Numerical investigation of Liquefaction Mitigation in-Sandy Soils under Earthquake Loading Using Vertical Gravel Drains.

Authors

Marawan M. Shahien M. Shahein, Prof. of Geotechnical Engineering, Faculty of Engineering, Tanta University, EgyptFollow
ahmed nasr, ahmed.nasr@f-eng.tanta.edu.egFollow
Baher Mohamed Abd El Fattah, Baher Mohamed Abd El FattahFollow

Abstract

Liquefaction is one of the most dramatic defects of granular soil. This phenomenon is mostly observed when loose sand is subjected to a dynamic load or earthquake. In this study, the liquefaction that affected the loose soil evaluated, and some recommendations are introduced. (2-D) Numerical analysis using Plaxis (8.2) was conducted to simulate the behavior of the loose soil under dynamic loads. The studied model was carried out on multi-layers soil supported by stone columns subjected to dynamic loads. It was found that stone columns enhanced the soil behavior and reduced the damage that occurred. Liquefaction of the loose soil could be constrained by increasing the shearing parameters of the soil. The damages of a dynamic load are time-dependent, so the corresponding damage increases as the time of the applied dynamic load increases. Moreover, the many straining actions are evaluated, and a comparative study is introduced, such as access pore water pressure, total vertical displacement, deformation of soil, and velocity.

Recommended Citation

Shahien, Marawan M. M. Shahein; nasr, ahmed; and Abd El Fattah, Baher Mohamed (2024) "Numerical investigation of Liquefaction Mitigation in-Sandy Soils under Earthquake Loading Using Vertical Gravel Drains.," Journal of Engineering Research: Vol. 8: Iss. 3, Article 10.
Available at: https://digitalcommons.aaru.edu.jo/erjeng/vol8/iss3/10