| 花岗岩经历不同高温后纵波波速分析 |
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| 引用本文： | 杜守继,马明,陈浩华,邱一平.花岗岩经历不同高温后纵波波速分析[J].岩石力学与工程学报,2003,22(11):1803-1806. |
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| 作者姓名： | 杜守继 马明 陈浩华 邱一平 |
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| 作者单位： | 1. 上海交通大学建筑工程与力学学院,上海,200030
2. 石家庄城市建设投资管理办公室,石家庄,510000 |
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| 基金项目： | 国家自然科学基金(50079012)，教育部留学回国人员科研启动基金资助项目。 |
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| 摘 要： | 对25块花岗岩试件在经历不同高温前后测试出其纵波波速并由测得的纵波波速计算出花岗岩的动力弹性模量，同时应用力学的常规压缩方法直接测试计算了岩石的静力弹性模量，分析了经历不同高温后花岗岩纵波波速和弹性模量的变化规律。测试结果表明，经历高温后花岗岩的纵波波速有不同程度的减少，而且随加热温度的升高，减少的幅度增大。另外，动力弹性模量的变化幅度要远大于静力弹性模量的变化幅度，这说明经历高温后岩石纵波波速的变化比力学性质的变化更剧烈。
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| 关 键 词： | 岩石力学 高温 花岗岩 纵波波速 弹性模量 |
| 文章编号： | 1000-6915(2003)11-1803-04 |
| 收稿时间： | 2003-9-3 |
| 修稿时间： | 2003年9月3日 |
TESTING STUDY ON LONGITUDINAL WAVE CHARACTERISTICS OF GRANITE AFTER HIGH TEMPERATURE |
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| Du Shouji,Ma Ming,Chen Haohua,Qiu Yiping.TESTING STUDY ON LONGITUDINAL WAVE CHARACTERISTICS OF GRANITE AFTER HIGH TEMPERATURE[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(11):1803-1806. |
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| Authors: | Du Shouji Ma Ming Chen Haohua Qiu Yiping |
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| Affiliation: | Du Shouji1,Ma Ming2,Chen Haohua1,Qiu Yiping1 |
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| Abstract: | The longitudinal wave velocities are measured for 25 granite samples before and after high temperature. With the ultrasonic and conventional compression methods,the Youngs moduli of granite after high temperature are determined. The longitudinal wave velocities and Youngs moduli after high temperature are analyzed. The results show that the velocities of longitudinal wave decrease with temperature. The Youngs modulus gained by ultrasonic method decreases more than that gained by conventional method. This means that the change of physical characteristics of granite is much severer than that of its mechanical characteristics after high temperature. |
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| Keywords: | rock mechanics high temperature granite longitudinal wave velocity Youngs modulus |
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