DE20217044U1 - Protection and strengthening cover consists of two synthetic-fiber fleece layers provided with foils consisting of flexible thermoplastic polyolefins with a high biaxial stretch capability - Google Patents
Protection and strengthening cover consists of two synthetic-fiber fleece layers provided with foils consisting of flexible thermoplastic polyolefins with a high biaxial stretch capabilityInfo
- Publication number
- DE20217044U1 DE20217044U1 DE20217044U DE20217044U DE20217044U1 DE 20217044 U1 DE20217044 U1 DE 20217044U1 DE 20217044 U DE20217044 U DE 20217044U DE 20217044 U DE20217044 U DE 20217044U DE 20217044 U1 DE20217044 U1 DE 20217044U1
- Authority
- DE
- Germany
- Prior art keywords
- fleece
- layer
- protective
- tunnel
- seal
- 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
- 229920002994 synthetic fiber Polymers 0.000 title claims abstract description 4
- 229920002397 thermoplastic olefin Polymers 0.000 title claims abstract 3
- 239000011888 foil Substances 0.000 title abstract description 4
- 239000012209 synthetic fiber Substances 0.000 title abstract description 3
- 238000005728 strengthening Methods 0.000 title abstract 2
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 12
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000009412 basement excavation Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000007888 film coating Substances 0.000 claims description 2
- 238000009501 film coating Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 claims 1
- 238000007596 consolidation process Methods 0.000 claims 1
- 239000004745 nonwoven fabric Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 claims 1
- 229920002647 polyamide Polymers 0.000 claims 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 57
- 239000004567 concrete Substances 0.000 description 26
- 238000010276 construction Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- 238000009415 formwork Methods 0.000 description 7
- 239000011241 protective layer Substances 0.000 description 7
- 239000012528 membrane Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- 206010040954 Skin wrinkling Diseases 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000004821 Contact adhesive Substances 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- 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
- D04H1/4326—Condensation or reaction polymers
- D04H1/4334—Polyamides
-
- 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
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- 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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/559—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 by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Schutzschicht aus zweilagigem Vlies mit innenliegenden SchweißflächenProtective layer made of two-layer fleece with internal welding surfaces
Die Erfindung betrifft eine Schutzschicht für Kunststoffdichtungsbahnen bestehend aus zwei Vlieslagen aus synthetischen Fasern, die jeweils auf einer Seite kraftschlüssig mit einer thermoplastischen Folienschicht verbunden sind. Eine der beiden Vlieslagen wird an der Ausbruchssicherungsschicht eines Tunnels oder an der Betonwandung eines Behälters befestigt. Die andere Vlieslage ist zusätzlich mit der Kunststoffabdichtungsschicht verbunden. Diese Vlieslage wird durch Erwärmen der einander zugewandten Schweißflächen aus thermoplastischen Folien mit der befestigten Vlieslage vollflächig oder streifenförmig verschweißt.The invention relates to a protective layer for plastic sealing membranes consisting of two fleece layers made of synthetic fibers, each of which is force-fitted on one side to a thermoplastic film layer. One of the two fleece layers is attached to the excavation protection layer of a tunnel or to the concrete wall of a container. The other fleece layer is additionally attached to the plastic sealing layer. This fleece layer is welded to the attached fleece layer over the entire surface or in strips by heating the welding surfaces made of thermoplastic films facing each other.
Stand der TechnikState of the art
Zum Schutz der Benutzer vor eindringendem Sickerwasser oder zum Schutz des Konstruktionsbetons vor aggressiven Bergwasser werden Tunnel mit ein- oder mehrlagigen Kunststoffdichtungsbahnen abgedichtet. Der Einbau erfolgt noch überwiegend von Hand, was zeitaufwändig und teuer ist. Die Befestigung der Dichtungsbahn an Kunststoffscheiben, sogenannten Rondellen, die mittels Befestigungsbolzen aus Stahl an der Ausbruchssicherungsschicht angebracht wurden, erfolgt durch Erwärmung beider Kunststoffflächen mittels Heißluftgebläse und anschließendem Zusammenpressen der zu verschweißenden Flächen bis zur Erkaltung der Kunststoffe.To protect users from seepage water or to protect the structural concrete from aggressive mountain water, tunnels are sealed with single or multi-layer plastic sealing sheets. Installation is still mainly done by hand, which is time-consuming and expensive. The sealing sheet is attached to plastic discs, so-called rondelles, which are attached to the excavation protection layer using steel fastening bolts, by heating both plastic surfaces using a hot air blower and then pressing the surfaces to be welded together until the plastics have cooled.
