EP2171160A1 - Reinforced stabilisation strip to be used in reinforced ground works - Google Patents
Reinforced stabilisation strip to be used in reinforced ground worksInfo
- Publication number
- EP2171160A1 EP2171160A1 EP08827937A EP08827937A EP2171160A1 EP 2171160 A1 EP2171160 A1 EP 2171160A1 EP 08827937 A EP08827937 A EP 08827937A EP 08827937 A EP08827937 A EP 08827937A EP 2171160 A1 EP2171160 A1 EP 2171160A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibers
- rope
- reinforced
- stabilizing strip
- strip
- 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
Links
- 230000006641 stabilisation Effects 0.000 title description 8
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 33
- 239000000835 fiber Substances 0.000 claims description 35
- 239000002689 soil Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 3
- 238000009954 braiding Methods 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- 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
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
-
- 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
- E02D17/202—Securing of slopes or inclines with flexible securing means
Definitions
- the present invention relates to a reinforced stabilization strip for use in reinforced soil or reinforced earth, and the use of such a strip for the construction of structures reinforced soil or ground.
- a reinforced soil structure combines a compacted embankment, a siding and reinforcements connected or not to the facing.
- reinforcements may be used: metal, for example galvanized steel, stabilizing strips for example based on polyester fibers. They are set up in the soil with a density depending on the constraints that can be exerted on the structure, the thrust forces of the ground being taken up by the friction soil-reinforcements.
- the cladding is most often made from prefabricated concrete elements in the form of slabs or blocks, juxtaposed to cover the front face of the work.
- the reinforcements are provided in the form of strips having a length of about 3 to 10 meters, although shorter or longer strips may be used.
- the width of the strips is generally between 4 and 6 centimeters although it is possible to use strips of width up to 10 or 25 centimeters, see more.
- Their thickness varies, for example, from about 1 millimeter to a few centimeters and is generally between 1 to
- the purpose of the stabilization strips is to transmit the forces into the ground or earth and thus distribute the forces.
- the band is capable of transmitting the forces over its entire length so it has a high tensile strength.
- a solution known to those skilled in the art consists in using strips having a longitudinal portion in the form of a central portion to withstand a tensile force, the central portion having two lateral parts which protrude laterally from each other. another of the central portion to rub against the earth, the central portion having a set of fibers arranged parallel to each other so as to enhance the tensile strength.
- Another solution is to use parallelepiped strips of polyethylene reinforced with polyester fibers arranged parallel to each other in the volume of said strip.
- the internal reinforcements of the strips consist of substantially parallel bundles of substantially parallel wires.
- Such an arrangement of the fibers presents risks of sliding between fibers, between fiber group and strip, and thus a degradation of the transmission of the force between the ground and the part of the tensile band.
- An object of the present invention is to provide an alternative solution that transmits forces between a strip and the embankment in which it is placed, which has a high tensile strength and which limits the risk of sliding between fibers and between groups of fibers and tape.
- the invention thus proposes a reinforced stabilization strip intended to be used in structures in reinforced soil, comprising a longitudinal part, said longitudinal part comprising on at least a part of its length at least one cord arranged substantially longitudinally and wrapped in the volume of said longitudinal portion, for example in the volume of the longitudinal portion.
- the rope has a high tensile strength and increases the internal cohesion between the fibers.
- the arrangement of fibers or son in the form of rope or rope allows better anchoring of the fibers or son within the longitudinal portion.
- a stabilizing strip according to the invention may further comprise one or more of the optional features below, considered individually or according to all the possible combinations:
- the material constituting said longitudinal portion is based on polymers, for example based on polyethylene;
- the material constituting the fibers or threads of the rope is based on a polymer, for example based on polyester;
- Said longitudinal portion is in the form of at least one central portion, said central portion having at least one lateral portion that protrudes laterally on the longitudinal portion to rub against the ground;
- the longitudinal part comprises several central parts connected to each other by a lateral part;
- the rope is a braided rope made from at least three fibers, in particular from at least six fibers;
- the rope is a twisted rope from at least three fibers, in particular from at least six fibers;
- the invention also relates to the use of a stabilizing strip according to the invention for the construction of a structure in reinforced soil.
- the invention also relates to a reinforced soil structure comprising at least one stabilizing strip according to the invention.
