Jet grouting has been used in the construction industry for ground improvement purposes for the last two decades. This technique is especially useful in places with soft soils or restricted access, where conventional excavation techniques are impractical. Jet grouting effectively creates underground walls or barriers for water control or as part of an underground structure. Grouting columns or walls is achieved by eroding soil with cement grout, water jets, or compressed air, while grout pipe is either self-drilled or placed into a predrilled hole. Jet grouting’s ability to construct soilcrete in limited spaces and around subsurface obstacles, such as utilities, offers unique design flexibility. Jet grouting is frequently the recommended option when controlling groundwater or excavating unstable soil because it offers a cost-effective way to guarantee the long-term stability of structures constructed on site.
Applications for jet grouting include the following:
- Densification of granular soils
- Raising settled structures
- Settlement control
- Underpinning of existing foundations
- Excavation support
- Protection of existing structures during tunneling
- Liquefaction mitigation
- Water control
Advantages of jet grouting:
Grouting is particularly useful in areas with loose or fractured soils, where it can help to stabilize foundations, reduce water infiltration, and prevent settlement. It is commonly used in the construction of tunnels, dams, and foundations for buildings and bridges. Fortesol’s expertise in grouting ensures that the process is carried out with precision, providing a reliable solution for improving soil strength and stability in challenging conditions.
- No need for removal and replacement
- Effective for underpinning and protecting existing structures
- Easy to access and operate within constrained space
