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نویسندگان مقالات پربازدید :
دومین کنفرانس ملی سازه و فولاد
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • relations between liquefaction resistance and shear wave velocity as affected by aging of sand deposits

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    • تاریخ ارائه: 1389/01/01
    • تاریخ انتشار در تی پی بین: 1389/01/01
    • تعداد بازدید: 781
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     since the shear wave velocity is determined by non-destructive experiments in the narrow range of small strain, some researchers cast doubt on the assessment of medium-to-large phenomenon, i.e. liquefaction, by means of it. however, some researchers confirm that the shear wave velocity is more likely to suit for distinguishing the liquefaction and non-liquefaction susceptibility of sand deposits by means of the chart determined the correlation between the liquefaction resistance and shear wave velocity, similar to the other types of indices, i.e. spt and cpt, in spite of its few limitations. on the other hand, such liquefaction chart has been proposed based on the liquefaction resistance of young holocene deposits, without taking account of “age”. in attempt to bridge the gap between those ideas, relations between liquefaction resistance and shear wave velocity of sand deposits are proposed under aging effect using a new-introduced index property, i.e. “cyclic reference strain” or “cyclic yield strain”, which is to differentiate between new and old sand deposits. that is, the smaller the cyclic yield strain, the less ductile response of soil and vice versa. it may be concluded, therefore, that this parameter can be employed as a criterion for taking into account the cementation or the effect of age in sandy soils.

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