... such as the design and installation of buried high-voltage power cables, oil and gas pipe lines, and other ground modification techniques employing heating and freezing. The optical scanning (OS) approach and first version of corresponding measuring instrument were developed in 1980s and 1990s for simultaneous...

... mine has been instrumented and the analysis of the data is being carried out. 1 Introduction Mining and rock engineering projects often rely on limited stress measurements carried out at certain stages of the project. In number of cases previously, the stress state has been monitored during...

... groundwater Cityringen database instrument shaft inclinometer client metroselskabet real time system information fusion strain gauge metroselskabet limestone deposit alignment tunnel excavation data management cityringen project monitoring construction database system ABSTRACT...

...Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla & Jiménez (Eds) © 2014 Taylor & Francis Group, London, 978-1-138-00149-7 Critical review of Eurocode-7 regarding monitoring rock masses by field instrumentation: Devices and data analysis M.R. Migliazza...

... shotcrete Anchor Upstream Oil & Gas numerical analysis MPa metro station fracture upward weakness zone monitoring west track tunnel extensometer instrument shaft matinkylä station excavation stress field station hall installation Rock Engineering and Rock Mechanics: Structures...

... and abundance of shallow underground openings. A series of field investigations with instrument deployment were carried out between March and November 2008. Data analysis shows that it is indeed possible to detect extremely weak spiky signals, whose characterization and location indicate that they are generated...

... con- crete barriers of20 em thickness were formed between the rock and the containment system. South concrete wall is exposed to the entrance tunnel, which is not a typical case for full-scale facilities. A platform above the entrance of the cavern was also required to install instruments, manhole...

... shiplock in TGP. Three different kinds of monitoring instruments were accepted as the basic methods available for monitoring changes of rock stresses. They are YOKE gauges imported from Australia, Piezoelectrical stress gauges and Piezomagnetic stress gauges. Some of these instruments had being working...

... separated the rock mass forming the shape into vertical slabs. The other two are slightly inclined sheeting joints parallel to current topography. displacement high accuracy Displacement Measurement unstable rock mass acoustic emission instrument april 28 laser displacement measurement...

... access shaft irreversible displacement Switzerland rail transportation Observation Platform instrument excavation thermocouple ground transportation observatory discontinuity sensor construction rock ridge Sphinx Reservoir Characterization Jungfraujoch displacement inclinometer...

... main tunnel excavation portal instrument diameter excavation face extensometer main tube pilot tunnel excavation construction deformation rock mass tunnel main tunnel convergence Pinglin tunnel tunnel excavation twin tube roadway tunnel Eurock '96, Barta (ed 1996 Balkema...

... to establish whether a repository at the site could meet regulatory requirements (Hickford, 1994). Reservoir Characterization Nirex instrument waste management Sellafield laboratory Upstream Oil & Gas borehole excavation disturbance measurement investigation rock characterisation facility...

... containing fracture zones and planes, in addition to well developed joints. At the time of starting the excavation, the geological condition in and around the cavern to be excavated was investigated in detail and, a large number of various measuring instruments were set around the cavern. The measured...