DE29825236U1 - Geo-synthetic material for reinforcing soils subject to cracking - made with parallel reinforcing strands containing fibres with different tension modules and levels of breaking elongation - Google Patents
Geo-synthetic material for reinforcing soils subject to cracking - made with parallel reinforcing strands containing fibres with different tension modules and levels of breaking elongation Download PDFInfo
- Publication number
- DE29825236U1 DE29825236U1 DE29825236U DE29825236U DE29825236U1 DE 29825236 U1 DE29825236 U1 DE 29825236U1 DE 29825236 U DE29825236 U DE 29825236U DE 29825236 U DE29825236 U DE 29825236U DE 29825236 U1 DE29825236 U1 DE 29825236U1
- Authority
- DE
- Germany
- Prior art keywords
- geosynthetic material
- group
- threads
- reinforcing
- filaments
- 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.)
- Expired - Lifetime
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/004—Sealing liners
-
- 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
- D04B21/10—Open-work fabrics
- D04B21/12—Open-work fabrics characterised by thread material
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
-
- 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
Abstract
Description
Die Erfindung betrifft ein geosynthetisches Material für die Verstärkung bei Erdbauwerken.The The invention relates to a geosynthetic material for reinforcement in Earthworks.
Geosynthetische Materialien und insbesondere Geotextilien werden immer häufiger als Verstärkung bei der Konstruktion von Erdbauwerken für Straßen oder Schienen verwendet.geosynthetic Materials and especially geotextiles are becoming more common than reinforcement used in the construction of earthworks for roads or rails.
Einige geotechnische Schwierigkeiten können relativ leicht identifiziert und in angemessener und endgültiger Weise behandelt werden. Andere geotechnische Schwierigkeiten sind wesentlich schwieriger zu überwinden und zwingen den Ingenieur manchmal dazu, ein Risiko einzugehen. Dies kommt insbesondere dann vor, wenn der Boden unterirdische Höhlen natürlichen Ursprungs (Karsterscheinungen) oder menschlichen Ursprungs (Laufgräben, Mergelgruben) enthält, die nicht in einem Verzeichnis enthalten und schwierig einzukreisen sind.Some geotechnical difficulties can relatively easily identified and in an appropriate and definitive manner be treated. Other geotechnical difficulties are essential more difficult to overcome and sometimes force the engineer to take a risk. This occurs especially when the soil is underground caves natural Origin (karst phenomena) or of human origin (trenches, marl pits) contains which are not in a directory and difficult to circling are.
Manchmal ist es jedoch unvermeidlich, Erdbauwerke auf einem Boden der letztgenannten Art auszuführen, was das Risiko beinhaltet, daß es im Bereich der Infrastruktur zu einem zufälligen Auftreten von Erdzusammenbrüchen und -senkungen kommen kann, wobei dieses Risiko mit dem für die Bauwerke benötigten Serviceniveau nicht kompatibel ist.Sometimes However, it is inevitable earthworks on a floor of the latter Kind of execute what the risk is that it in the field of infrastructure to a random occurrence of earth collapses and -reductions can come, taking this risk with that for the buildings required Service level is incompatible.
Die technische Lösung involviert die Verwendung einer verstärkten Geotextilie des Typs "Fallschirm", die als Präventivmaßnahme angewendet wird. Die Eigenschaften dieser Geotextilie hängen ab von ihrer Position (ob an der Oberfläche oder in der Tiefe), von der Größe der zu behandelnden Erdsenkungen und von der an der Oberfläche maximal erlaubten Ablenkung (sowohl permanent als auch dynamisch) als Funktion der für die zur Reparatur eines Bauwerks benötigten Zeit. Dabei ist es auch notwendig, die Lebensdauer zu berücksichtigen, die die Verstärkung in Abhängigkeit des Verkehrs auf dem über das Bauwerk geführten Weg besitzt, nachdem eine Erdsenkung aufgetreten ist.The technical solution involves the use of a reinforced geotextile of the "parachute" type, which is used as a preventative measure. The properties of this geotextile depend on its position (whether on the surface or in depth), the size of the treating earth subsidence and maximum from the surface allowed distraction (both permanent and dynamic) as a function the for the time needed to repair a building. And that's it necessary to consider the service life, which the reinforcement in dependence of traffic on the over the Building guided Owns way after a subsidence has occurred.