- the subject of the invention is also a method for constructing a structure in reinforced soil, in which a facing is placed along a front face of the structure delimiting a volume to be filled, reinforcements are provided in an area of said volume, provides fill material in said volume and compacts the backfill material, wherein said reinforcements comprise at least one stabilizing strip according to the invention.
- Figure 1 is a perspective view of a first embodiment with a twisted rope
- Figure 2 is a perspective view of a second embodiment with a braided rope
- Figure 3 is a perspective view of a third embodiment with two different ropes
- Figure 4 is a schematic side sectional view of a reinforced soil structure according to the invention in progress.
- the term "rope” means an assembly, for example obtained by twisting or braiding, of at least three fibers composed of a plurality of threads or directly of at least three threads, of textile materials, synthetic, plastic, metallic or a combination of these different fibers or son. It is known to those skilled in the art that the at least three fibers composing a rope are assembled to form a stable construction.
- the yarns within the meaning of the invention are composed of a set of monofilaments and / or staple fibers and / or fibril threads assembled and twisted.
- a rope according to the invention may comprise at least 3 strands, each strand being composed of a plurality of fibers assembled to form a stable construction.
- a rope according to the invention may be a braided rope according to the NF EN ISO 1968 standard, namely obtained by braiding together strands to form a stable construction that does not bend.
- a rope according to the invention may be a twisted cord according to the NF EN ISO 1968 standard, namely obtained by twisting strands to form a stable construction which does not bend.
- a rope according to the invention may comprise several sets of fibers combining sets of parallel fibers assembled to form a stable construction, for example surrounded by woven or twisted fibers.
- the chosen cords may for example be thin, with a diameter of the order of one millimeter or more thick with a diameter of about one centimeter.
- FIG. 1 shows a perspective view of a first embodiment of a stabilizing strip according to the invention.
- the reinforced stabilization strip 10 comprising a longitudinal portion 12 comprising along its length a rope 14, said rope 14 is wrapped in the volume of said longitudinal portion 12.
- the longitudinal portion may be made of a plastic material such as polyethylene, polypropylene, PVC,
- the rope is an assembly of three twisted fibers 16.
- the fibers 16 constituting the rope 14 may be metallic, synthetic, polymeric for example consist of polyester, polyamide or polyolefin, or natural for example based on hemp or a combination of these different fibers.
- said longitudinal portion 12 of the stabilizing strip 10 according to the invention is in the form of a central portion 17, said central portion 17 having two lateral portions 18 , in the form of fins, which protrude laterally to rub against the ground.
- the longitudinal portion 12 extends laterally on both sides, but could as well extend only one side.
- the rope 14 is braided from six fibers 16.
- the fins 18 may be provided with ribs and / or corrugation and / or perforation or any other means known to those skilled in the art to improve frictional interaction with the earth.
- the band according to the invention may comprise several strings of the same nature or of different natures, the strings being wrapped in the volume of the longitudinal portion 12 of said band. Each cord 14 may extend over only a portion of the length of the stabilizing strip 10.
- the ropes 14 may contain a central core in order to increase their diameters and thus the contact surface between the outer fibers and the material forming the longitudinal portion of the stabilizing strip 10.
- the strip according to the invention may also comprise a reinforced longitudinal part with a multitude of strings, for example, thin strings distributed throughout the volume substantially homogeneously.
- a strip according to the invention can be produced, for example, by extrusion, coextrusion, rolling or any other technique known to those skilled in the art to produce metal or polymer strips.
- the invention also relates to a method of constructing a structure in reinforced soil.
- Figure 4 illustrates such a method.
- a compacted embankment 20, in which stabilizing strips 10 according to the invention are distributed, is delimited on the front side of the structure by a facing 23 constituted by juxtaposing prefabricated elements 24, and on the rear side by the ground 25. against which is erected the retaining wall.
- the stabilizing strips 10 can be connected to the facing elements 24, and extend for a distance within the embankment 21. These stabilizing strips 10 contribute to reinforce the soil located in a reinforced zone Z on the back of the siding 23.
- the material of the embankment 21 has a high resistance because it is reinforced by the stabilizing strips 10. It is thus able to withstand the shear stresses that are exerted due to tensile forces
- the reinforced zone Z must naturally have a thickness sufficient to hold the facing 23.
- the simple connection of stabilizing strips to the back of the facing elements 24 thus makes it possible to maintain the facing applied against embankments which can to be of great volume.
