LUO Xue-dong, HUANG Cheng-lin RONG Zeng-xiang, Lü Qiao-sen. Study of physico-mechanical characteristics of rocks in slope of Mengku iron mine under freezing-thawing cyclic effect[J]. 2011, 32(S1).
LUO Xue-dong, HUANG Cheng-lin RONG Zeng-xiang, Lü Qiao-sen. Study of physico-mechanical characteristics of rocks in slope of Mengku iron mine under freezing-thawing cyclic effect[J]. 2011, 32(S1).DOI:
By means of the freezing-thawing tests of different times
four types of rocks (granulite
amphibole granulite
bedding granulite and biotite-amphibole-plagioclase gneiss) sampling from the slope of Mengku Iron Mine were studied from the aspects of physico-mechanical characteristics that contains appearance
mass loss rate
strength loss rate
freezing-thawing factor and freeze-thaw weathering factor. The research results show that the degradation of granulite and amphibole granulite are unapparent while bedding granulite and biotite-amphibole-plagioclase gneiss are obvious. Taking blasting vibration of mining into account
slopes of the latter two rocks were easier to be damaged under the freezing-thawing effect; they should be focused on during design and construction.