G.I.T. – Ground Investigation Testing

Excavation or trench

1 Stress state changes in the ground due to unloading caused by excavations (EN 1997‑1 – Ground modifications and stress redistribution).

Volum range to be investigated:
Deep beneath the excavation: > m

Work support

2 Groundwater regime modifications due to drainage, dewatering or waterproofing works (EN 1997‑1 – Effects of water on geotechnical structures).

Volum range to be investigated:
Deep beneath the excavation: > m

Embankments and dykes

3 Stability changes of natural or artificial slopes due to geometry alterations or hydraulic variations (EN 1997‑1 – Stability of slopes and earthworks).

Volum range to be investigated:
Deep under the embankment: > m

Deep foundation

4 Stress transfer to deeper soil layers induced by pile foundations and load transmission mechanisms (EN 1997‑1 – Pile foundations design principles).

Volume range to be investigated:
Investigation depth under piles: > m

Surface foundation

5 Stress increases in the soil mass due to shallow foundation loading and bearing capacity effects (EN 1997‑1 – Spread foundations).

Volume range to be investigated:
Investigation depth: > m

Excavation or trench – Lancellotta

1 Stress redistribution due to excavation geometry according to Lancellotta simplified approach.

Volume range to be investigated:
Deep beneath the excavation: m
Trench width from center: m

Work support – Lancellotta

2 Influence zone induced by retaining structures using Lancellotta empirical depth formulation.

Volume range to be investigated:
Depth beneath the excavation: m

Embankments and dykes – Lancellotta

3 Depth of significant stress variation below embankments based on Lancellotta criteria.

Volume range to be investigated:
Depth under the embankment: m

Deep foundation – Lancellotta

4 Stress transfer mechanism beneath piles using Lancellotta depth evaluation.

Volume range to be investigated:
Investigation depth: m

Surface foundation – Lancellotta

5 Investigation depth below shallow foundations following Lancellotta simplified rule.

Volume range to be investigated:
Investigation depth: m

Tensions underground distributions

Number of floors

Overload (kPa)

Foundation depth (m)

Maximum size L (m)

Minimum size B (m)

Groundwater level (m)

Unit weight γ (kN/m³)

Saturated γ (kN/m³)

Poisson ratio ν

Profondità grafico (m)

Passo (m)

% riduzione tensioni

Boussinesq Tensioni litost. (ridotte) 2B Punto critico (vol. significativo)

Risultati

Q alla base fondazione

— kPa

z = — m

Profondità 2B

— m

Linea di riferimento gialla nel grafico

Volume significativo (punto critico)

— m

Q ≈ — kPa — profondità di indagine raccomandata

Rapporto L/B

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GeoStru

G.I.T. – Ground Investigation Testing

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