Ground Improvement Parameters: soil_mixing
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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| soil_mixing | loose_sand | CPT_and_core_sampling | 0.5 | 0.15 | 8 | 3 | 0.8 | 0.4 | low | 20 | yes | 150 | 15 | Deep soil mixing in loose sands; effective for liquefaction mitigation and excavation support; mixing energies higher; binder dosage 150-250 kg/m3 cement; grid/lattice patterns for earthquake mitigation per FHWA; production higher in granular soils | 10 | high | 0.8 | 0.4 | 2.5 | 0.8 | 400 | 100 |
| soil_mixing | marine_clay_high_salinity | UCS_testing_after_28_days | 0.55 | 0.2 | 5 | 2 | 0.85 | 0.45 | medium | 15 | yes | 80 | 8 | High salt content inhibits cement hydration; cement dosage must be increased 20-30%; slag or fly ash additions beneficial; strength development slower; in-situ seawater mixing with fresh cement acceptable; offshore deep mixing effective with specialized equipment | 7 | high | 0.7 | 0.3 | 2.5 | 0.9 | 400 | 80 |
| soil_mixing | soft_clay_Cu_lt_50kPa | UCS_testing_and_core_sampling | 0.6 | 0.2 | 5 | 2 | 0.8 | 0.4 | medium | 20 | yes | 100 | 10 | Wet deep soil mixing (WDSM) with cement/lime binders; unconfined compressive strength 0.5-5 MPa; modulus E50~300*qu (FHWA-HRT-13-046); area replacement 20-60% for grid or lattice patterns; liquefaction mitigation effective as stiff inclusions reduce shear strains; UDS gain 100-500% (column itself); production 8-12m/day per rig; curing 28 days for full strength | 8 | high | 0.7 | 0.3 | 2.5 | 0.8 | 500 | 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