EP3230509B1 - Erdverstärkendes multimodul-geotextil - Google Patents

Erdverstärkendes multimodul-geotextil Download PDF

Info

Publication number
EP3230509B1
EP3230509B1 EP15816813.8A EP15816813A EP3230509B1 EP 3230509 B1 EP3230509 B1 EP 3230509B1 EP 15816813 A EP15816813 A EP 15816813A EP 3230509 B1 EP3230509 B1 EP 3230509B1
Authority
EP
European Patent Office
Prior art keywords
geosynthetic
deformation
elongation
threads
zone
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.)
Active
Application number
EP15816813.8A
Other languages
English (en)
French (fr)
Other versions
EP3230509A1 (de
Inventor
Germain Auray
Philippe Delmas
Jacques Tankere
Jean-Paul Ducol
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.)
Afitex International SAS
Original Assignee
Texinov
Deltaval SARL
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 Texinov, Deltaval SARL filed Critical Texinov
Publication of EP3230509A1 publication Critical patent/EP3230509A1/de
Application granted granted Critical
Publication of EP3230509B1 publication Critical patent/EP3230509B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
    • 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
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
    • D10B2403/02412—Fabric incorporating additional compounds enhancing mechanical properties including several arrays of unbent yarn, e.g. multiaxial fabrics
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • D10B2505/204—Geotextiles

