Nowadays, unstable rocky slopes are inspected and controlled by measuring surface motions by means of radar, long range optical detection or GPS. However, those procedures may miss critical structural modifications in depth, as certain types of instabilities do not give rise to surface motions for years.
Spektrum detects environmental vibrations of potentially unstable slopes and rocks. Their vibrational properties provide information on the size of instabilities and the disruption of rock masses. This is similar to the assessment of the condition of large bridges and dams.
The technology is suitable for real-time control of problem slopes. It may also be used for preliminary assessments of potentially dangerous slopes and may serve as a base for more detailed geological investigations.
Learn more about Spektrum on their website: www.spektrum-geophysik.ch