Earth Retention Solutions

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© 2014 Armtec Infrastructure Inc. • Confidential & Proprietary
Speaker, Cred
Title
Armtec (Drainage or
Precast)
Speaker, Cred
Title
Armtec (Drainage or
Precast)
Doug Lowry, P. Eng,
Sr. Business Development
Engineer
Armtec Drainage Solutions
EARTH RETENTION SOLUTIONS
AN OVERVIEW
Webinar - Dec 12, 2014
Ron Prychitko, P. Eng
Sr. Business Development
Engineer
Armtec Drainage Solutions

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YOUR SPEAKERS
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Senior Business Development Engineer
Ontario
Armtec, Drainage Solutions
Doug.Lowry@armtec.com
Ron Prychitko, P.Eng
Senior Business Development Engineer
Western
Armtec, Drainage Solutions
Ron.Prychitko@armtec.com
Doug Lowry, P.Eng

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ARMTEC
Armtec is a leading global infrastructure
and construction materials company
• 43 locations in Canada
• Approximately 1,700 employees
• Exceptional Product Range for:
• Drainage Solutions
• Precast Concrete Solutions
(standard precast /engineered precast)

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DRAINAGE SOLUTIONS
Corrugated HDPE
((BOSS) & Aluminized
Drainage pipe
Liner Plate for Relining Existing
Conduits
Bin-Type Retaining
Walls & Abutments

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DRAINAGE SOLUTIONS
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DuroMaxx –
Steel Reinforced HDPE Pipe
Polymer Coated Corrugated Plate
Ultra-Flo – Storm Drain
Stormwater Treatment Systems

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DRAINAGE SOLUTIONS
Truss Pedestrian Bridge,
Valleyview, AB
Multi-Plate - (SPCSP)
Bridge-Plate Wildlife Overpasses
Bridge-Plate Arch &
Wire Mesh Walls
Multi-Plate Arch &
MSE WallsBEBO Precast Arches
Bridge Plate Deep
Corrugated Crossings

ParkadesBridge Girders
Durisol Soundwalls
Architectural Panels
Buildings – Stadiums,
Arenas & Commercial
PRECAST ENGINEERED
Specialty Projects

Precast StepsVaults / Service
Boxes / Tanks
Residential Landscape
Products
Earth Retention Walls
Barriers
Precast Box Culvert
PRECAST (regionally based)

Current Armtec Wall & Slope Systems
Bin-Type/ Crib Walls (Bin-wall)
’Durisol’ - Narrow Footprint
Steel Sheeting / Corrugated Face
Gravity or Cantilever
Segmental Block / Geogrid
Geocell / Geogrid
Welded Wire Face / Geogrid (stone/veg)
Bin-Wall / Geogrid
LOCK + LOAD
Modular Precast face MSE
Geotextile Wrapped (Temporary)
Steepened Slopes – Geocell / TRM faced
MSE - Mechanically Stabilized Earth

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AGENDA – EARTH RETENTION
1. Introduction
2. Bin-Type (crib) & anchored walls
3. Narrow Footprint Walls (NFRWS)
4. Precast Face MSE walls
5. Permanent & Temporary MSE Wall options
6. Engineered Slopes (MSE)
7. Wrap-up & Questions
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BIN WALL – WHAT IS IT?
• live load surcharges (vehicular & rail)
• dead load surcharges (backslopes)
Armtec’s stability analysis is limited to:
FS against Sliding & Overturning
Maximum Anticipated Toe Pressures (foundation).

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BIN WALL – GETTING FAMILIAR
3048mm
(10’)
Wall heights are
increments of 16”
(406mm) starting at
4’-4” (1320mm)
Front Face
6 Standard bin depths
(A,B,C,D,E,F)
1.69 to 5.06m

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BIN-WALL APPLICATIONS
Bin-Wall Applications
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16
1.
2.
3.
4.
Backfill - well-graded,
free draining granular
BIN WALL – BACKFILLING STEPSG

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Loading Ramps (River Gold Mine, Ontario)
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Additional Info Required
• Bridge Span, Road width
• Design Vehicle
• Bridge Dead Load
• Abutment height*
• Bin Layout
• Fill height above top of bin
Bridge Abutments

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BIN WALL APPLICATIONS
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Steel Protection Plate
Clear crushed
aggregate or pea-
stone
DOCKS / WHARFS

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STRUCTURE / CULVERT END TREATMENT - WINGWALLS
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SOLID WASTE TRANSFER STATIONS
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OTHER APPLICATIONS
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Outfalls
“Blast” wall
Steel Protection Plate

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WOOD FACE CLADDING
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Canmore AB
Nordic Center

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CORRUGATED FACE ANCHORED WALLS
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ANCHORED WALLS
Bridge-Plate
Sheeting M581

