ABSTRACT
Many theories are available to find ultimate bearing capacity of two and three interfering strip footings loaded simultaneously with equal loads. Kumar and Ghosh obtained the bearing capacity of two interfering footings using the method of stress characteristics. The effect of footing carrying certain load on the behaviour of an adjacent footing has been studied experimentally by a few investigators. This chapter provides procedure to obtain the complete pressure-settlement and pressure-tilt characteristics of interring footings. This approach enables one to obtain the ultimate bearing capacity, settlement and tilt of the interring footings. The procedure adopted for the analysis of interfering footings on clay cannot be applied in sand directly as its modulus of elasticity varies with depth. Therefore, an empirical approach has been developed to obtain pressure-settlement and pressure-tiIt characteristics of interfering footings resting on sand, which has been found to yield satisfactory results. The constitutive relations of sand represented by hyperbola were established from consolidated drained triaxial compression tests.
