EP3951064A1 - Corps de sac de terrassement et structure de terrassement - Google Patents

Corps de sac de terrassement et structure de terrassement Download PDF

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Publication number
EP3951064A1
EP3951064A1 EP20842971.2A EP20842971A EP3951064A1 EP 3951064 A1 EP3951064 A1 EP 3951064A1 EP 20842971 A EP20842971 A EP 20842971A EP 3951064 A1 EP3951064 A1 EP 3951064A1
Authority
EP
European Patent Office
Prior art keywords
bag body
rope
unhousing
mouth
filler material
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP20842971.2A
Other languages
German (de)
English (en)
Other versions
EP3951064A4 (fr
Inventor
Yoshinori Murakami
Shingo Isaka
Satoshi Kawabata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maeda Kosen Co Ltd
Original Assignee
Maeda Kosen Co Ltd
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 Maeda Kosen Co Ltd filed Critical Maeda Kosen Co Ltd
Publication of EP3951064A1 publication Critical patent/EP3951064A1/fr
Publication of EP3951064A4 publication Critical patent/EP3951064A4/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/56—Gates or closures operating by deformation of flexible walls
    • 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
    • E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
    • E02B3/127—Flexible prefabricated covering elements, e.g. mats, strips bags filled at the side
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0208—Gabions

