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Soluciones a Problemas de

Ingenieria de Rios

Pierre Y. JulienProfessor of Civil and Environmental EngineeringColorado State University, Fort Collins, CO 80523

pierre@engr.colostate.edu

November 19, 2008Jiutepec, Mexico

Presentation Overview

1. Flashflood in Malaysia

2. Upland Erosion Control

3. Riverbed Degradation

4. River Engineering

5. Sedimentation

6. Flashflood in Venezuela

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December 18, 2006

December 19, 2006

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December 20, 2006

December 21, 2006

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2. Upland Erosion Control

Total rainfall of Typhoon Maemi from 9/8/2003 to 9/13/2003)

South Korea

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Mangun mountain, South Korea

Upland Erosion (continued)

Sheet erosion in the Upper Mississippi River basinSheet erosion in the Upper Mississippi River basin

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Crop field area of the Imha watershed,

S.K.

Annual average:

3,450 tons/km2/year.

Soil loss maps

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CSU Watershed Model TREX

Flow Depth [ft] 100 yr Storm

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Tala HE Project

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Upland Erosion of the Loess Plateauof the Yellow River Basin

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Headcutting

Channel Sediment Sources

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Nakdong River and NREB Unsteady modeling for the upstream of NREB

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neering

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4. River Engineering

Logarithmic Velocity Profile

o

x

z

z

u

vln

1

*

=

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Aerial view of the 1993 Mississippi FloodAerial view of the 1993 Mississippi Flood

August 14August 14thth, 1991, 1991

August 19August 19thth, 1993, 1993

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Levee failure during the 1993 flood event

Riprap Design

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Dykes

PGC2

Cottage Bend

1995

1976

1984

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Slide 63

PGC2 Typical dike construction on the Mississippi RiverPhil Combs, 8/29/2002

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Example 3-D Model Mississippi

L&D No. 3

Locks and Dams

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Sedimentation Problems Can Be Solved

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5. Sedimentation Problems

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Bengal and Indus

CSU Hydraulics Laboratory

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Sediment Flushing

Nakdong River Estuary Barrage

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Los Corales

Los Corales

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Erosion and River Mechanics Textbooks

Acknowledgments

Dr. J ose Luis Lopez (UCV Venezuela) Dr. J . Ariffin (UiTM Malaysia) Dr. Sang-K il Park ( PNU South Korea) Dr. Un J i (MJ U South Korea) Dr. B. Bounvilay(NUOL, Laos) Dr. Z.Y. Wang (IRTCES China) Dr. Phil Combs (USACE-ERDC) Dr. Drew Baird (USBR) Dr. Chris Thornton (CSU) Dr. RosaliaRojas and Claudia Leon (CSU) S. Shah-Fairbank and J . Halgren (CSU)

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Muchas Gracias!Thank you very much!

pierre@engr.colostate.edu