Study on Mechanism and Verification of Columnar Penetration Grouting of Time-Varying Newtonian Fluids

Penetration grouting technology is an important technical means to improve the mechanical properties of gravel soil layers, and time-varying characteristics Newtonian fluid viscosity have influence on morphology effect penetration grouting. However, these are not considered in current research mechanism In this paper, by studying basic rheological equation fluids its dynamic law, motion discussed, theoretical analysis experimental research. Based this, columnar diffusion (TVNCPGDM) derived, application scope analyzed a experiment designed verify it. The results show that value radius calculated TVNCPGDM equation, closer than obtained without considering fluid, with 12.9% improvement accuracy. This shows derived can better reflect law column which changes time injected medium; for more line actual engineering demands. provide some guidance loose layers.