Impact of Multiple Cyclic Loads on the Cyclic and Post-Cyclic Behavior of Fine-Grained Soils
Publication: Geo-Congress 2024
ABSTRACT
Fine-grained soils subjected to seismic loading often exhibit instability or failure of slopes, foundations, and embankments. To understand the behavior of clay soils under multiple earthquake loads, kaolinite samples were prepared and tested in the laboratory using a cyclic simple shear device. Each sample was subjected to two cyclic events separated by different degrees of reconsolidation periods to simulate different levels of excess pore water pressure dissipation. The results indicated that the degree to which excess pore water pressure generated during the first cyclic event was dissipated affected the cyclic resistance of the soil during the second cyclic event. The post-cyclic undrained shear strength was also found to be a function of the degree to which excess pore water pressure from the first cyclic load was allowed to dissipate prior to the application of the second cyclic load.
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Information
Published In
Geo-Congress 2024
Pages: 84 - 93
History
Published online: Feb 22, 2024
ASCE Technical Topics:
- Continuum mechanics
- Cyclic loads
- Dynamic loads
- Dynamics (solid mechanics)
- Engineering mechanics
- Fine-grained soils
- Geomechanics
- Geotechnical engineering
- Pore pressure
- Pore water
- Pressure (type)
- Seismic loads
- Soil dynamics
- Soil mechanics
- Soil properties
- Soils (by type)
- Solid mechanics
- Structural dynamics
- Water (by type)
- Water and water resources
- Water management
- Water pressure
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