考虑粒径分级的弓长岭某排土场稳定性分析研究  

Stability Analysis and Research on a Dumping Site at Gongchangling Considering Particle Size Grading

作　　者：胡军[1] 赵天毅[1] 张晓龙[2] 袁永涛 

机构地区：[1]辽宁科技大学土木工程学院,辽宁鞍山市114044 [2]辽宁科技大学矿业工程学院,辽宁鞍山市114044 [3]新疆哈密英格玛煤电投资有限公司,新疆哈密市839000

出　　处：《矿业研究与开发》2017年第2期78-82,共5页Mining Research and Development

摘　　要：针对超高单台阶排土场存在明显的粒径分级这一特点,以弓长岭某排土场为实例,利用元胞自动机模型模拟现场粒径分布,并借助FLAC^(3D)软件,构建了考虑超高单台阶排土场边坡模型,对比分析了均质边坡和考虑粒径分级边坡的稳定性。结果表明:采用元胞自动机与FLAC^(3D)软件相结合的分析方法,能较好模拟排土场的粒径分级现状,得出粒径分级情况下,可能滑动面位置上移,安全系数增加,有利于排土场稳定性的结论。Considering that the apparently particle size grading at dumping site with super-high single step, taking a dumping site in Gongchangling as an example, the cellular automaton model was used to simulate particle size distribution. The dumping slope model of considering super-high single step was built by FLAC3D. Comparative analysis was carried out on the homogene- ous slope and slope stability considering particle size grading. The results showed that the analysis method combining the cellu- lar automatOn model with FLAC3D software could simulate the particle size grading of dumping site appropriately. Under the condition of particle size grading, it was possible that sliding surfaces moved up and the safety factor increased, which was ben- efited to the stability of the dumping site.

关 键 词：超高排土场 散体粒径分级 元胞自动机 边坡稳定 性分析 

分 类 号：TD854.7[矿业工程—金属矿开采]