Definitions

  • the invention relates to a geosynthetic, either geotextile, geogrid or even geocomposite geotextile applied in the field of civil engineering, and more particularly, in the field of soil reinforcement during the production of works of the road or railway type. This type of situation can also be found under retention or water treatment basins or in the context of other types of structures, such as hydraulic structures or waste storage facilities.
  • This geosynthetic is produced in such a way that it provides soil reinforcement in a civil engineering structure to ensure high resistance performance, in particular in the case of cavities or faults leading to a risk of subsidence or collapse, or reinforcement of load transfer platforms on rigid pile-type inclusions.
  • the geosynthetic object of the invention differs from materials known from the prior art by its behavior under tensile stress. Thus, it has a very low modulus (i.e. the slope of the curve giving the tensile force on the ordinate as a function of the elongation on the abscissa) at the first level of elongation allowing a rapid initial deformation resulting collapse or local subsidence or on rigid pile-type inclusions. Then during a subsequent elongation, a higher modulus makes it possible to develop significantly greater reinforcement properties which limit the settling of the structure and ensure its safety.
  • a very low modulus i.e. the slope of the curve giving the tensile force on the ordinate as a function of the elongation on the abscissa
  • an immediate reaction of the geosynthetic is induced, tending to oppose the deformation of said geosynthetic by using in particular the characteristics of one of the fibers having the highest deformation modulus at the start, followed by a delayed reaction obtained by a second fiber with higher elongation, allowing an effect of the "safety parachute" type, that is to say avoiding a breakage of said geosynthetic, and therefore, the consequences of such a breakage of the type falling from a car or a train following the occurrence of a fault or other..
  • a similar reasoning can be used for the calculation of geosynthetic reinforcement in load distribution mattresses on inclusions.
  • deflection denotes the difference between the initial elevation of the geosynthetic when the layer is positioned horizontally, and the elevation reached by said layer at the lowest point of the deformation.
  • the deformation of the geosynthetic designates its local elongation (expressed in %) under the effect of the tensile stress.
  • the modulus of a geosynthetic for a given strain ⁇ is the quotient of the tensile force over the strain.
  • the differential in the elongation capacities results from the nature of the yarns constituting the geosynthetic and/or from the structure of said geotextile, for example by the creation of a bunding of the fibers.
  • the geosynthetic of the invention makes it possible to obtain a material with a traction curve with at least a double slope.
  • the product has in particular in the first zone of elongation a very low modulus (even almost zero), then in the second zone of elongation a high deferred modulus (value 500 to 3000 kN/m at least, or even much more.
  • the invention can also provide a third elongation zone, with either an intermediate module (creation of a safety "parachute” effect - see above), or a higher module providing ultimate safety in the event of risk of enlargement of the cavity to very large dimensions (from 5 to 15 or 30 meters in diameter or width).
  • the objective is to reinforce soil at risk, that is to say likely to see cavities or faults appear, by integrating into the latter a warning function provided by the initial deformation of the geotextile, making it detectable, in particular visually, limited settling of the structure.
  • This detection will be perceptible either on the surface of the structure and will then be visual or instrumented, or by measurement at the level of the geosynthetic positioned under the embankment.
  • instrumentation is for example made up of optical fibers associated with a Braggs grating or of the Brillouin type, extensometers bonded or attached to the geosynthetic, or any other means capable of detecting a modification of a physical quantity, such as a length.
  • These instrumented detection systems are integrated into the textile construction or attached at a later stage by gluing or any other fixing means.
  • the geosynthetic must be dimensioned according to the expected maximum size of the cavity or the fault on the considered site. For the maximum surface settlement, this freezes the maximum deflection of said geosynthetic, and therefore the minimum modulus at the maximum deformation of the geosynthetic ( ⁇ max ).
  • the invention proposes a geosynthetic capable of deforming during the opening phase of the cavity, or of the fault, while guaranteeing the specifications, both in terms of settlement and in terms of resistance, for the final configuration of the notebook.
  • the geosynthetic of the invention allows settlement to occur while ensuring the stability of the structure. and guaranteeing compliance with the specifications, and the allowable settlement of the fill on the surface. It thus makes it possible to obtain intermediate deformations ( ⁇ int ) much greater than those obtained with a single module (of the order of 2 to 3 times). This then makes it possible to reach easily measurable levels of deformation from the beginning of the phenomenon of formation of the cavity or the fault, and thus to study or monitor the evolution of the situation to intervene if necessary before risk of rupture or simply plan the rehabilitation of the structure.
  • the higher modulus allows the geosynthetic to oppose significant displacements of the ground, guaranteeing the stability of the work according to the specifications.
