EP 0267815 B1 19920129 - METHOD AND APPARATUS FOR DRAINING THE EDGES OF ALL STABILIZED SURFACES IN CIVIL ENGINEERING, OR THE EDGES OF A CONSTRUCTION
Title (en)
METHOD AND APPARATUS FOR DRAINING THE EDGES OF ALL STABILIZED SURFACES IN CIVIL ENGINEERING, OR THE EDGES OF A CONSTRUCTION
Publication
Application
Priority
FR 8615633 A 19861110
Abstract (en)
[origin: US4806043A] A vertical drainage element is constructed and laid in position while at the same time forming a narrow vertical channel in the ground by means of an excavating machine or trencher by performing the following successive operations: a strip of filtering material is unwound from a rotating roll of strip behind the trencher; the strip is introdued within the channel formed in the ground while being shaped in the form of a trough, the bottom of the trough being placed at the bottom of the channel while the side walls of the trough are placed against the channel walls; the top edges of the trough are held in position one against the other while filling the trough with bulk material in granular form which subsequently constitutes a vertical filtration block; the top edges of the trough of filtering material are closed on top of the completed block and are fastened together so as to form a closed jacket around the block.
IPC 1-7
IPC 8 full level
E01F 5/00 (2006.01); E02B 11/00 (2006.01); E02D 3/10 (2006.01); E02F 5/10 (2006.01); E02F 5/12 (2006.01)
CPC (source: EP US)
E02F 5/104 (2013.01 - EP US); E02F 5/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES GB IT LI LU NL
DOCDB simple family (publication)
EP 0267815 A1 19880518; EP 0267815 B1 19920129; AT E72278 T1 19920215; AU 584822 B2 19890601; AU 8081287 A 19880512; CA 1289369 C 19910924; DE 3776495 D1 19920312; ES 2030088 T3 19921016; FR 2606435 A1 19880513; FR 2606435 B1 19890414; US 4806043 A 19890221
DOCDB simple family (application)
EP 87402111 A 19870922; AT 87402111 T 19870922; AU 8081287 A 19871105; CA 551127 A 19871105; DE 3776495 T 19870922; ES 87402111 T 19870922; FR 8615633 A 19861110; US 10374687 A 19871001