Definitions

  • the present invention relates to a bag body for civil engineering work and a structure body for civil engineering work applicable for various sorts of civil engineering work such as foot protection work, shore protection work, and temporary foundation work in the river or ocean, or on land.
  • a structure body for civil engineering work obtained as a result of housing filler material in a bag body for civil engineering work has been well known.
  • a general bag body for civil engineering work includes a bag body made of net fabric having a mesh shape, a lifting rope of an endless structure looped around a mesh in proximity to an opening of the bag body so as to be attached to the bag body, and a mouth-narrowing rope for preventing the opening of the bag body from opening (Patent Document 1).
  • Bag bodies each of which has a mesh uniform in strength and size as a whole, but each of which is different from other in external dimension, have been used in accordance with their respective volumes (1 to 4 t) of filler material.
  • a method of manufacturing a structure body for civil engineering work through the use of a bag body for civil engineering work 50 described in Patent Document 1 is explained with reference to FIG. 8 .
  • the structure body for civil engineering work (50) thus completed is transported to a predetermined site and is laid thereon ((C) of FIG. 8 ).
  • Patent Document 2 discloses that a height of filler material is regulated at a certain level by a reinforcing belt looped around to be attached to a bag body for civil engineering work.
  • Patent Document 3 discloses that, in a state where a lifting rope is lifted after a bag body for civil engineering work is housed with filler material, an adjustment rope attached to the bag body in proximity to a top end of the housed filler material is adjusted in length so that a height and an outer circumferential dimension of a housing portion of the bag body housing the filler material could eventually be adjusted.
  • Patent Document 4 discloses a bag body for civil engineering work having some part through which a lifting rope is inserted formed thereon to be larger only in mesh size than other parts formed thereon so that a mesh through which the lifting rope is inserted could be prevented from being torn when the lifting rope is lifted.
  • the conventional bag bodies for civil engineering work or conventional structure bodies for civil engineering work had the technical problems below: [1] In the bag body for civil engineering work 50 described in Patent Document 1, a rate of a housing portion of the filler material 30 has been approximately a half of a total volume of the bag body 51, and the net fabric of the remaining unhousing portion has been arbitrarily deformable.
  • the reinforcing belt attached to a lower half of the bag body is not configured such that the free movement of the filler material at a top end (upper surface) is regulated but configured such that a side surface of the filler material housed in the lower half of the bag body is only tightened.
  • an area of an unhousing portion of an upper half of the bag body for civil engineering work is so large that, when such a bag body is translocated or stacked on top of another bag body, the filler material at a top end could easily overcome the reinforcing belt, and as a result, a tear has easily occurred in the net fabric.
  • the adjustment rope attached to the bag body does not have such a structure that the free movement of the filler material a top end (upper surface) is regulated but has only a function of adjusting a height and an outer circumferential dimension of the housing portion of the bag body.
  • the conventional bag body for civil engineering work could not solve both of the technical problems in manufacturing cost and in bag-body damage, simultaneously.
  • the bag body for civil engineering work described in Patent Document 4 having a part through which the lifting rope is inserted formed to be larger only in mesh size than the other parts formed thereon, is used.
  • an objective of the present invention is to provide a bag body for civil engineering work and a structure body for civil engineering work that could solve simultaneously a problem in bag-body damage caused by filler material and a problem in mesh torn as a result of lifting a lifting rope, as well as could suppress an amount of net fabric to be used thereby to reduce manufacturing cost of the bag body for civil engineering work.
  • Another objective of the present invention is to provide a bag body for civil engineering work and a structure body for civil engineering work that could secure flexibility so as to absorb unevenness on a laying site, as well as could suppress large translocation of filler material.
  • One aspect of the present invention is a bag body for civil engineering work including: a bag body having a mesh shape capable of housing filler material, wherein the bag body consists of a housing portion for housing a predetermined amount of filler material at a lower half thereof and an unhousing portion for not housing any filler material at an upper half thereof; a mouth-narrowing rope for opening/closing an opening of the bag body; and a lifting rope of an endless structure inserted through a mesh in an upper portion of the bag body so as to be attached to the bag body, characterized by being configured such that the bag body is capable of: being attached with an intermediate-mouth narrowing rope at a part of the unhousing portion thereof in a lower position with respect to the lifting rope; and having, when the lifting rope is lifted, a constriction occurring at a part of the unhousing portion thereof attached with the intermediate-mouth narrowing rope.
  • the unhousing portion may have: a shoulder portion formed at a lower half thereof with respect to the constriction as a boundary, the shoulder portion being capable of covering to hold a circumferential edge portion of a top end surface of filler material; and a neck portion formed at an upper half thereof with respect to the constriction as a boundary, the neck portion being attached with the mouth-narrowing rope and the lifting rope.
  • the lifting rope may be positioned between the mouth-narrowing rope and the intermediate-mouth narrowing rope.
  • Another aspect of the present invention is a structure body for civil engineering work having filler material housed therein, the structure body including: a bag body for civil engineering work as described in any one of the foregoing aspects; and filler material housed in the bag body for civil engineering work, wherein a circumferential edge portion of a top end surface of the filler material is covered to be held by an intermediate-mouth narrowing rope and a shoulder portion formed at a lower half of an unhousing portion of the bag body with respect to an attachment position, as a boundary, of the intermediate-mouth narrowing rope.
  • the amount of net-fabric usage for making the bag body could be reduced, and thereby, it is possible to make the bag body at a relatively low cost and to reliably prevent a mesh through which the lifting rope is inserted from being torn.
  • the entire range of the filler material could be covered to be held by the bag body combined with the intermediate-mouth narrowing rope.
