Borehole Extensometer

Application

 

Borehole extensometers are used to measure movements of soil and rock along the the axis of a borehole. A wide range of extensometers is available, each designed for a particular application. In general, typical applications include:

 

• Monitoring settlement or heave in excavations, foundations, dams, and embankments

• Monitoring subsidence above mines, tunnels, and other underground openings

• Monitoring convergence in tunnel walls and other underground openings

• Monitoring movements in rock slides, walls, and abutments

• Monitoring consolidation of soil under embankments and surcharges

• Monitoring compression of piles and soil under piles