Earthquake-induced ground failure has resulted in billions of dollars of damage during recent earthquakes. Soils can be broadly characterized as exhibiting either "sand-like" or "clay-like" behavior with respect to strength loss during earthquakes. This project focuses on cyclic failure of "clay-like" soils, which are less well understood than "sand-like" soils. Cyclic failure of fine-grained soils are often constrained to the regions beneath structures, and not in the free-field soils away from the structures, indicating that soil-foundation-structure interaction plays an important role. This project utilizes centrifuge model testing to study cyclic failure of fine-grained soils beneath structures. This research has produced publicly accessible datasets containing all of the experimental measurements and metadata required for users to make sense of the data.
Experiment | Centrifuge Test on Bentonite Clay - Test UCLA JZB01
Cite This Data:
Buenker, J., S. Brandenberg, M. Eslami, D. Abundis, T. Buckreis, J. Stewart (2020). "Centrifuge Test on Bentonite Clay - Test UCLA JZB01", in Soil-Foundation-Structure Interaction Effects on the Cyclic Failure Potential of Silts and Clays. DesignSafe-CI. https://doi.org/10.17603/ds2-e7s5-b025
View Data
Author(s)
; ; ; ; ;
Facility
Center for Geotechnical Modeling - University of California, Davis
Experiment Type
Centrifuge
Equipment Type
9m Radius Dynamic Geotechnical Centrifuge
Date of Experiment
2017-08-21 ― 2018-02-08
Date Published
2020-09-30
DOI
10.17603/ds2-e7s5-b025
License
Open Data Commons Attribution
Description:
This experiment tested three structures resting on a fine-grained soil layer consisting of non-plastic silt blended with bentonite. A sequence of earthquake ground motions was applied to the model container. Measurements included acceleration, displacement, pore pressure, bending strain, and axial strain.
Report | Digital Data Report
Description:
An interactive Jupyter notebook that describes the experiment.
File Name
Report | Data Processing
Description:
Scripts utilized to process recorded data by truncating, applying calibration factors, baseline correction, and filtering.
File Name
Model Configuration | Structural Model
Description:
Files associated with this category pertain to testing of the structures to calibrate the strain gauges prior to the structures being placed in the centrifuge model.
File Name
Sensor Information | Pluck Testing
Description:
Files associated with this category pertain to calibration of strain gauges affixed to the structures during pluck tests prior to mounting the structures on the centrifuge models.
File Name
Event | Pluck Testing
Description:
Data obtained from accelerometers and strain gauges mounted on structures during pluck tests.
File Name
Model Configuration | Centrifuge Model
Description:
Files associated with this category pertain to testing performed on the model while it was on the centrifuge arm.
File Name
Sensor Information | Centrifuge (consolidation)
Description:
Files associated with this category were for consolidation of the fine-grained soil when the centrifuge was spinning. A different sensor was used for shaking events.
File Name
Event | Slow Data from Spin 3 (Consolidation on Centrifuge)
Description:
Data gathered at 1Hz sampling frequency to monitor the slow response of the model during spin 3.
File Name
Sensor Information | Centrifuge (testing and dynamic shaking)
Description:
Files associated with this category pertain to the shaking events imposed on the model during centrifuge spinning.
File Name
Event | Slow Data from Spin 1 (Structure 1 Tipped Over)
Description:
Data gathered at 1Hz sampling frequency to monitor the slow response of the model during spin 1.
File Name
Event | Slow Data from Spin 2 (Structure 1 Tipped Over)
Description:
Data gathered at 1Hz sampling frequency to monitor the slow response of the model during spin 2.
File Name
Event | Slow Data from Spin 4 (Power Failure)
Description:
Data gathered at 1Hz sampling frequency to monitor the slow response of the model during spin 4.
File Name
Event | Slow Data from Spin 5 (Administered Dynamic Shaking)
Description:
Data gathered at 1Hz sampling frequency to monitor the slow response of the model during spin 5.
File Name
Event | Fast Data from Spin 5 (Dynamic Shaking Data)
Description:
Data gathered at approximately 5000Hz sampling frequency to monitor the model response to dynamic shaking during Spin 4.
File Name
Sensor Information | T-Bar
Description:
Files associated with this category were for measuring the undrained shear strength of the fine-grained soil.
