INSTRUMENTATION

• A1)FlexDAQ Data Logger

• A2)L900 RSTAR Array Radio Series

• B) Secondary Enclosure

• C)DT2485 DT Bus Data Logger

• D)Tunnel Profile Monitoring System

• E)Borehole Extensometer

• F)Measurand ShapeArray – SAAV

• G)Measurand ShapeArray – SAAX

• H) Precision Liquid Settlement Array

• I)DT2055B 5/10 Channel Vibrating Wire/Thermistor Data Logger

• J)Vibrating Wire Push-In Pressure Cell

• K)Tape Extensometer

• L)Low Profile Spot Weldable Strain Gauge

• M)Axial Total Earth Pressure Cell

• N) Inclinometer Casing

• O1)Inclinometer System

• O2)In-Place Inclinometer

• O3)Measurand ShapeArray – SAAV

Underground Tunnel Monitoring

Mont Terri Underground Laboratory
Switzerland