Influence of tension cracks on the stability of unsupported vertical trenches in vadose zone
Geeshpati Yanamandra, Won Taek Oh
In the proceedings of: GeoSt. John's 2019: 72nd Canadian Geotechnical ConferenceSession: Unsaturated soil
ABSTRACT: Tension cracks typically occur behind the crests of slopes and cuts, which is considered to be a primary contributor to the instability of slopes and cuts. This is because tension cracks not only decrease shear resistance to slip failure but also can exert an additional lateral force when filled with water. Moreover, tension cracks act as an active pathway for rainfall to infiltrate into soil and leads to rapid increase in permeability and decrease in shear strength of soil in the vicinity of tension cracks. In the present study, the influence of tension cracks on the stability of unsupported trenches in vadose zone is investigated. For this, a series of hydro-mechanical coupled analyses was carried out considering various factors such as depth of tension crack, distance from the crest to the tension crack, and rainfall intensity.
Please include this code when submitting a data update: GEO2019_425
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Yanamandra, Geeshpati, Oh, Won Taek (2019) Influence of tension cracks on the stability of unsupported vertical trenches in vadose zone in GEO2019. Ottawa, Ontario: Canadian Geotechnical Society.
@article{Yanamandra_GEO2019_425,
author = Geeshpati Yanamandra, Won Taek Oh,
title = Influence of tension cracks on the stability of unsupported vertical trenches in vadose zone ,
year = 2019
}
title = Influence of tension cracks on the stability of unsupported vertical trenches in vadose zone ,
year = 2019
}