EP0193605A1 - Foil material for controllable leakproof separation of the areas located on both of its sides. - Google Patents
Foil material for controllable leakproof separation of the areas located on both of its sides.Info
- Publication number
- EP0193605A1 EP0193605A1 EP85905061A EP85905061A EP0193605A1 EP 0193605 A1 EP0193605 A1 EP 0193605A1 EP 85905061 A EP85905061 A EP 85905061A EP 85905061 A EP85905061 A EP 85905061A EP 0193605 A1 EP0193605 A1 EP 0193605A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spacer
- foil material
- material according
- sides
- film
- 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.)
- Granted
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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
Definitions
- Foil material for controllably tight separation of the areas on both sides.
- the invention relates to a flexible film material for controllably tight separation of the areas located on its two sides, for example to form a septic barrier in the ground to protect the groundwater from pollutants present in certain areas.
- the invention has for its object to provide a film material of the type mentioned that forms a double wall treatable as a unit.
- the solution according to the invention consists in the fact that the film material in the space between two closed films has a surface-connected spacer with flow cross sections open in the direction parallel to the film extension.
- This spacer is preferably made from a sheet material with a crosswise extension. protrusions formed. Conversely, it can also have depressions recessed transversely to its extent. The side flanks of the projections or depressions must be so steep in relation to the main direction of extension of the surface material that the foils cannot or do not lie so completely against the surface of the surface material located between them. that the flow cross sections formed by the projections or depressions can be closed.
- the design of the spacer as a lattice with at least two sets of essentially rectified strands, whose crossing or connecting points have a greater thickness than the individual strands, has proven particularly expedient, so that the projections mentioned at the crossing or connecting points are formed while there are recessed recesses therebetween.
- a typical example of such a spacer is a woven or knitted fabric or a one-piece grid with thickened connection points, as is preferably obtained by stretching a perforated plastic film in both surface directions, the webs lying between two holes being stretched, and the web between three or four next adjacent holes, the central surface area is less stretched as a connection point and therefore remains thicker.
- an open-pore surface material such as felt, an open-pore plastic film material or a porous granulate sintered product can also be used as a spacer.
- FIG. 1 shows a section through the film material according to the invention.
- Figure 2 is a view of the spacer
- FIG. 3 shows a view of the film material from which the spacer according to FIG. 2 was produced by stretching.
- the film material consists of two cover films 1 and the spacer 2, which according to FIG. 2 is formed from a grid of thin webs 3 and connecting points or crossing points 4 connecting them, which are thicker than the webs 3.
- This spacer comes about because a film of constant thickness, as shown in FIG. 3 and which is provided with regular rows of holes 5, is stretched in the two directions indicated by arrows in the hot-plastic state.
- the stresses in the area of the webs 3 'forming the narrowest cross section are greater than in area 4, so that the extension mainly relates to the webs while the surface areas 4 'located between four holes 5 are not deformed or are deformed only slightly and therefore remain thicker, as can be seen in FIG. 1.
- the cover films 1 consist, for example, of polyethylene with a thickness of preferably 1-5 mm.
- the maximum thickness of the spacer 2, which advantageously also consists of polyethylene, can be of the same order of magnitude. Otherwise, a film section for forming a seepage barrier wall in the ground from the material according to the invention can be designed as described and shown in the prior art, unpublished German patent application P 34 16 568.
- the cover foils 1 are expediently connected to one another on all sides by a circumferential edge seam, so that the space between them is tightly enclosed. This space can be tapped anywhere to check the medium in it.
