Skip to Main Content
Table 6

Comparison of the influence of different bridge piers on flow velocity

Working conditionsDetection pointsThe rectangular piers
The round piers
The oval piers
Flow velocity of bridge section after bridge construction /mVelocity of bridge section before bridge construction /mBackwater value /mFlow velocity of bridge section after bridge construction /mVelocity of bridge section before bridge construction /mBackwater value /mFlow velocity of bridge section after bridge construction /mVelocity of bridge section before bridge construction /mBackwater value /m
The 10-year cycle 1.52 1.69 0.17 1.54 1.69 0.15 1.58 1.69 0.11 
1.66 1.76 0.1 1.67 1.76 0.09 1.72 1.76 0.04 
1.05 1.87 0.82 1.21 1.87 0.66 1.25 1.87 0.62 
1.90 2.10 0.2 1.94 2.10 0.16 1.97 2.10 0.13 
1.35 2.12 0.77 1.42 2.12 0.7 1.48 2.12 0.64 
1.93 2.21 0.28 2.04 2.21 0.17 2.07 2.21 0.14 
1.76 1.99 0.23 1.78 1.99 0.21 1.82 1.99 0.17 
Annual average 0.35 0.42 0.07 0.38 0.42 0.04 0.41 0.42 0.01 
0.83 0.89 0.06 0.85 0.89 0.04 0.87 0.89 0.02 
0.34 0.90 0.56 0.42 0.90 0.48 0.47 0.90 0.43 
0.84 0.89 0.05 0.86 0.89 0.03 0.88 0.89 0.01 
0.43 0.92 0.49 0.57 0.92 0.35 0.68 0.92 0.24 
1.12 1.20 0.08 1.15 1.20 0.05 1.16 1.20 0.04 
0.71 0.87 0.16 0.79 0.87 0.08 0.82 0.87 0.05 
Lowest water level 0.08 0.153 0.073 0.13 0.153 0.023 0.15 0.153 0.003 
0.31 0.358 0.048 0.32 0.358 0.038 0.35 0.358 0.008 
0.15 0.361 0.211 0.20 0.361 0.161 0.24 0.361 0.121 
0.33 0.365 0.035 0.34 0.365 0.025 0.36 0.365 0.005 
0.26 0.368 0.108 0.27 0.368 0.098 0.30 0.368 0.068 
0.54 0.608 0.068 0.57 0.608 0.038 0.59 0.608 0.018 
0.16 0.221 0.057 0.19 0.221 0.027 0.21 0.217 0.007 
Working conditionsDetection pointsThe rectangular piers
The round piers
The oval piers
Flow velocity of bridge section after bridge construction /mVelocity of bridge section before bridge construction /mBackwater value /mFlow velocity of bridge section after bridge construction /mVelocity of bridge section before bridge construction /mBackwater value /mFlow velocity of bridge section after bridge construction /mVelocity of bridge section before bridge construction /mBackwater value /m
The 10-year cycle 1.52 1.69 0.17 1.54 1.69 0.15 1.58 1.69 0.11 
1.66 1.76 0.1 1.67 1.76 0.09 1.72 1.76 0.04 
1.05 1.87 0.82 1.21 1.87 0.66 1.25 1.87 0.62 
1.90 2.10 0.2 1.94 2.10 0.16 1.97 2.10 0.13 
1.35 2.12 0.77 1.42 2.12 0.7 1.48 2.12 0.64 
1.93 2.21 0.28 2.04 2.21 0.17 2.07 2.21 0.14 
1.76 1.99 0.23 1.78 1.99 0.21 1.82 1.99 0.17 
Annual average 0.35 0.42 0.07 0.38 0.42 0.04 0.41 0.42 0.01 
0.83 0.89 0.06 0.85 0.89 0.04 0.87 0.89 0.02 
0.34 0.90 0.56 0.42 0.90 0.48 0.47 0.90 0.43 
0.84 0.89 0.05 0.86 0.89 0.03 0.88 0.89 0.01 
0.43 0.92 0.49 0.57 0.92 0.35 0.68 0.92 0.24 
1.12 1.20 0.08 1.15 1.20 0.05 1.16 1.20 0.04 
0.71 0.87 0.16 0.79 0.87 0.08 0.82 0.87 0.05 
Lowest water level 0.08 0.153 0.073 0.13 0.153 0.023 0.15 0.153 0.003 
0.31 0.358 0.048 0.32 0.358 0.038 0.35 0.358 0.008 
0.15 0.361 0.211 0.20 0.361 0.161 0.24 0.361 0.121 
0.33 0.365 0.035 0.34 0.365 0.025 0.36 0.365 0.005 
0.26 0.368 0.108 0.27 0.368 0.098 0.30 0.368 0.068 
0.54 0.608 0.068 0.57 0.608 0.038 0.59 0.608 0.018 
0.16 0.221 0.057 0.19 0.221 0.027 0.21 0.217 0.007 
Close Modal

or Create an Account

Close Modal
Close Modal