Abstract

By the term improvement or reinforcement of a material, we mean the treatment of this material aimed at improving its geotechnical properties (strength, corrosion, permeability, compressibility, porosity, physical characteristics, mechanical properties, etc.). The basic strategy of all these techniques is to find the most suitable, effective and economical method to improve the soil so that its mechanical properties become similar to those of soft rocks, increasing the safety of geotechnical works. Improvement of the properties and mechanical behavior of soils can be carried out in-situ by carrying out an appropriate injection program. There are several criteria by which injection methods can be classified and they relate to the type of injection, the application cases, the cannula of injection sites and the sequence of manufacturing steps. Significant research efforts aimed at predicting injectability have been made in recent years using analytical and numerical methods to approximate the phenomenon. The aim is to simulate the injection process and to develop equations governing the process

Keywords:Permeation grouting; Cement suspension; Simulation models; Diffusion; Dispersion; Filtration