UK UXO CONSULTANCY & SPECIALIST SUPPORTCLARITY BELOW THE SURFACE
RISK REDUCTIONSYSTEMS

GLOSSARY / Construction & investigation

Intrusive works

Activities that enter or disturb the ground, such as trial pits, drilling, excavation and piling. Each activity has a footprint, method and depth that can influence the UXO assessment.

THE RRS GLOSSARY

Why it matters to a project

Describing all activity as general groundworks can hide important differences. The risk review should be informed by the actual investigation or construction schedule.

PROJECT EXAMPLE

A trial pit and a deep borehole on the same site may need different consideration.

A useful distinction

Previous surface development does not by itself establish the conditions at every depth.

Questions to ask when it appears in a scope

  • What area, activity and decision does this term refer to?
  • What evidence or output will the project team receive?
  • What limitations need to be carried into the next stage?

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