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نویسندگان مقالات پربازدید :
نهمین کنگره بین المللی مهندسی عمران
جزئیات رویداد
اینستاگرام تی پی بین
همایش ، رویداد ، ژورنال
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  • prediction of local scouring in braided rivers by stochastic modeling

    نویسندگان :
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    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/11/15
    • تاریخ انتشار در تی پی بین: 1390/11/15
    • تعداد بازدید: 611
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this paper, a new stochastic method for predicting scour hole depth in the future is presented in the braided river. the model procedure is as follows: 1- it is to apply regression equation with bed height as a dependent parameter and three independent parameters of maximum daily flow, and its corresponding sediment discharge and bed slope, these equations were derived at certain points along the river cross-sections over a specific time. 2- by applying observed data, sediment rating curve equation as well as a relationship between slope, water and sediment discharge were derived. 3- simulation of maximum monthly flow by arima stochastic modeling. 4- by substituting values obtained from step 3 into 2 and 1, respectively, river bed height was predicted along the cross-sections. - the values of the deepest bed height is selected maximum scour hole depth. yahagi river in japan was selected as a case study due to comprehensive and accessible data base. a comparison of observed data and predicted values indicate a seasonable agreement between them.

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