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اولین کنفرانس ملی مهندسی ژئوتکنیک ایران
جزئیات رویداد
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  • numerical analysis of inclined micropiles behavior under seismic load

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 819
    • تعداد پرسش و پاسخ ها: 0
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     performing human made that lead to structures damages have occurred due to earthquakes and seismic load. studying the existing structures and the methods of retrofitting has an important role in earthquake-prone countries. nowadays, micropiles are commonly used in structures as a practical element to retrofit the seismic behaviors. in this paper, inclined micropiles under the earthquake load were analyzed by finite difference method using flac 3d. the approach considers an idealization for micro pile-soil system in three dimension model in order to evaluate logically their behaviors when the earthquake occurs. the micropile is assumed to be linear elastic and the soil is elastoplastic material. the micropile's failure is controlled by the mohr- coulomb criterion and all the micropiles were analyzed on the load of earthquake recorded in tabas, iran,1978 the results obtained from the numerical analyses were compared with available other data, indicating a satisfactory agreement. the results show that the inclined micropiles, due to being in the soil, give more hardness to it. so these cause less displacement in comparison with vertical ones. also the micropile-soil interactions in performance of inclined one were salient.

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