Proceedings of the 20th International Conference on Soil Mechanics and Geotechnical Engineering, 2022, Sydney.
A quarry in the Melbourne suburb of Lilydale reached the end of its productive life and was sold together with surrounding land for residential and commercial development. The quarry is up to 140m deep and as part of the planned development the client wished to backfill the quarry with approximately 9 million cubic metres of stockpiled overburden accumulated from the quarrying operation. Show more…An assessment of the potential settlement of the fill was made using oedometer tests to simulate the initial compression, with samples then saturated to simulate the potential for groundwater recovery to cause aditional settlement., The quarry filling has reached approximately 50% of its planned height and settlement monitoring has been undertaken. The paper details the innovative earth filling strategy, the site work undertaken and assesses the measured behaviour of the unsaturated compression that has taken place to date from a theoretical and practical perspective. The findings of this paper will provide meaningful technical guidance and reference for future large-scale earthworks projects.Show less…
