Control of Scour Around the Piles with Using Cable and Collar at the River

نویسندگان

  • Bordbar, Amin Department of Water Science and Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
  • Heidarnejad, Mohammad Department of Water Science and Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
  • M Delf Lovimi, Mahmmud Department of Water Science and Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
  • Masjedi, Alireza Department of Water Science and Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
چکیده مقاله:

In this study, in order to examine the joint of the cable and the collar in control of scour around the bridge piles, experiments were carried out in a rectangular plexiglass flume as a direct path. The experiments were carried out using three different cable diameters, three different thread angles and three rounds of the cable threaded at a steady current in clear water. The results of this study showed that, installing a cable and collar around the base of the cylinder is an effective factor in reducing the depth of scouring around it. Also, in all conditions of use of cable and collar, compared with the without collar mode, it increases the percentage of reducing scour depth around the cylindrical base. The use of collar on average reduces scour depth by about 43 percent compared to without collar condition. Also, the maximum scour depth in cable and collar conditions at a thread angle of 15 degree, a diameter ratio of 0.1 percent and triple threaded was about 63 percent.

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عنوان ژورنال

دوره 14  شماره 49

صفحات  40- 49

تاریخ انتشار 2020-06

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