Das Verfahren ist fehler- und schadensanfällig. Durch Wasseraufnahme gedehnte Schutzvliese führen zu einer girlandenartigen Verlegung der Dichtungsbahn. Beim Betonieren der eigentlichen Tunnelröhre wird die Mehrlänge der Dichtung gefaltet. Damit entstehen nach kurzer Zeit Risse in der Tunneldichtung.The process is prone to errors and damage. Protective fleeces that have been stretched by water absorption lead to the sealing membrane being laid in a garland-like manner. When the actual tunnel tube is concreted, the extra length of the seal is folded. This causes cracks in the tunnel seal after a short time.
Die punktförmige, starre Befestigung kann zur Beschädigung der Dichtungsbahn führen, wenn sich die, an der Rondelle gedachte Sollbruchstelle nicht löst. Überhitzung der Schweißflächen durch Unachtsamkeit bei der Verlegung schädigt die Dichtungsbahn. Weiter hat die Dichtung einen direkten Kontakt zum Befestigungsbolzen.The point-like, rigid fastening can lead to damage to the sealing membrane if the intended breaking point on the washer does not come loose. Overheating of the welding surfaces due to carelessness during installation damages the sealing membrane. The seal also has direct contact with the fastening bolt.
. Um die Tunnelabdichtung künftig noch besser vor Beschädigungen beim Einbau zu schützen, verlangen neue Vorschriften der deutschen Straßenbauverwaltung und der Deutschen Bahn eine Schutzschicht von 1000 g/m2 Flächengewicht. An den Überlappungsstössen der einzelnen Vliesbahnen entstehen damit Versätze von 8- 10mm Höhe, die wiederum an der anschließend eingebrachten Kunststoffdichtungsbahn beim Einbringen des Betons zu schädlicher Faltenbildung nach Stauchung der Vliesschichten führen kann.
Mechanisierte Verlegeverfahren verwenden in neuerer Zeit sogen. Klettbänder oder -flächen, beziehungsweise auf die Betonschicht aufgesprühte Kleber, mit denen die mit einer Vliesschicht verbundene Tunnelabdichtung an der Ausbruchssicherungsschicht befestigt wird. Durch die Vliesschicht besteht eine Bewegungsmöglichkeit für die Dichtungsbahri. Das Problem der Überlappungsstösse und der durchhängenden Abdichtung ist damit aber nicht gelöst.In order to protect the tunnel seal even better against damage during installation in the future, new regulations from the German road construction authority and Deutsche Bahn require a protective layer with a surface weight of 1000 g/m 2. This creates offsets of 8-10 mm in height at the overlapping joints of the individual fleece sheets, which in turn can lead to damaging wrinkling in the plastic sealing sheet that is subsequently installed when the concrete is poured, after the fleece layers are compressed.
Mechanized installation methods have recently started using so-called Velcro strips or surfaces, or adhesives sprayed onto the concrete layer, with which the tunnel seal, which is connected to a fleece layer, is attached to the excavation protection layer. The fleece layer allows the sealing layer to move. However, this does not solve the problem of overlapping joints and sagging seals.
Behälter, in denen betonaggressive oder das Grundwasser gefährdende Flüssigkeiten gelagert oder behandelt werden, erhalten oft eine Auskleidung aus plattenartigen Kunstdichiungen, die durch rückwärtige Noppen kraftschlüssig mit dem Beton verbunden werden.
Die Platten werden bei Beginn der Schalarbeiten aufgestellt und untereinander dich, verschweiß;. Sie sind beim Einbau der Bewehrung und des Betons dem geringe.'·? SachverstandContainers in which liquids that are aggressive to concrete or hazardous to groundwater are stored or treated are often lined with plate-like synthetic seals that are firmly connected to the concrete by studs on the back.
The panels are erected at the beginning of the formwork work and welded together. They are exposed to the slightest pressure during the installation of the reinforcement and the concrete.'·? Expertise
der mit Abdichtungsarbeiten nicht befassten Betonarbeiter ausgesetzt. Ihr Einbau erschwert auch die Herstellung der Betonschalung.of concrete workers not involved in waterproofing work. Their installation also complicates the manufacture of the concrete formwork.
Nachteilig ist an diesen Systemen die technisch bedingte Steifigkeit der Platten, die wiederum eine geringe Dehnung bedingt. Beton erzeugt bei der chemischen Reaktion des Abbindens Wärme, die wegen der unterschiedlichen Ausdehnungskoeffizienten von Kunststoff und Beton zu teilweise dauerhaften Verformungen der sichtbaren Oberfläche führen. Die im Abbindeprozeß auftretenden Verformungen lassen einen wassergängigen Spalt zwischen Beton und Kunststoffplatte entstehen.The disadvantage of these systems is the technically determined rigidity of the panels, which in turn results in a low degree of expansion. Concrete generates heat during the chemical reaction of setting, which leads to partially permanent deformation of the visible surface due to the different expansion coefficients of plastic and concrete. The deformations that occur during the setting process create a gap between the concrete and the plastic panel that is permeable to water.
