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金属矿山 ›› 2009, Vol. 39 ›› Issue (07): 115-118+163.

• 机电与自动化 • 上一篇    下一篇

基于Geo-Slope的拜耳法干式赤泥堆场稳定性分析

欧孝夺1,樊克世2,饶平平1   

  1. 1.广西大学;2.广西安全生产监督管理局
  • 出版日期:2009-07-15 发布日期:2011-04-26
  • 基金资助:

    国家自然科学基金项目(编号:40772190)。

Geo-Slope-based Analysis for the Dump Stability of Dry Red Mud from Bayer Process

Ou Xiaoduo1,Fan Keshi2,Rao Pingping1   

  1. 1.Guangxi University;2, Guangxi Safety Production Supervision and Administration Bureau
  • Online:2009-07-15 Published:2011-04-26

摘要: 针对拜耳法工艺生产赤泥的特点,分析了平果铝赤泥堆场的特征以及堆场内赤泥的物理力学指标;结合干法排放、堆存赤泥所引起的堆场表面裂缝问题,阐述了裂缝产生的具体成因,并采用Geo-Slope软件中的SLOPE/W模块计算裂缝条件下赤泥堆积坝边坡稳定性,结果表明,裂缝的存在使赤泥坝静力安全系数降低0.5%左右,赤泥坝在当前堆积到二级子坝正常工况下是稳定的。

关键词: Geo-Slope, 拜耳法, 赤泥堆场, 裂缝, 稳定性

Abstract: In light of the features of red mud from Bayer process, the characteristics of Pingguolu red mud dump and the physical and mechanical properties of the red mud in the dump are analyzed.The causes for the cracks in the surface of the dump stacked by red mud dry discharge are elaborated and the stability of red mud dump slope with crack existence is calculated by using the SLOP/W module in Geo-Slope software.The result indicates that the existence of cracks can reduce the static safety coefficient of the red mud dam by about 0.5% and the red mud dump which has been stacked to the secondary sub-dam is stable at normal operation conditions.

Key words: Geo-Slope, Bayer process, Red mud dump, Cracks, Stability