| 花岗岩样品高温后损伤的试验研究 |
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| 引用本文： | 邱一平,林卓英.花岗岩样品高温后损伤的试验研究[J].岩土力学,2006,27(6):1005-1010. |
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| 作者姓名： | 邱一平 林卓英 |
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| 作者单位： | 上海交通大学,船舶海洋与建筑工程学院,上海,200240 |
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| 摘 要： | 对河南省某地产25块花岗岩样品进行高温预热处理，测量了加温前后弹性纵波波速，并对样品进行单轴压缩应力．应变全过程试验。通过以上试验，给出如下结果：温度对岩石损伤变化的作用；温度对岩石裂隙密度和损伤应变能释放率的影响。实验结果验证了花岗岩的塑性应变主要与偏斜应力产生的形状改变比能有关，而与体积改变比能的关系不大。
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| 关 键 词： | 温度 损伤 裂隙密度 应变能释放率 |
| 文章编号： | 1000-7598-（2006）06-1005-06 |
| 收稿时间： | 2005-01-04 |
| 修稿时间： | 2005年1月4日 |
Testing study on damage of granite samples after high temperature |
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| QIU Yi-ping,LIN Zhuo-ying.Testing study on damage of granite samples after high temperature[J].Rock and Soil Mechanics,2006,27(6):1005-1010. |
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| Authors: | QIU Yi-ping LIN Zhuo-ying |
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| Institution: | School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | The compressional elastic wave velocities are measured for 25 granite samples in Henan Province before and after high temperature; and the complete stress and strain experiment of uniaxial compression is carried out. Through the experiment, the rock damage change due to temperature, temperature affects on rock porosity density and damage strain energy release rate, were observed The experimental data show that the plastic strain of granite mainly depends on the strain energy of distortion due to deviatoric stress, but not on the strain energy of volume change. |
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| Keywords: | temperature damage porosity density strain energy release rate |
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