摘要
某铜矿井下现采用3种不同采矿进路布置开采方案.为研究不同采矿进路布置方案的开采稳定性,在前期现场调查、室内实验的基础上,利用ANSYS软件进行建模,然后导入FLAC3D有限差分软件中,采用摩尔-库仑破坏准则计算,模拟自重条件下,3种不同方案的应力分布情况.分析3种不同采矿进路布置开采后的最大及最小主应力分布情况,研究结果表明:采矿进路布置沿矿体走向与上盘接触的开采稳定性程度最低.
The paper adopts three different approaches of mining entrances under the well in a copper mine. In order to study the stability of different approaches, three models are built by using ANSYS software based on the field investigation and laboratory experiment, then led into FLAC3D finite software. Adopting Moore - Coulomb failure criterion calculation, three different schemes of stress distribution are simulated in gravity conditions in order to study stability. Through the analysis of the maximal and minimum principal stress after mining in three different mining entrances, the results indicate that the stability of mining vertical the ore body strike connected with the upper plate is the lowest.
出处
《有色金属科学与工程》
CAS
2013年第2期46-50,共5页
Nonferrous Metals Science and Engineering
基金
国家重点基础研究发展计划项目资助(2011cb411913)
科技部十一五科技支撑计划项目(2008BAB32B03)
江西省教育厅青年科学基金项目(GJJ 11137
GJJ12361)
关键词
采矿进路
稳定性
数值模拟
mining entrance
stability
numerical simulation
