초록 ▼

The invention relates to a seal arrangement consisting of two abutting structures of concrete, steel, reinforced concrete, cast iron or other materials and a sealing section of elastomeric material which bridges and seals the gap between the two structures, in which the structures are especially seg

The invention relates to a seal arrangement consisting of two abutting structures of concrete, steel, reinforced concrete, cast iron or other materials and a sealing section of elastomeric material which bridges and seals the gap between the two structures, in which the structures are especially segments assembled to form a tubular tunnel with the formation of transverse and longitudinal seams, where each segment preferably has at least one peripheral recess covering all the mating sides of the segments and there is in each recess a stranded sealing section which especially has strand-shaped grooves on the base side of the sealing section and/or strand-shaped channels, forming a sealing frame with corners, and the back of the sealing section has at least one strand-shaped groove to accept an emergency seal. When the segments are moved in the direction of the arrow, giving rise to gaps, the emergency seal, consisting especially of a water-activatable sealing material, can expand as a result of a swelling process with an increase in volume.

대표청구항 ▼

[ We claim:] [1.] Seal arrangement comprisingtwo abutting structural parts made of a material selected from the group consisting of concrete, steel, reinforced concrete, and cast iron, and a sealing section made of elastomeric material for sealing and bridging a gap between the two structural parts;

[ We claim:] [1.] Seal arrangement comprisingtwo abutting structural parts made of a material selected from the group consisting of concrete, steel, reinforced concrete, and cast iron, and a sealing section made of elastomeric material for sealing and bridging a gap between the two structural parts;said structural parts being segments assembled to form a tubular tunnel with a formation of transverse joints and longitudinal joints, each segment having a mating side and being provided on the mating side with at least one peripheral recess covering all mating sides of the segment;said sealing section extending in the form of a strand being present in each recess, said sealing section being provided with fluted grooves extending in a form of strands, said fluted grooves being located on a base side of the sealing section; and with channels extending in the form of strands and forming a sealing frame with frame corners;said sealing section having a back, said back having at least one groove extending in the form of a strand, said groove receiving an emergency seal, which is a water-activatable sealing material; andsaid groove having flanks, and the flanks of the groove being curved, said flanks changing into a bottom of the groove in a curved way, forming a groove with a substantially circular cross-sectional shape; and the groove having an approximately funnel shaped opening.