ZCQ150 Earth Tech Vibro replacement -stone columns Vibroflot Equipment

Vibro-Replacement is the process of constructing stone columns using a vibratory probe (vibroflot). After the vibroflot penetrates to the desired depth of treatment, stone fill is deposited into the hole from the ground surface or through feed tubes to the tip of the vibroflot as it is withdrawn. Repeated raising and lowering ("plunging") of the vibroflot into the stone during withdrawal results in columns of stone measuring 30-42" (750-1100mm) in diameter. As with vibro-replacement, stone columns results in higher bearing capacities for shallow foundations, a reduction in total and differential settlement, increased safety factors for slope stability, and mitigation of liquefaction potential in seismically active areas. Vibro-replacement is often an economical alternative to deep foundations, especially when considering the added liquefaction protection in seismic areas.

Vibro Replacement is a method of constructing stone columns through fill material and weak soils, to improve their load bearing and settlement characteristics. Vibro Replacement provides an economic and technically sound solution to a wide range of geotechnical and foundation problems.