Später entstehende Risse in der Betonwandung können 'manchmal durch die geringe Dehnfähigkeit nicht überbrückt werden und führen zu einem Riß der Dichtungsplatte. Durch den fehlenden Kontakt zwischen Kunststoffplatte und Beton kann sich die schädliche Flüssigkeit flächig hinter der Dichtung ausbreiten.Cracks that appear later in the concrete wall sometimes cannot be bridged due to the low elasticity and lead to a crack in the sealing plate. Due to the lack of contact between the plastic plate and the concrete, the harmful liquid can spread across the surface behind the seal.
Weiter gestaltet sich die Ausbildung von Konstruktions- und Arbeitsfugen im Beton schwierig.Furthermore, the formation of construction and working joints in concrete is difficult.
AufgabeTask
Die Erfindung hat daher zum Ziel, die bekannten Nachteile des Systems aus Schutzvlies und Abdichtung im Tunnelbau zu beseitigen und die mechanisierte, großflächige Verlegung durch teilautomatisierte Arbeitsschritte zu ermöglichen. Damit verringern sich die bisher vorhandenen Fehlermöglichkeiten, während gleichzeitig ein deutlicher Fortschritt in der Sicherheit der Abdichtung möglich ist.The invention therefore aims to eliminate the known disadvantages of the system of protective fleece and sealing in tunnel construction and to enable mechanized, large-scale installation through partially automated work steps. This reduces the previously existing possibilities for error, while at the same time making significant progress in the safety of the sealing possible.
Bei der Abdichtung von Behältern werden alle bekannten Nachteile beseitigt. Durch die Unterteilung der Funktionen kraftschlüssige Verbindung zum Beton und Abdichtung des Beckens auf zwei Arbeitsschritte kann die Herstellung der Schalung vereinfacht, die Abdichtung vor Beschädigung beim Betonieren geschützt und die Probleme mit der Abbindetemperatur vermieden werden. Die hohe Flexibilität der Dichtung durch die Zwischenlage aus Vlies verringert die Möglichkeit zu Rissen in der Dichtung nach Bewegungen der Betonkonstruktion erheblich.When sealing containers, all known disadvantages are eliminated. By dividing the functions of force-fit connection to the concrete and sealing the basin into two work steps, the manufacture of the formwork can be simplified, the seal can be protected from damage during concreting and problems with the setting temperature can be avoided. The high flexibility of the seal due to the intermediate layer of fleece significantly reduces the possibility of cracks in the seal after movements of the concrete structure.
Eine geeignete Ausrüstung der Vlieslagen mit einem Quellmittel vermeidet die Hinterläufigkeit der Dichtung nach Schäden.A suitable treatment of the fleece layers with a swelling agent prevents the seal from leaking after damage.
Darstellung der ErfindungDescription of the invention
Das geforderte Flächengewicht für Schutzschichten im Tunnelbau von 1000 g/m2 wird durch Unterteilung in zwei Vlieslagen von jeweils 400 - 600 g/m2 erreicht. Das geringere Gewicht bringt eine geringere Dicke, welche die Höhe des Versatzes reduziert. Diese kann weiter reduziert werden, in dem man die seitlichen Kanten der Vlieslage während der Herstellung erwärmt und mit Anpreßwalzen verdichtet.The required weight per unit area of 1000 g/m 2 for protective layers in tunnel construction is achieved by dividing the fleece into two layers of 400 - 600 g/m 2 each. The lower weight results in a lower thickness, which reduces the amount of offset. This can be further reduced by heating the side edges of the fleece layer during production and compacting them with pressure rollers.
Auf beide Vlieslagen wird einseitig eine 0.25 -1,0 mm dicke flexible thermoplastische Kunststofffolie aus Polyethylen mit hohem biaxialen Dehnungsverhalten durch Extrusion aufgebracht.A 0.25 - 1.0 mm thick flexible thermoplastic film made of polyethylene with high biaxial stretching behavior is applied to one side of both nonwoven layers by extrusion.
Alternativ kann das fertige Vlies mit pulverförmigen Polyethylen bestreut werden. Durch anschließende Wärmebestrahlung schmilzt dieses auf. Anschließend wird das geschmolzene Pulver in die Oberfläche eingewalzt.Alternatively, the finished fleece can be sprinkled with powdered polyethylene. This melts when exposed to heat. The melted powder is then rolled into the surface.
Vli*jn:it initoVli*jn:it inito
Weniger geeignet ist die nachträgliche Verbindung eines fertigen Vlieses mit einer fertigen Folie, wobei die Verbindung durch Kontaktkleber oder durch Zugabe von Schmelzklebern und Wärme erfolgt.Less suitable is the subsequent connection of a finished fleece with a finished film, whereby the connection is made by contact adhesive or by adding hot melt adhesives and heat.
