EP3118377A1 - Bloc de mur de soutènement préfabriqué et procédé de construction d'un mur de soutènement - Google Patents

Bloc de mur de soutènement préfabriqué et procédé de construction d'un mur de soutènement Download PDF

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Publication number
EP3118377A1
EP3118377A1 EP16173973.5A EP16173973A EP3118377A1 EP 3118377 A1 EP3118377 A1 EP 3118377A1 EP 16173973 A EP16173973 A EP 16173973A EP 3118377 A1 EP3118377 A1 EP 3118377A1
Authority
EP
European Patent Office
Prior art keywords
protrusion
retaining wall
block
block unit
groove
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.)
Granted
Application number
EP16173973.5A
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German (de)
English (en)
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EP3118377B1 (fr
Inventor
Kyoung Young Choi
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.)
Eco-Top Co Ltd
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Eco-Top Co Ltd
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Filing date
Publication date
Application filed by Eco-Top Co Ltd filed Critical Eco-Top Co Ltd
Publication of EP3118377A1 publication Critical patent/EP3118377A1/fr
Application granted granted Critical
Publication of EP3118377B1 publication Critical patent/EP3118377B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • E02D29/025—Retaining or protecting walls made up of similar modular elements stacked without mortar
    • 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

Definitions

  • the present invention relates to a prefabricated retaining wall block, and more particularly, to a prefabricated retaining wall block having an improved structure to allow more strong and rapid construction of the retaining wall by assembling block units with an improved engagement manner to enhance cohesion force, and a method for constructing the retaining wall using the retaining wall block.
  • the retaining wall refers to a permanent soil retaining structures constructed in a filling region, and the retaining wall is constructed for the purpose for preventing a loss of the sediment in a filling area, a cutting area or a seawall, to prevent a collapse.
  • the retaining wall construction was constructed by placing the reinforced concrete, recently, for simplicity of construction, the retaining wall construction has been widely constructed in a road embankment part construction, a construction for ensuring stability of a inclined surface, a bridge abutment wing wall construction, and other waterway and embankment construction by a masonry construction using the block.
  • Korean Registered Patent No. 10-0752078 (registered on August 20, 2007 ) discloses a retaining wall which is coupled and fixed to fixing holes formed on both sides of the block and a fixing hole of another block using a fixing pin, the fixing pin being formed with a head portion at a top and a body portion at a bottom, and the retaining wall being constructed and coupled by fitting and coupling the body portion and the head portion of the fixing pin to the fixing hole of the block and the fixing hole of another block.
  • the masonry type block of this type is also disclosed in EP Patent No. 1648609 .
  • Korean Registered Patent No. 10- 0,505,127 discloses a reinforced soil retaining wall assembly that includes a geo-grid that is installed between the retaining wall blocks laminated by connecting a plurality of horizontal rods and vertical rods to form oval fastening holes to generate frictional force, a pulling resistance and a shear stress.
  • the above-described conventional patent has a structure that fixes the geo-grid, by placing a fixing rod around which the end portion of the geo-grid is wound on the groove formed on the upper surface of the block and by connecting other blocks thereon to fix the geo-grid, there has been a problem in which the construction period of the retaining becomes longer, and when the fixing rod is corroded, there has been a problem in which it cannot be fixed to the geo-grid in a wedge-type.
  • support rigidity of the conventional retaining wall block may be reinforced by a reinforcing core material placed vertically to pass through the block, since the adjacent blocks are not firmly united with each other, when a soil pressure is locally concentrated, there has been a problem in which the block is finally disintegrated due to a loss of the support force.
  • An aspect of the present invention is directed to provide a retaining wall block with an improved shape so that the adjacent blocks are connected in an engaging manner and cohesion of each other is enhanced to improve the problems of the above-described conventional retaining wall block.
  • Another aspect of the present invention is directed to provide a retaining wall block with improved assembling characteristics to be connected into various shapes to provide the rigidity required for the retaining wall, depending on the retaining wall construction environments.
  • Still another object of the present invention is directed to provide a retaining wall block with improved construction efficiency that can more rigidly construct the retaining wall, using the above-mentioned retaining wall block.
  • a retaining wall constructing block provided with a coupling protrusion and a coupling groove on a side surface, wherein in one side portion of a retaining wall constructing first block unit, a first protrusion and a second protrusion are formed to be inclined with respect to the front as a engaging structure, a coupling groove is formed therebetween by the first and second protrusions, the first and second protrusions of point-symmetrical shape and the coupling grooves formed therebetween are formed to be vertically engaged with the first and second protrusions and the coupling grooves of the one side portion to construct the retaining wall.
