Monitoring and Geotechnical Assessment of Stabilised Treated Sediment Bund

摘要

This paper presents an assessment of the long term monitoring carried out in conjunction with thernbund construction at the Kooragang Island Emplacement Cell (KIEC). As part of an observationalrnapproach to the design and construction monitoring was carried out during and following thernconstruction period. A back-analysis check of the slope stability of KIEC has been carried out andrnfuture settlements forecast based on the observed movement and interpreted soil strength andrndeformation parameters.rnFactors of Safety (FoS) for the bund embankment stability are compared based on an extrusion failurerncheck, the use of a stability control charts and limit equilibrium slope stability analyses. Thernassessment confirms that rate of filling was controlled to provide an adequate factor of safety duringrnconstruction and for the long term.