Verschiedene Parameter sind bei der Definition des Elastizitätsmoduls der zu wählenden Geotextilie involviert.Various Parameters are the ones to choose in the definition of the modulus of elasticity Geotextile involved.
Das Ziel der Erfindung ist es, ein geosynthetisches Material anzugeben, das einen normalen Betrieb während der Dauer der Verwendung des Bauwerks erlaubt und welches eine Sicherheitslösung des Fallschirmtyps bietet, falls es zu einem Zusammenbruch des Bodens kommen sollte.The The aim of the invention is to provide a geosynthetic material, that a normal operation during allowed the duration of use of the building and which is a security solution of Parachute type provides, in case of collapse of the ground should come.
Die Erfindung bezieht sich deshalb auf ein geosynthetisches Material, welches wenigstens eine Lage paralleler verstärkender Fäden umfaßt.The Invention therefore relates to a geosynthetic material, which comprises at least one layer of parallel reinforcing threads.
Dieses geosynthetische Material ist dadurch gekennzeichnet, daß die verstärkenden Fäden in zwei Gruppen von Fäden vorliegen, nämlich einer ersten Gruppe, die Fäden mit einem großen Elastizitätsmodul und einem Dehnungsbruchlastwert nahe 5% umfaßt, und einer zweiten Gruppe, die Fäden mit einem Elastizitätsmodul unterhalb des Elastizitätsmoduls der Fäden der ersten Gruppe umfaßt und deren Dehnungsbruchlastwert wenigstens gleich 12% ist.This geosynthetic material is characterized in that the reinforcing Threads in two Groups of threads be present, namely a first group, the threads with a great modulus of elasticity and a strain breaking load value close to 5%, and a second group, The strings with a modulus of elasticity below the modulus of elasticity the threads the first group includes and whose elongation at break load value is at least equal to 12%.
Vorteilhaft bestehen die Fasern der Fäden der ersten Gruppe aus PVA (Polyvinylacetat), dessen Dehnungsbruchlastwert in der Größenordnung von 5% liegt. Es sei bemerkt, daß weitere Fasern verwendet werden können, wie z.B. Glasfasern oder Aramidfasern, deren maximaler Dehnungsbruchlastwert bei 2 oder 2,5 % liegt, was nicht groß genug für Erdsenkungszonen ist.Advantageous consist of the fibers of the threads of first group of PVA (polyvinyl acetate), whose strain fracture load value in the order of magnitude of 5%. It should be noted that other fibers are used can be such as. Glass fibers or aramid fibers whose maximum elongation at break load value at 2 or 2.5%, which is not big enough for subsidence zones.
Die Fasern der Fäden der zweiten Gruppe sind vorzugsweise aus Polyester oder Polypropylen hergestellt.The Fibers of the threads the second group are preferably made of polyester or polypropylene.
Falls es keine wesentliche Störung in dem Boden gibt, können alle Fäden der beiden Gruppen aktiv an der Absorption von Spannungen bis zu einem Deformationswert von 5% teilnehmen.If there is no significant disturbance in the ground, can all threads of the two groups active in the absorption of voltages up to participate in a deformation value of 5%.
Ab diesem Wert, der dem Beginn einer ernsthaften Störung entspricht, beginnen die Fäden der ersten Gruppe zu brechen und die Kräfte werden nach und nach ausschließlich von den Fäden der zweiten Gruppe aufgenommen, was zu einer größeren Deformation des geosynthetischen Materials nach Art eines Fallschirm führt. Da aber die Fäden der zweiten Gruppe einen Dehnungsbruchlastwert größer als 5% besitzen, können die Fäden das Bauwerk trotz des großen Grades der Bodenstörung tragen.From this value, which corresponds to the beginning of a serious disturbance, begins Threads of the first Group break and the forces are gradually becoming exclusive from the threads the second group, resulting in greater deformation of the geosynthetic Material in the manner of a parachute leads. But since the threads of the second group have a strain fracture load value greater than 5%, the Threads that Building despite the big one Degree of ground disturbance wear.
