Geotechnical Engineering Journal of the SEAGS & AGSSEA ISSN 0046-5828
Vol. 51 No. 4 December 2020
Cyclic Parameters of Gas Oil Contaminated Fine Soils
Fatemeh. Mir Mohammad Hosseini, S. M. Mir Mohammad Hosseini, and Hamidreza Jahangard
ABSTRACT: Extensive demands of societies to different oil products and the presence of these materials in large sectors of industrial and non-industrial regions may lead to pollute the shallow soil layers. Due to numerous obstacles and high expenses regarding remediation of these sites, knowing its altered properties may provide an adequate basis to more reliable land use of these sites for engineering purposes. In the present research, extensive studies regarding dynamic properties of gas oil contaminated sites consisting of pure and mixed kaolinite clay with fine sand contaminated by different gas oil contents ( up to 16%) have been carried out on remolded soil samples. Based on the results, the presence of gas oil up to a certain content (8-10%) leads to an increase in the dynamic shear modulus and decrease in damping ratio of cohesive soils. The presence of some fine sand in clayey soils would cause the above gas oil content to increase to 12%.
KEYWORDS: Gas oil, Clayey soil, Shear modulus, Damping ratio, Contamination.
