JP2016169513A - Bag body for civil engineering work, and structure for civil engineering work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag body for civil engineering work, which can maintain a shape of a rectangular parallelepiped while embracing the whole of a fitter, and a structure for the civil engineering work.SOLUTION: A bag body for civil engineering work includes a square bag 20 with a central hole 21, and a plurality of embracing bands 30 that have base ends fixed to a part of the bag body 20. The entire perimeter of the filler 40 can be embraced by vertically winding the plurality of embracing bands 30 around the square bag through the central hole 21.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a civil engineering bag and a civil engineering structure that can be used for various civil engineering works in the ocean or land, and in particular, a civil engineering bag that can maintain the shape of a rectangular parallelepiped while restraining the displacement of the filling material, and The present invention relates to a civil engineering structure.

Civil engineering structures in which a drawstring bag is filled with a filling material are widely known (Patent Documents 1 and 2).
Patent Document 3 discloses a civil engineering structure in which an intermediate connecting material is pulled out from the bottom of a bag body through an opening, and the bottom net and the upper net are connected by an intermediate connecting material.
Patent Document 4 discloses a civil engineering structure that presents a rectangular parallelepiped in which a filling material is enclosed in a flexible rectangular parallelepiped bag.
Referring to FIG. 8, the rectangular parallelepiped back 80 has a total of five suspension belts 82 connected at one end to the center of the bottom surface 81 and the four corners of the bottom surface 81, and all these suspension belts 82 are connected to the rectangular parallelepiped back 80. It is pulled out of the back so that it can be lifted together in the center of the bag.

Japanese Utility Model Publication 1-1141815 JP-A-11-131447 JP 2003-129444 A Japanese Patent No. 3949156

The above-mentioned civil engineering structure has the following problems.
<1> Conventional civil engineering structures described in Patent Documents 1 and 2 have a structure in which an opening of a purse-like bag body is tied with a string or the like and a filling material is movably enclosed.
For this reason, the bag is worn out and damaged early due to repeated movement of the filling material by external force.
<2> The civil engineering structure disclosed in Patent Document 3 encloses the filling material in a state in which a certain degree of movement is allowed in order to ensure followability against unevenness.
For this reason, when a large wave force or the like acts, the filling material moves inside the bag body, and the bag body still has a problem of being damaged.
<3> In the civil engineering structure of Patent Document 3, the tightening force of the intermediate connecting material is not evenly transmitted to the entire bag body.
For this reason, the restraining force of the filling material by the bag body becomes weaker as the distance from the middle connecting material increases, resulting in variations in the restraining effect of the filling material.
<4> The civil engineering structure of Patent Document 4 cannot sufficiently restrain the filling material 83 because the bottom surface 81 of the rectangular parallelepiped bag 80 has low rigidity. The peripheral part hangs down around the center part of this, and the shape of the rectangular parallelepiped before lifting shown by the two-dot chain line cannot be maintained.
In particular, the civil engineering structure is more likely to be deformed as the rectangular parallelepiped back 80 becomes longer horizontally.

The present invention has been made in view of the above points. An object of the present invention is to provide at least one civil engineering construction bag and civil engineering structure.
<1> The shape of a rectangular parallelepiped can be maintained while holding the entire filling material.
<2> The effect of preventing damage to the civil engineering pouch is improved.
<3> The construction of civil engineering structures is easy.

The present invention is a square ring-shaped civil engineering bag body filled with a filling material inside and having a central hole penetrating vertically at the center and having a square ring-shaped accommodation space. A base bag that encloses the filling material in the housing space, and a base end is fixed to a part of the bag body so that it can be held over the entire circumference of the filling material via the rectangular bag, A plurality of holding bands having a length capable of winding the bag body vertically through the central hole.
In another aspect of the present invention, the rectangular bag has a rectangular bottom surface having a central hole, an inner surface surrounding the inner edge of the bottom surface, an outer surface surrounding the outer edge of the bottom surface, and a square shape defined by these three surfaces. And an upper lid for closing the upper opening of the ring-shaped accommodation space.
In another embodiment of the present invention, the base end of the holding band is fixed to the inner side surface of the square bag, and the front end side of the holding band extends upward from the square bag.
In another embodiment of the present invention, the holding band is a belt-like object, and a lifting loop is formed at the tip thereof.
In another embodiment of the present invention, a holding member for the holding band may be provided on the outer surface of the holding band.
The present invention is a civil engineering structure filled with a filling material, comprising the above-described civil engineering bag body, and a filling material enclosed in a rectangular ring-shaped accommodation space of a rectangular bag, and accommodated therein. A rectangular bag that covers and restrains the inner and outer circumferences of the filling material enclosed in the space and a plurality of holding bands that are wound and tightened around the rectangular bag through the central hole, hold the filling material over the entire circumference. It is characterized by forming a square hard lump by holding.