'&ogr;1 '&ogr; 1
Auf eine der beiden Vlieslagen wird noch die zur Tunnel- oder Behälterabdichtung erforderliche Kunststoffdichtungsbahn aus flexiblen Polyolefinen oder dem chemikalienresistenten PE-HD aufgebracht.The plastic sealing sheet made of flexible polyolefins or chemical-resistant PE-HD required for tunnel or container sealing is applied to one of the two fleece layers.
Zur Behälterabdichtung besitzt die zweite Vlieslage auf der Rückseite eine mit Monofilschlingen versehene Gewebelage gemäß dem Gebrauchsmuster Nr. 200 15 255.6To seal the container, the second fleece layer has a fabric layer with monofilament loops on the back in accordance with utility model no. 200 15 255.6
Im Tunnelbau wird die erste Vlieslage mit der offenen Seite zur Ausbruchssicherungsschicht mittels Verlegevorrichtung am Tunnelprofil entlang abgerollt. Durch die aufgebrachte Folienschicht ist die Oberfläche des Vlieses stabilisiert, sodaß die zur Befestigung erforderlichen Bolzen automatisch in einem festen Raster eingeschossen werden können. Nur bei örtlichen Tiefpunkten werden zusätzliche Bolzen von Hand eingebracht. Die verfestigten Bahnenränder können durch Heißluft erwärmt und mittels Andrückrollen verschweißt werden.In tunnel construction, the first fleece layer is rolled out along the tunnel profile with the open side facing the excavation protection layer using a laying device. The surface of the fleece is stabilized by the applied film layer so that the bolts required for fastening can be automatically shot in a fixed grid. Additional bolts are only inserted by hand at local low points. The solidified edges of the sheet can be heated with hot air and welded using pressure rollers.
Die Folienbeschichtung des Vlieses verhindert ein Abtropfen von bergseitigen Sickerwasser in den Tunnel. Die aus der Durchnässung der Vlieslage resultierende Überdehnung bisheriger Vliese wird durch die Fixierung der Oberfläche vermieden. Die Gefahr einer Entzündung der Vlieslage während der Abdichtungsarbeiten ist durch die geschlossene Folienoberfläche stark verringert. Da die Befestigungsbolzen nur für die erste Vlieslage verwendet werden, ist kein Kontakt mehr zur Dichtungsbahn möglich.The film coating of the fleece prevents seepage water from the mountain side from dripping into the tunnel. The overstretching of previous fleeces resulting from the soaking of the fleece layer is avoided by fixing the surface. The risk of the fleece layer catching fire during sealing work is greatly reduced by the closed film surface. Since the fastening bolts are only used for the first fleece layer, contact with the sealing membrane is no longer possible.
Im zweiten Arbeitsgang wird die mit der Tunnelabdichtung verbundene Vlieslage entlang des Tunnelprofils abgerollt. Vor der abzurollenden Vlieslage sind Heißluftgebläse an der Verlegevorrichtung angebracht, welche die beiden, einander zugewandten, thermoplastischen Folienoberflächen erwärmen. Tunnelinnenseitig laufen Anpreßrollen, welche die zweite Schicht aus Vlies und Abdichtung an das Tunnelprofil anpressen und damit zu einer vollflächigen oder streifenförmigen Verschweißung der beiden Vlieslagen führen.In the second step, the fleece layer connected to the tunnel seal is unrolled along the tunnel profile. Hot air blowers are attached to the laying device in front of the fleece layer to be unrolled, which heat the two thermoplastic film surfaces facing each other. Pressure rollers run on the inside of the tunnel, which press the second layer of fleece and seal onto the tunnel profile, thus leading to a full-surface or strip-shaped welding of the two fleece layers.
In einer vorteilhaften Weiterentwicklung sind die Fasern des dichtungsseitigen Vlieslage oder beider Vlieslagen mit einer bei Wasserzutritt aufquellenden Chemikalie umhüllt. Damit erhält der Tunnel eine mehrschichtige und damit hochwertigere Tunnelabdichtung, ähnlich der Ausführung nach DE 195 21 350.5.In an advantageous further development, the fibers of the fleece layer on the sealing side or both fleece layers are coated with a chemical that swells when water comes into contact. This gives the tunnel a multi-layered and therefore higher quality tunnel seal, similar to the design according to DE 195 21 350.5.
Durch die ebenflächige Verlegung des Abdichtungssystems mit der höheren inneren Steifigkeit ist die Gefahr von Faltenbildung beim Betonieren nahezu ausgeschlossen.
