Geotextile filter structure

The filter may be made of geotextile material (10). There is a top layer which may be thicker in the centre (16) than at the edge (14). This material may consist of a layer of e.g. felted fibrous synthetic material. The top layer rests on a thin lower layer (12) which may consist of fibrous material...

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Bibliographic Details
Main Authors DELMAS, PHILIPPE, ARTIERES OLIVIER
Format Patent
LanguageEnglish
French
German
Published 29.05.2002
Edition7
Subjects
BRAIDING
COTTON-WOOL
EMBANKMENTS
EXCAVATIONS
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
KNITTING
LACE-MAKING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
NON-WOVEN FABRICS
PERFORMING OPERATIONS
SOIL SHIFTING
TEXTILES
TRANSPORTING
TRIMMINGS
UNDERGROUND OR UNDERWATER STRUCTURES
WADDING
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Summary:The filter may be made of geotextile material (10). There is a top layer which may be thicker in the centre (16) than at the edge (14). This material may consist of a layer of e.g. felted fibrous synthetic material. The top layer rests on a thin lower layer (12) which may consist of fibrous material with a number of constrictions. There may be between 15 and 40 constrictions. This lower layer rests on a layer of soil or gravel which may be used for filtration.
Bibliography:Application Number: EP19980402016