Gabions for Streambank Stabilization

Gabion Baskets
and Mattresses
Don Thieman, CPESC
Gabion Applications
• Retaining Walls
• Toe Protection
• Slope Mattresses
• Channel Protection
Terra Aqua Gabion Basket
Advantages of Using Gabions
1. Flexibility
2. Permeability
3. Vegetative
4. Economical
5. Environmentally
Friendly
Environmentally Friendly
q
e2
P
distance
height
length
e1
backfill
layer #1
water table
dw
backfill
layer #2
hw
e3
ds2
foundation layer #1
foundation layer #2
hs2
hf2
Mass Gravity Retaining Walls
Gabion Wall Cross Section
Gabion Wall With Scour Apron
Gabion Gravity Retaining Wall With Scour Apron
StableSlope® M.S.E. Wall Design
StableSlope® M.S.E. Wall Design
Define the geometry of the reinforced slope
Ymax
compacted
backfill
H
soil layer #1
gs1 js1 cs1
gb jb
s
d
B
soil layer #2
gs2 js2 cs2
0
Xb
Xmax
Stable Slope
Durability
DURABILITY OF GALVANIZED WIRE
POLLUTED OR CORROSIVE
ENVIRONMENT
0.70
NON POLLUTED
INCONTAMINATED
ENVIRONMENT
COATING WEIGHT
2
LOSS (oz/yard )
0
2
20
50
TIME (YRS) LOG
DURABILITY OF GALVANIZED AND PVC COATED WIRE
10
WIRE DIAMETER
REDUCTION (%)
5
0
50
120 TIME
(YRS)
Vegetated Gabion Walls
Installation
Lining the unit with
coconut fibers and filling
with stones and top soil
Vegetated Reno Mattress
Why Bother with
Vegetating Gabions?
•Vegetated Gabions are more aesthetically pleasing
•Structure of underlying Gabions reduces risk of failure
•Vegetation along streams keeps water temperature low
•Vegetation improves and initiates habitat
•Initiating vegetation reduces unwanted varieties
ASP Offers….
• Site Evaluation
• Preliminary design support
• Project Submittal Shop
Drawings
• Onsite Installation training and
assistance
Questions?
23
April 2016
ASP Enterprises and Quick Supply Co.
“The Midwest’s Most Trusted Site Solutions Provider”