09-10-2012, 11:02 AM
GRADING AND SITE IMPROVEMENT METHODS
Compaction-II.ppt (Size: 2.78 MB / Downloads: 44)
COMPACTION GROUTING
Install grout pipes using drilling/driving techniques
Interject mortar-like grout through pipes – displaces the surrounding soil… repeat!
Injection in stages continues…
Grouting stiffens and strengthens the soil layer by increasing its density, increasing the lateral stresses, and acting as a reinforcement.
LIME STABILIZATION
A truck sprays lime powder uniformly on the ground surface after it has been graded, but before it is compacted. The area is divided into sections by the wooden stakes to help guide the operators. The amount of lime depends on the soil characteristics, but is typically a few percent of the treated soil's dry weight.
This self-loading scraper is equipped with mixers inside its bucket. It scrapes up soil that has already been sprayed with lime, mixes it within its bucket, and then spreads it back over the ground surface.