- the stabilizing strips 10 are integrated during the manufacture of the facing elements 24. In the frequent case where the elements 24 are prefabricated with concrete, a portion of the stabilizing strips 10 may be embedded in the molded concrete of FIG. 24. In the exemplary work configuration illustrated in FIG.
- the stabilizing strips 10 are arranged in horizontal planes superposed alternately on the height of the structure.
- the mounting and positioning of the facing elements can be facilitated by connecting members placed between them; b) install the stabilizing strips 10 on the embankment already present by exerting a slight pull on them; c) providing backfill material over the newly installed stabilizing strip layer 10 to the next level of stabilizing strips 10 on the back side of the facing elements 24. This backfill material is compacted as and when his contribution; d) Repeat steps a) to c) until the top level of the embankment is reached.
- the strips may also make it possible to secure the cladding 24 to the wall 26 of the ground by attachment to said wall, for example by means of hooks, loops connected by nailing to the wall 26 or by any other means known to those skilled in the art.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Packages (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Wrappers (AREA)
- Ropes Or Cables (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0705580A FR2919631B1 (en) | 2007-07-31 | 2007-07-31 | REINFORCED STABILIZING STRIP INTENDED FOR USE IN REINFORCED STRUCTURED WORKS |
PCT/FR2008/051397 WO2009024700A1 (en) | 2007-07-31 | 2008-07-24 | Reinforced stabilisation strip to be used in reinforced ground works |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2171160A1 true EP2171160A1 (en) | 2010-04-07 |
EP2171160B1 EP2171160B1 (en) | 2011-04-20 |
Family
ID=39226590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08827937A Active EP2171160B1 (en) | 2007-07-31 | 2008-07-24 | Reinforced stabilisation strip to be used in reinforced ground works |
Country Status (10)
Country | Link |
---|---|
US (1) | US8182177B2 (en) |
EP (1) | EP2171160B1 (en) |
JP (1) | JP5073823B2 (en) |
KR (1) | KR20100071967A (en) |
AT (1) | ATE506490T1 (en) |
BR (1) | BRPI0814454B1 (en) |
DE (1) | DE602008006407D1 (en) |
FR (1) | FR2919631B1 (en) |
MX (1) | MX2010001286A (en) |
WO (1) | WO2009024700A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015110725A1 (en) * | 2014-01-27 | 2015-07-30 | Terre Armee Internationale | Reinforced stabilisation strip for reinforced embankment structures, with a functionalised casing |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8632278B2 (en) * | 2010-06-17 | 2014-01-21 | T & B Structural Systems Llc | Mechanically stabilized earth welded wire facing connection system and method |
US8632282B2 (en) * | 2010-06-17 | 2014-01-21 | T & B Structural Systems Llc | Mechanically stabilized earth system and method |
US8632280B2 (en) * | 2010-06-17 | 2014-01-21 | T & B Structural Systems Llc | Mechanically stabilized earth welded wire facing connection system and method |
US8734059B2 (en) * | 2010-06-17 | 2014-05-27 | T&B Structural Systems Llc | Soil reinforcing element for a mechanically stabilized earth structure |
RU2474637C2 (en) * | 2011-02-28 | 2013-02-10 | Закрытое акционерное общество "ПРЕСТО-РУСЬ" | Innovation polymer tape (versions) and tape made of it |
RU2459040C9 (en) * | 2011-02-28 | 2013-07-20 | Закрытое акционерное общество "ПРЕСТО-РУСЬ" | Innovative spatially polymer grid (versions) |
RU2625058C1 (en) * | 2016-08-26 | 2017-07-11 | Общество с ограниченной ответственностью "Мики" | Reinforced geogrid and method of its production |
US10577772B1 (en) * | 2019-02-13 | 2020-03-03 | Big R Manufacturing, Llc | Soil reinforcing elements for mechanically stabilized earth structures |
