煤炭工程 ›› 2014, Vol. 46 ›› Issue (6): 12-15.doi: 10.11799/ce201406005

• 设计技术 • 上一篇    下一篇

露天矿高边坡稳定性加固方案优化研究

张维正1,郝哲1,张颖1,李宇男2   

  1. 1. 辽宁有色勘察研究院
    2. 沈阳大学
  • 收稿日期:2013-06-06 修回日期:2013-08-13 出版日期:2014-06-10 发布日期:2014-06-16
  • 通讯作者: 张维正 E-mail:626447443@qq.com

Optimization of Stability Reinforcement Layout of High Slope of Opencast Mine

  • Received:2013-06-06 Revised:2013-08-13 Online:2014-06-10 Published:2014-06-16

摘要:

针对海州露天矿南帮高边坡,开展稳定性加固方案优化研究。确立了高边坡稳定加固方法选取的总体原则;建立适宜计算方法,给出相应岩土参数,确定了合理安全系数指标;考虑到海州露天矿坑南帮边坡现状,设计了最优削坡方案,进行削坡治理稳定性分析,指出实施二次加固的必要性;针对锚索、抗滑桩和压坡脚的联合加固措施,以安全系数和加固造价为优化目标,采用正交设计方法,进行了加固方案优化设计和计算,给出了最优方案,指导现场工程设计和施工。

关键词: 露天矿, 高边坡, 加固方案, 优化, 安全系数, 削坡, 压坡脚

Abstract:

Stability reinforcement layout of southern high slope of Haizhou opencast mine was studied. Overall principles selecting stability reinforcement methods of high slope were established. Suitable calculation method was built, related calculation geotechnical parameters were given. Reasonable safety factor indexes were analyzed and confirmed. In consideration of situation of opencast pit in site, it designed the optimal slope cutting scheme, analyzed its stability, and pointed out necessity of second reinforcement. Aiming at safety factor and cost along with reinforcement measures of anchor rope, slide-resistant pile and foot consolidation, it make use of orthogonal design method to design and calculate the reinforcement optimization scheme so as to make the most optimal scheme. The research results can guide engineering design and construction in site.

Key words: Opencast mine, High slope, Reinforcement scheme, Optimization, Safety factor, Cutting slope, Slope foot consolidation