Extensometers

Extensometers are used to measure movements of soil and rock along a single axis.

Applications for extensometers include:

• Monitoring settlement in excavations, foundations, and embankments.
• Monitoring subsidence above mines and tunnels.
• Monitoring movements in rock slides, walls, and abutments.
• Monitoring consolidation of soil under embankments and surcharges.
• Monitoring compression of piles and soil under piles.
• Monitoring spread in embankments.
• Monitoring convergence in underground openings, such as tunnels.