This paper employs a case history to describe deployment of new TDR cable and communication technologies to monitor stability. It involves remotely monitoring possible sinkhole-induced deformation near a “land bridge” installed over a recent subsidence event. ...

<p>For decades it has been common practice in the geotechnical industry to install diaphragm piezometers (pore pressure sensors) in boreholes using methods developed for standpipe piezometers in saturated soil (Dunnicliff, 1988, 1993). Surrounding a diaphragm ...

The author's research and experience suggest a number of additional geotechnical monitoring applications for TDR. For example, foam or air filled coaxial cables can be used to monitor groundwater levels. The presence of water in the dielectric produces a characteristic ...