A Study on Numerical Technique for the Hardened Grout When Grouting Method is Applied

摘要

Recently, pressure grouting is widely being used in construction site for strength improvement of ground and water proof, reinforcement and so on. It is necessarily required to estimate an appropriate injection pressure and injection time for economical and reasonable construction in the site through the size and shape of the hardened grout measured according to ground condition. However, sampling for the hardened grout is time-consuming and needs the high cost on preliminary test in the site. The system which could predict the size and shape of the hardened grout does not exist until now. Thus, numerical method based on VOF method with the same condition, silicate grouting material was used for the calibration chamber test with injection pressure, 50kPa, 100kPa and 150kPa, is applied and analyzed in this study. The results indicate that the numerical technique based on VOF method among CFD analysis is expected to be a basic study on behavior and solidification of pressure grouting.