Gabion, and manufacturing method of gabion

Abstract

To provide a gabion that is easy to manufacture and is highly convenient for workers.SOLUTION: A gabion 1 is manufactured by packing a plurality of pieces of mixture 20 containing aggregate including one or more of crushed stone, sand, and earth material, a cement-based solidification material, a granulation agent, and water, and molded into block shape, into a rectangular parallelepiped of a basket-like structure 10 formed of a diamond-shaped wire mesh 11. It is desirable that dimensions of a height H, a width B, and a length L of the basket-like structure 10 be integral multiple of dimensions of a height H2, a width B2, and a length L2 of the mixture 20 molded into a block shape to be packed into the basket-like structure 10.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a futon basket for increasing the resistance to rainfall on sloping ground portions such as river banks and slopes, and to a method for manufacturing the futon basket. [Background technology]

[0002] One of the construction methods used in disaster recovery and river improvement projects is a method that uses a "futon basket" made of wire mesh cage-like structures formed from galvanized iron wire or the like, with natural stones or crushed stone stuffed inside (see, for example, Patent Document 1).

[0003] Also, a futon basket that has been improved with the aim of increasing the strength of the embankment itself against rainfall is known (see Patent Document 2). The futon basket described in Patent Document 2 has increased strength against rainfall on sloping ground such as river banks and slopes, and is equipped with a basket-shaped structure made of a water-permeable material, and a water-permeable water-retentive material filled into the basket-shaped structure. This water-permeable water-retentive material is made by pouring a mixture containing aggregate including one or more of crushed stone, granulated sand, and earth material, a cement-based solidification material, a granulating agent, and water into a basket-shaped structure with a mesh size that does not allow the water-permeable water-retentive material to leak out, and then filling it with no gaps and solidifying it. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2007-255132 A [Patent Document 2] Patent No. 6860146 Summary of the Invention [Problem to be solved by the invention]

[0005] However, while the futon basket described in Patent Document 1 is effective at disaster recovery sites and the futon basket described in Patent Document 2 is used as an effective reinforcing means for the foot of a river embankment, the embankment body, and the back slope, workers need to pack natural stones or crushed stones into the wire mesh cage-like structure without leaving any gaps. In this way, the performance of the futon basket itself can be guaranteed, but there is a risk that skilled workers are required to manufacture the futon basket and that it may take a long time to manufacture.

[0006] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a futon basket that is easy to manufacture and highly convenient for workers. [Means for solving the problem]

[0007] The futon basket of the present invention is a mixture containing aggregate including one or more of crushed stone, sand, and earth material, cement-based solidification material, granulation agent, and water, and the mixture is molded into blocks, and multiple blocks are packed into a rectangular basket-like structure formed by wire mesh.

[0008] In this way, the futon basket is constructed by stuffing a predetermined amount of the mixture molded into a block of a predetermined size into a basket-like structure.

[0009] Here, the height, width and length dimensions of the cage-like structure are desirably integer multiples of the height, width and length dimensions of the mixture molded into a block shape to be packed into the cage-like structure. As a result, the mixture molded into a block of a predetermined size is packed into the cage-like structure without leaving any gaps.

[0010] In addition, the manufacturing method of the futon basket of the present invention includes the steps of producing a mixture containing aggregate including one or more of crushed stone, sand, and earth material, a cement-based solidification material, a granulating agent, and water, molding the mixture into blocks, and packing a plurality of the mixture molded into blocks into a rectangular basket structure formed of wire mesh at a factory or on-site where the futon basket will be used. Effect of the Invention

[0011] With this configuration, the futon basket of the present invention is constructed by stuffing a predetermined quantity of a mixture molded into blocks of a specified size into a basket-like structure, so that an operator can manufacture the futon basket simply by arranging the blocks (the mixture molded into blocks) inside the basket-like structure.

[0012] Furthermore, according to the manufacturing method of the futon basket of the present invention, it is possible to achieve the same effects as the futon basket of the present invention. [Brief description of the drawings]

[0013] [Figure 1] 1 is a schematic diagram of a futon basket structure according to an embodiment of the present invention. [Diagram 2] 1 is a schematic diagram of a futon basket according to an embodiment of the present invention. [Diagram 3] FIG. 2 is a schematic flow diagram showing a method for manufacturing a futon basket according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The following describes an embodiment of the present invention in detail. However, the description of the components described below is an example (representative example) of an embodiment of the present invention, and the present invention is not limited to the following content as long as it does not deviate from the gist of the present invention.

