Contact Interaction of Shallow Foundations with Nonhomogeneous Bases

摘要: In the fourth chapter results of boundary-element solutions spatial contact problems for complex-shaped punches, located on surfaces elastic nonclassical bases, are analyzed. The under consideration correspond to modeling interaction shallow foundations with nonhomogeneous bases. Contact pressure fields punches various shape an eccentric load (a problem a strongly inclined punch) obtained. influence non-uniform (over area) compressibility as well depth-dependent nonhomogeneity base deformational properties formation and development detachment zones, settlements slopes increase absolute values overturning moments is shown. An algorithm calculate boundaries section core rigid foundation plates from stress described. Some optimization solved parameter control in order provide uniform settlement foundation. As example application developed boundary element method, stress-strained state determined strip variable width. same model built taking into account nonlinear soil properties. A procedure characterization based direct punch test data considered. Finally, contains studies bending orthotropic situated performed by BEM combined finite difference method.