| 岩石单轴压缩试验Kaiser效应实质的研究 |
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| 引用本文： | 樊运晓.岩石单轴压缩试验Kaiser效应实质的研究[J].现代地质,2000,14(1):95-99. |
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| 作者姓名： | 樊运晓 |
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| 作者单位： | 中国地质大学工程技术学院!北京100083 |
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| 摘 要： | 岩石 Kaiser效应具有记忆先前应力、纵向应变和横向应变的能力 ,记忆的准确程度随加载阶段不同而不同。为了解 Kaiser效应的记忆实质 ,通过岩石单轴压缩试验确定 Kaiser效应对体积应变、弹性模量和泊松比三项物性参数的记忆能力。结果表明 ,岩石 Kaiser效应具有记忆先前物性参数的能力 ,其中尤以对弹性模量的记忆能力表现为最好 ,而且受时间因素影响不大 ,说明岩石 Kaiser效应的实质是对其内部物理特性的记忆
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| 关 键 词： | 岩石 Kaiser效应 单轴压缩试验 物性参数 |
| 修稿时间： | 1999-09-30 |
NATURE OF KAISER EFFECT OF ROCKS UNDER UNIAXIAL CYCLIC LOADING |
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| Fan Yunxiao.NATURE OF KAISER EFFECT OF ROCKS UNDER UNIAXIAL CYCLIC LOADING[J].Geoscience——Journal of Graduate School,China University of Geosciences,2000,14(1):95-99. |
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| Authors: | Fan Yunxiao |
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| Abstract: | Past experimental evidence indicates that rock on certain conditions exhibits the Kaiser effect(KE)when it is loaded,and the KE of rock has ability to remember its maximum previous state parameters including stress,axial strain and transverse strain.At the same time the accuracy of state parameters′ KE is different with loading stages.Recent experiment indicates that rock also has ability to remember its maximum previous physical parameters such as bulk strain,Young′s module and Poisson′s ratio.“Young′s module memory”which is of both accuracy and stability shows the best among the three physical parameters.Furthermore,the experiment result shows“Young′s module memory”not to be affected by time factor.It demonstrates that the nature of Kaiser effect is memory of its previous physical behavior. |
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| Keywords: | rock Kaiser effect uniaxial cyclic loading physical parameter |
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