JP3133185B2 - Fabric formwork for concrete molding with artificial turf surface - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention is applicable to various civil engineering works.
Regarding a fabric bag-shaped formwork used for forming and protecting slopes such as dams and sloping grounds, artificial turf is integrally formed on the surface of a molded concrete layer after concrete injection, and concrete with excellent appearance is provided. The present invention relates to a fabric mold for concrete molding from which a layer can be easily obtained.

[0002]

2. Description of the Related Art Conventionally, in various civil engineering works, a concrete layer constructed for the purpose of forming or protecting a slope, forming a dam, a riverbed, and the like is prepared by injecting ready-mixed concrete into a bag-shaped formwork made of cloth. Many methods have been proposed for quickly and easily obtaining a concrete layer controlled to a required thickness, and for fabricating a concrete molding fabric for the method.

For example, in the first example of the prior art, as shown in Japanese Patent Publication No. 57-18012, the length of the weft portion forming the vertical wall of the form unit should be changed during weaving. There has been proposed a formwork having a thickness corresponding to the thickness of the concrete layer and capable of forming the outer surface of the formed concrete layer into a flat surface or a continuous surface having irregularities.

[0004] In the above-mentioned formwork, a desired concrete structure is formed by injecting ready-mixed concrete into the formwork. However, when the concrete layer is laid in a state where it is formed over the entire surface, the outer surface is reduced. It has a drawback that it has a white appearance and its surface smoothness, shape, etc., do not fit into a natural landscape rich in green, and unnaturalness is too conspicuous.

In a second example of the prior art, Japanese Patent Publication No. Sho 58
As shown in JP-A-47521, it is possible to form two layers, a concrete protective layer and a water-permeable backing layer, and the degree of freedom in adjusting the thickness of the protective layer is large. It is of the structure.

In this form, since the erosion of the concrete layer can be completely prevented, when the fabric form is used for protection of rivers, embankments, reservoirs, lake shores, and slopes, the form itself is not used. Even if the concrete is not strong, the purpose of protection against erosion and the like can be achieved if only the concrete layer is covered.

However, many of the places where formwork is used are
Because it is a place that comes in contact with water, it is generally a place with abundant greenery and a natural scenery, if a bare concrete structure is laid in a state where it is molded over the entire surface, the outer surface will take on a white color, The appearance, such as the smoothness and shape of the surface, did not adapt to the surrounding landscape rich in green, as in the first example, and there was a disadvantage that the unnaturalness was too conspicuous.

[0008]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, the present invention aims to reduce the sense of discomfort by harmonizing the scenery of a place covered with a concrete layer by a fabric form with the surrounding nature. It is an object of the present invention to provide a fabric mold capable of giving an artificial turf-like appearance to the outer surface of a concrete layer formed by the fabric mold.

[0009]

In order to solve the above-mentioned problems, according to the present invention, a cloth in which a raised pile is formed on the entire surface is arranged with its raised surface on the front side to form a surface material.
The fabric having no other pile is used as a lining, and at least two fabrics are used to form a bag structure.

[0010]

According to the structure of the concrete molding fabric frame of the present invention, the surface of the outer layer fabric on the front side has an artificial turf-like appearance in which raised piles are formed. By selecting the density, length or color of the yarn used for the pile, it acts to give the appearance of a natural turf and can improve the aesthetic appearance of the concrete layer formed by the fabric mold. .

When the form of the mold is a multi-layered bag, ready-mixed concrete is placed in the upper bag portion, gravel or the like is placed in the lower bag portion, and a multilayer protective layer of a concrete layer and a water-permeable layer is formed. When groundwater flows into the permeable layer, the water passes through the gravel layer and is discharged from the peripheral part of the bag, and drained, so that it is separated into the concrete layer formed on the other bag. The breakage of the layer can be completely prevented without providing a drain hole or the like.

[0012]

FIG. 1 shows a first embodiment, in which a front outer layer fabric 2 made of a cloth having a raised pile 21 formed on the entire surface is formed along with a back side outer layer fabric 3 and peripheral edges 4,5. Are sewn together and integrally joined to form a bag portion 6.

A raised pile 21 is disposed on the front side of the outer layer fabric 2, and no pile is formed on the other outer layer fabric 3 on the back side.

On the back surface of the base cloth 7 of the outer layer cloth 2 and on the surface of the base cloth 7 of the outer layer cloth 3, a large number of ring sections 8, 9 are arranged at positions facing each other and are arranged in the weft direction. I have.

The loops 8 and 9 are usually formed of thick and tough warps, and a reinforcing weft, which is omitted in the drawing, is formed in the ground structure of the region where the loops 8 and 9 are formed. Is arranged.

The outer fabric 2 forming the bag portion 6
And 3 are connected to each other by a connecting strip 10 made of a string or the like having water resistance and corrosion resistance similar to the ground tissue thread of the base cloth 7.

The connecting strip 10 may have a structure in which a string is fastened as shown in the figure, or may be a stainless steel strip with a hook. It is in place.

The length of the connecting strip 10 is previously selected according to the thickness of a protective layer or the like formed when concrete or gravel is filled, and is freely selected according to the application. Things.

The fabric of the base cloth 7 is rich in water permeability,
A material that is hard to penetrate cement particles and has high strength is required, and the material is not particularly limited. However, synthetic fibers such as vinylidene chloride, polyolefin, polyester, nylon, and vinylon are used in terms of durability. preferable.

