Evaluation of cutter soil mixing technique for stabilisation of Coode Island Silt

Project (PhD)

A major part of Melbourne’s central business district is underlain by a soft silty clay deposit known as Coode Island Silt (CIS). CIS has a very low shear strength and high compressibility. One solution could be to improve the stiffness and strength of such a problematic soil by the use of a ground improvement technique such as soil mixing columns /panels. The main part of the current research is to investigate the effectiveness of the Cutter Soil Mixing (CSM) technique using lime to improve the CIS. During this project the strength and stiffness of the treated CIS is evaluated using laboratory experiments. Also, the efficiency of the method will be evaluated by finite element analysis is aggregation of soil particles.