WO2019193783A1 - 土木工事用袋体 - Google Patents

土木工事用袋体 Download PDF

Info

Publication number
WO2019193783A1
WO2019193783A1 PCT/JP2018/041133 JP2018041133W WO2019193783A1 WO 2019193783 A1 WO2019193783 A1 WO 2019193783A1 JP 2018041133 W JP2018041133 W JP 2018041133W WO 2019193783 A1 WO2019193783 A1 WO 2019193783A1
Authority
WO
WIPO (PCT)
Prior art keywords
knitted fabric
net
mesh
civil engineering
restraint
Prior art date
Application number
PCT/JP2018/041133
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
村上　義則
慎吾 井坂
聡史 川端
Original Assignee
前田工繊株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 前田工繊株式会社 filed Critical 前田工繊株式会社
Priority to MYPI2020005165A priority Critical patent/MY187153A/en
Publication of WO2019193783A1 publication Critical patent/WO2019193783A1/ja
Priority to PH12020551036A priority patent/PH12020551036A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B67/00—Apparatus or devices facilitating manual packaging operations; Sack holders
    • B65B67/02—Packaging of articles or materials in containers
    • B65B67/06—Manually-operable devices for closing bag necks, by applying and securing lengths of string, wire or tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/14—Suspension means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/28—Strings or strip-like closures, i.e. draw closures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/22—Large containers flexible specially adapted for transport
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/10—Open-work fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines

