EP 1227189 A2 20020731 - Underdrain excavation apparatus
Title (en)
Underdrain excavation apparatus
Title (de)
Grabvorrichtung für einen Abzugskanal
Title (fr)
Appareil d'excavation pour un drainage
Publication
Application
Priority
- JP 2000369130 A 20001204
- JP 2001027547 A 20010202
Abstract (en)
Provided is an underdrain excavation apparatus by which, while an underdrain is excavated in the ground, a hydrophobic material and/or a water-holding material (functional material) can be filled in the underdrain executed in a smooth and reliable manner. In the underdrain excavation apparatus, a soil cutting shank 11 which is vertically held and a bullet-like underdrain borer 12 which is provided on a lower end of the soil cutting shank 11 are pulled in a horizontal direction by a bulldozer 14 to excavate an underdrain 22 in a ground 21, and a functional material supplied via a functional material transport line 13 provided in the soil cutting shank 11 and in the underdrain borer 12 is filled in the underdrain. A gas flow generator generating a gas flow by jetting a high-pressure gas supplied from a high-pressure gas generator into a tubular body is connected with the functional material transport line 13.
IPC 1-7
IPC 8 full level
E02B 11/02 (2006.01); E02F 5/10 (2006.01)
CPC (source: EP US)
E02F 5/101 (2013.01 - EP US); E02F 5/102 (2013.01 - EP US)
Designated contracting state (EPC)
DE DK FR GB
DOCDB simple family (publication)
US 2002066214 A1 20020606; EP 1227189 A2 20020731; EP 1227189 A3 20030305
DOCDB simple family (application)
US 99520101 A 20011127; EP 01128524 A 20011129