非标准岩样室内力学试验的几种处理方法  

SEVERAL PROCESSING METHODS IN INDOOR MECHANICS TESTS OF THE NON-STANDARD ROCK SAMPLES

作　　者：杨同[1] 王宝学[1] 张磊[1] 

机构地区：[1]北京科技大学"金属矿山高效开采及安全"教育部重点实验室,北京100083

出　　处：《中国矿业》2007年第2期87-89,共3页China Mining Magazine

摘　　要：本文解释了室内岩石力学试验中使用非标准岩样的主要原因。参考国内外部分相关研究成果,针对高径比非标准岩样的单轴压缩试验、尺寸大小非标准岩样的单轴压缩试验和小直径岩样三轴试验等3种情况,提出适合工程应用的处理方法:将试验结果乘以高径比修正系数或直径修正系数,以及在小直径岩样三轴试验中采用轴向应力计算公式。上述方法具有较好的可靠性、可比性、通用性和可操作性。The major reasons that non-standard rock samples in indoor rock mechanics tests are adopted are explained in this paper. Referring to the correlating research achievements from home and abroad, suitable engineering processing methods are suggested in three cases, which are uniaxial compression tests with different height-to-diameter ratio of non-standard rock samples, uniaxial compression tests with different sizes of non-standard rock samples, and triaxial tests with small diameter rock samples. Such processing methods are multiplying height-to-diameter ratio correction factor or diameter correction factor to the corre- sponding test results, and adopting axial stress formula in triaxial tests with small diameter rock samples. These methods have good reliability, comparability, universality and maneuverability.

关 键 词：岩石力学试验 非标准形态 尺寸效应 修正系数 

分 类 号：TU452[建筑科学—岩土工程]