TY - JOUR ID - 82478 TI - Experimental Study for Protection of Piers Against Local Scour Using Slots JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Obied, N. A. AU - Khassaf, S. I. AD - Department of Civil Engineering, University of Basrah, Basrah, Iraq Y1 - 2019 PY - 2019 VL - 32 IS - 2 SP - 217 EP - 222 KW - Slot KW - Scour Reduction KW - Circular pier KW - Dimensional Analysis DO - N2 - The most important causes of bridge failure are local scour. In this study, laboratory experiments were conducted to investigate the effectiveness of slot as a protection device in reduction of depth of scour at cylindrical piers under clear water flow conditions. The development time of scour depth at the circular pier with and without a slot as a protection device was conducted. The experiments focused on the effect of using different lengths of slot, calculating efficiency and deriving a suitable equation. It was observed that the scour depth decreases as the size of slot length increases; and also the maximum reduction in scour depth equals to 49%. The technique of dimensional analysis was used, and based on laboratory results an empirical formula was derived by using IBM SPSS statistics v24 software. The coefficient of determination (R²) was determined to be (0.961), There was a good agreement between the predicated and observed data. UR - https://www.ije.ir/article_82478.html L1 - https://www.ije.ir/article_82478_467bbcebecf8ff0859996006ba1535f5.pdf ER -