EP3230509A1 - Géosynthétique de renforcement de sol à comportement multi-module - Google Patents
Géosynthétique de renforcement de sol à comportement multi-moduleInfo
- Publication number
- EP3230509A1 EP3230509A1 EP15816813.8A EP15816813A EP3230509A1 EP 3230509 A1 EP3230509 A1 EP 3230509A1 EP 15816813 A EP15816813 A EP 15816813A EP 3230509 A1 EP3230509 A1 EP 3230509A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- geosynthetic
- deformation
- elongation
- zone
- son
- 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
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 14
- 239000000835 fiber Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 16
- -1 polypropylene Polymers 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 10
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 9
- 239000011118 polyvinyl acetate Substances 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 239000004760 aramid Substances 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229920003235 aromatic polyamide Polymers 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 4
- 238000004049 embossing Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 235000009120 camo Nutrition 0.000 claims description 2
- 235000005607 chanvre indien Nutrition 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 claims description 2
- 239000011487 hemp Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 2
- 229920002961 polybutylene succinate Polymers 0.000 claims description 2
- 239000004631 polybutylene succinate Substances 0.000 claims description 2
- 239000004626 polylactic acid Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 239000004746 geotextile Substances 0.000 description 21
- 238000012546 transfer Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 229920000508 Vectran Polymers 0.000 description 2
- 239000004979 Vectran Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
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- 238000011084 recovery Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
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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, geo-textile, geogrid or geocomposite geotextile applied in the field of civil engineering, and more particularly, in the field of soil reinforcement during the construction of road-type structures. or rail. This type of situation can also be found under water retention or treatment basins or in other types of structures, such as hydraulic structures or waste storage facilities.
- This geosynthetic is made so that it provides soil reinforcement in a civil engineering structure to ensure a high performance of resistance, especially in the case of cavities or faults causing a risk of collapse or collapse, or a reinforcement of the load transfer platforms on rigid inclusions of piles type.
- the geosynthetic object of the invention differs from the materials known from the prior art by its behavior under traction force.
- it has a very low modulus (that is to say 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 local collapse or subsidence or rigid pile-type inclusions.
- a higher module makes it possible to develop significantly greater reinforcing properties that limit the settlement of the structure and ensures its safety.
- Geotextiles or reinforcement geosynthetics are commonly used in civil engineering structures as reinforcement structures subject to stress.
- the prior state of the art consists of sizing the geosynthetic as follows: determination of the maximum allowable deflection for the geosynthetic in order to guarantee a maximum level of settlement at the surface of the embankment covering said geosynthetic; this maximum admissible deflection of the geosynthetic corresponds to a maximum deformation (s max ) thereof; it follows the definition of a minimum geotextile module corresponding to this deformation (s max ), guaranteeing the maximum deflection of the geosynthetic and therefore the maximum settlement on the surface;
- Analogous reasoning can be used for the calculation of reinforcement geosynthetics in the load distribution overlays on inclusions.
- arrow is meant the difference between the initial geosynthetic dimension when the web is positioned horizontally, and the dimension reached by said web at the lowest point of the deformation.
- the deformation of the geosynthetic designates the local elongation of the latter (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 on the deformation.
- the present invention relates to a geosynthetic soil reinforcement, particularly in such situations of cavities, faults or load transfer platforms, exhibiting a behavior in two steps:
- the invention proposes a reinforcing geosynthetic having at least two different elongation zones under tension in at least one direction, respectively:
- a first major elongation zone for a deformation of the geo synthetic between 0% and a limit of between 0.5 and 6% deformation in at least one direction for voltages between 0 and 10 to 400 kN / m corresponding to this deformation limits;
- a second elongation zone beyond said first elongation zone, characterized by a maximum deformation of between 2 and 20% of deformation in at least one direction for voltages of between 100 and 3000 kN / m corresponding to this maximum deformation.
- the differential of the elongation capacities results from the nature of the constituent yarns of the geo synthetic and / or the structure of said geotextile for example by the creation of a fiber embossing.
- the geosynthetic of the invention makes it possible to obtain a material with a traction curve with at least two slopes.
- the product has in particular in the first elongation zone a very low (or almost zero) module, then in the second elongation zone a high deferred modulus (value 500 to 3000 kN / m at least, or even much more.
- the invention may furthermore provide a third zone of elongation, with either an intermediate module (creation of a safety "parachute” effect - see above), or a higher module providing ultimate security 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 a soil at risk, that is to say likely to appear cavities or faults, integrating in the latter a warning function provided by the initial deformation of the geotextile, making it detectable, in particular visually, a limited settlement of the structure.