The raised pile 21 formed on the surface of the outer layer fabric 2 has a diameter of 0.1 mm to 5 mm on the base cloth 7.
It is a loop pile or cut pile of a moderately fibrous strand, and the vegetation density is 1 to 200 per square inch.
And about 10 to 50 pieces per square inch give a natural turf-like appearance.

The base cloth 7 and the raised pile 21
Is preferably colored and may be any color that can image natural grass. In addition, this color may be the same color as the total number of yarns used for the pile, but it is more natural to use a mixture of different colors and use it as a pile yarn because the appearance is deeper and the appearance is deeper desirable.

The material of the pile 21 is usually a split yarn or a filament yarn, and in some cases, a spun yarn is twisted and used. One of the straightened parts is selected.

In order to make these loops napped, a tufting machine is generally used and tufted to the base cloth 7, but a three-layered knitted fabric having a pile in the middle by a double woven fabric or a double Russell machine is used. Can also be obtained by center-cutting in the pile.

The raised pile 21 vegetated on the base cloth 7 may be backed or backed as necessary, and the resin used for the backing has good adhesiveness to both the base cloth 7 and the pile material. Things should be chosen.

The construction method using the fabric mold 1 is performed by
Is spread from the shoulder of the slope to the base, and then concrete is press-fitted and filled into the bag portion 6 to form a slope protection layer adapted to the construction surface.

The thickness of the protective layer is also adjusted by the connecting strip 10.
The protective layer can be arbitrarily performed alone, and a smooth protective layer surface can be formed.

FIG. 2 is a partially cutaway perspective view showing a second embodiment of the mold according to the present invention.
Outer layer fabric 13 having raised piles 21 on the entire surface on the front side
The outer fabric 14 on the back side is integrally joined to the outer edges 15 and 16 at the peripheral edges 15 and 16 by sewing or the like to form a double bag body forming the bag portions 17 and 18.

This embodiment is also made of the same fiber material as that of the first embodiment, and the vegetation density, length, color and the like of the pile 21 are selected in the same manner.

The outer fabrics 13 and 14 and the intermediate fabric 1
A large number of ring portions 8 and 9 are arranged on the front and back surfaces of the second base cloth 7 at positions facing each other in the weft direction, and are connected by a connecting strip 10.

The first embodiment shown in FIG. 1 shows the shapes, materials and functions of the ring portions 8 and 9 and the connecting strip 10 and the structure of the ground portions 8 and 9 and the structure thereof. It has the same configuration as that of the above.

After the form 1 formed as described above is spread on the construction surface, concrete is injected into the bag portion 17 from an opening formed on a part of the side edge, and gravel is pressed and filled into the bag portion 18. A two-layer slope protection layer.

According to this structure, for example, if the bag portion 18 is filled with gravel, the bag portion 18 has water permeability, and when groundwater pressure flows in, moisture is diverted through the gravel layer and the periphery of the bag portion 18 is formed. Since the water is discharged from the portion 16 and drained, breakage of the concrete layer formed in the bag portion 17 can be completely prevented without providing a special drainage hole or the like.

The concrete layer to be formed has a bag 18
The unevenness of the slope is absorbed by the buffering action of the gravel layer filled into the surface, and is formed on a substantially flat surface.

Further, the gravel layer and the concrete layer can always maintain a constant mutual positional relationship by the fabric form without providing special fixing means.

FIG. 3 shows a third embodiment. In the first embodiment, the ring portions 8, 9 disposed on the back surfaces of the base fabrics 7 of the outer layer fabrics 2 and 3 are respectively opposed to each other. And a rope 20 is inserted through holes 19 provided in the base cloth 7 in place of the connecting strips 10 connecting the rim parts 8 and 9, respectively, so that the outer layer fabric 2 on the front side and the outer layer cloth on the back side are respectively inserted. 3 are bound so as to maintain a constant gap.

[0036]

According to the present invention, the outer surface of a concrete layer, which is a protective layer such as a slope formed by using a fabric mold, has an artificial turf-like appearance, and its color can be selected. Thus, there is an effect that an aesthetic appearance suitable for the surrounding scenery can be provided.

Unlike the natural turf, the raised pile having an artificial turf-like appearance can maintain its shape regardless of the season and for a long period of time, and does not require any special maintenance because it is an artificial object. It has the effect of maintaining the landscape.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a part of a first embodiment.

FIG. 2 is a schematic perspective view showing a part of the second embodiment.

FIG. 3 is a schematic perspective view showing a part of a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fabric formwork 2, 3 Outer fabric 6 Bag part 21 Napped pile

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-62-276122 (JP, A) JP-A-62-276126 (JP, A) JP-A-48-101706 (JP, A) JP-A-4- 131412 (JP, A) Japanese Utility Model Showa 56-46660 (JP, U) Japanese Patent Publication No. 57-18012 (JP, B2) Japanese Patent Publication No. 58-47521 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 17/20 104

Claims (1)

(57) [Claims] 1. A cloth having a raised pile formed on the entire surface thereof, the raised surface of which is arranged on the front side to form a surface material, and a cloth having no other pile is lined, and at least two of the front and back surfaces are formed. A concrete molding fabric form having an artificial turf-like surface, characterized by being formed into a bag structure with fabric.