Recently, issues pertaining to surface disposal of coal-mine wastes, particularly environmental pollution, have been the focus of increasing national and international concern. Solid backfill mining (SBM) method provides environmentally, economically and technically acceptable solutions to these issues by, inter alia, significantly increasing waste-disposal capacities, improving resource recovery rates and reducing levels of ground deformation. In the current study, the physical and mechanical properties of waste rock obtained from seven different locations in China have been described and assessed. A previously developed theoretical solution has been fitted to the nonlinear stress-strain relationship, as derived from testing, resulting in a satisfactorily high level of correlation. Additionally, a basic method for simulation of solid material consolidation via dynamic parameter updates has been expounded and shown to be feasible. Results of the current study may prove extremely useful, particularly in mining applications, engineering design and prediction.

No abstract

No abstract

No abstract