Berne railway station; measure Postparc Lot 1.2
Monitoring of the north and south girders
The Regionalbahn Bern Solothurn (RBS) constructs a new underground station under the existing SBB station in Bern (Postparc building). Before the construction of the caverns for the underground station, the Postparc building must be supported. Two girders were built in the subsoil, which transfer the forces into the subsoil under the caverns to be constructed on bearings made of micropiles. Solexperts was commissioned for the instrumentation of the girders and the foundation.
Installed sensors
Conventional sensors:
- Pressure in hydraulic jacks with pressure sensors
- Displacement/heave of hydraulic jacks with displacement transducers
- Hydrostatic levels for settlement and heave
- Temperatures
- VW strain gauges for strain on micropiles
- Load cells for pre-stressing
- Strain in base plate with displacement transducer
- Displacements in the ground with inclinometer chains and extensometers
Fibre optic sensors
- Distributed strain and temperature sensing in the girders
- Distributed strain and temperature sensing at the micropiles
Data acquisition with GeoMonitor
The Solexperts GeoMonitor II data acquisition and control system is used for data acquisition. It connects the decentralised system components (interfaces) with the measuring centre via an RS485 bus.
The data bus connects the interfaces of the Solexperts Bus Interface (SBI) type. The sensors are connected to the SBIs which record the measurement signal, digitise it with analogue-digital converters and transmit it to the data acquisition system.
Downloads
Solexperts France
Solexperts France
- Instrumentation géotechnique dans le Laboratoire Souterrain de Meuse/Haute-Marne
- Alptransit
- Laboratoire de recherche Meuse/Haute Marne Mesures hydromécaniques dans une roche argileuse profonde
- Reconnaissances à l’avancement dans la galerie hydraulique Salazie-Amont
- Modular yielding support for tunnels in heavily swelling rock
- SysMoG Tribune de Genève H2
- High-resolution characterization of the induced fracture network around galleries in the Callovo-Oxfordian Clay using discrete fracture network inversion
Publications Gas Measurements
- 2021 Lacroix, Piedevache, In situ continuous monitoring of dissolved gases
- 2021 Baseline Subsoil CO2 Gas Measurements
- Mont Terri underground research laboratory – CO2 containment assurance experiments
- Lessons Learned from Practical Application of Geochemical Monitoring Methodology to CO2 Storage Site: Specific Case of Claye-Souilly project, Paris Basin, France
- Well integrity assessment under temperature and pressure stresses by a 1:1 scale wellbore experiment
- Mapping of natural CO2 emissions before NECCS
Solexperts France Products
- Temperature measurement chain TMK2
- Chaîne inclinométrique pour mesure de convergence
- Systèmes pour contrôle d’inclinaison CLINO, CLINO RAIL et CLINO
- Chaîne inclinométrique
- Pressure sensor with Data-Logger SDL for piezometer
- Capteur de pression Drive Point pour piézomètre
- Tube inclinométrique Solexperts ICL 63
- Total Pressure Cell
- Extensomètre de surface à fil invar
- Extensomètre à corde vibrante (béton)
- Extensomètre à corde vibrante (acier)
- Cellule de charge à corde vibrante (FCV)
- Cellule de charge DMS
- Cellule de charge
Solexperts France Services
Geotechnics
Geotechnics
- Decision Making in Tunneling Based on Field Measurements, Kovari 1993
- The Control of Ground Response, Milestones up to the 1960s, Kovari 2003
- Vibration measurement
- Surveillance des voies ferrées de BLS AlpTransit à Frutigen avec des capteurs inclinométriques
- Grundbau -Taschenbuch Geotechnische Messverfahren
- Risks in Tunnelling
- Instrumented test shaft in soft ground
- GEOTECHNICAL AND HYDROGEOLOGICAL MEASUREMENTS, SAFETY AND RISK IN SLOVAKIA AND SWITZERLAND
- Safety System in Urban Tunnelling; The Zimmerberg Tunnel
- Foundation analysis and restoration of a 13th century church founded on lacustrine clay
Displacements along profiles
- linewise measurements
- CLINO-Chain: Inclinometer Chain
- Trical software
- Solexperts Datenerfassung (PCD und SolLine-App)
- MRD – Manual Readout Device
Publications Sliding Micrometer and Trivec
- Gleitmikrometer, Kovari 1979
- Gleitmikrometer Gewichtsstaumauer Albignia, A. Thut 1981
- Gleitmikrometer, U-Bahn München, Kovari 1984
- Digitales Gleitmikrometer, Gleitdeformeter und Trivec
- Precision deformation measurements at large dams
- Trivec and Sliding Micrometer: fully digital instruments for geotechnical displacement and deformation measurement
- MONITORING OF DISPLACEMENT OF VIDE RANGE FOCUSED ON HISTORICAL BUILDINGS AND SLOPES
- USE OF GEOTECHNICAL MONITORING IN REMEDIATION PROJECT OF AN UNSTABLE SLOPE
- Continuous Strain Monitoring in the Rock Foundation of a Large Gavity Dam
- Monitoring the Nailed Soil Wall at Önzberg
Borehole extensometer
- SolExtensometer
- Modular-Extensometer
- Reverse Head Extensometer
- Fixed installable micrometer (FIM)
- Kontinuierliche Verformungsmessung vor der Tunnelbrust mit dem RH-Extensometer (RHX) und dem Modularen RHExtensometer (M-RHX)
- New instruments improve site characterization with time based measurements
- Displacement measurements ahead of a tunnel face using the RH Extensometer
Pile tests
- Ultrasonic measuring device
- Pile integrity tests and component tests
- Statische Pfahlbelastungsversuche Hardturmstadion Zürich
