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Volume 6 Issue 4
Aug.  2015
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CHEN Rongjun, LIAO Weicheng, ZHANG Yaoping, ZHANG Xianping. Slope stability analysis of an ionic rare earth mine[J]. Nonferrous Metals Science and Engineering, 2015, 6(4): 111-115. DOI: 10.13264/j.cnki.ysjskx.2015.04.022
Citation: CHEN Rongjun, LIAO Weicheng, ZHANG Yaoping, ZHANG Xianping. Slope stability analysis of an ionic rare earth mine[J]. Nonferrous Metals Science and Engineering, 2015, 6(4): 111-115. DOI: 10.13264/j.cnki.ysjskx.2015.04.022
shu

Slope stability analysis of an ionic rare earth mine

  • a.

    School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

  • b.

    College of Applied Science, Jiangxi University of Science and Technology, Ganzhou 341000, China

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  • Received Date: December 24, 2014
  • Published Date: August 30, 2015
    Graphical Abstract
    • Abstract
  • The Flac3D software, frequently-used finite difference software was used for slope stability transfusion numerical modeling. This modeling operation was based on the practice of In-situ leaching mining in an ionic rare-earth mine. Lots of parameters were obtained after large injecting of leaching solution, such as hole temperature-pressure, displacement field, safety factor and so on. The results show that hole temperature-pressure increases with the speed over 15 Kpa after injected leaching solution 5-20 days, and reaches 93.82 kPa in the final day; the displacement is expanded to -24.44 mm in a fast speed. The safety factor quickly reduces to 1.31 from 1.74 before construction. After the excavation of intercepting drainage, hole temperature-pressure remains at 85.33~85.61 Kpa if leaching solution injection lasting for another 10 days with accumulated maximum displacement being -25.26~-26.16 mm. The safety coefficient of slope achieves a stable level of 1.27 and the slope can maintain long-term stability generally.
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    • References (15)
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