  • the free movement of the filler material could be suppressed by the covering/holding action of the bag body, and thereby, it is possible to reduce effectively the net-fabric tear caused by the free movement of the filler material.
  • a low-cost low-strength rope could be applied, and a work of attaching the mouth-narrowing rope to the bag body and a work of mouth-narrowing the bag body could be simplified.
  • a structure body for civil engineering work 10 includes a bag body for civil engineering work 20 (hereinafter, referred to as "bag body 20") and filler material 30 which housed in the bag body 20.
  • bag body 20 a bag body for civil engineering work 20
  • filler material 30 which housed in the bag body 20.
  • the bag body 20 includes: a bag body 21 to be filled with filler material 30; a mouth-narrowing rope 26 attached to the closest position to an opening 22 of the bag body 21; a lifting rope 27 of an endless structure attached in a lower position with respect to the mouth-narrowing rope 26 in proximity to the opening 22 of the bag body 21; and an intermediate-mouth narrowing rope 28 attached in a lower position with respect to the lifting rope 27 at a distance from the opening 22 of the bag body 21.
  • Three ropes 26 to 28, the mouth-narrowing rope 26, the lifting rope 27, and the intermediate-mouth narrowing rope 28, are attached to the bag body 21 from the opening 22 toward a bottom portion 23 in this order.
  • the bag body 21 is a net-fabric made bottomed bag provided with the opening 22 and the bottom portion 23.
  • the bag body 21 consists of: a housing portion 24 for housing the filler material 30; and an unhousing portion 25 for not housing any filler material 30.
  • the bag body 21 manufactured in accordance with an amount of the filler material 30 to be housed (e.g., 1 to 4 m 3 ) is used, and such a bag body 21 is manufactured through the use of the net fabric having the minimum necessary area corresponding to the amount of the filler material 30 to be housed.
  • an extra-thick Raschel (Russell) net obtained by double knitting a synthetic fiber yarn such as polyester (1500 d/20 pieces, strength of 100 kgf/2 legs, or fracture elongation of 50%) may be used.
  • the unfolded shape of a mesh of the net fabric is a quadrangle or hexagon, and the entire range of mesh is uniform.
  • the size of mesh is set such that the filler material 30 is prevented from going out of the mesh, and a general mesh size is 25 to 50 mm.
  • a range within which the filler material 30 is housed inside the bag body 21 is defined as the housing portion 24, and a range without housing any filler material 30 immediately above the housing portion 24 inside the bag body 21 is defined as the unhousing portion 25.
  • a lower half of the unhousing portion 25 is defined as a shoulder portion 25a, and an upper half of the unhousing portion 25 is defined as a neck portion 25b.
  • the opening 22 is formed in an upper portion of the neck portion 25b, and the mouth-narrowing rope 26 and the lifting rope 27 are attached in advance around the opening 22.
  • the mouth-narrowing rope 26, positioned above the lifting rope 27, is a rope for opening and closing the opening 22 of the bag body 21, and such a rope is attached to the bag body 21 such that it is inserted through the mesh in proximity to the opening 22.
  • the lifting rope 27 is a rope, of an endless structure, attached to the bag body 21 such that it is inserted through the mesh between the mouth-narrowing rope 26 and the intermediate-mouth narrowing rope 28.
  • the intermediate-mouth narrowing rope 28 is a composite rope having the function of causing a constriction to occur at a part of the unhousing portion 25 so as to cover to hold the filler material 30 as well as the function as a mouth-narrowing rope.
  • the intermediate-mouth narrowing rope 28 is attached to the bag body 21 by being inserted through an intermediate portion of the unhousing portion 25, i.e., by being inserted through the mesh between an attachment position of the lifting rope 27 and a top end of the filler material 30.
  • the intermediate-mouth narrowing rope 28 is attached so as to cause the constriction to occur at the part of the unhousing portion 25 in order that a lifting angle with respect to a top portion of the bag body 21 (neck portion 25a) is reduced, when the lifting rope 27 is lifted, so as to prevent the mesh through which the lifting rope 27 is inserted from being torn, and that, after the structure body for civil engineering work 10 is laid, a circumferential edge portion of a top end surface of the filler material 30 is elastically covered to be held with the shoulder portion 25a of the unhousing portion 25.
  • the attachment height of the intermediate-mouth narrowing rope 28 and the size of the occurring constriction are selected appropriately in consideration of an external dimension of the bag body 21, and an amount of the filler material 30 to be housed or the like.
  • natural aggregates such as a boulder, concrete rubble, fired material of various sorts of wastes, or the like may be applied.
  • such filler material 30 has a diameter of approximately 150 mm, and a size of the filler material 30 may be selected appropriately in accordance with purposes.
  • a mold 40 in an inverted truncated-cone shape (grinding-bowl shape) having both sides longitudinally opened is prepared.
  • the bag body 21 is set inside the mold 40.
  • the bag body 21 in proximity to the opening 22 widely opened is outwardly folded so as to cover a peripheral edge of an upper opening of the mold 40.
  • a predetermined amount of the filler material 30 is put into the bag body 21 through the use of heavy machinery such as a backhoe.
  • the intermediate-mouth narrowing rope 28 attached to the unhousing portion 25 is narrowed to a predetermined circumferential length whose diameter is less than a diameter of the housing portion 23, while the bag body 21 being set inside the mold 40, and then, both ends of the intermediate-mouth narrowing rope 28 are firmly tied to each other by a tie or the like so as to be prevented from being easily released from each other.
  • Such a "predetermined circumferential length” includes a circumferential length of a constriction at which, by the constriction caused to occur by the intermediate-mouth narrowing rope 28 of said length, both of: the function of preventing the mesh through which the lifting rope 27 is inserted from being torn after the completion of the structure body for civil engineering work 10; and the function of covering to hold the top end surface of the filler material 30 with the shoulder portion 25a of the unhousing portion 25, could be performed.
  • the step of narrowing the intermediate-mouth narrowing rope 28 is started from a state where the unhousing portion 25 is untightened (loosened), and therefore the narrowing could be performed with a relatively small force.
  • the intermediate-mouth narrowing rope 28 may be attached to the bag body 21 in advance, or may be attached to the bag body 21 on a laying site after completing the step of putting the filler material 30 into the bag body 21.
  • the mouth-narrowing rope 26 is narrowed so as to close the opening 22 of the bag body 21.
