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نهمین کنگره بین المللی مهندسی عمران
جزئیات رویداد
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  • investigating the effect of the shapes of in-filled concrete trenches on the railway induced vibrations

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    • تاریخ ارائه: 1390/11/15
    • تاریخ انتشار در تی پی بین: 1390/11/15
    • تعداد بازدید: 757
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    • شماره تماس دبیرخانه رویداد: -
     development of rail transportation with rely on increasing speed and axle load in recent years, has been encountered with significant progresses. if the induced noise and vibration due to rail way system wasn’t controlled, it would effect significantly on the residential areas and other sensitive places. although in the technical literature the inserting the in- filled concrete trenches on both sides of the rail lines has introduced as one of the strategies to reduce ground born vibrations, but the avalibale studies shows that the effect of trench shape on the vibration reduction hasn’t been investigated. so in the present study, three types of rectangular shape, v-shape and step-shape in-filled concrete trenches have been compared in terms of efficiency with equal areas. for this purpose, a series two-dimensional dynamic analysis were perfomed to model the bahavior of ballasted railway under harmonic load with abaqus as finite element based computer code. the numerical results of the investigated analyses indicate that the step shaped trenches have the highest performance for reduction of train-induced vibrations.

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