| 岩石声发射Kaiser效应应用于地应力测试的研究 |
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| 引用本文： | 姜永东,鲜学福,许江.岩石声发射Kaiser效应应用于地应力测试的研究[J].岩土力学,2005,26(6):946-950. |
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| 作者姓名： | 姜永东 鲜学福 许江 |
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| 作者单位： | 重庆大学,西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400030 |
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| 基金项目： | 国家自然科学基金重点资助项目(50334060)，重庆市院士基金资助项目(6592) |
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| 摘 要： | 介绍了声发射Kaiser效应测定岩体地应力的原理、方法和测试技术，应用弹性力学理论推导出地下岩体测点处的地应力表示和地应力椭球基本方程。通过在定向岩芯9个特殊方向取样，进行声发射试验得到了各方向的单向正应力值，将其值代入地应力计算公式中得到了3个主应力的大小、方向。其实验研究结果可为工程提供借鉴和参考。
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| 关 键 词： | 地应力 声发射 Kaiser效应 |
| 文章编号： | 1000-7598-(2005)06-0946-05 |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2005年3月8日 |
Research on application of Kaiser effect of acoustic emission to measuring initial stress in rock mass |
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| JIANG Yong-dong,XIAN Xue-fu,XU Jiang.Research on application of Kaiser effect of acoustic emission to measuring initial stress in rock mass[J].Rock and Soil Mechanics,2005,26(6):946-950. |
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| Authors: | JIANG Yong-dong XIAN Xue-fu XU Jiang |
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| Institution: | Key Laboratory of Exploitation of Southwest Resources & the Environmental Disaster Control Engineering, Ministry of Education, Chongqing University, Chongqing 400030 |
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| Abstract: | The principle, method and techniques for measuring initial stresses in rock, by the Kaiser effect are described. And the crustal stress denotation of the underearth rock measuring point and the basic equation are derived; through making samples on 9 special directions on the beamed rock cores and doing acoustic emission experiment, the unilateral plus stress values on each direction are obtained. They are introduced into the crustal stress calculating formula, and then the values, azimuth angle and obliquity of the three principal stresses are obtained. The results of this experiment are capable of reference for engineering project. |
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| Keywords: | crustal stress acoustic emission Kaiser effect |
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