摘要
针对露天煤矿软岩边坡的特点,考虑边坡安全稳定、采矿工艺及剥采比等因素,提出了基于地层结构分析的露天煤矿边坡角优化方法。该方法以边坡的地层结构和岩土体类型为基础,利用极限平衡分析法计算各工况安全系数。首先确定安全稳定条件下单台阶最优边坡角,再根据不同岩土体性质确定各岩土层的最优边坡角,最后结合采矿工艺确定露天矿边坡角。
According to the characteristics of the open-air coal soft rock slope,consider the security and stability of the slope、stripping ratio、mining technology and etc. Proposed optimization method based on the formations structure and the type of rock,calculate the factor of safety conditions by limit equilibrium analysis. First,getting the best angle of slope stability under conditions of safety,then determine the optimum slope angle of each soil layer,depending on the nature of rock and soil,finally,determine the final open pit slope angle of slope with mining process.
出处
《煤炭技术》
CAS
北大核心
2014年第11期175-178,共4页
Coal Technology
关键词
边坡角
优化方法
地层结构分析
slope angle
optimization method
formation structure analysis
