Tianjin binhai new area has a large of dredger fill groud, And it is easy to produce seismic settlement and saturated sand liquefaction under earthquake action. We simulate subsidence state Dredger Fill the 50-year probability exceedance 10% 2% level by using Finn constitutive model in certain soft foudition area. The results show that: Both are transition process from effective stress pore wat...

Focusing on soil liquefaction, the seismic records during the Niigata-ken earthquake in 1964, the southern Hyogo prefecture earthquake in 1995 and the 2011 off the Pacific coast of Tohoku earthquake are analyzed by the non-stationary Fourier spectra. The shift of dominant frequency in the seismic record of Kawagishi-cho during the Niigata-ken earthquake is evaluated based on the time-variant pr...

The possibility of servicing lifelines such as highways, railways, pipelines, and tunnels is great social importance. characteristic that separates the buried pipeline from other structures its dimensions are very long compared to dimensions. Ground vibrations caused by earthquakes, construction activities, traffic, explosions, machinery can damage these structures. Lifeline integrity be compro...

Bridges are a part of vital infrastructure, which should operate even after disaster to keep emergency services running. There have been numerous bridge failures during major past earthquakes due liquefaction. Among other categories failures, mid span collapse (without the failure abutments) pile supported bridges founded in liquefiable deposits still observed most recent earthquakes. This mech...

In order to satisfactorily reproduce the Soil-Structure Interaction (SSI) effects under earthquake loading, it is often necessary to model a large domain of the soil surrounding the structure of interest. High spatial/temporal resolution is another challenge in analyzing these models. A new parallel nonlinear finite element program, ParCYCLIC, is employed to study such high fidelity large-scale...

due to its critical impact and significant destructive nature during and after seismic events, soil liquefaction and liquefactioninduced lateral ground spreading have been increasingly important topics in the geotechnical earthquake engineering field during the past four decades. the aim of this research is to develop an empirical model for the assessment of liquefaction-induced lateral ground ...

Abstract This paper investigates the settlement in a pavement due to soil liquefaction. Four 1-g shaking table tests were performed on saturated sand bed-pavement model understand factors affecting liquefaction-induced settlements and their relation thickness width. All with base acceleration of 320 gal laminar box. The revealed that total reduced increase thickness. same but different width sh...

This study proposes to use a method of nonlinear, nonstationary data processing and analysis, i.e., the Hilbert-Huang transform (HHT), to explore and characterize the signatures of soil nonlinearity and/or liquefaction from earthquake ground recordings. The paper first summarizes symptoms of soil nonlinearity and liquefaction shown in earthquake ground motion recordings. It then reviews the Fou...