PRELIMINARY VALUE CONTEXT
Vibro Stone Columns and piling: interpret early value comparisons carefully.
Comparisons between ground improvement and piling are sensitive to the verified ground model, foundation arrangement, scope, working platform, access, logistics, programme assumptions and project risks. A preliminary screen can help structure the questions, but it cannot establish a project saving, carbon outcome or execution commitment.
Comparable scope: identify what each option would need to include before comparing any early budget or programme assumptions.
Ground evidence: use appropriate investigation and interpretation to understand whether a route warrants further review.
Construction context: consider working platform, adjacent assets, access, noise, vibration, spoil, materials and sequence through the project team.
Decision boundary: obtain accountable design, estimating and carbon assessment before drawing a project-specific cost, carbon or programme conclusion.