1. Liquefaction and Laminar Box Experimental Preparation Presented by: Mike Sampson

2. Overview Liquefaction Laminar box experiment –Sand Preparation –Assembly 1/10 th scale laminar box Project –Design –Assembly

3. Liquefaction Cause Effect Pile Foundations Examples

4. Laminar Box Goals of experiment Capabilities –Size –Configurations –Sensors Progress –Pump Tests –Assembly

5. Sand Preparation Importance General method Relative density Problems Improvements Lab pumping

6. Assembly Base Ball bearings and leveling Reaction beam and actuators Membrane protection –Styrofoam –Duct Tape Actuators delays Membrane construction

7. 1/10 th Scale Laminar Box Motivation –Visual demonstration Goals –Induce Liquefaction –Reusability Tasks –Design –Assembly

8. Design Alternate Designs –Cylinder –Rollers Original Concept –Motion restriction –Bearing system Final Design –16 layers –Two foot cube Static Calculations

9. Assembly Plexiglas –Cutting –Milling –Rings Bearing system –Teflon tubing –Teflon tape –Ball bearings Bottom pump –Burlap bag –Gravel –Hose Membrane Assembly

10. Conclusion What was accomplished? What will be accomplished? What will be the effect of this research? –Large scale laminar box experiments –1/10 th scale laminar box demonstrations

11. Acknowledgments Dr. Thevanayagam Nurhan Ecemis Tom Albrechcinski Melanie Brown Bob Staniszewski Duane Kozlowski UB NEES NSF