Efficacy of the Combined Use of Bed Sill and Sacrificial Piles to Control Local Scour around Circular Bridge Piers

Table 1

A summary of the results of the combined countermeasures.

Researchers	Combined countermeasures	(%)
Gaudio et al. [13]	Submerged vanes	12.4
	Bed sill	17.2
	Sacrificial piles	32.2
	Collar	28.7
	Slot	33.2
	Submerged vanes and bed sill	25.3
	Sacrificial piles and collar	36.2
	Sacrificial piles and slot	38.1
	Slot and collar	81.8
	Bed sill and collar	46.2
Chiew [14]	Slot	20
	Collar	20
	Slot and collar	100
Grimaldi et al. [10]	Slot	30
	Bed sill	26
	Slot and bed sill	45
Soltani-Gerdefaramarzi et al. [15]	Jet injection	30
	Bed suction	9
	Jet injection and bed suction	50.4
Moncada-M et al. [16]	Collar	55 to 96
	Slot	60 to 88
	Collar and slot	100
Mashahir et al. [17]	Collar	23
	Collar and bars	27
Shahkarami [18]	Bed sill	20
	Collar	65
	Bed sill and collar	75
Mazloom et al. [19]	Slot	25
	Submerged vanes	35
	Slot and submerged vanes	86
Zomorodian et al. [20]	Sacrificial piles	46.67
	Collar	70
	Slot	31
	Sacrificial piles and collar	75
	Sacrificial piles and slot	63
	Slot and collar	73
Aghli and Zomorodian [21]	Cable	59
	Collar	55
	Cable and collar	69.7
Shojaei et al. [22]	Submerged vanes	2
	Collar	35
	Submerged vanes and collar	61
Izadinia and Heidarpour [7]	Cable	12.85
	Collar	28.57
	Cable and collar	52.85
Tafarojnoruz et al. [23]	Collar	28.7
	Collar and bed sill	64.5
Javidi-Vahdati et al. [24]	Sacrificial piles	55
	Sacrificial piles and cable	60
Gerami et al. [25]	Bed sill	25.4
	Cable	13.4
	Bed sill and cable	34.4