File Name
Event | T-Bar
Description:
T-Bar test data
File Name
Model Configuration | Hydraulic Press
Description:
Files associated with this category pertain to consolidation of the fine grained soil on the hydraulic press before being placed on the centrifuge.
File Name
Sensor Information | Consolidation on Hydraulic Press
Description:
Files associated with this category pertain to consolidation of the fine-grained slurry on the hydraulic press prior to the model being placed on the centrifuge.
File Name
Event | Consolidation on Hydraulic Press
Description:
Consolidation of fine-grained soil on hydraulic press prior to model being placed on the centrifuge.
File Name
Experiment | Centrifuge Testing on Kaolinite Clay - Test UCLA JZB02
Cite This Data:
Buenker, J., S. Brandenberg, J. Stewart (2020). "Centrifuge Testing on Kaolinite Clay - Test UCLA JZB02", in Soil-Foundation-Structure Interaction Effects on the Cyclic Failure Potential of Silts and Clays. DesignSafe-CI. https://doi.org/10.17603/ds2-jpwh-nq72
View Data
Author(s)
; ;
Facility
Center for Geotechnical Modeling - University of California, Davis
Experiment Type
Centrifuge
Equipment Type
9m Radius Dynamic Geotechnical Centrifuge
Date of Experiment
2018-10-24 ― 2019-01-26
Date Published
2020-09-30
DOI
10.17603/ds2-jpwh-nq72
License
Open Data Commons Attribution
Description:
This experiment tested three structures resting on fine-grained soil consisting of non-plastic silt blended with kaolinite, layered with sand lenses. A sequence of earthquake ground motions was applied to the model container. Measurements included acceleration, displacement, pore pressure, bending strain, and axial strain.
Report | Data Processing
Description:
Scripts utilized to process recorded data by truncating, applying calibration factors, baseline correction, and filtering.
File Name
Model Configuration | Structural Model (JZB02)
Description:
Files associated with this category pertain to testing of the structures to calibrate the strain gauges prior to the structures being placed in the centrifuge model.
File Name
Sensor Information | Pluck Testing (JZB02)
Description:
Files associated with this category pertain to calibration of strain gauges affixed to the structures during pluck tests prior to mounting the structures on the centrifuge models.
File Name
Event | Pluck Testing (JZB02)
Description:
Data obtained from accelerometers and strain gauges mounted on structures during pluck tests.
File Name
Report | Digital Data Report (JZB02)
Description:
An interactive Jupyter notebook that describes the experiment.
File Name
Model Configuration | Hydraulic Press (JZB02)
Description:
Files associated with this category pertain to consolidation of the fine grained soil on the hydraulic press before being placed on the centrifuge.
File Name
Sensor Information | Consolidation (JZB02)
Description:
Files associated with this category pertain to consolidation of the fine-grained slurry on the hydraulic press prior to the model being placed on the centrifuge.
File Name
Event | Consolidation (JZB02)
Description:
Files associated with this category pertain to consolidation of the fine-grained slurry on the hydraulic press prior to the model being placed on the centrifuge.
File Name
Model Configuration | Centrifuge Model (JZB02)
Description:
Files associated with this category pertain to testing performed on the model while it was constructed in the shop or on the centrifuge arm.
File Name
Sensor Information | T-Bar Testing (JZB02)
Description:
Files associated with this category were for measuring the undrained shear strength of the fine-grained soil.
File Name
Event | T-Bar Testing (JZB02)
Description:
T-Bar test data
File Name
Sensor Information | Centrifuge (JZB02)
Description:
Files associated with this category pertain to the testing and dynamic shaking events imposed on the model during centrifuge spinning.
File Name
Event | CPT (JZB02)
Description:
Cone penetration test data
File Name
Event | Slow Data from Spin 1 (Groundwater Issues)
Description:
Data gathered at 1Hz sampling frequency to monitor the slow response of the model during spin 1.
File Name
Event | Slow Data from Spin 2 (Administered Dynamic Shaking)
Description:
Data gathered at 1Hz sampling frequency to monitor the slow response of the model during spin 2.
File Name
Event | Fast Data from Spin 2 (Dynamic Shaking Applied)
