Vibro compaction piling compaction pile 377mm 260kW strengthen the foundation of shear capacity

How Vibroflotation Works

The process of vibroflotation is really simple as you will see in the following short description. The depth probe is located over the compaction point. Flushing water or air is expelled through jets in the tip of the probe. These induced injected vibrations will liquefy the soil temporarily allowing the probe a continuous penetration under its own weight.

Once the probe has reached the strata or poor soil, the water and air injections is stopped. At this point the soil is densified by the probe vibrations causing a crater around the vibrator, that should be backfilled with granular material.

Once the process has been completed, the probe is slowly withdrawn usually in stages of 12 inches. A cylindrical compaction zone is formed around the probe, and the achieved degree of compaction is indicated by an increase in oil pressure. The area around the probe is backfilled with granular material that will auto-consolidate, as the probe is begin brought up. The material used to backfill should be free of silt, gravel or crushed stone.

Vibroflotataion Techniques

Vibroflotation can be obtained by using three different techniques:

Vibro Compaction method- This method allows granular soils to be compacted. This method is only used to compact sandy soils.

Vibro Replacement method- The technique is used to replace poor or inadequate soil material by flushing out the soil with air or water and replacing it with granular soil. This can be used in various soil types such as clay and sandy soils.

Vibro Displacement method- This procedure is used with no or small amounts of water used during the technique. The probe is inserted into the soil and it will displace it laterally as the new soil column is being formed and compacted.

Vibroflotation Advantages

Vibroflotation is one affordable way to improve ground conditions when a deep layer of inadequate soil is found. The technique is so simple that will not require the delivery of additional materials or additional equipment other than the probe and the equipment that has it installed.