[0015] [Futon basket] As shown in Fig. 2, the futon basket 1 according to the embodiment of the present invention is a structure in which a mixture 20 molded into a block shape is packed into a basket-like structure 10. Note that the futon basket 1 is a structure in which the mixture 20 molded into a block shape is packed tightly without any gaps into the basket-like structure 10, but in the schematic diagram shown in Fig. 2, the mixture 20 is partially omitted.

[0016] As shown in FIG. 1, the cage-like structure 10 is a rectangular box-like member formed of a diamond-shaped wire mesh 11. In this embodiment, the diamond-shaped wire mesh forming the cage-like structure 10 has 130 meshes, and the wire diameter of the galvanized iron wire is 3.2 mm. The height H of the cage-like structure 10 is 500 mm, the width B is 1200 mm, and the length L is 2000 mm. Of course, the configuration of the cage-like structure 10 is not limited to this, and the wire diameter of the galvanized iron wire may be 4.0 mm, and the length L may be 3000 mm or 4000 mm.

[0017] The mixture 20 packed in the cage-like structure 10 contains aggregates including one or more of crushed stone, sand, and earth, a cement-based solidification material, a granulation agent, and water. More specifically, the mixture 20 is formed into a block of a predetermined size by solidifying a mixture of the above-mentioned materials. In other words, the mixture 20 is a roadbed material with permeability and water retention molded into a block. In this embodiment, the height H2 of the mixture 20 is 125 mm, the width B2 is 240 mm, and the length L2 is 20 mm. Of course, the dimensions of the mixture 20 (height H2, width B2, length L2) can be appropriately changed in design according to the dimensions of the cage-like structure 10 (height H, width B, length L).

[0018] The height H, width B, and length L of the cage-like structure 10 are integer multiples of the height H2, width B2, and length L2 of the mixture 20 molded into a block shape to be packed into the cage-like structure 10. In the case of the above-mentioned example dimensions, four mixtures 20 are arranged in the height direction, five in the width direction, and 20 in the length direction of the cage-like structure 10. That is, in Fig. 2, 400 mixtures 20 molded into blocks are packed tightly in the cage-like structure 10.

[0019] When lifting products at construction sites and manufacturing plants, the mixture 20 molded into a block shape that is filled in is heavy, so it is desirable that the cage-like structure 10 is strong and can be lifted. Various products from Matsui Wire Mesh Industrial Co., Ltd. (for example, MK Crushed Stone Box (cage frame for small stones)) as shown on the following website can be used for the cage-like structure 10. http: / / www.matsuikk.co.jp / product / civil_eng.html

[0020] Of course, if the futon basket is set up in advance at the construction site and then filled with the mixture 20 molded into a block shape, lifting is not necessary, so materials other than those described above can be used for the basket-like structure 10.

[0021] Although the configuration of the mixture 20 is not limited, in this embodiment, assuming that the height H of the cage-like structure 10 is 0.5 m, the width B is 1.0 m, and the length L is 2.0 m, the total volume of the multiple mixtures 20 packed in the cage-like structure 10 without gaps is 1.0 m. 3 It becomes. In this case, an example of the composition of the mixture per unit (block) is as follows: (1) Aggregate (particle size is as close to 0 mm (e.g. 0.075 mm, same below) to about 250 mm) For crushed stone, 0mm to 50mm is the mainstream. If local soil and sand is to be used, the thickness should be 0mm to 250mm. (2) Cement-based solidification agent (10 kg / m 3 ~150kg / m 3 ) (3) Aggregation agent (0.3L / m 3 ~2.0L / m 3 ) (4) Water (appropriate amount) A mixture containing these is formed and molded into a block shape using a vibration compression device.

[0022] In addition, since the size of the futon basket 1 to be manufactured varies depending on the site, the above-mentioned configuration can be changed appropriately according to the size of the futon basket 1 (the total volume of the multiple mixtures 20 to be manufactured). Specifically, even if the size of the futon basket 1 changes, the aggregate may remain within the numerical range mentioned above (for example, the particle size of the crushed stone is approximately 0 mm to 250 mm), but the cement-based solidifying agent and granulating agent can be changed as appropriate depending on the size of the futon basket 1, the soil quality at the site, and customer requests (for example, asking for it to be made harder).

[0023] Here, the granulating agent contains a polymer compound consisting of a complex of magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethyleneimine. In this embodiment, "(Product name) SS-M1" manufactured by Global Research Institute, Ltd. is used, which is diluted 30 to 60 times with water, but the agent is not limited to this. Also, instead of or in addition to crushed stone, sand or earth, or earth or crushed stone from the construction site, etc. can be used.