  • the invention makes it possible to propose a solution at least at the level of securing, by accepting a significant apparent deformation, but by making the polymer work once the membrane effect, that is to say the distribution of the forces in the different solicitation directions, already well in place.
  • the multi-module product of the invention having a high modulus shifted with respect to the origin, has advantages in other applications of the rigid inclusion type.
  • the geosynthetic is then installed at the base or up to mid-height (possibly in several layers) of the load transfer layer above the rigid inclusions.
  • An initial deformation, before stressing the geosynthetic in the high modulus zone, allows a deformation which reduces the maximum necessary resistance of said geosynthetic, or improves the load transfer on the inclusions.
  • This geosynthetic allows a first distribution of the transfer of loads on the rigid inclusions before opposing subsequent and long-term deformations thanks to the higher modulus.
  • the embankment is placed in two stages: a first stage of depositing part of the embankment, followed by compaction inducing the deformation of the geosynthetic for its establishment and its tensioning. . Undulations are observed in the embankment layer put in place, which is filled in during a second stage by adding embankment, which hardly deforms any more on compaction, the geosynthetic then working in the high modulus zone.
  • the geosynthetic is a knitted structure produced by warp stitch technology, integrating in warp (production direction) a first series of straight yarns, and a second series of yarns linked to possible yarns of weft (arranged crosswise), or to a possible support material (case of a geocomposite, and for example consisting of a woven, a non-woven, a knitted structure, a film, a membrane, or even several layers of these materials.) by binding son capable of giving them an undulation of amplitude chosen according to the desired shrinkage and, as a corollary, the constitutive law, and in particular the limits of the deformation zones of said geosynthetic.
  • the geosynthetic is a woven structure, consisting of a plain weave or taffeta base, with threads in floated form in warp or weft, that is to say passing over several warp or weft yarns, the quantity of warp or weft yarns passed conditioning the behavior law, and in particular the limits of the deformation zones of said geosynthetic under the effect of immediate traction.
  • the floats being less wavy, are immediately put in tension during the tensile stress of the geosynthetic, which corresponds to the first zone of the stress/deformation curve.
  • the constituent yarns of the structure as well as optionally the binding yarns are made from fibers with high tensile strength, and preferably chosen from the group comprising PET (polyethylene terephthalate), polyamide, polypropylene, polyethylene, polyvinyl acetate, aromatic polyesters (for example Vectran ® ), aramid, carbon, steel, stainless steel, biosourced fibers (polylactic acid, polybutylene succinate ( PBS)), or even natural fibers (cotton, hemp or linen).
  • PET polyethylene terephthalate
  • polyamide polypropylene
  • polyethylene polyethylene
  • aromatic polyesters for example Vectran ®
  • aramid aromatic polyesters
  • carbon steel
  • steel stainless steel
  • biosourced fibers polylactic acid, polybutylene succinate ( PBS)
  • PBS polybutylene succinate
  • natural fibers cotton, hemp or linen
  • the geosynthetic can be combined with another geosynthetic capable of additionally ensuring the functions of drainage, filtration, protection, even total or partial sealing, anti-contaminant, vector miscibility, anti-pollution treatment, etc.
  • the geosynthetic 1 is intended to support the embankment 4, placed on the ground 2, liable to present risks of localized collapse due to the opening of cavities or faults 3.
  • the fault is represented, but it is obvious that during the construction phase, the fault does not yet exist.
  • the geotextile of the invention surmounted by the embankment 4 sags locally directly above said fault, this sag being intended to be visible or in any case detectable. by instrumentation at the level of the geotextile.
  • the geotextile of the invention has a particular behavior, illustrated in particular in relation to the curve of the figure 5 .
  • the curve which is at a certain level of resistance R1 calculated for the installation and according to the requirements of the specifications of the work allows a relatively substantial deformation of the geosynthetic, which can go from a low value, for example 0.5 to 3% up to higher values (2 to 5, or even 6% if necessary).
  • a deformation of the geosynthetic and as a corollary of the embankment which covers it, in order to be detectable, in order to play the role of warning in the event of the occurrence of a collapse or subsidence following the formation of a cavity or fault.
  • This deformation is also desired in order to allow tensioning of the geotextile in the case of a work to be carried out using rigid inclusions.
  • the curve straightens very strongly in B to react and oppose the deformation of the geosynthetic, and as a corollary to the displacement of the soil or to the subsidence or collapse during the formation of a cavity or to initiate the tensioning geosynthetic on rigid inclusions.
  • the method of placing the geotextile of the invention in two stages, the first to ensure the tensioning of the geotextile, and the second to finalize the backfill ensures a greater load transfer on the rigid inclusions, allowing a more economical design of the inclusions: thus, by increasing the authorized spacing between the inclusions (mesh), it is possible to reduce the overall quantity.
  • the slope bends (zone C) so as to make visible settlement of the surface of the structure: in this case, which can occur for example in the event of opening of the cavity in several phases, the geosynthetic plays at again its role as a warning device and the deformation visible on the surface indicates the need for repairs to the structure. Nevertheless, the geosynthetic, even deformed, allows an anti-fall safety since it prevents the collapse which would normally result from the opening of the cavity.
