The definition of rigid floating piles in engineering applications remains ambiguous. This paper develops a numerical model piled embankments and the modeling method is verified through cases. Utilizing this model, critical bearing capacity foundation for firstly determined to be approximately 150 kPa. Subsequent parametric studies show that soil arching embankment begins occur when ratio heigh...

A direction-length framework is a pair (G, p), where G = (V ;D,L) is a ‘mixed’ graph whose edges are labeled as ‘direction’ or ‘length’ edges, and p is a map from V to R for some d. The label of an edge uv represents a direction or length constraint between p(u) and p(v). Let G be obtained from G by adding, for each length edge e of G, a direction edge with the same end vertices as e. We show t...

Recent studies have highlighted the potential benefits of inelastic foundation response during seismic shaking. According to an emerging seismic design scheme, termed rocking isolation, the foundation is intentionally under-designed to promote rocking and limit the inertia transmitted to the structure. Such reversal of capacity design may improve the seismic performance, drastically increasing ...

Motivated by the observed (successful and unsuccessful) performance of numerous structures on top of, or immediately next to a normal fault that ruptured during the Kocaeli 1999 earthquake, this paper: (i) develops a two-step finite element methodology to study the propagation of a fault rupture through soil and its interplay with the foundation–structure system, denoted hereafter “Fault Ruptur...

Foundations may undergo severe distress during an earthquake. One such example of foundation failure involving toppling of apartment blocks due to liquefaction during the 1964 Niigata Earthquake is presented in Figure 1. Earthquake effects on shallow and deep foundations are accounted for by designing them structurally to provide necessary strength and ensure serviceability. Strength considerat...

We characterize the stable theories T for which the saturated models of T admit decompositions. In particular, we show that countable, shallow, stable theories with NDOP have this property. Partially supported by NSF Grants DMS 0071746 and DMS 0300080. Partially supported by U.S.-Israel Binational Science Foundation Grant no. 2002323 and Israel Science Foundation Grant no. 242/03. Publication n...

Through conducting a comparative experimental study of small-aspect-ratio isolated structure models on multi-layered soft soil foundations and rigid foundations, this paper investigates the influence soil–structure interaction (SSI) effects seismic response structures foundations. An energy balance equation for systems considering SSI is proposed, impact dissipation analyzed in depth. The analy...