[0024] The above-mentioned mixture is placed in a container of a specified size, and then pressure and vibration are applied using a vibration compression device. During the solidification process, the action of the ions in the agglomerating agent causes the powder components of the rock contained in the crushed stone and the cement-based solidifying agent to form a three-dimensional agglomerated structure between adjacent crushed stone particles, generating a large number of continuous voids. The action of the cement-based solidifying agent solidifies these voids to a degree that they will not be destroyed by external forces, resulting in the formation of a mixture 20 that has both water permeability and water retention.

[0025] In addition, futon baskets are made by stonemasons who pack gravel into a basket-like structure, but in recent years there has been concern about a decline in stonemasons and a decline in gravel itself. However, with the futon basket 1 of the present invention, it can be easily manufactured by anyone, even if they are not skilled technicians, as it only requires lining up blocks (a mixture molded into blocks) inside the basket-like structure. Moreover, the futon basket 1 is easy to manufacture, and since the mixture 20 molded into blocks is packed tightly inside the basket-like structure 10, it has both water permeability and water retention.

[0026] Furthermore, if the gravel is small or of different sizes, it can be difficult to pack it into a basket-like structure, but the futon basket 1 of the present invention simply involves lining up blocks of a specified size (blocks of the same size), making it very easy for workers to pack it into a basket-like structure. Therefore, according to the futon basket 1 of the present invention, it is possible to provide a futon basket that is easy to manufacture and highly convenient for workers.

[0027] [Manufacturing method of futon basket] Further, with reference to FIG. 3, a method for manufacturing a futon basket according to the present invention will be described below.

[0028] First, a mixture is formed from aggregate, a cement-based solidification material, an aggregate forming agent, and water (step S100).

[0029] Next, the mixture is molded into a block shape using a vibration compression device (step S200). In this process of molding into a block shape, the mixture 20 is put into a container of a predetermined size, and then the mixture is compacted and cured by applying pressure and vibration using the vibration compression device.

[0030] Then, this mixture molded into a block shape is packed tightly into a basket-like structure. Here, the mixture molded into a block shape can be packed into a cage-like structure at the factory (step S301), or can be packed into a cage-like structure at the construction site (step S302).

[0031] For example, if it is difficult to pack crushed stone at the construction site because it is too narrow for heavy machinery to enter (if it is difficult to manufacture a futon basket at the construction site), the mixture molded into blocks can be packed into a basket-shaped structure in advance at a factory to manufacture the futon basket (step S301). In particular, if the construction site is on a steep slope, caution must be exercised against rainfall during construction, so a futon basket that has been manufactured in advance can be brought to the construction site on a desired construction day (for example, a sunny day) (step S400) and construction can be carried out.

[0032] Of course, if there are no problems as described above, the mixture molded into blocks can be packed into a basket-like structure at the construction site to manufacture a futon basket (step S302). Then, installation work can be performed at the construction site using a crane or the like (step S500).

[0033] Although the embodiment of the present invention has been described above, the described embodiment is merely an example, and the present invention is not limited to the contents thereof as long as it does not deviate from the gist of the present invention. For example, the dimensions of the plurality of mixtures 20 packed into the cage-like structure 10 do not all need to be the same, and may be different for each cage-like structure 10. [Industrial Applicability]

[0034] INDUSTRIAL APPLICABILITY The present invention provides a futon basket that is easy to manufacture and highly convenient for workers, and can be used in construction at various construction sites, making it industrially useful. [Explanation of symbols]

[0035] 1. Futon Basket 10 Cage-like structure 11 Diamond-shaped wire mesh 20 Mixture molded into blocks H Height of the cage structure B. Width of the cage structure L Length of the cage structure H2 mixture height B2 Mixture width L2 Length of the mixture

Claims

1. This futon basket is a mixture containing aggregate including at least one of crushed stone, granulated sand, and earth material, a cement-based solidification material, a granulating agent, and water, and is formed into blocks, with multiple blocks packed into a rectangular cage-like structure formed of wire mesh.

2. 2. The futon basket according to claim 1, wherein the height, width and length dimensions of the basket-like structure are integer multiples of the height, width and length dimensions of the mixture molded into blocks to be packed into the basket-like structure.

3. A step of producing a mixture containing aggregate including one or more of crushed stone, granular sand, and earth, a cement-based solidification material, a granulating agent, and water; forming the mixture into a block; A step of packing the mixture molded into a plurality of blocks into a rectangular parallelepiped cage structure formed of wire mesh at a factory or a site where the futon cage is used; A method for manufacturing a futon basket comprising the steps of:

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