of approximately 30 mm.The materials used to fill the bag include slow-release, slow-release, and fast-release chemical fertilizers and soluble phosphorus fertilizer, and vermiculite as a water-retaining material. Examples of soil improvement materials include calcium carbonate, slaked lime, calcium silicate, bentonite, etc., and one or more of these are filled into a cylindrical bag.

The bag filled with the vegetation material described above is usually attached to the pedestal form by tying the bag to both legs of the pedestal form using No. 8 wire or vinyl-coated iron wire. , but is not limited to this.

This completes the pedestal-shaped formwork fitted with the bag of the present invention.

Next, we will explain the method of construction using the pedestal formwork equipped with the bag of the present invention.
First, a wire mesh 1 with a mesh size of about 5 cm is stretched over the entire surface of the slope 30, and one place is placed every 1 to 3 ^m2 .
Drive in and fix a lath pin 4 with a diameter of 9 mm and a length of 30 cm, dig a groove of about 10 cm in width and 30 cm in depth on the slope shoulder, wrap a wire mesh into the groove, and tighten it with a diameter of 16 mm and a length of 40 cm.
Drive in the anchor pin to secure it.

Next, if the rising height of the legs on both sides of the pedestal formwork is as high as 10 cm or more, one, two, or four reinforcing bars 2 with a diameter of about 10 mm are arranged in a lattice pattern on top of the wire mesh. When arranging four reinforcements, use hoop reinforcements 3, etc., and arrange the reinforcements in a lattice shape so that the reinforcing bars are located at the four corners of the hoop reinforcements. A pedestal-shaped formwork fitted with a bag is arranged to cover the reinforcing bars arranged as described above to form a lattice frame, and mortar or concrete is sprayed onto the lattice frame to form a legal frame.

On the other hand, if the rising height of the legs on both sides of the pedestal formwork with the bag attached is low, such as 10 cm or less, the pedestal formwork is arranged in a lattice pattern on top of the wire mesh, and the openings of the pedestal formwork are Reinforcing bars around φ10mm 2 are installed in the ceiling area where there are many
After the installation is complete, mortar or concrete is sprayed over it to complete the legal framework.

The cross-sectional shape of the slope frame to be formed is determined according to the situation of the slope, ranging from one with a bottom width of 20 cm, a top width of 15 cm, and a height of 15 cm, to a bottom width of 60 cm, a top width of 30 cm, and a height of 30 cm.
They can be made in a wide variety of sizes, and the size of the frame is often 1 to 2 meters square.

In this case, in order to prevent the rebound that scatters during the spraying of mortar or concrete from having a negative impact on the later greening method within the framework, cover the area surrounded by the framework with a rectangular covering such as vinyl sheets or pieces of paper cloth. Sometimes the body is stretched first.

Once the legal framework has been formed, in order to green the inside of the legal framework, plant seeds and vegetation materials are sprayed to a thickness of approximately 5 cm using a power sprayer to form a vegetation base layer, and vegetation soil bags are laid down. Common.

(Effects of the Invention) As described above, the present invention provides a pedestal-shaped formwork arranged in a lattice shape with an end face shape having a substantially inverted U-shape and having a ceiling portion with many open spaces and side portions made of a pair of mesh plates. , the pedestal-shaped formwork is equipped with bags filled with vegetation material on both legs, so the inside of the frame of the lattice frame formed on the slope is Since the four sides are surrounded by bags filled with vegetation material, even if greening is carried out within the garden frame, fertilizer nutrients are supplied from the bags filled with vegetation materials attached to the pedestal form, and the plants are not fertilized. It has become possible to grow stably for a long period of time without declining due to cutting.

In addition, if the bag attached to the pedestal form is filled with water retaining material, it will resist the absorption of water by the frame and prevent plants from dying due to dryness in the peripheral areas of the frame, allowing the entire area inside the frame to be covered. greening has become possible.

Furthermore, the pedestal-shaped formwork of the present invention solves the problems of the soilcrete construction method proposed by the applicant, in which the width of the slope varies and the hem of the slope cannot be hemmed. I was able to solve it.

[Brief explanation of drawings]

FIGS. 1 and 2 are perspective views showing one embodiment of a pedestal-shaped formwork equipped with a bag according to the present invention. Figures 3 and 4
The figure is a sectional view showing an example of a construction method using a pedestal-shaped formwork equipped with a bag body. In the figure, 1 is a wire mesh, 2 is a reinforcing bar, 3 is a hoop bar, 4 is a lath pin, 5 is a ceiling with a lot of transparency, 6 is a leg on both sides, 7 is a bag body, 8 is a wire, and 20 is a pedestal on which the bag body is attached The formwork 30 is a slope.

Claims (1)

[Claims] 1 In a pedestal-shaped formwork arranged in a lattice shape with a substantially inverted U-shape end face having a ceiling part with many open spaces and side parts made of a pair of mesh plates, both legs are filled with vegetation material. A pedestal-shaped formwork equipped with a bag body, characterized in that a bag body is attached.