Die Höhe der Überlappungsstösse ist auf ein unschädliches Maß verringert. Dies wird auch noch durch eine versetzte Verlegung zwischen erster und zweiter Vlieslage erreicht, womit gleichzeitig immer mindestens eine Schutzschicht mit 400 g/m2 zwischen Ausbaichsicherungsschicht und Tunneldichtung vorhanden ist.Due to the flat installation of the sealing system with its higher internal rigidity, the risk of wrinkling during concreting is almost eliminated.
The height of the overlap joints is reduced to a harmless level. This is also achieved by staggered laying between the first and second fleece layers, which means that at least one protective layer of 400 g/m 2 is always present between the sag protection layer and the tunnel seal.
Im Behälterbau wird das mit einer Krallschicht versehene Vlies mit der Folienseite zur dichtungsseitigen Schalung verlegt und an dieser mit Klebebändern befestigt. Die zur Sicherung der beiden Schalungshälften erforderlichen Abstands- und Spanneisen können durch die erste Vlieslage hindurch eingebracht werden, da diese Vlieslage keine dichtende, sondern nur die Funktion einer kraftschlüssigen Verbindung zum Beton übernimmt. Sie ist auch weitgehend unempfindlich gegen die beim Einbringen der Bewehrung auftretenden Beanspruchungen. Geringfügige Beschädigungen beeinträchtigen nicht die spätere Wirksamkeit des Gesamtsystems In tank construction, the fleece with a claw layer is laid with the foil side facing the formwork on the sealing side and attached to it with adhesive tape. The spacers and clamps required to secure the two halves of the formwork can be inserted through the first fleece layer, as this fleece layer does not have a sealing function, but only the function of a force-fit connection to the concrete. It is also largely insensitive to the stresses that occur when the reinforcement is inserted. Minor damage does not affect the subsequent effectiveness of the entire system.
It ;&mgr;.&Ngr;*&ngr;&ngr;&ngr;&Pgr;!1&idigr;&iacgr;!&idiagr;&aacgr;&eeacgr;.&ngr;&udigr;&ogr;^&igr;5&igr;&iacgr;&idiagr; miTiiilieg'fiJeJi Scliweißllüchin &idigr; ·! ··· · · · ······ ···It ;µ.&Ngr;*&ngr;&ngr;&ngr;&Pgr;!1&idigr;&iacgr;!&idiagr;&aacgr;&eeacgr;.&ngr;&udigr;&ogr;^&igr;5&igr;&iacgr;&idiagr; miTiiilieg'fiJeJi Scliweißllüchin &idigr; ·! ··· · · · ······ ···
Beim Einbringen des Betons werden die Schlingen in die Betonoberfläche kraftschlüssig eingebunden. Luftblasen oder Wassertropfen, die sich üblicherweise an der Schalungsfläche festsetzen und dann zu einer porigen Oberfläche fuhren, können schadlos in die Gewebe- und Vliesschicht entweichen. Durch die hohe Flexibilität der Vlieslage können durch die Abbindewärme keine Verformungen entstehen. Nach dem Entfernen der Schalung verhindert die Vlieslage ein zu schnelles, schädliches Austrocken des Betons.When the concrete is poured, the loops are firmly embedded in the concrete surface. Air bubbles or water drops, which usually adhere to the formwork surface and then lead to a porous surface, can escape into the fabric and fleece layer without causing any damage. The high flexibility of the fleece layer means that no deformation can occur due to the setting heat. After the formwork is removed, the fleece layer prevents the concrete from drying out too quickly and damagingly.
Nach dem Erhärten des Betons und dem Abschluß aller für die Dichtung gefährlichen Arbeiten wird die Folie an der Oberfläche der Vlieslage gesäubert. Die zweite, mit der Abdichtung verbundene Vlieslage wird ausgerollt. Die einander zugewandten, thermoplastischen Folienoberflächen werden durch Heißluftgebläse erwärmt und durch an der Behälterinnenseite laufende Anpreßrollen, welche die zweite Schicht aus Vlies und Abdichtung an die Behälterwandung anpressen und damit zu einer vollflächigen oder streifenförmigen Verschweißung der beiden Vlieslage fuhren.After the concrete has hardened and all work that could be dangerous for the seal has been completed, the film on the surface of the fleece layer is cleaned. The second fleece layer connected to the seal is rolled out. The thermoplastic film surfaces facing each other are heated by hot air blowers and by pressure rollers running on the inside of the container, which press the second layer of fleece and seal onto the container wall and thus lead to a full-surface or strip-shaped welding of the two fleece layers.
Durch die beiden Vlieslagen ist eine ausreichende Bewegungsmöglichkeit zwischen Abdichtung und Betonwandung gegeben. Damit ist die Gefahr der Rissebildung gering. Konstruktions- und Arbeitsfugen können einfach überbrückt werden. Bei einer Ausrüstung des oder der Vliese mit Quellmittel ist eine zusätzliche Abdichtung eingebaut, die eine Hinterläufigkeit bei Beschädigung der Kunststoffabdichtung verhindert.The two fleece layers allow sufficient movement between the waterproofing and the concrete wall. This means that the risk of cracks forming is low. Construction and working joints can be easily bridged. If the fleece(s) are treated with a swelling agent, an additional seal is built in that prevents water from leaking behind if the plastic waterproofing is damaged.
