EP 0534338 A3 19930609 - CONTROL SYSTEM FOR A TUNNEL BORING MACHINE
Title (en)
CONTROL SYSTEM FOR A TUNNEL BORING MACHINE
Publication
Application
Priority
DE 4131673 A 19910924
Abstract (en)
[origin: EP0534338A2] The control system contains a sensor unit (18) with a dynamically synchronised gyroscope which contains two linear accelerometers allocated to orthogonal measuring axes and responds to azimuthal and pitching movements. The sensor unit is located in a housing (28) which is reproducibly guided in a running tube (16). In its working position, the sensor unit is releasably connected to the driving head (4) of the tunnel boring machine. By means of a cable (20) which can be wound up and unwound on a drum (22), the housing can be moved in the running tube and out of the running tube into a reference position. Re-adjustment of the sensor unit is effected in the reference position at certain moments of the tunnel boring. The output signals from the sensor unit and a path-length measuring device on the drum are analysed in a control unit (26) for determining the position of the driving head, deviations from a desired axis (6) being determined and serving to regulate the driving. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 7/06 (2006.01); E21B 7/20 (2006.01); E21B 47/022 (2012.01); E21D 9/093 (2006.01)
CPC (source: EP)
E21B 7/06 (2013.01); E21B 7/201 (2013.01); E21B 47/022 (2013.01)
Citation (search report)
- [YD] DE 2922415 A1 19801204 - BODENSEEWERK GERAETETECH
- [Y] WO 8805114 A1 19880714 - SUNDSTRAND DATA CONTROL [US]
- [X] PATENT ABSTRACTS OF JAPAN vol. 11, no. 100 (P-561)28. März 1987 & JP-A-61 251 710 ( ISHIKAWAJIMA HARIMA HEAVY IND CO LTD ) 8. November 1986
- [A] PATENT ABSTRACTS OF JAPAN vol. 9, no. 281 (P-403)9. Dezember 1983 & JP-A-60 123 715 ( NIPPON KOKAN KK ) 2. Juli 1985
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
EP 0534338 A2 19930331; EP 0534338 A3 19930609; EP 0534338 B1 19960731; AT E141000 T1 19960815; DE 4131673 A1 19930401; DE 4131673 C2 19950504; DE 59206842 D1 19960905
DOCDB simple family (application)
EP 92116084 A 19920921; AT 92116084 T 19920921; DE 4131673 A 19910924; DE 59206842 T 19920921