Week 7 Challenge
WATER CUREENT
GIVEN
v = 3m/s
considering or assuming piers to be circular = 305x2 + 380 = 990mm = assuming 1m diameter
d = 1m
r = 0.5 m
`P = 52 k v^2`
where k is shape factor = 0.66 ( since assumed circular)
1. water current load
`P = 52xx0.66xx3^2`
P = 308.88 `(kN)/m^2`
udl = 308.88 x (`pir`) = 308.88 x `pi` x 0.5 = 485.1875 kN/m
`(2pir)2 = pir`
2. scour depth
since discharge and type of soil is not provided assuming depth of foundation from G.L = 2m
3. d = 5.360 + 2 = 7.360 m (ht. of pier)