Table 1 Maximum relative scour depth (\({d}_{s\_max}/h\)) values in front of bridge pier and abutment in the presence of debris type with different thicknesses (\({T}_{d}/h\)) for relative distances of 0.1 between pier and bridge abutment (\({d}_{ap}/B\)).

From: New experimental configuration for investigation of debris accumulation effect on local scour at bridge pier and abutment

\({d}_{50}\)(mm)

Q (l/s)

h (m)

\({U}_{c}\)

\({F}_{r}\)

\(\frac{{d}_{s\_\text{max}(P)}}{h}\)

\(\frac{{d}_{s\_\text{max}(A)}}{h}\)

\(\frac{{T}_{d}}{h}\)

\(\frac{{d}_{ap}}{B}\)

Debris shape

Test

0.83

30

0.165

0.247

0.175

0.28

0.31

0.09

0.1

Rec

1

0.83

30

0.165

0.247

0.175

0.29

0.33

0.19

0.1

Rec

2

0.83

30

0.165

0.247

0.175

0.33

0.41

0.29

0.1

Rec

3

0.83

30

0.165

0.247

0.175

0.34

0.42

0.39

0.1

Rec

4

0.83

30

0.165

0.247

0.175

0.28

0.33

0.09

0.1

Semi-C

5

0.83

30

0.165

0.247

0.175

0.28

0.34

0.19

0.1

Semi-C

6

0.83

30

0.165

0.247

0.175

0.34

0.41

0.29

0.1

Semi-C

7

0.83

30

0.165

0.247

0.175

0.37

0.47

0.39

0.1

Semi-C

8

0.83

30

0.165

0.247

0.175

0.25

0.32

0.09

0.1

Tri

9

0.83

30

0.165

0.247

0.175

0.28

0.33

0.19

0.1

Tri

10

0.83

30

0.165

0.247

0.175

0.33

0.40

0.29

0.1

Tri

11

0.83

30

0.165

0.247

0.175

0.37

0.41

0.39

0.1

Tri

12

Back to article page