Experimental investigation of adding clay and PAM on scouring reduction near bridge piers with river materials removal

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REZAIE MEHDI; DANESHFARAZ RASOUL; DASINEH MEHDI

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Paper Information

Journal: JOURNAL OF HYDRAULICS Year:2018 | Volume:13 | Issue:3 (133) Page(s): 59-70

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Title

Experimental investigation of adding clay and PAM on scouring reduction near bridge piers with river materials removal

Author(s)

REZAIE MEHDI | DANESHFARAZ RASOUL | DASINEH MEHDI | Issue Writer Certificate

Keywords

ScourQ2

ClayQ1

PAMQ1

PitQ1

Bridge piersQ1

Abstract

Scouring damage around Bridge piers is considered as a foremost detriment and researchers proposed hydraulic or non-hydraulic treatment to solve Scouring problems. In this research, a new eco-friendly method has been proposed to reduce not only length and depth of Scouring near circular Bridge piers, but also volume of Pits created by removal of river bed materials. Since Clay and cationic poly acryl amid (PAM) have a good compatibility with the riverine system, the sediments of the mobile bed was combined with two different grains size included %10 Clay and %5, %10 PAM injected into Clay. Their effects on Scouring reduction in four different discharge and three different Pit depths were investigated. The results indicate that the enhancing effects of adding Clay and PAM in reducing the length and depth of Scouring. The best performance in the present research is observed for the mixture of Clay and PAM %10 with Scouring depth was %27. 24 and %46. 78 for grain size 0. 6mm and to %26. 9 and %45. 18 for grain size 0. 15mm. The Scouring length for both grain sizes shows respectively %17. 73 and %31. 22 reduction. This investigation shows that the utilization of Clay and PAM has a positive effects on reducing Scouring and its treatment in rivers, while being compatible with the ecology of the system, it will have an acceptable performance in reducing the depth and Scour length.

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APA: Copy

REZAIE, MEHDI, DANESHFARAZ, RASOUL, & DASINEH, MEHDI. (2018). Experimental investigation of adding clay and PAM on scouring reduction near bridge piers with river materials removal. JOURNAL OF HYDRAULICS, 13(3 (133) ), 59-70. SID. https://sid.ir/paper/124206/en

Vancouver: Copy

REZAIE MEHDI, DANESHFARAZ RASOUL, DASINEH MEHDI. Experimental investigation of adding clay and PAM on scouring reduction near bridge piers with river materials removal. JOURNAL OF HYDRAULICS[Internet]. 2018;13(3 (133) ):59-70. Available from: https://sid.ir/paper/124206/en

IEEE: Copy

MEHDI REZAIE, RASOUL DANESHFARAZ, and MEHDI DASINEH, “Experimental investigation of adding clay and PAM on scouring reduction near bridge piers with river materials removal,” JOURNAL OF HYDRAULICS, vol. 13, no. 3 (133) , pp. 59–70, 2018, [Online]. Available: https://sid.ir/paper/124206/en

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