To investigate soil-structure interaction, a series of dynamic experiments were performed on full-scale mat foundations (Han, 1989) and on full-scale piles (Han and Novak, 1989, 1992). The computational method has been applied to important engineering practice (Han, 1987, and Han, et al, 1999). Soil layering, a possible weakened zone (see sketch) around a foundation, and pile-soil-pile interaction are all taken into account. The stiffness of the supporting soil along with damping constants needed for the analysis and evaluated in the program for surface foundations, embedded foundations, and pile foundations. The foundation stiffness and damping constants are also returned for possible use in soil-structure interaction analysis. The foundations (or caps on piles) are assumed to be rigid, and all six degrees of freedom are considered as coupled. Such loadings can be produced by rotating or reciprocating machines, earthquake, wind, blast, sea waves, and other sources. The program yields the dynamic response of both shallow and deep foundations under harmonic, transient, and random loadings. DYNAN is based on the improved Novak’s method where a non-reflective boundary is formed between the near field and the far field to account for the mass of soil in the boundary. The DYNAN program follows these guidelines. When calculating the micropile bearing capacity, the program verifies both the root and shaft.Ī powerful computer program should be founded on advanced theory and be verified by tests and practice. Deep Foundations Retaining Walls Slope Stability Slope Stability Analysis This program is used for verification of steel tube micropiles. This structural engineering tool helps engineers to design spread, combined, and strap concrete foundations. ASDIP FOUNDATION is a footing design software.
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