Experimental Study on the Critical Height of an Unsupported Vertical Cut
Gregory Brennan, Won Teak Oh, Othman Nasir
In the proceedings of: GeoVirtual 2020: 73rd Canadian Geotechnical ConferenceABSTRACT: In this study, a laboratory test was conducted to investigate the stability of an unsupported vertical cut into engineered sand contained in a large-scale soil tank (W × L × H = 1.5 m × 2.2 m × 2.4 m). The apparatus was equipped to induce saturated and unsaturated conditions by adjusting the water table depth. The sand was supported by removable panels; drawing them away simulated an idealised staged excavation, i.e. a vertical cut was exposed without disturbing adjacent soil. The maximum attainable depth for an unsupported vertical cut, i.e. the critical height, from the test was compared with those estimated using analytical and limit equilibrium methods (Bishop’s simplified method). Good comparison was observed between the measured and estimated critical height.
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Brennan, Gregory, Oh, Won Teak, Nasir, Othman (2020) Experimental Study on the Critical Height of an Unsupported Vertical Cut in GEO2020. Ottawa, Ontario: Canadian Geotechnical Society.
@article{Brennan_GEO2020_328,
author = Gregory Brennan, Won Teak Oh, Othman Nasir,
title = Experimental Study on the Critical Height of an Unsupported Vertical Cut ,
year = 2020
}
title = Experimental Study on the Critical Height of an Unsupported Vertical Cut ,
year = 2020
}