Deep excavation geotechnical monitoring: what to measure and how often
Inclinometers in the diaphragm wall, piezometers, loads in struts and anchors, benchmarks and crack gauges on neighbouring buildings. Where to place them, how often to read them, and when to stop the excavator. A guide for geotechnical engineers and site managers.
- Why measure an excavation if it is already designed
- Legal and standard framework: the 2012 regulation and Eurocode 7
- What to measure: instrument -> quantity -> location -> purpose
- Layout: measurement sections
- Measurement frequency by work phase
- Thresholds and response plan
- Most common errors: installation and zero reading
- Most common errors: interpretation and alarms
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