Definitions

  • the present invention relates to a bag for civil engineering work that can be used for various civil engineering works on the sea or land (for example, rooting, floor protection, glue covering, water control, etc.).
  • the civil engineering structure which is constructed by filling the inside of the bag for civil engineering with a filling material such as stone, has a weight of 1 to 4 tons, so it can be suspended by heavy machinery such as cranes.
  • Patent Documents 1 and 2 The conventional bag body is formed of a knitted fabric with a uniform knitted fabric basis weight (density and yarn amount), and the knitted fabric has a fine and uniform size so that the filling material does not leak out. ing.
  • the conventional bag for civil engineering has the following problems. ⁇ 1> Since the conventional bag body has an unfilled space of about 40 to 50% of the volume, the filling material follows the change in the shape of the bag body when the civil engineering structure is lifted or transferred. Move. Since the filling material moves inside the bag body, the bag body is rubbed and easily broken. ⁇ 2> The knitted fabric constituting the bag body is formed with a small mesh so that the filling material does not leak out. For this reason, since the bag body is poor in flexibility, it is difficult to spread when the bag body is expanded and set in the formwork, and since the weight is heavy, much labor is required for carrying and handling the bag body.
  • ⁇ 3> As a method for increasing the durability of the bag body, a method of increasing the fabric weight (density, yarn amount) of the entire knitted fabric is conceivable. However, increasing the fabric weight of the entire knitted fabric only increases the manufacturing cost of the bag body. However, the problem ⁇ 2> described above becomes serious. ⁇ 4> As described above, the bag body is required to have durability, low cost, easy handling, and the like, but a bag body that satisfies these plural characteristics has not been proposed yet.
  • the present invention has been made in view of the above points, and an object of the present invention is to provide a civil engineering bag excellent in low cost, moderate flexibility, and durability.
  • the present invention is a civil engineering bag body comprising a tubular knitted fabric, in which a bottom mesh is formed by narrowing the lower end of the cylindrical knitted fabric, and a filling material can be accommodated therein, and a civil engineering bag body Comprises a bottomed structure accommodating portion for accommodating the filling material, and a suspension portion integrally formed adjacent to the upper portion of the accommodating portion, and the accommodating portion includes a cylindrical restraint net and a restraint.
  • a bottom mesh for closing the lower end of the mesh, and the mesh of the knitted fabric constituting the restraint mesh and the basis weight per unit volume are suspended so that the stretch in the width direction of the restraint mesh is smaller than that of other portions.
  • the knitted fabric which comprises a part and a bottom net is comprised so that it may differ compared with the knitted fabric which comprises a part and a bottom net.
  • the mesh of the knitted fabric constituting the restraint net is formed smaller than the suspended portion and the bottom mesh, and the basis weight per unit volume of the knitted fabric constituting the restraint net is defined by the suspension portion and the bottom. It is formed larger than the knitted fabric constituting the net.
  • the knitted fabric of the part of the bag body where the side pressure of the filling material is most loaded is made smaller than the other parts to reduce the width direction elongation, while the bag body is subjected to the most load of the filling material side pressure.
  • the basis weight of the knitted fabric of this part was increased compared with other parts, and durability was improved.
  • the entire area of the restraint net or a part of the mesh is formed smaller than the suspension part and the bottom net.
  • the mesh of the knitted fabric constituting the hanging portion may be formed in a stepwise manner toward the opening.
  • a separate restraint band or a plurality of restraint bands may be provided around the restraint net.
  • the knitted fabric is formed of a Russell network in which knitting yarns are knitted in a single or double or more.
  • the present invention has at least one of the following effects.
  • the portion other than the storage portion can increase the mesh of the knitted fabric and reduce the amount of knitting yarn used in the entire knitted fabric, the bag can be manufactured at low cost, and is easy to carry and handle. .
  • Example 1 of this invention It is explanatory drawing of Example 1 of this invention, and is explanatory drawing of the structure for civil engineering using the bag for civil engineering construction Side view of the knitted fabric constituting the civil engineering bag Bottom view of a civil engineering bag with a part broken away Partial enlarged view of other knitted fabrics with different mesh of restraint It is explanatory drawing of the manufacturing method of the structure for civil engineering, (a) is explanatory drawing of the process of setting the bag for civil engineering work in a formwork, (b) is a filling material in the bag for civil engineering work.
  • the civil engineering structure 10 is filled with a civil engineering bag 20 (hereinafter referred to as “bag 20”) and the inside of the bag 20. Natural aggregate such as cobblestone, and filling material 30 such as concrete glass. In the present invention, the knitted fabric constituting the bag body 20 is improved.
  • the bag body 20 is formed of a knitted fabric, and includes a housing portion 21 having a bottomed structure that houses the filling material 30 and a hanging portion 25 that is integrally formed adjacent to the upper portion of the housing portion 21.
  • the bag body 20 can be formed by forming a cylindrical body using one or a plurality of knitted fabrics, and narrowing down and closing the bottom of the cylindrical body with the upper portion of the cylindrical body open.
  • the volume of the bag body 20 is appropriately selected according to the purpose of use, but a range of 1 m 3 to 4 m 3 is suitable for practical use.
  • Knitted fabric material The bag body 20 is formed of a knitted fabric having a hexagonal or rhomboid mesh.
