TELT Lyon -Turin, hiDCon elements and Reverse Head Extensometer
Reverse Head Extensometer
In the Saint Martin de la Porte section, compressive coal strata have to be crossed. During excavation, advance extrusion measurements are carried out with the Solexperts Reverse Head Extensometer to plan and control the securing measures at the tunnel face.
hiDCon elements
For the tunnel lining in the coal strata (front houiller, see figure below), steel arches and a flexible shotcrete lining with hiDCon compression elements are used.
Downloads
hiDCon
hiDCon
hiDCon® – Publications
- Tunneling in Squeezing Rock
- The use of highly deformable concrete elements tunneling in compressive and swelling rock conditions rock conditions
- Modular tunnel crumpling system for tunnels in highly swelling rock masses
- Deformable steel Support for major tunnel cross-sections tested in the Gotthard Base Tunnel
- Tunneling in swelling rock
- Saint Martin Squeeze, Barla
- DESIGN METHODS WITH YIELDING SUPPORT IN SQUEEZING AND SWELLING ROCKS, Kovari 2009
- Tunnelling in Squeezing RockYielding Elements and Face Control
- Design and analysis of yielding support in squeezing ground, Anagnostou 2007
- Lessons learned during the excavation of the Saint Martin, Barla
- Modular yielding support for tunnels in heavily swelling rock, Kovari 2007
- Design and realisation of the PRACLAY experimental gallery
- Large deformations in squeezing ground in the Saint-Martin La Porte gallery along the Lyon-Turin Base Tunne
- CERN HL-LHC POINT 1, The ‘flexible’ US/UW17 cavern temporary lining, an innovative solution
- Difficulties associated with high convergences during excavation of the Saint Martin La Porte access adit
- FLEXIBLE SUPPORTING FOR EXCAVATION IN CMHM “ARGILITE”
- ANDRA AFTES 2015
- SOUTÈNEMENT SOUPLE POUR LE CREUSEMENT DE GALERIES DANS LES ARGILITES DU CMHM
- Interpretation of Core Extrusion Measurements When Tunnelling Through Squeezing Ground
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
