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现代矿业 ›› 2013, Vol. 29 ›› Issue (10): 32-35.

• 采选工程 • 上一篇    下一篇

露天高陡边坡局部加陡扩帮稳定性分析

张春月1,宋卫东1,2,吴姗1   

  1. 1.北京科技大学土木与环境工程学院;2.金属矿山高效开采与安全教育部重点实验室
  • 出版日期:2013-10-16 发布日期:2013-11-28
  • 基金资助:

    * 国家自然科学基金项目(编号:51274023),中央高校基本科研业务费专项资金资助项目(编号:FRF-SD-12-003A)。

Local Expansion Stability Analysis on the High and Steep Open-pit Slope

Zhang Chunyue1,Song Weidong 1,2,Wu Shan1   

  1. 1.Civil and Environmental Engineering School, University of Science and Technology Beijing;2.Key Laboratory of High-efficient Mining Safety of Metal Mines(Ministry of Education
  • Online:2013-10-16 Published:2013-11-28

摘要: 大冶铁矿象鼻山露天边坡经过初期开采后,已形成近50°的高陡边坡,若继续扩帮开采,需要对其稳定性进行计算,以确保生产的安全。根据地形及岩性特征,在象鼻山南帮选取两个典型地质剖面,采用Geo-slope软件分析其在扩帮前和扩帮后不同条件作用下的边坡稳定性,结果表明,各条件下的边坡最小安全系数均大于临界安全系数1.1,扩帮后整个边坡基本处于稳定状态,不会出现失稳现象。

关键词: Geo-slope, 露天边坡, 扩帮, 稳定性, 安全系数

Abstract: After the initial mining, Xiangbishan open-pit slope has formed a near 50°high and steep slope. If it continues to mining, it is necesary to calculate its stability so as to ensure the safety of production. According to the terrain and lithologic features, two typical geologic sections in the south side of Xiangbishan are selected, and the slope stability under different conditions is analyzed by using the Geo-slope software.The research results indicated that,the values of slope safety coefficient under different conditions were larger than the critical value 1.1, which means that the entire slope is stable after the expansion.

Key words: Geo-slope software, Open-pit slope, Slope expansion, Stability, Safety coefficient