In der Praxis kann das geosynthetische Material gemäß der Erfindung vorteilhaft mit einem weiteren geosynthetischen Material kombiniert werden, wenn das Bauwerk ausgeführt wird, wobei das weitere geosynthetische Material mit Filamenten ausgestattet ist, die in der Lage sind, bei vorbestimmten Dehnungswerten zu brechen, z.B. bei 4 und bei 8%, wobei diese Filamente mit Alarmvorrichtungen verbunden sind und wobei das weitere geosynthetische Material auf dem Boden angeordnet und von dem erfindungsgemäßen geosynthetischen Material durch eine Erdschicht getrennt ist, die unter ihrem eigenen Gewicht ungefähr eine Deformation des zweiten geosynthetischen Materials von ungefähr 5% mitbringt, was dazu führt, daß eine der Alarmvorrichtungen aktiviert wird.In In practice, the geosynthetic material according to the invention may be advantageous be combined with another geosynthetic material, if the building executed being, being the other geosynthetic material with filaments equipped, which are capable of at predetermined elongation values to break, e.g. at 4 and at 8%, these filaments with alarms are connected and where the other geosynthetic material arranged on the ground and of the geosynthetic material according to the invention separated by a layer of earth that is under its own weight approximately which brings about a deformation of the second geosynthetic material of about 5% causes that one the alarm devices is activated.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden, rein beispielhaften und nicht-beschränkenden Beschreibung in Verbindung mit den Zeichnungen, in welchenFurther details and advantages of the invention will become apparent from the following, purely in by way of example and non-limiting description in conjunction with the drawings, in which
Falls der Dehnungswert unter 5% liegt, ist die Steigung der Kurve C steil. Bis zu einer Dehnung von 5% werden die Kräfte sowohl von den verstärkenden Fäden absorbiert, die einen hohen Elastizitätsmodul und einen Dehnungsbruchlastwert von 5% besitzen und die vorzugsweise aus PVA (Polyvinylacetat) hergestellt sind, als auch von den anderen verstärkenden Fäden, die einen deutlich kleineren Elastizitätsmodul und einen Dehnungsbruchlastwert über 12% und vorzugsweise gleich 18% besitzen, wobei diese anderen Fäden z.B. aus Polyester oder Polypropylen hergestellt sind.If the strain value is less than 5%, the slope of the curve C is steep. Up to an elongation of 5%, the forces are absorbed both by the reinforcing threads, which has a high modulus of elasticity and have a strain breaking load value of 5% and preferably made of PVA (polyvinyl acetate), as well as of the others reinforcing threads which has a much lower modulus of elasticity and a strain fracture load value over 12% and preferably equal to 18%, these other threads being e.g. made of polyester or polypropylene.
Wenn die Dehnung 5% übersteigt, brechen die PVA-Fäden und die Last wird dann nur von den Polyesterfäden absorbiert.If the elongation exceeds 5%, break the PVA threads and the load is then absorbed only by the polyester threads.
Wenn die Dehnung 5,5% erreicht, sind alle PVA-Fäden gebrochen und die Kräfte werden ausschließlich von den Polyesterfäden aufgenommen.If the elongation reaches 5.5%, all PVA threads are broken and the forces become exclusively from the polyester threads added.
Der Abschnitt OA der Kurve C entspricht der normalen Benutzung des geosynthetischen Materials bei einem Bauwerk. Der Abschnitt AB entspricht einer Alarmsituation und der Abschnitt BD entspricht der Verwendung des geosynthetischen Materials in dem Fallschirmmodus, z.B. im Falle des Zusammenbrechens von Erde unterhalb einer mit dem geosynthetischen Material gemäß der Erfindung ausgestatteten Struktur.Of the Section OA of curve C corresponds to the normal use of the geosynthetic Materials in a building. Section AB corresponds to an alarm situation and section BD corresponds to the use of the geosynthetic Material in the parachute mode, e.g. in the case of collapsing of soil beneath one with the geosynthetic material according to the invention equipped structure.