  • zone C' the slope increases further (zone C') compared to zone B': this case also corresponds to the possibility of opening the cavity in several phases, but assuming this time that the specifications do not authorize only a very low additional settlement: it is understood that in this case, the modulus of the geosynthetic in this third part must be even higher in order to take up significant efforts while limiting the deformation (zone D').
  • the Figure 7A thus illustrates a first example of construction of a monodirectional geosynthetic (without wefts) responding to the desired application.
  • This is a schematic representation in which a first series of threads 71 are arranged in a rectilinear manner in the production direction (warp).
  • a second series of wires 72 is introduced according to a structure imposing on said wires a determined undulation.
  • the “undulation” of the threads 72 occurs while an elongation of the geosynthetic is exerted, authorized by deformation of the connecting structure, which consists of threads 73 and 74 themselves at high elongation, and possibly up to the breakup.
  • the threads 72 will only begin to intervene from this value. Beyond the latter, there is an addition of the resistances of the wires 71 and 72, and a resulting curve (zone B or B'), whose slope or modulus will be defined by the characteristics of the wires used.
  • the threads 72 may only be connected every “n” rows of stitches so as to introduce only a very small offset. So in the figure 7B , the bonding of the yarns 72b can be modified with a bond on the mesh yarn only every four rows allowing a lower shrinkage when this is desired.
  • the Fig. 7C also illustrates a different bottom structure variant for binding.
  • Other types of bonding and weaves can be considered, the common point always being a controlled curling of the fibers ensuring the second level of resistance and deformation
  • the figures 8A and 8B represent other constructions, in which the yarns 82a and 82b evolve with a greater amplitude on suitable bindings, for example in the form of sectional wefts under two needles with chain, double knit or other bindings, precisely authorizing this evolution of on the one hand, and allowing a certain freedom of movement of the corrugated son 82a and 82b, during their tensile stress on the other hand.
  • the resulting curve (zone A) with a relatively low slope can then have a longer first part.
  • transverse wefts illustrated in broken lines have been introduced, offering the possibility of using only three son guide bars because it is possible in such a case to have only one set of binding son 83b.
  • this construction turns out to be more economical.
  • a nonwoven, a woven or a veil 86 can be added directly during the manufacturing step.
  • the Fig. 8C is another example of construction of the geosynthetic of the invention, in which all the wires or cables are arranged on the same guide line (designated wire guide bar), but with a double positive supply with a different flow rate. This solution is possible when the desired difference or phase shift between the first part of the curve (zone A) and the second part of the curve (zone B) is relatively small.
  • the threading of the wires or cables is then carried out with, for example, the repetition of a type 81b wire, then a type 82b wire.
  • the choice of the nature of the yarns making up the geosynthetic in question is very precisely adapted to the specific conditions of the structure and the site.
  • It can be standard polyester or retracted type with high elongation curve), polyamide, polypropylene or high strength polyethylene but with an elongation at break of around 20%.
  • Fibers can also be used, whether synthetic, chemical or even natural, depending on the requirements of the work.
  • high modulus yarns 72, 72b, 82a, 82b arranged with overfeed or crimp it is to use high strength or high modulus yarns like HT (high tenacity) polyester, aramid fibers, PVA (polyvinylacetate), glass, carbon, basalt, HT polyethylene (high tenacity), or even fibers such as Vectran ® (aromatic polyester), etc...
  • HT high tenacity
  • aramid fibers polyvinylacetate
  • PVA polyvinylacetate
  • glass carbon
  • carbon basalt
  • HT polyethylene high tenacity
  • Vectran ® aromatic polyester
  • polypropylene in the position of the yarns 71, 81a or 81b and a high modulus fiber insensitive to an alkaline medium such as PVA for the yarns 72, 72b, 82a or 82b.
  • the binding threads can be standard, and typically made of polyester or polyethylene. Indeed, their low resistance allows a fusible effect in phase 1 (zone A) to allow passage to phase 2 (zone B, B').
  • the geotextile of the invention can also have a woven structure, and no longer a knitted one.
  • the figures 9 and 10 represent two embodiments implementing such a woven structure.
  • the figure 10 illustrate another weave, in which we find exactly the same principle but with two different sets of threads in addition to the basic taffeta 100, 101.
  • the threads 101 of the base fabric only come into play when they are "unwavy"; they are based on the most efficient material in terms of mechanical properties and act on the second part (zone B) of the geosynthetic's tensile curve.
  • the wires 102 and 102' are stressed immediately when the geosynthetic is subjected to traction, that is to say corresponding to zone A of the curve of the figure 5 .
  • the yarns 102 and 102' have floats of different lengths, and therefore different embuvages, in addition to the different type of materials constituting them, different slopes of the starting tensile curves are obtained. More specifically, a traction curve with three successive slopes is obtained, as illustrated on the figures 6A and 6B .
  • the figures 9B and 10B are schematic representations of the weaves, to program them on the looms.

