Classifications

• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02B—HYDRAULIC ENGINEERING
  • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
  • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
  • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor

Definitions

• German Patent Specification DD 148 797 A describes plastic webs laminated with nonwoven fabric for this purpose, which are first provided with their nonwoven side to the surfaces of the structures to be sealed by means of suitable adhesives, e.g. Two-component adhesive PUR-based, are glued overlapping, after which the overlapping areas of the plastic gaskets, which are not laminated with nonwoven, are welded.
• suitable adhesives e.g. Two-component adhesive PUR-based
• PUR-based Two-component adhesive PUR-based
• Object of the present invention was therefore to develop a method for relatively simple yet secure attachment laminated with geo-nonwovens plastic sealing sheets on the surfaces to be sealed of the structures, can be dispensed with the Andschreibzsstoff without distortions or corrugations of the glued membranes occur ,
• thermoplastic Geovliesstoff by means of an adhesive, preferably by means of a tile adhesive, and after complete curing of the adhesive with a thermoplastic geo-nonwoven fabric laminated plastic sealing sheets with the bonded geotextile web welded, wherein the welding of the two geotextiles takes place together.
• the welding of the overlapping areas of the laminated Geovliesstoff plastic sealing sheets takes place.
• a mineral sealing mat for example with a bentonite sealing mat
• Bentofix® commercially available in various embodiments under the protected brand Bentofix® and as described in DE 37 04 503 C2 are described.
• the plastic sealing strip used in the invention is preferably made of a thermoplastic material, in particular polyvinyl chloride P soft (PVC-P), high density polyethylene (PE-HD), low density polyethylene (PE-LD), PE-C, ECB or ENA.
• PV-P polyvinyl chloride P soft
• PE-HD high density polyethylene
• PE-LD low density polyethylene
• PE-C ECB
• ENA ENA
• plastic sealing strip used according to the invention can also consist of an elastomer, for example IIR, EPDM, CR, NBR or CSM.
• the plastic sealing strip used according to the invention is laminated on the later side of the bonded thermoplastic Geovliesstoffbahn side facing a thermoplastic Geovliesstoff für over which the bond with the glued Geovliesstoffbahn takes place, wherein the lamination preferably extends only to the overlap region of the plastic sealing sheets to a direct welding of the plastic sealing sheets to allow each other.
• the bentonite liner is preferably comprised of two geotextile layers and a bentonite layer therebetween, wherein the geotextile layers, at least one of which is a geotextile, are needled or sewn together to include the bentonite layer.
• the bentonite geomembrane can also consist of three geotextile layers with an additional layer of heavy material, all layers are needled together.
• the additional layer of heavy material consists of quartz sand and / or quartz flour.
• Such mats are not attached to vertical walls, but e.g. at channel bottoms and / or channel embankments.
• the welding of the Geovliesstoff laminated plastic sealing sheet with the previously glued to the surface to be sealed Geovliesstoffbahn is preferably carried out by methods in which one melts the surfaces to be welded with an open flame or hot gas and then compresses these surfaces melted.
• the welding of the plastic sealing sheets with each other by conventional methods, e.g. Hot wedge welding, which are known in the art.
• the procedure is either to weld the entire overlap region or to produce two parallel welds (double seams) in the overlap region to form an air test channel, the welds preferably forming wide weld strips.
• both the geotextile web and the plastic waterproofing membrane is carried out according to the procedures known in the art, both in the plane and on embankments laying, for example by means of traverse with excavator or winch or by means of self-propelled frame construction, in which the combination plastic sealing sheet inserted and then unrolled via chain, rope or gear drive.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Environmental & Geological Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Mechanical Engineering (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Laminated Bodies (AREA)
• Revetment (AREA)
• Lining Or Joining Of Plastics Or The Like (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=35262011

Family Applications (1)

Country Status (3)

Cited By (1)

Citations (7)

Family Cites Families (4)

• 2004
  • 2004-08-12 DE DE200410039368 patent/DE102004039368A1/de not_active Ceased
• 2005
  • 2005-08-06 EP EP05017177A patent/EP1626131A1/fr not_active Withdrawn
  • 2005-08-11 RU RU2005125594/03A patent/RU2005125594A/ru not_active Application Discontinuation

Patent Citations (8)

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