The present invention has at least one of the following effects.
<1> By using a bag for civil engineering comprising a rectangular bag that covers and restrains the inner and outer circumferences of the filling material, and a plurality of holding bands that are wound and tightened around the rectangular bag through the central hole. It is possible to produce a structure for civil engineering work that presents a rectangular parallelepiped while embracing the entire filling material.
<2> The square bag and the plurality of holding bands cooperate to restrain the entire filling material, whereby the filling material can be formed into a square hard mass that cannot be deformed.
Therefore, the bending strength, compressive strength, and shear strength are very high over the entire length of the civil engineering structure.
<3> Since the movement of the filling material enclosed in the rectangular bag can be restrained, the damage prevention effect of the civil engineering bag body is improved.
<4> A civil engineering structure that cannot be deformed can be manufactured by a simple operation of wrapping a holding band fixed to a part of a rectangular bag around the rectangular bag and lifting it.

Perspective view of a civil engineering pouch with a part omitted The perspective view which looked up from the lower part center part of the bottom for a civil engineering construction bag body partly broken Explanatory drawing of a civil engineering construction bag with a different top cover Perspective view of a civil engineering structure with a part broken away A perspective view of the civil engineering structure before tightening the hug band Sectional view of the civil engineering structure during lifting The top view of the structure for civil engineering work which abbreviate | omitted a part of holding band in explanatory drawing of another Example Cross-sectional model diagram of a civil engineering construction bag assumed by the present invention

  Embodiments of the present invention will be described below with reference to the drawings.

<1> Civil engineering bag (Figure 1)
The civil engineering bag body 10 includes a rectangular bag 20 having a central hole 21 and a plurality of holding bands 40 having one end fixed to an inner surface 22 facing the central hole 21 of the rectangular bag 20.

<2> Civil engineering structures (Figs. 3 and 4)
The civil engineering structure A includes a civil engineering bag 10 and a filling material 40 accommodated in the accommodating space 26 of the rectangular bag 20.

<3> Square bag (Figs. 1 and 2)
The rectangular bag 20 includes a rectangular bottom surface 23 having a square central hole 21 at the center, an inner side surface 22 surrounding the inner edge of the bottom surface 23, an outer side surface 24 surrounding the outer edge of the bottom surface 23, and each side surface of the outer side surface 24. Four upper lids 25 extending from the upper edge are provided, and a square ring-shaped accommodation space 26 is formed therein.
The height of the inner surface 22 is equal to the height of the outer surface 24.
Each outer surface of the outer surface 24 has one or a plurality of positioning members 28 that pass through the holding band 40 and restrict lateral movement.
In this example, the columnar hard keeper 27 is accommodated in the central hole 21 surrounded by the inner side surface 24. However, the hard keeper 27 has the central hole 21 when the filling 40 is put into the rectangular bag 20. Since it is only a mold material for securing, it is not essential and may be omitted.

<3.1> Planar shape of square bag In this example, the planar shape of the square bag 20 is a square, but may be a rectangle.

<3.2> Dimensions of the square bag In this example, the height of the square bag 20 is smaller than the length of one side of the square bag 20, but the height of the square bag 20 is equal to that of one side of the square bag 20. It may be equal to or longer than the length. Each dimension of the vertical and horizontal heights of the rectangular bag 20 is appropriately selected according to the use of the civil engineering structure A and the type of the filling material 40.
The length of one side of each side surface of the inner surface 24 is appropriately selected according to the use of the civil engineering structure A.