  • the shapes of the first protrusion, the inclined surface, the groove and the coupling groove of the one side portion are repeatedly formed at positions rotated at a predetermined angle
  • the inclined surface, the groove, the coupling groove and the second protrusion corresponding to the inclined surface connected to the second protrusion are formed on a rear side
  • the protrusion, the coupling groove, the first protrusion and the groove corresponding to the second protrusion may be formed at the rear side end portion of the inclined surface on the other side portion.
  • a protrusion is formed in a horizontal direction
  • a concave groove is formed on a bottom surface corresponding thereto
  • the protrusion and the concave groove of the first block units vertically adjacent to each other
  • the retaining wall reinforcing geo-grid installed between the upper and lower first block units may be fixed by engagement of the concave grooves of the bottom surface of the adjacent block units of the protrusion.
  • vertical concave grooves spaced apart from each other and a horizontal concave groove located therebetween may be formed to fix the retaining wall reinforcing wire grid.
  • the retaining wall constructing block further includes a second block unit in which the inclined surface, the groove, the first protrusion, the second protrusion formed at the end portion of the inclined surface by the same shape and arrangement as the groove, the first protrusion, the coupling groove and the second protrusion formed on one side of the first block unit, and the shape and the arrangement configuration of the formed coupling groove are further repeatedly formed at the rear, the same structure as the shape of one side is also point-symmetrically formed on the other side and can be coupled to the first block unit; and a third block unit in which the same engaging structure of both side portions as the first block unit are formed on both sides and has a reduced horizontal length, and is engaged with the first and second block units.
  • a retaining wall constructing method is constructed by assembling the other first block unit by at least one row in a manner of being inserted downward from the top so that the inclined first and second protrusions, the coupling groove and the grooves of one side portion of the first block unit are engaged with the inclined coupling groove, the first protrusion, the second protrusion and the groove of the adjacent other side portion.
  • the second block unit may be vertically disposed on at least one side of the at least one first block unit, and the engaging structures of both side portions may be constructed by being coupled to the first block unit.
  • the geo-grid is disposed between the constructed upper and lower block units to extend rearward, and the geo-grid may be installed and fixed to be engaged between the horizontal protrusion formed on the upper surface of the lower first block unit and the bottom surface of the upper first block unit.
  • the first block unit and the second block unit may be assembled in combination in a box shape.
  • a plurality of third block units may be consecutively assembled to the side portion of the first block unit so that a coupling angle between the first and second protrusions and the coupling groove are displaced at a preset angle.
  • the block units having the different heights may be assembled to be adjacent to each other to have a lateral support force so that the upper block unit and the lower block unit prevent an occurrence of horizontal slippage.
  • the first, second and third block units are formed in the engaging structure, the block units are vertically assembled and fixed to be engaged with each other, it is possible to rigidly construct the retaining wall even without a fixing means or a connecting means, and the retaining wall can be simply constructed, and there is an effect of improvement in working efficiency.
  • a reinforcing means such as a conventional geo-grid can be simply fixed by the engagement coupling between the upper and lower block units, even without an additional fixing means.
  • a first protrusion 1 and a second protrusion 2 are formed in one side portion in a direction inclined to the front surface, and a coupling groove 3 is formed between the first and second protrusions 1 and 2.
  • the shape of the coupling groove 3 is the same as the cross-sectional shape of the first protrusion 1, which allows the first protrusions of the adjacent block units to be vertically inserted and assembled.
  • the first protrusion 1 leads to an inclined surface toward the front surface 5, and a groove 6 is formed with which the second protrusion 2 of the block unit adjacent to the inclined surface 5 is engaged.
  • a corresponding engaging structure capable of being coupled with the coupling structure of the one side portion is formed on the other side portion of the first block unit 100. That is, a first protrusions 11, a second protrusion 12 and a coupling groove 13 therebetween are formed in a point symmetrical shape with the first protrusion 1, the second protrusions 2 and the coupling groove 3 described above.
  • the first protrusion 1 of the other side portion of the block unit 100' disposed adjacent in FIG. 6 is vertically fitted to the coupling groove 3 of one side portion of the first block unit 100, and meanwhile, the first protrusion 1 of one side portion of the first block unit 100 is vertically fitted to the coupling groove 13 of the other side portion of the adjacent first block unit 100' and is coupled by engagement.
  • the second protrusion 12 of the other side portion of the adjacent first block unit 100' is engaged with the groove 6 formed in the inclined surface 5 of one side portion of the first block unit 100.