- This detection will be perceptible either on the surface of the work and will be visual or instrumented, or by measurement at the geosynthetic positioned under the embankment.
- Such an instrumentation consists, for example, of optical fibers associated with a Braggs or Brillouin-type network, of extensometers bonded or reported on the geosynthetic, or of 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 reported in a subsequent step by gluing or any other means of attachment.
- the geosynthetic must be dimensioned according to the maximum size expected of the cavity or the fault on the considered site. For the maximum settlement on the surface, this fixes the maximum deflection of said geosynthetic, and therefore the minimum modulus at the maximum deformation of the geosynthetic (s max ).
- the geotextile is designed for a larger cavity.
- the geotextile is designed to resist over time with a material (polymer) that flows, that is to say whose elongation, when actually subjected to a stress, increases with time.
- the geotextile is therefore oversized so that its resistance is still sufficient after 2, 10, 25 or 100 years according to the specifications.
- the invention proposes a geosynthetic able to deform during the opening phase of the cavity, or the fault, while ensuring the specifications, both in terms of settlement and in terms of strength, for the final configuration of the notebook charges
- the geosynthetic of the invention allows the settlement to occur while ensuring the stability of the structure and by ensuring compliance with the specifications, and the permissible settlement of the surface fill. It thus makes it possible to obtain intermediate deformations (if nt ) much higher than those obtained with a mono 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 formation of the cavity or 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 module allows the geosynthetic to oppose the important displacements of the soil, guaranteeing the stability of the structure following the specifications.
- the invention makes it possible to propose a solution at least at the level of the security, 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 directions of solicitation, already well in place.
- the multi module product of the invention having a high modulus offset from the origin, has advantages in other rigid inclusion type applications.
- the geosynthetic is then installed at the base or up to mid-height (possibly in several layers) of the charge transfer layer above the rigid inclusions.
- An initial deformation, before solicitation of the geosynthetic in the high modulus zone, allows a deformation which reduces the maximum required resistance of said geosynthetic, or improves the charge transfer on the inclusions.
- This synthetic geo allows a first distribution of the charge transfer on the rigid inclusions before opposing the subsequent and long term deformations thanks to the higher modulus.
- the embankment is placed in two stages: a first step of depositing a portion of the embankment, followed by compaction inducing the deformation of the geosynthetic for its implementation and its tensioning . There are undulations of the backfill layer in place, which is filled in a second step by adding backfill, which is almost no longer deformed to compaction, the geosynthetic then working in the high modulus zone.
- the geosynthetic is a knitted structure made by discarded mesh technology, incorporating into a chain (production direction) a first series of rectilinear yarns, and a second series of yarns linked to possible yarns. weft (arranged in transverse directions), or to a possible support material (in the case of a geocomposite, and for example constituted by a woven fabric, a nonwoven fabric, a knitted structure, a film, a membrane or even several layers of these materials) by binding yarns capable of imparting to them an undulation of amplitude chosen as a function of the desired embolization and, consequently, of the constitutive law, and in particular the limits of the deformation zones of said geosynthetic.
- the geosynthetic is a woven structure, constituted by a base with plain weave or taffeta, with son in a form floated in warp or weft, that is to say passing over several warp or weft son, the amount of past warp or weft son conditioning the constitutive 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 / strain curve.
- the constituent yarns of the structure as well as, optionally, the binding yarns are made from fibers with a high tensile strength, and preferably chosen from the group comprising PET (polyethylene terephthalate), polyamide, polypropylene, polyethylene, polyvinyl acetate, aromatic polyester (eg 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
- polyvinyl acetate aromatic polyester
- aramid aromatic polyester
- carbon steel
- stainless steel stainless steel
- biosourced fibers polylactic acid, polybutylene succinate ( PBS)
- PBS polybutylene succinate
- natural fibers cotton, hemp or linen
- the geosynthetic may be associated with another geosynthetic capable of additionally providing the functions of drainage, filtration, protection, or even total or partial sealing, of anti-contaminant, vector miscibility, anti-pollution treatment, etc.
- the multi-module geo synthetic of the invention offers significant advantages in terms of performance and economic gains. In the different variants it allows:
- the geo synthetic of the invention may have at least three different elongation zones under tension in at least one direction, respectively:
- a first major elongation zone for deformation of the geosynthetic between 0.5 and 6% in at least one direction for voltages between 0 and 400 kN / m corresponding to this limiting deformation;
- Figure 1 is a schematic representation in section of a work positioned above a fault or cavity, implementing a geosynthetic.
- FIGS. 2A and 2B schematically illustrate two configurations of structures on rigid inclusions, without (FIG. 2A) and with FIG. 2B, charge transfer platform.
