Development of a New In-place Cement-Mixing Method by High-Pressure Injection

Jet grouting technology is examined and developed as one of soil liquefaction countermeasure methods. The examination of the mechanism of jetting is performed to increase the diameter of stabilized soil columns and also to produce arbitrary shapes of improved soil structures. The in situ performance verification are also performed to verify arbitrary shapes and large diameters of stabilized soil columns, mechanical properties of stabilized soil columns, and real-time construction management.