Survivability foundation plays an important role in building resistance to the progressive destruction. This should be taken into account in the relevant calculations. Experimental studies of free-standing foundations have identified stages of structural collapse. Determine the ratio of the breaking load and the calculated bearing capacity. Reserve of vitality depends on the foundations of a large number of factors: the geometric characteristics of the structure, the design features, the strength characteristics of the materials, the eccentricity of external forces and others.