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Volume 25 Issue 12
Dec.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(12): 1363-1372
Peng Li, Mei-feng Cai, Qi-feng Guo, and Sheng-jun Miao, Characteristics and implications of stress state in a gold mine in Ludong area, China, Int. J. Miner. Metall. Mater., 25(2018), No. 12, pp. 1363-1372. https://doi.org/10.1007/s12613-018-1690-8
Cite this article as:
Peng Li, Mei-feng Cai, Qi-feng Guo, and Sheng-jun Miao, Characteristics and implications of stress state in a gold mine in Ludong area, China, Int. J. Miner. Metall. Mater., 25(2018), No. 12, pp. 1363-1372. https://doi.org/10.1007/s12613-018-1690-8
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研究论文

Characteristics and implications of stress state in a gold mine in Ludong area, China

  • School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • Key Laboratory of High-Efficient Mining and Safety of Metal Mines(Ministry of Education of China), University of Science and Technology Beijing, Beijing 100083, China

  • Beijing Key Laboratory of Urban Underground Space Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • 通讯作者:

    Peng Li    E-mail: lpxiaobudian@163.com

  • In this study, we obtained information from twenty-one measurement points on the stress magnitudes and orientations of a gold mine in the Ludong area. We used the overcoring technique with an improved hollow inclusion strain gauge and then analyzed the distribution characteristics of the in situ stress field. The results indicate that the stress field is characterized by σH > σh > σv and σH > σv > σh (where σH, σh, and σv are the maximum horizontal, minimum horizontal, and vertical principal stresses, respectively). The regional stress field is dominated by horizontal principal stress. The σH, σh, and σv values show a gradual increasing trend with depth. The σH is predominantly oriented in the NWW-SEE or near-EW direction. We also confirmed the correspondence between the measured stress field and the regional geological structure. In addition, based on the measured stress data, we discuss the implications of the in situ stress with respect to fault activity in the mine area.
    • Research Article

    Characteristics and implications of stress state in a gold mine in Ludong area, China

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      Abstract
    • In this study, we obtained information from twenty-one measurement points on the stress magnitudes and orientations of a gold mine in the Ludong area. We used the overcoring technique with an improved hollow inclusion strain gauge and then analyzed the distribution characteristics of the in situ stress field. The results indicate that the stress field is characterized by σH > σh > σv and σH > σv > σh (where σH, σh, and σv are the maximum horizontal, minimum horizontal, and vertical principal stresses, respectively). The regional stress field is dominated by horizontal principal stress. The σH, σh, and σv values show a gradual increasing trend with depth. The σH is predominantly oriented in the NWW-SEE or near-EW direction. We also confirmed the correspondence between the measured stress field and the regional geological structure. In addition, based on the measured stress data, we discuss the implications of the in situ stress with respect to fault activity in the mine area.
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