Beschreibung der ZeichnungenDescription of the drawings
Fig. 1 zeigt eine erfindungsgemäße Ausführung für die Anwendung im Tunnelbau. An der üblicherweise aus Spritzbeton hergestellten Sicherungsschicht (1) der Ausbruchsfläche ist die Vliesschicht (3) mit dem bevorzugten Flächengewicht von 600 g/m2 und einer auf der abgewandten Seite aufgebrachten thermoplastischen Folie (5) mit einem Befestigungsbolzen (4) befestigt. Noch nicht mit der ersten Vlieslage verbunden, befindet sich links die zweite Hälfte der Schutzschicht aus Vlies (6) mit dem bevorzugten Flächengewicht von 400 g/m2, die auf der einen Seite mit der zum späteren Verschweissen erforderlichen thermoplastischen Folie (5) und auf der anderen Seite mit der Tunnelabdichtung (7) verbunden ist. Die Tunneldichtung besteht aus flexiblen Polyolefinen. Die Fasern der Vliesschicht (6) sind mit einer bei Wasserzutritt aufquellenden Chemikalie umhüllt.Fig. 1 shows an embodiment according to the invention for use in tunnel construction. The fleece layer (3) with the preferred basis weight of 600 g/m 2 and a thermoplastic film (5) applied to the opposite side are fastened with a fastening bolt (4) to the securing layer (1) of the excavation area, which is usually made of shotcrete. Not yet connected to the first fleece layer, on the left is the second half of the protective layer made of fleece (6) with the preferred basis weight of 400 g/m 2 , which is connected on one side to the thermoplastic film (5) required for later welding and on the other side to the tunnel seal (7). The tunnel seal consists of flexible polyolefins. The fibers of the fleece layer (6) are coated with a chemical that swells when water comes into contact with it.
Fig. 2 zeigt die Ausführung für die Auskleidung von Becken und Wannen in Betonbauwerken. An der beckenseitigen Fläche der Betonwand (2) ist eine kraftschlüssig mit der Vliesschicht (3) verbundene Gewebebahn (8), die einseitig mit fest in die Gewebestruktur eingearbeiteten Schlingen (9) von 3-5 mm Höhe versehen ist, durch diese dauerhaft mit dem Beton der Wand verbunden.Fig. 2 shows the design for lining pools and tubs in concrete structures. On the pool-side surface of the concrete wall (2), a fabric strip (8) is firmly connected to the fleece layer (3), which is provided on one side with loops (9) of 3-5 mm in height firmly incorporated into the fabric structure, and is permanently connected to the concrete of the wall by this.
Noch nicht mit der ersten Vlieslage verbunden, befindet sich links die zweite Hälfte der Schutzschicht aus Vlies (6) mit dem bevorzugten Flächengewicht von 400 g/m2, die auf der einen Seite mit der zum späteren Verschweissen erforderlichen thermoplastischen Folie (5) und auf der anderen Seite mit der Beckendichtung (10) verbunden ist. Die Beckendichtung besteht aus chemisch resistenten PE-HD. Die Fasern der Vliesschicht (6) sind mit einer bei Wasserzutritt aufquellenden Chemikalie umhüllt.Not yet connected to the first fleece layer, the second half of the protective layer made of fleece (6) with the preferred basis weight of 400 g/m 2 is on the left, which is connected on one side to the thermoplastic film (5) required for later welding and on the other side to the pool seal (10). The pool seal is made of chemically resistant PE-HD. The fibers of the fleece layer (6) are coated with a chemical that swells when exposed to water.
!ScljiiSzsefiiclit itus'guvil.igigcnijVlicftJnit ingiiili^iiJlL-Ji .^chf'i-jJMlächSn · *!ScljiiSzsefiiclit itus'guvil.igigcnijVlicftJnit ingiiili^iiJlL-Ji .^chf'i-jJMlächSn · *
Claims (6)
Eine der Vliesschichten ist auf der anderen Seite mit einer zur Abdichtung eines Tunnels, eines Behälters oder eines Beckens notwendigen Kunststoffabdichtung von 1,5-4 mm Dicke dauerhaft verbunden.
