Sophisticated Geotechnical Instrumentation


AET has provided geotechnical engineering services for some of the most innovative structures in Minnesota and the Upper Midwest, many of which require sophisticated geotechnical instrumentation to monitor embankment and foundation performance during construction.

We understand the issues with proper instrumentation installation, especially on active construction sites with the need to protect sensitive instruments. AET takes care when installing geotechnical monitoring equipment to obtain accurate readings.

It matters to us that the instrumentation installed will function as intended, meaning that we take the time beforehand to understand the benefits and limitations of different sensors. We stay current and knowledgeable on our equipment and use well-trained personnel for our structural health monitoring and geotechnical instrumentation projects. Whether you need simple measurements or require high-level monitoring, AET offers installation and monitoring of sensors including

  • Accelerometers (used for dynamic pile analysis and testing, or PDA)
  • Earth pressure cells
  • Extensometers
  • Inclinometers
  • Load Cells
  • LVDTs
  • Piezometers
  • Seismographs (for vibration monitoring)
  • Settlement cells
  • Settlement plates
  • ShapeAccelArray sensors
  • Strain gages
  • Strainmeters (or "sister bar" strain gages)
  • Tiltmeters

AET is familiar with vibrating wire, electrical resistance, MEMS and accelerometer-type sensors. For projects requiring sensor installation in boreholes, AET's in-house geotechnical drilling services provide a significant advantage for our clients. Our drillers are experienced with special drilling or borehole grouting needs to properly install borehole sensors.

Depending on client needs and project requirements, AET monitors sensors with data acquisition techniques ranging from handheld readout equipment to automated, real-time data acquisition with remote cell-modem communications.

Contact us to discuss the geotechnical requirements or time-sensitive challenges of your project.