RU2760449C1 (en) * | 2021-05-21 | 2021-11-25 | Михаил Михайлович Азарх | Flexible strip of polymeric material containing reinforcing elements, a method of its manufacture and a three dimensional celled structure made with its use |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR873354A (en) | 1941-06-26 | 1942-07-07 | Metal frame for reinforced concrete constructions | |
FR2325778A1 (en) * | 1975-09-26 | 1977-04-22 | Vidal Henri | REINFORCEMENT FOR WORK IN ARMED EARTH |
BE896030A (en) * | 1983-02-25 | 1983-06-16 | Witte Yves De | Matting woven with strips of tufted carpet material - for geo-textile applications in soil stabilisation or civil engineering constructions |
JPS6096441A (en) | 1983-10-31 | 1985-05-30 | Nippon Denso Co Ltd | Method and apparatus for caulking metal member to resin container |
JPS6096441U (en) * | 1983-12-07 | 1985-07-01 | 津田 禎三 | reinforced soil |
DE3728255A1 (en) * | 1987-08-25 | 1989-03-09 | Huesker Synthetic Gmbh & Co | Ground anchor strip |
US4960349A (en) * | 1988-12-05 | 1990-10-02 | Nicolon Corporation | Woven geotextile grid |
DE59001339D1 (en) * | 1989-04-12 | 1993-06-09 | Vorspann Technik Gmbh | TENSION BUNDLE FROM MULTIPLE TENSIONS LIKE STRAND, ROD OR WIRE. |
JP3301155B2 (en) | 1993-04-15 | 2002-07-15 | 東レ株式会社 | Civil engineering sheet |
DE69426777T2 (en) * | 1993-10-22 | 2001-10-04 | Ile Des Brevets Henri Vidal Pa | ELEMENT FOR REINFORCING ARMED EARTHWORKS |
ZA963715B (en) * | 1995-05-12 | 1996-11-20 | Tensar Corp | Bonded composite open mesh structural textiles |
US5795835A (en) * | 1995-08-28 | 1998-08-18 | The Tensar Corporation | Bonded composite knitted structural textiles |
AU2672697A (en) * | 1996-08-14 | 1998-03-06 | Tensar Corporation, The | Bonded composite engineered mesh structural textiles |
JP3918011B2 (en) * | 2003-12-30 | 2007-05-23 | サムヤン コーポレイション | Method for producing geogrid made of fiber reinforced polymer strip |
FR2922235B1 (en) * | 2007-10-16 | 2009-12-18 | Terre Armee Int | STABILIZING STRIP INTENDED FOR USE IN STRENGTHENED SOIL WORKS |
-
2007
- 2007-07-31 FR FR0705580A patent/FR2919631B1/en active Active
-
2008
- 2008-07-24 JP JP2010518719A patent/JP5073823B2/en active Active
- 2008-07-24 MX MX2010001286A patent/MX2010001286A/en active IP Right Grant
- 2008-07-24 EP EP08827937A patent/EP2171160B1/en active Active
- 2008-07-24 WO PCT/FR2008/051397 patent/WO2009024700A1/en active Application Filing
- 2008-07-24 DE DE602008006407T patent/DE602008006407D1/en active Active
- 2008-07-24 US US12/671,284 patent/US8182177B2/en active Active
- 2008-07-24 AT AT08827937T patent/ATE506490T1/en not_active IP Right Cessation
- 2008-07-24 KR KR1020107004220A patent/KR20100071967A/en not_active Application Discontinuation
- 2008-07-24 BR BRPI0814454A patent/BRPI0814454B1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2009024700A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015110725A1 (en) * | 2014-01-27 | 2015-07-30 | Terre Armee Internationale | Reinforced stabilisation strip for reinforced embankment structures, with a functionalised casing |
FR3016904A1 (en) * | 2014-01-27 | 2015-07-31 | Terre Armee Int | REINFORCED STABILIZATION STRIP FOR REINFORCED REINFORCING ARTICLES WITH FUNCTIONALIZED SHEATH |
Also Published As
Publication number | Publication date |
---|---|
FR2919631B1 (en) | 2013-08-09 |
JP2010535299A (en) | 2010-11-18 |
WO2009024700A9 (en) | 2009-04-16 |
BRPI0814454A2 (en) | 2015-01-06 |
MX2010001286A (en) | 2010-07-30 |
JP5073823B2 (en) | 2012-11-14 |
BRPI0814454B1 (en) | 2018-12-26 |
ATE506490T1 (en) | 2011-05-15 |
EP2171160B1 (en) | 2011-04-20 |
KR20100071967A (en) | 2010-06-29 |
US8182177B2 (en) | 2012-05-22 |
US20100254770A1 (en) | 2010-10-07 |
WO2009024700A1 (en) | 2009-02-26 |
DE602008006407D1 (en) | 2011-06-01 |
FR2919631A1 (en) | 2009-02-06 |
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