EP 0531583 A1 19930317 - Method for inspecting and repairing a foil for protecting the ground against contamination in addition to a method for examining the ground.
Title (en)
Method for inspecting and repairing a foil for protecting the ground against contamination in addition to a method for examining the ground.
Title (de)
Verfahren zum Kontrollieren und Reparieren einer Folie zum Schutz des Erdreiches vor Verschmutzung und Verfahren zum Untersuchen dieses Erdreiches.
Title (fr)
Procédé pour contrÔler et réparer une feuille de protection de sol contre la pollution, et une méthode de contrÔle de sol.
Publication
Application
Priority
EP 91202358 A 19910913
Abstract (en)
The invention provides a method for inspecting the integrity of a foil (1) for protecting the ground against contaminants and for testing the foil (1) for damage by admitting a fluid into a system of tubes (2) arranged in or under the foil (1) and having at least one inlet opening (6) and at least one outlet opening (7) and measuring the composition or the pressure of the fluid at the outlet opening (7) and comparing this with the composition or pressure at the inlet opening (6). Damage in the foil (1) can be localized by arranging openings at certain locations in the tube system (2) and applying the method of claim 1 to the portion lying between the openings. The possibility also exists of repairing a foil (1) arranged under a building for protecting the ground against contaminants and having a system of tubes (2) arranged in or under the foil (1) by introducing a sealing material into tubes located in the vicinity of the damage. <IMAGE>
IPC 1-7
IPC 8 full level
E02D 31/00 (2006.01)
CPC (source: EP)
E02D 31/00 (2013.01)
Citation (search report)
- [X] DE 3616377 A1 19871119 - ZUEBLIN AG [DE]
- [X] DE 3831188 A1 19900322 - MUELLER BAUCHEMIE [DE]
- [Y] DE 3837431 C1 19900201
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 91202358 A 19910913