History of Jet Grouting in Ground Improvement
Among all soil stabilization and ground improvement techniques, jet grouting is widely recognized by engineers as one of the most versatile and adaptable methods.
This technique enables engineers to:
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Reinforce soil in-situ
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Create watertight cut-off walls against groundwater
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Provide structural rigidity for excavation support
Notably, jet grouting produces the highest soil-concrete strength compared to other ground improvement systems. However, its technical complexity makes it one of the most challenging methods to design and execute. A failure in any stage—design, mixing, or execution—can compromise the entire result.
The Origins of Jet Grouting: Pressurized Injection Technique
The concept of hydraulic soil erosion for excavation likely dates back centuries, especially in mining industries, where historical records suggest its use during the Middle Ages.
The first patent for jet grouting (pressurized injection) was filed in the UK during the 1950s.
However, major advancements were made in Japan, where the method evolved significantly. Originally, jet grouting aimed to boost efficiency in chemical grouting by eroding unmodified (and partially modified) soils and replacing them with cementitious grout to improve impermeability.
This process also allowed displaced soil to be brought to the surface, stored, and substituted with impermeable materials.
Early Applications of Jet Grouting
Initially, jet grouting was used to construct **thin
