

Vibration Monitoring
Did you know that Sayre Associates offers vibration monitoring services? We are the only firm based in South Dakota that offers this valuable service for construction or blasting activities. It provides a method to measure the actual vibration in the ground being produced by construction or blasting activity. Keep reading to learn more and contact us if you have any questions!
Why vibration monitoring services?
To collect data on existing structures, utilities, etc. regarding the level of vibration being produced on site of the construction project.
What methods are used to monitor vibration?
Pre-Existing Condition Survey
By use of video camera and pictures, the existing condition of nearby structures and pavements are recorded prior to construction activity. This provides a good baseline condition of the existing structures nearby.
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Vibration Monitoring
We use seismographs that are strategically placed to measure and record the actual ground-induced vibrations to obtain accurate vibration levels at the structure being monitored.
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Crack Monitoring
Crack gauges are installed on existing cracks of concern and monitored before, during and after construction. This provides record of movement of the crack and provides a relative timeframe as to when the movement occurred.
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Remote Monitoring Capabilities
Both vibration and crack monitoring can be done remotely and data sent out immediately after recording an event. This provides exact times of the triggering event and helps determine what was the trigger event.

Seismograph

Crack monitoring
What should people know about vibration monitoring?
Vibration monitoring serves to not only protect property owners but also the contractor. By monitoring, we are able to record the vibrations to determine if they are excessive to the point of possibly causing damage to properties and bring it to the attention of the contractor so changes to their process can be made. It can also serve to protect the contractor against false accusations, particularly when done in conjunction with a pre-blast survey which documents items such as existing cracks in foundations and walls.

Remote vibration monitoring station for a nearby quarry at the sewer treatment plant in Dell Rapids, SD.

The screen of an Instantel Micromate unit, actively monitoring a project.

Taking accurate measurements and photos to monitor cracks.

Remote vibration monitoring station for a nearby quarry at the sewer treatment plant in Dell Rapids, SD.