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Equipment tagged with [tunnel convergence]

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Bassett Convergence System
<p>The Bassett Convergence System is designed for automated monitoring of tunnel deformation. The system is robust, simple and proven. It is most commonly used in transportation tunnels, but can be adapted to monitor other structures. The itmsoil Bassett Convergence ...
Continuous Rod Extensometer
<p>The Continuous Rod Extensometer system accurately measures settlement and/or heave at single or multiple anchor points in a borehole and at its reference head. The system employs up to eight rods, anchored along the axis of a borehole, terminating in the ...
Convergence Meters - Model 4425
The Model 4425 Convergence Meter is used to monitor closures in underground excavations, tunnels, etc. It is comprised of a spring tensioned transducer, turnbuckle, connecting rod (stainless steel, fiberglass or graphite), rod clamp, and a pair of stainless ...
Digital Tape Extensometer
<p>The Digital Tape Extensometer is a portable device used for measuring displacement between pairs of eyebolts. These may be installed on a structure or in an excavation such as a tunnel or shaft. The Digital Tape Extensometer unit comprises a stainless steel ...
Rod Extensometer Single and Double Point EXB0006D
<p>The Single Point Model EX-1 is an inexpensive, simple, rugged, and reliable device to monitor deformation in under ground workings such as chambers, tunnels, mine galleries and mine excavations. The entire instrument is recessed in the borehole, providing ...
Rod Extensometers
<p>The Rod Extensometer system accurately measures settlement and/or heave between single or multiple anchor points in a borehole and at its reference head.<br>The system employs up to eight rods, anchored along the axis of a borehole, terminating in the reference ...
Tunnel Profile Monitoring
<p>The Tunnel Profile Monitoring System is a series of linked rods, fixed to the tunnel wall, to monitor deformation. A data logging system and related software is available to provide near real time displacement and generate a graphical representation of ...