  • the second protrusion 12 of the other side portion is formed at the end portion of the inclined surface 15 inclined from the front surface, and an inclined surface 17 and a groove 18 are formed at point symmetrical position in the same structure as the inclined surface 5 and the groove 6 of one side portion of the first block unit 100.
  • the inclined surface 5 of the one side portion and the inclined surface 17 of the other side portion are parallel to each other.
  • the first protrusion 1 and the second protrusion 2 are formed to be arranged at 90° in the embodiment illustrated in the drawings so that they are inclined at a predetermined angle relative to each other, and the inclined surfaces 5 and 15 are formed so as to be inclined to the front face of the block unit.
  • the inclined surface 5 having the first protrusion 1 formed on the end portion is formed parallel to the inclined surface formed with the first protrusion 17 of the other side portion 11.
  • the retaining wall can be rigidly constructed by engaging and coupling the block units, even without using another connection means as in the prior art.
  • the shapes of the first protrusion 1, the inclined surface 5, the groove 6 and the coupling groove 3 of the block unit 100 are repeatedly formed at a position rotated rearward at 90°, and an include surface 5' corresponding to the inclined surface 5, a groove 6, a coupling groove 3' and a second protrusion 2' are formed on the rear side followed by the second protrusion 2.
  • Such an arrangement shape is similarly provided on the other side portion of the opposite side, a protrusion 12' corresponding to the second protrusion, a coupling groove 13', a first protrusion 11' and a groove 18 ' are formed at the rear side end portion of the inclined surface 17, and these are connected to the second protrusions 2' by a plane.
  • protrusions 20 protruding upward are formed on both end portions in the horizontal direction, a concave groove 22 having the same depth as the protrusion 20 is formed at the bottom of a position corresponding to the protrusion, a vertical concave groove 21 is formed on the top surface at a spaced position, a horizontal concave groove 23 is formed between the end portions of the two concave grooves 21, and thus, the wire grid can be locked and reinforced between the spaced vertical concave grooves 21 and the rear part of the retaining wall constructed in the central horizontal concave groove 23.
  • the protrusions 20 of the upper surface are coupled to the concave grooves 22 as illustrated in the bottom view of FIG. 2 formed on the bottom surface of the upper adjacent block unit.
  • FIG. 4 illustrates a second block unit 200 that can be used by being coupled to the side portion or the rear surface side of the first block unit 100.
  • the second block unit 200 has a structure in which the shapes on both sides of the first block unit 100 are repeatedly formed to the rear part. That is, second block unit 200 has an engaging structure in which the structure of the same shape and arrangement as the shapes of the groove 6, the first protrusion 1, the coupling groove 3, the second protrusion 2, the inclined surface 5', the groove 6', the first protrusions 1' and the coupling groove 3' of the inclined surface 5 formed on one side of the first block unit 100, that is, on the left side are similarly and repeatedly formed on the right side of the second block unit 200 at regular intervals.
  • the second block unit 200 that is a right side, an inclined surface 205, a groove 206 formed thereon, a first protrusion 201 formed at the end portion of the inclined surface 206, a coupling groove 203 formed adjacent to the first protrusion, a second protrusion 202 and the shape and the arrangement of the inclined surface, the groove, the first protrusion, the coupling groove and the second protrusion are similarly and repeatedly formed to be spaced apart from them at a predetermined interval
  • an engaging structure is included in which the same arrangement shape as the inclined surface 15, the second protrusion 12, the coupling groove 13, the first protrusion 11, the inclined surface 17, the groove 18 and the second protrusion 12' of the left portion of the first block unit 100 is formed so as to be repeated backward at regular intervals
  • each of the groove 206, the first protrusion 206, the coupling groove 203 and the second protrusion 202 is fitted to and engaged with each of the second protrusion 12, the coupling groove 13, the first protrusion 11 and the groove 18 of the inclined surface 17 of the left side in FIG. 1 of the first block unit 100 vertically downward.
  • the right structure of another first block unit 100 is engaged and assembled.
  • At least one through-hole 35 can be formed in the first and second block units.
  • the retaining wall by coupling the second block units to the rear side of the first and second block units 100 and 200 or by coupling a retaining wall block disposed in Korean Registered Patent No. 10-1501930 (registered on March 06, 2015 ) registered by the present applicant.
  • the present invention may further include a third block unit 300 that has a relatively reduced horizontal length, while having the same engaging structure of both sides as the first block unit 100.
  • the configurations of the groove 306, the first protrusion 301, the coupling groove 303 and second protrusion 302 of the inclined surface 305 on its one side portion, i.e., on the right side in the drawings, can be vertically engaged with the first and second protrusions, the coupling groove and the groove of the left side portion of the first and second block units in the point symmetrical shape, and meanwhile, the left shape is in a shape which is capable of being engaged with the right portions of the first and second block units and can be connected to the first and the second block units.
