EP2278076A1 - Ferrure multi-usage d ancrage au sol - Google Patents

Ferrure multi-usage d ancrage au sol Download PDF

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Publication number
EP2278076A1
EP2278076A1 EP09729651A EP09729651A EP2278076A1 EP 2278076 A1 EP2278076 A1 EP 2278076A1 EP 09729651 A EP09729651 A EP 09729651A EP 09729651 A EP09729651 A EP 09729651A EP 2278076 A1 EP2278076 A1 EP 2278076A1
Authority
EP
European Patent Office
Prior art keywords
side plates
bracket
anchor
earth anchor
earth
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.)
Withdrawn
Application number
EP09729651A
Other languages
German (de)
English (en)
Inventor
Il-Jun Sohn
Man-Ki Lee
Seok-Woo Nam
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.)
New Technical Industry Co Ltd
Original Assignee
New Technical Industry 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 New Technical Industry Co Ltd filed Critical New Technical Industry Co Ltd
Publication of EP2278076A1 publication Critical patent/EP2278076A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/808—Ground anchors anchored by using exclusively a bonding material

Definitions

  • the present invention relates to an earth anchor bracket for securing an anchor body which is inserted and fixed into the ground to prevent collapse of soft ground in an earth anchor method. More particularly, the present invention relates to an earth anchor bracket, which allows automatic adjustment in the position of a pressure support means depending on tensile direction of the anchor body, and multipurpose utilization in various forms of earth retaining working.
  • an earth anchor method is widely used to prevent collapse of an earth retaining wall when a steep excavation hole is formed in a digging or foundation work at a civil engineering/construction field.
  • the earth anchor method is performed as follows.
  • soldier piles(H-beams) are driven into a ground and a designated ground is excavated, and then laggings are inserted between the soldier piles, thereby forming an earth retaining wall 1.
  • the anchor body 3 is divided into a anchor free length La and the fixed anchor length Lb with respect to a portion where a virtual collapse line (a dashed line in FIG. 1 ), which is set between an edge of a bottom surface 6 of the excavation hole and the ground by a design standard according to a soil, meets the boring portion 2, and the first grouting is generally performed for the fixed anchor length Lb.
  • a virtual collapse line (a dashed line in FIG. 1 )
  • a tensile force is applied to the anchor free length La of the anchor body 3 to fix the anchor body 3 to an earth anchor bracket 10 which is installed on a girder 4 of the earth retaining wall 1.
  • the anchor free length La of the anchor body 3 is passed through a through portion formed at the earth anchor bracket 10 and is then fixed using a cone 5 having a diameter greater than that of the through portion.
  • FIG. 2 is a perspective view illustrating an example of the earth anchor bracket 10 which has been most used in the civil engineering/construction field, and it includes two generally triangular shaped side plates 11 installed parallel to each other, and a pressure support plate 12 installed on the same inclined sides of the two side plates 11 and provided with a through portion 12a through which the anchor body 3 is withdrawn.
  • Korean Patent No. 760213 suggests, to solve the aforementioned problem, an earth anchor bracket having curved portions with saw-teeth formed at inclined sides of two side plates and protrusions formed at a cylinder for engagement with the saw-teeth and supported by the two side plates in order to correspond to various tensile angles.
  • the earth anchor bracket is used with being fixed to or held by two girders spaced apart from each other, there is a problem that it cannot be used for a concrete wall which employs a continuous pile wall or underground continuous wall.
  • Embodiments of the present invention are directed to an earth anchor bracket in which a position of a pressure support means can be adjusted automatically depending on tensile direction of an anchor body without manual adjustment of a worker.
  • embodiments of the present invention are directed to an earth anchor bracket which can be used for anchor body fixation in various fields where different earth retaining methods are employed.
  • an earth anchor bracket for fixing an anchor body inserted and fixed into the ground in an earth anchor method includes: two side plates parallel to each other and having a shaft hole, respectively; a connection member installed between the both side plates to connect the both side plates; and a pressure support means placed between the both side plates, and having rotation shafts each inserted into the shaft holes and a through portion through which a anchor free length is withdrawn.
  • the pressure support means is a cylinder member having the rotation shafts each projected from the opposite outer surfaces and the through portion which passes through both ends thereof.
  • the both side plates are provided with a curved portion on an upper end thereof, respectively, and the outside of the cylinder member is provided with projections having a curved surface which is held on the curved portion of the both side plates, respectively.
  • the both side plates includes a first side plate provided with the shaft hole; and a second side plate coupled to the first side plate by a coupling means, respectively, and the first side plate and the second side plate are engaged with each other in a zigzagged form.
  • a circular reinforcing member for surrounding the periphery of the shaft hole is formed on each of the both side plates.
  • a first base plate and a second base plate spaced apart from each other are coupled to lower ends of the both side plates, and a reinforcing member is installed between the both side plates and the first base plate or the second base plate.
  • a base plate provided with an anchor fastening hole for coupling a fixation anchor to an earth retaining wall is coupled to lower ends of the both side plates.
