Ground Vibration Monitoring
  • Review site layout, nearby structures, and vibration-sensitive areas

  • Identify locations for seismograph or vibration sensors

  • Install sensors firmly on ground or structural elements

  • Establish baseline vibration readings before construction activity

  • Set thresholds according to local regulations and project specifications

  • Start continuous vibration monitoring during construction or blasting operations

  • Record real-time data with automated data loggers

  • Trigger alarms when vibration exceeds limits

  • Analyze frequency, amplitude, and duration of vibration events

  • Generate time-history and spectral plots for assessment

  • Compare results against standards and regulatory thresholds

  • Prepare interpretative report with recommendations for mitigation

Ground Vibration Monitoring is essential for construction sites near sensitive structures, pipelines, or heritage buildings. Vibrations from pile driving, excavation, or heavy machinery can cause structural damage, cracks, or operational interference if not properly monitored. In Sri Lanka, monitoring is particularly important in densely populated urban areas or near historical sites.

Sensors record vibration magnitude, frequency, and duration in real-time, allowing engineers to detect excessive vibration levels. Baseline readings and threshold limits ensure that monitoring is accurate and actionable. Alerts can be issued to halt or modify construction activities if vibrations exceed allowable levels.

Reports include time-history plots, peak particle velocity analysis, and recommendations for mitigating vibration impacts. This allows project teams to comply with safety standards, prevent damage, and maintain smooth project execution while protecting surrounding structures.