  • first to third blocks units with the different heights, for example, when locking and connecting the block units of the same height each other, in order to prevent a situation in which the upper block unit may horizontally slip with respect to the lower block unit, as illustrated in FIG. 12 , when connecting the first block units 100 and 500 formed to have the different heights, it is possible to prevent a horizontal slippage by the adjacent block unit.
  • the other first block unit 100' is assembled in one or more lines in a manner of being fitted downward from the top such that the first and second protrusions 1 and 2, the coupling groove 3 and the groove 6 on one side of the first block unit 100 are engaged with the coupling groove 13, the first protrusions 11, the second protrusion 12 and the groove 18 on the other side portion of another adjacent first block unit 100'.
  • another first block unit, a second block unit or a third block unit may be assembled behind the first block units 100 and 100' in the above-described engaging manner.
  • FIG. 7 is another embodiment, the second block unit 200 can be vertically placed on either side of the first block unit 100, and the engaging structures of its both side portions are coupled to further rigidly construct the retaining wall.
  • the geo-grid 400 when installing the geo-grid 400 to pass through the horizontal protrusion 20 formed on the upper surface of the lower first block unit 100, and when assembling another first block unit 100 thereon a concave groove of the bottom surface 22, while the protrusion 20 is fitted to the concave groove 22 of the bottom surface, the geo-grid 400 is engaged between the protrusion 20 and the concave groove 22, the geo-grid can be stably fixed by weight of the first block continuously connected upward, even without a separate fixing means, and the retaining wall may support the soil pressure by the friction between the geo-grid and the soil to enhance the soil pressure support force of the retaining wall.
  • the wire grid 410 may be locked through the vertical concave grooves 21 and the central concave grooves 23 formed on the upper surface of the first block unit 100 to be spaced apart from each other and may be fixed to the retaining wall rear side to reinforce the retaining wall. At this time, the upper surfaces of the concave grooves 21 and 23 are closed by the flat bottom surface portion of another first block unit connected on the upper surface to prevent the wire grid 410 from being disengaged.
  • FIG. 9 illustrates a construction example with increased soil pressure support force of the retaining wall only by the first block unit 100, or by assembling the first block unit and the second the block units 200 into a box shape in combination, at the time of installation of a retaining wall of a long section or when it is not possible to install the geo-grid or the wire grid.
  • the curved portion of the retaining wall can be simply constructed by sequentially assembling the plurality of third block units 300 at the side portion of the first block unit 100, and in the illustrated embodiment, it is possible to construct a retaining wall that is bent at 90° using the nine third block units 300.
  • the number of the third block units 300 can be changed depending on the inclination angle of the first protrusion and the coupling groove formed adjacent thereto.
  • a finishing block and a corner finishing block disclosed in Korean Registered Patent No. 10-1501930 registered by the applicant can also be used in combination for the first and the second block units 100 and 200.
  • FIG. 11 illustrates an example of constructing the retaining wall in an S-shaped curved surface by varying a coupling angle between the protrusions and the coupling grooves of the third block units 300.
  • the block unit of the present invention can freely construct the curved construction of the retaining wall, it is possible to efficiently perform the construction work.
  • the block units according to the present invention are connected to one another by making the heights different, for example, by mixing the first block unit 100 and a block unit 500 having a twice height thereof, the block units can be supported each other in the horizontal direction.
  • the third block unit 300 can be finished in the retaining wall side end portion.
  • the block unit according to the present invention has a greater support force to the soil pressure in the front and back direction when the retaining wall is construction.
  • the vertical displacement due to local subsidence of the ground although a vertical crack occurs in the conventional retaining wall block at the time of ground subsidence to cause a collapse of the retaining wall, in the coupling of the units of the present invention, since upper and lower floating is allowable to some extent by the vertical engagement structure without damage to the block unit, it is possible to accommodate the vertical displacement due to slight ground subsidence usually generated after construction, and it is possible to prevent the damage to the blocks and the collapse of the retaining wall.
  • the block units of the present invention can be used to rigidly and quickly construct a retaining wall which prevents loss of sediment in an embankment, cutting area or a seawall.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Retaining Walls (AREA)
  • Revetment (AREA)
EP16173973.5A 2015-07-17 2016-06-10 Bloc de mur de soutènement préfabriqué et procédé de construction d'un mur de soutènement Not-in-force EP3118377B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150101830A KR20170009571A (ko) 2015-07-17 2015-07-17 조립식 옹벽블럭 및 옹벽시공방법

