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The schematic diagram of a drainage basin which is divided into three subbasins is shown in the following figure. Calculate the peak discharge at the outlet (point 3) for a rainfall event that has a return period of 10 years. Use IDF curve expressed as i₁0-6879.9/(t1.02+36.74) A₁₂ =3ha C=0.15 Icon=12min inlet A₁ =5ha C₁=0.5 tcon=10min A=4ha inlet C=0.70 |tcon=6min inlet Outlet of the 1 L=200m T1-2-3min 2 L=250m 3 basin T2-3-4min

The schematic diagram of a drainage basin which is divided into three subbasins is shown in the following figure. Calculate the peak discharge at the outlet (point 3) for a rainfall event that has a return period of 10 years. Use IDF curve expressed as i₁0-6879.9/(t1.02+36.74) A₁₂ =3ha C=0.15 Icon=12min inlet A₁ =5ha C₁=0.5 tcon=10min A=4ha inlet C=0.70 |tcon=6min inlet Outlet of the 1 L=200m T1-2-3min 2 L=250m 3 basin T2-3-4min

Fundamentals of Geotechnical Engineering (MindTap Course List)
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter8: Stresses In A Soil Mass
Section: Chapter Questions
Problem 8.14P
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The schematic diagram of a drainage basin which is divided into three subbasins is shown in the following figure. Calculate the peak discharge at the outlet (point 3) for a rainfall event that has a return period of 10 years. Use IDF curve expressed as i₁0-6879.9/(t1.02+36.74) A₁₂ =3ha C=0.15 Icon=12min inlet A₁ =5ha C₁=0.5 tcon=10min A=4ha inlet C=0.70 |tcon=6min inlet Outlet of the 1 L=200m T1-2-3min 2 L=250m 3 basin T2-3-4min
Transcribed Image Text:The schematic diagram of a drainage basin which is divided into three subbasins is shown in the following figure. Calculate the peak discharge at the outlet (point 3) for a rainfall event that has a return period of 10 years. Use IDF curve expressed as i₁0-6879.9/(t1.02+36.74) A₁₂ =3ha C=0.15 Icon=12min inlet A₁ =5ha C₁=0.5 tcon=10min A=4ha inlet C=0.70 |tcon=6min inlet Outlet of the 1 L=200m T1-2-3min 2 L=250m 3 basin T2-3-4min
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