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The Innovative Precast Retaining Wall Solution PRESENTED BY:
Adam T Baker, LHV Precast
NYS County Highway Superintendents
• The Stone Strong Story
• Concept
• Components
• Design Theory
• Construction Details
• Innovative Solutions
Precast Modular Block Retaining Walls
The Stone Strong Story
8’
3’
44”
Patent No. 6,796,098
The largest retaining wall block in the industry!
Size/Mass
- Gravity Retaining Walls
- ROW/Utility Issues
- Inherent Stability
- Visual Scale
Firebaugh Precast
Dillon, CO
Retail Development
Innovative Stone
Lincoln, NE
Capital Beach Erosion Control
MBO Precast
Middlesboro, MA
Oak Point Retirement Community
The Concept of Stone Strong
Innovative Stone
Lincoln, NE
Williamsburg Village Shoreline Protection
Innovative Stone
Omaha, NE
Harrison Street Reconstruction
LHV Precast
Rensselaer County, NY
Caretakers Rd., Walloomsac River
Versatility
- Flexible Geometry
- Adaptable
- Speed of Installation /
Productivity
The Concept of Stone Strong
8Size/Mass
8Versatility Engineered System
- Lifting Loops
- Recesses
- Voids
- Drainage
The Concept of Stone Strong
Precast
The Concept of Stone Strong
24 SF Block
96” x 36” x 44” Weight: 6,000 lbs
Patent No. 6,796,098
MBO Precast
Milford, MA
Innovative Stone
Nebraska City, NE
Systems Components
Egyptian Concrete
Carbondale, IL
Aspen Court
Innovative Stone
Lincoln, NE
Pioneer Business Park
24 SF Top Block
96” x 36” x 44” Weight: 5,400 lbs
Systems Components
Innovative Stone
Lincoln, NE
6 SF Block
48” x 18” x 44” Weight: 1,500 lbs
Systems Components
Built-In versatility
End/Corner Block
Patent No. 7,073,304
Corner Blocks
Accessories
Systems Components
Dual Face Block
Mass Extender Block
96” x 36” x 56” Weight: 10,000 lbs
Systems Components
24SF-62 Block
96” x 36” x 62” Weight: 6,600 lbs
Systems Components
24SF-86 Block
96” x 36” x 86” Weight: 7,400 lbs
Systems Components
Engineering Manual
Sound Engineering
Behind Stone Strong
www.stonestrong.com
Engineering Manual
www.stonestrong.com
Third-party review
Rigorous review
by committee of
national experts
HITEC Evaluation
What DOT can take from the report:
- Evidence of conformance w/ AASHTO methodologies
- Rigorous technical review
- Viable alternative to traditional retaining systems
HITEC Evaluation
AASHTO Bridge Manual
FHWA-NHI-00-043, MSE
Walls and Reinforced
Soil Slopes
Design Theory
Barbour Concrete Co.
Trinity Woods
Independence, Missouri
ECI Concrete
Mishawaka, Indiana
COULOMB
ACTIVE EARTH PRESSURE COEFFICIENT
2
2
2
coscos
sinsin1coscos
cos
β
Ka
Gravity Walls
Design Methodology
Gravity Walls - IBC
Gravity Walls - AASHTO
Load Resistance Factor Design (LRFD)
Gravity Walls
Innovative Stone
Missouri River Bridge
Yankton, South Dakota
Gravity Walls - LRFD
Gravity Walls - Vertical
Gravity Wall Analysis
Gravity Wall Analysis
Well established methodology
to resolve complex loading
conditions & geometry
Not commonly used due to
computational effort
More accurate assessment of
actual load applied outside of
Coulomb contributory area
Variation of Coulomb
technique
Still consistent with AASHTO
and other standards
Trial Wedge Method
Interaction Reports
Geogrid Reinforced Walls
Detail Library
- Web site
- CAD detail files available
Construction Details
www.stonestrong.com
Innovative Stone
Lincoln, NE
MBO Precast
Massachusetts
Corners / Radius
- 24 SF
Construction Details
Corners / Radius
- 6 SF
Construction Details
Innovative Stone
Lincoln, Nebraska
Office Park
Top End / Steps
Construction Details
Base / Embedment
Construction Details
Backfill Compaction
- Proper compaction (and moisture control) is critical part
of retaining wall construction.
Construction Details
Innovative Stone
Lincoln, Nebraska
Typical Compaction
Requirements
- No reduced compaction
requirement behind face
- Less sensitive to
displacement
- Able to support
compaction equipment
Construction Details
Innovative Stone
Omaha, Nebraska
Harrison Street
Integrated Structures
Innovative Solutions
LHV Precast
New York
County Bridge Abutment
Bridge Abutments
Innovative Solutions
Application of Design & Assembly Of Components
Orange Co Bull Mill Bridge
Orange Co Bull Mill Bridge
Orange Co Bull Run Bridge
Orange Co Bull Mill Bridge
Orange Co Bull Run Bridge
MBO Precast
Massachusetts
Deerfield Crossing
Pipe Penetrations
Innovative Solutions
Innovative Stone
Omaha, NE
Shadow Lake Box Culvert
Hybrid Applications
Innovative Solutions
Engineered Solution
Orange Co Rte 105 – Hurricane Irene
Orange Co Rte 105
Hamilton Co
Dry Brook Rd Bridge Ulster Co
Cascade Brook – Hurricane Irene
Cascade Brook Ulster Co
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