Die
Die
Fäden
In
den
Die
Oberhalb
der Oberfläche
Zwischen
dem geosynthetischen Material
Unter
dieser Bedingung trägt
das geosynthetische Material
Claims (4)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9710323 | 1997-08-13 | ||
FR9710323A FR2767344B1 (en) | 1997-08-13 | 1997-08-13 | GEOSYNTHETIC FOR DEVICE FOR REINFORCING SOILS AT RISK OF COLLAPSE |
DE98402015 | 1998-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29825236U1 true DE29825236U1 (en) | 2006-12-21 |
Family
ID=9510271
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29825236U Expired - Lifetime DE29825236U1 (en) | 1997-08-13 | 1998-08-07 | Geo-synthetic material for reinforcing soils subject to cracking - made with parallel reinforcing strands containing fibres with different tension modules and levels of breaking elongation |
DE69838697T Expired - Lifetime DE69838697T2 (en) | 1997-08-13 | 1998-08-07 | Geosynthetic reinforcing layer for settling soil |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69838697T Expired - Lifetime DE69838697T2 (en) | 1997-08-13 | 1998-08-07 | Geosynthetic reinforcing layer for settling soil |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0897035B1 (en) |
AT (1) | ATE378475T1 (en) |
CY (1) | CY1107155T1 (en) |
DE (2) | DE29825236U1 (en) |
DK (1) | DK0897035T3 (en) |
ES (1) | ES2297876T3 (en) |
FR (1) | FR2767344B1 (en) |
MY (1) | MY129898A (en) |
PT (1) | PT897035E (en) |
SG (1) | SG71141A1 (en) |
SI (1) | SI0897035T1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2907132B1 (en) * | 2006-10-17 | 2010-02-26 | Mdb Texinov Sa | COMPOSITE GEOTEXTILE FOR CIVIL ENGINEERING AND METHOD FOR MANUFACTURING THE SAME |
FR2932820B1 (en) * | 2008-06-23 | 2012-11-16 | Mdb Texinov Sa | FLOOR AND REINFORCING GRID WITH INTRODUCTION OF MINERAL FIBERS FOR WORKS OF CIVIL ENGINEERING. |
FR3029943B1 (en) | 2014-12-11 | 2016-12-30 | Texinov | MULTI-MODULATING BEAM REINFORCING GEOSYNTHETICS |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3823748A (en) * | 1972-02-14 | 1974-07-16 | Celanese Corp | Energy absorbent textile structure |
US4540311A (en) * | 1981-02-26 | 1985-09-10 | Burlington Industries, Inc. | Geotextile fabric construction |
EP0235853B1 (en) * | 1986-02-21 | 1990-07-04 | Akzo N.V. | Supporting fabric for bearing bulk material and a method of building a road embankment, a dam, a concrete structure or some other body formed of bulk material |
AU6853387A (en) * | 1986-09-05 | 1988-03-10 | Leucadia, Inc. | Subsurface drainage matting |
FR2730257B1 (en) * | 1995-02-06 | 1997-04-25 | Colas Sa | BITUMINOUS MEMBRANE FOR GEOTECHNICAL USE AND MANUFACTURING METHOD THEREOF |
US5795835A (en) * | 1995-08-28 | 1998-08-18 | The Tensar Corporation | Bonded composite knitted structural textiles |
-
1997
- 1997-08-13 FR FR9710323A patent/FR2767344B1/en not_active Expired - Fee Related
-
1998
- 1998-08-07 ES ES98402015T patent/ES2297876T3/en not_active Expired - Lifetime
- 1998-08-07 PT PT98402015T patent/PT897035E/en unknown
- 1998-08-07 DK DK98402015T patent/DK0897035T3/en active
- 1998-08-07 SI SI9830900T patent/SI0897035T1/en unknown
- 1998-08-07 AT AT98402015T patent/ATE378475T1/en active
- 1998-08-07 DE DE29825236U patent/DE29825236U1/en not_active Expired - Lifetime
- 1998-08-07 EP EP98402015A patent/EP0897035B1/en not_active Expired - Lifetime
- 1998-08-07 DE DE69838697T patent/DE69838697T2/en not_active Expired - Lifetime
- 1998-08-12 MY MYPI98003675A patent/MY129898A/en unknown
- 1998-08-12 SG SG1998002975A patent/SG71141A1/en unknown
-
2008
- 2008-01-28 CY CY20081100094T patent/CY1107155T1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE69838697T2 (en) | 2008-10-30 |
CY1107155T1 (en) | 2012-10-24 |
ATE378475T1 (en) | 2007-11-15 |
ES2297876T3 (en) | 2008-05-01 |
FR2767344A1 (en) | 1999-02-19 |
MY129898A (en) | 2007-05-30 |
EP0897035A1 (en) | 1999-02-17 |
SG71141A1 (en) | 2000-03-21 |
EP0897035B1 (en) | 2007-11-14 |
PT897035E (en) | 2008-02-04 |
SI0897035T1 (en) | 2008-06-30 |
DK0897035T3 (en) | 2008-03-03 |
FR2767344B1 (en) | 1999-11-05 |
DE69838697D1 (en) | 2007-12-27 |
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R071 | Expiry of right |