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...

Abstract Effective stress analysis using liquefaction parameters is often employed for the numerical of soil liquefaction. However, to best our knowledge, that simultaneously reproduce strength curve and effective path have not been reported date. Herein, we propose a new method estimate model used in analysis: pore pressure curves obtained from laboratory tests are as targets inverse analysis....

PURPOSE To investigate the effect of lens density on liquefaction time by using liquefaction device (AquaLase, Alcon Laboratories, TX, U.S.A.). METHODS Cataract surgery using AquaLase was performed on 47 eyes. With a Scheimpflug camera, the density and thickness of lens were measured in eye of each patient preoperatively. During surgery, liquefaction time and total number of pulses were recor...

A process was explored for continuous enzymatic liquefaction of corn starch at high concentration and subsequently saccharification to glucose. The process appears to be quite efficient for conversion of starch to glucose and enzymatic liquefaction and should be readily adaptable to industrial fermentation processes. Preliminary work indicated that milled corn or other cereal grains also can be...

A better understanding of the wave-induced pore pressure accumulations (i.e., residual pore pressure) is a key factor in the analysis of the wave-induced liquefaction in marine sediments. In this paper, the residual mechanism of nonlinear wave-induced pore water pressure accumulation in marine sediments is examined. Unlike previous investigations, the second-order Stokes wave theory is consider...

A coupled stress-flow finite element procedure, based on dynamic Biot equations, was used to analyze the behavior of pipe buried in liquefiable soil. The governing equations, soil constitutive model, finite element discretization and solutions were described. The results of analysis were compared with two cases of dynamic centrifuge test of soil deposit and pipe conducted at 30-g acceleration f...

The ground in Saemangeum has a high water level and is mostly composed of silty soil sand, which makes it susceptible to liquefaction seepage effects. To investigate the seismic response geotextile tube-reinforced embankment shallow foundations laid on liquefiable soil, simple spring type shaking table apparatus was developed. variation acceleration shear stress-strain relationship were investi...

An experimental study was carried out to investigate seabed-pipeline interactions with regard soil liquefaction. For a high proportion (30 60%) of fine sediment, four groups tests were configured reproduce liquefaction around pipelines for different initial pipe depths, densities and wave conditions (wave height period). The focused on verifying the theoretically computed areas failure by analy...

Soil-liquefaction-related hazards can damage structures or lead to an extensive loss of life and property. Therefore, the stability safety against soil liquefaction are essential for evaluation in earthquake design. In practice, simplified analysis procedure associated with numerical simulation is most used approach evaluating behavior effectiveness mitigation plans. First, occurrence evaluated...

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...