Grouting pressures shall be sufficiently in excess of confining overburden pressures to adequately compact the soil and fill all voids in the soil beneath the indicated areas. In no cases, however, shall the pressures be high enough to cause structural damage to the building.
Where drilling indicates the presence of small voids, grouting shall begin at ledge rock elevation and continue upward in 12 inch maximum increments.
Soil stabilization by compaction grouting is to improve supporting characteristics of the silty clay sub soils, and prevent any further settlement from occurring within the area indicated on the Contract Drawings.
- Preserve Vegetation
- Hydraulic Mulch
- Soil Binders
- Straw Mulch
- Rolled Erosion Control Products
- Wood Mulch
- Improves the strength and durability.
- Stabilization of sub-grade to increase CBR.
- Reductions in bulk dig quantities.
- This technique is a cost effective alternative to importing aggregates for both temporary and permanent works.