Riesienie spoluposobenia zakladu s podlozim pouzitim lagrangeovych multiplakatorov

The problem of foundation structure-soil interaction is solved by numerical methods. For the solution was chosen an approach based on decomposition of the total system into two disconnected substructures. The global problem is replaced by the subdomain equations of equilibrium subject to the compatibility of displacements across the common interface. The interaction forces between the substructures represent the Lagrange multipliers, which are dual with respect to the interface displacements. The resulting interface problem under the consideration of unilateral bonds, which is in general case indefinite due to the presence of floating foundation structure, is handled by PCPG algorithm. The correctness of originated computer program is demonstrated via the comparative example.