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ANCHORED WALLS
Headwall anchored to structure
Wingwalls anchored to Deadman

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Please visit our
Web site at
armtec.com

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DURISOL NARROW FOOTPRINT WALLS
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DURISOL NARROW FOOTPRINT RWS

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DURISOL NARROW FOOTPRINT WALLS
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MSE PRECAST RETAINING WALL PANELS
REINFORCED EARTH

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NORTH HWY CONNECTOR
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RED DEER, AB

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MSE WITH CAST-IN-PLACE FACE
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TWO CREEK, AB

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WILD GOOSE CREEK, ON

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Doug Lowry, P.Eng.
To order your copy…….
• Contact Doug.Lowry@armtec.com
• Go to www.blurb.ca search title/author
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MSE WALL & SLOPE SOLUTIONS

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RETAINING WALLS
Temporary or Permanent
• Cantilever
• Gravity
• Mechanically Stabilized Earth (MSE)

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MSE WALLS & SLOPES
Fascia with some form of Reinforcement
Reinforcement - Metallic or Geosynthetic
Geosynthetic - Uniaxial Geogrid
- High Strength Woven Geotextile

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REINFORCED WALL ANALYSIS
External Stability
Sliding Movement
Sliding Resistance
Sliding Resistance
Sliding Overturning
Overturning
Movement

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Bearing Capacity Settlement
Movement
External Stability

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External Stability
Connection Tension Pullout
Units Active Wedge Passive Zone

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External Stability
Overturning
Bending
Bulging
Shear

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Earth Retention Solutions – an Overview
TEMPORARY MSE WALLS

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WALL CONSTRUCTION-WRAPPED FACE
1. Check level of base
2. Check all line, grade and curves
3. Place removable form at front of reinforced mass
4. Install first layer of geotextile over removable form
Removable form
Geotextile Reinforcement
Native Soil

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1. Pull Geotextile tight, keep tension applied
until backfill is placed.
Compacted fill
Native Soil
Depression for geotextile wrap
Removable form
2. Place backfill in specified lifts and compact
to 95% Standard Proctor Dry Density.
CONSTRUCTION

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1. Wrap geotextile back over compacted fill
2. Place & compact fill above upper wrap portion and level
Native Soil
Fill on top of geotextile
CONSTRUCTION

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1. Place second removable form by repeating step 2.
(provide required batter with set back)
Native Soil
2. Place second layer of geotextile and reinforced
fill by repeating steps 3 through 4.
3. After completion of second lift, remove the first form.
CONSTRUCTION

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CONSTRUCTION
1. Repeat steps 2 through 4 until wall is at required height
Native Soil
Finished Grade

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High Performance
Woven Geotextile
TEMPORARY MSE WALLS
GEOTEXTILE WRAPPED

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TEMPORARY MSE WALLS
WIRE MESH / GEOTEXTILE WALLS

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PERMANENT MSE WALLS
Reinforcement and Fascia

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MSE WALL SYSTEMS
Welded Wire Face / Geogrid
Finished Grade
Reinforced
Soil Zone
FOUNDATION SOIL ZONE
Native Soil
Geosynthetic
Reinforcement
Welded Wire Fascia

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Geogrid
ReinforcementFinished Grade
Reinforced
Soil Zone
Foundation Soil Zone
Native SoilGeocell Fascia
Geocell / Geogrid
MSE WALLS

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LOCK + LOAD

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BIN WALL / GEOGRID

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TIE-BACK SYSTEMS
Tie-Back Systems

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TIE-BACK SYSTEMS

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MSE ENGINEERED SLOPES

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ENGINEERED SLOPES
-Un/Wrapped Reinforcement
-Turf Reinforcement Mat Facing (TRM)
- Geocell Facing

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ENGINEERED SLOPES
(Reinforced) Slopes
(30 to 70 degrees)
Retaining Walls (>70 degrees)

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Slope Failure Mode
Reinforced Zone
Geogrid
Reinforcement
SurchargeCentre for Potential
Rotational Failure Plane
Failure
Plane
Geosynthetic
Reinforcement
Movement & Tension
Develop Along Failure Plane
TRM

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ENGINEERED SLOPE WRAPPED FACE

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Geogrid Installation

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Turf Reinforcement Mat Installation

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GEOCELL FACED SLOPE

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EARTH RETENTION SOLUTIONS

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Contact Your Local Rep:
www.armtec.com/contact-us
Today’s Speakers:
Doug Lowry
Doug.Lowry@armtec.com
Ron Prychitko
Ron.Prychitko@armtec.com

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MORE WEBINARS COMING SOON!
www.armtec.com/webinars/
Stay Tuned for More Webinars!

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while getting all the latest Armtec and
industry news.
Join Us on Social Media!

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