Discussion and practice on the method of selecting multi-parameter in high pressure jet Grouting Engineering

Because of High-Pressure Swing Spraying Grouting Engineering Test needs more parameters to define, and the tests of construction unit are simple and bold, the engineering cost is very high. Through analyzing the internal relations between different parameters and comparing their importance by the introduction of the hydraulic formulas based on the South-to North Water Transfer Project, this paper illustrates the methods of choosing the parameters in the swing spray test and performing a swing jet grouting test and selecting the optimum parameters. The test and analysis have shown that the method of analyzing the parameters is rational and can effectively reduce the cost of the project, and at the same time, this method provides a test procedure for the other large jet projects.