Dynamic Analysis of oil-contaminated Sand


Faculty of petroleum and mining engineering- Suez University, Suez, Egypt.

Mohamed N. ELGABRY, 
Faculty of Engineering, Cairo University, Giza.

Sherief MORAD
National Research Institute of Astronomy and Geophysics, NRIAG, 11421 Helwan, Egypt.


Soil contamination with oil has a significant impact on its engineering behavior. Due to the prevalence of oil contamination in soils around the world, many researchers have been interested in studying the effect of oil contamination on the mechanical properties of soil. However, the dynamic behavior of oil-contaminated soils has been studied by few or almost rare research. This article studies the dynamic behavior of oil-contaminated sand at different oil concentrations (0%, 2%, 4%, 8%) by weight of the soil. Plaxis 2D version 8 was used for dynamic numerical modeling of oil-contaminated sand by applying dynamic seismic waves to contaminated sand models. The results show that exposed earthquakes on oil-contaminated sand with different oil concentrations cause an increase in the settlement of the building constructed in the soil with increasing oil concentration in the sand. The vertical and horizontal strain of the contaminated sand increases with increasing oil contamination in the sand. Horizontal deformation of sand with low oil concentrations is affected more by the dynamic waves of the earthquakes than sand with high oil contamination concentrations.