  • the mouth-narrowing rope 26 is positioned above the lifting rope 27, and therefore, the opening 22 could be closed without being affected by the lifting rope 27.
  • FIG. 4 shows the opening 22 in a state where it is opened for indicating its position; however, the opening 22 is actually closed to such an extent that the filler material 30 is prevented from leaking out from the bag body 21.
  • step of narrowing the mouth-narrowing rope 26 and the step of narrowing the intermediate-mouth narrowing rope 28 may be performed in this order, or vice versa.
  • Halfway portions of the lifting rope 27 inserted through the mesh of the bag body 21 are drawn in loop shapes from a plurality of parts (e.g., six parts) of the bag body 21, and a plurality of the relevant parts of the lifting rope 27 are hung on a hook 29 of a crane or the like.
  • the lifting rope 27 is lifted so as to take the bag body 21 out from the mold 40, and as a result, the structure body for civil engineering work 10 is finished being manufactured.
  • the structure body for civil engineering work 10 thus completed is transported to a predetermined site and is laid thereon ( (D) of FIG. 3B ).
  • FIG. 5 shows (A) reference of the bag body 21 lifted through the lifting rope 27 without any intermediate-mouth narrowing rope 28, and (B) example of the bag body 21, according to the present invention, attached with the intermediate-mouth narrowing rope 28 at a part of the unhousing portion 25 while being lifted through the lifting rope 27.
  • the bag bodies 21 shown in (A) and (B) of FIG. 5 are assumed to be the same in size and in amount of the housed filler material 30.
  • the lifting angle formed, when the bag body 21 is lifted through the lifting rope 27, without any intermediate-mouth narrowing rope 28 is assumed to be ⁇ 1
  • the lifting height of the unhousing portion 25 is assumed to be H 1 .
  • the lifting height H 2 of the unhousing portion 25 of the example according to the present invention is shorter in length than the lifting height H 1 of the unhousing portion 25 of the reference by a level of height corresponding to the constriction caused to occur by the intermediate-mouth narrowing rope 28 provided at a part of the unhousing portion 25 ( H 1 > H 2 ).
  • the lifting angle ⁇ 1 with respect to the unhousing portion 25 and the lifting height H 1 of the unhousing portion 25 are so related as to affect each other.
  • the lifting angle ⁇ 2 with respect to the neck portion 25b and the lifting height H 2 of the unhousing portion 25 are not so related as to affect each other, and therefore the lifting angle ⁇ 2 with respect to the neck portion 25b could be reduced without being affected by any lifting height H 2 of the unhousing portion 25.
  • the lifting height H 2 of the unhousing portion 25 could be reduced as well as the lifting angle ⁇ 2 with respect to the neck portion 25b through which the lifting rope 27 is inserted could be reduced, and as a consequence, an amount of net fabric to be used for making the bag body 21 could be reduced while the mesh through which the lifting rope 27 is inserted could reliably be prevented from being torn.
  • a method of tying the intermediate-mouth narrowing rope 28 after the lifting rope 27 is lifted may be considered.
  • Such a constriction-formation method connotes the occurrence of a problem that the mesh of the bag body 21 through which the lifting rope 27 is inserted is torn at the beginning of the lifting as well as a problem that a relatively large tightening force for tightening the unhousing portion 25 applied with a tension is needed.
  • the intermediate-mouth narrowing rope 28 is attached to a part of the unhousing portion 25 in such a manner that said part is prevented from being enlarged in diameter before the lifting, and then, a constriction is caused to occur at said part of the unhousing portion 25 with the aid of a lifting force.
  • FIG. 6 shows a reference having the filler material 30 housed therein, and thereafter, having the entire range including the top end surface of the housed filler material 30 tightened firmly by the bag body 21 through the intermediate-mouth narrowing rope 28.
  • the filler material 30 is a hindrance to such an extent that it is difficult to tighten firmly the intermediate-mouth narrowing rope 28 only with a force exerted by a human operator, and a burden of load for enlarging the intermediate-mouth narrowing rope 28 in diameter at the time of the lifting is extremely enlarged.
  • FIG. 7 showing a state where the structure body for civil engineering work 10 is laid on a laying site.
  • a group of pieces of filler material 30 is to be extended in a horizontal direction.
  • the circumferential edge portion of the top end surface of the filler material 30 is elastically covered to be held with the shoulder portion 25a of the unhousing portion 25.
  • the entire range of the group of pieces of filler material 30 could be elastically covered to be held, by a combination of the bag body 21 and the intermediate-mouth narrowing rope 28, by taking advantage of the elasticity of the net fabric of the housing portion 24 and the shoulder portion 25a of the unhousing portion 25 of the bag body 21.
  • the free movement of the filler material 30 could be suppressed by the covering/holding action of the bag body 21, and thereby, it is possible to reduce effectively the net-fabric tear caused by the filler material 30.
  • the intermediate-mouth narrowing rope 28 could, in a cooperative relation with the shoulder portion 25a of the unhousing portion 25, not only cover to hold the filler material 30 but also serve as a mouth-narrowing rope.
  • the collapse of the filler material 30 could be effectively suppressed by the shoulder portion 25a of the unhousing portion 25 of the bag body for civil engineering work 20, and thereby, it is possible to resolve a technical problem of the net-fabric tear caused by the collapse of the filler material 30.
  • the entire range of the group of pieces of filler material 30 could be elastically covered to be held, by the housing portion 24 of the bag body 21 in a cooperative relation with the shoulder portion 25a of the unhousing portion 25 attached with the intermediate-mouth narrowing rope 28.
  • the spill of the filler material 30 housed in the bag body 21 could be regulated by the intermediate-mouth narrowing rope 28, and thereby, a burden to be imposed on the mouth-narrowing rope 26 could be significantly reduced.
  • a low-cost low-strength rope could be applied, and by causing the number of stitches skipped upon insertion of the mouth-narrowing rope 26 through the mesh of the bag body 21 to be significantly higher, the work of attaching the mouth-narrowing rope 26 to the bag body 21 and the work of mouth-narrowing the bag body 21 could be simplified.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Paleontology (AREA)
  • Ocean & Marine Engineering (AREA)
  • Revetment (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP20842971.2A 2019-07-19 2020-07-15 Corps de sac de terrassement et structure de terrassement Pending EP3951064A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019133659A JP6589081B1 (ja) 2019-07-19 2019-07-19 土木工事用袋体および土木工事用構造体
PCT/JP2020/027494 WO2021015069A1 (fr) 2019-07-19 2020-07-15 Corps de sac de terrassement et structure de terrassement

