Full-Scale Laminar Soil Container for Soil-Structure Interaction Testing
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Full-Scale Laminar Soil Container for Soil-Structure Interaction Testing Warrasak Jakripayanum, Michael Gebman, Scott Ashford. Container Specifications:. Purpose of Investigation:.

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Full-Scale Laminar Soil Container for Soil-Structure Interaction Testing

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Full scale laminar soil container for soil structure interaction testing

Full-Scale Laminar Soil Container for Soil-Structure Interaction Testing

Warrasak Jakripayanum, Michael Gebman, Scott Ashford

Container Specifications:

Purpose of Investigation:

The objective of this research and test is to evaluate the contribution of surrounding soil to shear capacity of CIDH piles through large-scale testing using a full-scale laminar soil shear box. This container will provide an experimental environment in which the following parameters can be controlled:

- Soil Strength

- Soil Stiffness

- Axial Load

- Lateral Load

  • Dimensions: 7 m (23 ft), by 3.5 m (11.5 ft) wide by 5 m (16.4 ft) high

  • Volume: 160.7 yd3, 520,000 lb of soil

  • Consists of 31 rectangular laminar frames, manufactured from W-shape steel sections

  • Movement of frame sections is provided by a roller system on a stainless steel surface

  • A polypropylene liner will be used to keep soil and water inside the container

  • A watering system, in the base, can allow for experimental simulation of liquefaction

Laminar Soil Box at UCSD Powell Labs, utilizing the reaction strong wall for quasi-static testing

Results/Analytical Studies, for CIDH Piles:

N-S Elevation of Soil Container

  • Expected to produce a reduced shear reinforcement design

  • Non-linear FEA will be performed to assess effect of soil-foundation structure interaction on shear demand and shear capacity

  • Effect of soil stiffness, pile reinforcement, and axial load will be considered

  • Analytical studies will be conducted with large scale testing

Laminar Soil Box Testing at the UCSD Camp Elliot Outdoor Earthquake Shake Table, for dynamic soil-structure interaction testing

E-W Elevation of Soil Container

Soil Box Fabrication: Finished

Soil Box Designers:

Proposed Initial Testing Program:

Michael Gebman, MSCE, EIT, Ph.D. Student, Department of Structural Engineering, UCSD

Warrasak Jakrapiyanum, Ph.D., Department of Structural Engineering, UCSD, 2002

Scott Ashford, Ph.D., PE, Associate Professor of Geotechnical Engineering, Department of Structural Engineering, UCSD

A total of 6 to 9 tests will tentatively be carried out: 2 to 3 each in loose sand, dense sand, and cemented sand. Test variable will be axial load, varying from 0 to 20% of CIDH pile capacity.

Fabrication is complete (base shown with tower)

Laminar Frames (just a few…)

Roller System: a roller on stainless steel lined web


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