Fallah, Masoud, Mazaheri, Ahmadreza, Lajervardi, Hamid, Nasiri, Masoud. (1404). Shear Strength Behavior of Oil-Contaminated Bushehr Carbonate Sand. هنرهای کاربردی, 13(4), 177-189. doi: 10.22075/jrce.2025.35520.2180
Masoud Fallah; Ahmadreza Mazaheri; Hamid Lajervardi; Masoud Nasiri. "Shear Strength Behavior of Oil-Contaminated Bushehr Carbonate Sand". هنرهای کاربردی, 13, 4, 1404, 177-189. doi: 10.22075/jrce.2025.35520.2180
Fallah, Masoud, Mazaheri, Ahmadreza, Lajervardi, Hamid, Nasiri, Masoud. (1404). 'Shear Strength Behavior of Oil-Contaminated Bushehr Carbonate Sand', هنرهای کاربردی, 13(4), pp. 177-189. doi: 10.22075/jrce.2025.35520.2180
Fallah, Masoud, Mazaheri, Ahmadreza, Lajervardi, Hamid, Nasiri, Masoud. Shear Strength Behavior of Oil-Contaminated Bushehr Carbonate Sand. هنرهای کاربردی, 1404; 13(4): 177-189. doi: 10.22075/jrce.2025.35520.2180

Shear Strength Behavior of Oil-Contaminated Bushehr Carbonate Sand

Journal of Rehabilitation in Civil Engineering
مقاله 33، دوره 13، شماره 4 - شماره پیاپی 40، زمستان 2025، صفحه 177-189    اصل مقاله (897.95 K)
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
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.

تازه های تحقیق
  • Simple shear device a precise apparatus in understanding dynamic characteristics of soils.
  • Bushehr carbonate sand in Iran, as oil-rich country, is at risk due to oil contamination.
  • SEM analysis demonstrate the oil presence on the surface of Bushehr carbonate sand lead to slippery surface cause strength reduction.
کلیدواژه‌ها
Shear modulus؛ Damping ratio؛ Carbonate sand؛ Oil contamination؛ SEM
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