Instrumentation for measuring and monitoring geotechnical and geomechanical parameters in tunnels, caverns and underground works.
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1 TUNNEL MONITORING Instrumentation for measuring and monitoring geotechnical and geomechanical parameters in tunnels, caverns and underground works. SISGEO design and manufacture a comprehensive range of equipment to suit specific applications and engineering requirements. SISGEO will be pleased to assist and provide further information to select equipment.
2 33 Instrumentation Application Concrete stress cell Measurement of concrete stress changes 3 3 Measuring anchor Stress distribution of anchors Pressure cell Measurements of rock pressure on lining Convergence tape extensometer Movements of tunnel lining Increx mobile extensometer Strains and deformations Anchor load cell Monitoring of anchor loads Piezo-settlement column Water level and settlement control Smach accelerograph Vibration monitoring during excavation 9 0 Instrumentation Application Borehole extensometer Rock movements Pressure cell Pressure measurement in tunnel linings Convergence tape extensometer Movements of tunnel lining Increx mobile extensometer Strains and deformations Anchor load cell Monitoring of anchor loads Embedment strain-gauge Concrete strain measurements (shotcrete) Electrical piezometer Control of pore-water pressure Smach accelerograph Vibration measurement during excavation
3 TUNNEL MONITORING INSTRUMENTATION Well-planned Monitoring Program Developing Stage Determine the purpose of instrumentation Select the parameters to monitor Define factors which influence measurements Prepare budget Select instruments and their locations Prepare specifications and instrument procurements Plan instrument installation and maintenance Plan data management and reporting Execution Stage Procure and install instruments Maintain instruments and readouts Collect measurements and manage data Compare data with design values Interpret data Plan a corrective instrument implementation Planning a performance monitoring programme in an essential component of succesfull tunnel construction. Tunnel monitoring is reccomended to determine the behaviour of the surrounding soil during excavation, to ensure the stability and the safety of the structure. Criteria of instrument selection: Reliability of measurements (resolution,accuracy and repeatability) Long-term stability and instrument longevity Easy of automation for real time monitoring Efficient data management Convergence tape extensometer Concrete hydraulic stress cells Borehole extensometer Electrical piezometers Anchor load cells Vibrating wire strain-gauges Pressure cells Inclinometer probe and readout Smach strong motion accelerograph
4 Starin-gauges on steel lining Pressure cell and convergence bolt DM level gauge Instrumentation Application Borehole extensometer Rock movements Convergence tape extensometer Movements of tunnel lining Increx mobile extensometer Strains and deformations Piezo-settlement column Water level and settlement control 3 Settlement system Monitoring of ground settlement Surface clinometer Structural inclination movement 3 Settlement column Soil settlement above tunnel Smach accelerograph Dynamic measurements during excavation
5 AUTOMATIC MONITORING SYSTEM The performance offered by the Automatic Data Acquisition System is: On-line management of a network of several hundred instruments Collection of a large quantity of data Checking of the design hypotheses Operating support during the tunnel construction Data analysis and evaluation of the tunnel safety REMOTE DATA CENTER off-line monitoring PERSONAL COMPUTER Data Management Software PHONE MODEM RECORDING CARTDRIDGE PLOTTER Data Bank Special processing Data validation Graph presentation ADK-0 DATALOGGER Operating Software PERSONAL COMPUTER Data Management Software PHONE MODEM PRINTER PLOTTER MONITORING SYSTEM Data acquisition Self diagnosis Processing on-line Data recording Alarms Display Printing Sisgeo s ADK-0 is a powerful and versatile multi function datalogger which allows to manage a large instrument network.
6 Via Morandi, 0090 Segrate - MI - Italy Tel Fax info@sisgeo.com PROJECT REFERENCE TORINO - BARDONECCHIA Motorway - Italy MOTTARONE Motorway Tunnel - Italy CELS Motorway Tunnel - Italy M.T.R. - Metro Naples - Italy VILLETTA - Motorway Tunnel - Italy TORINO - SAVONA Motorway - Italy ELMALIK Motorway Tunnel - Turkey GILO - Motorway Tunnel - Israel AOSTA - S. BERNARDO Motorway - Italy EL SALAAM SYPHON UNDER SUEZ CANAL - Egypth S. CROCE Railway Tunnel - Italy FREJUS Motorway Tunnel - Italy M.R.T. - Metro Rome - Italy TAIPEI M.R.T. - Taiwan UNDERGROUND PARKING in Milan - Italy COZZO della GUARDIA Hydraulic Reservoir - Italy PORCE II HYDROELECTRIC PROJECT - Colombia T.A.V. Rome-Naples - Colli Albani Railways tunnel - Italy PORT FOUAD PROJECT - Egypth MATEFER Railway Tunnel - Italy Highway Zagreb - Rejka - Gorsky Kotar Tunnel - Croazia UNDERGROUND RAILWAYS CROSSING of Genova - Italy KARUN III - Diversion Tunnel - Iran O.S.E. Railway Tunnel Ano Liossia - Greece TEMBI RAILWAY TUNNEL - Greece T.A.V. MILANO - GENOVA - Italy UNDERGROUND RAILWAYS Seoul - Korea ANCONA - BARI - S. Vito Railways Tunnel - Italy S. PELLEGRINO TERME - Motorway Tunnel - Italy GIUSTINO - Hydraulic Reservoir - Italy PETRALIA - Underground mine - Italy CASECNAN PROJECT - Philippine REALMONTE - Underground mine - Italy KALI GANDAKI H.P. - Nepal MRTA BANGKOK - Thailand CONTUY MEDIO - Venezuela TUNN - REV. 0-0/99
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