Nach Befestung der ersten Vliesschicht am Bauwerk oder der Ausbruchssicherungsschicht des Tunnels werden die einander zugewandten Oberflächen der Vliesschichten aus thermoplastischen Folien mittels Heißluftgeräte erwärmt und streifenförmig oder vollflächig durch den Druck von Anpreßrollen verschweißt. 1. Protective and fastening layer consisting of two nonwoven layers made of synthetic fibres, each with a basis weight of 400-600 g/m 2 , which are produced by needling or consolidation with water jets and are force-fitted on one side to a 0.25-1.0 mm thick film made of flexible, thermoplastic polyolefins with high biaxial stretchability.
One of the fleece layers is permanently connected on the other side to a plastic seal of 1.5-4 mm thickness, which is necessary for sealing a tunnel, a container or a basin.
After the first fleece layer has been attached to the structure or the tunnel's excavation protection layer, the facing surfaces of the fleece layers made of thermoplastic films are heated using hot air devices and welded in strips or over the entire surface by the pressure of pressure rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20217044U DE20217044U1 (en) | 2002-11-05 | 2002-11-05 | Protection and strengthening cover consists of two synthetic-fiber fleece layers provided with foils consisting of flexible thermoplastic polyolefins with a high biaxial stretch capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20217044U DE20217044U1 (en) | 2002-11-05 | 2002-11-05 | Protection and strengthening cover consists of two synthetic-fiber fleece layers provided with foils consisting of flexible thermoplastic polyolefins with a high biaxial stretch capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20217044U1 true DE20217044U1 (en) | 2003-06-26 |
Family
ID=7976641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20217044U Expired - Lifetime DE20217044U1 (en) | 2002-11-05 | 2002-11-05 | Protection and strengthening cover consists of two synthetic-fiber fleece layers provided with foils consisting of flexible thermoplastic polyolefins with a high biaxial stretch capability |
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| Country | Link |
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| DE (1) | DE20217044U1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005019680A1 (en) * | 2005-04-26 | 2006-11-02 | Ewald Dörken Ag | Flexible, planar web-shaped constructional sealing material used as a masonry wall sealant and/or as a horizontal damp course comprises a spacer level arranged between water-tight sealing layers |
| EP1950375A2 (en) | 2005-07-09 | 2008-07-30 | Skumtech AS | Construction of superstructures and infrastructures |
| EP1978207A2 (en) | 2007-04-02 | 2008-10-08 | Skumtech AS | Fire protection for structures |
| DE102008014757A1 (en) | 2008-02-08 | 2009-08-13 | Skumtech As | Tunnel extension for use between tunnels at stable rock mass and unstable rock mass, has heat insulation made of plastic foam, and arranged on seal at tunnel side, where heat insulation and seal are formed together |
| DE102008010657A1 (en) | 2008-02-22 | 2009-09-03 | Skumtech As | Construction for high and civil engineering, particularly tunnel lining or construction of tunnel in stable Mountain, has sealing in form of foil, where foil is fixed to mountain or to mountain side construction |
| DE102008046055A1 (en) | 2008-09-08 | 2010-03-11 | Skumtech As | Tunnel lining for use in mountain for e.g. motor vehicle, has heat insulation arranged at seal at inner side of tunnel, where sprayed concrete return layer is partially held with screw i.e. hexagonal screw, in heat insulation |
| WO2010054781A1 (en) | 2008-11-15 | 2010-05-20 | Meese Spanntechnik Gmbh | Round plate with claw fastening |
| DE102008057560A1 (en) | 2008-11-15 | 2010-05-27 | Meese Spanntechnik Gmbh | Mounting arrangement for mounting film for sealing purpose on firm cladding in civil engineering, has round towers mounted by nails, where film is attached to round towers |
| DE102011120942A1 (en) | 2011-09-26 | 2013-03-28 | Skumtech As | Tunnel support system for use in stable mountains, has segment-wise or element-wise thermal insulation unit that is made of polyethylene or polypropylene and is arranged at tunnel-sided sealing |
| DE102012012522A1 (en) | 2011-11-16 | 2013-05-16 | Skumtech As | Expansion in civil engineering |
| US8535786B2 (en) | 2006-08-18 | 2013-09-17 | Ewald Dorken Ag | Web and adhesive strip |
| DE102013100697A1 (en) * | 2012-12-20 | 2014-06-26 | Bnp Brinkmann Gmbh & Co. Kommanditgesellschaft | Preparing waterproofing membrane which are placed on one another in overlapping manner, and welded together in overlapping region, or textile polymeric waterproofing membrane made of several plastic layers, having e.g. outer fleece layers |