  • an earth anchor bracket for fixing an anchor body inserted and fixed into the ground in an earth anchor method, includes: a first bracket unit having two first side plates parallel to each other and having a shaft hole, respectively, a first connection member installed between the both first side plates to connect the both first side plates, and a pressure support means placed between the both first side plates and having rotation shafts each inserted into the shaft holes and a through portion through which a anchor free length is withdrawn; a second bracket unit having two second side plates parallel to each other and a second connection member installed between the both second side plates to connect the both second side plates; and a coupling means for connecting the first bracket unit and the second bracket unit.
  • an earth anchor bracket for fixing an anchor body inserted and fixed into the ground in an earth anchor method includes: two side plates parallel to each other and having a rotation shaft on an inner surface thereof, respectively; a connection member installed between the both side plates to connect the both side plates; and a pressure support means placed between the both side plates, and having shaft holes each coupled with the rotation shafts of the both side plates and a through portion through which a anchor free length is withdrawn.
  • a position of the cylinder member is determined automatically depending on tensile angle of the anchor body since the cylinder member in which the anchor body is inserted can rotates about the rotation shaft. Therefore, it is possible to solve the inconvenience that a worker adjusts the position of the pressure support means manually as is conventionally performed.
  • the earth anchor bracket of the present invention can be used for multipurpose uses in various earth retaining methods since the first bracket unit and the second bracket unit can be connected to be used as a single earth anchor bracket or the first bracket unit can be used separately. Therefore, it is possible to considerably save a construction cost since it is not necessary to employ earth anchor brackets of different forms corresponding to each earth retaining method by using the earth anchor bracket of the present invention.
  • earth anchor bracket 110 side plate 111: first side plate 112: second side plate 114: shaft hole 120: connection member 130a, 130b: first and second base plates 140: cylinder member 150: rotation shaft 160: first reinforcing member 170: second reinforcing 180: coupling plate 200: tensioner
  • FIGs. 3 and 4 are a perspective view and an exploded perspective view illustrating an earth anchor bracket in accordance with an embodiment of the present invention, respectively.
  • the earth anchor bracket 100 in accordance with an embodiment of the present invention includes two side plates 110, a connection member 120 interposed between the two side plates 110 to connect the two side plates 110, first and second base plates 130a, 130b spaced apart from each other and each coupled with lower ends of the two side plates 110, and a cylinder member 140 placed between the two side plates 110 to withdraw a anchor free length of a anchor body.
  • the cylinder member 140 is provided with a through portion 141 that passes through both ends thereof. And two rotation shafts 150 are projected outwardly from two opposite outer surfaces of the cylinder member 140. Each rotation shaft 150 is inserted in a shaft hole 114 formed at the both side plates 110, and the cylinder member 140 is thereby coupled rotatably with the two side plates 110.
  • the rotation shaft 150 and the cylinder member 140 are formed integrally, but it is not particularly limited thereto.
  • the rotation shaft 150 may have a cylindrical shape, or may be manufactured in a form of a hollow cylinder so as to reduce a weight.
  • the cylinder member 140 has a rectangular section in figures, the cylinder member may have a circular section.
  • a pressure support means in another form may be used, provided that it has the through portion 141 for withdrawing the anchor body therethrough and the rotation shaft 150 to be coupled with the shaft hole 114 of the side plate 110.
  • projections 142 which are held on an upper end of the side plates 110, respectively, may be projected from the upper outer ends of the cylinder member 140.
  • each side plate 110 where the projection 142 is in contact into a curved portion 113, and form a bottom surface of each projection 142 into a curved surface that corresponds to the curved portion 113.
  • first reinforcing members 160 that surround an outer circumference of the shaft hole 114 may be installed at inner or outer surfaces of the both side plates 110.
  • second reinforcing members 170 are installed between the side plates 110 and the first and second base plates 130a, 130b at an outer or inner side of the both side plates 110. While the second reinforcing members 170 are installed between the first base plate 130a and the both side plates 110 in the figures, the second reinforcing members 170 having the same shape can be installed between the second base plate 130b and the both side plates 110.
  • the second reinforcing member 170 is coupled vertically with the side plate 170, and is, but not particularly limited to, preferably a plate having wider width as goes to a lower end.
  • the first and second base plate 130a, 130b function to distribute the pressure applied to the both side plates 110 to a girder or bottom surface, and are provided with an anchor fastening hole 134 for fastening of the anchor.
  • the anchor fastening hole 134 is for insertion of a fixation anchor, which fixes the first base plate 130a to a retaining wall, when the earth anchor bracket 100 of the present invention is separated and the first bracket unit 100a alone is separately used as will be described later.
  • a cut portion 131 for withdrawing the anchor body may be formed in a middle portion of the first base plate 130a if a length of the first base plate 130a is too long.
  • the second base plate 130b is a portion supported by a girder placed therebelow when it is installed, and is provided with a holding end 132 formed by bending an upper end thereof so that is can be conveniently held on the girder therebelow.
  • a reinforcing portion 119 which surrounds and supports the outer circumference of the holding end 132, is formed at the lower ends of the both side plates 110.
