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George Filz Virginia Tech October 2011

Possible Use of VT’s Column-Supported-Embankment Test Facility to Investigate Embankments in Karst Terrain. George Filz Virginia Tech October 2011. Column-Supported-Embankment Test Facility. Test Facility Concept. Cutting and Placing Geofoam.

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George Filz Virginia Tech October 2011

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  1. Possible Use of VT’sColumn-Supported-EmbankmentTest Facility to InvestigateEmbankments in Karst Terrain George Filz Virginia Tech October 2011

  2. Column-Supported-EmbankmentTest Facility

  3. Test Facility Concept

  4. Cutting and Placing Geofoam

  5. Geofoam around Columns,Dissolver Distribution System in Place

  6. Load Cells and Web Cams

  7. Instrumentation on Bottom Geogrid Layer

  8. Pressure Cell in Fill

  9. Second Layer of Geogrid

  10. Fill Compaction

  11. Low Embankment, Widely Spaced Columns, Before Dissolving Geofoam

  12. Webcam View during Dissolving Geofoam

  13. Webcam View after Dissolving Geofoam

  14. Low Embankment, Widely Spaced Columns, After Dissolving Geofoam

  15. Low Embankment, Closely Spaced Columnsbefore Dissolving Geofoam

  16. Low Embankment, Closely Spaced Columnsafter Dissolving Geofoam

  17. Low Embankment, Closely Spaced Columnsafter Dissolving Geofoam and Trafficking

  18. High Embankment, Closely Spaced Columns,before Dissolving Geofoam

  19. High Embankment, Closely Spaced Columns,after Dissolving Geofoam and Trafficking,No Differential Settlement

  20. Definition Sketch for Normalized Hcrit

  21. Normalized Differential Settlement

  22. Comparing Pilot-Scale Tests to Bench-Scale Tests and Case History Data After Trafficking Before Trafficking

  23. Column-Supported-EmbankmentTest Facility

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