Global Patent Index - EP 0860556 A1

EP 0860556 A1 19980826 - Method for making a trench under water and device therefor

Title (en)

Method for making a trench under water and device therefor

Title (de)

Verfahren zur Herstellung von Gräben unter Wasser und Vorrichtung dafür

Title (fr)

Procédé et dispositif pour le dragage des tranchées au fond de plans d'eau

Publication

EP 0860556 A1 19980826 (EN)

Application

EP 98200227 A 19980127

Priority

NL 1005330 A 19970220

Abstract (en)

The invention relates to a method for making a trench (9) under water, wherein bed material (10) of the trench (9) for excavating is processed by means of water under pressure flowing out of at least one water jet (7), wherein the water jet (7) is displaced in an at least partially dug-in position along the path of the trench (9), that water under pressure is sprayed from the water jet (7) in a spraying direction (18) lying transversely of the trench direction along the bed material (10) of the trench for excavating and that by means of at least one auxiliary water jet (8) water under pressure is sprayed at bed material (10) of the trench (9) for excavating such that the displacement path of the water jet (7) is cleared. The invention also relates to a device for performing the above stated method. <IMAGE>

IPC 1-7

E02F 5/28

IPC 8 full level

E02F 3/92 (2006.01); E02F 5/28 (2006.01); E02F 5/10 (2006.01)

CPC (source: EP)

E02F 3/9206 (2013.01); E02F 5/107 (2013.01); E02F 5/287 (2013.01)

Citation (search report)

Designated contracting state (EPC)

BE DE DK ES FR GB IE IT NL PT

DOCDB simple family (publication)

EP 0860556 A1 19980826; NL 1005330 C2 19980824

DOCDB simple family (application)

EP 98200227 A 19980127; NL 1005330 A 19970220