基于FLAC3D的露天矿山深部开采边坡稳定性研究
Slope Stability of Deep Mining in Open Pit Based on FLAC3D
王怀 1曾庆友2
作者信息
- 1. 宜章志存新材料有限公司,湖南 郴州 424200;湖南科技大学,湖南 湘潭 411201
- 2. 江西有色地质矿产勘查开发院,江西 南昌 330001
- 折叠
摘要
为研究复杂地质条件露天矿山深部开采整体边坡稳定性问题,根据现场钻孔数据和地质调查,依次通过犀牛软件建立复杂三维地质体模型、griddle软件对模型进行网格划分、导入FLAC 3D三维数值分析软件进行计算,最终得到矿山露天边坡的应力大小(最大拉应力为0.3 MPa)、位移量(最大位移量13 cm)、塑性区分布、剪应变增量,最小安全系数值等结果.通过对三维软件计算结果的逐个分析,得出该露天矿山深部开采边坡的稳定情况,Ⅰ区边坡稳定性略差,Ⅲ区的边坡稳定性最差,Ⅳ、Ⅴ区边坡稳定性好,该结论为矿山深部开采边坡监测划分重点区域和矿山安全生产提供理论依据和技术保障.
Abstract
In order to study the stability of the overall slope of deep mining in open-pit mines with complex geolog-ical conditions,according to the on-site drilling data and geological survey,the complex three-dimensional geolog-ical body model was established by the rhinoceros software,the model was meshed by the griddle software,and the FLAC3D three-dimensional numerical analysis software was imported for calculation,and finally the stress size,dis-placement,plastic zone distribution,shear strain increment and minimum safety factor value of the open-pit slope of the mine were obtained.Through the analysis of the calculation results of the three-dimensional software,the stabil-ity of the deep mining slope of the open-pit mine is obtained,which provides a theoretical basis and technical sup-port for the monitoring and division of key areas of the deep mining slope of the mine and the safety production of the mine.
关键词
露天矿山/深部开采/边坡/FLAC3DKey words
open pit mine/deep mining/slope/FLAC3D引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据