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Farahani, Atiye, Zanjirani Farahani, Hosein. (1404). Falling Weight Deflectometer Test Oriented Overlay Thickness Design: Case Study. نشریه هنرهای کاربردی, 14(1), -. doi: 10.22075/jrce.2025.34132.2089
Atiye Farahani; Hosein Zanjirani Farahani. "Falling Weight Deflectometer Test Oriented Overlay Thickness Design: Case Study". نشریه هنرهای کاربردی, 14, 1, 1404, -. doi: 10.22075/jrce.2025.34132.2089
Farahani, Atiye, Zanjirani Farahani, Hosein. (1404). 'Falling Weight Deflectometer Test Oriented Overlay Thickness Design: Case Study', نشریه هنرهای کاربردی, 14(1), pp. -. doi: 10.22075/jrce.2025.34132.2089
Farahani, Atiye, Zanjirani Farahani, Hosein. Falling Weight Deflectometer Test Oriented Overlay Thickness Design: Case Study. نشریه هنرهای کاربردی, 1404; 14(1): -. doi: 10.22075/jrce.2025.34132.2089

Falling Weight Deflectometer Test Oriented Overlay Thickness Design: Case Study

Journal of Rehabilitation in Civil Engineering
مقاله 15، دوره 14، شماره 1 - شماره پیاپی 41، اردیبهشت 2026
نوع مقاله: Regular Paper
شناسه دیجیتال (DOI): 10.22075/jrce.2025.34132.2089
نویسندگان
Atiye Farahani* 1؛ Hosein Zanjirani Farahani2
1Assistant Professor, Department of Civil Engineering, Technical and Vocational University (TVU), Tehran, Iran
2Assistant Professor, Department of Civil Engineering, Tafresh University, Tafresh, Iran
تاریخ دریافت: 25 اردیبهشت 1403،  تاریخ بازنگری: 25 دی 1403،  تاریخ پذیرش: 17 دی 1403 
چکیده
Falling Weight Deflectometer (FWD) can evaluate the assessment of structural conditions of pavements that require rehabilitation. Fifteen different pavement sections have been selected that six sections have located in Qom-Kashan Freeway, Iran and nine sections have located in Kashan-Qom Freeway, Iran to conduct FWD tests. FWD data have been analyzed to determine and monitor the structural adequacies of existing pavement sections includes the pavement deflection and load chart, the average deflection chart of seven geophones, and the calculated overlay thickness diagram for each station of each section. The results indicate that the average deflection for Direction: Qom-Kashan, is 6.7% less than Direction: Kashan-Qom. In this paper, the structural conditions of existing pavements have been assessed, and subsequently required overlay thickness values have been recommended from critical pavement responses computed from FWD field deflections. The results indicate that the surface of the pavement for Direction: Kashan-Qom needs 6.1% more overlay thickness than Direction: Qom-Kashan. Also, the Structural Condition Index (SCI) that is widely used on network and preliminary project level investigations has been calculated. Furthermore, a comparison is presented between calculated SCI before and after applying overlay and the effect of this index value on the pavement performance.
کلیدواژه‌ها
Falling weight deflectometer (FWD)؛ Overlay thickness؛ Pavement design؛ Structural condition index (SCI)
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تعداد مشاهده مقاله: 52


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