| US8808481B2 (en) | 2005-07-25 | 2014-08-19 | Ewald Dorken Ag | Method for the production of a web |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19521350A1 (en) | 1995-06-12 | 1996-12-19 | Niedlich Thorsten | Multilayer seal for tunnels etc. with plastics sealing webs |
| DE20015255U1 (en) | 2000-09-01 | 2000-12-14 | GTBS GmbH, 81825 München | Geotextile sealing and protective mat as well as sealing membrane and fleece layer that can be used here |
| DE19804875C2 (en) | 1998-02-09 | 2002-01-17 | Peter Wirz | Self-adhesive material web |
-
2002
- 2002-11-05 DE DE20217044U patent/DE20217044U1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19521350A1 (en) | 1995-06-12 | 1996-12-19 | Niedlich Thorsten | Multilayer seal for tunnels etc. with plastics sealing webs |
| DE19804875C2 (en) | 1998-02-09 | 2002-01-17 | Peter Wirz | Self-adhesive material web |
| DE20015255U1 (en) | 2000-09-01 | 2000-12-14 | GTBS GmbH, 81825 München | Geotextile sealing and protective mat as well as sealing membrane and fleece layer that can be used here |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005019680A1 (en) * | 2005-04-26 | 2006-11-02 | Ewald Dörken Ag | Flexible, planar web-shaped constructional sealing material used as a masonry wall sealant and/or as a horizontal damp course comprises a spacer level arranged between water-tight sealing layers |
| EP2420648A2 (en) | 2005-07-09 | 2012-02-22 | Skumtech AS | Building and civil engineering support |
| EP1950375A2 (en) | 2005-07-09 | 2008-07-30 | Skumtech AS | Construction of superstructures and infrastructures |
| EP2837768A2 (en) | 2005-07-09 | 2015-02-18 | Skumtech AS | Building and civil engineering structure |
| US8808481B2 (en) | 2005-07-25 | 2014-08-19 | Ewald Dorken Ag | Method for the production of a web |
| US8535786B2 (en) | 2006-08-18 | 2013-09-17 | Ewald Dorken Ag | Web and adhesive strip |
| EP1978207A2 (en) | 2007-04-02 | 2008-10-08 | Skumtech AS | Fire protection for structures |
| DE102008012084A1 (en) | 2007-04-02 | 2008-10-09 | Skumtech As | Fire protection for buildings, particularly for underground areas such as tunnels and lugs in fixed rock mass, has sealing against water, particularly in form of foil, and has anchors |
| DE102008014757A1 (en) | 2008-02-08 | 2009-08-13 | Skumtech As | Tunnel extension for use between tunnels at stable rock mass and unstable rock mass, has heat insulation made of plastic foam, and arranged on seal at tunnel side, where heat insulation and seal are formed together |
| DE102008010657A1 (en) | 2008-02-22 | 2009-09-03 | Skumtech As | Construction for high and civil engineering, particularly tunnel lining or construction of tunnel in stable Mountain, has sealing in form of foil, where foil is fixed to mountain or to mountain side construction |
| DE102008046055A1 (en) | 2008-09-08 | 2010-03-11 | Skumtech As | Tunnel lining for use in mountain for e.g. motor vehicle, has heat insulation arranged at seal at inner side of tunnel, where sprayed concrete return layer is partially held with screw i.e. hexagonal screw, in heat insulation |
| DE102008057558B4 (en) * | 2008-11-15 | 2011-03-03 | Meese Spanntechnik Gmbh | Mounting arrangement with a rondelle with claw attachment |
| DE102008057560A1 (en) | 2008-11-15 | 2010-05-27 | Meese Spanntechnik Gmbh | Mounting arrangement for mounting film for sealing purpose on firm cladding in civil engineering, has round towers mounted by nails, where film is attached to round towers |
| DE102008057558A1 (en) | 2008-11-15 | 2010-05-20 | Meese Spanntechnik Gmbh | Rondelle with claw attachment |
| WO2010054781A1 (en) | 2008-11-15 | 2010-05-20 | Meese Spanntechnik Gmbh | Round plate with claw fastening |
| DE102011120942A1 (en) | 2011-09-26 | 2013-03-28 | Skumtech As | Tunnel support system for use in stable mountains, has segment-wise or element-wise thermal insulation unit that is made of polyethylene or polypropylene and is arranged at tunnel-sided sealing |
| DE102012012522A1 (en) | 2011-11-16 | 2013-05-16 | Skumtech As | Expansion in civil engineering |
| EP2594736A1 (en) | 2011-11-16 | 2013-05-22 | Skumtech AS | Building and civil engineering structure |
| DE102013100697A1 (en) * | 2012-12-20 | 2014-06-26 | Bnp Brinkmann Gmbh & Co. Kommanditgesellschaft | Preparing waterproofing membrane which are placed on one another in overlapping manner, and welded together in overlapping region, or textile polymeric waterproofing membrane made of several plastic layers, having e.g. outer fleece layers |
| DE102013100697B4 (en) * | 2012-12-20 | 2016-09-08 | Bnp Brinkmann Gmbh & Co. Kommanditgesellschaft | Process for the firm welding of overlapped textile polymer sealing sheets (TPD) and textile polymer sealing sheet |
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