Effect of Rail Corrugation on the Amount of Train Induced Vibrations near a Historical Building
Author(s):
Abstract:
The evaluation and control of the trains induced vibrations needs even more attention in the case of underground tracks which passes near to monuments and historical sites. The rail corrugations which occur due to the wheels impulse loads during the operation period of underground railway tracks, usually amplify the ground borne noise and vibration. In the current study, the mentioned phenomenon is simulated in Isfahan metro line 1 which includes twin tunnels and passes nearby of ChaharBagh School monument. In this matter, a three dimensional vehicle track interaction software (Adams/Rail) was used in conjunction with a geotechnical FEM software (Plaxis 2D). For this purpose, the vehicle-track interaction problem was solved considering rail corrugation in Adams/Rail part of MSC Adams® software and the amplified wheel load was imposed in a 2D plain strain model in Plaxis and consequently, the ground borne vibrations were extracted as vertical vibration velocity at a bench mark points (twin tunnel centerline and vicinity of Char-Bagh School) on the model surface. In this regard, sensitivity analyses were performed on train speed to show the corrugation effect on both increase in wheel dynamic impulse load and root mean square of vibration velocity at a bench mark points. The numerical results indicate that due to presence of rail surface corrugation, axle load increases with raise in train speed. In the worst case, when two trains run simultaneously with 90 Km/hr in twin tunnels, the maximum induced vibration at bench mark points are about 79.53 and 75.82 dB respectively.
Language:
English
Published:
International Journal of Advances in Railway Engineering, Volume:2 Issue: 2, Summer - Autumn 2014
Pages:
73 to 84
magiran.com/p1519836
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!