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Equipment tagged with [subsidence]

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Digital Tape Extensometer
<p>Stainless steel reference points are permanently installed at measurement stations along the tunnel or structure. To obtain a measurement, the operator stretches the tape between two reference points, hooking the free end of the tape to one point and the ...
Magnet Extensometer
<p>The magnet extensometer is used to monitor settlement and heave in excavations, foundations, dams, and embankments. It can also be installed behind retaining structures, such as sheet piles and slurry walls, and above underground openings, such as tunnels ...
Rod Extensometer
<p>The rod extensometer monitors changes in the distance between one or more downhole anchors and a reference head at the borehole collar. Components of a rod extensometer include anchors, rods with protective tubing, and a reference head. The anchors, with ...
Sondex Settlement System
<p>The Sondex Settlement System is used to monitor settlement and heave in excavations, foundations, dams, and embankments. It can also be installed behind retaining structures, such as sheet piles and slurry walls, and above underground openings, such as ...