Ground Improvement Parameters: ground_freezing
Design parameters for ground improvement techniques — stone columns, soil mixing, jet grouting, dynamic compaction, vibro-compaction, preloading with PVDs, deep soil mixing, micropiles, and ground freezing — with bearing capacity, settlement reduction, column dimensions, applicable soils, and QC methods
| technique | applicable soil types | QC method | area replacement ratio max (dimensionless) | area replacement ratio min (dimensionless) | bearing capacity increase factor max (dimensionless) | bearing capacity increase factor min (dimensionless) | column diameter m max (m) | column diameter m min (m) | environmental impact | improvement depth max m (m) | liquefaction mitigation | modulus improvement factor max (dimensionless) | modulus improvement factor min (dimensionless) | notes | production rate m per day (m/day) | relative cost | settlement reduction factor max (dimensionless) | settlement reduction factor min (dimensionless) | spacing m max (m) | spacing m min (m) | undrained shear strength gain pct max (percent) | undrained shear strength gain pct min (percent) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ground_freezing | any_saturated_soil | temperature_monitoring_and_heave_gauges | 1 | 0.3 | 20 | 5 | 3 | 0.3 | medium | 50 | yes | 5,000 | 50 | Artificial ground freezing (AGF) for excavation support and groundwater control; brine or LN2 freeze pipes; freeze pipe spacing 0.5-1.5m; freezing time 2-8 weeks brine, hours for LN2; UCS of frozen soil 2-30 MPa depending on soil type and temperature; freeze wall thickness 0.5-3m; most effective in saturated soils; ground heave and post-thaw settlement must be managed; temporary measure only; depth limited only by equipment; production rate expressed as freeze pipe drilling 2m/day | 2 | very_high | 0.9 | 0.5 | 3 | 0.5 | 1,000 | 100 |
This is a sample. Search the full ground improvement parameters dataset and 300+ more by creating a free account and accessing the database.
Get started for FREE