摘要
结合平煤集团十三矿的具体条件,采用声发射法和理论分析计算地应力及其分布特征。结果表明:十三矿在埋深583 m以浅,水平方向最大主应力大于垂直方向自重应力,地应力场类型呈现构造应力场型;在埋深大于583 m的深部,垂直方向自重应力大于水平方向最大主应力,呈现自重应力场型特点。
According to the specific conditions of No. 13 Coal Mine in Pingdingshan Tian＇an Coal Industry Co. , Ltd. ,the acoustic emission method and theoretical analysis were used to calculate the stress distribution characteristics. The results showed that, above the depth of about 583 m, the maximum principal stress in the horizontal direction were greater than the self-weight stress in the perpendicular direction, and the stress field types of tectonic stress were field-based. On the other hand, below the depth more than 583 m ,the self- weight stress in the perpendicular direction were larger than the maximum principal stress in the horizontal direction, and the stress field types of tectonic stress were self-weight stress.
出处
《中州煤炭》
2009年第11期6-8,19,共4页
Zhongzhou Coal
关键词
地应力测量
应力分布特征
声发射法
roek stress measurement
stress distribution characteristics
acoustic emission method
