主 讲 人：Professor D. Vaughan Griffiths 美国科罗拉多矿业大学教授
讲座时间：2023年9月27日 14:30
讲座地点：L栋416室
主讲人简介：
Professor D. Vaughan Griffiths, Professor of Civil Engineering, Colorado School of Mines, USA. Fulbright Distinguished Chair 2023, University of Newcastle, NSW.
讲座内容简介：
Slope stability analysis remains a central activity for geotechnical practitioners and a continued area of interest and research for academics. A wide range of methodologies for slope stability analysis have been developed, ranging from Taylor’s charts from the 1930s to state-of-art random finite element methods for probabilistic analysis. The lecture starts with a general discussion of the factor of safety and discusses the significant contrast between factors on loads, as opposed to factors on strength. A classical slope problem solved by Taylor is then revisited using (i) simple optimization assuming circular failure mechanisms, (ii) elastic-plastic finite elements with strength reduction and (iii) upper- and lower-bound finite element limit analysis. The results show the benefits of the finite element approaches, especially as the slope becomes relatively flat where the simple approach starts to overestimate the factor of safety.
