An Experimental Study of the Saturation Effect on Soil Erodibility Using Rotating Testing Apparatus
Publication: Geo-Congress 2024
ABSTRACT
Surface erosion of soil is a process of transporting soil grains by flowing fluids. It has been recognized as one of the major risks associated with infrastructure built in rivers, estuaries, and the coast, such as bridges, quays, and levees. Removing soils during the erosion process reduces soil support to the structures and may eventually lead to structural collapse. In this study, surface erosion of clayey soil was investigated using a purpose-built rotating surface erosion apparatus (RSEA). It specifically focuses on the effects of saturation and soil slaking on the erodibility of the clayey soil. The results show that increase of soil saturation decreased the erosion rate of the soil at the same hydraulic condition but did not change the erodibility category. Moreover, it was also found that the time-dependent disintegration/slaking process of unsaturated soil was critical to erodibility of unsaturated soil.
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Information & Authors
Information
Published In
Geo-Congress 2024
Pages: 501 - 509
History
Published online: Feb 22, 2024
ASCE Technical Topics:
- Clays
- Continuum mechanics
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Equipment and machinery
- Erosion
- Geology
- Geomechanics
- Geotechnical engineering
- Motion (dynamics)
- Rotation
- Saturated soils
- Soft soils
- Soil analysis
- Soil mechanics
- Soil properties
- Soils (by type)
- Solid mechanics
- Unsaturated soils
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