CONTENTS
Preface .............................................................................................................................
ii
Introduction .....................................................................................................................
1
Model development .........................................................................................................
1
Hydrodynamic model ..............................................................................................
3
Ice dynamic model ..................................................................................................
6
Constitutive law .......................................................................................................
7
Initial and boundary conditions ...............................................................................
8
Limiting conditions for ice accumulation behind the boom ....................................
8
Ice load on the boom ...............................................................................................
9
Model verification and calibration ..................................................................................
10
Verification of the hydrodynamic model with a uniform ice cover .........................
10
Analytical solutions for river ice jams .....................................................................
10
Open water calibration for Missouri River ..............................................................
13
Simulation of the January 1977 Missouri River ice jam .........................................
14
Assessment of ice boom alternatives ...............................................................................
21
100% effective ice booms normal to flow direction ................................................
21
Slant-oriented boom ................................................................................................
24
Summary ..........................................................................................................................
25
Literature cited .................................................................................................................
27
Abstract ............................................................................................................................
29
ILLUSTRATIONS
Figure
1. Middle Mississippi and lower Missouri Rivers .....................................................
2
2. Study area ..............................................................................................................
3
3. Definition sketch ...................................................................................................
4
4. Definition sketch for grounded ice accumulation .................................................
4
5. Interaction of a differential element of ice rubble with the boom .........................
10
6. Comparison of water surface profiles ....................................................................
11
7. Comparison of simulated jam profiles and the analytical solution for the
zero bank friction case .........................................................................................
12
8. Comparison of simulated jam profiles with the analytical solution for the
case with bank friction .........................................................................................
13
9. Ice thickness distributions .....................................................................................
14
10. Model domain 1 .....................................................................................................
15
11. Model domain 2 .....................................................................................................
16
iii
Previous Page
