What is Vacuum Excavation
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- Created: Wednesday, 15 November 2017 15:49
- Written by Lareina Taing
Vacuum excavation or “soft dig” is a non-mechanical and less invasive method of excavation. A blast of air or water is first directed into the dig site to loosen soil and break up any large materials. It is categorized as air or hydro vacuum excavation depending on how the soil is broken down. An air vacuum hose is then used to remove the debris from the hole and transfer it to a specially designed tank. Stored spoil can be transported elsewhere or, if dry, re-used as fill. Hydro excavation prevents the re-use of wet material for refilling the hole.1