کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6772229 512774 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Prediction of railway ground vibrations: Accuracy of a coupled lumped mass model for representing the track/soil interaction
ترجمه فارسی عنوان
پیش بینی ارتعاشات زمین راه آهن: دقت یک مدل توده ای توده ای توجیه شده برای نشان دادن تعامل مسیر / خاک
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Recent advances in railway-induced ground vibrations showed that the track/soil interaction plays an important role in the low frequency range. This paper contributes to the numerical analysis of train/track/foundation dynamics by presenting the accuracy of a coupled lumped mass (CLM) model devoted to the railway foundations and to the track/soil coupling. Following a summary of the background and the advantages of the CLM model, the coupling strategy is quantified through two application cases. Firstly, the dynamic track deflection is calculated for different railway lines considering various degrees of complexities of foundations. Then, the foundation responses are compared depending on whether detailed coupling is introduced or not. The benefit of the proposed model is emphasized by presenting free-field ground vibration responses generated by a tram and a high-speed train, obtained by a revisited two-step prediction model developed by the authors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 69, February 2015, Pages 220-226
نویسندگان
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