Publications (2)

Publication Number Publication Date
EP3951064A1 true EP3951064A1 (fr) 2022-02-09
EP3951064A4 EP3951064A4 (fr) 2022-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20842971.2A Pending EP3951064A4 (fr) 2019-07-19 2020-07-15 Corps de sac de terrassement et structure de terrassement

Country Status (4)

Country Link
EP (1) EP3951064A4 (fr)
JP (1) JP6589081B1 (fr)
TW (1) TWI695803B (fr)
WO (1) WO2021015069A1 (fr)

Families Citing this family (4)

* 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
CN112896785A (zh) * 2021-01-15 2021-06-04 山西江淮重工有限责任公司 快速锁紧密封包装箱
JP7062113B1 (ja) 2021-03-18 2022-05-02 前田工繊株式会社 中詰材成形用型枠装置および土木工事用袋体の位置決め方法
JP7121957B1 (ja) * 2021-05-07 2022-08-19 鹿島建設株式会社 袋体および袋体の製造方法

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
JPH1150428A (ja) * 1997-08-05 1999-02-23 Seni Doboku Kaihatsu Kk 根固工用ネット袋
JP3696389B2 (ja) * 1997-10-31 2005-09-14 キョーワ株式会社 水中構造物の洗掘防止材と洗掘防止工法
JP3730021B2 (ja) * 1998-06-17 2005-12-21 キョーワ株式会社 大型土嚢
JP4936728B2 (ja) * 2006-01-10 2012-05-23 前田工繊株式会社 土木用袋体
KR100847538B1 (ko) * 2007-05-10 2008-07-21 감보 머터리얼 핸들링 베베 인양부재를 가진 컨테이너백
JP5266266B2 (ja) * 2010-02-23 2013-08-21 前田工繊株式会社 中詰め材の投入方法
JP5576783B2 (ja) * 2010-12-22 2014-08-20 ナカダ産業株式会社 袋体の開口部の結束方法
CN203359235U (zh) * 2013-07-15 2013-12-25 浙江品诺新材料有限公司 工程塑料加工设备的物料集装袋
JP6527739B2 (ja) * 2015-04-01 2019-06-05 ナカダ産業株式会社 土木工事用袋体、土木工事用袋体の設置方法及び土木工事用袋体の外形形状の調整方法
JP6074535B1 (ja) * 2016-06-23 2017-02-01 前田工繊株式会社 水工用大型土のう
WO2018163303A1 (fr) * 2017-03-07 2018-09-13 前田工繊株式会社 Corps de sac pour travaux de génie civil

Also Published As

Publication number Publication date
EP3951064A4 (fr) 2022-06-01
TW202104031A (zh) 2021-02-01
JP2021017729A (ja) 2021-02-15
JP6589081B1 (ja) 2019-10-09
WO2021015069A1 (fr) 2021-01-28
TWI695803B (zh) 2020-06-11

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