An investigation of the performance of soil-cement grids undernon-uniform loading

Soil-cement columns are a frequently used technique for subsoil improvement. The use of soil-cement grids to deal with the phenomenon of liquefaction and to reduce foundation settlement is one of the arrangements used in this method. The equivalent stiffness of the soil has increased with the improvement of the subsoil; this issue should be seen in the designs since the stiffness of the soil affects the behavior of the foundation. Transitioning the foundation's behavior from a rigid state to a flexible state amplifies the effect of non-uniform loads. Hence, the significance of non-uniform loading on the subsoil is enhanced by soil-cement grids requires analysis due to the existence of overlapping columns in this arrangement. In this research, utilizing finite element analysis, ۴ non-uniform load distributions with an eccentricity value less than B/۶ are applied to the grid-improved subsoil, and the possibility of generating tension by embedding two IPE elements is studied. The results show that the larger differential settlement, the greater the maximum tension generated in the IPE element, which is positioned in the low compressive load area

کلیدواژه ها:

soil-cement grids ، non-uniform load ، eccentricity of the load ، Tension ، Differential Settlement