Landscapes

  • Engineering & Computer Science (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)
  • Structural Engineering (AREA)
  • Textile Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Revetment (AREA)

Claims (8)

  1. Erdverstärkendes Geotextil mit einer Verformungskurve, deren Steigung das Geotextilmodul darstellt, mit der Verformung in der x-Achse und der aufgebrachten Spannung in der y-Achse, mit mindestens zwei getrennten Dehnungszonen unter Spannung in mindestens einer Richtung, und zwar jeweils:
    • eine erste Zone (A) mit starker Dehnung für die Verformung des Geokunststoffs zwischen 0 % und einem Grenzwert zwischen 0,5 % und 6 % in mindestens einer Richtung für Zugspannungen von 0 und 10 bis 400 kN/m, die diesem Verformungsgrenzwert entspricht;
    • eine zweite Dehnungszone (B) über die erste Dehnungszone (A) hinaus, mit einer maximalen Verformung von 2 % bis 20 % in mindestens einer Richtung, für Spannungen zwischen 100 und 3000 kN/m mindestens, die dieser maximalen Verformung entsprechen, gekennzeichnet durch eine Kurvensteigung, die höher ist als die der ersten Dehnungszone (A),
    der Unterschied der Dehnungszonen ist auf die Natur der Fäden zurückzuführen, aus denen das Geotextil besteht, und/ oder auf die Struktur des Geotextils.
  2. Erdverstärkendes Geotextil nach Anspruch 1, dadurch gekennzeichnet, dass es aus einer gewirkten Struktur besteht, ausgeführt durch Kettenwirktechnik, die in der Kette eine Reihe rechtwinkliger Fäden (71, 81), enthält und eine oder mehrere Reihen Kettfäden (72, 82), verbunden mit den eventuellen Schusssfäden oder einem eventuellen Trägermaterial über Bindungsfäden, durch die sie eine Amplitudenwelligkeit erhalten können, die gewählt wird entsprechend der gewünschten Welligkeit und gleichzeitig der Bedeutung des Verhaltensgesetzes und insbesondere die Grenzwerte der Verformungszonen, die diese Geotextil erhalten soll.
  3. Erdverstärkendes Geotextil nach Anspruch 2, dadurch gekennzeichnet, dass das Trägermaterial aus einem Gewebe, einem Vlies, einem Gestrick, einer Folie, einer Membran oder sogar mehreren Materialschichten besteht.
  4. Erdverstärkendes Geotextil nach Anspruch 1, dadurch gekennzeichnet, dass es aus einem Gewebe besteht, bestehend aus einer Basis mit Leinwandbindung oder Taftbindung, vom Typ Atlas oder Rippen, unter Einlage von Fäden in flottierender Form in Kette oder Schuss, das heißt, die über mehrere Kett- und/ oder Schussfäden hinwegführen, die Menge der übersprungenen Kett- oder Schussfäden bestimmt das Verhalten des Geotextils der Wirkung der sofortigen Zugdehnung.
  5. Erdverstärkendes Geotextil nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Fäden, aus denen die Struktur besteht, aus Fasern mit hoher Zugfestigkeit bestehen, vorzugsweise ausgewählt aus der Gruppe mit PET, d.h. Polyethylenterephthalat, Polyamid, Polypropylen, Polyethylen, Polyvinylacetat, aromatische Polyester, Aramid, Kohlenstoff, Stahl, Edelstahl, biobasierte Faser, wie Polymilchsäure, Polybutylensuccinat (PBS), sogar natürliche Fasern, wie zum Beispiel Baumwolle, Hanf oder Leinen.
  6. Erdverstärkendes Geotextil nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass es kombiniert ist mit einer oder mehreren Materialschichten, vom Typ Gewebe, Vlies oder einem Gewirk, das zusätzlich die Funktionen Drainage, Filterung, Schadstoffrückhaltung, Mischungsvektor, vollständige oder teilweise Abdichtung, Umweltschutzbehandlung erfüllt.
  7. Erdverstärkendes Geotextil nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass in der Textilstruktur integriert oder in einem späteren Schritt durch Kleben oder irgendeine andere Befestigungsart hinzugefügt, ein Verfahren zur Messung der Verformung enthalten ist, vom Typ optische Faser mit Bragg-Gitter oder vom Typ Brillouin-Streuung oder ähnliches oder Dehnungsmessstreifen.
  8. Erdverstärkendes Geotextil nach Anspruch 1, dessen Verformungskurve eine dritten Dehnungszone (C) enthält, jenseits der erwähnten zweiten Dehnungszone, in der das geosynthetische Modul höher oder niedriger, als dass der erwähnten ersten und zweiten Dehnungszone ist.
EP15816813.8A 2014-12-11 2015-11-16 Erdverstärkendes multimodul-geotextil Active EP3230509B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1462214A FR3029943B1 (fr) 2014-12-11 2014-12-11 Geosynthetique de renforcement de sol a comportement multi-module
PCT/FR2015/053077 WO2016092167A1 (fr) 2014-12-11 2015-11-16 Geosynthetique de renforcement de sol a comportement multi-module

