Study of physico-mechanical characteristics of rocks in slope of Mengku iron mine under freezing-thawing cyclic effect

被引：0
|
作者：
Luo, Xue-Dong [1 ]
Huang, Cheng-Lin [1 ,2 ]
Rong, Zeng-Xiang [3 ]
Lü, Qiao-Sen [1 ]
机构：
[1] Faculty of Engineering, China University of Geosciences, Wuhan 430074, China
[2] Department of Mine Management, Xijiang Bayi Iron and Steel Co., Ltd., Bao Steel Group Co., Wulumuqi 830022, China
[3] Geotechnical Branch, Hubei Communications Planning and Design Institute, Wuhan 430051, China
来源：
Yantu Lixue/Rock and Soil Mechanics | 2011年 / 32卷 / SUPPL. 1期
关键词：
Freezing - Thawing - Feldspar - Rock mechanics - Mica - Rocks;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
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页码：155 / 159
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