November 30, 2007

Please Post Your Answer to Worked Example 4.3

Please Post Your Answer to Worked Example 4.3 here.

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November 30, 2007

suhayati Abd Rahman @ 4:58 pm

Group E
HW HWout =1.47m
HW100 : HWin = 1.77m > HWout =1.62m

alexyap @ 5:15 pm

group B answer

using pipe culvert
D=2.275m

for Q 50yr HW= 1.92m
for Q 100yr HW= 2.00m

alexyap @ 5:16 pm

group B answer revised

using pipe culvert

D=2.275m

outlet control
for Q 50yr HW= 1.92m
for Q 100yr HW= 2.00m

Ching Chit Keat @ 5:25 pm

Proposed 2nos 1.5m dia. pipe culvert

For Q50 = 7.00m3/s ; HWi =1.5m > HWo = 1.37m (Inlet Control)
For Q50 = 8.20m3/s ; HWi =1.8m > HWo = 1.66m (Inlet Control)

HW (provided) = 1.8m < HW (required) = 2m

A.H.H.TIONG @ 5:29 pm

Group E (Revised)

HwHwout =1.47m
Hw100: Hwin = 1.77m > Hwout=1.62m

Therefore inlet control

khusairy @ 6:03 pm

Group A

Prposed twin pipe culvert 1.5m diameter with inlet control

khusairy @ 6:04 pm

Group A

Proposed twin pipe culvert 1.5m diameter with inlet control

December 3, 2007

suhayati Abd Rahman @ 11:09 am

Group E(from GHD office)
Control HW < 3m
Proposed Box Culvert: 4.5m x1.5m
For Q50: HW inlet=2.37m,outlet=2.24m
For Q100: HW inlet=2.7m , outlet=2.59m
Therefore INLET CONTROL

suhayati Abd Rahman @ 11:12 am

ABOVE ANSWER ACTUALLY FOR 4.2
Group E(from GHD office)
Control HW < 2m
Proposed Pipe Culvert: 1.5m (2 nos)
For Q50: HW inlet=1.53m,outlet=1.47m
For Q100: HW inlet=1.77m , outlet=1.62m
Therefore INLET CONTROL

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