Principle: Compaction grouting, one of the few US born ground improvement techniques, was developed by Ed Graf and Jim Warner in California in the 1950s. This technique densifies soils by the injection of a low mobility, low slump mortar grout. The grout bulb expands as additional grout is injected, compacting the surrounding soils through compression. …
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Principle: Vibro compaction (VC), also known as Vibroflotation was developed in the 1930s in Europe. The process involves the use of a down-hole vibrator (vibroflot), which is lowered into the ground to compact the soils at depth. The method is used to increase bearing capacity, reduce foundation settlements, reduce seismic subsidence and liquefaction potential, and …
Principle Dynamic compaction (DC), also known as dynamic deep compaction, was advanced in the mid-1960s by Luis Menard, although there are reports of the procedure being performed over 1000 years ago. The process involves dropping a heavy weight on the surface of the ground to compact soils to depths as great as 40 ft or …
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Introduction Ground improvement is defined as the enhancement of inplace properties of the ground by controlled application of technique suited to the subsoil conditions. Ground improvement techniques are used increasingly for new projects to allow utilization of sites with poor subsurface conditions. Ground Improvement techniques are often used to improve sub soil properties in terms …
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