EP 0770734 B1 20000105 - Method for installing ground anchors
Title (en)
Method for installing ground anchors
Title (de)
Verfahren zum Einbringen von Zugpfählen
Title (fr)
Procédé de mise en place de tirants d'ancrage
Publication
Application
Priority
CH 298895 A 19951023
Abstract (en)
[origin: EP0770734A1] The anchoring bore is formed by a tube (8) with a drilling and injection tool assembly (9) at its leading end. The internal passage of the tube defines a concrete injection conduit (10), and the tube has a pair of lateral nozzles (13,14), oriented in opposite directions, arranged radially behind its leading end. The nozzles allow injection of concrete into the surrounding ground surface at a pressure greater than 150 bar, while the tube is rotated around its longitudinal axis and withdrawn from the bore formed by the drilling tool. After complete withdrawal of the tube, cables or similar anchoring components may be inserted into the bore before the concrete sets around them to define an anchoring mass.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0770734 A1 19970502; EP 0770734 B1 20000105; CH 691128 A5 20010430; DE 69606008 D1 20000210; DE 69606008 T2 20000907; ES 2142565 T3 20000416
DOCDB simple family (application)
EP 96810680 A 19961011; CH 298895 A 19951023; DE 69606008 T 19961011; ES 96810680 T 19961011