  • each side plate 110 can be manufactured integrally, in an embodiment of the present invention, a first side plate unit 111 and a second side plate unit 112 are separately manufactured and then coupled with each other to complete the side plate 110 as shown in the figures. This is for applying the earth anchor bracket 100 of the present invention to various forms of earth retaining working, and specific usage will be described later.
  • the first side plate unit 111 and the second side plate unit 112 are coupled, using bolts 186 and nuts 185, with coupling plates 180 being attached to the outer (or inner) surface of the first side plate unit 111 and the second side plate unit 112.
  • a projection portion 116 is formed at the side of the first side plate unit 111 which is coupled with the side of the second side plate unit 112, and a coupling groove 117 which is fitted with the projection portion 116 is formed at the side of the second side plate unit 112 which is coupled with the side of the first side plate unit 111.
  • the first side plate unit 111 and the second side plate unit 112 are coupled using the coupling plate 180 with the projection portion 116 and the coupling groove 117 being fitted with each other.
  • the projection portion 116 and the coupling groove 117 may be formed reversely, and a larger number of the projection portion 116 and the coupling groove 117 may be formed.
  • the coupling plate 180 may be fastened to the first side plate unit 111 and the second side plate unit 112 with bolts, or some portion of the coupling plate 180 may be previously welded to the second side plate unit 112 and the other portion is then fastened to the first side plate unit 111 with bolts.
  • the coupling plate 180 and the first side plate unit 111 are provided with bolt holes 183, 118 for bolt fastening, respectively.
  • welding holes 184 may be formed in the coupling plate 180 for the convenience of welding.
  • the coupling plate 180 While it is possible to couple the coupling plate 180 only to the first side plate unit 111 and the second side plate unit 112, in order to increase pressure resistance, it may be possible for the coupling plate 180 to be coupled further to the first base plate 130a coupled with lower ends of the first side plate units 111.
  • the coupling plate 180 includes a vertical plate 181 coupled to the first side plate unit 111 and the second plate unit 112 and a horizontal plate 182 bent from the lower end of the vertical plate 181, and the horizontal plate 182 is coupled to the first base plate 130a.
  • the first base plate 130a is provided with bolt fastening hole 136 for coupling the first base plate 130a with the horizontal plate 182 therethrough.
  • the shaft hole 114 in which the rotation shaft 150 of the cylinder member 140 is inserted, is formed in the first side plate unit 111. Therefore, two first side plate units 111 are coupled using the connection member 120 with the cylinder member being interposed therebetween and lower ends of the first side plate units 111 are then coupled to the first base plate 130a, thereby constructing the first bracket unit 100a which can be used independently, as shown in FIG. 5 .
  • two second side plate units 112 are coupled with the connection member 120 interposed therebetween and lower ends of the two second side plate units 112 are then coupled to the second base plate 130b, thereby constructing the second bracket unit 100b as shown in FIG. 6 .
  • the coupling plate 180 may be previously coupled to the second side plate units 112, for example, by welding.
  • FIG. 7 is a view illustrating a usage of the earth anchor bracket 100 in which the first bracket unit 100a and the second bracket unit 100b are connected with the coupling plate 180.
  • the holding end 132 of the second base plate 130b is held on the lower girder 4, and an end of the anchor free length of the anchor body 3 is withdrawn through the cylinder member 130 and then tensioned using a tensioner 200.
  • a tensile force is transferred to the both side plates 110 through the rotation shaft 150 of the cylinder member 140, and then distributed to the upper and lower girders 4 through the first and second base plates 130a, 130b.
  • FIGs. 8a and 8b are views illustrating that the cylinder member 140 is arranged with various angles.
  • FIG. 9 is a view illustrating that an anchor body is fixed to the first bracket unit 100a alone. This may be applied to an earth retaining method, which does not employs a girder, for example, a continuous pile wall or underground continuous wall method.
  • the earth retaining wall W formed by the aforementioned method is bored to insert the anchor body 3 therein, and grouting is performed for the fixed anchor length, and then a anchor free length of the anchor body 3 is withdrawn and fixed through the cylinder member 140 of the first bracket unit 100a.
  • a fixation anchor 300 is inserted in the anchor fastening hole 134 formed in the first base plate 130a of the first bracket unit 100a to fix the first bracket unit 100 to the earth retaining wall W.
  • the fixation anchor 300 may be previously installed during construction of the earth retaining wall W.
  • the first bracket unit 100a with the same structure can be used even when the tensile direction of the anchor body 3 varies as shown in Fig. 9 .
  • the first bracket unit 100a of the present invention allows the anchor body to be directly inserted into the ground from the upper side of the earth retaining wall W as shown in FIG. 10 .
  • the shaft holes are formed at both sides of the cylinder member 150 and the rotation shafts which are coupled with the shaft holes are formed on inner surfaces of the both side plates 110.
  • the earth anchor bracket 100 is characterized in that the pressure support means (or the cylinder member) is coupled rotatably with the both side plates 110 by the rotation shaft.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)
EP09729651A 2008-04-08 2009-03-30 Ferrure multi-usage d ancrage au sol Withdrawn EP2278076A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080032825A KR100992942B1 (ko) 2008-04-08 2008-04-08 다목적 어스 앵커 브라켓
PCT/KR2009/001605 WO2009125935A1 (fr) 2008-04-08 2009-03-30 Ferrure multi-usage d’ancrage au sol

