Jet Grouting

Jet grouting is a family of processes that employs combinations of high energy jets of air, water and grout to disaggregate, partially or fully replace and remix soil in situ.

Jet grouting is effective across the widest range of soil types of any grouting system, including silts and most clays. Because it is an erosion-based system, soil erodibility plays a major role in predicting geometry, quality and production. Cohesionless soils are typically more erodible by jet grouting than cohesive soils. Since the geometry and physical properties of the soilcrete are engineered, the properties of the soilcrete are readily and accurately predictable.

Range of Soil by Grouting Method

Jet grouting’s ability to construct soilcrete in confined spaces and around subsurface obstructions such as utilities, provides a unique degree of design flexibility. Indeed, in any situation requiring control of groundwater or excavation of unstable soil (water-bearing or otherwise) jet grouting should be considered.

Usually, jet grouting can be accomplished without disrupting normal facility operations. The recent development of small containerized, highly mobile support equipment has enabled starting jet grouting work on the first day of setup, greatly reducing mobilization and demobilization costs. Jet grouting can often result in construction schedule savings.

 

Application

– Tunneling
– Groundwater Control
– Underpinning
– Ground Retention
– Foundation Rehabilitation
* Jet grouting method is suitable for all soils (from clay to sand and gravels), capable of producing a wide variety of structures through a combination of columns, panels, half-columns