EP 1653010 A1 20060503 - Method for performing an underwater dredging operation, and dredging installation
Title (en)
Method for performing an underwater dredging operation, and dredging installation
Title (de)
Unterwasser-Saugbagger-Verfahren und Vorrichtung dafür
Title (fr)
Procédé sous-marin de dragage et dispositif pour celui-ci
Publication
Application
Priority
- EP 04077955 A 20041026
- CN 200410095142 A 20041026
Abstract (en)
In a dredging operation, a cutting member (8) exerts a cutting force on a parcel (34) of pack bottom material. Thereby, in increase of the mutual distance of the bottom material particles (33) is generated, leading to a pore pressure decrease in the water field pores between said particles. By directing a water jet (30) towards said parcel of bottom material, a water flow is introduced into said pores thereby at least partly eliminating the pressure decrease and enabling a cutting operation with a decreased cutting force.
IPC 8 full level
E02F 3/92 (2006.01)
CPC (source: EP)
E02F 3/9262 (2013.01)
Citation (search report)
- [X] BE 1011979 A3 20000307 - DREDGING INT [BE]
- [X] NL 7709227 A 19790221 - STICHTING SPEURWERK BAGGERTECH
- [X] US 4004358 A 19770125 - VAN OS ADRIAAN GABRIEL
- [A] EP 0892116 A1 19990120 - DREDGING INT [BE]
- [A] US 6449883 B1 20020917 - VANDYCKE STEFAAN [BE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1653010 A1 20060503; EP 1653010 B1 20091216; AT E452249 T1 20100115; CN 1766241 A 20060503; CN 1766241 B 20110914; DE 602004024685 D1 20100128; ES 2337897 T3 20100430; PT 1653010 E 20100322
DOCDB simple family (application)
EP 04077955 A 20041026; AT 04077955 T 20041026; CN 200410095142 A 20041026; DE 602004024685 T 20041026; ES 04077955 T 20041026; PT 04077955 T 20041026