Publications (2)

Publication Number Publication Date
EP3230509A1 EP3230509A1 (de) 2017-10-18
EP3230509B1 true EP3230509B1 (de) 2022-01-12

Family

ID=52589589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15816813.8A Active EP3230509B1 (de) 2014-12-11 2015-11-16 Erdverstärkendes multimodul-geotextil

Country Status (4)

Country Link
EP (1) EP3230509B1 (de)
FR (1) FR3029943B1 (de)
HU (1) HUE057836T2 (de)
WO (1) WO2016092167A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3065320C (en) 2017-06-16 2023-09-05 Saint-Gobain Adfors Canada, Ltd. Sensing textile
CN108108507B (zh) * 2017-08-26 2021-03-30 中铁二院工程集团有限责任公司 一种高强土工布加固铁路岩溶路基的设计方法
FR3080864B1 (fr) * 2018-05-03 2020-05-01 Texinov Produit geotextile ou de construction de renfort instrumente
CN109024666B (zh) * 2018-09-11 2024-03-15 中铁磁浮交通投资建设有限公司 一种具有防治和预警岩溶塌陷的墙网组合结构和施工方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855678A (en) * 1968-11-21 1974-12-24 Owens Corning Fiberglass Corp Method of making woven sheet for rubber reinforcement
GB2017162A (en) * 1978-03-22 1979-10-03 Finquattro Spa Loom for Producing Fancy Yarns
JP3020863B2 (ja) * 1996-02-23 2000-03-15 栄レース株式会社 レース編物の編成方法及びレース編物
FR2767344B1 (fr) 1997-08-13 1999-11-05 Bidim Geosynthetics Sa Geosynthetique pour dispositif de renforcement de sols a risques d'effondrement
DE102006023588B3 (de) * 2006-05-17 2007-09-27 Sächsisches Textilforschungsinstitut eV Verwendung eines multifunktionalen, sensorbasierten Geotextilsystems zur Deichertüchtigung, für räumlich ausgedehntes Deichmonitoring sowie für die Gefahrenerkennung im Hochwasserfall
FR2932820B1 (fr) 2008-06-23 2012-11-16 Mdb Texinov Sa Nappe et grille de renfort avec introduction de fibres minerales pour les ouvrages de genie civil.

Also Published As

Publication number Publication date
FR3029943A1 (fr) 2016-06-17
EP3230509A1 (de) 2017-10-18
WO2016092167A1 (fr) 2016-06-16
FR3029943B1 (fr) 2016-12-30
HUE057836T2 (hu) 2022-06-28

