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Strength reduction method in Barodesy
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DOI：10.1016/j.compgeo.2017.09.010.png)
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Abstract
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Strength reduction analysis are very common in geotechnical engineering to define a factor of safety of structures, e.g. slopes. Usually, the Mona-CouLoma strength parameters friction angle phi' and cohesion c' are reduced until limit equilibrium is reached. This method is only applicable to material models which utilize a MOHR-CouLords or similar (e.g. DRUCICER-PRAGER) failure criterion. In this article a strength reduction method for the barodetic material model is introduced and the results of slope stability calculations compared with the results with an elasto-plastic material model (Mona-CouLoma) and with the results of an analytical analysis according to BISHOP are presented. The strength reduction method for barodesy has been implemented in the Finite Element code ABAQUS.
Keywords:
phi '-c ' reduction method
Strength reduction method
Barodesy
MOHR-COULOMB
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