Settlement of a Structure Adjacent to Large Embankment Construction A Case History

Abstract

The use of finite element modeling is in order to estimate the foundation settlement for large embankment construction. This method is preferred over traditional techniques because finite element modeling can better estimate the stresses and deformations of subsurface soils in a more realistic manner. The numerical model chosen is the Hyperbolic Non-Linear Elastic (HNLE) model developed by Duncan et.al (1980). A series of laboratory triaxial tests were performed on specimens of Bonneville clay sampled from sites along I-15 in Salt Lake City, Utah to determine the HNLE properties of Bonneville clays. Finite element modeling was then performed to estimate settlement of a large embankment adjacent to an existing structure from the I-15 Reconstruction project. Surface settlement data from the I-15 Reconstruction Project are compared to those estimated by numerical modeling. The settlements compared well between finite element estimated and measured.