| 利用岩石声发射效应测定海孜煤矿地应力 |
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| 引用本文： | 郑志军,张金彪,王文娟.利用岩石声发射效应测定海孜煤矿地应力[J].煤田地质与勘探,2008,36(2):68-72. |
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| 作者姓名： | 郑志军 张金彪 王文娟 |
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| 作者单位： | 1. 中国矿业大学,江苏,徐州,221008
2. 黑龙江省煤田地质勘察设计研究院,黑龙江,哈尔滨,150008 |
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| 基金项目： | 国家自然科学基金项目(40572160) |
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| 摘 要： | 对海孜矿区宏观地应力进行了理论分析,介绍岩石声发射技术进行地应力测试的基本原理和方法。通过对海孜矿区井田内9个特殊方向定向岩心取样,进行声发射试验,得到了各方向的单向正应力值,各测点的主应力值均为压应力,说明海孜矿区为构造应力场型;再利用地应力计算公式求出3个主应力的大小和方向。试验结果与实际结果基本吻合。
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| 关 键 词： | 声发射 地应力场 海孜煤矿 |
| 文章编号： | 1001-1986(2008)02-0068-04 |
| 修稿时间： | 2007年9月18日 |
Measurement of in-situ stresses with acoustic emission effect in Haizi coal mine |
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| ZHENG Zhi-jun,ZHANG Jin-biao,WANG Wen-juan.Measurement of in-situ stresses with acoustic emission effect in Haizi coal mine[J].Coal Geology & Exploration,2008,36(2):68-72. |
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| Authors: | ZHENG Zhi-jun ZHANG Jin-biao WANG Wen-juan |
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| Abstract: | Theoretical analysis on macro stress of Haizi coal mine,the principle and method for measuring initial stresses in rock using acoustic emission effect are described.Through sampling in 9 special directions on the beamed rock cores in Haizi coal mine and doing acoustic emission experiment,the unilateral plus stress values on each direction are obtained.The principle stress value at every measurement point is compressive stress value.It is suggested that the Haizi coal mine is in structural stress field.And then the data are introduced into the crustal stress calculating formula,and then the values,azimuth angle and obliquity of the three principal stresses are ob-tained.The experiment result is in accordance with actual situation. |
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| Keywords: | acoustic emission in-situ stress Haizi coal mine |
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