Similar Documents

Publication Publication Date Title
EP3230509B1 (de) Erdverstärkendes multimodul-geotextil
EP3259391A2 (de) Geotextil zur verstärkung, zur bekämpfung von erosion und zur unterstützung der rekultivierung
CA3075033C (en) Geocell for moderate and low load applications
CA2657712C (fr) Dispositif, systeme et procede de detection et de localisation de dysfonctionnement dans un ouvrage hydraulique, ainsi qu'un ouvrage hydraulique equipe de ce dispositif
EP2304089B1 (de) Tuch und verstärkungsnetz mit einsatz von mineralfasern für zivile technische arbeiten
EP2079864B1 (de) Verbundgeotextil für hoch- und tiefbau
CA2828332A1 (fr) Armature de renfort d'elements a matrice minerale
EP0897035B1 (de) Geosynthetische Verstärkungsschicht für setzungsgefährdetes Erdreich
EP2912230B1 (de) Struktur mit geotextil
KR101186511B1 (ko) 아스팔트 보강용 텍스타일 지오그리드의 제조방법, 이로부터 형성된 텍스타일 지오그리드 및 이를 이용한 아스팔트 포장방법
JP5808002B2 (ja) 主として瓦礫を用いたふとん篭
JP2013249576A (ja) 土木用シート
EP2155944B1 (de) Struktur aus gewirktem stoff auf basaltbasis
EP2004917A1 (de) Geotextilverstärkungsprodukt mit befestigungselement
KR102494814B1 (ko) 스트랜드, 로프 및 보행매트
FR3080864A1 (fr) Produit geotextile ou de construction de renfort instrumente
Pritchard et al. A more sustainable solution to geosynthetic products for short-term reinforcing applications
EP4347935A1 (de) Geosynthetisches material aus einer gestrickten textilstruktur und verfahren zu seiner herstellung
JP3616772B2 (ja) ジオグリッド、及びそれを用いた盛土の補強方法
WO2021254814A1 (fr) Coffrage à ductilité renforcée avec cage d'armatures tridimensionnelle repliable.
Pritchard et al. International SEEDS Conference: Engineering Design for Society
Das et al. Tear Propagation of Spun-bonded Nonwoven Geotextiles at Repeated Bursting Pressure Cycle
Koerner et al. ‘Creep and relaxation of geotextile fabrics’ by G. den Hoedt: Reply to the Discussions of Robert M. Koerner and Gregory N. Richardson, and NE Wrigley and DI Bush, by G. den Hoedt (Enka Research Institute, Velperweg 76, Postbus 60, 6800 AB Arnhem, The Netherlands)
FR2824570A3 (fr) Protection vis a vis de l'incendie par des blocs de beton ancres des ouvrages de terres renforces par des geotextiles ou produits assimiles
Zannoni Criteria for the choice of geosynthetics in soil reinforcement: geosynthetics

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170522

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210406

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

INTG Intention to grant announced

Effective date: 20211119

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015076446

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1462452

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602015076446

Country of ref document: DE

Owner name: AFITEX INTERNATIONAL, FR

Free format text: FORMER OWNERS: DELTAVAL, LYON, FR; TEXINOV, SAINT DIDIER DE LA TOUR, FR

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: AFITEX INTERNATIONAL

REG Reference to a national code

Ref country code: BE

Ref legal event code: PD

Owner name: AFITEX INTERNATIONAL; FR

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: DELTAVAL

Effective date: 20220309

REG Reference to a national code

Ref country code: NL

Ref legal event code: PD

Owner name: AFITEX INTERNATIONAL; FR

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: TEXINOV

Effective date: 20220309

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: BE

Ref legal event code: PD

Owner name: AFITEX INTERNATIONAL; FR

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: DELTAVAL

Effective date: 20220328

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20220505 AND 20220512

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1462452

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220112

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E057836

Country of ref document: HU

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220512

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220412

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220413

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220512

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015076446

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

26N No opposition filed

Effective date: 20221013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230527

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20231120

Year of fee payment: 9

Ref country code: LU

Payment date: 20231120

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231123

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20231124

Year of fee payment: 9

Ref country code: IE

Payment date: 20231121

Year of fee payment: 9

Ref country code: HU

Payment date: 20231122

Year of fee payment: 9

Ref country code: FR

Payment date: 20231106

Year of fee payment: 9

Ref country code: DE

Payment date: 20231121

Year of fee payment: 9

Ref country code: CH

Payment date: 20231201

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20231120

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112