- FIGS. 3A and 3B respectively illustrate, according to the prior art and according to the invention, the principle implemented, and in particular the "membrane" effect.
- Figures 4A and 4B are views similar to views 3A and 3B, tending to illustrate the principle implemented by the invention on rigid inclusions.
- FIG. 5 is a representation of the variation of the geo synthetic module of the invention, with the deformation on the abscissa and the applied voltage on the ordinate.
- the first zone of elongation according to the invention corresponds to the part A on the axis of the deformations, the following zones to parts B and B '(etc)
- FIGS. 6A and 6B are curves similar to FIG. 5 of variants of the invention.
- Figures 7A, 7B and 7C are schematic representations of different variants of the geosynthetic of the invention, the latter being then a knitted structure.
- FIGS. 8A, 8B and 8C are other variants of the geosynthetic of the invention, still in knitted mode.
- Figures 9A and 9B illustrate another embodiment of the geosynthetic of the invention, the latter being in woven mode.
- Figures 10A and 10B are views similar to Figures 8A and 8B of an alternative embodiment.
- FIG. 1 shows one of the preferred applications of the invention.
- the geosynthetic 1 is intended to support the embankment 4, placed on the ground 2, likely 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 exist yet.
- the geotextile of the invention surmounted by the embankment 4 collapses locally in line with said fault, this subsidence being intended to be visible or in any case detectable. by instrumentation at the geotextile level.
- the geotextile of the invention exhibits a particular behavior, illustrated in particular in relation to the curve of FIG. 5.
- the curve which is at a certain level of resistance RI calculated for the implementation and according to the requirements of the book specifications, allows a relatively consistent deformation of the geosynthetic, which can range from a low value, for example 0.5 to 3% up to values more high (2 to 5, even 6% if necessary).
- This deformation is also desired to allow the tensioning of the geotextile in the case of a structure to be implemented using rigid inclusions.
- the effect of soil swelling and the vault effect may render the surface deformation invisible, which is not satisfactory if the developer wishes to intervene or at least plan an intervention from the beginning of the project.
- formation of the cavity or fault for repair in order to secure its structure and not to take the risk of a major subsequent disaster, when the cavity would eventually exceed in diameter the values provided by geologists.
- the method of setting up the geotextile of the invention in two stages, the first to ensure the tensioning of the geotextile, and the second to finalize the embankment, ensures a greater load transfer on the rigid inclusions, allowing a more economical design of the inclusions: thus, by increasing the allowed spacing between the inclusions (mesh), it is possible to decrease the overall quantity.
- FIGS. 6A and 6B show curves similar to that of FIG. 5. The starting of these curves is substantially identical to that of FIG. 5, that is to say a slight slope, followed by a much greater slope, in order to achieve the above result.
- the slope curves (zone C) so as to make visible a surface settlement of the structure: in this case, which can occur for example in case of opening of the cavity in several phases, the geosynthetic plays again its role of alarm and the visible deformation on the surface indicates the necessity of a repair of the work. Nevertheless, the geosynthetic, even deformed, allows an anti-fall safety since it prevents the collapse that would normally follow the opening of the cavity.
- the fibers used may be the following:
- Zone B Aramid or PVA (polyvinyl acetate) to impart properties to Zone B;
- PET HT high-resistance PET
- zone C the slope increases further (zone C) with respect to zone B ': this case also corresponds to the possibility of an opening of the cavity in several phases, but this time assuming that the specifications allow only a very small additional settlement: it is understood that in this case, the geo-synthetic module in this third part must be even higher in order to recover significant efforts by limiting the deformation (D 'zone). ).
- the fibers used may be the following:
- FIGS. 7A to 7C show a first embodiment of the geosynthetic of the invention, which has a knitted structure. This knitted structure is obtained according to the technology knit jetty.
- FIG. 7A thus illustrates a first example of construction of a monodirectional (frameless) geosynthetic that satisfies the desired application.
- This is a schematic representation in which a first series of son 71 is arranged in a rectilinear manner in the production direction (chain).
- a second series of son 72 is introduced in a structure imposing said son a given undulation.
- corrugations of the wires 72 thus generate a clogging, whose amplitude can be modulated according to the desired size of the zone A of the curves of FIGS. 5 and 6.
- the "stranding" of the yarns 72 takes place while an extension of the authorized geosynthetic is exerted by deformation of the connecting structure, which consists of yarns 73 and 74 which are themselves of high elongation, and possibly up to break.
- the son 72 will start to intervene only from this value. Beyond the latter, there is addition of the resistances of the son 71 and 72, and a resultant curve (zone B or B '), whose slope or module will be defined by the characteristics of the son used.
