Reinforced sandbag, reinforcement ring, temporary support base, and manufacturing method

Abstract

To efficiently construct temporary support bases for construction machinery, etc.SOLUTION: A method for manufacturing a reinforced sandbag includes steps of filling a sandbag with soil or stones while the sandbag is placed inside a cylindrically shaped reinforcing ring for reinforcing the sandbag, and moving the sandbag filled with soil or stones up and down in the vertical direction within the reinforcing ring. The temporary support base is a temporary support base in which a plurality of the reinforced sandbag is arranged in the horizontal direction.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to reinforced sandbags, reinforcement rings, temporary support bases, and manufacturing methods. [Background technology]

[0002] For example, Patent Document 1 discloses a method for forming sandbags to support earth pressure such as embankments, which comprises forming a closed bag body from a flexible sheet-like body having at least breathability, providing an injection port for a filler material in the bag body, forming a hollow frame member from a mesh body, storing the bag body within the frame member, and pumping the filler material through the injection port of the bag body to fill it. Patent Document 2 discloses a shape-retaining lifting type rectangular parallelepiped bag, characterized in that it comprises a rectangular parallelepiped bag filled with soil and sand, a first hanging body having one end fixed to the center of the inside of the bottom surface of the rectangular parallelepiped bag, and second to fifth hanging bodies, each having one end fixed to a point on the diagonal of the four vertices of the bottom surface of the rectangular parallelepiped bag at a predetermined distance from the center and each having the other end fixed to the first hanging body. Patent document 3 also discloses a shape-retaining lifting rectangular parallelepiped bag, which is characterized in that it comprises a rectangular parallelepiped bag in which soil and sand are packed, a base band provided on the diagonal of the rectangular parallelepiped bag, a rectangular prism-shaped lift band having one end connected to the intersection where the base bands intersect and the other end connected to a hanging section, a plurality of rectangular prism-shaped fixing bands surrounding the rectangular prism of the lift band, and a plurality of truss bands for each fixing band, one end of which is fixed between the lift band and the fixing band on each face of the lift band, and the other end of which is fixed to the base band at a point spaced a predetermined distance from the center of the lift band. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2-164928 [Patent Document 2] JP 2008-156815 A [Patent Document 3] JP 2009-046911 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to efficiently construct a temporary support base for construction machinery and the like. [Means for solving the problem]

[0005] The reinforced sandbag of the present invention comprises a sandbag and a belt-like reinforcing ring arranged to restrict at least a portion of the horizontal deformation of the sandbag.

[0006] Preferably, the reinforcing ring is made of a flexible sheet-like resin and is in close contact with the side of the sandbag, with the sandbag being confined inside the reinforcing ring in a cylindrical state.

[0007] Moreover, the reinforcing ring according to the present invention is a reinforcing ring for reinforcing sandbags, which is made of a flexible sheet and formed into a cylindrical shape.

[0008] Furthermore, the temporary support base according to the present invention is a temporary support base in which a plurality of the above-mentioned reinforced sandbags are arranged in a horizontal direction.

[0009] In addition, the manufacturing method of reinforced sandbags according to the present invention includes the steps of filling the sandbag with soil or stones while placing the sandbag inside a cylindrically shaped reinforcing ring for reinforcing the sandbag, and moving the sandbag filled with soil or stones up and down vertically within the reinforcing ring. Effect of the Invention

[0010] According to the present invention, a temporary support base for construction machinery and the like can be efficiently constructed. [Brief description of the drawings]

[0011] [Figure 1] 1 is a diagram illustrating a reinforced sandbag 1 according to the present embodiment. [Diagram 2] 2A to 2C are diagrams illustrating a reinforcing ring 10 in the present embodiment. [Diagram 3] 1 is a flowchart illustrating a method (S10) for manufacturing the reinforced sandbag 1. [Figure 4] 4 is a diagram illustrating each step (first half) of the manufacturing method shown in FIG. 3. [Diagram 5] 4A to 4C are diagrams illustrating the steps (latter half) of the manufacturing method shown in FIG. 3. [Figure 6] FIG. 1 is a diagram illustrating an example of use of the reinforced sandbag 1. [Figure 7] 1 is a diagram illustrating a connecting member 102. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the illustrated examples. FIG. 1 is a diagram illustrating a reinforced sandbag 1 according to this embodiment. As illustrated in FIG. 1 , the reinforced sandbag 1 comprises a sandbag 20 (i.e., a sandbag) filled with a filling material, and a belt-like reinforcing ring 10 arranged to restrict at least a portion of the horizontal deformation of the sandbag 20. The reinforcing ring 10 of this example is made of a flexible sheet-like resin, and is a sheet-like resin ring in which a belt-like mesh body is formed into an endless ring. The reinforcing ring 10 is in close contact with the side of the sandbag 20 when the sandbag is installed. The sandbag 20 of this example becomes a sandbag when filled with a filling material (soil or stones), and is confined inside the reinforcing ring 10 in a cylindrical shape.