<3.3> Rectangular Bag Material The square bag 20 may be a synthetic fiber net, a sheet-like material, or a combination thereof excellent in flexibility and durability. It may be a water-permeable or non-water-permeable (water-impervious) material, or a stretchable or non-stretchable material.
The material of the rectangular bag 20 is appropriately selected according to the use of the civil engineering structure A and the type of the filling material 40.

<3.4> Upper Lid Since the upper lid 25 only needs to close the upper opening of the accommodation space 26, as shown in FIG. 3A, a single upper lid 25 having a window hole 25 a at the center or (b) in FIG. 2), the upper cover 25 may be two sheets in which a notch 25b is formed in the center of the opposite side.

<4> Holding Band The holding band 40 is a member that can be held by winding the entire circumference of the structure A for civil engineering work in the vertical direction through the central hole 21. It has a locking function, a holding function of the filling material 40 via the square bag 20, and a hanging function of the civil engineering structure A.
The base end of each holding band 40 is integrally fixed to each side surface of the inner side surface 22 of the square bag 20 by stitching, fusing, bonding, or the like.
A lifting loop 31 is formed at the tip of each holding band 40.

<4.1> Material of Holding Band The holding band 40 is made of flexible fiber, resin, etc., and its form is not limited to the illustrated belt-like material, but may be a rope-like material or a string-like material. Good.

<4.2> Full Length of Holding Band The holding band 40 has a total length that allows the entire circumference of the civil engineering structure A to be wound around the entire circumference or a plurality of circumferences through the central hole 21.

<4.3> Fixing position of the base end of the holding band In this example, a form in which the base end of each holding band 40 is fixed to the inner side surface 22 of the rectangular bag 20 will be described. The fixing position of the end is not limited to this form.
As another form, the base end of each holding band 40 is fixed over two surfaces of the bottom surface 23 and the inner surface 22 of the square bag 20, or the outer surface 24, the bottom surface 23, and the inner surface of the square bag 20 are fixed. It is also possible to fix across 22 surfaces.
In short, the base end of each holding band 40 is fixed to a part of the rectangular bag 20 excluding the upper lid 25, and the front end (free end) side of the holding band 40 can extend upward through the central hole 21. If it is.

<5> Filling material Filling material 40 is a hard granule that does not compressively deform. For example, aggregates such as crushed stones and cobblestones, lightweight aggregates, concrete glass, granulated products of incinerated ash, earth and sand, and the like can be used.
The material, specific gravity, size, and the like of the filling material 40 are appropriately selected according to the usage of the civil engineering structure A.

[Manufacturing method for civil engineering structure]
Next, an example of a method for producing the civil engineering structure A will be described.

<1> Filling with filling material (FIG. 5)
The filling material 40 is filled until the entire space 26 is filled with the upper opening of the square bag 20 open.
The holding band 30 and the upper lid 25 are removed so as not to obstruct the work when filling the filling material 40.
Further, when the three-dimensional shape of the rectangular bag 20 is maintained using a production frame (not shown), the filling operation of the filling material 40 can be performed smoothly.

<2> Closing the upper lid (Fig. 5)
Next, the upper cover 25 of the square bag 20 is put over and the accommodation space 26 is closed.
Finally, since the upper lid 25 with the holding band 30 closed is locked, a dedicated locking means for fixing the upper lid 25 is unnecessary.

<3> Winding of the holding band (Figs. 3 and 4)
Next, each holding band 30 extending upward from the central hole 21 of the rectangular bag 20 is wound around the outer circumferential surface of the rectangular bag 20 in one or more rounds in the vertical direction, and the tip of each holding band 30 is placed in the central hole. Pull upward from 21.
At this time, the holding band 40 is inserted into the positioning member 28 provided on the outer surface of the rectangular bag 20 to restrict the lateral movement of the holding band 40.
In addition, by providing a spacer in advance on the support surface of the production frame that supports the bottom surface 23 of the square bag 20, or by providing a band-shaped notch in advance on the support surface of the production frame, The holding band 40 can be easily wound using the band-shaped insertion space formed therebetween.

