Liquefaction behavior evaluation of a multi-layered site with fines-dominated soils

Kargar, Pourya; Osouli, Abdolreza; Kumar, Sanjeev

doi:10.1016/j.soildyn.2023.107875

Cited by 4 publications

(1 citation statement)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Understanding the mechanics of liquefaction remains a key focus in soil dynamics and geomechanics [1,2]. Kargar et al [3] introduced an advanced nonlinear dynamic analysis (NDA) method for predicting liquefaction mechanisms and manifestations. Khashila et al [4] developed a strain/energy-based pore pressure model based on cyclic strain-controlled tests with results similar to those of the Finn model.…”

mentioning

confidence: 99%

Further development of distinct lattice spring model with Finn model for liquefaction analysis

Li,

Shoaib,

Wei

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The hazards associated with sand liquefaction induced by dynamic events are significant. The study of the dynamic stability in hydraulic structures presents an interdisciplinary challenge encompassing both geotechnical engineering and engineering seismology. This study was based on an actual hydraulic engineering project. To effectively predict changes in pore pressure caused by earthquakes, we integrated the Finn constitutive equations into a distinct lattice spring model (DLSM). In this study, the code was customized to accommodate multiple materials simultaneously participating in the calculations, thus simplifying the solution to complex engineering problems. Initially, we validated the DLSM’s liquefaction equation by comparing it with the finite difference method. Subsequently, we conducted a comparative analysis of liquefaction in an engineering project of sluice using the enhanced DLSM. Our analysis indicates that untreated sand has a severe risk of trending toward liquefaction, presenting a hazard to hydraulic engineering. The incorporation of a gridded concrete framework significantly mitigated the seismic-induced pore pressure accumulation and irreversible deformations caused by vibrations. A comparative study showed that concrete retaining walls with concrete supports are more effective at reducing liquefaction hazards and minimizing irreversible deformations in engineering structures.

show abstract

mentioning

confidence: 99%