[0013] FIG. 2 is a diagram illustrating the reinforcing ring 10 in this embodiment. As shown in Fig. 2, the reinforcing ring 10 is formed into a ring shape by connecting both longitudinal ends of a belt-shaped mesh sheet 100 with a connecting member 102. As shown in Fig. 7, the reinforcing ring 10 of this example is formed by overlapping both longitudinal ends of the mesh sheet 100 formed into a mesh shape with a rod-shaped connecting member 102 passing through the two ends. This makes the strength of the connecting portion equal to or greater than that of the base material of the mesh sheet 100. The material of the mesh sheet 100 may be any material with high tensile stress, such as heat-stretched polyethylene. The length of the mesh sheet 100 in the longitudinal direction (i.e., the circumferential direction of the reinforced sandbag 1) is 3.0 m to 3.5 m, and the length of the mesh sheet 100 in the lateral direction (i.e., the height direction of the reinforced sandbag 1) is 0.4 m to 0.6 m. The mesh of the mesh sheet 100 is desirably large enough that the filler (soil or stones) filled in the sandbag 20 cannot pass through, because this can prevent the filler from leaking out.

[0014] FIG. 3 is a flow chart illustrating a method for manufacturing the reinforced sandbag 1 (S10). 4 and 5 are diagrams for explaining each step of the manufacturing method shown in FIG. As illustrated in Fig. 3, in step 100 (S100), a worker connects both longitudinal ends of a reticulated sheet 100 to each other with a connecting member 102 as illustrated in Fig. 7, to form a cylindrical reinforcing ring 10 as illustrated in Fig. 4(A). In this example, the reticulated sheet 100 is a geogrid, and the connecting member 102 is a geogrid connector. In step 102 (S102), the worker places sandbags 20 inside the formed reinforcing ring 10, as shown in FIG. 4(B). In step 104 (S104), the worker fills the sandbags 20 placed inside the reinforcing ring 10 with filler (soil or stones), as illustrated in FIG. 4(C).

[0015] In step 106 (S106), as shown in Fig. 5(A), the worker shakes the sandbag 20 up and down inside the reinforcing ring 10 to smooth out the contents inside the sandbag 20. This brings the side of the sandbag 20 into close contact with the inner surface of the reinforcing ring 10, and the sandbag 20 is formed into a cylindrical shape. In step 108 (S108), the worker further fills the gaps generated in the sandbags 20 by the up and down movement with filling material, as shown in FIG. 5(B). In step 110 (S110), the worker closes the opening of the sandbag 20 filled with the filling material, and completes the reinforced sandbag 1, as shown in FIG. 5(C).

[0016] When a vertical load is applied from above to the reinforced sandbag 1 manufactured as described above while it is installed, internal stress is generated in the circumferential direction through the filling, and this internal stress is resisted by the tensile force of the reinforcing ring 10. In this way, the reinforced sandbag 1 becomes a sandbag that is reinforced against a load from the vertical direction.

[0017] FIG. 6 is a diagram illustrating an example of the use of the reinforced sandbag 1. As shown in Fig. 6, multiple reinforced sandbags 1 can be arranged horizontally to form a temporary support base. In this example, multiple reinforced sandbags 1 are arranged adjacent to each other horizontally and stacked vertically, and a steel plate is laid on the top surface of the top layer to form a temporary support base for construction machinery, etc. Such a temporary support base can be efficiently installed by manufacturing the reinforced sandbags 1 on-site, such as on a riverbed.

[0018] As described above, the reinforced sandbag 1 of this embodiment can efficiently manufacture a sandbag reinforced against a vertical load. Specifically, by wrapping the reinforcing ring 10 around the sandbag 20, the sandbag 20 can be restrained against stress from above, thereby increasing the supporting force of the sandbag 1. Moreover, with the reinforced sandbag 1 of this example, a temporary support base for construction machinery and the like can be set up relatively easily. Specifically, as shown in Fig. 7, the reinforcing ring 10 can be easily wound later by simply inserting the connecting member 102. Furthermore, the diameter of the reinforcing ring 100 can be easily adjusted by changing the position where the connecting member 102 is inserted (i.e., the connecting position of the mesh sheet 100). After the reinforced sandbag 1 is used, it can also be easily dismantled and separated.

[0019] Next, a modification of the above embodiment will be described. In the above embodiment, the reinforcing ring 10 is formed by connecting both longitudinal ends of the mesh sheet 100 on-site, and the sandbag 20 is placed inside the reinforcing ring 10. However, the mesh sheet 100 or the reinforcing ring 10 and the sandbag 20 may be transported to the site in an integrated state, and the reinforced sandbag 1 may be manufactured on-site. For example, a product integrated with a large sandbag 20 may also be manufactured. Furthermore, the reinforcing ring 10 is not limited to the above-mentioned mesh sheet, so long as it is a belt-like member that restricts at least a portion of the horizontal deformation of the sandbag. [Explanation of symbols]

[0020] 1 Reinforced sandbags 10 Reinforcement Ring 20 Sandbags

Claims

1. Sandbags and A belt-like reinforcing ring arranged to restrict at least a portion of the horizontal deformation of the sandbag; Reinforced sandbags having

2. The reinforcing ring is made of a flexible sheet-like resin and is in close contact with the side surface of the sandbag. The sandbag is confined inside the reinforcing ring in a cylindrical shape. The reinforced sandbag of claim 1.

3. A reinforcing ring for reinforcing sandbags, made of a flexible sheet and shaped into a cylindrical shape.

4. A temporary support base comprising a plurality of reinforced sandbags according to claim 1 arranged in a horizontal direction.

5. A step of filling the sandbag with soil or stones in a state where the sandbag is placed inside a reinforcing ring for reinforcing the sandbag that is formed into a cylindrical shape; a step of vertically moving the sandbag filled with soil or stones up and down within the reinforcing ring; A method for manufacturing a reinforced sandbag having the following structure.

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