<4> Tighten the holding band (Figure 6)
The loop 31 of each holding band 30 extending upward from the central hole 21 is moored and lifted to the hook of the crane truck to complete the construction of the civil engineering structure A.
When the loop 31 of each holding band 30 is lifted, the internal filling material 40 is tightened in a planar manner via the rectangular bag 20 while each holding band 30 slides due to the weight of the filling material 40.
Therefore, the filling material 40 fastened via the square bag 20 and the plurality of holding bands 30 is transformed into a square hard lump 40a that cannot be deformed.
Since the filling material 40 can be tightened using its own weight, a dedicated tightening device is unnecessary.

  The civil engineering structure A thus manufactured is transported to the installation site as it is, or temporarily placed in a stock yard and used for desired civil engineering work in the ocean or land.

<5> Reason why the filling effect of the filling material is high The present invention is not a structure in which only the outer periphery of the filling material is covered with a bag like the conventional structure for civil engineering, and the bottom of the bag is belted It is not a structure that is lifted and supported by a member.
In the present invention, the rectangular bag 20 that covers and restrains the entire inner and outer peripheries of the filling material 40 enclosed in a square ring shape, and a plurality of holding bands 30 that are wound around the rectangular bag 20 vertically through the central hole 21 and tightened. The effect of restraining the filling material 40 is enhanced by the combination.
That is, the holding band 30 surrounds the four sides of the inner side surface 22, the upper lid 25, the outer side surface 24, and the bottom surface 23 of the square bag 20, and these four sides can be tightened with an equal force. The tightening force by the holding band 30 is transmitted to the entire filling material 40 through the rectangular bag 20.
Therefore, not only the surface layer of the filling material 40 but also the center portion thereof, the particles of the filling material 40 mesh with each other (interlocking effect) to form a square hard lump 40a. The bending strength, compressive strength, and shear strength are very high over the entire length of the square hard lump 40a.

<6> Reason why the holding band is pulled out from the center of the structure for civil engineering work A plurality of holding bands 30 by reversing the winding direction of the holding band 30 that has passed through the center hole 21 of the holding bag 20 It is also possible to pull out the tip of the bag from the outside (outer surface 24) side of the holding bag 20 and lift it.
When it is lifted in this state, a large bending moment is applied and the civil engineering structure A is warped in a dish shape.
The warp of the civil engineering structure A causes the holding force to loosen when the civil engineering structure A is installed in a flat installation place.
On the other hand, when a plurality of holding bands 30 are pulled out from the center hole 21 of the holding bag 20 and lifted, the bending moment is reduced and the civil engineering structure A is effectively prevented from warping in a dish shape. it can.

[Functions of civil engineering structures]
<1> Prevention of damage to square bags (Figure 3)
Since the structure A for civil engineering described above can secure a large holding area of the filling material 40 by the square bag 20 as compared with the conventional structure, the free movement of the filling material 40 is reliably and effectively restrained. be able to.
Therefore, the wear of the square bag 20 due to the free movement of the filling material 40 is prevented, and the durability of the square bag 20 is significantly improved.

  For example, it is possible to constrain the outer surface of the filling material by simply filling the filling material into the bag body and closing the top of the bag body, but the contact area between the filling material and the bag body can be reduced. Cannot secure large. Therefore, the binding force varies between the surface layer and the center portion of the filling material.

On the other hand, in the present invention, focusing on the contact area between the filling material 40 and the bag body, the rectangular bag 20 having the central hole 21 and a plurality of holding bands 30 are used in combination to hold the filling material 40. A large holding area (restraint area) was secured.
When the civil engineering structure A of the present invention is compared with a conventional civil engineering structure in which a purse-like bag is packed with a filling material, if the filling material 40 of both structures is the same amount The civil engineering structure A of the present invention has a significantly larger holding area with the filling material 40 than in the conventional structure.
Therefore, in the civil engineering structure A, not only the holding force does not vary between the surface layer and the central portion of the filling material 40, but also when the civil engineering structure A is installed in the ocean, Since free displacement can be reliably restrained, damage due to wear of the square bag 20 can be prevented over a long period of time.

<2> Prevention of Deformation of Civil Engineering Structure As described above, the embedding (restraint) action of the filling material 40 by the civil engineering bag 10 is only on the surface layer of the filling material 40 enclosed in the rectangular bag 20. Instead, it is also transmitted to the central portion, and the filling material 40 is held (restrained) in a surface to form the square hard lump 40a.
Therefore, the civil engineering structure A is not only difficult to deform its cross-sectional shape, but the entire shape of the civil engineering structure A is also difficult to deform. For example, even when installed at a site where large waves act, It becomes difficult for the civil engineering structure A to move from the installation location.