  • a knitted fabric material for example, a knotless knitted fabric (for example, a Russell net, a knotless net, etc.) in which knitting yarns are knitted in a single or double or more can be used.
  • the knitting yarn of the knitted fabric for example, synthetic fiber yarns such as polyester fiber yarns, polyamide fiber yarns and polyacrylic fiber yarns, or natural fiber yarns such as cotton yarn and hemp yarn can be used alone or in combination. Practically, a Russell network in which synthetic fiber yarns such as polyester (1500d / 10 pieces) are knitted double can be used.
  • the knitted fabric constituting the bag body 20 has a multi-stage texture that differs depending on the portion thereof, and the elongation in the lateral width direction is partially in accordance with the portion of the bag body 20. It has been adjusted to. That is, the scale of the accommodating part 21 of the site
  • the “mesh” in the present invention is a mesh size (mesh size) when a knitted fabric is knitted, and does not indicate a mesh shape after processing into a bag shape.
  • a knitted fabric having a multi-stage texture change can be produced using a known knitting machine.
  • the storage unit 21 is a lower half portion of the bag 20 that stores the filling material 30, and includes a cylindrical restraint net 21a and a bottom net 21b that closes the lower end of the restraint net 21a. .
  • FIG. 2 shows a form in which the entire area of the restraint net 21a is formed with small meshes. However, as shown in FIG. You may form in multistage.
  • the mesh of the constraining net 21a may be a size that does not allow the filling material 30 to come out, and the practical mesh of the constraining net 21a is preferably in the range of 19 to 27 mm, for example.
  • Boundary Network The mesh of the boundary network 27 interposed between the restraining net 21a and the suspension part 25 is larger than that of the restraining net 21a and smaller than the suspension part 25.
  • the mesh of the boundary network 28 interposed between the constraining net 21a and the bottom net 21b is larger than that of the constraining net 21a and is smaller than that of the bottom net 21b.
  • a range of 27 to 32 mm is preferable.
  • the hanging part 25 is an upper half portion of the bag body 20 in which the filling material 30 is not accommodated, and an opening 26 is formed in the upper part thereof.
  • a suspension rope 23 having an endless structure is inserted through the knitted fabric and attached around the opening 26, and a tying rope 24 is inserted through the knitted fabric at a position closer to the opening 26.
  • FIG. 2 shows a form in which the scales of the hanging portions 25 are formed uniformly as a whole
  • the scales of the knitted fabric may be formed gradually and gradually from the lower level to the higher level.
  • the practical scale of the hanging portion 25 is preferably in the range of 32 to 47 mm, for example.
  • the suspension part 25 is a part that does not function to accommodate the filling material 30 and the mesh shape of the suspension part 25 is deformed vertically when suspended. Therefore, even if the mesh of the suspension part 25 is increased, the suspension part 25 can be There is no worry of the filler 30 leaking out.
  • the bottom end of the knitted fabric formed in a cylindrical shape is narrowed down and formed into a substantially circular plane, so that the mesh shape of the bottom mesh 21b is deformed vertically from the peripheral part to the center part. Even if the mesh of the bottom mesh 21b is increased, there is no concern that the filling material 30 leaks through the bottom mesh 21b (FIG. 3).
  • a form 40 is prepared that opens up and down and exhibits an inverted frustoconical shape (conical shape).
  • the bag body 20 is accommodated inside the mold 40, and the suspended portion 25 that is opened is folded outward and is put on the upper opening of the mold 40. Since the hanging portion 25 is formed with a large knitted fabric, the opening 26 can be easily opened, and the setting operation into the mold 40 can be easily performed.
  • FIG. 5B A predetermined amount of filling material 30 is put into the accommodating portion 21 of the bag body 20 using a heavy machine such as a backhoe.
  • the mesh of the constraining net 21a constituting the accommodating part 21 is set to a size that does not allow the filling material 30 to come out, and the mesh of the bottom net 21b constituting the accommodating part 21 is deformed vertically long. It does not escape to the outside through the mesh of the accommodating part 21.
  • the restraint net 21a not only restrains the filling material 30 but also increases the durability of the knitted fabric itself. Therefore, even if the civil engineering structure 10 is repeatedly displaced, the bag body 20 is not easily broken. .
  • Example 2 Other embodiments will be described below. In the description, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.
  • the bag body 20 of the present embodiment is made of a knitted fabric, and is adjacent to the upper portion of the storage portion 21 having a bottomed structure for storing the filling material 30.
  • the cylindrical suspension portion 25 is integrally formed, and the accommodating portion 21 is provided with the restraining net 21a and the bottom net 21b.
  • the knitted fabric constituting the bag body 20 may have a form in which the texture is changed in a multistage manner as in the first embodiment, or the entire knitted fabric may have a uniform texture.
  • the restraint band 29 is a non-stretchable belt or rope that restricts the lateral extent of the restraint net 21a to a certain range, and has a total length that is at least equal to or greater than the circumference of the restraint net 21a.
  • the restraint band 29 is inserted laterally through the mesh of the restraint net 21a, or attached using a separate binding material.
  • the number of restraint bands 29 to be installed is appropriately selected in consideration of the capacity of the accommodating portion 21 and the like.
  • Civil engineering structure 20 Civil engineering bag (bag) 21... Storage part 21 a of the bag body... Restraint net 21 b of the storage part... Bottom net 23 of the storage part.
  • Bag 26 Opening portion 27 ⁇ ⁇ ⁇ Boundary network 28 ⁇ ⁇ ⁇ Boundary network 30 ⁇ ⁇ ⁇ Filling material 40 ⁇ Formwork

