Modified design procedures for bridge pile foundations subjected to liquefaction-induced lateral spreading

Development of LRFD Procedures for Bridge Pile Foundations in Iowa

Numerical modeling of liquefaction-induced lateral spreading

ABSTRACT: Liquefaction-induced lateral spreading of soils caused by strong shaking requires careful evaluation to be properly accounted for in geotechnical, and structural design of strategic infrastructure located in highly active seismic coastal regions. Although a large number of empirical and semiempirical models are available, there is still a lot of inconsistency in their predictions. In ...

Design of Pile Foundations

Approved for public release; distribution is unlimited. 1. Purpose. This manual provides information, foundation exploration and testing procedures, load test methods, analysis techniques, allowable criteria , design procedures, and construction consideration for the selection, design, and installation of pile foundations. The guidance is based on the present state of the technology for pile-so...

Numerical Simulation of Piles Subjected To Lateral Spreading and Comparison with Shaking Table Results

Pile foundations are relatively vulnerable to lateral loads. During liquefaction-induced lateral spreading, this vulnerability is particularly conspicuous due to a loss of strength and stiffness in the liquefied soil. A nonlinear effective stress analysis incorporating an elastoplastic constitutive model based on Finite Difference Method (FLAC2D program) was used to numerically simulate shake t...

Modified Sheet Pile Abutment for Low-Volume Road Bridge

Steel sheet piling, typically used for retaining structures in the United States, is a potential alternative for use as the primary component in low-volume road (LVR) bridge substructures. To investigate the viability of sheet pile abutments, a demonstration project was performed in Black Hawk County, Iowa. The project involved construction of a 40 ft single-span bridge utilizing axially loaded...