岩体完整性指数与弹性模量之间的关系研究

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摘要岩体弹性模量值与其完整性指数之间有密切关系，通过其完整性的研究可以间接推断弹性模量值。引入钻孔摄像及相关分析方法获取岩体完整性指数，采用损伤力学原理分析该参数与岩体弹性模量的关系。结果表明，在岩块弹性模量近似不变的情况下，两者之间应具有正线性相关关系，现场试验结果验证了该结论的正确性。另外，对岩体完整性指数和岩石质量指标与岩体弹性模量之间的相关性进行对比结果表明，岩体完整性指数与弹性模量的相关性更好。

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关键词 ：岩石力学, 钻孔摄像, 弹性模量, 岩体完整性指数, 损伤力学

Abstract：Research and test have proved the closeness between elasticity modulus and integrity index of rock mass. The elasticity modulus can be indirectly inferred from the study of rock mass integrity. The borehole image technology and its analytical approaches are used to get the rock mass integrity index(RMDI)，which is deduced to have negative linear correlation with rock mass elasticity modulus when it was kept constant. The conclusion is proved to be right by the on-site trial. Otherwise，it contrasted the correlations of RMDI and rock quality designation to the elasticity modulus of rock mass，the result showed that RMDI and elasticity modulus has higher dependency.

Key words： rock mechanics borehole image elasticity modulus rock mass integrity index(RMDI) damage mechanics

收稿日期: 2010-07-28

引用本文:

郭强1，葛修润1，2，车爱兰1. 岩体完整性指数与弹性模量之间的关系研究[J]. 岩石力学与工程学报, 2011, 30(S2): 3914-3919.
GUO Qiang1，GE Xiurun1，2，CHE Ailan1. RESEARCH ON RELATIONSHIP OF ROCK MASS INTEGRITY INDEX AND ROCK MASS ELASTIC MODULUS. , 2011, 30(S2): 3914-3919.

链接本文:

http://www.rockmech.org/CN/Y2011/V30/IS2/3914

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