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Textile Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Revetment (AREA)
  • Knitting Of Fabric (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
PCT/JP2018/041133 2018-04-05 2018-11-06 土木工事用袋体 WO2019193783A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MYPI2020005165A MY187153A (en) 2018-04-05 2018-11-06 Bag body for civil engineering work
PH12020551036A PH12020551036A1 (en) 2018-04-05 2020-07-02 Bag body for civil engineering work

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018073057A JP6401415B1 (ja) 2018-04-05 2018-04-05 土木工事用袋体
JP2018-073057 2018-04-05

Publications (1)

Publication Number Publication Date
WO2019193783A1 true WO2019193783A1 (ja) 2019-10-10

Family

ID=63788189

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/041133 WO2019193783A1 (ja) 2018-04-05 2018-11-06 土木工事用袋体

Country Status (5)

Country Link
JP (1) JP6401415B1 (zh)
MY (1) MY187153A (zh)
PH (1) PH12020551036A1 (zh)
TW (1) TWI667174B (zh)
WO (1) WO2019193783A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6875591B1 (ja) * 2020-10-30 2021-05-26 前田工繊株式会社 土木工事用袋体及び土木工事用構造物の製作方法
JP7138818B1 (ja) 2022-06-17 2022-09-16 前田工繊株式会社 土木工事用袋体の型枠装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240229397A1 (en) * 2021-05-07 2024-07-11 Kajima Corporation Bag body and method for producing bag body

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005054529A (ja) * 2003-08-07 2005-03-03 Fukui Prefecture ブロックマット用袋体、ブロックマットおよび補強地盤
JP6188184B1 (ja) * 2017-03-07 2017-08-30 前田工繊株式会社 土木工事用袋体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4818672Y1 (zh) * 1969-12-17 1973-05-28
CN2654525Y (zh) * 2003-10-26 2004-11-10 郑士元 一种网兜
JP4938543B2 (ja) * 2007-05-02 2012-05-23 キョーワ株式会社 袋体用製作枠および袋体の製作方法
KR101506900B1 (ko) * 2014-01-08 2015-03-30 주식회사 다윈 재사용이 가능한 매립재 운반용 망태

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005054529A (ja) * 2003-08-07 2005-03-03 Fukui Prefecture ブロックマット用袋体、ブロックマットおよび補強地盤
JP6188184B1 (ja) * 2017-03-07 2017-08-30 前田工繊株式会社 土木工事用袋体

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6875591B1 (ja) * 2020-10-30 2021-05-26 前田工繊株式会社 土木工事用袋体及び土木工事用構造物の製作方法
JP2022072789A (ja) * 2020-10-30 2022-05-17 前田工繊株式会社 土木工事用袋体及び土木工事用構造物の製作方法
JP7138818B1 (ja) 2022-06-17 2022-09-16 前田工繊株式会社 土木工事用袋体の型枠装置
WO2023243113A1 (ja) * 2022-06-17 2023-12-21 前田工繊株式会社 土木工事用袋体の型枠装置
JP2023184079A (ja) * 2022-06-17 2023-12-28 前田工繊株式会社 土木工事用袋体の型枠装置

Also Published As

Publication number Publication date
MY187153A (en) 2021-09-06
JP2019182456A (ja) 2019-10-24
TWI667174B (zh) 2019-08-01
PH12020551036A1 (en) 2021-04-26
JP6401415B1 (ja) 2018-10-10
TW201943615A (zh) 2019-11-16

Similar Documents

Publication Publication Date Title
WO2019193783A1 (ja) 土木工事用袋体
JP6589081B1 (ja) 土木工事用袋体および土木工事用構造体
JP3571005B2 (ja) 土木工事用のフレックスコンテナー
KR20180117291A (ko) 섬유돌망태 및 섬유돌망태 제조 방법
JP4766525B2 (ja) 相互に連結容易な袋材
JP2013241816A (ja) 土嚢用袋体、土嚢集合体及びそれを用いた立体土嚢集合体
JP6074535B1 (ja) 水工用大型土のう
JP6188184B1 (ja) 土木工事用袋体
JP5266266B2 (ja) 中詰め材の投入方法
JP3122398U (ja) 河川堤防
KR200473345Y1 (ko) 섬유돌망태 및 섬유돌망태 인양장치
JP7044335B1 (ja) 海底地盤の根固め構造および根固め方法
JP4084734B2 (ja) 土嚢袋に中詰め材を充填する方法
JP2007162167A (ja) 土木資材用袋
JP2000001828A (ja) 大型土嚢
JP3650712B2 (ja) 土木工事用袋材および中詰め材の袋詰め方法
JP6594154B2 (ja) 積み上げ土嚢構造体
JP2021173041A (ja) 土木工事用構造体
JP5259686B2 (ja) 袋詰玉石工用袋体用円筒状型枠
EP3816066B1 (en) Bag material and crushed stone placement method using bag material
JP2008063837A (ja) 土のう袋とこの土のう袋を用いた土のうの製作方法
JP2015209746A (ja) 土木用袋体及びその製造方法
JP6604698B2 (ja) 直方体フレコンバック
JP6757869B1 (ja) 繊維製布団篭の変形抑制構造及び繊維製布団篭
JP6614675B2 (ja) 中詰め材入り袋体の形成方法及び中詰め材入り袋体

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18913350

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18913350

Country of ref document: EP

Kind code of ref document: A1