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Study on Creep Characteristics of Cemented Waste Rock Backfills
The Open Civil Engineering Journal
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29 Oct 2015 •
RESEARCH ARTICLE
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DOI: 10.2174/1874149501509010957
Abstract
Slip instability and tensor instability are two kinds of failure modes of cemented waste rock backfills. In order to simulate the creep characteristics of cemented waste rock backfills, PFC was carried out. The results show that: rocks inside the models will have displacement under load. The expansion is caused by large lateral displacement of the rocks. A non-stationary creep model of cemented waste rock backfills was established based on the results of simulation. This model can be used to describe the whole creep characteristics of cemented waste rock backfills better.
Keywords: Cemented waste rock backfills, non-stationary Nishihara model, PFC, short-time creep.
