process and impacts of soil compaction clean water summit... basic definitions . soil components...

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Process and Impacts of Soil Compaction John Chapman Program Director Erosion and Stormwater Management Certification Program Bioproducts and Biosystems Engineering Department University of Minnesota [email protected] Clean Water Summit September 13, 2012

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Page 1: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Process and Impacts of Soil Compaction John Chapman

Program Director Erosion and Stormwater Management Certification Program

Bioproducts and Biosystems Engineering Department University of Minnesota [email protected]

Clean Water Summit September 13, 2012

Page 2: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

http://adventuresofacouchsurfer.wordpress.com/tag/dalton-gang/

Page 3: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Basic Definitions

Page 4: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Soil Components

• Voids

• Solids

Page 5: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Soil Components

• Voids

• Solids

Page 6: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Soil Components

• Voids

– Air

– Water

• Solids

Page 7: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Soil Components

• Voids

– Water

• Solids

Page 8: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Soil Components

• Voids

– Air

– Water

• Solids

– Particle Size

– Gravel, Sand, Silt, Clay

– Loam

– Organics

Page 9: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Dry or wet sand?

http://flickr.com/photo/56844661@N00/4846203074

Page 10: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 11: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 12: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 13: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 14: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 15: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 16: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 17: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 18: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 19: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Photo from: Dr. Kovacevic, Geotechnical Consulting Group London

Page 20: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Compaction

Page 21: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Caterpillar 815F Soil Compactor

Wacker Neuson Vibratory Plate Compactor

Page 22: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Moisture Density Relationship

Moisture Content

Soil

Den

sity

m

ass/

volu

me

Page 23: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Moisture Density Relationship

Moisture Content

Soil

Den

sity

m

ass/

volu

me

Optimum Moisture

Maximum Density

Page 24: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Moisture Density Relationship

Moisture Content

Soil

Den

sity

m

ass/

volu

me

Page 25: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

From: www.extension.umn.edu/distribution/crop systems/dc3115.html

Page 26: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Soil clods

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Page 29: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

From: www.extension.umn.edu/distribution/crop systems/dc3115.html

Page 30: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Cone Index of Construction Site Soils

• Rooting Limited at 2000 to 2500 kPa

• Silty Loam 5000 kPa

• Sandy Loam at surface 2000 kPa

• Sandy Loam at 12 inches 3000 kPa

Page 31: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 32: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids
Page 33: Process and Impacts of Soil Compaction Clean Water Summit... Basic Definitions . Soil Components •Voids •Solids . Soil Components •Voids

Thank You