Publications (2)

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EP3118377A1 true EP3118377A1 (fr) 2017-01-18
EP3118377B1 EP3118377B1 (fr) 2018-03-28

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EP16173973.5A Not-in-force EP3118377B1 (fr) 2015-07-17 2016-06-10 Bloc de mur de soutènement préfabriqué et procédé de construction d'un mur de soutènement

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EP (1) EP3118377B1 (fr)
KR (1) KR20170009571A (fr)
CN (1) CN106351249A (fr)
TR (2) TR201604642A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019118492A1 (fr) 2017-12-11 2019-06-20 Tensar International Corporation Blocs pour murs segmentaires minces stabilisés, système de renforcement de sol, et procédés
CN110130305A (zh) * 2019-04-12 2019-08-16 交通运输部天津水运工程科学研究所 一种网格式软土地基处理方法及地基结构
JP2022553071A (ja) * 2019-10-23 2022-12-21 ソク チェ、ヒョン レゴ（登録商標）型建築ブロック、レゴ型建築ブロックモジュール、レゴ型建築ブロックシステム及び築造方法、並びにそれのためのシミュレーションシステム

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108755748A (zh) * 2018-06-27 2018-11-06 广西华蓝岩土工程有限公司 一种干砌加筋挡墙砌块
KR102242426B1 (ko) * 2019-02-28 2021-04-20 최현석 배수능력을 향상시킨 옹벽 블록 시스템
KR102363548B1 (ko) * 2019-10-23 2022-02-16 최현석 레고형 건축 블록, 레고형 건축 블록 모듈, 레고형 건축 블록 시스템 및 축조 방법, 그리고 이를 위한 시뮬레이션 시스템

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100505127B1 (ko) 2003-09-16 2005-07-29 김진웅 보강토 옹벽용 조립체
EP1648609A2 (fr) 2003-07-18 2006-04-26 Dade Behring Inc. Sonde d'echantillonnage de liquides et systeme fluidique de nettoyage
KR100752078B1 (ko) 2006-10-18 2007-08-27 (주)금오물산 옹벽블럭
US20110192097A1 (en) * 2010-02-10 2011-08-11 Kelley Michael L Jr Block combinable with other similar blocks to form a wall, and related systems and methods
KR101501930B1 (ko) 2014-07-08 2015-03-13 주식회사 에코탑 옹벽블록 및 그 시공방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1648609A2 (fr) 2003-07-18 2006-04-26 Dade Behring Inc. Sonde d'echantillonnage de liquides et systeme fluidique de nettoyage
KR100505127B1 (ko) 2003-09-16 2005-07-29 김진웅 보강토 옹벽용 조립체
KR100752078B1 (ko) 2006-10-18 2007-08-27 (주)금오물산 옹벽블럭
US20110192097A1 (en) * 2010-02-10 2011-08-11 Kelley Michael L Jr Block combinable with other similar blocks to form a wall, and related systems and methods
KR101501930B1 (ko) 2014-07-08 2015-03-13 주식회사 에코탑 옹벽블록 및 그 시공방법

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019118492A1 (fr) 2017-12-11 2019-06-20 Tensar International Corporation Blocs pour murs segmentaires minces stabilisés, système de renforcement de sol, et procédés
EP3724408A4 (fr) * 2017-12-11 2021-02-10 Tensar International Corporation Blocs pour murs segmentaires minces stabilisés, système de renforcement de sol, et procédés
CN110130305A (zh) * 2019-04-12 2019-08-16 交通运输部天津水运工程科学研究所 一种网格式软土地基处理方法及地基结构
JP2022553071A (ja) * 2019-10-23 2022-12-21 ソク チェ、ヒョン レゴ（登録商標）型建築ブロック、レゴ型建築ブロックモジュール、レゴ型建築ブロックシステム及び築造方法、並びにそれのためのシミュレーションシステム

Also Published As

Publication number Publication date
TR201808867T4 (en) 2018-08-27
EP3118377B1 (fr) 2018-03-28
CN106351249A (zh) 2017-01-25
TR201604642A2 (tr) 2017-01-23
KR20170009571A (ko) 2017-01-25

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