Landfill Installation Considerations: Wind Turbines

Presented By: Gary Garfield, PE, LSP

URS CorporationSalem, New Hampshire

Renewable Energy @ Closed Landfills

 

               

Foundation Types

• Spread Footings

• Rock Socketed and Short Piers

 

               

Foundation types

• Rock Anchor and Cap

• Pile and Cap

 

               

Foundation Variables

• Landfill Thickness• Foundation Materials• Lateral Support• Settlement• Slope Stability

 

               

Turbine Types

Small Wind 10kW

Commercial Power > 1 MW

 

               

Landfill Thickness

• Fall River Landfill 200+ feet

• Hull Landfill 60 feet

• Pittsfield Landfill 12 to 40 feet

 

               

Foundation Materials

• Bedrock• Glacial Till• Gravel• Sand• Clay• Peat / Organics• Municipal

Solid Waste

 

               

Settlement

• Function of Loading– 10 kW Tower & Turbine ~ 3 tons– 100 kW Tower & Turbine ~ 22 tons– 1.8 MW Tower & Turbine ~ 400 tons

• Function of waste type

 

               

Lateral Support

 

               

Stability

• Shear Strength

• Slope Stability

• Overturning Moments

• Bearing Capacity

 

               

Other Important Aspects

• Leachate Collection Systems

• Landfill Liners

• Avian Control

• LFG Collection Systems

 

               

Thank You