Publications (1)

Publication Number Publication Date
EP2278076A1 true EP2278076A1 (fr) 2011-01-26

Family

ID=41162045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09729651A Withdrawn EP2278076A1 (fr) 2008-04-08 2009-03-30 Ferrure multi-usage d ancrage au sol

Country Status (6)

Country Link
EP (1) EP2278076A1 (fr)
KR (1) KR100992942B1 (fr)
CN (1) CN102046886A (fr)
AU (1) AU2009234636A1 (fr)
MY (1) MY159716A (fr)
WO (1) WO2009125935A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
NL2022393B1 (nl) * 2019-01-14 2020-08-14 Key Staal B V Samenstel van een keerwand, tenminste twee langwerpige verankeringselementen en een gordingbalk

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100964258B1 (ko) * 2010-01-27 2010-06-16 (주)서림건설 어스앵커용 오토앵글브라켓
KR101004639B1 (ko) * 2010-02-08 2011-01-04 이윤정 앵커 브라켓
KR101260966B1 (ko) * 2011-04-13 2013-05-06 김용만 각도조절용 앵커브라켓을 구비한 강연선 인장장치
KR101314275B1 (ko) 2012-08-09 2013-10-02 대우조선해양 주식회사 선박의 앵커 포켓 구조물 및 그 조립 방법
CN105083743A (zh) * 2015-07-16 2015-11-25 上海外高桥造船有限公司 桩腿固定装置
CN107697231B (zh) * 2017-11-03 2023-12-22 中船黄埔文冲船舶有限公司 适用于无杆锚的万能锚架
CN108331014A (zh) * 2018-04-24 2018-07-27 吉林建筑大学 一种预留加固孔槽的桥区装配式挡墙
KR101965406B1 (ko) * 2018-08-03 2019-04-03 정순국 네일 인발각도 조절이 용이한 네일 구조체 및 그를 이용한 네일 시공공법

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JPS534326B2 (fr) * 1975-01-09 1978-02-16
JP2003105760A (ja) * 2001-09-27 2003-04-09 Kozo Koji Kk 組立式自在アンカー台座
KR100652530B1 (ko) * 2006-03-31 2006-12-04 손일준 어스 앵커 브라켓
KR100760213B1 (ko) * 2006-12-28 2007-09-20 (주) 신기술산업 톱니가 형성된 곡선부를 가지는 어스 앵커 브라켓

Non-Patent Citations (1)

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Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2022393B1 (nl) * 2019-01-14 2020-08-14 Key Staal B V Samenstel van een keerwand, tenminste twee langwerpige verankeringselementen en een gordingbalk

Also Published As

Publication number Publication date
KR20090107354A (ko) 2009-10-13
AU2009234636A1 (en) 2009-10-15
KR100992942B1 (ko) 2010-11-08
MY159716A (en) 2017-01-31
CN102046886A (zh) 2011-05-04
WO2009125935A1 (fr) 2009-10-15

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