Numerical Approach to Appreciate the Interaction of Two Neighbouring Shallow Foundation on a Cohesive and Partially Cohesive Soil

Abstract

The program (cast3m) produced for us tables of values of stresses, displacements, images characterising stresses, displacements and deformations with their corresponding graphs. The results were presented as part of this study. It has been found that: two shallow closed foundations seriously affect the soil between them regardless of the soil type. Then, when the foundation is at same level in the different soil type and stress values are extracted in the zone of the cohesive soil (soft clay). A horizontal separation to width of foundation ratio was 0.7 and an influence equation was 0.333 if values of stresses are extracted from the partially cohesive soil (sandy clay). As per the vertical variation of the foundation in the different soil type. Independent of the soil type and the depth variation, a vertical separation to width of foundation ratio of 0.333 was observed. As the cohesion increases, the soil becomes denser which account for the high limit compressive stress compared to inferior values of cohesion. Finally, it is seen as a result of this research that the type of soil has a great rule to play as far as the interaction between two foundations is concern. An interaction led to failure when the foundation had a vertical gap between it that did not meet the above equation.