- the pollutants to be monitored are vaporizable, it may be sufficient to attach a vacuum connection to the upper edge of the foil material sunk into the earth, via which " or the samples of the atmosphere in the space can be taken or checked continuously or periodically. If samples are in a liquid state must be removed, a sampling hose can be led from a sampling point provided at the upper edge to the lower area of the material intermediate space, so that samples can be sucked out of the liquid accumulating there.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Un matériau pelliculaire souple est utilisé pour séparer de façon étanche et réglable des zones se trouvant de ses deux côtés, par exemple dans le cas d'une paroi séparatrice de drainage. Dans l'espace intermédiaire entre deux pellicules fermées est agencé un écarteur plat connecté qui forme une section transversale ouverte d'écoulement parallèle à la longueur de la pellicule, de sorte que toute substance nuisible qui penètre dans l'espace intermédiaire par n'importe quel endroit est déviée vers un autre endroit et peut être ainsi reconnue.A flexible film material is used to sealably and adjustably separate areas on its two sides, for example in the case of a drainage dividing wall. In the intermediate space between two closed films is arranged a connected flat spacer which forms an open cross-section of flow parallel to the length of the film, so that any harmful substance which enters the intermediate space through any location is diverted to another location and can thus be recognized.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85905061T ATE38868T1 (en) | 1984-09-05 | 1985-09-05 | FILM MATERIAL FOR CONTROLLABLE TIGHT SEPARATION OF THE AREAS LOCATED ON BOTH OF ITS SIDES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843432642 DE3432642A1 (en) | 1984-09-05 | 1984-09-05 | FILM MATERIAL FOR CONTROLLABLE SEALING SEPARATE THE AREAS ON ITS BOTH SIDES |
DE3432642 | 1984-09-05 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0193605A1 true EP0193605A1 (en) | 1986-09-10 |
EP0193605B1 EP0193605B1 (en) | 1988-11-23 |
EP0193605B2 EP0193605B2 (en) | 1991-10-23 |
Family
ID=6244711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85905061A Expired - Lifetime EP0193605B2 (en) | 1984-09-05 | 1985-09-05 | Foil material for controllable leakproof separation of the areas located on both of its sides |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0193605B2 (en) |
JP (1) | JPS62500163A (en) |
AU (1) | AU4951985A (en) |
CA (1) | CA1238197A (en) |
DE (2) | DE3432642A1 (en) |
WO (1) | WO1986001554A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3607525A1 (en) * | 1986-03-07 | 1987-09-10 | Niederberg Chemie | BREAK DETECTOR ON A SLOT WALL |
CA1303863C (en) * | 1986-06-23 | 1992-06-23 | Walter Van Woudenberg | Pressure barrier liner |
DE3632951A1 (en) * | 1986-09-27 | 1988-03-31 | Dynamit Nobel Ag | FLEXIBLE SEALING COATING |
DE3714743A1 (en) * | 1987-05-02 | 1988-11-17 | Holzmann Philipp Ag | Landfill site with a landfill base which can be monitored |
DE3717586C2 (en) * | 1987-05-25 | 1996-04-04 | Huels Troisdorf | Landfill sealing |
DE3720519A1 (en) * | 1987-06-20 | 1988-12-29 | Flachglas Ag | SEALING STRUCTURE FROM A VERTICAL SLOT WALL AND A SEALING WALL ARRANGED THEREOF |
DE8902963U1 (en) * | 1989-03-10 | 1990-07-12 | Niederberg-Chemie GmbH, 4133 Neukirchen-Vluyn | Drainage mat |
DE4038962A1 (en) * | 1990-12-06 | 1992-06-11 | Akzo Gmbh | USE OF A PROTECTIVE MAT FOR SEALING |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3310453A (en) * | 1960-12-05 | 1967-03-21 | Bjorksten Res Lab Inc | Tear resistant material |
FR1577294A (en) * | 1968-02-02 | 1969-08-08 | ||
DE2237707A1 (en) * | 1972-08-01 | 1974-02-07 | Bayer Ag | DRAINAGE ELEMENT FOR EARTH AND GROUND HYDRAULIC ENGINEERING |
DE2545762A1 (en) * | 1975-10-13 | 1977-04-21 | Rosemeier Kg | Flexible hollow body made of plastic films - with cavity for drainage, heat insulation, or buffer layer in package |
DE2546753A1 (en) * | 1975-10-18 | 1977-04-28 | Isogleitchemie Handels Gmbh | Slip foil for buildings and roads - comprising foil pair superimposed over intermediary thin pref. PTFE foil |
US4170675A (en) * | 1977-05-02 | 1979-10-09 | Flexipane Limited | Reinforced flexible panels comprising plastic sheeting on opposed sides of a mesh layer and a metal foil layer in association with a plastic sheet layer |
-
1984
- 1984-09-05 DE DE19843432642 patent/DE3432642A1/en not_active Withdrawn
-
1985
- 1985-09-04 CA CA000489980A patent/CA1238197A/en not_active Expired
- 1985-09-05 JP JP60504535A patent/JPS62500163A/en active Pending
- 1985-09-05 WO PCT/EP1985/000449 patent/WO1986001554A1/en active IP Right Grant
- 1985-09-05 AU AU49519/85A patent/AU4951985A/en not_active Abandoned
- 1985-09-05 DE DE8585905061T patent/DE3566425D1/en not_active Expired
- 1985-09-05 EP EP85905061A patent/EP0193605B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO8601554A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE3432642A1 (en) | 1986-03-13 |
JPS62500163A (en) | 1987-01-22 |
AU4951985A (en) | 1986-03-24 |
WO1986001554A1 (en) | 1986-03-13 |
CA1238197A (en) | 1988-06-21 |
DE3566425D1 (en) | 1988-12-29 |
EP0193605B2 (en) | 1991-10-23 |
EP0193605B1 (en) | 1988-11-23 |
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