Using Effective stress theory to characterize the behaviour of backfill

9th International Symposium on Mining with Backfill
Matt Helinski, Martin Fahey,
Abstract ABSTRACT: . The importance of understanding the behaviour of CPB within the framework of the effective stress concept is highlighted in this paper. Only through an understanding built on this concept can problems such as barricade loads, the rate of consolidation and arching be fully understood. The critical importance of the development of stiffness during the hydration process, and its impact on factors such as barricade loads is used to illustrate why conventional approaches that implicitly ignore the effective stress principle are incapable of capturing the essential components of CPB behaviour.
Keywords: Effective, Barricade, Consolidation, Modelling, centrifuge, Cemented, Pastefill
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