- the wires 72 may be connected only to all the "n" rows of meshes so as to introduce only a very small offset.
- the binding of the yarns 72b can be modified with a connection on the gillnetting thread only in the four rows allowing a lower filling when this is desired.
- Figure 7C also illustrates a different bottom structure variant for bonding.
- Other types of binding and armor can be envisaged, the common point being always a controlled filling of the fibers ensuring the second level of resistance and deformation
- FIGS. 8A and 8B show other constructions, in which the wires 82a and 82b evolve with greater amplitude on suitable bonds, for example in the form of two-needle sectional frames with chain, double-knit or other bonds, authorizing precisely this evolution on the one hand, and allowing a certain latitude of displacement of the corrugated son 82a and 82b, during their stress on the other hand.
- the resulting curve (zone A) with a relatively low slope can then have a longer first portion.
- transverse frames illustrated in dashed lines have been introduced, offering the possibility of using only three wire guide bars because it is possible in such a case to have only one set of binding threads 83b.
- this construction is more economical.
- FIG. 8A variants of binding threads 83a and 84a are illustrated.
- FIG. 8C is another example of construction of the geo synthetic of the invention, in which all the wires or cords are arranged on the same guide line (designated wire guide bar), but with a positive double feed with a different flow rate. This solution is possible when the deviation or phase shift sought between the first part of the curve (zone A) and the second part of the curve (zone B) is relatively small.
- Threading the son or cords is then performed with, for example, the repetition of a type 81b wire, then a type 82b wire.
- Threading the son or cords is then performed with, for example, the repetition of a type 81b wire, then a type 82b wire.
- the choice of the nature of the son composing the geosynthetic in question is very precisely adapted to the specific conditions of the work and the site.
- It can be standard polyester or retracted type with high elongation curve), polyamide, polypropylene or high-strength polyethylene but elongation at break of the order of 20%.
- high-modulus wires 72, 72b, 82a, 82b arranged with supercharging or waving it is a question of using high-strength or high-modulus wires such as HT (high tenacity) polyester, aramid fibers, PVA (polyvinylacetate), glass, carbon, basalt, polyethylene HT (high tenacity), or fibers such as Vectran® (aromatic polyester), etc ...
- polypropylene may be combined in the position of the wires 71, 81a or 81b and an alkaline-insensitive high modulus fiber such as PVA for the wires 72, 72b, 82a or 82b.
- the binding son can be standard, and typically polyester or polyethylene Indeed, their low resistance allows a fuse effect in phase 1 (zone A) to allow passage to phase 2 (zone B, B ').
- the geotextile of the invention may also have a woven structure, and no longer knitted.
- Figures 9 and 10 show two embodiments implementing such a woven structure.
- wires 92 are then introduced which pass over several frames according to a predefined program and which therefore remain rectilinear for a certain distance in the form of "floats".
- Figures 10 illustrate another armor, in which we find exactly the same principle but with two sets of different son in addition to the basic taffeta 100, 101.
- the threads 101 of the base fabric intervene only when they are "undone"; they are based on the most efficient material in terms of mechanical properties and act on the second part (zone B) of the geosynthetic tensile curve.
- Figures 9B and 10B are schematic representations of armor for programming on looms.
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- 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)
Abstract
Description
Claims
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 true EP3230509A1 (fr) | 2017-10-18 |
EP3230509B1 EP3230509B1 (fr) | 2022-01-12 |
Family
ID=52589589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15816813.8A Active EP3230509B1 (fr) | 2014-12-11 | 2015-11-16 | Géosynthétique de renforcement de sol à comportement multi-module |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3230509B1 (fr) |
FR (1) | FR3029943B1 (fr) |
HU (1) | HUE057836T2 (fr) |
WO (1) | WO2016092167A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3639001A4 (fr) | 2017-06-16 | 2021-03-10 | Saint-Gobain ADFORS Canada, Ltd. | Textile de détection |
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)
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. |
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2014
- 2014-12-11 FR FR1462214A patent/FR3029943B1/fr active Active
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2015
- 2015-11-16 HU HUE15816813A patent/HUE057836T2/hu unknown
- 2015-11-16 WO PCT/FR2015/053077 patent/WO2016092167A1/fr active Application Filing
- 2015-11-16 EP EP15816813.8A patent/EP3230509B1/fr active Active
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
---|---|
FR3029943B1 (fr) | 2016-12-30 |
EP3230509B1 (fr) | 2022-01-12 |
HUE057836T2 (hu) | 2022-06-28 |
WO2016092167A1 (fr) | 2016-06-16 |
FR3029943A1 (fr) | 2016-06-17 |
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