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Shear Strength Behavior of Oil-Contaminated Bushehr Carbonate Sand | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 33، دوره 13، شماره 4 - شماره پیاپی 40، بهمن 2025، صفحه 177-189 | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2025.35520.2180 | ||
| نویسندگان | ||
| Masoud Fallah1؛ Ahmadreza Mazaheri* 2؛ Hamid Lajervardi1؛ Masoud Nasiri3، 4 | ||
| 1Department of Civil Engineering, Arak Branch, Islamic Azad University, Arak, Iran | ||
| 2Department of Civil Engineering, Faculty of Engineering, Ayatollah Borujerdi University, Borujerd, Iran | ||
| 3Department of Civil Engineering, Faculty of Engineering, Kermanshah University of Technology, Kermanshah, Iran | ||
| 4Tisfun Artificial Intelligence Company, Kermanshah, Iran | ||
| تاریخ دریافت: 14 مهر 1403، تاریخ بازنگری: 28 آبان 1403، تاریخ پذیرش: 20 دی 1403 | ||
| چکیده | ||
| The crude oil leakage in soils could lead to an extreme reduction in resistance. It is significant for oil-rich countries, such as Iran, with several crude oil resources. The clean and oil-contaminated Bushehr carbonate coastal sand cyclic simple shear behavior is investigated. The clean and crude oil-contaminated sands were prepared with a relative density of 60%, and oil-contaminated samples were prepared using 2%, 4%, and 6% crude oil. Shear modulus (G) and damping ratio (D) rely on soil particle characteristics. Using 2% crude in Bushehr carbonate sand leads to an approximately 5% increase in shear modulus. Also, applying 4% oil in the specimens caused roughly 8% enhancement in the dynamic strength of Bushehr carbonate sand. Keeping the conditions constant, the effects of oil contamination on this carbonate sand were investigated using a cyclic simple shear apparatus. The results indicate that 6% crude oil contamination will lead to a decline in shear modulus (10.6%), a growth (27.6%) in the damping ratio, and a decrease (16.6%) in the friction angle of Bushehr sand in comparison to clean sands. However, 2% and 4% contamination led to static and dynamic resistance increase of Bushehr carbonate sand. The results indicated that using 2% and 4% crude oil caused a 12.5% and 20.8% increase in the static resilience of Bushehr carbonate sand, respectively. | ||
| کلیدواژه‌ها | ||
| Shear modulus؛ Damping ratio؛ Carbonate sand؛ Oil contamination؛ SEM | ||
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آمار تعداد مشاهده مقاله: 70 |
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