The Australian Council of Trade Unions has welcomed Labor’s plan to give casual workers the option of permanent work rights. Others say more needs to be done to resolve the “casual problem”. Jim McIlroy reports.
Based on a two-layered viscous fluid theory, a numerical model to capture the progressive nature of wave-induced liquefaction has been developed. Unlike the existing models, this model can consider the cyclic shear stress associated with vibrating liquefied soil layers and its effect on sub-liquefied soils during the wave-induced liquefaction. The reliability of this model is validated by simulating wave flume tests, which show a promising prediction when compared to analytical solutions, particularly after the onset of liquefaction where an increased amplitude in the oscillatory pore water pressure can be observed. The numerical results show that the moving characteristics of liquefied soil are similar to those of a water particle in the presence of surface water waves with the horizontal velocity being much greater than the vertical velocity. Unlike the model without considering the liquefied soil-induced cyclic shear stress, the proposed model predicts a prompt increase in residual
Are you experienced in evidence-based policy making? Are you passionate about social justice and social democracy? The Whitlam Institute is seeking a new Policy and Research Manager who will lead our work to develop and influence policy by engaging with communities, working across the political spectrum and offering constructive and practical policy solutions.