| 岩石单轴压缩Kaiser效应的试验研究 |
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| 引用本文： | 廖孟柯,粱忠雨,陈志福.岩石单轴压缩Kaiser效应的试验研究[J].石河子大学学报,2009,27(3):337-340. |
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| 作者姓名： | 廖孟柯 粱忠雨 陈志福 |
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| 作者单位： | 廖孟柯,LIAO Mengke(石河子大学水利建筑工程学院,石河子,832003);粱忠雨,陈志福,LIANG Zhongyu,CHEN Zhifu(中国矿业大学力学系,徐州,221008)
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 岩石材料在压缩过程中能量释放将产生大量的声发射现象。本文基于Kaiser效应理论及Kaiser点的确定方法,运用单轴压缩试验研究分析了岩石试件的Kaiser效应,结果表明：当岩石压应力达到或超过先期加载应力水平时,将首次出现大量的声发射事件,此处应力水平点即为Kaiser点,采用声发射确定的Kaiser效应点应力值比真实值大8%-8.7%。这表明,Kaiser效应法是一种简单、直观、经济的地应力测定方法。
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| 关 键 词： | Kaiser效应 声发射 单轴压缩 岩石断裂 |
A Study on Kaiser Effect of Rocks under Uniaxial Cyclic Loading |
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| LIAO Mengke,LIANG Zhongyu,CHEN Zhifu.A Study on Kaiser Effect of Rocks under Uniaxial Cyclic Loading[J].Journal of Shihezi University(Natural Science),2009,27(3):337-340. |
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| Authors: | LIAO Mengke LIANG Zhongyu CHEN Zhifu |
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| Institution: | 1 College of Water Conservancy and Architectural Engineering;Shihezi University;Shihezi 832003;China;2 Department of Mechanics;China University of Mining and Technology;Xuzhou 221008;China |
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| Abstract: | Large amount of acoustic emissions appeared by rocks under uniaxial cyclic loading.This phenomenon was used to research energy release of rocks under uniaxial cyclic loading.Based on Kaiser Effect theory,point of Kaiser was found in 8 rocks sample testing.The foremost large amount of acoustic emissions appeared when compressive stresses got to or excess the original stresses distribution.The compressive stress was Kaiser Point stress.Compared Kaiser Point stress with the original stresses distribution of un... |
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| Keywords: | Kaiser effect acoustic emissions uniaxial cyclic loading rock fracture |
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