Khatami, Seyed Mohammad Hossein, Momenabadi, Hamed. (1401). A Full Coupled Numerical Method for Dynamic Response of Metro Tunnel Subjected to Surface Explosion. هنرهای کاربردی, 10(3), 21-36. doi: 10.22075/jrce.2021.23198.1501
Seyed Mohammad Hossein Khatami; Hamed Momenabadi. "A Full Coupled Numerical Method for Dynamic Response of Metro Tunnel Subjected to Surface Explosion". هنرهای کاربردی, 10, 3, 1401, 21-36. doi: 10.22075/jrce.2021.23198.1501
Khatami, Seyed Mohammad Hossein, Momenabadi, Hamed. (1401). 'A Full Coupled Numerical Method for Dynamic Response of Metro Tunnel Subjected to Surface Explosion', هنرهای کاربردی, 10(3), pp. 21-36. doi: 10.22075/jrce.2021.23198.1501
Khatami, Seyed Mohammad Hossein, Momenabadi, Hamed. A Full Coupled Numerical Method for Dynamic Response of Metro Tunnel Subjected to Surface Explosion. هنرهای کاربردی, 1401; 10(3): 21-36. doi: 10.22075/jrce.2021.23198.1501

A Full Coupled Numerical Method for Dynamic Response of Metro Tunnel Subjected to Surface Explosion

Journal of Rehabilitation in Civil Engineering
مقاله 2، دوره 10، شماره 3 - شماره پیاپی 27، پاییز 2022، صفحه 21-36    اصل مقاله (1.55 M)
نوع مقاله: Regular Paper
شناسه دیجیتال (DOI): 10.22075/jrce.2021.23198.1501
نویسندگان
Seyed Mohammad Hossein Khatami* 1؛ Hamed Momenabadi2
1Department of Civil Engineering, Technical and Vocational University (TVU), Tehran, Iran
2M.Sc. Graduated, Department of Civil Engineering, Semnan University, Semnan, Iran
چکیده
Terrorist explosion attacks have increased in recent years. Hand bombs are one of the means for terrorist operations because of their dangerous progressive damages. In this paper, a full coupled numerical method is adopted to study the dynamic response of a metro tunnel in the sandy loam. The numerical model is developed using LS-DYNA and will be able to present a realistic behavior for the physics of this phenomenon. In the current study, the ALE method has been used. The air, explosive charge, and soil are considered as ALE’s parts; while, the structure of the tunnel has Lagrangian mesh. Two paths have been studied in the longitudinal and the circular directions for assessing tunnel lining safety. In the free-field state, the accuracy of the model is verified by comparing the peak pressure and acceleration in the soil with the empirical predictions available in the literature. The safety assessment has been done according to explosion vibration criteria. The tunnel would not be safe, as per the PPV standard, under the condition of w=500kg and R=4m. Tunnel crowns are the most vulnerable areas while the peak particle velocity is 19cm/s with maximum permanent vertical deformation.
کلیدواژه‌ها
Surface Explosion؛ Metro tunnel؛ ALE method؛ LS-DYNA
مراجع
آمار
تعداد مشاهده مقاله: 1,071
تعداد دریافت فایل اصل مقاله: 892
دانشگاه سمنان
پیوندهای مفید
آمار
تعداد نشریات22
تعداد شماره‌ها724
تعداد مقالات10,459
تعداد مشاهده مقاله73,373,312
تعداد دریافت فایل اصل مقاله64,732,656