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During the jet grouting process, large volumes of high pressurized fluids injected into the soils will cause significant ground displacements, which may bring harmful impacts on surrounding environment. Therefore, it is essential to provide an accurate estimation of the ground displacement in the design stage. Based on multiple nonlinear regression (MNLR) and support vector regression (SVR), the prediction approaches are established, respectively. The column radius ( R  c ), Young’s modulus ( E ), and distance from column center to target point ( L  OA ) are selected as the input parameters, while the displacement of target point A at the radial direction ( δ  A ) is taken as the output parameter. Comparisons results on the prediction performance of ground displacements indicate that the MNLR-based approach has a better prediction effect. The design charts of the MNLR-based approach for predicting the ground displacement are created, which will be helpful for the practicing engineers to get a quick estimation.

Evaluation of Ground Displacements Caused by Installing Jet Grouted Columns Using Machine Learning Methods