[Other embodiments]
In the following, other embodiments will be described. In the description, the same parts as those in the above-described embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

<1> Example in which a plurality of holding bands are wound around one side of a rectangular bag (FIG. 7)
In the previous embodiment, a description was given of a form in which one holding band 40 is wound around each side of the square bag 20 having a square ring shape. However, a plurality of holding bands 40 are provided on each side of the square bag 20. It is also possible to wind in a row.
Although FIG. 7 shows a form in which two holding bands 40 are wound around each side of the square bag 20 at intervals, three or more may be used.
Moreover, when the planar shape of the square bag 20 exhibits a rectangle, the number of windings of the holding band 40 on each side may be changed.
In addition, fixing the base end of each holding band 40 to the inner surface 22 is the same as in the previous embodiment.

In this example, since the holding range of the filling material 40 is expanded in the lateral direction, it is preferable when the civil engineering structure A is enlarged.
Multiple pieces may be fixed.

<2> Example in which the holding band is prevented from loosening The rectangular hard lump 40a tightened via the square bag 20 and the plurality of holding bands 30 has a sharp shape retention performance even if the holding band 30 is somewhat loosened. Although it does not fall, in order to maintain the shape retention effect of the structure A for civil engineering work, the clamping band 30 that has finished the fastening of the filling material 40 is fixed to hold the clamping force of the clamping band 30 It may be.
As a means for fixing the holding band 30, for example, a holding pin (not shown) is driven into the filling material 40 to fix the holding band 30, or the overlapping portion of the holding band 30 is slid with a known belt fixing tool. The holding band 30 can be prevented from loosening by being impossible to grip.

  In this example, the holding band 30 is surely loosened when the manufactured civil engineering structure A is transported and moved, or when it is installed at a site where external forces such as wave force and vibration are repeatedly applied. Can be prevented.

A ··· Civil engineering structure 10 · · · Civil engineering bag 20 · · · Square bag 21 · · · Central hole 22 of the square bag · · · Square bag The inner surface 23 of the rectangular bag 24 The bottom surface 24 of the rectangular bag 24 The outer surface 25 of the rectangular bag 26 The upper cover 26 of the rectangular bag 26 The storage space 28 of the rectangular bag・ Holding band positioning material 30... Holding band 40... Filling material 40 a.

Claims (6)

It is a square ring-shaped civil engineering bag body filled with a filling material inside and enclosed,
A square bag having a central hole penetrating vertically in the center, a rectangular ring-shaped accommodation space, and enclosing a filling material in the accommodation space;
A length that allows the base end to be fixed to a part of the bag body and can be wound vertically through the central hole so that it can be held around the entire circumference of the filling material via the rectangular bag. A plurality of holding bands having a thickness,
Civil engineering bag.   The rectangular bag has a rectangular bottom surface having a central hole, an inner surface surrounding the inner edge of the bottom surface, an outer surface surrounding the outer edge of the bottom surface, and an upper opening of a square ring-shaped accommodation space defined by these three surfaces The civil engineering bag according to claim 1, further comprising an upper lid that closes the container.   The civil engineering construction bag according to claim 2, wherein a base end of the holding band is fixed to an inner surface of the rectangular bag, and a leading end side of the holding band extends upward from the rectangular bag. .   The civil engineering construction bag according to any one of claims 1 to 3, wherein the holding band is a belt-like object, and a lifting loop is formed at a tip thereof.   The civil engineering construction bag according to any one of claims 1 to 3, wherein a positioning member for the holding band is attached to an outer surface of the holding band. A civil engineering structure filled with filling material,
The civil engineering bag according to any one of claims 1 to 5,
A filling material enclosed in a rectangular ring-shaped accommodation space of a square bag,
A rectangular bag that covers and restrains the entire inner and outer circumferences of the filling material enclosed in the accommodation space, and a plurality of holding bands that are wound and tightened around the rectangular bag through the central hole, so that the filling material is wrapped around the entire circumference. It is characterized by forming a square hard lump by holding it,
Civil engineering structures.

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