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Stručni rad

https://doi.org/10.14256/JCE.1876.2016

Application of geological strength index for characterization of weathering-induced failures

Zoran Berisavljević
Dušan Berisavljević
Dragoslav Rakić
Zoran Radić


Puni tekst: engleski pdf 1.341 Kb

str. 891-903

preuzimanja: 304

citiraj

Puni tekst: hrvatski pdf 1.767 Kb

str. 891-903

preuzimanja: 401

citiraj


Sažetak

This study investigates weathering induced failures of the heterogeneous fissile rock mass consisting of sandstone and shale. Discontinuity data was collected and the geological strength index (GSI) value was determined immediately after excavation based on the quantified GSI chart. Slake durability tests were performed up to the fifth cycle. Samples were exposed to natural climatic conditions during a twelve-month period, in order to quantify slaking process by means of disintegration ratio. As a consequence of exposure, samples disintegrated into smaller fragments. On these bases, the model aimed at addressing delayed failure of cuts is proposed in the paper.

Ključne riječi

slaking; heterogeneity; fissility; disintegration ratio; GSI reduction

Hrčak ID:

208371

URI

https://hrcak.srce.hr/208371

Datum izdavanja:

11.11.2018.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.247 *