riverbank stabilization criteria and examplespierre/ce_old/...riverbank stabilization criteria and...
TRANSCRIPT
1
Pierre Y. Julien
Wuhan 2005
Riverbank Stabilization Criteria and Examples
Objectives
Part III – Stream Stabilization
1. Present and discuss important concepts, criteria and guidelines for small rivers
2. Present examples of stream stabilization
Concept of Equilibrium
2
Vertical Degradation
Headcutting
3
Bank Caving
Headcutting
4
5
6
7
8
9
Bank Protection
10
11
Environmentally Sound
12
13
14
Figure 7.3 Schematic Diagram of Windrow Revetment
15
Figure 7 5 Placement of Windrow Rock in Excavated Trench on Top Bank
16
17
Figure 8.2 Typical Impermeable Dikes
18
19
MEI
Jetty System (near Bernardo), USACE 1963
Jetty fields and vegetation of the Rio Grande
20
Bernardo Gage
Timber Pile Revetment
Revetment Capout
21
Erosion and River Mechanics Textbooks
www.cup.org
Objectives
Part IV – Riverbank Stabilization
1. Present and discuss important concepts, criteria and guidelines for large rivers
2. Present examples of riverbank stabilization
Concept of Equilibrium
22
Stonefill Revetment
23
Channel Contraction
Channel Control Dikes
24
25
Channel Realignment
Construction Dredging
Oxbow Preservation
26
Access to Oxbows
Trenchfill Revetment
Flow
Dikes Used to Restrict Flow to a Single Low Water Channel
27
Additional Contraction Structures
Dykes
Environmental Considerations
28
Typical Stone Dyke
Rough Concrete Surface
Vented Dykes
29
Geobags
Geo Containers
30
31
Willow Mats